if_an_pci.c revision 166901
1119418Sobrien/*- 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 33119418Sobrien#include <sys/cdefs.h> 34119418Sobrien__FBSDID("$FreeBSD: head/sys/dev/an/if_an_pci.c 166901 2007-02-23 12:19:07Z piso $"); 35119418Sobrien 3655992Swpaul/* 3755992Swpaul * This is a PCI shim for the Aironet PC4500/4800 wireless network 3855992Swpaul * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices, 3955992Swpaul * which all have basically the same interface. The ISA and PCI cards 4055992Swpaul * are actually bridge adapters with PCMCIA cards inserted into them, 4155992Swpaul * however they appear as normal PCI or ISA devices to the host. 4255992Swpaul * 4355992Swpaul * All we do here is handle the PCI probe and attach and set up an 4455992Swpaul * interrupt handler entry point. The PCI version of the card uses 4555992Swpaul * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with 4655992Swpaul * multiple PCI address space mappings. The primary mapping at PCI 4755992Swpaul * register 0x14 is for the PLX chip itself, *NOT* the Aironet card. 4855992Swpaul * The I/O address of the Aironet is actually at register 0x18, which 4955992Swpaul * is the local bus mapping register for bus space 0. There are also 5055992Swpaul * registers for additional register spaces at registers 0x1C and 5155992Swpaul * 0x20, but these are unused in the Aironet devices. To find out 5255992Swpaul * more, you need a datasheet for the 9050 from PLX, but you have 5355992Swpaul * to go through their sales office to get it. Bleh. 5455992Swpaul */ 5555992Swpaul 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); 114110362Sambriskostatic int an_suspend_pci (device_t); 115110362Sambriskostatic int an_resume_pci (device_t); 11655992Swpaul 11783270Sbrooksstatic int 11883270Sbrooksan_probe_pci(device_t dev) 11955992Swpaul{ 12055992Swpaul struct an_type *t; 12155992Swpaul 12255992Swpaul t = an_devs; 12355992Swpaul 12483270Sbrooks while (t->an_name != NULL) { 12555992Swpaul if (pci_get_vendor(dev) == t->an_vid && 12656051Swpaul pci_get_device(dev) == t->an_did) { 12755992Swpaul device_set_desc(dev, t->an_name); 128143163Simp return(BUS_PROBE_DEFAULT); 12955992Swpaul } 13055992Swpaul t++; 13155992Swpaul } 13255992Swpaul 133108401Sambrisko if (pci_get_vendor(dev) == AIRONET_VENDORID && 134108401Sambrisko pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { 135108401Sambrisko device_set_desc(dev, "Cisco Aironet MPI350"); 136143163Simp return(BUS_PROBE_DEFAULT); 137108401Sambrisko } 138108401Sambrisko 13955992Swpaul return(ENXIO); 14055992Swpaul} 14155992Swpaul 14283270Sbrooksstatic int 14383270Sbrooksan_attach_pci(dev) 14455992Swpaul device_t dev; 14555992Swpaul{ 14655992Swpaul u_int32_t command; 14755992Swpaul struct an_softc *sc; 14855992Swpaul int unit, flags, error = 0; 14955992Swpaul 15055992Swpaul sc = device_get_softc(dev); 15155992Swpaul unit = device_get_unit(dev); 15255992Swpaul flags = device_get_flags(dev); 15355992Swpaul bzero(sc, sizeof(struct an_softc)); 15483270Sbrooks 155108401Sambrisko if (pci_get_vendor(dev) == AIRONET_VENDORID && 156108401Sambrisko pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { 157108401Sambrisko sc->mpi350 = 1; 158119690Sjhb sc->port_rid = PCIR_BAR(0); 159108401Sambrisko } else { 160108401Sambrisko /* 161108401Sambrisko * Map control/status registers. 162108401Sambrisko */ 163108401Sambrisko command = pci_read_config(dev, PCIR_COMMAND, 4); 164108401Sambrisko command |= PCIM_CMD_PORTEN; 165108401Sambrisko pci_write_config(dev, PCIR_COMMAND, command, 4); 166108401Sambrisko command = pci_read_config(dev, PCIR_COMMAND, 4); 16755992Swpaul 168108401Sambrisko if (!(command & PCIM_CMD_PORTEN)) { 169108401Sambrisko printf("an%d: failed to enable I/O ports!