/*- * Copyright (c) 1994-2000 * Paul Richards. 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, * verbatim and that no modifications are made prior to this * point in the file. * 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. The name Paul Richards may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``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 PAUL RICHARDS 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. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define AMD_VENDOR_ID 0x1022 #define PCI_DEVICE_ID_PCNet_PCI 0x2000 #define PCI_DEVICE_ID_PCHome_PCI 0x2001 static int lnc_pci_probe(device_t dev) { if (pci_get_vendor(dev) != AMD_VENDOR_ID) return (ENXIO); switch(pci_get_device(dev)) { case PCI_DEVICE_ID_PCNet_PCI: device_set_desc(dev, "PCNet/PCI Ethernet adapter"); return(BUS_PROBE_DEFAULT); break; case PCI_DEVICE_ID_PCHome_PCI: device_set_desc(dev, "PCHome/PCI Ethernet adapter"); return(BUS_PROBE_DEFAULT); break; default: return (ENXIO); break; } return (ENXIO); } static void lnc_alloc_callback(void *arg, bus_dma_segment_t *seg, int nseg, int error) { /* Do nothing */ return; } static int lnc_pci_attach(device_t dev) { lnc_softc_t *sc = device_get_softc(dev); unsigned command; int err = 0; bus_size_t lnc_mem_size; device_printf(dev, "Attaching %s\n", device_get_desc(dev)); command = pci_read_config(dev, PCIR_COMMAND, 4); command |= PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN; pci_write_config(dev, PCIR_COMMAND, command, 4); sc->portrid = PCIR_BAR(0); sc->portres = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->portrid, RF_ACTIVE); if (! sc->portres) { device_printf(dev, "Cannot allocate I/O ports\n"); lnc_release_resources(dev); return (ENXIO); } sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqrid, RF_ACTIVE|RF_SHAREABLE); if (! sc->irqres) { device_printf(dev, "Cannot allocate irq\n"); lnc_release_resources(dev); return (ENXIO); } err = bus_setup_intr(dev, sc->irqres, INTR_TYPE_NET, lncintr, sc, &sc->intrhand); if (err) { device_printf(dev, "Cannot setup irq handler\n"); lnc_release_resources(dev); return (ENXIO); } sc->lnc_btag = rman_get_bustag(sc->portres); sc->lnc_bhandle = rman_get_bushandle(sc->portres); /* XXX temp setting for nic */ sc->nic.ic = PCnet_PCI; sc->nic.ident = NE2100; sc->nic.mem_mode = DMA_FIXED; sc->nrdre = NRDRE; sc->ntdre = NTDRE; sc->rap = PCNET_RAP; sc->rdp = PCNET_RDP; sc->bdp = PCNET_BDP; /* Create a DMA tag describing the ring memory we need */ lnc_mem_size = ((NDESC(sc->nrdre) + NDESC(sc->ntdre)) * sizeof(struct host_ring_entry)); lnc_mem_size += sizeof(struct init_block) + (sizeof(struct mds) * (NDESC(sc->nrdre) + NDESC(sc->ntdre))) + MEM_SLEW; lnc_mem_size += (NDESC(sc->nrdre) * RECVBUFSIZE) + (NDESC(sc->ntdre) * TRANSBUFSIZE); err = bus_dma_tag_create(NULL, /* parent */ 1, /* alignement */ 0, /* boundary */ BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ lnc_mem_size, /* segsize */ 1, /* nsegments */ BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 0, /* flags */ busdma_lock_mutex, /* lockfunc */ &Giant, /* lockarg */ &sc->dmat); if (err) { device_printf(dev, "Can't create DMA tag\n"); lnc_release_resources(dev); return (ENOMEM); } err = bus_dmamem_alloc(sc->dmat, (void **)&sc->recv_ring, BUS_DMA_NOWAIT, &sc->dmamap); if (err) { device_printf(dev, "Couldn't allocate memory\n"); lnc_release_resources(dev); return (ENOMEM); } bus_dmamap_load(sc->dmat, sc->dmamap, sc->recv_ring, lnc_mem_size, lnc_alloc_callback, sc->recv_ring, BUS_DMA_NOWAIT); /* Call generic attach code */ if (! lnc_attach_common(dev)) { device_printf(dev, "Generic attach code failed\n"); lnc_release_resources(dev); return (ENXIO); } return (0); } static int lnc_pci_detach(device_t dev) { lnc_softc_t *sc = device_get_softc(dev); int s = splimp(); ether_ifdetach(&sc->arpcom.ac_if); lnc_stop(sc); bus_teardown_intr(dev, sc->irqres, sc->intrhand); bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irqres); bus_release_resource(dev, SYS_RES_IOPORT, PCIR_BAR(0), sc->portres); bus_dmamap_unload(sc->dmat, sc->dmamap); bus_dmamem_free(sc->dmat, sc->recv_ring, sc->dmamap); bus_dma_tag_destroy(sc->dmat); splx(s); return (0); } static device_method_t lnc_pci_methods[] = { DEVMETHOD(device_probe, lnc_pci_probe), DEVMETHOD(device_attach, lnc_pci_attach), DEVMETHOD(device_detach, lnc_pci_detach), #ifdef notyet DEVMETHOD(device_suspend, lnc_pci_suspend), DEVMETHOD(device_resume, lnc_pci_resume), DEVMETHOD(device_shutdown, lnc_pci_shutdown), #endif { 0, 0 } }; static driver_t lnc_pci_driver = { "lnc", lnc_pci_methods, sizeof(struct lnc_softc), }; DRIVER_MODULE(lnc, pci, lnc_pci_driver, lnc_devclass, 0, 0); MODULE_DEPEND(lnc, pci, 1, 1, 1); MODULE_DEPEND(lnc, ether, 1, 1, 1);