dbdbd735b8
(1) make pci functions take as an argument a machine-dependent cookie, to allow more flexibility in implementation. (use of other PCI functions, etc., left unchanged.)
457 lines
10 KiB
C
457 lines
10 KiB
C
/* $NetBSD: if_le.c,v 1.40 1996/03/27 04:03:10 cgd Exp $ */
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/*-
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* Copyright (c) 1995 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its 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 THE REGENTS 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 THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93
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*/
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/syslog.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <net/if.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#endif
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#include <vm/vm.h>
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#include <machine/cpu.h>
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#include <machine/pio.h>
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#include "isa.h"
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#include "pci.h"
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#if NISA > 0
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isadmavar.h>
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#include <i386/isa/isa_machdep.h>
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#endif
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#if NPCI > 0
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#endif
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#include <dev/isa/if_levar.h>
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#include <dev/ic/am7990reg.h>
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#define LE_NEED_BUF_CONTIG
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#include <dev/ic/am7990var.h>
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char *card_type[] = {"unknown", "BICC Isolan", "NE2100", "DEPCA", "PCnet-ISA", "PCnet-PCI"};
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#define LE_SOFTC(unit) le_cd.cd_devs[unit]
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#define LE_DELAY(x) delay(x)
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int leprobe __P((struct device *, void *, void *));
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int depca_probe __P((struct le_softc *, struct isa_attach_args *));
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int ne2100_probe __P((struct le_softc *, struct isa_attach_args *));
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int bicc_probe __P((struct le_softc *, struct isa_attach_args *));
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int lance_probe __P((struct le_softc *));
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void leattach __P((struct device *, struct device *, void *));
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int leintr __P((void *));
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int leintredge __P((void *));
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void leshutdown __P((void *));
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/* XXX the following two structs should be different. */
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struct cfattach le_isa_ca = {
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sizeof(struct le_softc), leprobe, leattach
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};
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struct cfattach le_pci_ca = {
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sizeof(struct le_softc), leprobe, leattach
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};
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struct cfdriver le_cd = {
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NULL, "le", DV_IFNET
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};
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integrate void
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lewrcsr(sc, port, val)
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struct le_softc *sc;
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u_int16_t port, val;
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{
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outw(sc->sc_rap, port);
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outw(sc->sc_rdp, val);
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}
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integrate u_int16_t
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lerdcsr(sc, port)
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struct le_softc *sc;
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u_int16_t port;
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{
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u_int16_t val;
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outw(sc->sc_rap, port);
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val = inw(sc->sc_rdp);
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return (val);
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}
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int
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leprobe(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct le_softc *sc = match;
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extern struct cfdriver isa_cd, pci_cd;
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#if NISA > 0
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if (parent->dv_cfdata->cf_driver == &isa_cd) {
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struct isa_attach_args *ia = aux;
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if (bicc_probe(sc, ia))
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return (1);
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if (ne2100_probe(sc, ia))
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return (1);
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if (depca_probe(sc, ia))
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return (1);
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}
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#endif
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#if NPCI > 0
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if (parent->dv_cfdata->cf_driver == &pci_cd) {
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struct pci_attach_args *pa = aux;
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if (pa->pa_id == 0x20001022)
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return (1);
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}
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#endif
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return (0);
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}
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#if NISA > 0
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int
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depca_probe(sc, ia)
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struct le_softc *sc;
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struct isa_attach_args *ia;
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{
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int iobase = ia->ia_iobase, port;
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u_long sum, rom_sum;
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u_char x;
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int i;
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sc->sc_rap = iobase + DEPCA_RAP;
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sc->sc_rdp = iobase + DEPCA_RDP;
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sc->sc_card = DEPCA;
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if (lance_probe(sc) == 0)
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return 0;
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outb(iobase + DEPCA_CSR, DEPCA_CSR_DUM);
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/*
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* Extract the physical MAC address from the ROM.