\n", unit); 170108401Sambrisko error = ENXIO; 171108401Sambrisko goto fail; 172108401Sambrisko } 173108401Sambrisko sc->port_rid = AN_PCI_LOIO; 17455992Swpaul } 17555992Swpaul error = an_alloc_port(dev, sc->port_rid, 1); 17655992Swpaul 17755992Swpaul if (error) { 17855992Swpaul printf("an%d: couldn't map ports\n", unit); 17955992Swpaul goto fail; 18055992Swpaul } 18155992Swpaul 18255992Swpaul sc->an_btag = rman_get_bustag(sc->port_res); 18355992Swpaul sc->an_bhandle = rman_get_bushandle(sc->port_res); 18455992Swpaul 185108401Sambrisko /* Allocate memory for MPI350 */ 186108401Sambrisko if (sc->mpi350) { 187108401Sambrisko /* Allocate memory */ 188119690Sjhb sc->mem_rid = PCIR_BAR(1); 189108401Sambrisko error = an_alloc_memory(dev, sc->mem_rid, 1); 190108401Sambrisko if (error) { 191108401Sambrisko printf("an%d: couldn't map memory\n", unit); 192108401Sambrisko goto fail; 193108401Sambrisko } 194108401Sambrisko sc->an_mem_btag = rman_get_bustag(sc->mem_res); 195108401Sambrisko sc->an_mem_bhandle = rman_get_bushandle(sc->mem_res); 196108401Sambrisko 197108401Sambrisko /* Allocate aux. memory */ 198119690Sjhb sc->mem_aux_rid = PCIR_BAR(2); 199108401Sambrisko error = an_alloc_aux_memory(dev, sc->mem_aux_rid, 200119156Sambrisko AN_AUX_MEM_SIZE); 201108401Sambrisko if (error) { 202108401Sambrisko printf("an%d: couldn't map aux memory\n", unit); 203108401Sambrisko goto fail; 204108401Sambrisko } 205108401Sambrisko sc->an_mem_aux_btag = rman_get_bustag(sc->mem_aux_res); 206108401Sambrisko sc->an_mem_aux_bhandle = rman_get_bushandle(sc->mem_aux_res); 207108401Sambrisko 208108401Sambrisko /* Allocate DMA region */ 209108401Sambrisko error = bus_dma_tag_create(NULL, /* parent */ 210108401Sambrisko 1, 0, /* alignment, bounds */ 211108401Sambrisko BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 212108401Sambrisko BUS_SPACE_MAXADDR, /* highaddr */ 213108401Sambrisko NULL, NULL, /* filter, filterarg */ 214108401Sambrisko 0x3ffff, /* maxsize XXX */ 215108401Sambrisko 1, /* nsegments */ 216108401Sambrisko 0xffff, /* maxsegsize XXX */ 217108401Sambrisko BUS_DMA_ALLOCNOW, /* flags */ 218117126Sscottl NULL, /* lockfunc */ 219117126Sscottl NULL, /* lockarg */ 220108401Sambrisko &sc->an_dtag); 221108401Sambrisko if (error) { 222108401Sambrisko printf("an%d: couldn't get DMA region\n", unit); 223108401Sambrisko goto fail; 224108401Sambrisko } 225108401Sambrisko } 226108401Sambrisko 22755992Swpaul /* Allocate interrupt */ 22855992Swpaul error = an_alloc_irq(dev, 0, RF_SHAREABLE); 22955992Swpaul if (error) { 23055992Swpaul goto fail; 23155992Swpaul } 23283270Sbrooks 233113316Simp sc->an_dev = dev; 234113316Simp error = an_attach(sc, device_get_unit(dev), flags); 23555992Swpaul if (error) { 23655992Swpaul goto fail; 23755992Swpaul } 23855992Swpaul 239113316Simp /* 240113316Simp * Must setup the interrupt after the an_attach to prevent racing. 241113316Simp */ 242113316Simp error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, 243166901Spiso NULL, an_intr, sc, &sc->irq_handle); 24455992Swpaul 24555992Swpaulfail: 246108401Sambrisko if (error) 247108401Sambrisko an_release_resources(dev); 24855992Swpaul return(error); 24955992Swpaul} 25055992Swpaul 25183270Sbrooksstatic int 252110362Sambriskoan_suspend_pci(device_t dev) 253110362Sambrisko{ 254110362Sambrisko an_shutdown(dev); 255110362Sambrisko 256110362Sambrisko return (0); 257110362Sambrisko} 258110362Sambrisko 259110362Sambriskostatic int 260110362Sambriskoan_resume_pci(device_t dev) 261110362Sambrisko{ 262110362Sambrisko an_resume(dev); 263110362Sambrisko 264110362Sambrisko return (0); 265110362Sambrisko} 266110362Sambrisko 26755992Swpaulstatic device_method_t an_pci_methods[] = { 26855992Swpaul /* Device interface */ 26955992Swpaul DEVMETHOD(device_probe, an_probe_pci), 27055992Swpaul DEVMETHOD(device_attach, an_attach_pci), 271123978Sambrisko DEVMETHOD(device_detach, an_detach), 27255992Swpaul DEVMETHOD(device_shutdown, an_shutdown), 273110362Sambrisko DEVMETHOD(device_suspend, an_suspend_pci), 274110362Sambrisko DEVMETHOD(device_resume, an_resume_pci), 27555992Swpaul { 0, 0 } 27655992Swpaul}; 27755992Swpaul 27855992Swpaulstatic driver_t an_pci_driver = { 27955992Swpaul "an", 28055992Swpaul an_pci_methods, 28155992Swpaul sizeof(struct an_softc), 28255992Swpaul}; 28355992Swpaul 28455992Swpaulstatic devclass_t an_devclass; 28555992Swpaul 286113506SmdoddDRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0); 287113506SmdoddMODULE_DEPEND(an, pci, 1, 1, 1); 288113506SmdoddMODULE_DEPEND(an, wlan, 1, 1, 1); 289