3934bc5561
allowed to create any persistent state in their probe routine because it's not guaranteed that they'll win the election and be allowed to attach. Submitted by: Matthew Macy MFC after: 3 days
276 lines
7.7 KiB
C
276 lines
7.7 KiB
C
/*-
|
|
* Copyright (c) 1997, 1998, 1999
|
|
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Bill Paul.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* This is a PCI shim for the Aironet PC4500/4800 wireless network
|
|
* driver. Aironet makes PCMCIA, ISA and PCI versions of these devices,
|
|
* which all have basically the same interface. The ISA and PCI cards
|
|
* are actually bridge adapters with PCMCIA cards inserted into them,
|
|
* however they appear as normal PCI or ISA devices to the host.
|
|
*
|
|
* All we do here is handle the PCI probe and attach and set up an
|
|
* interrupt handler entry point. The PCI version of the card uses
|
|
* a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with
|
|
* multiple PCI address space mappings. The primary mapping at PCI
|
|
* register 0x14 is for the PLX chip itself, *NOT* the Aironet card.
|
|
* The I/O address of the Aironet is actually at register 0x18, which
|
|
* is the local bus mapping register for bus space 0. There are also
|
|
* registers for additional register spaces at registers 0x1C and
|
|
* 0x20, but these are unused in the Aironet devices. To find out
|
|
* more, you need a datasheet for the 9050 from PLX, but you have
|
|
* to go through their sales office to get it. Bleh.
|
|
*/
|
|
|
|
#include "opt_inet.h"
|
|
|
|
#ifdef INET
|
|
#define ANCACHE
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/sockio.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_arp.h>
|
|
#include <net/ethernet.h>
|
|
#include <net/if_dl.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
|
|
#include <dev/an/if_aironet_ieee.h>
|
|
#include <dev/an/if_anreg.h>
|
|
|
|
struct an_type {
|
|
u_int16_t an_vid;
|
|
u_int16_t an_did;
|
|
char *an_name;
|
|
};
|
|
|
|
#define AIRONET_VENDORID 0x14B9
|
|
#define AIRONET_DEVICEID_35x 0x0350
|
|
#define AIRONET_DEVICEID_4500 0x4500
|
|
#define AIRONET_DEVICEID_4800 0x4800
|
|
#define AIRONET_DEVICEID_4xxx 0x0001
|
|
#define AIRONET_DEVICEID_MPI350 0xA504
|
|
#define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
|
|
#define AN_PCI_LOIO 0x18 /* Aironet iobase */
|
|
|
|
static struct an_type an_devs[] = {
|
|
{ AIRONET_VENDORID, AIRONET_DEVICEID_35x, "Cisco Aironet 350 Series" },
|
|
{ AIRONET_VENDORID, AIRONET_DEVICEID_MPI350, "Cisco Aironet MPI350" },
|
|
{ AIRONET_VENDORID, AIRONET_DEVICEID_4500, "Aironet PCI4500" },
|
|
{ AIRONET_VENDORID, AIRONET_DEVICEID_4800, "Aironet PCI4800" },
|
|
{ AIRONET_VENDORID, AIRONET_DEVICEID_4xxx, "Aironet PCI4500/PCI4800" },
|
|
{ 0, 0, NULL }
|
|
};
|
|
|
|
static int an_probe_pci (device_t);
|
|
static int an_attach_pci (device_t);
|
|
static int an_suspend_pci (device_t);
|
|
static int an_resume_pci (device_t);
|
|
|
|
static int
|
|
an_probe_pci(device_t dev)
|
|
{
|
|
struct an_type *t;
|
|
uint16_t vid, did;
|
|
|
|
t = an_devs;
|
|
vid = pci_get_vendor(dev);
|
|
did = pci_get_device(dev);
|
|
|
|
while (t->an_name != NULL) {
|
|
if (vid == t->an_vid &&
|
|
did == t->an_did) {
|
|
device_set_desc(dev, t->an_name);
|
|
return(BUS_PROBE_DEFAULT);
|
|
}
|
|
t++;
|
|
}
|
|
|
|
return(ENXIO);
|
|
}
|
|
|
|
static int
|
|
an_attach_pci(dev)
|
|
device_t dev;
|
|
{
|
|
struct an_softc *sc;
|
|
int flags, error = 0;
|
|
|
|
sc = device_get_softc(dev);
|
|
bzero(sc, sizeof(struct an_softc));
|
|
flags = device_get_flags(dev);
|
|
|
|
/*
|
|
* Setup the lock in PCI attachment since it skips the an_probe
|
|
* function.
