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ef544f6312
bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@
1964 lines
52 KiB
C
1964 lines
52 KiB
C
/*-
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* Copyright (c) 1998, 1999, 2003 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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/*-
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The
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* following cards are currently known to work with the driver:
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* Xircom CreditCard 10/100 (CE3)
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* Xircom CreditCard Ethernet + Modem 28 (CEM28)
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* Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56)
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* Xircom RealPort Ethernet 10
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* Xircom RealPort Ethernet 10/100
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* Xircom RealPort Ethernet 10/100 + Modem 56 (REM56, REM56G)
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* Intel EtherExpress Pro/100 PC Card Mobile Adapter 16 (Pro/100 M16A)
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* Compaq Netelligent 10/100 PC Card (CPQ-10/100)
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*
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* Some other cards *should* work, but support for them is either broken or in
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* an unknown state at the moment. I'm always interested in hearing from
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* people who own any of these cards:
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* Xircom CreditCard 10Base-T (PS-CE2-10)
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* Xircom CreditCard Ethernet + ModemII (CEM2)
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* Xircom CEM28 and CEM33 Ethernet/Modem cards (may be variants of CEM2?)
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*
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* Thanks to all who assisted with the development and testing of the driver,
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* especially: Werner Koch, Duke Kamstra, Duncan Barclay, Jason George, Dru
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* Nelson, Mike Kephart, Bill Rainey and Douglas Rand. Apologies if I've left
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* out anyone who deserves a mention here.
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*
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* Special thanks to Ade Lovett for both hosting the mailing list and doing
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* the CEM56/REM56 support code; and the FreeBSD UK Users' Group for hosting
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* the web pages.
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*
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* Author email: <scott@uk.freebsd.org>
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* Driver web page: http://ukug.uk.freebsd.org/~scott/xe_drv/
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*/
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#include <sys/param.h>
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#include <sys/cdefs.h>
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#include <sys/errno.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.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 <sys/sysctl.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.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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#include <net/bpf.h>
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#include <net/if_types.h>
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#include <dev/xe/if_xereg.h>
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#include <dev/xe/if_xevar.h>
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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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* 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 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 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_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_set_multicast (struct xe_softc *scp);
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static void xe_set_addr (struct xe_softc *scp, u_int8_t* addr, unsigned idx);
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static void xe_mchash (struct xe_softc *scp, const uint8_t *addr);
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static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp);
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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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* Debugging functions
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*/
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static void xe_mii_dump (struct xe_softc *scp);
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#if 0
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static void xe_reg_dump (struct xe_softc *scp);
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#endif
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/*
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* Debug logging levels - set with hw.xe.debug sysctl
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* 0 = None
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* 1 = More hardware details, probe/attach progress
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* 2 = Most function calls, ioctls and media selection progress
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* 3 = Everything - interrupts, packets in/out and multicast address setup
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*/
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#define XE_DEBUG
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#ifdef XE_DEBUG
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/* sysctl vars */
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SYSCTL_NODE(_hw, OID_AUTO, xe, CTLFLAG_RD, 0, "if_xe parameters");
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int xe_debug = 0;
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SYSCTL_INT(_hw_xe, OID_AUTO, debug, CTLFLAG_RW,
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&xe_debug, 0, "if_xe debug level");
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#define DEVPRINTF(level, arg) if (xe_debug >= (level)) device_printf arg
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#define DPRINTF(level, arg) if (xe_debug >= (level)) printf arg
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#define XE_MII_DUMP(scp) if (xe_debug >= 3) xe_mii_dump(scp)
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#if 0
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#define XE_REG_DUMP(scp) if (xe_debug >= 3) xe_reg_dump(scp)
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#endif
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#else
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#define DEVPRINTF(level, arg)
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#define DPRINTF(level, arg)
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#define XE_MII_DUMP(scp)
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#if 0
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#define XE_REG_DUMP(scp)
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#endif
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#endif
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/*
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* Attach a device.
