c5dce5e86a
v1.15 fixed driver registration bug under 3.1-STABLE. Developed by: Scott Mitchell <scott@uk.freebsd.org> Obtained from: http://www.freebsd-uk.eu.org/~scott/xe_drv/
2218 lines
56 KiB
C
2218 lines
56 KiB
C
/*-
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* Copyright (c) 1998, 1999 Scott Mitchell
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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. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $Id: if_xe.c,v 1.15 1999/03/05 12:11:40 root Exp $
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*/
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/*
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* Portions of this software were derived from Werner Koch's xirc2ps driver
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* for Linux under the terms of the following license (from v1.30 of the
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* xirc2ps driver):
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*
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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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, and the entire permission notice in its entirety,
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* including the disclaimer of warranties.
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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. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters.
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* The following cards and media are supported (Ethernet part only on the
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* multifunction CEM cards):
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* CE2 10BASE-2, 10BASE-T (I think)
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* CEM28 ditto
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* CEM33 ditto
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* CE3 10BASE-T, 100BASE-TX
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* CEM56 ditto
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* RealPort ditto
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* Some Compaq and Intel cards using the Xircom hardware are also known to
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* work. See the website for full details of supported hardware.
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*
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* <Acknowledgements to go here>
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*
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* The web page for the driver is located at:
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* http://www.dcs.qmw.ac.uk/~scott/xe_drv/
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* Check here first for new releases, bug fixes, etc.
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*
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* Please send all feedback, bug reports, patches, etc. to
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* <scott@dcs.qmw.ac.uk>. Mail with the tag "[XE]" in the subject line will
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* be automatically filed in an appropriate folder where I'm more likely to
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* see it and respond promptly.
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*/
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#define XE_DEBUG 1
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#include "xe.h"
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#include "card.h"
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#include "apm.h"
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#include "bpfilter.h"
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#if NXE > 0
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#if NCARD > 0
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#include <sys/param.h>
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#include <sys/cdefs.h>
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#include <sys/conf.h>
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#include <sys/errno.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/systm.h>
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#include <sys/uio.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_mib.h>
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#endif /* NBPFILTER > 0 */
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#include <i386/isa/isa.h>
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#include <i386/isa/isa_device.h>
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#include <i386/isa/if_xereg.h>
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#include <machine/clock.h>
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#if NAPM > 0
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#include <machine/apm_bios.h>
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#endif /* NAPM > 0 */
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#include <pccard/cardinfo.h>
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#include <pccard/cis.h>
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#include <pccard/driver.h>
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#include <pccard/slot.h>
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/*
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* One of these structures per allocated device
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*/
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struct xe_softc {
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struct arpcom arpcom;
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struct ifmedia ifmedia;
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struct callout_handle chand;
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struct ifmib_iso_8802_3 mibdata;
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struct isa_device *dev;
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struct pccard_devinfo *crd;
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struct ifnet *ifp;
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struct ifmedia *ifm;
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char *card_type; /* Card model name */
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char *vendor; /* Card manufacturer */
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int unit; /* Unit number, from dev->id_unit */
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int srev; /* Silicon revision */
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int tx_queued; /* Packets currently waiting to transmit */
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int tx_ptr; /* Last value of PTR reg on card */
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int tx_collisions; /* Collisions since last successful send */
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int tx_timeouts; /* Count of transmit timeouts */
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int autoneg_status; /* Autonegotiation progress state */
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int media; /* Private media word */
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u_char modem; /* 1 = Multifunction card with modem */
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u_char ce3; /* 1 = CE3 class (100Mbit) adapter */
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u_char cem56; /* 1 = CEM56 class (CE3 + 56Kbps modem) adapter */
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u_char phy_ok; /* 1 = MII-compliant PHY found and initialised */
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u_char gone; /* 1 = Card bailed out */
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#if NAPM > 0
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struct apmhook suspend_hook;
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struct apmhook resume_hook;
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#endif /* NAPM > 0 */
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};
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static struct xe_softc *sca[MAXSLOT];
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/*
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* MII command structure
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*/
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struct xe_mii_frame {
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u_int8_t mii_stdelim;
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u_int8_t mii_opcode;
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u_int8_t mii_phyaddr;
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u_int8_t mii_regaddr;
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u_int8_t mii_turnaround;
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u_int16_t mii_data;
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};
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/*
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* For accessing card registers
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*/
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#define XE_INB(r) inb(scp->dev->id_iobase+(r))
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#define XE_INW(r) inw(scp->dev->id_iobase+(r))
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#define XE_OUTB(r, b) outb(scp->dev->id_iobase+(r), (b))
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#define XE_OUTW(r, w) outw(scp->dev->id_iobase+(r), (w))
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#define XE_SELECT_PAGE(p) XE_OUTB(XE_PSR, (p))
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/*
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* Horrid stuff for accessing CIS tuples
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*/
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#define CARD_MAJOR 50
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#define CISTPL_BUFSIZE 512
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#define CISTPL_TYPE(tpl) tpl[0]
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#define CISTPL_LEN(tpl) tpl[2]
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#define CISTPL_DATA(tpl,pos) tpl[4 + ((pos)<<1)]
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/*
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* Media autonegotiation progress constants
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*/
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#define XE_AUTONEG_NONE 0 /* No autonegotiation in progress */
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#define XE_AUTONEG_WAITING 1 /* Waiting for transmitter to go idle */
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#define XE_AUTONEG_STARTED 2 /* Waiting for autonegotiation to complete */
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#define XE_AUTONEG_100TX 3 /* Trying to force 100baseTX link */
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#define XE_AUTONEG_FAIL 4 /* Autonegotiation failed */
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/*
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* Prototypes start here
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*/
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static int xe_probe (struct isa_device *dev);
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static int xe_card_init (struct pccard_devinfo *devi);
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static int xe_attach (struct isa_device *dev);
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static void xe_init (void *xscp);
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static void xe_start (struct ifnet *ifp);
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static int xe_ioctl (struct ifnet *ifp, u_long command, caddr_t data);
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static int xe_card_intr (struct pccard_devinfo *devi);
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static void xe_watchdog (struct ifnet *ifp);
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static int xe_media_change (struct ifnet *ifp);
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static void xe_media_status (struct ifnet *ifp, struct ifmediareq *mrp);
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static timeout_t xe_setmedia;
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static void xe_hard_reset (struct xe_softc *scp);
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static void xe_soft_reset (struct xe_softc *scp);
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static void xe_stop (struct xe_softc *scp);
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static void xe_enable_intr (struct xe_softc *scp);
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static void xe_disable_intr (struct xe_softc *scp);
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static void xe_setmulti (struct xe_softc *scp);
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static void xe_setaddrs (struct xe_softc *scp);
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static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp);
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static void xe_card_unload (struct pccard_devinfo *devi);
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/*
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* MII functions
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*/
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static void xe_mii_sync (struct xe_softc *scp);
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static int xe_mii_init (struct xe_softc *scp);
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static void xe_mii_send (struct xe_softc *scp, u_int32_t bits, int cnt);
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static int xe_mii_readreg (struct xe_softc *scp, struct xe_mii_frame *frame);
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static int xe_mii_writereg (struct xe_softc *scp, struct xe_mii_frame *frame);
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static u_int16_t xe_phy_readreg (struct xe_softc *scp, u_int16_t reg);
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static void xe_phy_writereg (struct xe_softc *scp, u_int16_t reg, u_int16_t data);
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/*
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* Debug functions
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*/
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#ifdef XE_DEBUG
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#define XE_REG_DUMP(scp) xe_reg_dump((scp))
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#define XE_MII_DUMP(scp) xe_mii_dump((scp))
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static void xe_reg_dump (struct xe_softc *scp);
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static void xe_mii_dump (struct xe_softc *scp);
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#else
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#define XE_REG_DUMP(scp)
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#define XE_MII_DUMP(scp)
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#endif
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#if NAPM > 0
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/*
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* APM hook functions
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*/
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static int xe_suspend (void *xunit);
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static int xe_resume (void *xunit);
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#endif /* NAPM > 0 */
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/*
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* PCMCIA driver hooks
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*/
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#ifdef PCCARD_MODULE
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PCCARD_MODULE(xe, xe_card_init, xe_card_unload, xe_card_intr, 0, net_imask);
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#else
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static struct pccard_device xe_info = { /* For pre 3.1-STABLE code */
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"xe",
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xe_card_init,
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xe_card_unload,
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xe_card_intr,
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0,
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&net_imask
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};
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DATA_SET(pccarddrv_set, xe_info);
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#endif /* PCCARD_MODULE */
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/*
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* ISA driver hooks. I'd like to do without these but the kernel config stuff
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* seems to require them.
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*/
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struct isa_driver xedriver = {
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xe_probe,
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xe_attach,
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"xe"
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};
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/*
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* ISA probe routine.
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* All of the supported devices are PCMCIA cards. I have no idea if it's even
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* possible to successfully probe/attach these at boot time (pccardd normally
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* does a lot of setup work) so I don't even bother trying.
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*/
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static int
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xe_probe (struct isa_device *dev) {
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bzero(sca, MAXSLOT * sizeof(sca[0]));
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return 0;
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}
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/*
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* PCMCIA probe routine.
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* Probe and identify the device. Called by the slot manager when the card is
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* inserted or the machine wakes up from suspend mode. Assmes that the slot
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* structure has been initialised already.
