/* * 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: head/sys/dev/firewire/firewire.c 103285 2002-09-13 12:31:56Z ikob $ * */ #include #include #include #include #include #include #include #include #include #include #include #include #include /* for rdtsc proto for clock.h below */ #include #include #include #include #include /* for vtophys proto */ #include #include /* used by smbus and newbus */ #include /* used by newbus */ #include /* used by newbus */ #include /* used by newbus */ #include #include #include #include #include #include #include #include int firewire_debug=0; SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "Firewire Subsystem"); SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, "Firewire driver debug flag"); #define CDEV_MAJOR 127 #define FW_MAXASYRTY 4 #define FW_MAXDEVRCNT 4 #define FWNODE_INVAL 0xffff #define XFER_TIMEOUT 0 static d_open_t fw_open; static d_close_t fw_close; static d_ioctl_t fw_ioctl; static d_poll_t fw_poll; static d_read_t fw_read; /* for Isochronous packet */ static d_write_t fw_write; static d_mmap_t fw_mmap; 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 struct fw_bind *fw_bindlookup __P((struct firewire_comm *, u_int32_t, u_int32_t)); static void fw_try_bmr __P((void *)); static void fw_try_bmr_callback __P((struct fw_xfer *)); static u_int16_t fw_noderesolve __P((struct firewire_comm *, struct fw_eui64)); 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 *)); static void fw_vmaccess __P((struct fw_xfer *)); 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(*))); 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_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"}; u_int maxrec[6]={512,1024,2048,4096,8192,0}; #define MAX_GAPHOP 16 u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 20, 23, 25, 28, 31, 33, 36, 39, 42}; /* * The probe routine. */ struct cdevsw firewire_cdevsw = { fw_open, fw_close, fw_read, fw_write, fw_ioctl, fw_poll, fw_mmap, nostrategy, "fw", CDEV_MAJOR, nodump, nopsize, D_MEM }; static driver_t firewire_driver = { "firewire", firewire_methods, sizeof(struct firewire_softc), }; static int fw_open (dev_t dev, int flags, int fmt, fw_proc *td) { struct firewire_softc *sc; int unit = DEV2UNIT(dev); int sub = DEV2DMACH(dev); int err = 0; if (DEV_FWMEM(dev)) return fwmem_open(dev, flags, fmt, td); sc = devclass_get_softc(firewire_devclass, unit); if(sc->fc->ir[sub]->flag & FWXFERQ_OPEN){ err = EBUSY; return err; } if(sc->fc->it[sub]->flag & FWXFERQ_OPEN){ err = EBUSY; return err; } if(sc->fc->ir[sub]->flag & FWXFERQ_MODEMASK){ err = EBUSY; return err; } /* Default is per packet mode */ sc->fc->ir[sub]->flag |= FWXFERQ_OPEN; sc->fc->it[sub]->flag |= FWXFERQ_OPEN; sc->fc->ir[sub]->flag |= FWXFERQ_PACKET; return err; } static int fw_close (dev_t dev, int flags, int fmt, fw_proc *td) { struct firewire_softc *sc; int unit = DEV2UNIT(dev); int sub = DEV2DMACH(dev); struct fw_xfer *xfer; struct fw_dvbuf *dvbuf; struct fw_bind *fwb; int err = 0; if (DEV_FWMEM(dev)) return fwmem_close(dev, flags, fmt, td); sc = devclass_get_softc(firewire_devclass, unit); if(!(sc->fc->ir[sub]->flag & FWXFERQ_OPEN)){ err = EINVAL; return err; } sc->fc->ir[sub]->flag &= ~FWXFERQ_OPEN; if(!(sc->fc->it[sub]->flag & FWXFERQ_OPEN)){ err = EINVAL; return err; } sc->fc->it[sub]->flag &= ~FWXFERQ_OPEN; if(sc->fc->ir[sub]->flag & FWXFERQ_RUNNING){ sc->fc->irx_disable(sc->fc, sub); } if(sc->fc->it[sub]->flag & FWXFERQ_RUNNING){ sc->fc->it[sub]->flag &= ~FWXFERQ_RUNNING; sc->fc->itx_disable(sc->fc, sub); } if(sc->fc->it[sub]->flag & FWXFERQ_DV){ if((dvbuf = sc->fc->it[sub]->dvproc) != NULL){ free(dvbuf->buf, M_DEVBUF); sc->fc->it[sub]->dvproc = NULL; } if((dvbuf = sc->fc->it[sub]->dvdma) != NULL){ free(dvbuf->buf, M_DEVBUF); sc->fc->it[sub]->dvdma = NULL; } while((dvbuf = STAILQ_FIRST(&sc->fc->it[sub]->dvvalid)) != NULL){ STAILQ_REMOVE_HEAD(&sc->fc->it[sub]->dvvalid, link); free(dvbuf->buf, M_DEVBUF); } while((dvbuf = STAILQ_FIRST(&sc->fc->it[sub]->dvfree)) != NULL){ STAILQ_REMOVE_HEAD(&sc->fc->it[sub]->dvfree, link); free(dvbuf->buf, M_DEVBUF); } free(sc->fc->it[sub]->dvbuf, M_DEVBUF); sc->fc->it[sub]->dvbuf = NULL; } if(sc->fc->ir[sub]->flag & FWXFERQ_EXTBUF){ free(sc->fc->ir[sub]->buf, M_DEVBUF); sc->fc->ir[sub]->buf = NULL; free(sc->fc->ir[sub]->bulkxfer, M_DEVBUF); sc->fc->ir[sub]->bulkxfer = NULL; sc->fc->ir[sub]->flag &= ~FWXFERQ_EXTBUF; sc->fc->ir[sub]->psize = FWPMAX_S400; sc->fc->ir[sub]->maxq = FWMAXQUEUE; } if(sc->fc->it[sub]->flag & FWXFERQ_EXTBUF){ free(sc->fc->it[sub]->buf, M_DEVBUF); sc->fc->it[sub]->buf = NULL; free(sc->fc->it[sub]->bulkxfer, M_DEVBUF); sc->fc->it[sub]->bulkxfer = NULL; sc->fc->it[sub]->dvbuf = NULL; sc->fc->it[sub]->flag &= ~FWXFERQ_EXTBUF; sc->fc->it[sub]->psize = FWPMAX_S400; sc->fc->it[sub]->maxq = FWMAXQUEUE; } for(xfer = STAILQ_FIRST(&sc->fc->ir[sub]->q); xfer != NULL; xfer = STAILQ_FIRST(&sc->fc->ir[sub]->q)){ sc->fc->ir[sub]->queued--; STAILQ_REMOVE_HEAD(&sc->fc->ir[sub]->q, link); xfer->resp = 0; switch(xfer->act_type){ case FWACT_XFER: fw_xfer_done(xfer); break; default: break; } fw_xfer_free(xfer); } for(fwb = STAILQ_FIRST(&sc->fc->ir[sub]->binds); fwb != NULL; fwb = STAILQ_FIRST(&sc->fc->ir[sub]->binds)){ STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist); STAILQ_REMOVE_HEAD(&sc->fc->ir[sub]->binds, chlist); free(fwb, M_DEVBUF); } sc->fc->ir[sub]->flag &= ~FWXFERQ_MODEMASK; sc->fc->it[sub]->flag &= ~FWXFERQ_MODEMASK; return err; } /* * read request. */ static int fw_read (dev_t dev, struct uio *uio, int ioflag) { struct firewire_softc *sc; struct fw_xferq *ir; struct fw_xfer *xfer; int err = 0, s, slept = 0; int unit = DEV2UNIT(dev); int sub = DEV2DMACH(dev); struct fw_pkt *fp; if (DEV_FWMEM(dev)) return fwmem_read(dev, uio, ioflag); sc = devclass_get_softc(firewire_devclass, unit); ir = sc->fc->ir[sub]; if(ir->flag & FWXFERQ_PACKET){ ir->stproc = NULL; } readloop: xfer = STAILQ_FIRST(&ir->q); if(!(ir->flag & FWXFERQ_PACKET) && ir->stproc == NULL){ ir->stproc = STAILQ_FIRST(&ir->stvalid); if(ir->stproc != NULL){ s = splfw(); STAILQ_REMOVE_HEAD(&ir->stvalid, link); splx(s); ir->queued = 0; } } if(xfer == NULL && ir->stproc == NULL){ if(slept == 0){ slept = 1; if(!