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*/
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int
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xe_attach (device_t dev)
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{
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struct xe_softc *scp = device_get_softc(dev);
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DEVPRINTF(2, (dev, "attach\n"));
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/* Initialise stuff... */
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scp->dev = dev;
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scp->ifp = if_alloc(IFT_ETHER);
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if (scp->ifp == NULL)
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return ENOSPC;
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scp->ifm = &scp->ifmedia;
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scp->autoneg_status = XE_AUTONEG_NONE;
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/* Initialise the ifnet structure */
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scp->ifp->if_softc = scp;
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if_initname(scp->ifp, device_get_name(dev), device_get_unit(dev));
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scp->ifp->if_timer = 0;
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scp->ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
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IFF_NEEDSGIANT);
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scp->ifp->if_linkmib = &scp->mibdata;
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scp->ifp->if_linkmiblen = sizeof scp->mibdata;
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scp->ifp->if_start = xe_start;
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scp->ifp->if_ioctl = xe_ioctl;
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scp->ifp->if_watchdog = xe_watchdog;
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scp->ifp->if_init = xe_init;
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scp->ifp->if_baudrate = 100000000;
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scp->ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
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/* Initialise the ifmedia structure */
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ifmedia_init(scp->ifm, 0, xe_media_change, xe_media_status);
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callout_handle_init(&scp->chand);
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/* Add supported media types */
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if (scp->mohawk) {
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ifmedia_add(scp->ifm, IFM_ETHER|IFM_100_TX, 0, NULL);
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ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
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ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
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}
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ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL);
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if (scp->ce2)
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ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_2, 0, NULL);
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ifmedia_add(scp->ifm, IFM_ETHER|IFM_AUTO, 0, NULL);
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/* Default is to autoselect best supported media type */
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ifmedia_set(scp->ifm, IFM_ETHER|IFM_AUTO);
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/* Get the hardware into a known state */
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xe_reset(scp);
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/* Get hardware version numbers */
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XE_SELECT_PAGE(4);
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scp->version = XE_INB(XE_BOV);
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if (scp->mohawk)
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scp->srev = (XE_INB(XE_BOV) & 0x70) >> 4;
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else
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scp->srev = (XE_INB(XE_BOV) & 0x30) >> 4;
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/* Print some useful information */
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device_printf(dev, "version 0x%02x/0x%02x%s%s\n", scp->version,
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scp->srev, scp->mohawk ? ", 100Mbps capable" : "",
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scp->modem ? ", with modem" : "");
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if (scp->mohawk) {
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XE_SELECT_PAGE(0x10);
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DEVPRINTF(1, (dev, "DingoID=0x%04x, RevisionID=0x%04x, VendorID=0x%04x\n",
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XE_INW(XE_DINGOID),
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XE_INW(XE_RevID),
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XE_INW(XE_VendorID)));
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}
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if (scp->ce2) {
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XE_SELECT_PAGE(0x45);
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DEVPRINTF(1, (dev, "CE2 version = 0x%02x\n", XE_INB(XE_REV)));
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}
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/* Attach the interface */
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ether_ifattach(scp->ifp, scp->enaddr);
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/* Done */
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return 0;
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}
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/*
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* Complete hardware intitialisation and enable output. Exits without doing
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* anything if there's no address assigned to the card, or if media selection
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* is in progress (the latter implies we've already run this function).
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*/
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static void
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xe_init(void *xscp) {
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struct xe_softc *scp = xscp;
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unsigned i;
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int s;
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if (scp->autoneg_status != XE_AUTONEG_NONE) return;
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DEVPRINTF(2, (scp->dev, "init\n"));
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s = splimp();
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/* Reset transmitter flags */
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scp->tx_queued = 0;
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scp->tx_tpr = 0;
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scp->tx_timeouts = 0;
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scp->tx_thres = 64;
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scp->tx_min = ETHER_MIN_LEN - ETHER_CRC_LEN;
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scp->ifp->if_timer = 0;
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/* Soft reset the card */
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XE_SELECT_PAGE(0);
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XE_OUTB(XE_CR, XE_CR_SOFT_RESET);
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DELAY(40000);
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XE_OUTB(XE_CR, 0);
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DELAY(40000);
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if (scp->mohawk) {
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/*
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* set GP1 and GP2 as outputs (bits 2 & 3)
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* set GP1 low to power on the ML6692 (bit 0)