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*/
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static int
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xe_card_init(struct pccard_devinfo *devi)
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{
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struct xe_softc *scp;
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struct isa_device *dev;
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struct uio uios;
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struct iovec iov;
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u_char buf[CISTPL_BUFSIZE];
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u_char ver_str[CISTPL_BUFSIZE>>1];
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off_t offs;
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int unit, success, rc, i;
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unit = devi->isahd.id_unit;
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scp = sca[unit];
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dev = &devi->isahd;
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success = 0;
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#ifdef XE_DEBUG
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printf("xe: Probing for unit %d\n", unit);
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#endif
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/* Check that unit number is OK */
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if (unit > MAXSLOT) {
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printf("xe: bad unit (%d)\n", unit);
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return (ENODEV);
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}
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/* Don't attach an active device */
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if (scp && !scp->gone) {
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printf("xe: unit already attached (%d)\n", unit);
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return (EBUSY);
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}
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/* Allocate per-instance storage */
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if (!scp) {
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if ((scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT)) == NULL) {
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printf("xe%d: failed to allocage driver storage\n", unit);
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return (ENOMEM);
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}
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bzero(scp, sizeof(*scp));
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}
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/* Re-attach an existing device */
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if (scp->gone) {
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scp->gone = 0;
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return 0;
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}
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/* Grep through CIS looking for relevant tuples */
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offs = 0;
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do {
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u_int16_t vendor;
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u_int8_t rev, media, prod;
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iov.iov_base = buf;
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iov.iov_len = CISTPL_BUFSIZE;
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uios.uio_iov = &iov;
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uios.uio_iovcnt = 1;
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uios.uio_offset = offs;
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uios.uio_resid = CISTPL_BUFSIZE;
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uios.uio_segflg = UIO_SYSSPACE;
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uios.uio_rw = UIO_READ;
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uios.uio_procp = 0;
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/*
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* Read tuples one at a time into buf. Sucks, but it only happens once.
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* XXX - If the stuff we need isn't in attribute memory, or (worse yet)
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* XXX - attribute memory isn't mapped, we're FUBAR. Maybe need to do an
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* XXX - ioctl on the card device and follow links?
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*/
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if ((rc = cdevsw[CARD_MAJOR]->d_read(makedev(CARD_MAJOR, devi->slt->slotnum), &uios, 0)) == 0) {
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switch (CISTPL_TYPE(buf)) {
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case 0x15: /* Grab version string (needed to ID some weird CE2's) */
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#ifdef XE_DEBUG
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printf("xe%d: Got version string (0x15)\n", unit);
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#endif
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for (i = 0; i < CISTPL_LEN(buf); ver_str[i] = CISTPL_DATA(buf, i++));
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ver_str[i] = '\0';
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ver_str[CISTPL_BUFSIZE>>1 - 1] = CISTPL_LEN(buf);
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success++;
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break;
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case 0x20: /* Figure out what type of card we have */
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#ifdef XE_DEBUG
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printf("xe%d: Got card ID (0x20)\n", unit);
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#endif
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vendor = CISTPL_DATA(buf, 0) + (CISTPL_DATA(buf, 1) << 8);
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rev = CISTPL_DATA(buf, 2);
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media = CISTPL_DATA(buf, 3);
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prod = CISTPL_DATA(buf, 4);
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switch (vendor) { /* Get vendor ID */
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case 0x0105:
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scp->vendor = "Xircom"; break;
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case 0x0138:
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case 0x0183:
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scp->vendor = "Compaq"; break;
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case 0x0089:
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scp->vendor = "Intel"; break;
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default:
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scp->vendor = "Unknown";
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}
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if (!((prod & 0x40) && (media & 0x01))) {
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#ifdef XE_DEBUG
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printf("xe%d: Not a PCMCIA Ethernet card!\n", unit);
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#endif
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rc = ENODEV; /* Not a PCMCIA Ethernet device */
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}
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else {
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if (media & 0x10) { /* Ethernet/modem cards */
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#ifdef XE_DEBUG
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printf("xe%d: Card is Ethernet/modem combo\n", unit);
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#endif
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scp->modem = 1;
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switch (prod & 0x0f) {
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case 1:
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scp->card_type = "CEM"; break;
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case 2:
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scp->card_type = "CEM2"; break;
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case 3:
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scp->card_type = "CEM3"; break;
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case 4:
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scp->card_type = "CEM33"; break;
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case 5:
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scp->ce3 = 1;
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scp->card_type = "CEM56M"; break;
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case 6:
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case 7: /* Some kind of RealPort card */
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scp->ce3 = 1;
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scp->cem56 = 1;
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scp->card_type = "CEM56"; break;
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default:
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rc = ENODEV;
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}
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}
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else { /* Ethernet-only cards */
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#ifdef XE_DEBUG
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printf("xe%d: Card is Ethernet only\n", unit);
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#endif
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switch (prod & 0x0f) {
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case 1:
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scp->card_type = "CE"; break;
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case 2:
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scp->card_type = "CE2"; break;
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case 3:
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scp->ce3 = 1;
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scp->card_type = "CE3"; break;
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default:
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rc = ENODEV;
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}
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}
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}
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success++;
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break;
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|
|
case 0x22: /* Get MAC address */
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Got MAC address (0x22)\n", unit);
|
|
#endif
|
|
if ((CISTPL_LEN(buf) == 8) &&
|
|
(CISTPL_DATA(buf, 0) == 0x04) &&
|
|
(CISTPL_DATA(buf, 1) == ETHER_ADDR_LEN)) {
|
|
for (i = 0; i < ETHER_ADDR_LEN; scp->arpcom.ac_enaddr[i] = CISTPL_DATA(buf, i+2), i++);
|
|
}
|
|
success++;
|
|
break;
|
|
default:
|
|
}
|
|
}
|
|
|
|
/* Skip to next tuple */
|
|
offs += ((CISTPL_LEN(buf) + 2) << 1);
|
|
|
|
} while ((CISTPL_TYPE(buf) != 0xff) && (CISTPL_LEN(buf) != 0xff) && (rc == 0));
|
|
|
|
|
|
/* Die now if something went wrong above */
|
|
if ((rc != 0) || (success < 3)) {
|
|
free(scp, M_DEVBUF);
|
|
return rc;
|
|
}
|
|
|
|
/* Check for certain strange CE2's that look like CE's */
|
|
if (strcmp(scp->card_type, "CE") == 0) {
|
|
u_char *str = ver_str;
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Checking for weird CE2 string\n", unit);
|
|
#endif
|
|
str += strlen(str) + 1; /* Skip forward to 3rd version string */
|
|
str += strlen(str) + 1;
|
|
str += strlen(str) + 1;
|
|
for (i = 0; i < strlen(str) - 2; i++) {
|
|
if (bcmp(&str[i], "CE2", 3) ==0) { /* Look for "CE2" string */
|
|
scp->card_type = "CE2";
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Reject unsupported cards */
|
|
if (strcmp(scp->card_type, "CE") == 0 || strcmp(scp->card_type, "CEM") == 0) {
|
|
printf("xe%d: Sorry, your %s card is not supported :(\n", unit, scp->card_type);
|
|
free(scp, M_DEVBUF);
|
|
return ENODEV;
|
|
}
|
|
|
|
/* Fill in some private data */
|
|
sca[unit] = scp;
|
|
scp->dev = &devi->isahd;
|
|
scp->crd = devi;
|
|
scp->ifp = &scp->arpcom.ac_if;
|
|
scp->ifm = &scp->ifmedia;
|
|
scp->unit = unit;
|
|
scp->autoneg_status = 0;
|
|
|
|
/* Attempt to attach the device */
|
|
if (!xe_attach(scp->dev)) {
|
|
sca[unit] = 0;
|
|
free(scp, M_DEVBUF);
|
|
return ENXIO;
|
|
}
|
|
|
|
#if NAPM > 0
|
|
/* Establish APM hooks once device attached */
|
|
scp->suspend_hook.ah_name = "xe_suspend";
|
|
scp->suspend_hook.ah_fun = xe_suspend;
|
|
scp->suspend_hook.ah_arg = (void *)unit;
|
|
scp->suspend_hook.ah_order = APM_MIN_ORDER;
|
|
apm_hook_establish(APM_HOOK_SUSPEND, &scp->suspend_hook);
|
|
scp->resume_hook.ah_name = "xe_resume";
|
|
scp->resume_hook.ah_fun = xe_resume;
|
|
scp->resume_hook.ah_arg = (void *)unit;
|
|
scp->resume_hook.ah_order = APM_MIN_ORDER;
|
|
apm_hook_establish(APM_HOOK_RESUME, &scp->resume_hook);
|
|
#endif /* NAPM > 0 */
|
|
|
|
/* Success */
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Attach a device (called when xe_card_init succeeds). Assume that the probe
|
|
* routine has set up the softc structure correctly and that we can trust the
|
|
* unit number.
