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/* $OpenBSD: if_ath_pci.c,v 1.28 2024/05/24 06:02:53 jsg Exp $ */
/* $NetBSD: if_ath_pci.c,v 1.7 2004/06/30 05:58:17 mycroft Exp $ */
/*-
* Copyright (c) 2002-2004 Sam Leffler, Errno Consulting
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*/
/*
* PCI front-end for the Atheros Wireless LAN controller driver.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/gpio.h>
#include <machine/bus.h>
#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_rssadapt.h>
#include <dev/gpio/gpiovar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <dev/ic/athvar.h>
/*
* PCI glue.
*/
struct ath_pci_softc {
struct ath_softc sc_sc;
pci_chipset_tag_t sc_pc;
pcitag_t sc_pcitag;
void *sc_ih; /* Interrupt handler. */
};
/* Base Address Register */
#define ATH_BAR0 0x10
int ath_pci_match(struct device *, void *, void *);
void ath_pci_attach(struct device *, struct device *, void *);
int ath_pci_detach(struct device *, int);
const struct cfattach ath_pci_ca = {
sizeof(struct ath_pci_softc),
ath_pci_match,
ath_pci_attach,
ath_pci_detach,
ath_activate
};
int
ath_pci_match(struct device *parent, void *match, void *aux)
{
const char* devname;
struct pci_attach_args *pa = aux;
pci_vendor_id_t vendor;
vendor = PCI_VENDOR(pa->pa_id);
if (vendor == 0x128c)
vendor = PCI_VENDOR_ATHEROS;
devname = ath_hal_probe(vendor, PCI_PRODUCT(pa->pa_id));
if (devname)
return 1;
return 0;
}
void
ath_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct ath_pci_softc *psc = (struct ath_pci_softc *)self;
struct ath_softc *sc = &psc->sc_sc;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
pcitag_t pt = pa->pa_tag;
pci_intr_handle_t ih;
pcireg_t mem_type;
const char *intrstr = NULL;
psc->sc_pc = pc;
psc->sc_pcitag = pt;
/*
* Setup memory-mapping of PCI registers.
*/
mem_type = pci_mapreg_type(pc, pa->pa_tag, ATH_BAR0);
if (mem_type != PCI_MAPREG_TYPE_MEM &&
mem_type != PCI_MAPREG_MEM_TYPE_64BIT) {
printf(": bad PCI register type %d\n", (int)mem_type);
goto fail;
}
if (pci_mapreg_map(pa, ATH_BAR0, mem_type, 0, &sc->sc_st, &sc->sc_sh,
NULL, &sc->sc_ss, 0)) {
printf(": can't map register space\n");
goto fail;
}
/*
* PCI Express check.
*/
if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PCIEXPRESS,
NULL, NULL) != 0)
sc->sc_pcie = 1;
sc->sc_invalid = 1;
/*
* Arrange interrupt line.
*/
if (pci_intr_map(pa, &ih)) {
printf(": can't map interrupt\n");
goto unmap;
}
intrstr = pci_intr_string(pc, ih);
psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ath_intr, sc,
sc->sc_dev.dv_xname);
if (psc->sc_ih == NULL) {
printf(": can't map interrupt\n");
goto unmap;
}
printf(": %s\n", intrstr);
sc->sc_dmat = pa->pa_dmat;
if (ath_attach(PCI_PRODUCT(pa->pa_id), sc) == 0)
return;
pci_intr_disestablish(pc, psc->sc_ih);
unmap:
bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_ss);
fail:
return;
}
int
ath_pci_detach(struct device *self, int flags)
{
struct ath_pci_softc *psc = (struct ath_pci_softc *)self;
struct ath_softc *sc = &psc->sc_sc;
ath_detach(&psc->sc_sc, flags);
if (psc->sc_ih != NULL) {
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
psc->sc_ih = NULL;
}
if (sc->sc_ss != 0) {
bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_ss);
sc->sc_ss = 0;
}
return (0);
}
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