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* set GP2 high to power on the 10Mhz chip (bit 1)
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*/
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XE_SELECT_PAGE(4);
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XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT|XE_GPR0_GP1_SELECT|XE_GPR0_GP2_OUT);
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}
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/* Shut off interrupts */
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xe_disable_intr(scp);
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/* Wait for everything to wake up */
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DELAY(500000);
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/* Check for PHY */
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if (scp->mohawk)
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scp->phy_ok = xe_mii_init(scp);
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/* Disable 'source insertion' (not sure what that means) */
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XE_SELECT_PAGE(0x42);
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XE_OUTB(XE_SWC0, XE_SWC0_NO_SRC_INSERT);
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/* Set 8K/24K Tx/Rx buffer split */
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if (scp->srev != 1) {
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XE_SELECT_PAGE(2);
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XE_OUTW(XE_RBS, 0x2000);
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}
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/* Enable early transmit mode on Mohawk/Dingo */
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if (scp->mohawk) {
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XE_SELECT_PAGE(0x03);
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XE_OUTW(XE_TPT, scp->tx_thres);
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XE_SELECT_PAGE(0x01);
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XE_OUTB(XE_ECR, XE_INB(XE_ECR) | XE_ECR_EARLY_TX);
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}
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/* Put MAC address in first 'individual address' register */
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XE_SELECT_PAGE(0x50);
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for (i = 0; i < 6; i++)
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XE_OUTB(0x08 + i, IF_LLADDR(scp->ifp)[scp->mohawk ? 5 - i : i]);
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/* Set up multicast addresses */
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xe_set_multicast(scp);
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/* Fix the receive data offset -- reset can leave it off-by-one */
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XE_SELECT_PAGE(0);
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XE_OUTW(XE_DO, 0x2000);
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/* Set interrupt masks */
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XE_SELECT_PAGE(1);
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XE_OUTB(XE_IMR0, XE_IMR0_TX_PACKET | XE_IMR0_MAC_INTR | XE_IMR0_RX_PACKET);
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/* Set MAC interrupt masks */
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XE_SELECT_PAGE(0x40);
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XE_OUTB(XE_RX0Msk,
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~(XE_RX0M_RX_OVERRUN | XE_RX0M_CRC_ERROR
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| XE_RX0M_ALIGN_ERROR | XE_RX0M_LONG_PACKET));
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XE_OUTB(XE_TX0Msk,
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~(XE_TX0M_SQE_FAIL | XE_TX0M_LATE_COLLISION | XE_TX0M_TX_UNDERRUN
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| XE_TX0M_16_COLLISIONS | XE_TX0M_NO_CARRIER));
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/* Clear MAC status registers */
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XE_SELECT_PAGE(0x40);
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XE_OUTB(XE_RST0, 0x00);
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XE_OUTB(XE_TXST0, 0x00);
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/* Enable receiver and put MAC online */
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XE_SELECT_PAGE(0x40);
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XE_OUTB(XE_CMD0, XE_CMD0_RX_ENABLE|XE_CMD0_ONLINE);
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/* Set up IMR, enable interrupts */
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xe_enable_intr(scp);
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/* Start media selection */
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xe_setmedia(scp);
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/* Enable output */
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scp->ifp->if_drv_flags |= IFF_DRV_RUNNING;
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scp->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
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(void)splx(s);
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}
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/*
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* Start output on interface. Should be called at splimp() priority. Check
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* that the output is idle (ie, IFF_DRV_OACTIVE is not set) before calling this
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* function. If media selection is in progress we set IFF_DRV_OACTIVE ourselves
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* and return immediately.
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*/
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static void
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xe_start(struct ifnet *ifp) {
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struct xe_softc *scp = ifp->if_softc;
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struct mbuf *mbp;
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if (scp->autoneg_status != XE_AUTONEG_NONE) {
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ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
return;
|
|
}
|
|
|
|
DEVPRINTF(3, (scp->dev, "start\n"));
|
|
|
|
/*
|
|
* Loop while there are packets to be sent, and space to send them.
|
|
*/
|
|
while (1) {
|
|
/* Suck a packet off the send queue */
|
|
IF_DEQUEUE(&ifp->if_snd, mbp);
|
|
|
|
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_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
return;
|
|
}
|
|
|
|
if (xe_pio_write_packet(scp, mbp) != 0) {
|
|
/* Push the packet back onto the queue */
|
|
IF_PREPEND(&ifp->if_snd, mbp);
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
return;
|
|
}
|
|
|
|
/* Tap off here if there is a bpf listener */
|
|
BPF_MTAP(ifp, mbp);
|
|
|
|
/* In case we don't hear from the card again... */
|
|
ifp->if_timer = 5;
|
|
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;
|
|
|
|
s = splimp();
|
|
|
|
switch (command) {
|
|
|
|
case SIOCSIFFLAGS:
|
|
DEVPRINTF(2, (scp->dev, "ioctl: SIOCSIFFLAGS: 0x%04x\n", ifp->if_flags));
|
|
/*
|
|
* 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_drv_flags & IFF_DRV_RUNNING)) {
|
|
xe_reset(scp);
|
|
xe_init(scp);
|
|
}
|
|
}
|
|
else {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
xe_stop(scp);
|
|
}
|
|
/* FALL THROUGH (handle changes to PROMISC/ALLMULTI flags) */
|
|
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
DEVPRINTF(2, (scp->dev, "ioctl: SIOC{ADD,DEL}MULTI\n"));
|
|
/*
|
|
* Multicast list has (maybe) changed; set the hardware filters
|
|
* accordingly.
|
|
*/
|
|
xe_set_multicast(scp);
|
|
error = 0;
|
|
break;
|
|
|
|
case SIOCSIFMEDIA:
|
|
case SIOCGIFMEDIA:
|
|
DEVPRINTF(3, (scp->dev, "ioctl: bounce to ifmedia_ioctl\n"));
|
|
/*
|
|
* Someone wants to get/set media options.
|
|
*/
|
|
error = ifmedia_ioctl(ifp, (struct ifreq *)data, &scp->ifmedia, command);
|
|
break;
|
|
|
|
default:
|
|
DEVPRINTF(3, (scp->dev, "ioctl: bounce to ether_ioctl\n"));
|
|
error = ether_ioctl(ifp, command, data);
|
|
}
|
|
|
|
(void)splx(s);
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
/*
|
|
* Card interrupt handler.