|
|
*/
|
|
static int
|
|
xe_attach (struct isa_device *dev) {
|
|
struct xe_softc *scp = sca[dev->id_unit];
|
|
int i;
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: attach\n", scp->unit);
|
|
#endif
|
|
|
|
/* Initialise the ifnet structure */
|
|
if (!scp->ifp->if_name) {
|
|
scp->ifp->if_softc = scp;
|
|
scp->ifp->if_name = "xe";
|
|
scp->ifp->if_unit = scp->unit;
|
|
scp->ifp->if_timer = 0;
|
|
scp->ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
|
|
scp->ifp->if_linkmib = &scp->mibdata;
|
|
scp->ifp->if_linkmiblen = sizeof scp->mibdata;
|
|
scp->ifp->if_output = ether_output;
|
|
scp->ifp->if_start = xe_start;
|
|
scp->ifp->if_ioctl = xe_ioctl;
|
|
scp->ifp->if_watchdog = xe_watchdog;
|
|
scp->ifp->if_init = xe_init;
|
|
scp->ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
|
|
}
|
|
|
|
/* Initialise the ifmedia structure */
|
|
ifmedia_init(scp->ifm, 0, xe_media_change, xe_media_status);
|
|
callout_handle_init(&scp->chand);
|
|
|
|
/*
|
|
* Fill in supported media types. Some cards _do_ support full duplex
|
|
* operation, but this driver doesn't, yet. Therefore we leave those modes
|
|
* out of the list. We support some form of autoselection in all cases.
|
|
*/
|
|
if (scp->ce3) {
|
|
ifmedia_add(scp->ifm, IFM_ETHER|IFM_100_TX, 0, NULL);
|
|
ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL);
|
|
}
|
|
else {
|
|
ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL);
|
|
ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_2, 0, NULL);
|
|
}
|
|
ifmedia_add(scp->ifm, IFM_ETHER|IFM_AUTO, 0, NULL);
|
|
|
|
/* Default is to autoselect best supported media type */
|
|
ifmedia_set(scp->ifm, IFM_ETHER|IFM_AUTO);
|
|
|
|
/* Print some useful information */
|
|
printf("\nxe%d: %s %s%s%s\n",
|
|
scp->unit,
|
|
scp->vendor,
|
|
scp->card_type,
|
|
scp->ce3 ? ", 100Mbps capable" : "",
|
|
scp->cem56 ? ", with modem" : "");
|
|
printf("xe%d: Ethernet address %02x", scp->unit, scp->arpcom.ac_enaddr[0]);
|
|
for (i = 1; i < ETHER_ADDR_LEN; i++) {
|
|
printf(":%02x", scp->arpcom.ac_enaddr[i]);
|
|
}
|
|
printf("\n");
|
|
|
|
/* Attach the interface */
|
|
if_attach(scp->ifp);
|
|
ether_ifattach(scp->ifp);
|
|
|
|
#if NBPFILTER > 0
|
|
/* If BPF is in the kernel, call the attach for it */
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: BPF listener attached\n", scp->unit);
|
|
#endif
|
|
bpfattach(scp->ifp, DLT_EN10MB, sizeof(struct ether_header));
|
|
#endif
|
|
|
|
/* Done */
|
|
return 1;
|
|
}
|
|
|
|
|
|
/*
|
|
* Initialize device. Completes the reset procedure on the card and starts
|
|
* output. If there's an autonegotiation in progress we DON'T do anything;
|
|
* the media selection code will call us again when it's done.
|
|
*/
|
|
static void
|
|
xe_init(void *xscp) {
|
|
struct xe_softc *scp = xscp;
|
|
int s;
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: init\n", scp->unit);
|
|
#endif
|
|
|
|
if (scp->gone) return;
|
|
|
|
if (TAILQ_EMPTY(&scp->ifp->if_addrhead)) return;
|
|
|
|
/* Reset transmitter flags */
|
|
scp->tx_queued = 0;
|
|
scp->tx_ptr = 0;
|
|
scp->tx_collisions = 0;
|
|
scp->ifp->if_timer = 0;
|
|
|
|
s = splimp();
|
|
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC0, 0x20); /* Disable source insertion (WTF is that?) */
|
|
|
|
/*
|
|
* Set the 'local memory dividing line' -- splits the 32K card memory into
|
|
* 8K for transmit buffers and 24K for receive. This is done automatically
|
|
* on newer revision cards.
|
|
*/
|
|
if (scp->srev != 1) {
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTW(XE_RBS, 0x2000);
|
|
}
|
|
|
|
/* Set up multicast addresses */
|
|
xe_setmulti(scp);
|
|
|
|
/* Fix the data offset register -- reset leaves it off-by-one */
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTW(XE_DOR, 0x2000);
|
|
|
|
/*
|
|
* Set MAC interrupt masks and clear status regs. The bit names are direct
|
|
* from the Linux code; I have no idea what most of them do.
|
|
*/
|
|
XE_SELECT_PAGE(0x40); /* Bit 7..0 */
|
|
XE_OUTB(XE_RXM0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
|
|
XE_OUTB(XE_TXM0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
|
|
XE_OUTB(XE_TXM1, 0xb0); /* rsv, rsv, PTD, EXT, rsv, rsv, rsv, rsv */
|
|
XE_OUTB(XE_RXS0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
|
|
XE_OUTB(XE_TXS0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
|
|
XE_OUTB(XE_TXS1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
|
|
|
|
/*
|
|
* Check for an in-progress autonegotiation. If one is active, just set
|
|
* IFF_RUNNING and return. The media selection code will call us again when
|
|
* it's done.
|
|
*/
|
|
if (scp->autoneg_status) {
|
|
scp->ifp->if_flags |= IFF_RUNNING;
|
|
}
|
|
else {
|
|
/* Enable receiver, put MAC online */
|
|
XE_SELECT_PAGE(0x40);
|
|
XE_OUTB(XE_OCR, XE_OCR_RX_ENABLE|XE_OCR_ONLINE);
|
|
|
|
/* Set up IMR, enable interrupts */
|
|
xe_enable_intr(scp);
|
|
|
|
/* Attempt to start output */
|
|
scp->ifp->if_flags |= IFF_RUNNING;
|
|
scp->ifp->if_flags &= ~IFF_OACTIVE;
|
|
xe_start(scp->ifp);
|
|
}
|
|
|
|
(void)splx(s);
|
|
}
|
|
|
|
|
|
/*
|
|
* Start output on interface. We make two assumptions here:
|
|
* 1) that the current priority is set to splimp _before_ this code
|
|
* is called *and* is returned to the appropriate priority after
|
|
* return
|
|
* 2) that the IFF_OACTIVE flag is checked before this code is called
|
|
* (i.e. that the output part of the interface is idle)
|
|
*/
|
|
static void
|
|
xe_start(struct ifnet *ifp) {
|
|
struct xe_softc *scp = ifp->if_softc;
|
|
struct mbuf *mbp;
|
|
|
|
if (scp->gone) return;
|
|
|
|
/*
|
|
* Loop while there are packets to be sent, and space to send them.
|
|
*/
|
|
while (1) {
|
|
IF_DEQUEUE(&ifp->if_snd, mbp); /* Suck a packet off the send queue */
|
|
|
|
if (mbp == NULL) {
|
|
/*
|
|
* We are using the !OACTIVE flag to indicate to the outside world that
|
|
* we can accept an additional packet rather than that the transmitter
|
|
* is _actually_ active. Indeed, the transmitter may be active, but if
|
|
* we haven't filled all the buffers with data then we still want to
|
|
* accept more.
|
|
*/
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
return;
|
|
}
|
|
|
|
if (xe_pio_write_packet(scp, mbp) != 0) {
|
|
IF_PREPEND(&ifp->if_snd, mbp); /* Push the packet back onto the queue */
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
return;
|
|
}
|
|
|
|
#if NBPFILTER > 0
|
|
/* Tap off here if there is a bpf listener */
|
|
if (ifp->if_bpf) {
|
|
#if XE_DEBUG > 1
|
|
printf("xe%d: sending output packet to BPF\n", scp->unit);
|
|
#endif
|
|
bpf_mtap(ifp, mbp);
|
|
}
|
|
#endif /* NBPFILTER > 0 */
|
|
|
|
ifp->if_timer = 5; /* In case we don't hear from the card again */
|
|
scp->tx_queued++;
|
|
|
|
m_freem(mbp);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Process an ioctl request. Adapted from the ed driver.
|
|
*/
|
|
static int
|
|
xe_ioctl (register struct ifnet *ifp, u_long command, caddr_t data) {
|
|
struct xe_softc *scp;
|
|
int s, error;
|
|
|
|
scp = ifp->if_softc;
|
|
error = 0;
|
|
|
|
if (scp->gone) {
|
|
return ENXIO;
|
|
}
|
|
|
|
s = splimp();
|
|
|
|
switch (command) {
|
|
|
|
case SIOCSIFADDR:
|
|
case SIOCGIFADDR:
|
|
case SIOCSIFMTU:
|
|
error = ether_ioctl(ifp, command, data);
|
|
break;
|
|
|
|
case SIOCSIFFLAGS:
|
|
/*
|
|
* If the interface is marked up and stopped, then start it. If it is
|
|
* marked down and running, then stop it.
|
|
*/
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (!(ifp->if_flags & IFF_RUNNING)) {
|
|
xe_hard_reset(scp);
|
|
xe_setmedia(scp);
|
|
xe_init(scp);
|
|
}
|
|
}
|
|
else {
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
xe_stop(scp);
|
|
}
|
|
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
/*
|
|
* Multicast list has (maybe) changed; set the hardware filter
|
|
* accordingly. This also serves to deal with promiscuous mode if we have
|
|
* a BPF listener active.