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*
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* The address PROM is 32 bytes wide, and we access it through
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* a single I/O port. On each read, it rotates to the next
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* position. We find the ethernet address by looking for a
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* particular sequence of bytes (0xff, 0x00, 0x55, 0xaa, 0xff,
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* 0x00, 0x55, 0xaa), and then reading the next 8 bytes (the
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* ethernet address and a checksum).
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*
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* It appears that the PROM can be at one of two locations, so
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* we just try both.
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*/
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port = iobase + DEPCA_ADP;
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for (i = 0; i < 32; i++)
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if (inb(port) == 0xff && inb(port) == 0x00 &&
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inb(port) == 0x55 && inb(port) == 0xaa &&
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inb(port) == 0xff && inb(port) == 0x00 &&
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inb(port) == 0x55 && inb(port) == 0xaa)
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goto found;
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port = iobase + DEPCA_ADP + 1;
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for (i = 0; i < 32; i++)
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if (inb(port) == 0xff && inb(port) == 0x00 &&
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inb(port) == 0x55 && inb(port) == 0xaa &&
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inb(port) == 0xff && inb(port) == 0x00 &&
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inb(port) == 0x55 && inb(port) == 0xaa)
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goto found;
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printf("%s: address not found\n", sc->sc_dev.dv_xname);
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return 0;
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found:
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for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
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sc->sc_arpcom.ac_enaddr[i] = inb(port);
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#if 0
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sum =
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(sc->sc_arpcom.ac_enaddr[0] << 2) +
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(sc->sc_arpcom.ac_enaddr[1] << 10) +
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(sc->sc_arpcom.ac_enaddr[2] << 1) +
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(sc->sc_arpcom.ac_enaddr[3] << 9) +
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(sc->sc_arpcom.ac_enaddr[4] << 0) +
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(sc->sc_arpcom.ac_enaddr[5] << 8);
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sum = (sum & 0xffff) + (sum >> 16);
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sum = (sum & 0xffff) + (sum >> 16);
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rom_sum = inb(port);
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rom_sum |= inb(port) << 8;
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if (sum != rom_sum) {
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printf("%s: checksum mismatch; calculated %04x != read %04x",
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sc->sc_dev.dv_xname, sum, rom_sum);
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return 0;
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}
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#endif
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outb(iobase + DEPCA_CSR, DEPCA_CSR_NORMAL);
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ia->ia_iosize = 16;
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ia->ia_drq = DRQUNK;
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return 1;
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}
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int
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ne2100_probe(sc, ia)
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struct le_softc *sc;
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struct isa_attach_args *ia;
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{
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int iobase = ia->ia_iobase;
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int i;
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sc->sc_rap = iobase + NE2100_RAP;
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sc->sc_rdp = iobase + NE2100_RDP;
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sc->sc_card = NE2100;
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if (lance_probe(sc) == 0)
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return 0;
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/*
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* Extract the physical MAC address from the ROM.
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*/
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for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
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sc->sc_arpcom.ac_enaddr[i] = inb(iobase + i);
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ia->ia_iosize = 24;
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return 1;
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}
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int
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bicc_probe(sc, ia)
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struct le_softc *sc;
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struct isa_attach_args *ia;
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{
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int iobase = ia->ia_iobase;
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int i;
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sc->sc_rap = iobase + BICC_RAP;
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sc->sc_rdp = iobase + BICC_RDP;
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sc->sc_card = BICC;
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if (lance_probe(sc) == 0)
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return 0;
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/*
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* Extract the physical MAC address from the ROM.
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*/
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for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
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sc->sc_arpcom.ac_enaddr[i] = inb(iobase + i * 2);
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ia->ia_iosize = 16;
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return 1;
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}
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/*
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* Determine which chip is present on the card.
