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/* $OpenBSD: if_fpa.c,v 1.27 2010/09/20 07:40:38 deraadt Exp $ */
/* $NetBSD: if_fpa.c,v 1.15 1996/10/21 22:56:40 thorpej Exp $ */
/*-
* Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*
* Id: if_fpa.c,v 1.8 1996/05/17 01:15:18 thomas Exp
*
*/
/*
* DEC PDQ FDDI Controller; code for BSD derived operating systems
*
* This module supports the DEC DEFPA PCI FDDI Controller
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_dl.h>
#include <net/route.h>
#include "bpfilter.h"
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <net/if_fddi.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pcivar.h>
#include <dev/ic/pdqvar.h>
#include <dev/ic/pdqreg.h>
#define DEFPA_LATENCY 0x88
#define DEFPA_CBMA (PCI_MAPREG_START + 0) /* Config Base Memory Address */
#define DEFPA_CBIO (PCI_MAPREG_START + 4) /* Config Base I/O Address */
int pdq_pci_ifintr(void *);
int pdq_pci_match(struct device *, void *, void *);
void pdq_pci_attach(struct device *, struct device *, void *aux);
int
pdq_pci_ifintr(arg)
void *arg;
{
pdq_softc_t *sc = (pdq_softc_t *)arg;
(void) pdq_interrupt(sc->sc_pdq);
return (1);
}
int
pdq_pci_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_DEFPA)
return (1);
return (0);
}
void
pdq_pci_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
pdq_softc_t *sc = (pdq_softc_t *)self;
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
u_int32_t data;
pci_intr_handle_t intrhandle;
const char *intrstr;
bus_size_t csrsize;
data = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);
if (PCI_LATTIMER(data) < DEFPA_LATENCY) {
data &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
data |= (DEFPA_LATENCY & PCI_LATTIMER_MASK)
<< PCI_LATTIMER_SHIFT;
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, data);
}
bcopy(sc->sc_dev.dv_xname, sc->sc_if.if_xname, IFNAMSIZ);
sc->sc_if.if_flags = 0;
sc->sc_if.if_softc = sc;
/*
* NOTE: sc_bc is an alias for sc_csrtag and sc_membase is an
* alias for sc_csrhandle. sc_iobase is not used in this front-end.
*/
#ifdef PDQ_IOMAPPED
if (pci_mapreg_map(pa, DEFPA_CBIO, PCI_MAPREG_TYPE_IO, 0,
&sc->sc_csrtag, &sc->sc_csrhandle, NULL, &csrsize, 0)) {
printf(": can't map i/o space\n");
return;
}
#else
if (pci_mapreg_map(pa, DEFPA_CBMA, PCI_MAPREG_TYPE_MEM, 0,
&sc->sc_csrtag, &sc->sc_csrhandle, NULL, &csrsize, 0)) {
printf(": can't map mem space\n");
return;
}
#endif
if (pci_intr_map(pa, &intrhandle)) {
printf(": couldn't map interrupt\n");
bus_space_unmap(sc->sc_csrtag, sc->sc_csrhandle, csrsize);
return;
}
intrstr = pci_intr_string(pa->pa_pc, intrhandle);
sc->sc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_NET,
pdq_pci_ifintr, sc, self->dv_xname);
if (sc->sc_ih == NULL) {
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
bus_space_unmap(sc->sc_csrtag, sc->sc_csrhandle, csrsize);
return;
}
if (intrstr != NULL)
printf(": %s\n", intrstr);
sc->sc_pdq = pdq_initialize(sc->sc_csrtag, sc->sc_csrhandle,
sc->sc_if.if_xname, 0, (void *) sc, PDQ_DEFPA);
if (sc->sc_pdq == NULL) {
printf(": initialization failed\n");
bus_space_unmap(sc->sc_csrtag, sc->sc_csrhandle, csrsize);
return;
}
bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes,
sc->sc_arpcom.ac_enaddr, 6);
pdq_ifattach(sc, NULL);
}
struct cfattach fpa_ca = {
sizeof(pdq_softc_t), pdq_pci_match, pdq_pci_attach
};
struct cfdriver fpa_cd = {
NULL, "fpa", DV_IFNET
};
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