|
|
*
|
|
* 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 void
|
|
xe_intr(void *xscp)
|
|
{
|
|
struct xe_softc *scp = (struct xe_softc *) xscp;
|
|
struct ifnet *ifp;
|
|
u_int8_t psr, isr, esr, rsr, rst0, txst0, txst1, coll;
|
|
|
|
ifp = scp->ifp;
|
|
|
|
/* Disable interrupts */
|
|
if (scp->mohawk)
|
|
XE_OUTB(XE_CR, 0);
|
|
|
|
/* Cache current register page */
|
|
psr = XE_INB(XE_PR);
|
|
|
|
/* Read ISR to see what caused this interrupt */
|
|
while ((isr = XE_INB(XE_ISR)) != 0) {
|
|
|
|
/* 0xff might mean the card is no longer around */
|
|
if (isr == 0xff) {
|
|
DEVPRINTF(3, (scp->dev, "intr: interrupt received for missing card?\n"));
|
|
break;
|
|
}
|
|
|
|
/* Read other status registers */
|
|
XE_SELECT_PAGE(0x40);
|
|
rst0 = XE_INB(XE_RST0);
|
|
XE_OUTB(XE_RST0, 0);
|
|
txst0 = XE_INB(XE_TXST0);
|
|
txst1 = XE_INB(XE_TXST1);
|
|
coll = txst1 & XE_TXST1_RETRY_COUNT;
|
|
XE_OUTB(XE_TXST0, 0);
|
|
XE_OUTB(XE_TXST1, 0);
|
|
XE_SELECT_PAGE(0);
|
|
|
|
DEVPRINTF(3, (scp->dev, "intr: ISR=0x%02x, RST=0x%02x, TXT=0x%02x%02x, COLL=0x%01x\n", isr, rst0, txst1, txst0, coll));
|
|
|
|
if (isr & XE_ISR_TX_PACKET) {
|
|
u_int8_t tpr, sent;
|
|
|
|
/* Update packet count, accounting for rollover */
|
|
tpr = XE_INB(XE_TPR);
|
|
sent = -scp->tx_tpr + tpr;
|
|
|
|
/* Update statistics if we actually sent anything */
|
|
if (sent > 0) {
|
|
scp->tx_tpr = tpr;
|
|
scp->tx_queued -= sent;
|
|
ifp->if_opackets += sent;
|
|
ifp->if_collisions += coll;
|
|
|
|
/*
|
|
* According to the Xircom manual, Dingo will sometimes manage to
|
|
* transmit a packet with triggering an interrupt. If this happens,
|
|
* we have sent > 1 and the collision count only reflects collisions
|
|
* on the last packet sent (the one that triggered the interrupt).
|
|
* Collision stats might therefore be a bit low, but there doesn't
|
|
* seem to be anything we can do about that.
|
|
*/
|
|
|
|
switch (coll) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
scp->mibdata.dot3StatsSingleCollisionFrames++;
|
|
scp->mibdata.dot3StatsCollFrequencies[0]++;
|
|
break;
|
|
default:
|
|
scp->mibdata.dot3StatsMultipleCollisionFrames++;
|
|
scp->mibdata.dot3StatsCollFrequencies[coll-1]++;
|
|
}
|
|
}
|
|
ifp->if_timer = 0;
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
}
|
|
|
|
/* Handle most MAC interrupts */
|
|
if (isr & XE_ISR_MAC_INTR) {
|
|
|
|
#if 0
|
|
/* Carrier sense lost -- only in 10Mbit HDX mode */
|
|
if (txst0 & XE_TXST0_NO_CARRIER || !(txst1 & XE_TXST1_LINK_STATUS)) {
|
|
/* XXX - Need to update media status here */
|
|
device_printf(scp->dev, "no carrier\n");
|
|
ifp->if_oerrors++;
|
|
scp->mibdata.dot3StatsCarrierSenseErrors++;
|
|
}
|
|
#endif
|
|
/* Excessive collisions -- try sending again */
|
|
if (txst0 & XE_TXST0_16_COLLISIONS) {
|
|
ifp->if_collisions += 16;
|
|
ifp->if_oerrors++;
|
|
scp->mibdata.dot3StatsExcessiveCollisions++;
|
|
scp->mibdata.dot3StatsMultipleCollisionFrames++;
|
|
scp->mibdata.dot3StatsCollFrequencies[15]++;
|
|
XE_OUTB(XE_CR, XE_CR_RESTART_TX);
|
|
}
|
|
/* Transmit underrun -- increase early transmit threshold */
|
|
if (txst0 & XE_TXST0_TX_UNDERRUN && scp->mohawk) {
|
|
DEVPRINTF(1, (scp->dev, "transmit underrun"));
|
|
if (scp->tx_thres < ETHER_MAX_LEN) {
|
|
if ((scp->tx_thres += 64) > ETHER_MAX_LEN)
|
|
scp->tx_thres = ETHER_MAX_LEN;
|
|
DPRINTF(1, (": increasing transmit threshold to %u", scp->tx_thres));
|
|
XE_SELECT_PAGE(0x3);
|
|
XE_OUTW(XE_TPT, scp->tx_thres);
|
|
XE_SELECT_PAGE(0x0);
|
|
}
|
|
DPRINTF(1, ("\n"));
|
|
ifp->if_oerrors++;
|
|
scp->mibdata.dot3StatsInternalMacTransmitErrors++;
|
|
}
|
|
/* Late collision -- just complain about it */
|
|
if (txst0 & XE_TXST0_LATE_COLLISION) {
|
|
device_printf(scp->dev, "late collision\n");
|
|
ifp->if_oerrors++;
|
|
scp->mibdata.dot3StatsLateCollisions++;
|
|
}
|
|
/* SQE test failure -- just complain about it */
|
|
if (txst0 & XE_TXST0_SQE_FAIL) {
|
|
device_printf(scp->dev, "SQE test failure\n");
|
|
ifp->if_oerrors++;
|
|
scp->mibdata.dot3StatsSQETestErrors++;
|
|
}
|