(ir->flag & FWXFERQ_RUNNING) && (ir->flag & FWXFERQ_PACKET)){ err = sc->fc->irx_enable(sc->fc, sub); } if(err){ return err; } ir->flag |= FWXFERQ_WAKEUP; err = tsleep((caddr_t)ir, FWPRI, "fw_read", hz); if(err){ ir->flag &= ~FWXFERQ_WAKEUP; return err; } goto readloop; }else{ err = EIO; return err; } }else if(xfer != NULL){ s = splfw(); ir->queued --; STAILQ_REMOVE_HEAD(&ir->q, link); splx(s); fp = (struct fw_pkt *)(xfer->recv.buf + xfer->recv.off); if(sc->fc->irx_post != NULL) sc->fc->irx_post(sc->fc, fp->mode.ld); err = uiomove(xfer->recv.buf + xfer->recv.off, xfer->recv.len, uio); fw_xfer_free( xfer); }else if(ir->stproc != NULL){ fp = (struct fw_pkt *)(ir->stproc->buf + ir->queued * ir->psize); if(sc->fc->irx_post != NULL) sc->fc->irx_post(sc->fc, fp->mode.ld); if(ntohs(fp->mode.stream.len) == 0){ err = EIO; return err; } err = uiomove((caddr_t)fp, ntohs(fp->mode.stream.len) + sizeof(u_int32_t), uio); fp->mode.stream.len = 0; ir->queued ++; if(ir->queued >= ir->bnpacket){ s = splfw(); ir->stproc->flag = 0; STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link); splx(s); ir->stproc = NULL; } } #if 0 if(STAILQ_FIRST(&ir->q) == NULL && (ir->flag & FWXFERQ_RUNNING) && (ir->flag & FWXFERQ_PACKET)){ err = sc->fc->irx_enable(sc->fc, sub); } #endif #if 0 if(STAILQ_FIRST(&ir->stvalid) == NULL && (ir->flag & FWXFERQ_RUNNING) && !(ir->flag & FWXFERQ_PACKET)){ err = sc->fc->irx_enable(sc->fc, sub); } #endif return err; } static int fw_write (dev_t dev, struct uio *uio, int ioflag) { int err = 0; struct firewire_softc *sc; int unit = DEV2UNIT(dev); int sub = DEV2DMACH(dev); int tl, s, slept = 0; struct fw_pkt *fp; struct fw_xfer *xfer; struct fw_xferq *xferq; struct firewire_comm *fc; struct fw_xferq *it; if (DEV_FWMEM(dev)) return fwmem_write(dev, uio, ioflag); sc = devclass_get_softc(firewire_devclass, unit); fc = sc->fc; it = sc->fc->it[sub]; fp = (struct fw_pkt *)uio->uio_iov->iov_base; switch(fp->mode.common.tcode){ case FWTCODE_RREQQ: case FWTCODE_RREQB: case FWTCODE_LREQ: err = EINVAL; return err; case FWTCODE_WREQQ: case FWTCODE_WREQB: xferq = fc->atq; break; case FWTCODE_STREAM: if(it->flag & FWXFERQ_PACKET){ xferq = fc->atq; }else{ xferq = NULL; } break; case FWTCODE_WRES: case FWTCODE_RRESQ: case FWTCODE_RRESB: case FWTCODE_LRES: xferq = fc->ats; break; default: err = EINVAL; return err; } /* Discard unsent buffered stream packet, when sending Asyrequrst */ if(xferq != NULL && it->stproc != NULL){ s = splfw(); it->stproc->flag = 0; STAILQ_INSERT_TAIL(&it->stfree, it->stproc, link); splx(s); it->stproc = NULL; } if(xferq == NULL && !(it->flag & FWXFERQ_DV)){ isoloop: if(it->stproc == NULL){ it->stproc = STAILQ_FIRST(&it->stfree); if(it->stproc != NULL){ s = splfw(); STAILQ_REMOVE_HEAD(&it->stfree, link); splx(s); it->queued = 0; }else if(slept == 0){ slept = 1; err = sc->fc->itx_enable(sc->fc, sub); if(err){ return err; } err = tsleep((caddr_t)it, FWPRI, "fw_write", hz); if(err){ return err; } goto isoloop; }else{ err = EIO; return err; } } fp = (struct fw_pkt *)(it->stproc->buf + it->queued * it->psize); fp->mode.stream.len = htons(uio->uio_resid - sizeof(u_int32_t)); err = uiomove(it->stproc->buf + it->queued * it->psize, uio->uio_resid, uio); it->queued ++; if(it->queued >= it->btpacket){ s = splfw(); STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); splx(s); it->stproc = NULL; fw_tbuf_update(sc->fc, sub, 0); err = sc->fc->itx_enable(sc->fc, sub); } return err; } if(xferq == NULL && it->flag & FWXFERQ_DV){ dvloop: if(it->dvproc == NULL){ it->dvproc = STAILQ_FIRST(&it->dvfree); if(it->dvproc != NULL){ s = splfw(); STAILQ_REMOVE_HEAD(&it->dvfree, link); splx(s); it->dvptr = 0; }else if(slept == 0){ slept = 1; err = sc->fc->itx_enable(sc->fc, sub); if(err){ return err; } err = tsleep((caddr_t)it, FWPRI, "fw_write", hz); if(err){ return err; } goto dvloop; }else{ err = EIO; return err; } } fp = (struct fw_pkt *)(it->dvproc->buf + it->queued * it->psize); fp->mode.stream.len = htons(uio->uio_resid - sizeof(u_int32_t)); err = uiomove(it->dvproc->buf + it->dvptr, uio->uio_resid, uio); it->dvptr += it->psize; if(err){ return err; } if(it->dvptr >= it->psize * it->dvpacket){ s = splfw(); STAILQ_INSERT_TAIL(&it->dvvalid, it->dvproc, link); splx(s); it->dvproc = NULL; err = fw_tbuf_update(sc->fc, sub, 0); if(err){ return err; } err = sc->fc->itx_enable(sc->fc, sub); } return err; } if(xferq != NULL){ xfer = fw_xfer_alloc(); if(xfer == NULL){ err = ENOMEM; return err; } xfer->send.buf = malloc(uio->uio_resid, M_DEVBUF, M_NOWAIT); if(xfer->send.buf == NULL){ fw_xfer_free( xfer); err = ENOBUFS; return err; } xfer->dst = ntohs(fp->mode.hdr.dst); switch(fp->mode.common.tcode){ case FWTCODE_WREQQ: case FWTCODE_WREQB: if((tl = fw_get_tlabel(fc, xfer)) == -1 ){ fw_xfer_free( xfer); err = EAGAIN; return err; } fp->mode.hdr.tlrt = tl << 2; default: break; } xfer->tl = fp->mode.hdr.tlrt >> 2; xfer->send.len = uio->uio_resid; xfer->send.off = 0; xfer->tcode = fp->mode.common.tcode; xfer->spd = 0;/* XXX: how to setup it */ xfer->fc = fc; xfer->q = xferq; xfer->act_type = FWACT_XFER; xfer->act.hand = fw_asy_callback; xfer->retry_req = fw_asybusy; err = uiomove(xfer->send.buf, uio->uio_resid, uio); if(err){ return err; } fw_asystart(xfer); err = tsleep((caddr_t)xfer, FWPRI, "fw_write", hz); if(xfer->resp == EBUSY) return EBUSY; fw_xfer_free( xfer); return err; } return EINVAL; } /* * transmitter buffer update. */ int fw_tbuf_update(struct firewire_comm *fc, int sub, int flag){ struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; struct fw_dvbuf *dvbuf = NULL; struct fw_xferq *it; int s, err = 0, i, j, chtag; struct fw_pkt *fp; u_int64_t tmpsync, dvsync; it = fc->it[sub]; s = splfw(); if(it->stdma == NULL){ bulkxfer = STAILQ_FIRST(&it->stvalid); }else if(flag != 0){ bulkxfer = STAILQ_FIRST(&it->stvalid); if(bulkxfer == it->stdma){ STAILQ_REMOVE_HEAD(&it->stvalid, link); it->stdma->flag = 0; STAILQ_INSERT_TAIL(&it->stfree, it->stdma, link); if(!