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/* $OpenBSD: if_pgt_pci.c,v 1.20 2024/05/24 06:02:56 jsg Exp $ */
/*
* Copyright (c) 2006 Marcus Glocker <mglocker@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* PCI front-end for the PrismGT
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/timeout.h>
#include <sys/device.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_radiotap.h>
#include <dev/ic/pgtreg.h>
#include <dev/ic/pgtvar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
/* Base Address Register */
#define PGT_PCI_BAR0 0x10
int pgt_pci_match(struct device *, void *, void *);
void pgt_pci_attach(struct device *, struct device *, void *);
int pgt_pci_detach(struct device *, int);
struct pgt_pci_softc {
struct pgt_softc sc_pgt;
pci_chipset_tag_t sc_pc;
void *sc_ih;
bus_size_t sc_mapsize;
};
const struct cfattach pgt_pci_ca = {
sizeof(struct pgt_pci_softc), pgt_pci_match, pgt_pci_attach,
pgt_pci_detach, pgt_activate
};
const struct pci_matchid pgt_pci_devices[] = {
{ PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3877 },
{ PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_ISL3890 },
{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CRWE154G72 }
};
int
pgt_pci_match(struct device *parent, void *match, void *aux)
{
return (pci_matchbyid((struct pci_attach_args *)aux, pgt_pci_devices,
sizeof(pgt_pci_devices) / sizeof(pgt_pci_devices[0])));
}
void
pgt_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct pgt_pci_softc *psc = (struct pgt_pci_softc *)self;
struct pgt_softc *sc = &psc->sc_pgt;
struct pci_attach_args *pa = aux;
const char *intrstr = NULL;
pci_intr_handle_t ih;
int error;
sc->sc_dmat = pa->pa_dmat;
psc->sc_pc = pa->pa_pc;
/* remember chipset */
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTERSIL_ISL3877)
sc->sc_flags |= SC_ISL3877;
/* map control / status registers */
error = pci_mapreg_map(pa, PGT_PCI_BAR0,
PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->sc_iotag, &sc->sc_iohandle, NULL, &psc->sc_mapsize, 0);
if (error != 0) {
printf(": can't map mem space\n");
return;
}
/* map interrupt */
if (pci_intr_map(pa, &ih) != 0) {
printf(": can't map interrupt\n");
return;
}
/* disable all interrupts */
bus_space_write_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN, 0);
(void)bus_space_read_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN);
DELAY(PGT_WRITEIO_DELAY);
/* establish interrupt */
intrstr = pci_intr_string(psc->sc_pc, ih);
psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, pgt_intr, sc,
sc->sc_dev.dv_xname);
if (psc->sc_ih == NULL) {
printf(": can't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf(": %s\n", intrstr);
config_mountroot(self, pgt_attach);
}
int
pgt_pci_detach(struct device *self, int flags)
{
struct pgt_pci_softc *psc = (struct pgt_pci_softc *)self;
struct pgt_softc *sc = &psc->sc_pgt;
if (psc->sc_ih != NULL) {
pgt_detach(sc);
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
}
if (psc->sc_mapsize > 0)
bus_space_unmap(sc->sc_iotag, sc->sc_iohandle,
psc->sc_mapsize);
return (0);
}
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