|
/* Packet too long -- what happens to these */
|
|
if (rst0 & XE_RST0_LONG_PACKET) {
|
|
device_printf(scp->dev, "received giant packet\n");
|
|
ifp->if_ierrors++;
|
|
scp->mibdata.dot3StatsFrameTooLongs++;
|
|
}
|
|
/* CRC error -- packet dropped */
|
|
if (rst0 & XE_RST0_CRC_ERROR) {
|
|
device_printf(scp->dev, "CRC error\n");
|
|
ifp->if_ierrors++;
|
|
scp->mibdata.dot3StatsFCSErrors++;
|
|
}
|
|
}
|
|
|
|
/* Handle received packet(s) */
|
|
while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PACKET_RX) {
|
|
rsr = XE_INB(XE_RSR);
|
|
|
|
DEVPRINTF(3, (scp->dev, "intr: ESR=0x%02x, RSR=0x%02x\n", esr, rsr));
|
|
|
|
/* Make sure packet is a good one */
|
|
if (rsr & XE_RSR_RX_OK) {
|
|
struct ether_header *ehp;
|
|
struct mbuf *mbp;
|
|
u_int16_t len;
|
|
|
|
len = XE_INW(XE_RBC) - ETHER_CRC_LEN;
|
|
|
|
DEVPRINTF(3, (scp->dev, "intr: receive length = %d\n", len));
|
|
|
|
if (len == 0) {
|
|
ifp->if_iqdrops++;
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Allocate mbuf to hold received packet. If the mbuf header isn't
|
|
* big enough, we attach an mbuf cluster to hold the packet. Note the
|
|
* +=2 to align the packet data on a 32-bit boundary, and the +3 to
|
|
* allow for the possibility of reading one more byte than the actual
|
|
* packet length (we always read 16-bit words).
|
|
* XXX - Surely there's a better way to do this alignment?
|
|
*/
|
|
MGETHDR(mbp, M_DONTWAIT, MT_DATA);
|
|
if (mbp == NULL) {
|
|
ifp->if_iqdrops++;
|
|
continue;
|
|
}
|
|
|
|
if (len + 3 > MHLEN) {
|
|
MCLGET(mbp, M_DONTWAIT);
|
|
if ((mbp->m_flags & M_EXT) == 0) {
|
|
m_freem(mbp);
|
|
ifp->if_iqdrops++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
mbp->m_data += 2;
|
|
ehp = mtod(mbp, struct ether_header *);
|
|
|
|
/*
|
|
* Now get the packet in PIO mode, including the Ethernet header but
|
|
* omitting the trailing CRC.
|
|
*/
|
|
|
|
/*
|
|
* Work around a bug in CE2 cards. There seems to be a problem with
|
|
* duplicated and extraneous bytes in the receive buffer, but without
|
|
* any real documentation for the CE2 it's hard to tell for sure.
|
|
* XXX - Needs testing on CE2 hardware
|
|
*/
|
|
if (scp->srev == 0) {
|
|
u_short rhs;
|
|
|
|
XE_SELECT_PAGE(5);
|
|
rhs = XE_INW(XE_RHSA);
|
|
XE_SELECT_PAGE(0);
|
|
|
|
rhs += 3; /* Skip control info */
|
|
|
|
if (rhs >= 0x8000)
|
|
rhs = 0;
|
|
|
|
if (rhs + len > 0x8000) {
|
|
int i;
|
|
|
|
for (i = 0; i < len; i++, rhs++) {
|
|
((char *)ehp)[i] = XE_INB(XE_EDP);
|
|
if (rhs == 0x8000) {
|
|
rhs = 0;
|
|
i--;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
bus_space_read_multi_2(scp->bst, scp->bsh, XE_EDP,
|
|
(u_int16_t *) ehp, (len + 1) >> 1);
|
|
}
|
|
else
|
|
bus_space_read_multi_2(scp->bst, scp->bsh, XE_EDP,
|
|
(u_int16_t *) ehp, (len + 1) >> 1);
|
|
|
|
/* Deliver packet to upper layers */
|
|
mbp->m_pkthdr.rcvif = ifp;
|
|
mbp->m_pkthdr.len = mbp->m_len = len;
|
|
(*ifp->if_input)(ifp, mbp);
|
|
ifp->if_ipackets++;
|
|
}
|
|
|
|
/* Packet alignment error -- drop packet */
|
|
else if (rsr & XE_RSR_ALIGN_ERROR) {
|
|
device_printf(scp->dev, "alignment error\n");
|
|
scp->mibdata.dot3StatsAlignmentErrors++;
|
|
ifp->if_ierrors++;
|
|
}
|
|
|
|
/* Skip to next packet, if there is one */
|
|
XE_OUTW(XE_DO, 0x8000);
|
|
}
|
|
|
|
/* Clear receiver overruns now we have some free buffer space */
|
|
if (rst0 & XE_RST0_RX_OVERRUN) {
|
|
DEVPRINTF(1, (scp->dev, "receive overrun\n"));
|
|
ifp->if_ierrors++;
|
|
scp->mibdata.dot3StatsInternalMacReceiveErrors++;
|
|
XE_OUTB(XE_CR, XE_CR_CLEAR_OVERRUN);
|
|
}
|
|
}
|
|
|
|
/* Restore saved page */
|
|
XE_SELECT_PAGE(psr);
|
|
|
|
/* Re-enable interrupts */
|
|
XE_OUTB(XE_CR, XE_CR_ENABLE_INTR);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* 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;
|
|
|
|
device_printf(scp->dev, "watchdog timeout: resetting card\n");
|
|
scp->tx_timeouts++;
|
|
ifp->if_oerrors += scp->tx_queued;
|
|
xe_stop(scp);
|
|
xe_reset(scp);
|
|
xe_init(scp);
|
|
}
|
|
|
|
|
|
/*
|
|
* Change media selection.