(it->flag & FWXFERQ_DV)) wakeup(it); } bulkxfer = STAILQ_FIRST(&it->stvalid); }else{ bulkxfer = it->stdma; } splx(s); if(bulkxfer != NULL){ s = splfw(); bulkxfer2 = STAILQ_NEXT(bulkxfer, link); #if 0 if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){ bulkxfer2 = STAILQ_FIRST(&it->stfree); STAILQ_REMOVE_HEAD(&it->stfree, link); splx(s); bcopy(bulkxfer->buf, bulkxfer2->buf, it->psize * it->btpacket); s = splfw(); STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link); } #endif splx(s); } it->stdma = bulkxfer; it->stdma2 = bulkxfer2; if(it->flag & FWXFERQ_DV){ chtag = it->flag & 0xff; dvloop: if(it->dvdma == NULL){ dvbuf = STAILQ_FIRST(&it->dvvalid); if(dvbuf != NULL){ s = splfw(); STAILQ_REMOVE_HEAD(&it->dvvalid, link); it->dvdma = dvbuf; splx(s); it->queued = 0; } } if(it->dvdma == NULL) return err; it->stproc = STAILQ_FIRST(&it->stfree); if(it->stproc != NULL){ s = splfw(); STAILQ_REMOVE_HEAD(&it->stfree, link); splx(s); }else{ return err; } /* * Insert least significant 12 bits timestamp value by computation. * Highest significant 4 bits is insert at just before packet sending. */ fp = (struct fw_pkt *)(it->stproc->buf); /* XXX: Parameter relies on NTSC type DV video */ tmpsync = 3072 * 8000 * 100 / 2997; tmpsync *= it->dvsync; dvsync = tmpsync; dvsync %= 0xc00; fp->mode.ld[2] = htonl(0x80000000 | (dvsync % 0xc00)); it->dvsync ++; it->dvsync %= 2997; for( i = 0, j = 0 ; i < it->dvpacket ; i++){ bcopy(it->dvdma->buf + it->queued * it->psize, it->stproc->buf + j * it->psize, it->psize); fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); fp->mode.stream.len = htons(488); fp->mode.stream.chtag = chtag; fp->mode.stream.tcode = FWTCODE_STREAM; fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc); it->dvdbc++; it->dvdbc %= 256; it->queued ++; j++; /* XXX: Parameter relies on NTSC type DV video */ #if 1 #define DVDIFF 203 #define DVFRAC 2997 #else #define DVDIFF 127 #define DVFRAC 1875 #endif it->dvdiff += DVDIFF; if(it->dvdiff >= DVFRAC){ it->dvdiff %= DVFRAC; fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); fp->mode.stream.len = htons(0x8); fp->mode.stream.chtag = chtag; fp->mode.stream.tcode = FWTCODE_STREAM; fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc); j++; } } it->stproc->npacket = j; s = splfw(); STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); splx(s); if(it->queued >= it->dvpacket){ s = splfw(); STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link); it->dvdma = NULL; splx(s); wakeup(it); goto dvloop; } } return err; } /* * receving buffer update. */ int fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){ struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; struct fw_xferq *ir; int s, err = 0; ir = fc->ir[sub]; s = splfw(); if(ir->stdma != NULL){ if(flag != 0){ STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link); }else{ ir->stdma->flag = 0; STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link); } } if(ir->stdma2 != NULL){ bulkxfer = ir->stdma2; bulkxfer2 = STAILQ_FIRST(&ir->stfree); if(bulkxfer2 != NULL){ STAILQ_REMOVE_HEAD(&ir->stfree, link); } }else{ bulkxfer = STAILQ_FIRST(&ir->stfree); if(bulkxfer != NULL){ STAILQ_REMOVE_HEAD(&ir->stfree, link); bulkxfer2 = STAILQ_FIRST(&ir->stfree); if(bulkxfer2 != NULL){ STAILQ_REMOVE_HEAD(&ir->stfree, link); } }else{ bulkxfer = STAILQ_FIRST(&ir->stvalid); STAILQ_REMOVE_HEAD(&ir->stvalid, link); } } splx(s); ir->stdma = bulkxfer; ir->stdma2 = bulkxfer2; return err; } /* * ioctl support. */ int fw_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td) { struct firewire_softc *sc; int unit = DEV2UNIT(dev); int sub = DEV2DMACH(dev); int i, len, err = 0; struct fw_device *fwdev; struct fw_bind *fwb; struct fw_xferq *ir, *it; struct fw_xfer *xfer; struct fw_pkt *fp; struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data; struct fw_asyreq *asyreq = (struct fw_asyreq *)data; struct fw_isochreq *ichreq = (struct fw_isochreq *)data; struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data; struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data; #if 0 struct fw_map_buf *map_buf = (struct fw_map_buf *)data; #endif struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data; if (DEV_FWMEM(dev)) return fwmem_ioctl(dev, cmd, data, flag, td); sc = devclass_get_softc(firewire_devclass, unit); if (!data) return(EINVAL); switch (cmd) { case FW_STSTREAM: sc->fc->it[sub]->flag &= ~0xff; sc->fc->it[sub]->flag |= (0x3f & ichreq->ch); sc->fc->it[sub]->flag |= ((0x3 & ichreq->tag) << 6); err = 0; break; case FW_GTSTREAM: ichreq->ch = sc->fc->it[sub]->flag & 0x3f; ichreq->tag =(sc->fc->it[sub]->flag) >> 2 & 0x3; err = 0; break; case FW_SRSTREAM: sc->fc->ir[sub]->flag &= ~0xff; sc->fc->ir[sub]->flag |= (0x3f & ichreq->ch); sc->fc->ir[sub]->flag |= ((0x3 & ichreq->tag) << 6); err = sc->fc->irx_enable(sc->fc, sub); break; case FW_GRSTREAM: ichreq->ch = sc->fc->ir[sub]->flag & 0x3f; ichreq->tag =(sc->fc->ir[sub]->flag) >> 2 & 0x3; err = 0; break; case FW_SSTDV: ibufreq = (struct fw_isobufreq *) malloc(sizeof(struct fw_isobufreq), M_DEVBUF, M_NOWAIT); if(ibufreq == NULL){ err = ENOMEM; break; } #define FWDVPACKET 250 #define FWDVPMAX 512 ibufreq->rx.nchunk = 8; ibufreq->rx.npacket = 50; ibufreq->rx.psize = FWDVPMAX; ibufreq->tx.nchunk = 5; ibufreq->tx.npacket = 300; ibufreq->tx.psize = FWDVPMAX; err = fw_ioctl(dev, FW_SSTBUF, (caddr_t)ibufreq, flag, td); sc->fc->it[sub]->dvpacket = FWDVPACKET; free(ibufreq, M_DEVBUF); /* reserve a buffer space */ #define NDVCHUNK 8 sc->fc->it[sub]->dvproc = NULL; sc->fc->it[sub]->dvdma = NULL; sc->fc->it[sub]->flag |= FWXFERQ_DV; sc->fc->it[sub]->dvbuf = (struct fw_dvbuf *)malloc(sizeof(struct fw_dvbuf) * NDVCHUNK, M_DEVBUF, M_DONTWAIT); STAILQ_INIT(&sc->fc->it[sub]->dvvalid); STAILQ_INIT(&sc->fc->it[sub]->dvfree); for( i = 0 ; i < NDVCHUNK ; i++){ sc->fc->it[sub]->dvbuf[i].buf = malloc(FWDVPMAX * sc->fc->it[sub]->dvpacket, M_DEVBUF, M_DONTWAIT); STAILQ_INSERT_TAIL(&sc->fc->it[sub]->dvfree, &sc->fc->it[sub]->dvbuf[i], link); } break; case FW_SSTBUF: ir = sc->fc->ir[sub]; it = sc->fc->it[sub]; if(ir->flag & FWXFERQ_RUNNING || it->flag & FWXFERQ_RUNNING){ return(EBUSY); } if((ir->flag & FWXFERQ_EXTBUF) || (it->flag & FWXFERQ_EXTBUF)){ return(EBUSY); } if((ibufreq->rx.nchunk * ibufreq->rx.psize * ibufreq->rx.npacket) + (ibufreq->tx.nchunk * ibufreq->tx.psize * ibufreq->tx.npacket) <= 0){ return(EINVAL); } if(ibufreq->rx.nchunk > FWSTMAXCHUNK || ibufreq->tx.nchunk > FWSTMAXCHUNK){ return(EINVAL); } ir->bulkxfer = (struct fw_bulkxfer *)malloc(sizeof(struct fw_bulkxfer) * ibufreq->rx.nchunk, M_DEVBUF, M_DONTWAIT); if(ir->bulkxfer == NULL){ return(ENOMEM); } it->bulkxfer = (struct fw_bulkxfer *)malloc(sizeof(struct fw_bulkxfer) * ibufreq->tx.nchunk, M_DEVBUF, M_DONTWAIT); if(it->bulkxfer == NULL){ return(ENOMEM); } ir->buf = malloc( ibufreq->rx.nchunk * ibufreq->rx.npacket * ((ibufreq->rx.psize + 3) &~3), M_DEVBUF, M_DONTWAIT); if(ir->buf == NULL){ free(ir->bulkxfer, M_DEVBUF); free(it->bulkxfer, M_DEVBUF); ir->bulkxfer = NULL; it->bulkxfer = NULL; it->buf = NULL; return(ENOMEM); } it->buf = malloc( ibufreq->tx.nchunk * ibufreq->tx.npacket * ((ibufreq->tx.psize + 