static int fwohci_pci_detach(device_t self) { fwohci_softc_t *sc = device_get_softc(self); int s; s = splfw(); if (sc->bsr) fwohci_stop(sc, self); bus_generic_detach(self); if (sc->fc.bdev) { device_delete_child(self, sc->fc.bdev); sc->fc.bdev = NULL; } /* disable interrupts that might have been switched on */ if (sc->bst && sc->bsh) bus_space_write_4(sc->bst, sc->bsh, FWOHCI_INTMASKCLR, OHCI_INT_EN); if (sc->irq_res) { int err; if (sc->ih) { err = bus_teardown_intr(self, sc->irq_res, sc->ih); if (err) device_printf(self, "Could not tear down irq, %d\n", err); #if defined(__DragonFly__) || __FreeBSD_version < 500000 bus_teardown_intr(self, sc->irq_res, sc->ih_cam); bus_teardown_intr(self, sc->irq_res, sc->ih_bio); #endif sc->ih = NULL; } bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res); sc->irq_res = NULL; } if (sc->bsr) { bus_release_resource(self, SYS_RES_MEMORY,PCI_CBMEM,sc->bsr); sc->bsr = NULL; sc->bst = 0; sc->bsh = 0; } fwohci_detach(sc, self); mtx_destroy(FW_GMTX(&sc->fc)); splx(s); return 0; }
static int fw_read_async(struct fw_drv1 *d, struct uio *uio, int ioflag) { int err = 0, s; struct fw_xfer *xfer; struct fw_bind *fwb; struct fw_pkt *fp; struct tcode_info *tinfo; FW_GLOCK(d->fc); while ((xfer = STAILQ_FIRST(&d->rq)) == NULL && err == 0) err = msleep(&d->rq, FW_GMTX(d->fc), FWPRI, "fwra", 0); if (err != 0) { FW_GUNLOCK(d->fc); return (err); } s = splfw(); STAILQ_REMOVE_HEAD(&d->rq, link); FW_GUNLOCK(xfer->fc); splx(s); fp = &xfer->recv.hdr; #if 0 /* for GASP ?? */ if (fc->irx_post != NULL) fc->irx_post(fc, fp->mode.ld); #endif tinfo = &xfer->fc->tcode[fp->mode.hdr.tcode]; err = uiomove(fp, tinfo->hdr_len, uio); if (err) goto out; err = uiomove(xfer->recv.payload, xfer->recv.pay_len, uio); out: /* recycle this xfer */ fwb = (struct fw_bind *)xfer->sc; fw_xfer_unload(xfer); xfer->recv.pay_len = PAGE_SIZE; FW_GLOCK(xfer->fc); STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link); FW_GUNLOCK(xfer->fc); return (err); }
static device_t fwohci_pci_add_child(device_t dev, u_int order, const char *name, int unit) { struct fwohci_softc *sc; device_t child; int err = 0; sc = (struct fwohci_softc *)device_get_softc(dev); child = device_add_child(dev, name, unit); if (child == NULL) return (child); sc->fc.bdev = child; device_set_ivars(child, (void *)&sc->fc); err = device_probe_and_attach(child); if (err) { device_printf(dev, "probe_and_attach failed with err=%d\n", err); fwohci_pci_detach(dev); device_delete_child(dev, child); return NULL; } /* XXX * Clear the bus reset event flag to start transactions even when * interrupt is disabled during the boot process. */ if (cold) { int s; DELAY(250); /* 2 cycles */ s = splfw(); fwohci_poll((void *)sc, 0, -1); splx(s); } return (child); }