|
|
*/
|
|
static int
|
|
xe_media_change(struct ifnet *ifp) {
|
|
struct xe_softc *scp = ifp->if_softc;
|
|
|
|
DEVPRINTF(2, (scp->dev, "media_change\n"));
|
|
|
|
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) {
|
|
struct xe_softc *scp = ifp->if_softc;
|
|
|
|
DEVPRINTF(3, (scp->dev, "media_status\n"));
|
|
|
|
/* XXX - This is clearly wrong. Will fix once I have CE2 working */
|
|
mrp->ifm_status = IFM_AVALID | IFM_ACTIVE;
|
|
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;
|
|
|
|
DEVPRINTF(2, (scp->dev, "setmedia\n"));
|
|
|
|
/* 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:
|
|
DEVPRINTF(2, (scp->dev, "Waiting for idle transmitter\n"));
|
|
scp->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
scp->autoneg_status = XE_AUTONEG_WAITING;
|
|
/* FALL THROUGH */
|
|
|
|
case XE_AUTONEG_WAITING:
|
|
if (scp->tx_queued != 0) {
|
|
scp->chand = timeout(xe_setmedia, scp, hz/2);
|
|
return;
|
|
}
|
|
if (scp->phy_ok) {
|
|
DEVPRINTF(2, (scp->dev, "Starting autonegotiation\n"));
|
|
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)) {
|
|
DEVPRINTF(2, (scp->dev, "Autonegotiation complete!\n"));
|
|
/*
|
|
* 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 {
|
|
/*
|
|
* XXX - Bit of a hack going on in here.
|
|
* XXX - This is derived from Ken Hughes patch to the Linux driver
|
|
* XXX - to make it work with 10Mbit _autonegotiated_ links on CE3B
|
|
* XXX - cards. What's a CE3B and how's it differ from a plain CE3?
|
|
* XXX - these are the things we need to find out.
|
|
*/
|
|
xe_phy_writereg(scp, PHY_BMCR, 0x0000);
|
|
XE_SELECT_PAGE(2);
|
|
/* BEGIN HACK */
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, 0x80);
|
|
scp->media = IFM_ETHER|IFM_10_T;
|
|
scp->autoneg_status = XE_AUTONEG_NONE;
|
|
/* END HACK */
|
|
/*XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08);*/ /* Disable PHY? */
|
|
/*scp->autoneg_status = XE_AUTONEG_FAIL;*/
|
|
}
|
|
}
|
|
else {
|
|
DEVPRINTF(2, (scp->dev, "Autonegotiation failed; trying 100baseTX\n"));
|
|
XE_MII_DUMP(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) {
|
|
DEVPRINTF(2, (scp->dev, "Got 100baseTX link!\n"));
|
|
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 {
|
|
DEVPRINTF(2, (scp->dev, "Autonegotiation failed; disabling PHY\n"));
|
|
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) {
|
|
DEVPRINTF(2, (scp->dev, "Selecting 10baseX\n"));
|
|
if (scp->mohawk) {
|
|
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 */
|
|
if (scp->phy_ok) {
|
|
DEVPRINTF(2, (scp->dev, "Selecting 100baseTX\n"));
|
|
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 */
|
|
DEVPRINTF(2, (scp->dev, "Selecting 10baseT\n"));
|
|
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:
|
|
DEVPRINTF(2, (scp->dev, "Selecting 10base2\n"));
|
|
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.
