if_an_pci.c revision 119277
155992Swpaul/* 255992Swpaul * Copyright (c) 1997, 1998, 1999 355992Swpaul * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 455992Swpaul * 555992Swpaul * Redistribution and use in source and binary forms, with or without 655992Swpaul * modification, are permitted provided that the following conditions 755992Swpaul * are met: 855992Swpaul * 1. Redistributions of source code must retain the above copyright 955992Swpaul * notice, this list of conditions and the following disclaimer. 1055992Swpaul * 2. Redistributions in binary form must reproduce the above copyright 1155992Swpaul * notice, this list of conditions and the following disclaimer in the 1255992Swpaul * documentation and/or other materials provided with the distribution. 1355992Swpaul * 3. All advertising materials mentioning features or use of this software 1455992Swpaul * must display the following acknowledgement: 1555992Swpaul * This product includes software developed by Bill Paul. 1655992Swpaul * 4. Neither the name of the author nor the names of any co-contributors 1755992Swpaul * may be used to endorse or promote products derived from this software 1855992Swpaul * without specific prior written permission. 1955992Swpaul * 2055992Swpaul * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 2155992Swpaul * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2255992Swpaul * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2355992Swpaul * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 2455992Swpaul * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2555992Swpaul * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2655992Swpaul * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2755992Swpaul * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2855992Swpaul * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2955992Swpaul * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 3055992Swpaul * THE POSSIBILITY OF SUCH DAMAGE. 3155992Swpaul */ 3255992Swpaul 3355992Swpaul/* 3455992Swpaul * This is a PCI shim for the Aironet PC4500/4800 wireless network 3555992Swpaul * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices, 3655992Swpaul * which all have basically the same interface. The ISA and PCI cards 3755992Swpaul * are actually bridge adapters with PCMCIA cards inserted into them, 3855992Swpaul * however they appear as normal PCI or ISA devices to the host. 3955992Swpaul * 4055992Swpaul * All we do here is handle the PCI probe and attach and set up an 4155992Swpaul * interrupt handler entry point. The PCI version of the card uses 4255992Swpaul * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with 4355992Swpaul * multiple PCI address space mappings. The primary mapping at PCI 4455992Swpaul * register 0x14 is for the PLX chip itself, *NOT* the Aironet card. 4555992Swpaul * The I/O address of the Aironet is actually at register 0x18, which 4655992Swpaul * is the local bus mapping register for bus space 0. There are also 4755992Swpaul * registers for additional register spaces at registers 0x1C and 4855992Swpaul * 0x20, but these are unused in the Aironet devices. To find out 4955992Swpaul * more, you need a datasheet for the 9050 from