851de295eb
pci_attach_args *" instead of from four separate parameters which in all cases were extracted from the same "struct pci_attach_args". This both simplifies the driver api, and allows for alternate PCI interrupt mapping schemes, such as one using the tables described in the Intel Multiprocessor Spec which describe interrupt wirings for devices behind pci-pci bridges based on the device's location rather the bridge's location. Tested on alpha and i386; welcome to 1.5Q
510 lines
13 KiB
C
510 lines
13 KiB
C
/* $NetBSD: if_fpa.c,v 1.33 2000/12/28 22:59:13 sommerfeld Exp $ */
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/*-
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* Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
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* 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. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Id: if_fpa.c,v 1.11 1997/06/05 01:56:35 thomas Exp
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*
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*/
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/*
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* DEC PDQ FDDI Controller; code for BSD derived operating systems
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*
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* This module supports the DEC DEFPA PCI FDDI Controller
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*/
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#ifdef __NetBSD__
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#include "opt_inet.h"
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#endif
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/malloc.h>
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#if defined(__FreeBSD__) && BSD < 199401
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#include <sys/devconf.h>
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#elif defined(__bsdi__) || defined(__NetBSD__)
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#include <sys/device.h>
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#endif
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/if_dl.h>
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#include <net/route.h>
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#include "bpfilter.h"
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#include <net/bpfdesc.h>
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#endif
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#ifdef INET
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#include <netinet/in.h>
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#endif
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#if defined(__FreeBSD__)
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#include <netinet/if_fddi.h>
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#else
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#include <net/if_fddi.h>
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#endif
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#if defined(__FreeBSD__)
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#include <vm/vm.h>
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#include "fpa.h"
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#include <netinet/if_ether.h>
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#include <pci/pcivar.h>
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#include <i386/isa/icu.h>
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#include <dev/pdq/pdqvar.h>
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#include <dev/pdq/pdqreg.h>
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#elif defined(__bsdi__)
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#include <netinet/if_ether.h>
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#include <i386/isa/isavar.h>
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#include <i386/isa/icu.h>
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#ifndef DRQNONE
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#define DRQNONE 0
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#endif
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#if _BSDI_VERSION < 199401
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#define IRQSHARE 0
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#endif
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#include <i386/pci/pci.h>
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#include <dev/pdq/pdqvar.h>
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#include <dev/pdq/pdqreg.h>
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#elif defined(__NetBSD__)
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/pcivar.h>
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#include <dev/ic/pdqvar.h>
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#include <dev/ic/pdqreg.h>
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#endif /* __NetBSD__ */
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#define DEC_VENDORID 0x1011
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#define DEFPA_CHIPID 0x000F
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#define PCI_VENDORID(x) ((x) & 0xFFFF)
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#define PCI_CHIPID(x) (((x) >> 16) & 0xFFFF)
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#define DEFPA_LATENCY 0x88
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#define PCI_CFLT 0x0C /* Configuration Latency */
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#define PCI_CBMA 0x10 /* Configuration Base Memory Address */
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#define PCI_CBIO 0x14 /* Configuration Base I/O Address */
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#if defined(__FreeBSD__)
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#if NFPA < 4
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#undef NFPA
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#define NFPA 4
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#endif
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static pdq_softc_t *pdqs_pci[NFPA];
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#define PDQ_PCI_UNIT_TO_SOFTC(unit) (pdqs_pci[unit])
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#if BSD >= 199506
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#define pdq_pci_ifwatchdog NULL
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static void pdq_pci_shutdown(int howto, void *sc);
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#endif
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#elif defined(__bsdi__)
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extern struct cfdriver fpacd;
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#define PDQ_PCI_UNIT_TO_SOFTC(unit) ((pdq_softc_t *)fpacd.cd_devs[unit])
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#elif defined(__NetBSD__)
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extern struct cfattach fpa_ca;
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extern struct cfdriver fpa_cd;
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#define PDQ_PCI_UNIT_TO_SOFTC(unit) ((pdq_softc_t *)fpa_cd.cd_devs[unit])
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#define pdq_pci_ifwatchdog NULL
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#endif
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#ifndef pdq_pci_ifwatchdog
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static ifnet_ret_t
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pdq_pci_ifwatchdog(
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int unit)
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{
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pdq_ifwatchdog(&PDQ_PCI_UNIT_TO_SOFTC(unit)->sc_if);
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}
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#endif
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#if defined(__FreeBSD__) && BSD >= 199506
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static void
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pdq_pci_ifintr(
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void *arg)
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{
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(void) pdq_interrupt(((pdq_softc_t *) arg)->sc_pdq);
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}
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#else
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static int
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pdq_pci_ifintr(
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void *arg)
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{
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pdq_softc_t * const sc = (pdq_softc_t *) arg;
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#ifdef __FreeBSD__
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return pdq_interrupt(sc->sc_pdq);
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#elif defined(__bsdi__) || defined(__NetBSD__)
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(void) pdq_interrupt(sc->sc_pdq);
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return 1;
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#endif
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}
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#endif /* __FreeBSD && BSD */
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#if defined(__FreeBSD__)
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/*
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* This is the PCI configuration support. Since the PDQ is available
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* on both EISA and PCI boards, one must be careful in how defines the
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* PDQ in the config file.