|
|
*/
|
|
DEVPRINTF(2, (scp->dev, "Setting LEDs\n"));
|
|
XE_SELECT_PAGE(2);
|
|
switch (IFM_SUBTYPE(scp->media)) {
|
|
case IFM_100_TX:
|
|
case IFM_10_T:
|
|
XE_OUTB(XE_LED, 0x3b);
|
|
if (scp->dingo)
|
|
XE_OUTB(0x0b, 0x04); /* 100Mbit LED */
|
|
break;
|
|
|
|
case IFM_10_2:
|
|
XE_OUTB(XE_LED, 0x3a);
|
|
break;
|
|
}
|
|
|
|
/* Restart output? */
|
|
xe_enable_intr(scp);
|
|
scp->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
xe_start(scp->ifp);
|
|
}
|
|
|
|
|
|
/*
|
|
* Hard reset (power cycle) the card.
|
|
*/
|
|
static void
|
|
xe_reset(struct xe_softc *scp) {
|
|
int s;
|
|
|
|
DEVPRINTF(2, (scp->dev, "reset\n"));
|
|
|
|
s = splimp();
|
|
|
|
/* Power down */
|
|
XE_SELECT_PAGE(4);
|
|
XE_OUTB(XE_GPR1, 0);
|
|
DELAY(40000);
|
|
|
|
/* Power up again */
|
|
if (scp->mohawk)
|
|
XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN);
|
|
else
|
|
XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN|XE_GPR1_AIC);
|
|
|
|
DELAY(40000);
|
|
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;
|
|
|
|
DEVPRINTF(2, (scp->dev, "stop\n"));
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Shut off interrupts.
|
|
*/
|
|
xe_disable_intr(scp);
|
|
|
|
/*
|
|
* Power down.
|
|
*/
|
|
XE_SELECT_PAGE(4);
|
|
XE_OUTB(XE_GPR1, 0);
|
|
XE_SELECT_PAGE(0);
|
|
if (scp->mohawk) {
|
|
/*
|
|
* set GP1 and GP2 as outputs (bits 2 & 3)
|
|
* set GP1 high to power on the ML6692 (bit 0)
|
|
* set GP2 low to power on the 10Mhz chip (bit 1)
|
|
*/
|
|
XE_SELECT_PAGE(4);
|
|
XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT|XE_GPR0_GP1_SELECT|XE_GPR0_GP1_OUT);
|
|
}
|
|
|
|
/*
|
|
* ~IFF_DRV_RUNNING == interface down.
|
|
*/
|
|
scp->ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
|
|
scp->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
scp->ifp->if_timer = 0;
|
|
|
|
(void)splx(s);
|
|
}
|
|
|
|
|
|
/*
|
|
* Enable interrupts from the card.
|
|
*/
|
|
static void
|
|
xe_enable_intr(struct xe_softc *scp) {
|
|
|
|
DEVPRINTF(2, (scp->dev, "enable_intr\n"));
|
|
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Enable interrupts */
|
|
if (scp->modem && !scp->dingo) { /* This bit is just magic */
|
|
if (!(XE_INB(0x10) & 0x01)) {
|
|
XE_OUTB(0x10, 0x11); /* Unmask master int enable bit */
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Disable interrupts from the card.
|
|
*/
|
|
static void
|
|
xe_disable_intr(struct xe_softc *scp) {
|
|
|
|
DEVPRINTF(2, (scp->dev, "disable_intr\n"));
|
|
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTB(XE_CR, 0); /* Disable interrupts */
|
|
if (scp->modem && !scp->dingo) { /* More magic */
|
|
XE_OUTB(0x10, 0x10); /* Mask the master int enable bit */
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Set up multicast filter and promiscuous modes.
|
|
*/
|
|
static void
|
|
xe_set_multicast(struct xe_softc *scp) {
|
|
struct ifnet *ifp;
|
|
struct ifmultiaddr *maddr;
|
|
unsigned count, i;
|
|
|
|
DEVPRINTF(2, (scp->dev, "set_multicast\n"));
|
|
|
|
ifp = scp->ifp;
|
|
XE_SELECT_PAGE(0x42);
|
|
|
|
/* Handle PROMISC flag */
|
|
if (ifp->if_flags & IFF_PROMISC) {
|
|
XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_PROMISCUOUS);
|
|
return;
|
|
}
|
|
else
|
|
XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_PROMISCUOUS);
|
|
|
|
/* Handle ALLMULTI flag */
|
|
if (ifp->if_flags & IFF_ALLMULTI) {
|
|
XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_ALLMULTI);
|
|
return;
|
|
}
|
|
else
|
|
XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI);
|
|
|
|
/* Iterate over multicast address list */
|
|
count = 0;
|
|
IF_ADDR_LOCK(ifp);
|
|
TAILQ_FOREACH(maddr, &ifp->if_multiaddrs, ifma_link) {
|
|
if (maddr->ifma_addr->sa_family != AF_LINK)
|
|
continue;
|
|
|
|
count++;
|
|
|
|
if (count < 10)
|
|
/* First 9 use Individual Addresses for exact matching */
|
|
xe_set_addr(scp, LLADDR((struct sockaddr_dl *)maddr->ifma_addr), count);