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*/
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int
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lance_probe(sc)
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struct le_softc *sc;
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{
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/* Stop the LANCE chip and put it in a known state. */
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lewrcsr(sc, LE_CSR0, LE_C0_STOP);
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LE_DELAY(100);
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if (lerdcsr(sc, LE_CSR0) != LE_C0_STOP)
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return 0;
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lewrcsr(sc, LE_CSR3, sc->sc_conf3);
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return 1;
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}
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#endif
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void
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leattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct le_softc *sc = (void *)self;
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extern struct cfdriver isa_cd, pci_cd;
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#if NPCI > 0
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if (parent->dv_cfdata->cf_driver == &pci_cd) {
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struct pci_attach_args *pa = aux;
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int iobase;
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if (pa->pa_id == 0x20001022) {
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int i;
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if (pci_map_io(pa->pa_tag, 0x10, &iobase))
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return;
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sc->sc_rap = iobase + NE2100_RAP;
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sc->sc_rdp = iobase + NE2100_RDP;
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sc->sc_card = PCnet_PCI;
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/*
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* Extract the physical MAC address from the ROM.
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*/
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for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
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sc->sc_arpcom.ac_enaddr[i] = inb(iobase + i);
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}
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}
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#endif
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#if NISA > 0
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if (sc->sc_card == DEPCA) {
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struct isa_attach_args *ia = aux;
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u_char *mem, val;
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int i;
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mem = sc->sc_mem = ISA_HOLE_VADDR(ia->ia_maddr);
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val = 0xff;
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for (;;) {
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for (i = 0; i < ia->ia_msize; i++)
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mem[i] = val;
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for (i = 0; i < ia->ia_msize; i++)
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if (mem[i] != val) {
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printf("%s: failed to clear memory\n",
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sc->sc_dev.dv_xname);
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return;
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}
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if (val == 0x00)
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break;
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val -= 0x55;
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}
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sc->sc_conf3 = LE_C3_ACON;
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sc->sc_addr = 0;
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sc->sc_memsize = ia->ia_msize;
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} else
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#endif
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{
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sc->sc_mem = malloc(16384, M_DEVBUF, M_NOWAIT);
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if (sc->sc_mem == 0) {
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printf("%s: couldn't allocate memory for card\n",
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sc->sc_dev.dv_xname);
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return;
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}
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sc->sc_conf3 = 0;
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sc->sc_addr = kvtop(sc->sc_mem);
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sc->sc_memsize = 16384;
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}
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sc->sc_copytodesc = copytobuf_contig;
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sc->sc_copyfromdesc = copyfrombuf_contig;
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sc->sc_copytobuf = copytobuf_contig;
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sc->sc_copyfrombuf = copyfrombuf_contig;
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sc->sc_zerobuf = zerobuf_contig;
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sc->sc_arpcom.ac_if.if_name = le_cd.cd_name;
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leconfig(sc);
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printf("%s: type %s\n", sc->sc_dev.dv_xname, card_type[sc->sc_card]);
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#if NISA > 0
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if (parent->dv_cfdata->cf_driver == &isa_cd) {
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struct isa_attach_args *ia = aux;
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if (ia->ia_drq != DRQUNK)
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isa_dmacascade(ia->ia_drq);
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sc->sc_ih = isa_intr_establish(ia->ia_irq, IST_EDGE, IPL_NET,
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leintredge, sc);
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}
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#endif
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#if NPCI > 0
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if (parent->dv_cfdata->cf_driver == &pci_cd) {
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struct pci_attach_args *pa = aux;
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pcireg_t csr;
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csr = pci_conf_read(pa->pa_bc, pa->pa_tag,
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PCI_COMMAND_STATUS_REG);
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pci_conf_write(pa->pa_bc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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csr | PCI_COMMAND_MASTER_ENABLE);
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sc->sc_ih = pci_map_int(pa->pa_tag, IPL_NET, leintr, sc);
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}
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#endif
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sc->sc_sh = shutdownhook_establish(leshutdown, sc);
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}
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void
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leshutdown(arg)
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void *arg;
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{
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struct le_softc *sc = arg;
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lestop(sc);
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}
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#if NISA > 0
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/*
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* Controller interrupt.
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*/
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leintredge(arg)
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void *arg;
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{
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if (leintr(arg) == 0)
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return (0);
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for (;;)
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if (leintr(arg) == 0)
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return (1);
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}
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#endif
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#include <dev/ic/am7990.c>
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