1/*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1997, 1998, 1999 5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35#include <sys/cdefs.h> 36__FBSDID("$FreeBSD: releng/12.0/sys/dev/an/if_an_pci.c 338948 2018-09-26 17:12:14Z imp $"); 37 38/* 39 * This is a PCI shim for the Aironet PC4500/4800 wireless network 40 * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices, 41 * which all have basically the same interface. The ISA and PCI cards 42 * are actually bridge adapters with PCMCIA cards inserted into them, 43 * however they appear as normal PCI or ISA devices to the host. 44 * 45 * All we do here is handle the PCI probe and attach and set up an 46 * interrupt handler entry point. The PCI version of the card uses 47 * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with 48 * multiple PCI address space mappings. The primary mapping at PCI 49 * register 0x14 is for the PLX chip itself, *NOT* the Aironet card. 50 * The I/O address of the Aironet is actually at register 0x18, which 51 * is the local bus mapping register for bus space 0. There are also 52 * registers for additional register spaces at registers 0x1C and 53 * 0x20, but these are unused in the Aironet devices. To find out 54 * more, you need a datasheet for the 9050 from PLX, but you have 55 * to go through their sales office to get it. Bleh. 56 */ 57 58#include "opt_inet.h" 59 60#ifdef INET 61#define ANCACHE 62#endif 63 64#include <sys/param.h> 65#include <sys/systm.h> 66#include <sys/sockio.h> 67#include <sys/mbuf.h> 68#include <sys/kernel.h> 69#include <sys/socket.h> 70 71#include <sys/module.h> 72#include <sys/bus.h> 73#include <machine/bus.h> 74#include <sys/rman.h> 75#include <sys/lock.h> 76#include <sys/mutex.h> 77#include <machine/resource.h> 78 79#include <net/if.h> 80#include <net/if_arp.h> 81#include <net/ethernet.h> 82#include <net/if_dl.h> 83#include <net/if_media.h> 84 85#include <dev/pci/pcireg.h> 86#include <dev/pci/pcivar.h> 87 88#include <dev/an/if_aironet_ieee.h> 89#include <dev/an/if_anreg.h> 90 91struct an_type { 92 u_int16_t an_vid; 93 u_int16_t an_did; 94 char *an_name; 95}; 96 97#define AIRONET_VENDORID 0x14B9 98#define AIRONET_DEVICEID_35x 0x0350 99#define AIRONET_DEVICEID_4500 0x4500 100#define AIRONET_DEVICEID_4800 0x4800 101#define AIRONET_DEVICEID_4xxx 0x0001 102#define AIRONET_DEVICEID_MPI350 0xA504 103#define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */ 104#define AN_PCI_LOIO 0x18 /* Aironet iobase */ 105 106static struct an_type an_devs[] = { 107 { AIRONET_VENDORID, AIRONET_DEVICEID_35x, "Cisco Aironet 350 Series" }, 108 { AIRONET_VENDORID, AIRONET_DEVICEID_MPI350, "Cisco Aironet MPI350" }, 109 { AIRONET_VENDORID, AIRONET_DEVICEID_4500, "Aironet PCI4500" }, 110 { AIRONET_VENDORID, AIRONET_DEVICEID_4800, "Aironet PCI4800" }, 111 { AIRONET_VENDORID, AIRONET_DEVICEID_4xxx, "Aironet PCI4500/PCI4800" }, 112 { 0, 0, NULL } 113}; 114 115static int an_probe_pci (device_t); 116static int an_attach_pci (device_t); 117static int an_suspend_pci (device_t); 118static int an_resume_pci (device_t); 119 120static int 121an_probe_pci(device_t dev) 122{ 123 struct an_type *t; 124 uint16_t vid, did; 125 126 t = an_devs; 127 vid = pci_get_vendor(dev); 128 did = pci_get_device(dev); 129 130 while (t->an_name != NULL) { 131 if (vid == t->an_vid && 132 did == t->an_did) { 133 device_set_desc(dev, t->an_name); 134 return(BUS_PROBE_DEFAULT); 135 } 136 t++; 137 } 138 139 return(ENXIO); 140} 141 142static int 143an_attach_pci(dev) 144 device_t dev; 145{ 146 struct an_softc *sc; 147 int flags, error = 0; 148 149 sc = device_get_softc(dev); 150 bzero(sc, sizeof(struct an_softc)); 151 flags = device_get_flags(dev); 152 153 /* 154 * Setup the lock in PCI attachment since it skips the an_probe 155 * function. 