|
|
*/
|
|
xe_setmulti(scp);
|
|
error = 0;
|
|
break;
|
|
|
|
case SIOCSIFMEDIA:
|
|
case SIOCGIFMEDIA:
|
|
/*
|
|
* Someone wants to get/set media options.
|
|
*/
|
|
error = ifmedia_ioctl(ifp, (struct ifreq *)data, &scp->ifmedia, command);
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
}
|
|
|
|
(void)splx(s);
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
/*
|
|
* Card interrupt handler: should return true if the interrupt was for us, in
|
|
* case we are sharing our IRQ line with other devices (this will probably be
|
|
* the case for multifunction cards).
|
|
*
|
|
* This function is probably more complicated than it needs to be, as it
|
|
* attempts to deal with the case where multiple packets get sent between
|
|
* interrupts. This is especially annoying when working out the collision
|
|
* stats. Not sure whether this case ever really happens or not (maybe on a
|
|
* slow/heavily loaded machine?) so it's probably best to leave this like it
|
|
* is.
|
|
*
|
|
* Note that the crappy PIO used to get packets on and off the card means that
|
|
* you will spend a lot of time in this routine -- I can get my P150 to spend
|
|
* 90% of its time servicing interrupts if I really hammer the network. Could
|
|
* fix this, but then you'd start dropping/losing packets. The moral of this
|
|
* story? If you want good network performance _and_ some cycles left over to
|
|
* get your work done, don't buy a Xircom card. Or convince them to tell me
|
|
* how to do memory-mapped I/O :)
|
|
*/
|
|
static int
|
|
xe_card_intr(struct pccard_devinfo *devi) {
|
|
struct xe_softc *scp;
|
|
struct ifnet *ifp;
|
|
int unit, result;
|
|
u_int16_t rx_bytes, rxs, txs;
|
|
u_int8_t psr, isr, esr, rsr;
|
|
|
|
unit = devi->isahd.id_unit;
|
|
scp = sca[unit];
|
|
ifp = &scp->arpcom.ac_if;
|
|
rx_bytes = 0; /* Bytes received on this interrupt */
|
|
result = 0; /* Set true if the interrupt is for us */
|
|
|
|
if (scp->gone)
|
|
return 0;
|
|
|
|
if (scp->ce3) {
|
|
XE_OUTB(XE_CR, 0); /* Disable interrupts */
|
|
}
|
|
|
|
psr = XE_INB(XE_PSR); /* Stash the current register page */
|
|
|
|
/*
|
|
* Read ISR to see what caused this interrupt. Note that this clears the
|
|
* ISR on CE2 type cards.
|
|
*/
|
|
if ((isr = XE_INB(XE_ISR)) && isr != 0xff) {
|
|
|
|
result = 1; /* This device did generate an int */
|
|
esr = XE_INB(XE_ESR); /* Read the other status registers */
|
|
XE_SELECT_PAGE(0x40);
|
|
rxs = XE_INB(XE_RXS0);
|
|
XE_OUTB(XE_RXS0, ~rxs & 0xff);
|
|
txs = XE_INB(XE_TXS0);
|
|
txs |= XE_INB(XE_TXS1) << 8;
|
|
XE_OUTB(XE_TXS0, 0);
|
|
XE_OUTB(XE_TXS1, 0);
|
|
XE_SELECT_PAGE(0);
|
|
|
|
#if XE_DEBUG > 3
|
|
printf("xe%d: ISR=%#2.2x ESR=%#2.2x RXS=%#2.2x TXS=%#4.4x\n", unit, isr, esr, rxs, txs);
|
|
#endif
|
|
|
|
/*
|
|
* Handle transmit interrupts
|
|
*/
|
|
if (isr & XE_ISR_TX_PACKET) {
|
|
u_int8_t new_ptr, sent;
|
|
|
|
if ((new_ptr = XE_INB(XE_PTR)) < scp->tx_ptr) /* Update packet count */
|
|
sent = (0xff - scp->tx_ptr) + new_ptr; /* PTR rolled over */
|
|
else
|
|
sent = new_ptr - scp->tx_ptr;
|
|
|
|
if (sent > 0) { /* Packets sent since last interrupt */
|
|
scp->tx_ptr = new_ptr;
|
|
scp->tx_queued -= sent;
|
|
ifp->if_opackets += sent;
|
|
ifp->if_collisions += scp->tx_collisions;
|
|
|
|
/*
|
|
* Collision stats are a PITA. If multiples frames have been sent, we
|
|
* distribute any outstanding collision count equally amongst them.
|
|
* However, if we're missing interrupts we're quite likely to also
|
|
* miss some collisions; thus the total count will be off anyway.
|
|
* Likewise, if we miss a frame dropped due to excessive collisions
|
|
* any outstanding collisions count will be held against the next
|
|
* frame to be successfully sent. Hopefully it averages out in the
|
|
* end!
|
|
* XXX - This will screw up if tx_collisions/sent > 14.
|
|
*/
|
|
switch (scp->tx_collisions) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
scp->mibdata.dot3StatsSingleCollisionFrames++;
|
|
scp->mibdata.dot3StatsCollFrequencies[0]++;
|
|
break;
|
|
default:
|
|
if (sent == 1) {
|
|
scp->mibdata.dot3StatsMultipleCollisionFrames++;
|
|
scp->mibdata.dot3StatsCollFrequencies[scp->tx_collisions-1]++;
|
|
}
|
|
else { /* Distribute across multiple frames */
|
|
scp->mibdata.dot3StatsMultipleCollisionFrames += sent;
|
|
scp->mibdata.
|
|
dot3StatsCollFrequencies[scp->tx_collisions/sent] += sent - scp->tx_collisions%sent;
|
|
scp->mibdata.
|
|
dot3StatsCollFrequencies[scp->tx_collisions/sent + 1] += scp->tx_collisions%sent;
|
|
}
|
|
}
|
|
scp->tx_collisions = 0;
|
|
}
|
|
ifp->if_timer = 0;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
}
|
|
if (txs & 0x0002) { /* Excessive collisions (packet dropped) */
|
|
ifp->if_collisions += 16;
|
|
ifp->if_oerrors++;
|
|
scp->tx_collisions = 0;
|
|
scp->mibdata.dot3StatsExcessiveCollisions++;
|
|
scp->mibdata.dot3StatsMultipleCollisionFrames++;
|
|
scp->mibdata.dot3StatsCollFrequencies[15]++;
|
|
XE_OUTB(XE_CR, XE_CR_RESTART_TX);
|
|
}
|
|
if (txs & 0x0040) /* Transmit aborted -- probably collisions */
|
|
scp->tx_collisions++;
|
|
|
|
|
|
/*
|
|
* Handle receive interrupts
|
|
*/
|
|
while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PKT_RX) {
|
|
|
|
if ((rsr = XE_INB(XE_RSR)) & XE_RSR_RX_OK) {
|
|
struct ether_header *ehp;
|
|
struct mbuf *mbp;
|
|
u_int16_t len;
|
|
|
|
len = XE_INW(XE_RBC);
|
|
|
|
if (len == 0)
|
|
continue;
|
|
|
|
#if 0
|
|
/*
|
|
* Limit the amount of time we spend in this loop, dropping packets if
|
|
* necessary. The Linux code does this with considerably more
|
|
* finesse, adjusting the threshold dynamically.
|
|
*/
|
|
if ((rx_bytes += len) > 22000) {
|
|
ifp->if_iqdrops++;
|
|
scp->mibData.dot3StatsMissedFrames++;
|
|
XE_OUTW(XE_DOR, 0x8000);
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
if (len & 0x01)
|
|
len++;
|
|
|
|
MGETHDR(mbp, M_DONTWAIT, MT_DATA); /* Allocate a header mbuf */
|
|
if (mbp != NULL) {
|
|
mbp->m_pkthdr.rcvif = ifp;
|
|
mbp->m_pkthdr.len = mbp->m_len = len;
|
|
|
|
/*
|
|
* If the mbuf header isn't big enough for the packet, attach an
|
|
* mbuf cluster to hold it. The +2 is to allow for the nasty little
|
|
* alignment hack below.
|
|
*/
|
|
if (len + 2 > MHLEN) {
|
|
MCLGET(mbp, M_DONTWAIT);
|
|
if ((mbp->m_flags & M_EXT) == 0) {
|
|
m_freem(mbp);
|
|
mbp = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mbp != NULL) {
|
|
/*
|
|
* The Ethernet header is 14 bytes long; thus the actual packet data
|
|
* won't be 32-bit aligned when it's dumped into the mbuf. We
|
|
* offset everything by 2 bytes to fix this. Apparently the
|
|
* alignment is important for NFS, damn its eyes.
|
|
*/
|
|
mbp->m_data += 2;
|
|
ehp = mtod(mbp, struct ether_header *);
|
|
|
|
/*
|
|
* Now get the packet, including the Ethernet header and trailer (?)
|
|
* We use programmed I/O, because we don't know how to do shared
|
|
* memory with these cards. So yes, it's real slow, and heavy on
|
|
* the interrupts (CPU on my P150 maxed out at ~950KBps incoming).
|
|
*/
|
|
if (scp->srev == 0) { /* Workaround a bug in old cards */
|
|
u_short rhs;
|
|
|
|
XE_SELECT_PAGE(5);
|
|
rhs = XE_INW(XE_RHS);
|
|
XE_SELECT_PAGE(0);
|
|
|
|
rhs += 3; /* Skip control info */
|
|
|
|
if (rhs >= 0x8000)
|
|
rhs = 0;
|
|
|
|
if (rhs + len > 0x8000) {
|
|
int i;
|
|
|
|
/*
|
|
* XXX - this i-- seems very wrong, but it's what the Linux guys
|
|
* XXX - do. Need someone with an old CE2 to test this for me.