PLX, but you have 5055992Swpaul * to go through their sales office to get it. Bleh. 5155992Swpaul */ 5255992Swpaul 53113038Sobrien#include <sys/cdefs.h> 54113038Sobrien__FBSDID("$FreeBSD: head/sys/dev/an/if_an_pci.c 119277 2003-08-22 05:54:52Z imp $"); 55113038Sobrien 5655992Swpaul#include "opt_inet.h" 5755992Swpaul 5855992Swpaul#ifdef INET 5955992Swpaul#define ANCACHE 6055992Swpaul#endif 6155992Swpaul 6255992Swpaul#include <sys/param.h> 6355992Swpaul#include <sys/systm.h> 6455992Swpaul#include <sys/sockio.h> 6555992Swpaul#include <sys/mbuf.h> 6655992Swpaul#include <sys/kernel.h> 6755992Swpaul#include <sys/socket.h> 6855992Swpaul 6955992Swpaul#include <sys/module.h> 7055992Swpaul#include <sys/bus.h> 7155992Swpaul#include <machine/bus.h> 7255992Swpaul#include <sys/rman.h> 7384811Sjhb#include <sys/lock.h> 7467365Sjhb#include <sys/mutex.h> 7555992Swpaul#include <machine/resource.h> 7655992Swpaul 7755992Swpaul#include <net/if.h> 7855992Swpaul#include <net/if_arp.h> 7955992Swpaul#include <net/ethernet.h> 8055992Swpaul#include <net/if_dl.h> 8177217Sphk#include <net/if_media.h> 8255992Swpaul 83119277Simp#include <dev/pci/pcireg.h> 84119277Simp#include <dev/pci/pcivar.h> 8555992Swpaul 8655992Swpaul#include <dev/an/if_aironet_ieee.h> 8755992Swpaul#include <dev/an/if_anreg.h> 8855992Swpaul 8955992Swpaulstruct an_type { 9055992Swpaul u_int16_t an_vid; 9155992Swpaul u_int16_t an_did; 9255992Swpaul char *an_name; 9355992Swpaul}; 9455992Swpaul 9555992Swpaul#define AIRONET_VENDORID 0x14B9 9681221Sbrooks#define AIRONET_DEVICEID_35x 0x0350 9755992Swpaul#define AIRONET_DEVICEID_4500 0x4500 9855992Swpaul#define AIRONET_DEVICEID_4800 0x4800 9955992Swpaul#define AIRONET_DEVICEID_4xxx 0x0001 100108401Sambrisko#define AIRONET_DEVICEID_MPI350 0xA504 10155992Swpaul#define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */ 10255992Swpaul#define AN_PCI_LOIO 0x18 /* Aironet iobase */ 10355992Swpaul 10455992Swpaulstatic struct an_type an_devs[] = { 10581221Sbrooks { AIRONET_VENDORID, AIRONET_DEVICEID_35x, "Cisco Aironet 350 Series" }, 10655992Swpaul { AIRONET_VENDORID, AIRONET_DEVICEID_4500, "Aironet PCI4500" }, 10755992Swpaul { AIRONET_VENDORID, AIRONET_DEVICEID_4800, "Aironet PCI4800" }, 10855992Swpaul { AIRONET_VENDORID, AIRONET_DEVICEID_4xxx, "Aironet PCI4500/PCI4800" }, 10955992Swpaul { 0, 0, NULL } 11055992Swpaul}; 11155992Swpaul 11292739Salfredstatic int an_probe_pci (device_t); 11392739Salfredstatic int an_attach_pci (device_t); 11492739Salfredstatic int an_detach_pci (device_t); 115110362Sambriskostatic int an_suspend_pci (device_t); 116110362Sambriskostatic int an_resume_pci (device_t); 11755992Swpaul 11883270Sbrooksstatic int 11983270Sbrooksan_probe_pci(device_t dev) 12055992Swpaul{ 12155992Swpaul struct an_type *t; 12255992Swpaul 12355992Swpaul t = an_devs; 12455992Swpaul 12583270Sbrooks while (t->an_name != NULL) { 12655992Swpaul if (pci_get_vendor(dev) == t->an_vid && 12756051Swpaul pci_get_device(dev) == t->an_did) { 12855992Swpaul device_set_desc(dev, t->an_name); 12955992Swpaul return(0); 13055992Swpaul } 13155992Swpaul t++; 13255992Swpaul } 13355992Swpaul 134108401Sambrisko if (pci_get_vendor(dev) == AIRONET_VENDORID && 135108401Sambrisko pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { 136108401Sambrisko device_set_desc(dev, "Cisco Aironet MPI350"); 137108401Sambrisko return(0); 138108401Sambrisko } 139108401Sambrisko 14055992Swpaul return(ENXIO); 14155992Swpaul} 14255992Swpaul 14383270Sbrooksstatic int 14483270Sbrooksan_attach_pci(dev) 14555992Swpaul device_t dev; 14655992Swpaul{ 14755992Swpaul u_int32_t command; 14855992Swpaul struct an_softc *sc; 14955992Swpaul int unit, flags, error = 0; 15055992Swpaul 15155992Swpaul sc = device_get_softc(dev); 15255992Swpaul unit = device_get_unit(dev); 15355992Swpaul flags = device_get_flags(dev); 15455992Swpaul bzero(sc, sizeof(struct an_softc)); 15583270Sbrooks 156108401Sambrisko if (pci_get_vendor(dev) == AIRONET_VENDORID && 157108401Sambrisko pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { 158108401Sambrisko sc->mpi350 = 1; 159108401Sambrisko sc->port_rid = PCIR_MAPS; 160108401Sambrisko } else { 161108401Sambrisko /* 162108401Sambrisko * Map control/status registers. 163108401Sambrisko */ 164108401Sambrisko command = pci_read_config(dev, PCIR_COMMAND, 4); 165108401Sambrisko command |= PCIM_CMD_PORTEN; 166108401Sambrisko pci_write_config(dev, PCIR_COMMAND, command, 4); 167108401Sambrisko command = pci_read_config(dev, PCIR_COMMAND, 4); 16855992Swpaul 169108401Sambrisko if (!(command & PCIM_CMD_PORTEN)) { 170108401Sambrisko printf("an%d: failed to enable I/O ports!\n", unit); 171108401Sambrisko error = ENXIO; 172108401Sambrisko goto fail; 173108401Sambrisko } 174108401Sambrisko sc->port_rid = AN_PCI_LOIO; 17555992Swpaul } 17655992Swpaul error = an_alloc_port(dev, sc->port_rid, 1); 17755992Swpaul 17855992Swpaul if (error) { 17955992Swpaul printf("an%d: couldn't map ports\n", unit); 18055992Swpaul goto fail; 18155992Swpaul } 18255992Swpaul 18355992Swpaul sc->an_btag = rman_get_bustag(sc->port_res); 18455992Swpaul sc->an_bhandle = rman_get_bushandle(sc->port_res); 18555992Swpaul 186108401Sambrisko /* Allocate memory for MPI350 */ 187108401Sambrisko if (sc->mpi350) { 188108401Sambrisko /* Allocate memory */ 189108401Sambrisko sc->mem_rid = PCIR_MAPS + 4; 190108401Sambrisko error = an_alloc_memory(dev, sc->mem_rid, 1); 191108401Sambrisko if (error) { 192108401Sambrisko printf("an%d: couldn't map memory\n", unit); 193108401Sambrisko goto fail; 194108401Sambrisko } 195108401Sambrisko sc->an_mem_btag = rman_get_bustag(sc->mem_res); 196108401Sambrisko sc->an_mem_bhandle = rman_get_bushandle(sc->mem_res); 197108401Sambrisko 198108401Sambrisko /* Allocate aux. memory */ 199108401Sambrisko sc->mem_aux_rid = PCIR_MAPS + 8; 200108401Sambrisko error = an_alloc_aux_memory(dev, sc->mem_aux_rid, 201119156Sambrisko AN_AUX_MEM_SIZE); 202108401Sambrisko if (error) { 203108401Sambrisko printf("an%d: couldn't map aux memory\n", unit); 204108401Sambrisko goto fail; 205108401Sambrisko } 206108401Sambrisko sc->an_mem_aux_btag = rman_get_bustag(sc->mem_aux_res); 207108401Sambrisko sc->an_mem_aux_bhandle = rman_get_bushandle(sc->mem_aux_res); 208108401Sambrisko 209108401Sambrisko /* Allocate DMA region */ 210108401Sambrisko error = bus_dma_tag_create(NULL, /* parent */ 211108401Sambrisko 1, 0, /* alignment, bounds */ 212108401Sambrisko BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 