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*/
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static char *
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pdq_pci_probe(
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pcici_t config_id,
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pcidi_t device_id)
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{
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if (PCI_VENDORID(device_id) == DEC_VENDORID &&
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PCI_CHIPID(device_id) == DEFPA_CHIPID)
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return "Digital DEFPA PCI FDDI Controller";
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return NULL;
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}
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static void
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pdq_pci_attach(
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pcici_t config_id,
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int unit)
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{
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pdq_softc_t *sc;
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vaddr_t va_csrs;
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paddr_t pa_csrs;
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pdq_uint32_t data;
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if (unit == NFPA) {
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printf("fpa%d: not configured; kernel is built for only %d device%s.\n",
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unit, NFPA, NFPA == 1 ? "" : "s");
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return;
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}
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data = pci_conf_read(config_id, PCI_CFLT);
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if ((data & 0xFF00) < (DEFPA_LATENCY << 8)) {
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data &= ~0xFF00;
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data |= DEFPA_LATENCY << 8;
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pci_conf_write(config_id, PCI_CFLT, data);
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}
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sc = (pdq_softc_t *) malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT);
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if (sc == NULL)
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return;
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bzero(sc, sizeof(pdq_softc_t)); /* Zero out the softc*/
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if (!pci_map_mem(config_id, PCI_CBMA, &va_csrs, &pa_csrs)) {
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free((void *) sc, M_DEVBUF);
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return;
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}
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sc->sc_if.if_name = "fpa";
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sc->sc_if.if_unit = unit;
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sc->sc_membase = (pdq_bus_memaddr_t) va_csrs;
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sc->sc_pdq = pdq_initialize(PDQ_BUS_PCI, sc->sc_membase,
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sc->sc_if.if_name, sc->sc_if.if_unit,
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(void *) sc, PDQ_DEFPA);
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if (sc->sc_pdq == NULL) {
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free((void *) sc, M_DEVBUF);
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return;
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}
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bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, sc->sc_ac.ac_enaddr, 6);
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pdqs_pci[unit] = sc;
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pdq_ifattach(sc, pdq_pci_ifwatchdog);
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pci_map_int(config_id, pdq_pci_ifintr, (void*) sc, &net_imask);
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#if BSD >= 199506
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at_shutdown(pdq_pci_shutdown, (void *) sc, SHUTDOWN_POST_SYNC);
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#endif
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}
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#if BSD < 199401
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static int
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pdq_pci_shutdown(
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struct kern_devconf *kdc,
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int force)
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{
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if (kdc->kdc_unit < NFPA)
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pdq_hwreset(PDQ_PCI_UNIT_TO_SOFTC(kdc->kdc_unit)->sc_pdq);
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(void) dev_detach(kdc);
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return 0;
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}
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#else
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static void
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pdq_pci_shutdown(
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int howto,
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void *sc)
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{
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pdq_hwreset(((pdq_softc_t *)sc)->sc_pdq);
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}
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#endif
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static u_long pdq_pci_count;
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struct pci_device fpadevice = {
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"fpa",
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pdq_pci_probe,
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pdq_pci_attach,
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&pdq_pci_count,
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#if BSD < 199401
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pdq_pci_shutdown,
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#endif
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};
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#ifdef DATA_SET
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DATA_SET (pcidevice_set, fpadevice);
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#endif
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#elif defined(__bsdi__)
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static int
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pdq_pci_match(
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pci_devaddr_t *pa)
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{