|
|
*/
|
|
for (i = 0; i < len; i--, rhs++) {
|
|
((char *)ehp)[i] = XE_INB(XE_EDP);
|
|
if (rhs = 0x8000) {
|
|
rhs = 0;
|
|
i--;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1);
|
|
}
|
|
else
|
|
insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1);
|
|
|
|
#if NBPFILTER > 0
|
|
/*
|
|
* Check if there's a BPF listener on this interface. If so, hand
|
|
* off the raw packet to bpf.
|
|
*/
|
|
if (ifp->if_bpf) {
|
|
#if XE_DEBUG > 1
|
|
printf("xe%d: passing input packet to BPF\n", scp->unit);
|
|
#endif
|
|
bpf_mtap(ifp, mbp);
|
|
|
|
/*
|
|
* Note that the interface cannot be in promiscuous mode if there
|
|
* are no BPF listeners. And if we are in promiscuous mode, we
|
|
* have to check if this packet is really ours.
|
|
*/
|
|
if ((ifp->if_flags & IFF_PROMISC) &&
|
|
bcmp(ehp->ether_dhost, scp->arpcom.ac_enaddr, sizeof(ehp->ether_dhost)) != 0 &&
|
|
(rsr & XE_RSR_PHYS_PKT)) {
|
|
m_freem(mbp);
|
|
mbp = NULL;
|
|
}
|
|
}
|
|
#endif /* NBPFILTER > 0 */
|
|
|
|
if (mbp != NULL) {
|
|
mbp->m_pkthdr.len = mbp->m_len = len - ETHER_HDR_LEN;
|
|
mbp->m_data += ETHER_HDR_LEN; /* Strip off Ethernet header */
|
|
ether_input(ifp, ehp, mbp); /* Send the packet on its way */
|
|
ifp->if_ipackets++; /* Success! */
|
|
XE_OUTW(XE_DOR, 0x8000); /* skip_rx_packet command */
|
|
}
|
|
}
|
|
}
|
|
else if (rsr & XE_RSR_LONG_PKT) { /* Packet length >1518 bytes */
|
|
scp->mibdata.dot3StatsFrameTooLongs++;
|
|
ifp->if_ierrors++;
|
|
}
|
|
else if (rsr & XE_RSR_CRC_ERR) { /* Bad checksum on packet */
|
|
scp->mibdata.dot3StatsFCSErrors++;
|
|
ifp->if_ierrors++;
|
|
}
|
|
else if (rsr & XE_RSR_ALIGN_ERR) { /* Packet alignment error */
|
|
scp->mibdata.dot3StatsAlignmentErrors++;
|
|
ifp->if_ierrors++;
|
|
}
|
|
}
|
|
if (rxs & 0x10) { /* Receiver overrun */
|
|
scp->mibdata.dot3StatsInternalMacReceiveErrors++;
|
|
ifp->if_ierrors++;
|
|
XE_OUTB(XE_CR, XE_CR_CLEAR_OVERRUN);
|
|
}
|
|
}
|
|
|
|
XE_SELECT_PAGE(psr); /* Restore saved page */
|
|
XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Re-enable interrupts */
|
|
|
|
/* XXX - Maybe force an int here, instead of dropping packets? */
|
|
/* XXX - XE_OUTB(XE_CR, XE_CR_ENABLE_INTR|XE_CE_FORCE_INTR); */
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/*
|
|
* Device timeout/watchdog routine. Called automatically if we queue a packet
|
|
* for transmission but don't get an interrupt within a specified timeout
|
|
* (usually 5 seconds). When this happens we assume the worst and reset the
|
|
* card.
|
|
*/
|
|
static void
|
|
xe_watchdog(struct ifnet *ifp) {
|
|
struct xe_softc *scp = ifp->if_softc;
|
|
|
|
if (scp->gone) return;
|
|
|
|
printf("xe%d: watchdog timeout; resetting card\n", scp->unit);
|
|
scp->tx_timeouts++;
|
|
ifp->if_oerrors += scp->tx_queued;
|
|
xe_stop(scp);
|
|
xe_hard_reset(scp);
|
|
xe_setmedia(scp);
|
|
xe_init(scp);
|
|
}
|
|
|
|
|
|
/*
|
|
* Change media selection.
|
|
*/
|
|
static int
|
|
xe_media_change(struct ifnet *ifp) {
|
|
struct xe_softc *scp = ifp->if_softc;
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: media_change\n", ifp->if_unit);
|
|
#endif
|
|
|
|
if (IFM_TYPE(scp->ifm->ifm_media) != IFM_ETHER)
|
|
return(EINVAL);
|
|
|
|
/*
|
|
* Some card/media combos aren't always possible -- filter those out here.
|
|
*/
|
|
if ((IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_AUTO ||
|
|
IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_100_TX) && !scp->phy_ok)
|
|
return (EINVAL);
|
|
|
|
xe_setmedia(scp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Return current media selection.
|
|
*/
|
|
static void
|
|
xe_media_status(struct ifnet *ifp, struct ifmediareq *mrp) {
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: media_status\n", ifp->if_unit);
|
|
#endif
|
|
|
|
mrp->ifm_active = ((struct xe_softc *)ifp->if_softc)->media;
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* Select active media.
|
|
*/
|
|
static void xe_setmedia(void *xscp) {
|
|
struct xe_softc *scp = xscp;
|
|
u_int16_t bmcr, bmsr, anar, lpar, aner;
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: setmedia\n", scp->unit);
|
|
#endif
|
|
|
|
/* Cancel any pending timeout */
|
|
untimeout(xe_setmedia, scp, scp->chand);
|
|
xe_disable_intr(scp);
|
|
|
|
/* Select media */
|
|
scp->media = IFM_ETHER;
|
|
switch (IFM_SUBTYPE(scp->ifm->ifm_media)) {
|
|
|
|
case IFM_AUTO: /* Autoselect media */
|
|
scp->media = IFM_ETHER|IFM_AUTO;
|
|
|
|
/*
|
|
* Autoselection is really awful. It goes something like this:
|
|
*
|
|
* Wait until the transmitter goes idle (2sec timeout).
|
|
* Reset card
|
|
* IF a 100Mbit PHY exists
|
|
* Start NWAY autonegotiation (3.5sec timeout)
|
|
* IF that succeeds
|
|
* Select 100baseTX or 10baseT, whichever was detected
|
|
* ELSE
|
|
* Reset card
|
|
* IF a 100Mbit PHY exists
|
|
* Try to force a 100baseTX link (3sec timeout)
|
|
* IF that succeeds
|
|
* Select 100baseTX
|
|
* ELSE
|
|
* Disable the PHY
|
|
* ENDIF
|
|
* ENDIF
|
|
* ENDIF
|
|
* ENDIF
|
|
* IF nothing selected so far
|
|
* IF a 100Mbit PHY exists
|
|
* Select 10baseT
|
|
* ELSE
|
|
* Select 10baseT or 10base2, whichever is connected
|
|
* ENDIF
|
|
* ENDIF
|
|
*/
|
|
switch (scp->autoneg_status) {
|
|
|
|
case XE_AUTONEG_NONE:
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Waiting for idle transmitter\n", scp->unit);
|
|
#endif
|
|
scp->arpcom.ac_if.if_flags |= IFF_OACTIVE;
|
|
scp->autoneg_status = XE_AUTONEG_WAITING;
|
|
scp->chand = timeout(xe_setmedia, scp, hz * 2);
|
|
return;
|
|
|
|
case XE_AUTONEG_WAITING:
|
|
xe_soft_reset(scp);
|
|
if (scp->phy_ok) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Starting autonegotiation\n", scp->unit);
|
|
#endif
|
|
bmcr = xe_phy_readreg(scp, PHY_BMCR);
|
|
bmcr &= ~(PHY_BMCR_AUTONEGENBL);
|
|
xe_phy_writereg(scp, PHY_BMCR, bmcr);
|
|
anar = xe_phy_readreg(scp, PHY_ANAR);
|
|
anar &= ~(PHY_ANAR_100BT4|PHY_ANAR_100BTXFULL|PHY_ANAR_10BTFULL);
|
|
anar |= PHY_ANAR_100BTXHALF|PHY_ANAR_10BTHALF;
|
|
xe_phy_writereg(scp, PHY_ANAR, anar);
|
|
bmcr |= PHY_BMCR_AUTONEGENBL|PHY_BMCR_AUTONEGRSTR;
|
|
xe_phy_writereg(scp, PHY_BMCR, bmcr);
|
|
scp->autoneg_status = XE_AUTONEG_STARTED;
|
|
scp->chand = timeout(xe_setmedia, scp, hz * 7/2);
|
|
return;
|
|
}
|
|
else {
|
|
scp->autoneg_status = XE_AUTONEG_FAIL;
|
|
}
|
|
break;
|
|
|
|
case XE_AUTONEG_STARTED:
|
|
bmsr = xe_phy_readreg(scp, PHY_BMSR);
|
|
lpar = xe_phy_readreg(scp, PHY_LPAR);
|
|
if (bmsr & (PHY_BMSR_AUTONEGCOMP|PHY_BMSR_LINKSTAT)) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Autonegotiation complete!\n", scp->unit);
|
|
#endif
|
|
/*
|
|
* XXX - Shouldn't have to do this, but (on my hub at least) the
|
|
* XXX - transmitter won't work after a successful autoneg. So we see
|
|
* XXX - what the negotiation result was and force that mode. I'm
|
|
* XXX - sure there is an easy fix for this.