3) &~3), M_DEVBUF, M_DONTWAIT); if(it->buf == NULL){ free(ir->bulkxfer, M_DEVBUF); free(it->bulkxfer, M_DEVBUF); free(ir->buf, M_DEVBUF); ir->bulkxfer = NULL; it->bulkxfer = NULL; it->buf = NULL; return(ENOMEM); } ir->bnchunk = ibufreq->rx.nchunk; ir->bnpacket = ibufreq->rx.npacket; ir->btpacket = ibufreq->rx.npacket; ir->psize = (ibufreq->rx.psize + 3) & ~3; ir->queued = 0; it->bnchunk = ibufreq->tx.nchunk; it->bnpacket = ibufreq->tx.npacket; it->btpacket = ibufreq->tx.npacket; it->psize = (ibufreq->tx.psize + 3) & ~3; ir->queued = 0; it->dvdbc = 0; it->dvdiff = 0; it->dvsync = 0; STAILQ_INIT(&ir->stvalid); STAILQ_INIT(&ir->stfree); ir->stdma = NULL; ir->stdma2 = NULL; ir->stproc = NULL; STAILQ_INIT(&it->stvalid); STAILQ_INIT(&it->stfree); it->stdma = NULL; it->stdma2 = NULL; it->stproc = NULL; for(i = 0 ; i < sc->fc->ir[sub]->bnchunk; i++){ ir->bulkxfer[i].buf = ir->buf + i * sc->fc->ir[sub]->bnpacket * sc->fc->ir[sub]->psize; ir->bulkxfer[i].flag = 0; STAILQ_INSERT_TAIL(&ir->stfree, &ir->bulkxfer[i], link); ir->bulkxfer[i].npacket = ir->bnpacket; } for(i = 0 ; i < sc->fc->it[sub]->bnchunk; i++){ it->bulkxfer[i].buf = it->buf + i * sc->fc->it[sub]->bnpacket * sc->fc->it[sub]->psize; it->bulkxfer[i].flag = 0; STAILQ_INSERT_TAIL(&it->stfree, &it->bulkxfer[i], link); it->bulkxfer[i].npacket = it->bnpacket; } ir->flag &= ~FWXFERQ_MODEMASK; ir->flag |= FWXFERQ_STREAM; ir->flag |= FWXFERQ_EXTBUF; it->flag &= ~FWXFERQ_MODEMASK; it->flag |= FWXFERQ_STREAM; it->flag |= FWXFERQ_EXTBUF; err = 0; break; case FW_GSTBUF: ibufreq->rx.nchunk = sc->fc->ir[sub]->bnchunk; ibufreq->rx.npacket = sc->fc->ir[sub]->bnpacket; ibufreq->rx.psize = sc->fc->ir[sub]->psize; ibufreq->tx.nchunk = sc->fc->it[sub]->bnchunk; ibufreq->tx.npacket = sc->fc->it[sub]->bnpacket; ibufreq->tx.psize = sc->fc->it[sub]->psize; break; case FW_ASYREQ: xfer = fw_xfer_alloc(); if(xfer == NULL){ err = ENOMEM; return err; } fp = &asyreq->pkt; switch (asyreq->req.type) { case FWASREQNODE: xfer->dst = ntohs(fp->mode.hdr.dst); break; case FWASREQEUI: xfer->dst = fw_noderesolve(sc->fc, asyreq->req.dst.eui); if(xfer->dst == FWNODE_INVAL ){ printf("%s:cannot found node\n", device_get_nameunit(sc->fc->dev)); err = EINVAL; goto error; } fp->mode.hdr.dst = htons(FWLOCALBUS | xfer->dst); break; case FWASRESTL: /* XXX what's this? */ break; case FWASREQSTREAM: /* nothing to do */ break; } xfer->spd = asyreq->req.sped; xfer->send.len = asyreq->req.len; xfer->send.buf = malloc(xfer->send.len, M_DEVBUF, M_NOWAIT); if(xfer->send.buf == NULL){ return ENOMEM; } xfer->send.off = 0; bcopy(fp, xfer->send.buf, xfer->send.len); xfer->act.hand = fw_asy_callback; err = fw_asyreq(sc->fc, sub, xfer); if(err){ fw_xfer_free( xfer); return err; } err = tsleep((caddr_t)xfer, FWPRI, "asyreq", hz); if(err == 0){ if(asyreq->req.len >= xfer->recv.len){ asyreq->req.len = xfer->recv.len; }else{ err = EINVAL; } bcopy(xfer->recv.buf + xfer->recv.off, fp, asyreq->req.len); } error: fw_xfer_free( xfer); break; case FW_IBUSRST: sc->fc->ibr(sc->fc); break; case FW_CBINDADDR: fwb = fw_bindlookup(sc->fc, bindreq->start.hi, bindreq->start.lo); if(fwb == NULL){ err = EINVAL; break; } STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist); STAILQ_REMOVE(&sc->fc->ir[sub]->binds, fwb, fw_bind, chlist); free(fwb, M_DEVBUF); break; case FW_SBINDADDR: if(bindreq->len <= 0 ){ err = EINVAL; break; } if(bindreq->start.hi > 0xffff ){ err = EINVAL; break; } fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT); if(fwb == NULL){ err = ENOMEM; break; } fwb->start_hi = bindreq->start.hi; fwb->start_lo = bindreq->start.lo; fwb->addrlen = bindreq->len; xfer = fw_xfer_alloc(); if(xfer == NULL){ err = ENOMEM; return err; } xfer->act_type = FWACT_CH; xfer->sub = sub; xfer->fc = sc->fc; fwb->xfer = xfer; err = fw_bindadd(sc->fc, fwb); break; case FW_GDEVLST: i = 0; for(fwdev = TAILQ_FIRST(&sc->fc->devices); fwdev != NULL; fwdev = TAILQ_NEXT(fwdev, link)){ if(i < fwdevlst->n){ fwdevlst->dst[i] = fwdev->dst; fwdevlst->status[i] = (fwdev->status == FWDEVATTACHED)?1:0; fwdevlst->eui[i].hi = fwdev->eui.hi; fwdevlst->eui[i].lo = fwdev->eui.lo; } i++; } fwdevlst->n = i; break; case FW_GTPMAP: bcopy(sc->fc->topology_map, data, (sc->fc->topology_map->crc_len + 1) * 4); break; case FW_GSPMAP: /* speed_map is larger than a page */ err = copyout(sc->fc->speed_map, *(void **)data, (sc->fc->speed_map->crc_len + 1) * 4); break; case FW_GCROM: for (fwdev = TAILQ_FIRST(&sc->fc->devices); fwdev != NULL; fwdev = TAILQ_NEXT(fwdev, link)) { if (fwdev->eui.hi == crom_buf->eui.hi && fwdev->eui.lo == crom_buf->eui.lo) break; } if (fwdev == NULL) { err = FWNODE_INVAL; break; } #if 0 if (fwdev->csrrom[0] >> 24 == 1) len = 4; else len = (1 + ((fwdev->csrrom[0] >> 16) & 0xff)) * 4; #else if (fwdev->rommax < CSRROMOFF) len = 0; else len = fwdev->rommax - CSRROMOFF + 4; #endif if (crom_buf->len < len) len = crom_buf->len; else crom_buf->len = len; err = copyout(&fwdev->csrrom[0], crom_buf->ptr, len); break; default: sc->fc->ioctl (dev, cmd, data, flag, td); break; } return err; } int fw_poll(dev_t dev, int events, fw_proc *td) { int revents; int tmp; int unit = DEV2UNIT(dev); int sub = DEV2DMACH(dev); struct firewire_softc *sc; if (DEV_FWMEM(dev)) return fwmem_poll(dev, events, td); sc = devclass_get_softc(firewire_devclass, unit); revents = 0; tmp = POLLIN | POLLRDNORM; if (events & tmp) { if (STAILQ_FIRST(&sc->fc->ir[sub]->q) != NULL) revents |= tmp; else selrecord(td, &sc->fc->ir[sub]->rsel); } tmp = POLLOUT | POLLWRNORM; if (events & tmp) { /* XXX should be fixed */ revents |= tmp; } return revents; } /* * To lookup node id. from EUI64. */ u_int16_t fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) { struct fw_device *fwdev; for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = TAILQ_NEXT(fwdev, link)){ if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ break; } } if(fwdev == NULL) return FWNODE_INVAL; if(fwdev->status != FWDEVATTACHED) return FWNODE_INVAL; return fwdev->dst; } /* * 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 > 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; #if 0 switch(fp->mode.common.tcode){ case FWTCODE_STREAM: len = ntohs(fp->mode.stream.len) + 4; break; case FWTCODE_RREQQ: case FWTCODE_WRES: case FWTCODE_PHY: len = 12; break; case FWTCODE_WREQQ: case FWTCODE_RRESQ: len = 16; break; default: len = ntohs(fp->mode.rresb.len) + 16; break; } if( len > xfer->send.len ){ printf("len > send.len\n"); return EINVAL; } switch(fp->mode.common.tcode){ case FWTCODE_WREQQ: case FWTCODE_WREQB: case FWTCODE_RREQQ: case FWTCODE_RREQB: case FWTCODE_LREQ: case FWTCODE_PHY: case FWTCODE_STREAM: xferq = fc->atq; break; case FWTCODE_WRES: case FWTCODE_RRESQ: case FWTCODE_RRESB: case FWTCODE_LRES: xferq = fc->ats; break; default: return EINVAL; } #else 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 += ntohs(fp->mode.stream.len); else if (info->flag & FWTI_BLOCK_ASY) len += ntohs(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; #endif if(xferq->start == NULL){ printf("xferq->start == NULL\n"); return EINVAL; } if(!