156 */ 157 mtx_init(&sc->an_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 158 MTX_DEF); 159 160 if (pci_get_vendor(dev) == AIRONET_VENDORID && 161 pci_get_device(dev) == AIRONET_DEVICEID_MPI350) { 162 sc->mpi350 = 1; 163 sc->port_rid = PCIR_BAR(0); 164 } else { 165 sc->port_rid = AN_PCI_LOIO; 166 } 167 error = an_alloc_port(dev, sc->port_rid, 1); 168 169 if (error) { 170 device_printf(dev, "couldn't map ports\n"); 171 goto fail; 172 } 173 174 /* Allocate memory for MPI350 */ 175 if (sc->mpi350) { 176 /* Allocate memory */ 177 sc->mem_rid = PCIR_BAR(1); 178 error = an_alloc_memory(dev, sc->mem_rid, 1); 179 if (error) { 180 device_printf(dev, "couldn't map memory\n"); 181 goto fail; 182 } 183 184 /* Allocate aux. memory */ 185 sc->mem_aux_rid = PCIR_BAR(2); 186 error = an_alloc_aux_memory(dev, sc->mem_aux_rid, 187 AN_AUX_MEM_SIZE); 188 if (error) { 189 device_printf(dev, "couldn't map aux memory\n"); 190 goto fail; 191 } 192 193 /* Allocate DMA region */ 194 error = bus_dma_tag_create(bus_get_dma_tag(dev),/* parent */ 195 1, 0, /* alignment, bounds */ 196 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 197 BUS_SPACE_MAXADDR, /* highaddr */ 198 NULL, NULL, /* filter, filterarg */ 199 0x3ffff, /* maxsize XXX */ 200 1, /* nsegments */ 201 0xffff, /* maxsegsize XXX */ 202 BUS_DMA_ALLOCNOW, /* flags */ 203 NULL, /* lockfunc */ 204 NULL, /* lockarg */ 205 &sc->an_dtag); 206 if (error) { 207 device_printf(dev, "couldn't get DMA region\n"); 208 goto fail; 209 } 210 } 211 212 /* Allocate interrupt */ 213 error = an_alloc_irq(dev, 0, RF_SHAREABLE); 214 if (error) { 215 device_printf(dev, "couldn't get interrupt\n"); 216 goto fail; 217 } 218 219 sc->an_dev = dev; 220 error = an_attach(sc, flags); 221 if (error) { 222 device_printf(dev, "couldn't attach\n"); 223 goto fail; 224 } 225 226 /* 227 * Must setup the interrupt after the an_attach to prevent racing. 228 */ 229 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, 230 NULL, an_intr, sc, &sc->irq_handle); 231 if (error) 232 device_printf(dev, "couldn't setup interrupt\n"); 233 234fail: 235 if (error) 236 an_release_resources(dev); 237 return(error); 238} 239 240static int 241an_suspend_pci(device_t dev) 242{ 243 an_shutdown(dev); 244 245 return (0); 246} 247 248static int 249an_resume_pci(device_t dev) 250{ 251 an_resume(dev); 252 253 return (0); 254} 255 256static device_method_t an_pci_methods[] = { 257 /* Device interface */ 258 DEVMETHOD(device_probe, an_probe_pci), 259 DEVMETHOD(device_attach, an_attach_pci), 260 DEVMETHOD(device_detach, an_detach), 261 DEVMETHOD(device_shutdown, an_shutdown), 262 DEVMETHOD(device_suspend, an_suspend_pci), 263 DEVMETHOD(device_resume, an_resume_pci), 264 { 0, 0 } 265}; 266 267static driver_t an_pci_driver = { 268 "an", 269 an_pci_methods, 270 sizeof(struct an_softc), 271}; 272 273static devclass_t an_devclass; 274 275DRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0); 276MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, an, 277 an_devs, nitems(an_devs) - 1); 278MODULE_DEPEND(an, pci, 1, 1, 1); 279MODULE_DEPEND(an, wlan, 1, 1, 1); 280