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int irq;
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int id;
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id = pci_inl(pa, PCI_VENDOR_ID);
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if (PCI_VENDORID(id) != DEC_VENDORID || PCI_CHIPID(id) != DEFPA_CHIPID)
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return 0;
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irq = pci_inl(pa, PCI_I_LINE) & 0xFF;
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if (irq == 0 || irq >= 16)
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return 0;
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return 1;
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}
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int
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pdq_pci_probe(
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struct device *parent,
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struct cfdata *cf,
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void *aux)
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{
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struct isa_attach_args *ia = (struct isa_attach_args *) aux;
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pdq_uint32_t irq, data;
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pci_devaddr_t *pa;
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pa = pci_scan(pdq_pci_match);
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if (pa == NULL)
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return 0;
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irq = (1 << (pci_inl(pa, PCI_I_LINE) & 0xFF));
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if (ia->ia_irq != IRQUNK && irq != ia->ia_irq) {
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printf("fpa%d: error: desired IRQ of %d does not match device's actual IRQ of %d\n",
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cf->cf_unit,
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ffs(ia->ia_irq) - 1, ffs(irq) - 1);
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return 0;
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}
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if (ia->ia_irq == IRQUNK) {
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(void) isa_irqalloc(irq);
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ia->ia_irq = irq;
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}
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/* PCI bus masters don't use host DMA channels */
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ia->ia_drq = DRQNONE;
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/* Get the memory base address; assume the BIOS set it up correctly */
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ia->ia_maddr = (caddr_t) (pci_inl(pa, PCI_CBMA) & ~7);
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pci_outl(pa, PCI_CBMA, 0xFFFFFFFF);
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ia->ia_msize = ((~pci_inl(pa, PCI_CBMA)) | 7) + 1;
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pci_outl(pa, PCI_CBMA, (int) ia->ia_maddr);
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/* Disable I/O space access */
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pci_outl(pa, PCI_COMMAND, pci_inl(pa, PCI_COMMAND) & ~1);
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ia->ia_iobase = 0;
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ia->ia_iosize = 0;
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/* Make sure the latency timer is what the DEFPA likes */
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data = pci_inl(pa, PCI_CFLT);
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if ((data & 0xFF00) < (DEFPA_LATENCY << 8)) {
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data &= ~0xFF00;
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data |= DEFPA_LATENCY << 8;
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pci_outl(pa, PCI_CFLT, data);
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}
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ia->ia_irq |= IRQSHARE;
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return 1;
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}
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void
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pdq_pci_attach(
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struct device *parent,
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struct device *self,
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void *aux)
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{
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pdq_softc_t *sc = (pdq_softc_t *) self;
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struct isa_attach_args *ia = (struct isa_attach_args *) aux;
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struct ifnet *ifp = &sc->sc_if;
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int i;
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sc->sc_if.if_unit = sc->sc_dev.dv_unit;
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sc->sc_if.if_name = "fpa";
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sc->sc_if.if_flags = 0;
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sc->sc_membase = (pdq_bus_memaddr_t) mapphys((vaddr_t)ia->ia_maddr, ia->ia_msize);
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sc->sc_pdq = pdq_initialize(PDQ_BUS_PCI, sc->sc_membase,
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sc->sc_if.if_name, sc->sc_if.if_unit,
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(void *) sc, PDQ_DEFPA);
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if (sc->sc_pdq == NULL) {
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printf("fpa%d: initialization failed\n", sc->sc_if.if_unit);
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return;
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}
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bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, sc->sc_ac.ac_enaddr, 6);
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pdq_ifattach(sc, pdq_pci_ifwatchdog);
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isa_establish(&sc->sc_id, &sc->sc_dev);
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sc->sc_ih.ih_fun = pdq_pci_ifintr;
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sc->sc_ih.ih_arg = (void *)sc;
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intr_establish(ia->ia_irq, &sc->sc_ih, DV_NET);
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sc->sc_ats.func = (void (*)(void *)) pdq_hwreset;
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sc->sc_ats.arg = (void *) sc->sc_pdq;
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atshutdown(&sc->sc_ats, ATSH_ADD);
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}
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struct cfdriver fpacd = {
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0, "fpa", pdq_pci_probe, pdq_pci_attach,