(xferq->queued < xferq->maxq)){ printf("%s:Discard a packet (queued=%d)\n", device_get_nameunit(fc->dev), xferq->queued); return EINVAL; } #if 0 switch(tcode){ case FWTCODE_WREQQ: case FWTCODE_WREQB: case FWTCODE_RREQQ: case FWTCODE_RREQB: case FWTCODE_LREQ: if((tl = fw_get_tlabel(fc, xfer)) == -1 ){ return EIO; } fp->mode.hdr.tlrt = tl << 2; break; default: break; } #else if (info->flag & FWTI_TLABEL) { if((tl = fw_get_tlabel(fc, xfer)) == -1 ) return EIO; fp->mode.hdr.tlrt = tl << 2; } #endif xfer->tl = tl; xfer->tcode = tcode; xfer->resp = 0; xfer->fc = fc; xfer->q = xferq; xfer->act_type = FWACT_XFER; 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){ #if 0 printf("fw_asybusy\n"); #endif #if XFER_TIMEOUT untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); #endif /* xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); */ DELAY(20000); fw_asystart(xfer); return; } #if XFER_TIMEOUT /* * Post timeout for async. request. */ void fw_xfer_timeout(void *arg) { int s; struct fw_xfer *xfer; xfer = (struct fw_xfer *)arg; printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); /* XXX set error code */ s = splfw(); xfer->act.hand(xfer); splx(s); } #endif /* * 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){ 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); #if XFER_TIMEOUT if (xfer->act.hand != NULL) xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); #endif return; } static int fw_mmap (dev_t dev, vm_offset_t offset, int nproto) { struct firewire_softc *fc; int unit = DEV2UNIT(dev); if (DEV_FWMEM(dev)) return fwmem_mmap(dev, offset, nproto); fc = devclass_get_softc(firewire_devclass, unit); return EINVAL; } static int firewire_match( device_t dev ) { device_set_desc(dev, "IEEE1394(Firewire) bus"); return -140; } /* * 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; sc->fc->dev = dev; 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, 0770, "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, 0770, "fwmem%d", device_get_unit(dev)); #if __FreeBSD_version >= 500000 dev_depends(sc->dev, d); #else sc->dev[i] = d; #endif printf("%s: firewire bus attach\n", device_get_nameunit(sc->fc->dev)); sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); /* 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; sc = (struct firewire_softc *)device_get_softc(dev); #if 0 printf("%s:dettach prevented", device_get_nameunit(dev)); return(EINVAL); #endif #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 */ untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); free(sc->fc->topology_map, M_DEVBUF); free(sc->fc->speed_map, M_DEVBUF); bus_generic_detach(dev); return(0); } #if 0 static int firewire_shutdown( device_t dev ) { return 0; } #endif /* * Call ater bus reset. */ void fw_busreset(struct firewire_comm *fc) { int i; struct fw_xfer *xfer; switch(fc->status){ case FWBUSMGRELECT: untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); break; default: break; } fc->status = FWBUSRESET; /* XXX: discard all queued packet */ while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ STAILQ_REMOVE_HEAD(&fc->atq->q, link); xfer->resp = EAGAIN; switch(xfer->act_type){ case FWACT_XFER: fw_xfer_done(xfer); break; default: break; } fw_xfer_free( xfer); } while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ STAILQ_REMOVE_HEAD(&fc->ats->q, link); xfer->resp = EAGAIN; switch(xfer->act_type){ case FWACT_XFER: fw_xfer_done(xfer); default: break; } fw_xfer_free( xfer); } for(i = 0; i < fc->nisodma; i++) while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); xfer->resp = 0; switch(xfer->act_type){ case FWACT_XFER: fw_xfer_done(xfer); break; default: break; } fw_xfer_free( xfer); } 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); } /* Call once after reboot */ void fw_init(fc) struct firewire_comm *fc; { int i; struct fw_xfer *xfer; struct fw_bind *fwb; struct csrdir *csrd; fc->max_asyretry = FW_MAXASYRTY; fc->arq->queued = 0; fc->ars->queued = 0; fc->atq->queued = 0; fc->ats->queued = 0; fc->arq->psize = FWPMAX_S400; fc->ars->psize = FWPMAX_S400; fc->atq->psize = FWPMAX_S400; fc->ats->psize = FWPMAX_S400; fc->arq->buf = NULL; fc->ars->buf = NULL; fc->atq->buf = NULL; fc->ats->buf = NULL; fc->arq->flag = FWXFERQ_PACKET; fc->ars->flag = FWXFERQ_PACKET; fc->atq->flag = FWXFERQ_PACKET; fc->ats->flag = FWXFERQ_PACKET; 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_DEVBUF, M_DONTWAIT | M_ZERO); fc->speed_map = (struct fw_speed_map *)malloc( sizeof(struct fw_speed_map), M_DEVBUF, M_DONTWAIT | 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; TAILQ_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_DEVBUF,M_DONTWAIT); 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 xfer = fw_xfer_alloc(); if(xfer == NULL) return; fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT); if(fwb == NULL){ fw_xfer_free(xfer); } xfer->act.hand = fw_vmaccess; xfer->act_type = FWACT_XFER; xfer->fc = fc; xfer->sc = NULL; fwb->start_hi = 0x2; fwb->start_lo = 0; fwb->addrlen = 0xffffffff; fwb->xfer = xfer; fw_bindadd(fc, fwb); } /* * To lookup binded process from IEEE1394 address. */ static struct fw_bind * fw_bindlookup(fc, dest_hi, dest_lo) struct firewire_comm *fc; u_int32_t dest_lo, dest_hi; { struct fw_bind *tfw; for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; tfw = STAILQ_NEXT(tfw, fclist)){ if(tfw->xfer->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->xfer->act_type == FWACT_CH){ STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); } return err; } /* * To free IEEE1394 address block. */ int fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) { int s; s = splfw(); /* shall we check the existance? */ STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); splx(s); if (fwb->xfer) fw_xfer_free(fwb->xfer); 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_DEVBUF); 