149 lines
5.2 KiB
C
149 lines
5.2 KiB
C
/* $OpenBSD: if_an_pci.c,v 1.20 2022/03/11 18:00:45 mpi Exp $ */
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/*
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* Copyright (c) 1997, 1998, 1999
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* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD: src/sys/dev/an/if_an_pci.c,v 1.1 2000/01/14 20:40:56 wpaul Exp $
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*/
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/*
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* This is a PCI shim for the Aironet PC4500/4800 wireless network
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* driver. Aironet makes PCMCIA, ISA and PCI versions of these devices,
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* which all have basically the same interface. The ISA and PCI cards
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* are actually bridge adapters with PCMCIA cards inserted into them,
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* however they appear as normal PCI or ISA devices to the host.
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*
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* All we do here is handle the PCI match and attach and set up an
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* interrupt handler entry point. The PCI version of the card uses
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* a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with
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* multiple PCI address space mappings. The primary mapping at PCI
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* register 0x14 is for the PLX chip itself, *NOT* the Aironet card.
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* The I/O address of the Aironet is actually at register 0x18, which
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* is the local bus mapping register for bus space 0. There are also
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* registers for additional register spaces at registers 0x1C and
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* 0x20, but these are unused in the Aironet devices. To find out
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* more, you need a datasheet for the 9050 from PLX, but you have
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* to go through their sales office to get it. Bleh.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/timeout.h>
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#include <sys/socket.h>
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#include <sys/tree.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_var.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/ic/anreg.h>
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#include <dev/ic/anvar.h>
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#define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
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#define AN_PCI_LOIO 0x18 /* Aironet iobase */
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int an_pci_match(struct device *, void *, void *);
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void an_pci_attach(struct device *, struct device *, void *);
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const struct cfattach an_pci_ca = {
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sizeof (struct an_softc), an_pci_match, an_pci_attach
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};
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const struct pci_matchid an_pci_devices[] = {
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{ PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI352 },
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{ PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 },
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{ PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 },
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{ PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800_1 },
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};
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int
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an_pci_match(struct device *parent, void *match, void *aux)
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{
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return (pci_matchbyid((struct pci_attach_args *)aux, an_pci_devices,
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nitems(an_pci_devices)));
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}
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void
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an_pci_attach(struct device *parent, struct device *self, void *aux)
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{
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struct an_softc *sc = (struct an_softc *)self;
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struct pci_attach_args *pa = aux;
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pci_intr_handle_t ih;
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bus_space_handle_t ioh;
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bus_space_tag_t iot = pa->pa_iot;
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pci_chipset_tag_t pc = pa->pa_pc;
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const char *intrstr;
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/* Map the I/O ports. */
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if (pci_mapreg_map(pa, AN_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
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&iot, &ioh, NULL, NULL, 0) != 0) {
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printf(": can't map i/o space\n");
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return;
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}
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sc->sc_iot = iot;
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sc->sc_ioh = ioh;
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/* Map and establish the interrupt. */
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if (pci_intr_map(pa, &ih)) {
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printf("\n%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
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return;
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}
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intrstr = pci_intr_string(pc, ih);
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sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, an_intr, sc,
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sc->sc_dev.dv_xname);
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if (sc->sc_ih == NULL) {
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printf("\n%s: couldn't establish interrupt",
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sc->sc_dev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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printf(": %s", intrstr);
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sc->sc_enabled = 1;
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an_attach(sc);
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}
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