/* * Copyright (c) 1997, 1998, 1999 * Bill Paul . 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 following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``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 Bill Paul OR THE VOICES IN HIS HEAD * 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. * * $FreeBSD$ */ /* * This is a PCI shim for the Aironet PC4500/4800 wireless network * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices, * which all have basically the same interface. The ISA and PCI cards * are actually bridge adapters with PCMCIA cards inserted into them, * however they appear as normal PCI or ISA devices to the host. * * All we do here is handle the PCI probe and attach and set up an * interrupt handler entry point. The PCI version of the card uses * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with * multiple PCI address space mappings. The primary mapping at PCI * register 0x14 is for the PLX chip itself, *NOT* the Aironet card. * The I/O address of the Aironet is actually at register 0x18, which * is the local bus mapping register for bus space 0. There are also * registers for additional register spaces at registers 0x1C and * 0x20, but these are unused in the Aironet devices. To find out * more, you need a datasheet for the 9050 from PLX, but you have * to go through their sales office to get it. Bleh. */ #include "opt_inet.h" #ifdef INET #define ANCACHE #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef lint static const char rcsid[] = "$FreeBSD$"; #endif #include #include struct an_type { u_int16_t an_vid; u_int16_t an_did; char *an_name; }; #define AIRONET_VENDORID 0x14B9 #define AIRONET_DEVICEID_4500 0x4500 #define AIRONET_DEVICEID_4800 0x4800 #define AIRONET_DEVICEID_4xxx 0x0001 #define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */ #define AN_PCI_LOIO 0x18 /* Aironet iobase */ static struct an_type an_devs[] = { { AIRONET_VENDORID, AIRONET_DEVICEID_4500, "Aironet PCI4500" }, { AIRONET_VENDORID, AIRONET_DEVICEID_4800, "Aironet PCI4800" }, { AIRONET_VENDORID, AIRONET_DEVICEID_4xxx, "Aironet PCI4500/PCI4800" }, { 0, 0, NULL } }; static int an_probe_pci __P((device_t)); static int an_attach_pci __P((device_t)); static int an_detach_pci __P((device_t)); static int an_probe_pci(device_t dev) { struct an_type *t; t = an_devs; while(t->an_name != NULL) { if (pci_get_vendor(dev) == t->an_vid && pci_get_device(dev) == t->an_did) { device_set_desc(dev, t->an_name); return(0); } t++; } return(ENXIO); } static int an_attach_pci(dev) device_t dev; { int s; u_int32_t command; struct an_softc *sc; int unit, flags, error = 0; s = splimp(); sc = device_get_softc(dev); unit = device_get_unit(dev); flags = device_get_flags(dev); bzero(sc, sizeof(struct an_softc)); /* * Map control/status registers. */ command = pci_read_config(dev, PCIR_COMMAND, 4); command |= PCIM_CMD_PORTEN; pci_write_config(dev, PCIR_COMMAND, command, 4); command = pci_read_config(dev, PCIR_COMMAND, 4); if (!(command & PCIM_CMD_PORTEN)) { printf("an%d: failed to enable I/O ports!\n", unit); error = ENXIO; goto fail; } sc->port_rid = AN_PCI_LOIO; error = an_alloc_port(dev, sc->port_rid, 1); if (error) { printf("an%d: couldn't map ports\n", unit); goto fail; } sc->an_btag = rman_get_bustag(sc->port_res); sc->an_bhandle = rman_get_bushandle(sc->port_res); /* Allocate interrupt */ error = an_alloc_irq(dev, 0, RF_SHAREABLE); if (error) { an_release_resources(dev); goto fail; } error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, an_intr, sc, &sc->irq_handle); if (error) { an_release_resources(dev); goto fail; } error = an_attach(sc, device_get_unit(dev), flags); fail: splx(s); return(error); } static int an_detach_pci(device_t dev) { struct an_softc *sc = device_get_softc(dev); struct ifnet *ifp = &sc->arpcom.ac_if; an_stop(sc); ether_ifdetach(ifp, ETHER_BPF_SUPPORTED); bus_teardown_intr(dev, sc->irq_res, sc->irq_handle); an_release_resources(dev); return (0); } static device_method_t an_pci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, an_probe_pci), DEVMETHOD(device_attach, an_attach_pci), DEVMETHOD(device_detach, an_detach_pci), DEVMETHOD(device_shutdown, an_shutdown), { 0, 0 } }; static driver_t an_pci_driver = { "an", an_pci_methods, sizeof(struct an_softc), }; static devclass_t an_devclass; DRIVER_MODULE(if_an, pci, an_pci_driver, an_devclass, 0, 0);