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; #if 0 STAILQ_REMOVE(&fc->tlabels[tlabel], tl, tlabel, link); free(tl, M_DEVBUF); #endif splx(s); return(xfer); } } splx(s); return(NULL); } /* * To allocate IEEE1394 XFER structure. */ struct fw_xfer *fw_xfer_alloc() { struct fw_xfer *xfer; #if 0 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT); #else xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT | M_ZERO); #endif if(xfer == NULL) return xfer; #if 0 /* xfer->tl = 0 was missing.. */ xfer->act_type = FWACT_NULL; xfer->fc = NULL; xfer->retry = 0; xfer->resp = 0; xfer->state = FWXF_INIT; xfer->time = time_second; xfer->sub = -1; xfer->send.buf = NULL; xfer->send.off = 0; xfer->send.len = 0; xfer->recv.buf = NULL; xfer->recv.off = 0; xfer->recv.len = 0; xfer->retry_req = NULL; xfer->act.hand = NULL; xfer->sc = NULL; #else xfer->time = time_second; xfer->sub = -1; #endif return xfer; } /* * IEEE1394 XFER post process. */ void fw_xfer_done(struct fw_xfer *xfer) { if (xfer->act.hand == NULL) return; #if XFER_TIMEOUT untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); #endif 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?"); } } /* * To free IEEE1394 XFER structure. */ void fw_xfer_free( 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(xfer->state == FWXF_START){ #if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ printf("fw_xfer_free FWXF_START\n"); #endif s = splfw(); xfer->q->drain(xfer->fc, xfer); splx(s); } } if(xfer->send.buf != NULL){ free(xfer->send.buf, M_DEVBUF); } if(xfer->recv.buf != NULL){ free(xfer->recv.buf, M_DEVBUF); } if(xfer->fc != NULL){ fw_tl_free(xfer->fc, xfer); } free(xfer, M_DEVBUF); } /* * Callback for PHY configuration. */ static void fw_phy_config_callback(struct fw_xfer *xfer) { #if 0 printf("phy_config done state=%d resp=%d\n", xfer->state, xfer->resp); #endif fw_xfer_free(xfer); /* XXX need bus reset ?? */ /* sc->fc->ibr(xfer->fc); LOOP */ } /* * 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; DELAY(100000); xfer = fw_xfer_alloc(); xfer->send.len = 12; xfer->send.off = 0; xfer->fc = fc; xfer->retry_req = fw_asybusy; xfer->act.hand = fw_phy_config_callback; xfer->send.buf = malloc(sizeof(u_int32_t), M_DEVBUF, M_DONTWAIT | M_ZERO); fp = (struct fw_pkt *)xfer->send.buf; fp->mode.ld[1] = 0; if (root_node >= 0) fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); if (gap_count >= 0) fp->mode.ld[1] |= htonl(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; 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) { #if 0 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", FWPHYSIDNODE(sid), FWPHYSIDLINK(sid), FWPHYSIDGAP(sid), FWPHYSIDSPD(sid), FWPHYSIDDEL(sid), FWPHYSIDCON(sid), FWPHYSIDPWR(sid), FWPHYSIDP0(sid), FWPHYSIDP1(sid), FWPHYSIDP2(sid), FWPHYSIDIR(sid), FWPHYSIDMORE(sid)); #else 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 } #endif /* * To receive self ID. */ void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) { u_int32_t *p, *sid = (u_int32_t *)(buf + off); 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 ++; } printf("%s: %d nodes", device_get_nameunit(fc->dev), 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; #if 1 printf(", maxhop <= %d", fc->max_hop); #endif if(fc->irm == -1 ){ printf(", Not found IRM capable node"); }else{ printf(", cable IRM = %d", fc->irm); if (fc->irm == fc->nodeid) printf(" (me)\n"); else printf("\n"); } if((fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f) ){ if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ fc->status = FWBUSMGRDONE; CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); }else{ fc->status = FWBUSMGRELECT; fc->bmrhandle = timeout((timeout_t *)fw_try_bmr,(void *)fc, hz / 8); } }else{ fc->status = FWBUSMGRDONE; printf("%s: BMR = %x\n", device_get_nameunit(fc->dev), CSRARC(fc, BUS_MGR_ID)); } free(buf, M_DEVBUF); #if 1 /* XXX optimize gap_count, if I am BMGR */ if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); } #endif #if 1 timeout((timeout_t *)fw_bus_probe, (void *)fc, hz/4); #else fw_bus_probe(fc); #endif } /* * 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 = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { next = TAILQ_NEXT(fwdev, link); if(fwdev->status != FWDEVINVAL){ fwdev->status = FWDEVINVAL; fwdev->rcnt = 0; }else if(fwdev->rcnt < FW_MAXDEVRCNT){ fwdev->rcnt ++; }else{ TAILQ_REMOVE(&fc->devices, fwdev, link); free(fwdev, M_DEVBUF); } } 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, *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) { printf("fw_bus_explore: 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){ for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = TAILQ_NEXT(fwdev, link)){ if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 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_DEVBUF, M_DONTWAIT); if(fwdev == NULL) return; fwdev->rommax = 0; fwdev->dst = fc->ongonode; fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; fwdev->status = FWDEVINIT; #if 0 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) >> ((3 - (fc->ongonode % 4)) * 8); #else fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; #endif #if 0 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); #else tfwdev = TAILQ_FIRST(&fc->devices); while( tfwdev != NULL && (tfwdev->eui.hi > fwdev->eui.hi) && ((tfwdev->eui.hi == fwdev->eui.hi) && tfwdev->eui.lo > fwdev->eui.lo)){ tfwdev = TAILQ_NEXT( tfwdev, link); } if(tfwdev == NULL){ TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); }else{ TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); } #endif printf("%s:Discover new %s device ID:%08x%08x\n", device_get_nameunit(fc->dev), 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(); if(xfer == NULL){ goto done; } xfer->send.len = 16; xfer->spd = 0; xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); if(xfer->send.buf == NULL){ fw_xfer_free( xfer); return; } xfer->send.off = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.rreqq.dest_hi = htons(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 = htons(xfer->dst); fp->mode.rreqq.dest_lo = htonl(addr); xfer->act.hand = fw_bus_explore_callback; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return; } #endif return; done: /* fw_attach_devs */ fc->status = FWBUSEXPDONE; 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 *xfer; struct fw_pkt *fp; int err; xfer = fw_xfer_alloc(); if(xfer == NULL){ return