213108401Sambrisko BUS_SPACE_MAXADDR, /* highaddr */ 214108401Sambrisko NULL, NULL, /* filter, filterarg */ 215108401Sambrisko 0x3ffff, /* maxsize XXX */ 216108401Sambrisko 1, /* nsegments */ 217108401Sambrisko 0xffff, /* maxsegsize XXX */ 218108401Sambrisko BUS_DMA_ALLOCNOW, /* flags */ 219117126Sscottl NULL, /* lockfunc */ 220117126Sscottl NULL, /* lockarg */ 221108401Sambrisko &sc->an_dtag); 222108401Sambrisko if (error) { 223108401Sambrisko printf("an%d: couldn't get DMA region\n", unit); 224108401Sambrisko goto fail; 225108401Sambrisko } 226108401Sambrisko } 227108401Sambrisko 22855992Swpaul /* Allocate interrupt */ 22955992Swpaul error = an_alloc_irq(dev, 0, RF_SHAREABLE); 23055992Swpaul if (error) { 23155992Swpaul goto fail; 23255992Swpaul } 23383270Sbrooks 234113316Simp sc->an_dev = dev; 235113316Simp error = an_attach(sc, device_get_unit(dev), flags); 23655992Swpaul if (error) { 23755992Swpaul goto fail; 23855992Swpaul } 23955992Swpaul 240113316Simp /* 241113316Simp * Must setup the interrupt after the an_attach to prevent racing. 242113316Simp */ 243113316Simp error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, 244113316Simp an_intr, sc, &sc->irq_handle); 24555992Swpaul 24655992Swpaulfail: 247108401Sambrisko if (error) 248108401Sambrisko an_release_resources(dev); 24955992Swpaul return(error); 25055992Swpaul} 25155992Swpaul 25283270Sbrooksstatic int 25355992Swpaulan_detach_pci(device_t dev) 25455992Swpaul{ 25555992Swpaul struct an_softc *sc = device_get_softc(dev); 25655992Swpaul struct ifnet *ifp = &sc->arpcom.ac_if; 25755992Swpaul 25855992Swpaul an_stop(sc); 25977217Sphk ifmedia_removeall(&sc->an_ifmedia); 260106937Ssam ether_ifdetach(ifp); 26155992Swpaul bus_teardown_intr(dev, sc->irq_res, sc->irq_handle); 26255992Swpaul an_release_resources(dev); 26355992Swpaul 26455992Swpaul return (0); 26555992Swpaul} 26655992Swpaul 267110362Sambriskostatic int 268110362Sambriskoan_suspend_pci(device_t dev) 269110362Sambrisko{ 270110362Sambrisko an_shutdown(dev); 271110362Sambrisko 272110362Sambrisko return (0); 273110362Sambrisko} 274110362Sambrisko 275110362Sambriskostatic int 276110362Sambriskoan_resume_pci(device_t dev) 277110362Sambrisko{ 278110362Sambrisko an_resume(dev); 279110362Sambrisko 280110362Sambrisko return (0); 281110362Sambrisko} 282110362Sambrisko 28355992Swpaulstatic device_method_t an_pci_methods[] = { 28455992Swpaul /* Device interface */ 28555992Swpaul DEVMETHOD(device_probe, an_probe_pci), 28655992Swpaul DEVMETHOD(device_attach, an_attach_pci), 28755992Swpaul DEVMETHOD(device_detach, an_detach_pci), 28855992Swpaul DEVMETHOD(device_shutdown, an_shutdown), 289110362Sambrisko DEVMETHOD(device_suspend, an_suspend_pci), 290110362Sambrisko DEVMETHOD(device_resume, an_resume_pci), 29155992Swpaul { 0, 0 } 29255992Swpaul}; 29355992Swpaul 29455992Swpaulstatic driver_t an_pci_driver = { 29555992Swpaul "an", 29655992Swpaul an_pci_methods, 29755992Swpaul sizeof(struct an_softc), 29855992Swpaul}; 29955992Swpaul 30055992Swpaulstatic devclass_t an_devclass; 30155992Swpaul 302113506SmdoddDRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0); 303113506SmdoddMODULE_DEPEND(an, pci, 1, 1, 1); 304113506SmdoddMODULE_DEPEND(an, wlan, 1, 1, 1); 305