|
|
*/
|
|
if (lpar & PHY_LPAR_100BTXHALF) {
|
|
xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL);
|
|
XE_MII_DUMP(scp);
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
|
|
scp->media = IFM_ETHER|IFM_100_TX;
|
|
scp->autoneg_status = XE_AUTONEG_NONE;
|
|
}
|
|
else {
|
|
xe_phy_writereg(scp, PHY_BMCR, 0x0000);
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY? */
|
|
scp->autoneg_status = XE_AUTONEG_FAIL;
|
|
}
|
|
}
|
|
else {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Autonegotiation failed; trying 100baseTX\n", scp->unit);
|
|
#endif
|
|
XE_MII_DUMP(scp);
|
|
xe_soft_reset(scp);
|
|
if (scp->phy_ok) {
|
|
xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL);
|
|
scp->autoneg_status = XE_AUTONEG_100TX;
|
|
scp->chand = timeout(xe_setmedia, scp, hz * 3);
|
|
return;
|
|
}
|
|
else {
|
|
scp->autoneg_status = XE_AUTONEG_FAIL;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case XE_AUTONEG_100TX:
|
|
(void)xe_phy_readreg(scp, PHY_BMSR);
|
|
bmsr = xe_phy_readreg(scp, PHY_BMSR);
|
|
if (bmsr & PHY_BMSR_LINKSTAT) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Got 100baseTX link!\n", scp->unit);
|
|
#endif
|
|
XE_MII_DUMP(scp);
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
|
|
scp->media = IFM_ETHER|IFM_100_TX;
|
|
scp->autoneg_status = XE_AUTONEG_NONE;
|
|
}
|
|
else {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Autonegotiation failed; disabling PHY\n", scp->unit);
|
|
#endif
|
|
XE_MII_DUMP(scp);
|
|
xe_phy_writereg(scp, PHY_BMCR, 0x0000);
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY? */
|
|
scp->autoneg_status = XE_AUTONEG_FAIL;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* If we got down here _and_ autoneg_status is XE_AUTONEG_FAIL, then
|
|
* either autonegotiation failed, or never got started to begin with. In
|
|
* either case, select a suitable 10Mbit media and hope it works. We
|
|
* don't need to reset the card again, since it will have been done
|
|
* already by the big switch above.
|
|
*/
|
|
if (scp->autoneg_status == XE_AUTONEG_FAIL) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Selecting 10baseX\n", scp->unit);
|
|
#endif
|
|
if (scp->ce3) {
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0x80);
|
|
scp->media = IFM_ETHER|IFM_10_T;
|
|
scp->autoneg_status = XE_AUTONEG_NONE;
|
|
}
|
|
else {
|
|
XE_SELECT_PAGE(4);
|
|
XE_OUTB(XE_GPR0, 4);
|
|
DELAY(50000);
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? 0x80 : 0xc0);
|
|
scp->media = IFM_ETHER|((XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? IFM_10_T : IFM_10_2);
|
|
scp->autoneg_status = XE_AUTONEG_NONE;
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
/*
|
|
* If a specific media has been requested, we just reset the card and
|
|
* select it (one small exception -- if 100baseTX is requested by there is
|
|
* no PHY, we fall back to 10baseT operation).
|
|
*/
|
|
case IFM_100_TX: /* Force 100baseTX */
|
|
xe_soft_reset(scp);
|
|
if (scp->phy_ok) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Selecting 100baseTX\n", scp->unit);
|
|
#endif
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0);
|
|
xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL);
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
|
|
scp->media |= IFM_100_TX;
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
|
|
case IFM_10_T: /* Force 10baseT */
|
|
xe_soft_reset(scp);
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Selecting 10baseT\n", scp->unit);
|
|
#endif
|
|
if (scp->phy_ok) {
|
|
xe_phy_writereg(scp, PHY_BMCR, 0x0000);
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY */
|
|
}
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0x80);
|
|
scp->media |= IFM_10_T;
|
|
break;
|
|
|
|
case IFM_10_2:
|
|
xe_soft_reset(scp);
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Selecting 10base2\n", scp->unit);
|
|
#endif
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0xc0);
|
|
scp->media |= IFM_10_2;
|
|
break;
|
|
}
|
|
|
|
|
|
/*
|
|
* Finally, the LEDs are set to match whatever media was chosen and the
|
|
* transmitter is unblocked.
|
|
*/
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: Setting LEDs\n", scp->unit);
|
|
#endif
|
|
XE_SELECT_PAGE(2);
|
|
switch (IFM_SUBTYPE(scp->media)) {
|
|
case IFM_100_TX:
|
|
case IFM_10_T:
|
|
XE_OUTB(XE_LED, 0x3b);
|
|
if (scp->cem56)
|
|
XE_OUTB(0x0b, 0x04); /* 100Mbit LED */
|
|
break;
|
|
|
|
case IFM_10_2:
|
|
XE_OUTB(XE_LED, 0x3a);
|
|
break;
|
|
}
|
|
|
|
/* Restart output? */
|
|
scp->ifp->if_flags &= ~IFF_OACTIVE;
|
|
xe_init(scp);
|
|
}
|
|
|
|
|
|
/*
|
|
* Hard reset (power cycle) the card.
|
|
*/
|
|
static void
|
|
xe_hard_reset(struct xe_softc *scp) {
|
|
int s;
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: hard_reset\n", scp->unit);
|
|
#endif
|
|
|
|
if (scp->gone) return;
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Power cycle the card.
|
|
*/
|
|
XE_SELECT_PAGE(4);
|
|
XE_OUTB(XE_GPR1, 0); /* Power off */
|
|
DELAY(40000);
|
|
|
|
if (scp->ce3)
|
|
XE_OUTB(XE_GPR1, 1); /* And back on again */
|
|
else
|
|
XE_OUTB(XE_GPR1, 5); /* Also set AIC bit, whatever that is */
|
|
DELAY(40000);
|
|
XE_SELECT_PAGE(0);
|
|
|
|
(void)splx(s);
|
|
}
|
|
|
|
|
|
/*
|
|
* Soft reset the card. Also makes sure that the ML6692 and 10Mbit controller
|
|
* are powered up, sets the silicon revision number in softc, disables
|
|
* interrupts and checks for the prescence of a 100Mbit PHY. This should
|
|
* leave us in a position where we can access the PHY and do media
|
|
* selection. The function imposes a 0.5s delay while the hardware powers up.
|
|
*/
|
|
static void
|
|
xe_soft_reset(struct xe_softc *scp) {
|
|
int s;
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: soft_reset\n", scp->unit);
|
|
#endif
|
|
|
|
if (scp->gone) return;
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Reset the card, (again).
|
|
*/
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTB(XE_CR, XE_CR_SOFT_RESET);
|
|
DELAY(40000);
|
|
XE_OUTB(XE_CR, 0);
|
|
DELAY(40000);
|
|
|
|
if (scp->ce3) {
|
|
/*
|
|
* set GP1 and GP2 as outputs (bits 2 & 3)
|
|
* set GP1 low to power on the ML6692 (bit 0)
|
|
* set GP2 high to power on the 10Mhz chip (bit 1)
|
|
*/
|
|
XE_SELECT_PAGE(4);
|
|
XE_OUTB(XE_GPR0, 0x0e);
|
|
}
|
|
|
|
/*
|
|
* Wait for everything to wake up.
|
|
*/
|
|
DELAY(500000);
|
|
|
|
/*
|
|
* Get silicon revision number.
|
|
*/
|
|
XE_SELECT_PAGE(4);
|
|
if (scp->ce3)
|
|
scp->srev = (XE_INB(XE_BOV) & 0x70) >> 4;
|
|
else
|
|
scp->srev = (XE_INB(XE_BOV) & 0x30) >> 4;
|
|
|
|
/*
|
|
* Shut off interrupts.
|
|
*/
|
|
xe_disable_intr(scp);
|
|
|
|
/*
|
|
* Check for PHY.
|
|
*/
|
|
if (scp->ce3) {
|
|
scp->phy_ok = xe_mii_init(scp);
|
|
}
|
|
|
|
XE_SELECT_PAGE(0);
|
|
|
|
(void)splx(s);
|
|
}
|
|
|
|
|
|
/*
|
|
* Take interface offline. This is done by powering down the device, which I
|
|
* assume means just shutting down the transceiver and Ethernet logic. This
|
|
* requires a _hard_ reset to recover from, as we need to power up again.
|
|
*/
|
|
static void
|
|
xe_stop(struct xe_softc *scp) {
|
|
int s;
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: stop\n", scp->unit);
|
|
#endif
|
|
|
|
if (scp->gone) return;
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Shut off interrupts.
|
|
*/
|
|
xe_disable_intr(scp);
|
|
|
|
/*
|
|
* Power down.
|
|
*/
|
|
XE_SELECT_PAGE(4);
|
|
XE_OUTB(XE_GPR1, 0);
|
|
XE_SELECT_PAGE(0);
|
|
|
|
/*
|
|
* ~IFF_RUNNING == interface down.
