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/* $OpenBSD: if_an_pci.c,v 1.2 2000/04/10 18:09:46 millert Exp $ */
/*
* 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.
*
* $FreeBSD: src/sys/dev/an/if_an_pci.c,v 1.1 2000/01/14 20:40:56 wpaul Exp $
*/
/*
* 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 match 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/timeout.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/ic/anvar.h>
#include <dev/ic/anreg.h>
#define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
#define AN_PCI_LOIO 0x18 /* Aironet iobase */
int an_pci_match __P((struct device *, void *, void *));
void an_pci_attach __P((struct device *, struct device *, void *));
struct cfattach an_pci_ca = {
sizeof (struct an_softc), an_pci_match, an_pci_attach
};
int
an_pci_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_AIRONET &&
(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_AIRONET_PC4500 ||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_AIRONET_PC4800))
return(1);
return(0);
}
void
an_pci_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct an_softc *sc = (struct an_softc *)self;
struct pci_attach_args *pa = aux;
pci_intr_handle_t ih;
bus_space_handle_t ioh;
bus_space_tag_t iot = pa->pa_iot;
pci_chipset_tag_t pc = pa->pa_pc;
pcireg_t csr;
const char *intrstr;
/* Map the I/O ports. */
if (pci_mapreg_map(pa, AN_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
&iot, &ioh, NULL, NULL) != 0) {
printf(": can't map I/O space\n");
return;
}
sc->an_btag = iot;
sc->an_bhandle = ioh;
/* Enable the card. */
csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MASTER_ENABLE);
/* Map and establish the interrupt. */
if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
pa->pa_intrline, &ih)) {
printf("\n%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
return;
}
intrstr = pci_intr_string(pc, ih);
sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, an_intr, sc,
sc->sc_dev.dv_xname);
if (sc->sc_ih == NULL) {
printf("\n%s: couldn't establish interrupt",
sc->sc_dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf(": %s", intrstr);
an_attach(sc);
}
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