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.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
37 * This is a PCI shim for the Aironet PC4500/4800 wireless network
38 * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices,
39 * which all have basically the same interface. The ISA and PCI cards
40 * are actually bridge adapters with PCMCIA cards inserted into them,
41 * however they appear as normal PCI or ISA devices to the host.
43 * All we do here is handle the PCI probe and attach and set up an
44 * interrupt handler entry point. The PCI version of the card uses
45 * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with
46 * multiple PCI address space mappings. The primary mapping at PCI
47 * register 0x14 is for the PLX chip itself, *NOT* the Aironet card.
48 * The I/O address of the Aironet is actually at register 0x18, which
49 * is the local bus mapping register for bus space 0. There are also
50 * registers for additional register spaces at registers 0x1C and
51 * 0x20, but these are unused in the Aironet devices. To find out
52 * more, you need a datasheet for the 9050 from PLX, but you have
53 * to go through their sales office to get it. Bleh.
62 #include <sys/param.h>
63 #include <sys/systm.h>
64 #include <sys/sockio.h>
66 #include <sys/kernel.h>
67 #include <sys/socket.h>
69 #include <sys/module.h>
71 #include <machine/bus.h>
74 #include <sys/mutex.h>
75 #include <machine/resource.h>
78 #include <net/if_arp.h>
79 #include <net/ethernet.h>
80 #include <net/if_dl.h>
81 #include <net/if_media.h>
83 #include <dev/pci/pcireg.h>
84 #include <dev/pci/pcivar.h>
86 #include <dev/an/if_aironet_ieee.h>
87 #include <dev/an/if_anreg.h>
95 #define AIRONET_VENDORID 0x14B9
96 #define AIRONET_DEVICEID_35x 0x0350
97 #define AIRONET_DEVICEID_4500 0x4500
98 #define AIRONET_DEVICEID_4800 0x4800
99 #define AIRONET_DEVICEID_4xxx 0x0001
100 #define AIRONET_DEVICEID_MPI350 0xA504
101 #define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
102 #define AN_PCI_LOIO 0x18 /* Aironet iobase */
104 static struct an_type an_devs[] = {
105 { AIRONET_VENDORID, AIRONET_DEVICEID_35x, "Cisco Aironet 350 Series" },
106 { AIRONET_VENDORID, AIRONET_DEVICEID_MPI350, "Cisco Aironet MPI350" },
107 { AIRONET_VENDORID, AIRONET_DEVICEID_4500, "Aironet PCI4500" },
108 { AIRONET_VENDORID, AIRONET_DEVICEID_4800, "Aironet PCI4800" },
109 { AIRONET_VENDORID, AIRONET_DEVICEID_4xxx, "Aironet PCI4500/PCI4800" },
113 static int an_probe_pci (device_t);
114 static int an_attach_pci (device_t);
115 static int an_suspend_pci (device_t);
116 static int an_resume_pci (device_t);
119 an_probe_pci(device_t dev)
125 vid = pci_get_vendor(dev);
126 did = pci_get_device(dev);
128 while (t->an_name != NULL) {
129 if (vid == t->an_vid &&
131 device_set_desc(dev, t->an_name);
132 return(BUS_PROBE_DEFAULT);
145 int flags, error = 0;
147 sc = device_get_softc(dev);
148 bzero(sc, sizeof(struct an_softc));
149 flags = device_get_flags(dev);
152 * Setup the lock in PCI attachment since it skips the an_probe
155 mtx_init(&sc->an_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
158 if (pci_get_vendor(dev) == AIRONET_VENDORID &&
159 pci_get_device(dev) == AIRONET_DEVICEID_MPI350) {
161 sc->port_rid = PCIR_BAR(0);
163 sc->port_rid = AN_PCI_LOIO;
165 error = an_alloc_port(dev, sc->port_rid, 1);
168 device_printf(dev, "couldn't map ports\n");
172 /* Allocate memory for MPI350 */
174 /* Allocate memory */
175 sc->mem_rid = PCIR_BAR(1);
176 error = an_alloc_memory(dev, sc->mem_rid, 1);
178 device_printf(dev, "couldn't map memory\n");
182 /* Allocate aux. memory */
183 sc->mem_aux_rid = PCIR_BAR(2);
184 error = an_alloc_aux_memory(dev, sc->mem_aux_rid,
187 device_printf(dev, "couldn't map aux memory\n");
191 /* Allocate DMA region */
192 error = bus_dma_tag_create(bus_get_dma_tag(dev),/* parent */
193 1, 0, /* alignment, bounds */
194 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
195 BUS_SPACE_MAXADDR, /* highaddr */
196 NULL, NULL, /* filter, filterarg */
197 0x3ffff, /* maxsize XXX */
199 0xffff, /* maxsegsize XXX */
200 BUS_DMA_ALLOCNOW, /* flags */
205 device_printf(dev, "couldn't get DMA region\n");
210 /* Allocate interrupt */
211 error = an_alloc_irq(dev, 0, RF_SHAREABLE);
213 device_printf(dev, "couldn't get interrupt\n");
218 error = an_attach(sc, flags);
220 device_printf(dev, "couldn't attach\n");
225 * Must setup the interrupt after the an_attach to prevent racing.
227 error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
228 NULL, an_intr, sc, &sc->irq_handle);
230 device_printf(dev, "couldn't setup interrupt\n");
234 an_release_resources(dev);
239 an_suspend_pci(device_t dev)
247 an_resume_pci(device_t dev)
254 static device_method_t an_pci_methods[] = {
255 /* Device interface */
256 DEVMETHOD(device_probe, an_probe_pci),
257 DEVMETHOD(device_attach, an_attach_pci),
258 DEVMETHOD(device_detach, an_detach),
259 DEVMETHOD(device_shutdown, an_shutdown),
260 DEVMETHOD(device_suspend, an_suspend_pci),
261 DEVMETHOD(device_resume, an_resume_pci),
265 static driver_t an_pci_driver = {
268 sizeof(struct an_softc),
271 static devclass_t an_devclass;
273 DRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0);
274 MODULE_DEPEND(an, pci, 1, 1, 1);
275 MODULE_DEPEND(an, wlan, 1, 1, 1);