|
|
*/
|
|
scp->ifp->if_flags &= ~IFF_RUNNING;
|
|
scp->ifp->if_flags &= ~IFF_OACTIVE;
|
|
scp->ifp->if_timer = 0;
|
|
|
|
(void)splx(s);
|
|
}
|
|
|
|
|
|
/*
|
|
* Enable Ethernet interrupts from the card.
|
|
*/
|
|
static void
|
|
xe_enable_intr(struct xe_softc *scp) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: enable_intr\n", scp->unit);
|
|
#endif
|
|
|
|
XE_SELECT_PAGE(1);
|
|
XE_OUTB(XE_IMR0, 0xff); /* Unmask everything */
|
|
XE_OUTB(XE_IMR1, 0x01); /* Unmask TX underrun detection */
|
|
DELAY(1);
|
|
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Enable interrupts */
|
|
if (scp->modem && !scp->cem56) { /* This bit is just magic */
|
|
if (!(XE_INB(0x10) & 0x01)) {
|
|
XE_OUTB(0x10, 0x11); /* Unmask master int enable bit */
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Disable all Ethernet interrupts from the card.
|
|
*/
|
|
static void
|
|
xe_disable_intr(struct xe_softc *scp) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: disable_intr\n", scp->unit);
|
|
#endif
|
|
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTB(XE_CR, 0); /* Disable interrupts */
|
|
if (scp->modem && !scp->cem56) { /* More magic (does this work?) */
|
|
XE_OUTB(0x10, 0x10); /* Mask the master int enable bit */
|
|
}
|
|
|
|
XE_SELECT_PAGE(1);
|
|
XE_OUTB(XE_IMR0, 0); /* Forbid all interrupts */
|
|
XE_OUTB(XE_IMR1, 0);
|
|
XE_SELECT_PAGE(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Set up multicast filter and promiscuous mode
|
|
*/
|
|
static void
|
|
xe_setmulti(struct xe_softc *scp) {
|
|
struct ifnet *ifp;
|
|
struct ifmultiaddr *maddr;
|
|
int count;
|
|
|
|
ifp = &scp->arpcom.ac_if;
|
|
maddr = ifp->if_multiaddrs.lh_first;
|
|
|
|
/* Get length of multicast list */
|
|
for (count = 0; maddr != NULL; maddr = maddr->ifma_link.le_next, count++);
|
|
|
|
if ((ifp->if_flags & IFF_PROMISC) || (ifp->if_flags & IFF_ALLMULTI) || (count > 9)) {
|
|
/*
|
|
* Go into promiscuous mode if either of the PROMISC or ALLMULTI flags are
|
|
* set, or if we have been asked to deal with more than 9 multicast
|
|
* addresses. To do this: set MPE and PME in SWC1
|
|
*/
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0x06);
|
|
}
|
|
else if ((ifp->if_flags & IFF_MULTICAST) && (count > 0)) {
|
|
/*
|
|
* Program the filters for up to 9 addresses
|
|
*/
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0);
|
|
XE_SELECT_PAGE(0x40);
|
|
XE_OUTB(XE_OCR, XE_OCR_OFFLINE);
|
|
xe_setaddrs(scp);
|
|
XE_SELECT_PAGE(0x40);
|
|
XE_OUTB(XE_OCR, XE_OCR_RX_ENABLE|XE_OCR_ONLINE);
|
|
}
|
|
else {
|
|
/*
|
|
* No multicast operation (default)
|
|
*/
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0);
|
|
}
|
|
XE_SELECT_PAGE(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Set up all on-chip addresses (for multicast). AFAICS, there are 10
|
|
* of these things; the first is our MAC address, the other 9 are mcast
|
|
* addresses, padded with the MAC address if there aren't enough.
|
|
* XXX - I think the Linux code gets this wrong and only writes one byte for
|
|
* XXX - each address. I *think* this code does it right, but it needs more
|
|
* XXX - intensive testing to be sure.
|
|
*/
|
|
static void
|
|
xe_setaddrs(struct xe_softc *scp) {
|
|
struct ifmultiaddr *maddr;
|
|
u_int8_t *addr;
|
|
u_int8_t page, slot, byte, i;
|
|
|
|
maddr = scp->arpcom.ac_if.if_multiaddrs.lh_first;
|
|
|
|
XE_SELECT_PAGE(page = 0x50);
|
|
|
|
for (slot = 0, byte = 8; slot < 10; slot++) {
|
|
|
|
if (slot == 0)
|
|
addr = (u_int8_t *)(&scp->arpcom.ac_enaddr);
|
|
else {
|
|
while (maddr != NULL && maddr->ifma_addr->sa_family != AF_LINK)
|
|
maddr = maddr->ifma_link.le_next;
|
|
if (maddr != NULL)
|
|
addr = LLADDR((struct sockaddr_dl *)maddr->ifma_addr);
|
|
else
|
|
addr = (u_int8_t *)(&scp->arpcom.ac_enaddr);
|
|
}
|
|
|
|
for (i = 0; i < 6; i++, byte++) {
|
|
|
|
if (byte > 15) {
|
|
page++;
|
|
byte = 8;
|
|
XE_SELECT_PAGE(page);
|
|
}
|
|
|
|
if (scp->ce3)
|
|
XE_OUTB(byte, addr[5 - i]);
|
|
else
|
|
XE_OUTB(byte, addr[i]);
|
|
}
|
|
}
|
|
XE_SELECT_PAGE(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Write an outgoing packet to the card using programmed I/O.
|
|
*/
|
|
static int
|
|
xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp) {
|
|
struct mbuf *mbp2;
|
|
u_int16_t len, pad, free, ok;
|
|
u_int8_t *data;
|
|
u_int8_t savebyte[2], wantbyte;
|
|
|
|
/* Get total packet length */
|
|
for (len = 0, mbp2 = mbp; mbp2 != NULL; len += mbp2->m_len, mbp2 = mbp2->m_next);
|
|
|
|
/* Packets < minimum length may need to be padded out */
|
|
pad = 0;
|
|
if (len < ETHER_MIN_LEN - ETHER_CRC_LEN) {
|
|
pad = (ETHER_MIN_LEN - ETHER_CRC_LEN - len + 1) >> 1;
|
|
len = ETHER_MIN_LEN - ETHER_CRC_LEN;
|
|
}
|
|
|
|
/* Check transmit buffer space */
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTW(XE_TRS, len+2);
|
|
free = XE_INW(XE_TSO);
|
|
ok = free & 0x8000;
|
|
free &= 0x7fff;
|
|
if (free <= len + 2)
|
|
return 1;
|
|
|
|
/* Send packet length to card */
|
|
XE_OUTW(XE_EDP, len);
|
|
|
|
/*
|
|
* Write packet to card using PIO (code stolen from the ed driver)
|
|
*/
|
|
wantbyte = 0;
|
|
while (mbp != NULL) {
|
|
len = mbp->m_len;
|
|
if (len > 0) {
|
|
data = mtod(mbp, caddr_t);
|
|
if (wantbyte) { /* Finish the last word */
|
|
savebyte[1] = *data;
|
|
XE_OUTW(XE_EDP, *(u_short *)savebyte);
|
|
data++;
|
|
len--;
|
|
wantbyte = 0;
|
|
}
|
|
if (len > 1) { /* Output contiguous words */
|
|
outsw(scp->dev->id_iobase+XE_EDP, data, len >> 1);
|
|
data += len & ~1;
|
|
len &= 1;
|
|
}
|
|
if (len == 1) { /* Save last byte, if necessary */
|
|
savebyte[0] = *data;
|
|
wantbyte = 1;
|
|
}
|
|
}
|
|
mbp = mbp->m_next;
|
|
}
|
|
if (wantbyte) /* Last byte for odd-length packets */
|
|
XE_OUTW(XE_EDP, *(u_short *)savebyte);
|
|
|
|
/*
|
|
* For CE3 cards, just tell 'em to send -- apparently the card will pad out
|
|
* short packets with random cruft. Otherwise, write nonsense words to fill
|
|
* out the packet. I guess it is then sent automatically (?)
|
|
*/
|
|
if (scp->ce3)
|
|
XE_OUTB(XE_CR, XE_CR_TX_PACKET|XE_CR_ENABLE_INTR);
|
|
else
|
|
while (pad > 0)
|
|
XE_OUTW(XE_EDP, 0xfeed);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* The device entry is being removed, probably because someone ejected the
|
|
* card. The interface should have been brought down manually before calling
|
|
* this function; if not you may well lose packets. In any case, I shut down
|
|
* the card and the interface, and hope for the best. The 'gone' flag is set,
|
|
* so hopefully no-one else will try to access the missing card.
|
|
*/
|
|
static void
|
|
xe_card_unload(struct pccard_devinfo *devi) {
|
|
struct xe_softc *scp;
|
|
struct ifnet *ifp;
|
|
int unit;
|
|
|
|
unit = devi->isahd.id_unit;
|
|
scp = sca[unit];
|
|
ifp = &scp->arpcom.ac_if;
|
|
|
|
if (scp->gone) {
|
|
printf("xe%d: already unloaded\n", unit);
|
|
return;
|
|
}
|
|
|
|
if_down(ifp);
|
|
ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE);
|
|
xe_stop(scp);
|
|
scp->gone = 1;
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************
|
|
* *
|
|
* M I I F U N C T I O N S *
|
|
* *
|
|
**************************************************************/
|
|
|
|
/*
|
|
* Alternative MII/PHY handling code adapted from the xl driver. It doesn't
|
|
* seem to work any better than the xirc2_ps stuff, but it's cleaner code.
