if_an_pci.c revision 123978
1284184Sdim/*- 2284184Sdim * Copyright (c) 1997, 1998, 1999 3284184Sdim * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4284184Sdim * 5284184Sdim * Redistribution and use in source and binary forms, with or without 6284184Sdim * modification, are permitted provided that the following conditions 7284184Sdim * are met: 8284184Sdim * 1. Redistributions of source code must retain the above copyright 9284184Sdim * notice, this list of conditions and the following disclaimer. 10284184Sdim * 2. Redistributions in binary form must reproduce the above copyright 11284184Sdim * notice, this list of conditions and the following disclaimer in the 12284184Sdim * documentation and/or other materials provided with the distribution. 13284184Sdim * 3. All advertising materials mentioning features or use of this software 14284184Sdim * must display the following acknowledgement: 15284184Sdim * This product includes software developed by Bill Paul. 16284184Sdim * 4. Neither the name of the author nor the names of any co-contributors 17284184Sdim * may be used to endorse or promote products derived from this software 18284184Sdim * without specific prior written permission. 19284184Sdim * 20284184Sdim * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21284184Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22284184Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23284184Sdim * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24284184Sdim * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25284184Sdim * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26284184Sdim * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27284184Sdim * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28284184Sdim * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29284184Sdim * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30284184Sdim * THE POSSIBILITY OF SUCH DAMAGE. 31284184Sdim */ 32284184Sdim 33296417Sdim#include <sys/cdefs.h> 34284184Sdim__FBSDID("$FreeBSD: head/sys/dev/an/if_an_pci.c 123978 2003-12-30 01:07:12Z ambrisko $"); 35284184Sdim 36284184Sdim/* 37284184Sdim * This is a PCI shim for the Aironet PC4500/4800 wireless network 38284184Sdim * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices, 39284184Sdim * which all have basically the same interface. The ISA and PCI cards 40284184Sdim * are actually bridge adapters with PCMCIA cards inserted into them, 41296417Sdim * however they appear as normal PCI or ISA devices to the host. 42284184Sdim * 43284184Sdim * All we do here is handle the PCI probe and attach and set up an 44284184Sdim * interrupt handler entry point. The PCI version of the card uses 45284184Sdim * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with 46284184Sdim * multiple PCI address space mappings. The primary mapping at PCI 47284184Sdim * register 0x14 is for the PLX chip itself, *NOT* the Aironet card. 48284184Sdim * The I/O address of the Aironet is actually at register 0x18, which 49284184Sdim * is the local bus mapping register for bus space 0. There are also 50284184Sdim * registers for additional register spaces at registers 0x1C and 51284184Sdim * 0x20, but these are unused in the Aironet devices. To find out 52284184Sdim * more, you need a datasheet for the 9050 from PLX, but you have 53284184Sdim * to go through their sales office to get it. Bleh. 54284184Sdim */ 55284734Sdim 56284734Sdim#include "opt_inet.h" 57284734Sdim 58284734Sdim#ifdef INET 59284734Sdim#define ANCACHE 60284184Sdim#endif 61284184Sdim 62284184Sdim#include <sys/param.h> 63284184Sdim#include <sys/systm.h> 64284184Sdim#include <sys/sockio.h> 65284184Sdim#include <sys/mbuf.h> 66284184Sdim#include <sys/kernel.h> 67296417Sdim#include <sys/socket.h> 68284184Sdim 69284184Sdim#include <sys/module.h> 70284184Sdim#include <sys/bus.h> 71284184Sdim#include <machine/bus.h> 72284184Sdim#include <sys/rman.h> 73284184Sdim#include <sys/lock.h> 74284184Sdim#include <sys/mutex.h> 75286684Sdim#include <machine/resource.h> 76286684Sdim 77286684Sdim#include <net/if.h> 78284184Sdim#include <net/if_arp.h> 79286684Sdim#include <net/ethernet.h> 80286684Sdim#include <net/if_dl.h> 81286684Sdim#include <net/if_media.h> 82284184Sdim 83296417Sdim#include <dev/pci/pcireg.h> 84296417Sdim#include <dev/pci/pcivar.h> 85296417Sdim 86286684Sdim#include <dev/an/if_aironet_ieee.h> 87284184Sdim#include <dev/an/if_anreg.h> 88284184Sdim 89284184Sdimstruct an_type { 90284184Sdim u_int16_t an_vid; 91296417Sdim u_int16_t an_did; 92296417Sdim char *an_name; 93284184Sdim}; 94296417Sdim 95284184Sdim#define AIRONET_VENDORID 0x14B9 96284184Sdim#define AIRONET_DEVICEID_35x 0x0350 97284184Sdim#define AIRONET_DEVICEID_4500 0x4500 98284184Sdim#define AIRONET_DEVICEID_4800 0x4800 99296417Sdim#define AIRONET_DEVICEID_4xxx 0x0001 100284184Sdim#define AIRONET_DEVICEID_MPI350 0xA504 101284184Sdim#define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */ 102284184Sdim#define AN_PCI_LOIO 0x18 /* Aironet iobase */ 103284184Sdim 104284184Sdimstatic struct an_type an_devs[] = { 105284184Sdim { AIRONET_VENDORID, AIRONET_DEVICEID_35x, "Cisco Aironet 350 Series" }, 106284184Sdim { AIRONET_VENDORID, AIRONET_DEVICEID_4500, "Aironet PCI4500" }, 107284184Sdim { AIRONET_VENDORID, AIRONET_DEVICEID_4800, "Aironet PCI4800" }, 108286684Sdim { AIRONET_VENDORID, AIRONET_DEVICEID_4xxx, "Aironet PCI4500/PCI4800" }, 109286684Sdim { 0, 0, NULL } 110286684Sdim}; 111286684Sdim 112284184Sdimstatic int an_probe_pci (device_t); 113296417Sdimstatic int an_attach_pci (device_t); 114296417Sdimstatic int an_suspend_pci (device_t); 115296417Sdimstatic int an_resume_pci (device_t); 116296417Sdim 117284184Sdimstatic int 118284184Sdiman_probe_pci(device_t dev) 119296417Sdim{ 120296417Sdim struct an_type *t; 121296417Sdim 122296417Sdim t = an_devs; 123296417Sdim 124296417Sdim while (t->an_name != NULL) { 125284184Sdim if (pci_get_vendor(dev) == t->an_vid && 126284184Sdim pci_get_device(dev) == t->an_did) { 127284184Sdim device_set_desc(dev, t->an_name); 128296417Sdim return(0); 129296417Sdim } 130296417Sdim t++; 131296417Sdim } 132296417Sdim 133284184Sdim if (pci_get_vendor(dev) == AIRONET_VENDORID && 134284184Sdim pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { 135284184Sdim device_set_desc(dev, "Cisco Aironet MPI350"); 136284184Sdim return(0); 137296417Sdim } 138284184Sdim 139284734Sdim return(ENXIO); 140284184Sdim} 141284184Sdim 142296417Sdimstatic int 143296417Sdiman_attach_pci(dev) 144284184Sdim device_t dev; 145284184Sdim{ 146284184Sdim u_int32_t command; 147284184Sdim struct an_softc *sc; 148284184Sdim int unit, flags, error = 0; 149296417Sdim 150284184Sdim sc = device_get_softc(dev); 151296417Sdim unit = device_get_unit(dev); 152296417Sdim flags = device_get_flags(dev); 153296417Sdim bzero(sc, sizeof(struct an_softc)); 154296417Sdim 155296417Sdim if (pci_get_vendor(dev) == AIRONET_VENDORID && 156296417Sdim pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { 157296417Sdim sc->mpi350 = 1; 158296417Sdim sc->port_rid = PCIR_BAR(0); 159296417Sdim } else { 160296417Sdim /* 161296417Sdim * Map control/status registers. 162296417Sdim */ 163296417Sdim command = pci_read_config(dev, PCIR_COMMAND, 4); 164296417Sdim command |= PCIM_CMD_PORTEN; 165296417Sdim pci_write_config(dev, PCIR_COMMAND, command, 4); 166296417Sdim command = pci_read_config(dev, PCIR_COMMAND, 4); 167296417Sdim 168296417Sdim if (!(command & PCIM_CMD_PORTEN)) { 169296417Sdim printf("an%d: failed to enable I/O ports!