|
|
*/
|
|
mtx_init(&sc->an_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
|
|
MTX_DEF);
|
|
|
|
if (pci_get_vendor(dev) == AIRONET_VENDORID &&
|
|
pci_get_device(dev) == AIRONET_DEVICEID_MPI350) {
|
|
sc->mpi350 = 1;
|
|
sc->port_rid = PCIR_BAR(0);
|
|
} else {
|
|
sc->port_rid = AN_PCI_LOIO;
|
|
}
|
|
error = an_alloc_port(dev, sc->port_rid, 1);
|
|
|
|
if (error) {
|
|
device_printf(dev, "couldn't map ports\n");
|
|
goto fail;
|
|
}
|
|
|
|
/* Allocate memory for MPI350 */
|
|
if (sc->mpi350) {
|
|
/* Allocate memory */
|
|
sc->mem_rid = PCIR_BAR(1);
|
|
error = an_alloc_memory(dev, sc->mem_rid, 1);
|
|
if (error) {
|
|
device_printf(dev, "couldn't map memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
/* Allocate aux. memory */
|
|
sc->mem_aux_rid = PCIR_BAR(2);
|
|
error = an_alloc_aux_memory(dev, sc->mem_aux_rid,
|
|
AN_AUX_MEM_SIZE);
|
|
if (error) {
|
|
device_printf(dev, "couldn't map aux memory\n");
|
|
goto fail;
|
|
}
|
|
|
|
/* Allocate DMA region */
|
|
error = bus_dma_tag_create(bus_get_dma_tag(dev),/* parent */
|
|
1, 0, /* alignment, bounds */
|
|
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
|
|
BUS_SPACE_MAXADDR, /* highaddr */
|
|
NULL, NULL, /* filter, filterarg */
|
|
0x3ffff, /* maxsize XXX */
|
|
1, /* nsegments */
|
|
0xffff, /* maxsegsize XXX */
|
|
BUS_DMA_ALLOCNOW, /* flags */
|
|
NULL, /* lockfunc */
|
|
NULL, /* lockarg */
|
|
&sc->an_dtag);
|
|
if (error) {
|
|
device_printf(dev, "couldn't get DMA region\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
/* Allocate interrupt */
|
|
error = an_alloc_irq(dev, 0, RF_SHAREABLE);
|
|
if (error) {
|
|
device_printf(dev, "couldn't get interrupt\n");
|
|
goto fail;
|
|
}
|
|
|
|
sc->an_dev = dev;
|
|
error = an_attach(sc, flags);
|
|
if (error) {
|
|
device_printf(dev, "couldn't attach\n");
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Must setup the interrupt after the an_attach to prevent racing.
|
|
*/
|
|
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET,
|
|
NULL, an_intr, sc, &sc->irq_handle);
|
|
if (error)
|
|
device_printf(dev, "couldn't setup interrupt\n");
|
|
|
|
fail:
|
|
if (error)
|
|
an_release_resources(dev);
|
|
return(error);
|
|
}
|
|
|
|
static int
|
|
an_suspend_pci(device_t dev)
|
|
{
|
|
an_shutdown(dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
an_resume_pci(device_t dev)
|
|
{
|
|
an_resume(dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t an_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, an_probe_pci),
|
|
DEVMETHOD(device_attach, an_attach_pci),
|
|
DEVMETHOD(device_detach, an_detach),
|
|
DEVMETHOD(device_shutdown, an_shutdown),
|
|
DEVMETHOD(device_suspend, an_suspend_pci),
|
|
DEVMETHOD(device_resume, an_resume_pci),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t an_pci_driver = {
|
|
"an",
|
|
an_pci_methods,
|
|
sizeof(struct an_softc),
|
|
};
|
|
|
|
static devclass_t an_devclass;
|
|
|
|
DRIVER_MODULE(an, pci, an_pci_driver, an_devclass, 0, 0);
|
|
MODULE_DEPEND(an, pci, 1, 1, 1);
|
|
MODULE_DEPEND(an, wlan, 1, 1, 1);
|