|
|
*/
|
|
#define XE_MII_SET(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) | (x))
|
|
#define XE_MII_CLR(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) & ~(x))
|
|
|
|
|
|
/*
|
|
* Sync the PHYs by setting data bit and strobing the clock 32 times.
|
|
*/
|
|
static void
|
|
xe_mii_sync(struct xe_softc *scp) {
|
|
register int i;
|
|
|
|
XE_SELECT_PAGE(2);
|
|
XE_MII_SET(XE_MII_DIR|XE_MII_WRD);
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
DELAY(1);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Look for a MII-compliant PHY. If we find one, reset it.
|
|
*/
|
|
static int
|
|
xe_mii_init(struct xe_softc *scp) {
|
|
u_int16_t status;
|
|
|
|
status = xe_phy_readreg(scp, PHY_BMSR);
|
|
if ((status & 0xff00) != 0x7800) {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: no PHY found, %0x\n", scp->unit, status);
|
|
#endif
|
|
return 0;
|
|
}
|
|
else {
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: PHY OK!\n", scp->unit);
|
|
#endif
|
|
|
|
/* Reset the PHY */
|
|
xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_RESET);
|
|
DELAY(500);
|
|
while(xe_phy_readreg(scp, PHY_BMCR) & PHY_BMCR_RESET);
|
|
XE_MII_DUMP(scp);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Clock a series of bits through the MII.
|
|
*/
|
|
static void
|
|
xe_mii_send(struct xe_softc *scp, u_int32_t bits, int cnt) {
|
|
int i;
|
|
|
|
XE_SELECT_PAGE(2);
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
|
|
for (i = (0x1 << (cnt - 1)); i; i >>= 1) {
|
|
if (bits & i) {
|
|
XE_MII_SET(XE_MII_WRD);
|
|
} else {
|
|
XE_MII_CLR(XE_MII_WRD);
|
|
}
|
|
DELAY(1);
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
DELAY(1);
|
|
XE_MII_SET(XE_MII_CLK);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Read an PHY register through the MII.
|
|
*/
|
|
static int
|
|
xe_mii_readreg(struct xe_softc *scp, struct xe_mii_frame *frame) {
|
|
int i, ack, s;
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Set up frame for RX.
|
|
*/
|
|
frame->mii_stdelim = XE_MII_STARTDELIM;
|
|
frame->mii_opcode = XE_MII_READOP;
|
|
frame->mii_turnaround = 0;
|
|
frame->mii_data = 0;
|
|
|
|
XE_SELECT_PAGE(2);
|
|
XE_OUTB(XE_GPR2, 0);
|
|
|
|
/*
|
|
* Turn on data xmit.
|
|
*/
|
|
XE_MII_SET(XE_MII_DIR);
|
|
|
|
xe_mii_sync(scp);
|
|
|
|
/*
|
|
* Send command/address info.
|
|
*/
|
|
xe_mii_send(scp, frame->mii_stdelim, 2);
|
|
xe_mii_send(scp, frame->mii_opcode, 2);
|
|
xe_mii_send(scp, frame->mii_phyaddr, 5);
|
|
xe_mii_send(scp, frame->mii_regaddr, 5);
|
|
|
|
/* Idle bit */
|
|
XE_MII_CLR((XE_MII_CLK|XE_MII_WRD));
|
|
DELAY(1);
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
|
|
/* Turn off xmit. */
|
|
XE_MII_CLR(XE_MII_DIR);
|
|
|
|
/* Check for ack */
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
DELAY(1);
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
ack = XE_INB(XE_GPR2) & XE_MII_RDD;
|
|
|
|
/*
|
|
* Now try reading data bits. If the ack failed, we still
|
|
* need to clock through 16 cycles to keep the PHY(s) in sync.
|
|
*/
|
|
if (ack) {
|
|
for(i = 0; i < 16; i++) {
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
DELAY(1);
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
}
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0x8000; i; i >>= 1) {
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
DELAY(1);
|
|
if (!ack) {
|
|
if (XE_INB(XE_GPR2) & XE_MII_RDD)
|
|
frame->mii_data |= i;
|
|
DELAY(1);
|
|
}
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
}
|
|
|
|
fail:
|
|
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
DELAY(1);
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
|
|
splx(s);
|
|
|
|
if (ack)
|
|
return(1);
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Write to a PHY register through the MII.
|
|
*/
|
|
static int
|
|
xe_mii_writereg(struct xe_softc *scp, struct xe_mii_frame *frame) {
|
|
int s;
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Set up frame for TX.
|
|
*/
|
|
frame->mii_stdelim = XE_MII_STARTDELIM;
|
|
frame->mii_opcode = XE_MII_WRITEOP;
|
|
frame->mii_turnaround = XE_MII_TURNAROUND;
|
|
|
|
XE_SELECT_PAGE(2);
|
|
|
|
/*
|
|
* Turn on data output.
|
|
*/
|
|
XE_MII_SET(XE_MII_DIR);
|
|
|
|
xe_mii_sync(scp);
|
|
|
|
xe_mii_send(scp, frame->mii_stdelim, 2);
|
|
xe_mii_send(scp, frame->mii_opcode, 2);
|
|
xe_mii_send(scp, frame->mii_phyaddr, 5);
|
|
xe_mii_send(scp, frame->mii_regaddr, 5);
|
|
xe_mii_send(scp, frame->mii_turnaround, 2);
|
|
xe_mii_send(scp, frame->mii_data, 16);
|
|
|
|
/* Idle bit. */
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
XE_MII_CLR(XE_MII_CLK);
|
|
DELAY(1);
|
|
|
|
/*
|
|
* Turn off xmit.
|
|
*/
|
|
XE_MII_CLR(XE_MII_DIR);
|
|
|
|
splx(s);
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Read a register from the PHY.
|
|
*/
|
|
static u_int16_t
|
|
xe_phy_readreg(struct xe_softc *scp, u_int16_t reg) {
|
|
struct xe_mii_frame frame;
|
|
|
|
bzero((char *)&frame, sizeof(frame));
|
|
|
|
frame.mii_phyaddr = 0;
|
|
frame.mii_regaddr = reg;
|
|
xe_mii_readreg(scp, &frame);
|
|
|
|
return(frame.mii_data);
|
|
}
|
|
|
|
|
|
/*
|
|
* Write to a PHY register.
|
|
*/
|
|
static void
|
|
xe_phy_writereg(struct xe_softc *scp, u_int16_t reg, u_int16_t data) {
|
|
struct xe_mii_frame frame;
|
|
|
|
bzero((char *)&frame, sizeof(frame));
|
|
|
|
frame.mii_phyaddr = 0;
|
|
frame.mii_regaddr = reg;
|
|
frame.mii_data = data;
|
|
xe_mii_writereg(scp, &frame);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
#ifdef XE_DEBUG
|
|
static void
|
|
xe_mii_dump(struct xe_softc *scp) {
|
|
int i, unit = scp->dev->id_unit;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
printf(" %d:%04x", i, xe_phy_readreg(scp, i));
|
|
}
|
|
for (i = 4; i < 7; i++) {
|
|
printf(" %d:%04x", i, xe_phy_readreg(scp, i));
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
static void
|
|
xe_reg_dump(struct xe_softc *scp) {
|
|
int unit = scp->dev->id_unit;
|
|
int page, i;
|
|
|
|
printf("xe%d: Common registers: ", unit);
|
|
for (i = 0; i < 8; i++) {
|
|
printf(" %2.2x", XE_INB(i));
|
|
}
|
|
printf("\n");
|
|
|
|
for (page = 0; page < 8; page++) {
|
|
printf("xe%d: Register page %2.2x: ", unit, page);
|
|
XE_SELECT_PAGE(page);
|
|
for (i = 8; i < 16; i++) {
|
|
printf(" %2.2x", XE_INB(i));
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
for (page = 0x40; page < 0x5f; page++) {
|
|
if (page==0x43 || (page>=0x46 && page<=0x4f) || (page>=0x51 && page<=0x5e))
|
|
continue;
|
|
printf("xe%d: Register page %2.2x: ", unit, page);
|
|
XE_SELECT_PAGE(page);
|
|
for (i = 8; i < 16; i++) {
|
|
printf(" %2.2x", XE_INB(i));
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
#if NAPM > 0
|
|
/**************************************************************
|
|
* *
|
|
* A P M F U N C T I O N S *
|
|
* *
|
|
**************************************************************/
|
|
|
|
/*
|
|
* This is called when we go into suspend/standby mode
|
|
*/
|
|
static int
|
|
xe_suspend(void *xunit) {
|
|
struct xe_softc *scp = sca[(int)xunit];
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: APM suspend\n", scp->unit);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This is called when we wake up again
|
|
*/
|
|
static int
|
|
xe_resume(void *xunit) {
|
|
struct xe_softc *scp = sca[(int)xunit];
|
|
|
|
#ifdef XE_DEBUG
|
|
printf("xe%d: APM resume\n", scp->unit);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#endif /* NAPM > 0 */
|
|
|
|
#endif /* NCARD > 0 */
|
|
|
|
#endif /* NXE > 0 */
|