\n", unit); 170296417Sdim error = ENXIO; 171296417Sdim goto fail; 172296417Sdim } 173296417Sdim sc->port_rid = AN_PCI_LOIO; 174296417Sdim } 175296417Sdim error = an_alloc_port(dev, sc->port_rid, 1); 176296417Sdim 177296417Sdim if (error) { 178296417Sdim printf("an%d: couldn't map ports\n", unit); 179296417Sdim goto fail; 180296417Sdim } 181296417Sdim 182296417Sdim sc->an_btag = rman_get_bustag(sc->port_res); 183296417Sdim sc->an_bhandle = rman_get_bushandle(sc->port_res); 184296417Sdim 185296417Sdim /* Allocate memory for MPI350 */ 186296417Sdim if (sc->mpi350) { 187296417Sdim /* Allocate memory */ 188296417Sdim sc->mem_rid = PCIR_BAR(1); 189296417Sdim error = an_alloc_memory(dev, sc->mem_rid, 1); 190296417Sdim if (error) { 191296417Sdim printf("an%d: couldn't map memory\n", unit); 192296417Sdim goto fail; 193296417Sdim } 194296417Sdim sc->an_mem_btag = rman_get_bustag(sc->mem_res); 195296417Sdim sc->an_mem_bhandle = rman_get_bushandle(sc->mem_res); 196296417Sdim 197292735Sdim /* Allocate aux. memory */ 198296417Sdim sc->mem_aux_rid = PCIR_BAR(2); 199296417Sdim error = an_alloc_aux_memory(dev, sc->mem_aux_rid, 200296417Sdim AN_AUX_MEM_SIZE); 201296417Sdim if (error) { 202296417Sdim printf("an%d: couldn't map aux memory\n", unit); 203296417Sdim goto fail; 204296417Sdim } 205296417Sdim sc->an_mem_aux_btag = rman_get_bustag(sc->mem_aux_res); 206296417Sdim sc->an_mem_aux_bhandle = rman_get_bushandle(sc->mem_aux_res); 207296417Sdim 208296417Sdim /* Allocate DMA region */ 209296417Sdim error = bus_dma_tag_create(NULL, /* parent */ 210296417Sdim 1, 0, /* alignment, bounds */ 211296417Sdim BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 212296417Sdim BUS_SPACE_MAXADDR, /* highaddr */ 213296417Sdim NULL, NULL, /* filter, filterarg */ 214296417Sdim 0x3ffff, /* maxsize XXX */ 215296417Sdim 1, /* nsegments */ 216296417Sdim 0xffff, /* maxsegsize XXX */ 217296417Sdim BUS_DMA_ALLOCNOW, /* flags */ 218296417Sdim NULL, /* lockfunc */ 219296417Sdim NULL, /* lockarg */ 220296417Sdim &sc->an_dtag); 221296417Sdim if (error) { 222296417Sdim printf("an%d: couldn't get DMA region\n", unit); 223296417Sdim goto fail; 224296417Sdim } 225296417Sdim } 226296417Sdim 227296417Sdim /* Allocate interrupt */ 228296417Sdim error = an_alloc_irq(dev, 0, RF_SHAREABLE); 229296417Sdim if (error) { 230296417Sdim goto fail; 231296417Sdim } 232296417Sdim 233296417Sdim sc->an_dev = dev; 234296417Sdim error = an_attach(sc, device_get_unit(dev), flags); 235296417Sdim if (error) { 236296417Sdim goto fail; 237296417Sdim } 238296417Sdim 239296417Sdim /* 240296417Sdim * Must setup the interrupt after the an_attach to prevent racing. 241296417Sdim */ 242296417Sdim error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, 243296417Sdim an_intr, sc, &sc->irq_handle); 244296417Sdim 245296417Sdimfail: 246296417Sdim if (error) 247296417Sdim an_release_resources(dev); 248296417Sdim return(error); 249296417Sdim} 250296417Sdim 251296417Sdimstatic int 252296417Sdiman_suspend_pci(device_t dev) 253296417Sdim{ 254296417Sdim an_shutdown(dev); 255296417Sdim 256296417Sdim return (0); 257296417Sdim} 258296417Sdim 259296417Sdimstatic int 260284184Sdiman_resume_pci(device_t dev) 261296417Sdim{ 262296417Sdim an_resume(dev); 263296417Sdim 264296417Sdim return (0); 265284184Sdim} 266284184Sdim 267284184Sdimstatic device_method_t an_pci_methods[] = { 268284184Sdim /* Device interface */ 269284184Sdim DEVMETHOD(device_probe, an_probe_pci), 270284184Sdim DEVMETHOD(device_attach, an_attach_pci), 271284184Sdim DEVMETHOD(device_detach, an_detach), 272284184Sdim DEVMETHOD(device_shutdown, an_shutdown), 273284184Sdim DEVMETHOD(device_suspend, an_suspend_pci), 274284184Sdim DEVMETHOD(device_resume, an_resume_pci), 275284184Sdim { 0, 0 } 276284184Sdim}; 277284184Sdim 278284184Sdimstatic driver_t an_pci_driver = { 279284184Sdim "an", 280284184Sdim an_pci_methods, 281284184Sdim sizeof(struct an_softc), 282296417Sdim}; 283296417Sdim 284296417Sdimstatic devclass_t an_devclass; 285296417Sdim 286296417SdimDRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0); 287296417SdimMODULE_DEPEND(an, pci, 1, 1, 1); 288296417SdimMODULE_DEPEND(an, wlan, 1, 1, 1); 289296417Sdim