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#if _BSDI_VERSION >= 199401
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DV_IFNET,
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#endif
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sizeof(pdq_softc_t)
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};
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#elif defined(__NetBSD__)
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static int
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pdq_pci_match(
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struct device *parent,
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struct cfdata *match,
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void *aux)
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{
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struct pci_attach_args *pa = (struct pci_attach_args *) aux;
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if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_DEC)
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return 0;
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if (PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_DEC_DEFPA)
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return 0;
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return 1;
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}
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static void
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pdq_pci_attach(
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struct device * const parent,
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struct device * const self,
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void * const aux)
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{
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pdq_softc_t * const sc = (pdq_softc_t *)self;
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struct pci_attach_args * const pa = (struct pci_attach_args *) aux;
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pdq_uint32_t data;
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pci_intr_handle_t intrhandle;
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const char *intrstr;
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bus_space_tag_t iot, memt;
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bus_space_handle_t ioh, memh;
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int ioh_valid, memh_valid;
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data = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CFLT);
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if ((data & 0xFF00) < (DEFPA_LATENCY << 8)) {
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data &= ~0xFF00;
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data |= DEFPA_LATENCY << 8;
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_CFLT, data);
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}
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bcopy(sc->sc_dev.dv_xname, sc->sc_if.if_xname, IFNAMSIZ);
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sc->sc_if.if_flags = 0;
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sc->sc_if.if_softc = sc;
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ioh_valid = (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
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&iot, &ioh, NULL, NULL) == 0);
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memh_valid = (pci_mapreg_map(pa, PCI_CBMA,
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PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
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&memt, &memh, NULL, NULL) == 0);
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#if defined(DEFPA_IOMAPED)
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if (ioh_valid) {
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sc->sc_csrtag = iot;
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sc->sc_membase = ioh;
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} else if (memh_valid) {
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sc->sc_csrtag = memt;
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sc->sc_membase = memh;
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}
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#else /* defined(DEFPA_IOMAPPED) */
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if (memh_valid) {
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sc->sc_csrtag = memt;
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sc->sc_membase = memh;
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} else if (ioh_valid) {
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sc->sc_csrtag = iot;
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sc->sc_membase = ioh;
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}
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#endif /* DEFPA_IOMAPPED */
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else {
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printf(": unable to map device registers\n");
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return;
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}
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sc->sc_dmatag = pa->pa_dmat;
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/* Make sure bus mastering is enabled. */
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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pci_conf_read(pa->pa_pc, pa->pa_tag,
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PCI_COMMAND_STATUS_REG) |
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PCI_COMMAND_MASTER_ENABLE);
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sc->sc_pdq = pdq_initialize(sc->sc_csrtag, sc->sc_membase,
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sc->sc_if.if_xname, 0,
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(void *) sc, PDQ_DEFPA);
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if (sc->sc_pdq == NULL) {
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printf("%s: initialization failed\n", sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
pdq_ifattach(sc, pdq_pci_ifwatchdog);
|
|
|
|
if (pci_intr_map(pa, &intrhandle)) {
|
|
printf("%s: couldn't map interrupt\n", self->dv_xname);
|
|
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);
|
|
if (sc->sc_ih == NULL) {
|
|
printf("%s: couldn't establish interrupt", self->dv_xname);
|
|
if (intrstr != NULL)
|
|
printf(" at %s", intrstr);
|
|
printf("\n");
|
|
return;
|
|
}
|
|
|
|
sc->sc_ats = shutdownhook_establish((void (*)(void *)) pdq_hwreset, sc->sc_pdq);
|
|
if (sc->sc_ats == NULL)
|
|
printf("%s: warning: couldn't establish shutdown hook\n", self->dv_xname);
|
|
if (intrstr != NULL)
|
|
printf("%s: interrupting at %s\n", self->dv_xname, intrstr);
|
|
}
|
|
|
|
struct cfattach fpa_ca = {
|
|
sizeof(pdq_softc_t), pdq_pci_match, pdq_pci_attach
|
|
};
|
|
|
|
#endif /* __NetBSD__ */
|