void fwmem_strategy(struct bio *bp) { struct fwmem_softc *fms; struct fw_device *fwdev; struct fw_xfer *xfer; struct cdev *dev; int err=0, s, iolen; dev = bp->bio_dev; /* XXX check request length */ s = splfw(); fms = (struct fwmem_softc *)dev->si_drv1; fwdev = fw_noderesolve_eui64(fms->sc->fc, &fms->eui); if (fwdev == NULL) { if (fwmem_debug) printf("fwmem: no such device ID:%08x%08x\n", fms->eui.hi, fms->eui.lo); err = EINVAL; goto error; } iolen = MIN(bp->bio_bcount, MAXLEN); if ((bp->bio_cmd & BIO_READ) == BIO_READ) { if (iolen == 4 && (bp->bio_offset & 3) == 0) xfer = fwmem_read_quad(fwdev, (void *) bp, fwmem_speed, bp->bio_offset >> 32, bp->bio_offset & 0xffffffff, bp->bio_data, fwmem_biodone); else xfer = fwmem_read_block(fwdev, (void *) bp, fwmem_speed, bp->bio_offset >> 32, bp->bio_offset & 0xffffffff, iolen, bp->bio_data, fwmem_biodone); } else {
static int fw_write(struct cdev *dev, struct uio *uio, int ioflag) { int err = 0; int s, slept = 0; struct fw_drv1 *d; struct fw_pkt *fp; struct firewire_comm *fc; struct fw_xferq *it; if (DEV_FWMEM(dev)) return (physio(dev, uio, ioflag)); d = dev->si_drv1; fc = d->fc; it = d->it; if (it == NULL) return (fw_write_async(d, uio, ioflag)); if (it->buf == NULL) return (EIO); FW_GLOCK(fc); 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; #if 0 /* XXX to avoid lock recursion */ err = fc->itx_enable(fc, it->dmach); if (err) goto out; #endif err = msleep(it, FW_GMTX(fc), FWPRI, "fw_write", hz); if (err) goto out; goto isoloop; } else { err = EIO; goto out; } } FW_GUNLOCK(fc); fp = (struct fw_pkt *)fwdma_v_addr(it->buf, it->stproc->poffset + it->queued); err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio); err = uiomove((caddr_t)fp->mode.stream.payload, fp->mode.stream.len, uio); it->queued++; if (it->queued >= it->bnpacket) { s = splfw(); STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); splx(s); it->stproc = NULL; err = fc->itx_enable(fc, it->dmach); } if (uio->uio_resid >= sizeof(struct fw_isohdr)) { slept = 0; FW_GLOCK(fc); goto isoloop; } return err; out: FW_GUNLOCK(fc); return err; }
/* * read request. */ static int fw_read(struct cdev *dev, struct uio *uio, int ioflag) { struct fw_drv1 *d; struct fw_xferq *ir; struct firewire_comm *fc; int err = 0, s, slept = 0; struct fw_pkt *fp; if (DEV_FWMEM(dev)) return (physio(dev, uio, ioflag)); d = dev->si_drv1; fc = d->fc; ir = d->ir; if (ir == NULL) return (fw_read_async(d, uio, ioflag)); if (ir->buf == NULL) return (EIO); FW_GLOCK(fc); readloop: if (ir->stproc == NULL) { /* iso bulkxfer */ ir->stproc = STAILQ_FIRST(&ir->stvalid); if (ir->stproc != NULL) { s = splfw(); STAILQ_REMOVE_HEAD(&ir->stvalid, link); splx(s); ir->queued = 0; } } if (ir->stproc == NULL) { /* no data avaliable */ if (slept == 0) { slept = 1; ir->flag |= FWXFERQ_WAKEUP; err = msleep(ir, FW_GMTX(fc), FWPRI, "fw_read", hz); ir->flag &= ~FWXFERQ_WAKEUP; if (err == 0) goto readloop; } else if (slept == 1) err = EIO; FW_GUNLOCK(fc); return err; } else if (ir->stproc != NULL) { /* iso bulkxfer */ FW_GUNLOCK(fc); fp = (struct fw_pkt *)fwdma_v_addr(ir->buf, ir->stproc->poffset + ir->queued); if (fc->irx_post != NULL) fc->irx_post(fc, fp->mode.ld); if (fp->mode.stream.len == 0) { err = EIO; return err; } err = uiomove((caddr_t)fp, fp->mode.stream.len + sizeof(uint32_t), uio); ir->queued++; if (ir->queued >= ir->bnpacket) { s = splfw(); STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link); splx(s); fc->irx_enable(fc, ir->dmach); ir->stproc = NULL; } if (uio->uio_resid >= ir->psize) { slept = -1; FW_GLOCK(fc); goto readloop; } } return err; }