Current Path : /sys/dev/an/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/an/if_an_pci.c |
/*- * Copyright (c) 1997, 1998, 1999 * Bill Paul <wpaul@ctr.columbia.edu>. 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. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/an/if_an_pci.c 233024 2012-03-16 08:46:58Z scottl $"); /* * 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 <sys/param.h> #include <sys/systm.h> #include <sys/sockio.h> #include <sys/mbuf.h> #include <sys/kernel.h> #include <sys/socket.h> #include <sys/module.h> #include <sys/bus.h> #include <machine/bus.h> #include <sys/rman.h> #include <sys/lock.h> #include <sys/mutex.h> #include <machine/resource.h> #include <net/if.h> #include <net/if_arp.h> #include <net/ethernet.h> #include <net/if_dl.h> #include <net/if_media.h> #include <dev/pci/pcireg.h> #include <dev/pci/pcivar.h> #include <dev/an/if_aironet_ieee.h> #include <dev/an/if_anreg.h> struct an_type { u_int16_t an_vid; u_int16_t an_did; char *an_name; }; #define AIRONET_VENDORID 0x14B9 #define AIRONET_DEVICEID_35x 0x0350 #define AIRONET_DEVICEID_4500 0x4500 #define AIRONET_DEVICEID_4800 0x4800 #define AIRONET_DEVICEID_4xxx 0x0001 #define AIRONET_DEVICEID_MPI350 0xA504 #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_35x, "Cisco Aironet 350 Series" }, { AIRONET_VENDORID, AIRONET_DEVICEID_MPI350, "Cisco Aironet MPI350" }, { 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 (device_t); static int an_attach_pci (device_t); static int an_suspend_pci (device_t); static int an_resume_pci (device_t); static int an_probe_pci(device_t dev) { struct an_type *t; struct an_softc *sc = device_get_softc(dev); bzero(sc, sizeof(struct an_softc)); 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); an_pci_probe(dev); return(BUS_PROBE_DEFAULT); } t++; } return(ENXIO); } static int an_attach_pci(dev) device_t dev; { u_int32_t command; struct an_softc *sc; int flags, error = 0; sc = device_get_softc(dev); flags = device_get_flags(dev); if (pci_get_vendor(dev) == AIRONET_VENDORID && pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { sc->mpi350 = 1; sc->port_rid = PCIR_BAR(0); } else { /* * 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)) { device_printf(dev, "failed to enable I/O ports!\n"); error = ENXIO; goto fail; } sc->port_rid = AN_PCI_LOIO; } error = an_alloc_port(dev, sc->port_rid, 1); if (error) { device_printf(dev, "couldn't map ports\n"); goto fail; } /* Allocate memory for MPI350 */ if (sc->mpi350) { /* Allocate memory */ sc->mem_rid = PCIR_BAR(1); error = an_alloc_memory(dev, sc->mem_rid, 1); if (error) { device_printf(dev, "couldn't map memory\n"); goto fail; } /* Allocate aux. memory */ sc->mem_aux_rid = PCIR_BAR(2); error = an_alloc_aux_memory(dev, sc->mem_aux_rid, AN_AUX_MEM_SIZE); if (error) { device_printf(dev, "couldn't map aux memory\n"); goto fail; } /* Allocate DMA region */ error = bus_dma_tag_create(bus_get_dma_tag(dev),/* parent */ 1, 0, /* alignment, bounds */ BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ 0x3ffff, /* maxsize XXX */ 1, /* nsegments */ 0xffff, /* maxsegsize XXX */ BUS_DMA_ALLOCNOW, /* flags */ NULL, /* lockfunc */ NULL, /* lockarg */ &sc->an_dtag); if (error) { device_printf(dev, "couldn't get DMA region\n"); goto fail; } } /* Allocate interrupt */ error = an_alloc_irq(dev, 0, RF_SHAREABLE); if (error) { device_printf(dev, "couldn't get interrupt\n"); goto fail; } sc->an_dev = dev; error = an_attach(sc, flags); if (error) { device_printf(dev, "couldn't attach\n"); goto fail; } /* * Must setup the interrupt after the an_attach to prevent racing. */ error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, NULL, an_intr, sc, &sc->irq_handle); if (error) device_printf(dev, "couldn't setup interrupt\n"); fail: if (error) an_release_resources(dev); return(error); } static int an_suspend_pci(device_t dev) { an_shutdown(dev); return (0); } static int an_resume_pci(device_t dev) { an_resume(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), DEVMETHOD(device_shutdown, an_shutdown), DEVMETHOD(device_suspend, an_suspend_pci), DEVMETHOD(device_resume, an_resume_pci), { 0, 0 } }; static driver_t an_pci_driver = { "an", an_pci_methods, sizeof(struct an_softc), }; static devclass_t an_devclass; DRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0); MODULE_DEPEND(an, pci, 1, 1, 1); MODULE_DEPEND(an, wlan, 1, 1, 1);