NULL; } xfer->send.len = 16; xfer->spd = spd; /* XXX:min(spd, fc->spd) */ xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); if(xfer->send.buf == NULL){ fw_xfer_free( xfer); return NULL; } xfer->send.off = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.rreqq.dest_hi = htons(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 = htons(xfer->dst); fp->mode.rreqq.dest_lo = htonl(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) return; fc = xfer->fc; if(xfer->resp != 0){ printf("resp != 0: node=%d addr=0x%x\n", fc->ongonode, fc->ongoaddr); fc->retry_count++; goto nextnode; } if(xfer->send.buf == NULL){ printf("send.buf == NULL: node=%d addr=0x%x\n", fc->ongonode, fc->ongoaddr); printf("send.buf == NULL\n"); fc->retry_count++; goto nextnode; } sfp = (struct fw_pkt *)xfer->send.buf; if(xfer->recv.buf == NULL){ printf("recv.buf == NULL: node=%d addr=0x%x\n", fc->ongonode, fc->ongoaddr); fc->retry_count++; goto nextnode; } 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 ", ntohl(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 == htonl((0xf0000000 | CSRROMOFF))){ rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); chdr = (struct csrhdr *)(&rfp->mode.rresq.data); /* If CSR is minimul confinguration, more investgation is not needed. */ if(chdr->info_len == 1){ goto nextnode; }else{ fc->ongoaddr = CSRROMOFF + 0xc; } }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); fc->ongoaddr = CSRROMOFF + 0x10; }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 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; 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; } /* * Async. write responce support for kernel internal use. */ int fw_writeres(struct firewire_comm *fc, u_int32_t dst, u_int32_t tlrt){ int err = 0; struct fw_xfer *xfer; struct fw_pkt *fp; xfer = fw_xfer_alloc(); if(xfer == NULL){ err = ENOMEM; return err; } xfer->send.len = 12; xfer->spd = 0; xfer->send.buf = malloc(xfer->send.len, M_DEVBUF, M_NOWAIT); if(xfer->send.buf == NULL){ return ENOMEM; } xfer->send.off = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wres.tlrt = tlrt; fp->mode.wres.tcode = FWTCODE_WRES; fp->mode.wres.pri = 0; fp->mode.wres.dst = htons(dst); xfer->act.hand = fw_asy_callback; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return err; } err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0); fw_xfer_free( xfer); return err; } /* * Async. read responce block support for kernel internal use. */ int fw_readresb(struct firewire_comm *fc, u_int32_t dst, u_int32_t tlrt, u_int32_t len, u_int32_t *buf){ int err = 0; struct fw_xfer *xfer ; struct fw_pkt *fp; xfer = fw_xfer_alloc(); if(xfer == NULL){ err = ENOMEM; return err; } xfer->send.len = sizeof(struct fw_pkt) + len; xfer->spd = 0; xfer->send.buf = malloc(sizeof(struct fw_pkt) + 1024, M_DEVBUF, M_DONTWAIT); if(xfer->send.buf == NULL){ return ENOMEM; } xfer->send.off = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.rresb.tlrt = tlrt; fp->mode.rresb.tcode = FWTCODE_RRESB; fp->mode.rresb.pri = 0; fp->mode.rresb.dst = htons(dst); fp->mode.rresb.rtcode = 0; fp->mode.rresb.extcode = 0; fp->mode.rresb.len = htons(len); bcopy(buf, fp->mode.rresb.payload, len); xfer->act.hand = fw_asy_callback; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return err; } err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0); fw_xfer_free( xfer); return err; } /* * Async. write request block support for kernel internal use. */ int fw_writereqb(struct firewire_comm *fc, u_int32_t addr_hi, u_int32_t addr_lo, u_int len, u_int32_t *buf){ int err = 0; struct fw_xfer *xfer ; struct fw_pkt *fp; xfer = fw_xfer_alloc(); if(xfer == NULL){ err = ENOMEM; return err; } xfer->send.len = sizeof(struct fw_pkt) + len; xfer->spd = 0; xfer->send.buf = malloc(sizeof(struct fw_pkt) + 1024, M_DEVBUF, M_DONTWAIT); if(xfer->send.buf == NULL){ return ENOMEM; } xfer->send.off = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.wreqb.dest_hi = htonl(addr_hi & 0xffff); fp->mode.wreqb.tlrt = 0; fp->mode.wreqb.tcode = FWTCODE_WREQB; fp->mode.wreqb.pri = 0; fp->mode.wreqb.dst = htons(addr_hi >> 16); fp->mode.wreqb.dest_lo = htonl(addr_lo); fp->mode.wreqb.len = htons(len); fp->mode.wreqb.extcode = 0; bcopy(buf, fp->mode.wreqb.payload, len); xfer->act.hand = fw_asy_callback; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return err; } err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0); fw_xfer_free( xfer); return err; } /* * Async. read request support for kernel internal use. */ int fw_readreqq(struct firewire_comm *fc, u_int32_t addr_hi, u_int32_t addr_lo, u_int32_t *ret){ int err = 0; struct fw_xfer *xfer ; struct fw_pkt *fp, *rfp; xfer = fw_xfer_alloc(); if(xfer == NULL){ err = ENOMEM; return err; } xfer->send.len = 16; xfer->spd = 0; xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); if(xfer->send.buf == NULL){ return ENOMEM; } xfer->send.off = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.rreqq.dest_hi = htonl(addr_hi & 0xffff); fp->mode.rreqq.tlrt = 0; fp->mode.rreqq.tcode = FWTCODE_RREQQ; fp->mode.rreqq.pri = 0; xfer->dst = addr_hi >> 16; fp->mode.rreqq.dst = htons(xfer->dst); fp->mode.rreqq.dest_lo = htonl(addr_lo); xfer->act.hand = fw_asy_callback; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return err; } err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0); if(err == 0 && xfer->recv.buf != NULL){ rfp = (struct fw_pkt *)xfer->recv.buf; *ret = ntohl(rfp->mode.rresq.data); } fw_xfer_free( xfer); return err; } /* * To obtain CSR register values. */ u_int32_t getcsrdata(struct fw_device *fwdev, u_int8_t key) { int i; struct csrhdr *chdr; struct csrreg *creg; chdr = (struct csrhdr *)&fwdev->csrrom[0]; for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ creg = (struct csrreg *)&fwdev->csrrom[i/4]; if(creg->key == key){ return (u_int32_t)creg->val; } } return 0; } /* * 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; for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = TAILQ_NEXT(fwdev, link)){ if(fwdev->status == FWDEVINIT){ fwdev->spec = getcsrdata(fwdev, CSRKEY_SPEC); if(fwdev->spec == 0) continue; fwdev->ver = getcsrdata(fwdev, CSRKEY_VER); if(fwdev->ver == 0) continue; fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; switch(fwdev->spec){ case CSRVAL_ANSIT10: switch(fwdev->ver){ case CSRVAL_T10SBP2: printf("Device SBP-II"); break; default: break; } break; case CSRVAL_1394TA: switch(fwdev->ver){ case CSR_PROTAVC: printf("Device AV/C"); break; case CSR_PROTCAL: printf("Device CAL"); break; case CSR_PROTEHS: printf("Device EHS"); break; case CSR_PROTHAVI: printf("Device HAVi"); break; case CSR_PROTCAM104: printf("Device 1394 Cam 1.04"); break; case CSR_PROTCAM120: printf("Device 1394 Cam 1.20"); break; case CSR_PROTCAM130: printf("Device 1394 Cam 1.30"); break; case CSR_PROTDPP: printf("Device 1394 Direct print"); break; case CSR_PROTIICP: printf("Device Industrial & Instrument"); break; default: printf("Device unkwon 1394TA"); break; } break; default: break; } fwdev->status = FWDEVATTACHED; printf("\n"); } } err = device_get_children(fc->dev, &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("retry_count = %d\n", fc->retry_count); fc->retry_probe_handle = timeout((timeout_t *)fc->ibr, (void *)fc, hz*2); } 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_DEVBUF,M_DONTWAIT); if (tl == NULL) { splx(s); return (-1); } tl->xfer = xfer; STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); splx(s); return(label); } } splx(s); printf("fw_get_tlabel: no free tlabel\n"); return(-1); } /* * Generic packet receving process. */ void fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) { struct fw_pkt *fp, *resfp; struct fw_xfer *xfer; struct fw_bind *bind; struct firewire_softc *sc; int s; #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 *)(buf + off); switch(fp->mode.common.tcode){ case FWTCODE_WRES: case FWTCODE_RRESQ: case FWTCODE_RRESB: case FWTCODE_LRES: xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), fp->mode.hdr.tlrt >> 2); if(xfer == NULL) { printf("fw_rcv: unknown response " "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", fp->mode.common.tcode, ntohs(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, ntohs(fp->mode.hdr.src), (fp->mode.hdr.tlrt >> 2)^3); if (xfer == NULL) { printf("no use...\n"); goto err; } #else goto err; #endif } switch(xfer->act_type){ case FWACT_XFER: if((xfer->sub >= 0) && ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ xfer->resp = EINVAL; fw_xfer_done(xfer); goto err; } xfer->recv.len = len; xfer->recv.off = off; xfer->recv.buf = buf; xfer->resp = 0; fw_xfer_done(xfer); return; break; case FWACT_CH: default: goto err; break; } break; case FWTCODE_WREQQ: case FWTCODE_WREQB: case FWTCODE_RREQQ: case FWTCODE_RREQB: case FWTCODE_LREQ: bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), ntohl(fp->mode.rreqq.dest_lo)); if(bind == NULL){ printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", ntohs(fp->mode.rreqq.dest_hi), ntohl(fp->mode.rreqq.dest_lo), fp->mode.common.tcode); if (fc->status == FWBUSRESET) { printf("fw_rcv: cannot response(bus reset)!\n"); goto err; } xfer = fw_xfer_alloc(); if(xfer == NULL){ return; } xfer->spd = spd; xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); resfp = (struct fw_pkt *)xfer->send.buf; switch(fp->mode.common.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; } switch(bind->xfer->act_type){ case FWACT_XFER: xfer = fw_xfer_alloc(); if(xfer == NULL) goto err; xfer->fc = bind->xfer->fc; xfer->sc = bind->xfer->sc; xfer->recv.buf = buf; xfer->recv.len = len; xfer->recv.off = off; xfer->spd = spd; xfer->act.hand = bind->xfer->act.hand; 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->xfer->sub]->queued >= fc->ir[bind->xfer->sub]->maxq){ printf("%s:Discard a packet %x %d\n", device_get_nameunit(fc->dev), bind->xfer->sub, fc->ir[bind->xfer->sub]->queued); goto err; } xfer = fw_xfer_alloc(); if(xfer == NULL) goto err; xfer->recv.buf = buf; xfer->recv.len = len; xfer->recv.off = off; xfer->spd = spd; s = splfw(); fc->ir[bind->xfer->sub]->queued++; STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); splx(s); wakeup((caddr_t)fc->ir[bind->xfer->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; } xfer = fw_xfer_alloc(); if(xfer == NULL) goto err; xfer->recv.buf = buf; xfer->recv.len = len; xfer->recv.off = off; 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\n"); break; } err: free(buf, M_DEVBUF); } /* * Post process for Bus Manager election process. */ static void fw_try_bmr_callback(struct fw_xfer *xfer) { struct fw_pkt *sfp,*rfp; struct firewire_comm *fc; if(xfer == NULL) return; fc = xfer->fc; if(xfer->resp != 0){ goto error; } if(xfer->send.buf == NULL){ goto error; } sfp = (struct fw_pkt *)xfer->send.buf; if(xfer->recv.buf == NULL){ goto error; } rfp = (struct fw_pkt *)xfer->recv.buf; CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, ntohl(rfp->mode.lres.payload[0]) & 0x3f); printf("%s: new bus manager %d ", device_get_nameunit(fc->dev), CSRARC(fc, BUS_MGR_ID)); if((htonl(rfp->mode.lres.payload[0]) & 0x3f) == fc->nodeid){ printf("(me)\n"); /* If I am bus manager, optimize gapcount */ if(fc->max_hop <= MAX_GAPHOP ){ fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); } }else{ printf("\n"); } error: fw_xfer_free(xfer); } /* * To candidate Bus Manager election process. */ 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(); if(xfer == NULL){ return; } xfer->send.len = 24; xfer->spd = 0; xfer->send.buf = malloc(24, M_DEVBUF, M_DONTWAIT); if(xfer->send.buf == NULL){ fw_xfer_free( xfer); return; } fc->status = FWBUSMGRELECT; xfer->send.off = 0; fp = (struct fw_pkt *)xfer->send.buf; fp->mode.lreq.dest_hi = htons(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 = htons(8); fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); xfer->dst = FWLOCALBUS | fc->irm; fp->mode.lreq.dst = htons(xfer->dst); fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); fp->mode.lreq.payload[0] = 0x3f; fp->mode.lreq.payload[1] = fc->nodeid; xfer->act_type = FWACT_XFER; xfer->act.hand = fw_try_bmr_callback; err = fw_asyreq(fc, -1, xfer); if(err){ fw_xfer_free( xfer); return; } return; } /* * 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 + xfer->recv.off); printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", xfer->spd, xfer->recv.len, xfer->recv.off, 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_DEVBUF, 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_DEVBUF, 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_DEVBUF, 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_DEVBUF, 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; } xfer->send.off = 0; 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; } /* * 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); } DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); MODULE_VERSION(firewire, 1);