2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
36 * This is a PCI shim for the Aironet PC4500/4800 wireless network
37 * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices,
38 * which all have basically the same interface. The ISA and PCI cards
39 * are actually bridge adapters with PCMCIA cards inserted into them,
40 * however they appear as normal PCI or ISA devices to the host.
42 * All we do here is handle the PCI probe and attach and set up an
43 * interrupt handler entry point. The PCI version of the card uses
44 * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with
45 * multiple PCI address space mappings. The primary mapping at PCI
46 * register 0x14 is for the PLX chip itself, *NOT* the Aironet card.
47 * The I/O address of the Aironet is actually at register 0x18, which
48 * is the local bus mapping register for bus space 0. There are also
49 * registers for additional register spaces at registers 0x1C and
50 * 0x20, but these are unused in the Aironet devices. To find out
51 * more, you need a datasheet for the 9050 from PLX, but you have
52 * to go through their sales office to get it. Bleh.
61 #include <sys/param.h>
62 #include <sys/systm.h>
63 #include <sys/sockio.h>
65 #include <sys/kernel.h>
66 #include <sys/socket.h>
68 #include <sys/module.h>
70 #include <machine/bus.h>
72 #include <sys/mutex.h>
73 #include <machine/resource.h>
76 #include <net/if_arp.h>
77 #include <net/ethernet.h>
78 #include <net/if_dl.h>
79 #include <net/if_media.h>
81 #include <pci/pcireg.h>
82 #include <pci/pcivar.h>
85 static const char rcsid[] =
89 #include <dev/an/if_aironet_ieee.h>
90 #include <dev/an/if_anreg.h>
98 #define AIRONET_VENDORID 0x14B9
99 #define AIRONET_DEVICEID_4500 0x4500
100 #define AIRONET_DEVICEID_4800 0x4800
101 #define AIRONET_DEVICEID_4xxx 0x0001
102 #define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
103 #define AN_PCI_LOIO 0x18 /* Aironet iobase */
105 static struct an_type an_devs[] = {
106 { AIRONET_VENDORID, AIRONET_DEVICEID_4500, "Aironet PCI4500" },
107 { AIRONET_VENDORID, AIRONET_DEVICEID_4800, "Aironet PCI4800" },
108 { AIRONET_VENDORID, AIRONET_DEVICEID_4xxx, "Aironet PCI4500/PCI4800" },
112 static int an_probe_pci __P((device_t));
113 static int an_attach_pci __P((device_t));
114 static int an_detach_pci __P((device_t));
116 static int an_probe_pci(device_t dev)
122 while(t->an_name != NULL) {
123 if (pci_get_vendor(dev) == t->an_vid &&
124 pci_get_device(dev) == t->an_did) {
125 device_set_desc(dev, t->an_name);
134 static int an_attach_pci(dev)
139 int unit, flags, error = 0;
141 sc = device_get_softc(dev);
142 unit = device_get_unit(dev);
143 flags = device_get_flags(dev);
144 bzero(sc, sizeof(struct an_softc));
147 * Map control/status registers.
149 command = pci_read_config(dev, PCIR_COMMAND, 4);
150 command |= PCIM_CMD_PORTEN;
151 pci_write_config(dev, PCIR_COMMAND, command, 4);
152 command = pci_read_config(dev, PCIR_COMMAND, 4);
154 if (!(command & PCIM_CMD_PORTEN)) {
155 printf("an%d: failed to enable I/O ports!\n", unit);
160 sc->port_rid = AN_PCI_LOIO;
161 error = an_alloc_port(dev, sc->port_rid, 1);
164 printf("an%d: couldn't map ports\n", unit);
168 sc->an_btag = rman_get_bustag(sc->port_res);
169 sc->an_bhandle = rman_get_bushandle(sc->port_res);
171 /* Allocate interrupt */
172 error = an_alloc_irq(dev, 0, RF_SHAREABLE);
174 an_release_resources(dev);
178 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
179 an_intr, sc, &sc->irq_handle);
181 an_release_resources(dev);
186 error = an_attach(sc, device_get_unit(dev), flags);
193 an_detach_pci(device_t dev)
195 struct an_softc *sc = device_get_softc(dev);
196 struct ifnet *ifp = &sc->arpcom.ac_if;
199 ifmedia_removeall(&sc->an_ifmedia);
200 ether_ifdetach(ifp, ETHER_BPF_SUPPORTED);
201 bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
202 an_release_resources(dev);
207 static device_method_t an_pci_methods[] = {
208 /* Device interface */
209 DEVMETHOD(device_probe, an_probe_pci),
210 DEVMETHOD(device_attach, an_attach_pci),
211 DEVMETHOD(device_detach, an_detach_pci),
212 DEVMETHOD(device_shutdown, an_shutdown),
216 static driver_t an_pci_driver = {
219 sizeof(struct an_softc),
222 static devclass_t an_devclass;
224 DRIVER_MODULE(if_an, pci, an_pci_driver, an_devclass, 0, 0);