|
|
else
|
|
if (scp->mohawk)
|
|
/* Use hash filter on Mohawk and Dingo */
|
|
xe_mchash(scp, LLADDR((struct sockaddr_dl *)maddr->ifma_addr));
|
|
else
|
|
/* Nowhere else to put them on CE2 */
|
|
break;
|
|
}
|
|
IF_ADDR_UNLOCK(ifp);
|
|
|
|
DEVPRINTF(2, (scp->dev, "set_multicast: count = %u\n", count));
|
|
|
|
/* Now do some cleanup and enable multicast handling as needed */
|
|
if (count == 0) {
|
|
/* Disable all multicast handling */
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~(XE_SWC1_IA_ENABLE|XE_SWC1_ALLMULTI));
|
|
if (scp->mohawk) {
|
|
XE_SELECT_PAGE(0x02);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE);
|
|
}
|
|
}
|
|
else if (count < 10) {
|
|
/* Full in any unused Individual Addresses with our MAC address */
|
|
for (i = count + 1; i < 10; i++)
|
|
xe_set_addr(scp, IF_LLADDR(scp->ifp), i);
|
|
/* Enable Individual Address matching only */
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) | XE_SWC1_IA_ENABLE);
|
|
if (scp->mohawk) {
|
|
XE_SELECT_PAGE(0x02);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE);
|
|
}
|
|
}
|
|
else {
|
|
if (scp->mohawk) {
|
|
/* Check whether hash table is full */
|
|
XE_SELECT_PAGE(0x58);
|
|
for (i = 0x08; i < 0x10; i++)
|
|
if (XE_INB(i) != 0xff)
|
|
break;
|
|
if (i == 0x10) {
|
|
/* Hash table full - enable promiscuous multicast matching */
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_IA_ENABLE) | XE_SWC1_ALLMULTI);
|
|
XE_SELECT_PAGE(0x02);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE);
|
|
}
|
|
else {
|
|
/* Enable hash table and Individual Address matching */
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) | XE_SWC1_IA_ENABLE);
|
|
XE_SELECT_PAGE(0x02);
|
|
XE_OUTB(XE_MSR, XE_INB(XE_MSR) | XE_MSR_HASH_TABLE);
|
|
}
|
|
}
|
|
else {
|
|
/* Enable promiscuous multicast matching */
|
|
XE_SELECT_PAGE(0x42);
|
|
XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_IA_ENABLE) | XE_SWC1_ALLMULTI);
|
|
}
|
|
}
|
|
|
|
XE_SELECT_PAGE(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Copy the Ethernet multicast address in addr to the on-chip registers for
|
|
* Individual Address idx. Assumes that addr is really a multicast address
|
|
* and that idx > 0 (slot 0 is always used for the card MAC address).
|
|
*/
|
|
static void
|
|
xe_set_addr(struct xe_softc *scp, u_int8_t* addr, unsigned idx) {
|
|
u_int8_t page, reg;
|
|
unsigned i;
|
|
|
|
/*
|
|
* Individual Addresses are stored in registers 8-F of pages 0x50-0x57. IA1
|
|
* therefore starts at register 0xE on page 0x50. The expressions below
|
|
* compute the starting page and register for any IA index > 0.
|
|
*/
|
|
--idx;
|
|
page = 0x50 + idx%4 + idx/4*3;
|
|
reg = 0x0e - 2 * (idx%4);
|
|
|
|
DEVPRINTF(3, (scp->dev, "set_addr: idx = %u, page = 0x%02x, reg = 0x%02x\n",
|
|
idx+1, page, reg));
|
|
|
|
/*
|
|
* Copy the IA bytes. Note that the byte order is reversed for Mohawk and
|
|
* Dingo wrt. CE2 hardware.
|
|
*/
|
|
XE_SELECT_PAGE(page);
|
|
for (i = 0; i < 6; i++) {
|
|
if (i > 0) {
|
|
DPRINTF(3, (":%02x", addr[i]));
|
|
}
|
|
else {
|
|
DEVPRINTF(3, (scp->dev, "set_addr: %02x", addr[0]));
|
|
}
|
|
XE_OUTB(reg, addr[scp->mohawk ? 5 - i : i]);
|
|
if (++reg == 0x10) {
|
|
reg = 0x08;
|
|
XE_SELECT_PAGE(++page);
|
|
}
|
|
}
|
|
DPRINTF(3, ("\n"));
|
|
}
|
|
|
|
|
|
/*
|
|
* Set the appropriate bit in the multicast hash table for the supplied
|
|
* Ethernet multicast address addr. Assumes that addr is really a multicast
|
|
* address.
|
|
*/
|
|
static void
|
|
xe_mchash(struct xe_softc* scp, const uint8_t *addr) {
|
|
int bit;
|
|
uint8_t byte, hash;
|
|
|
|
hash = ether_crc32_le(addr, ETHER_ADDR_LEN) & 0x3F;
|
|
|
|
/* Top 3 bits of hash give register - 8, bottom 3 give bit within register */
|
|
byte = hash >> 3 | 0x08;
|
|
bit = 0x01 << (hash & 0x07);
|
|
|
|
DEVPRINTF(3, (scp->dev, "set_hash: hash = 0x%02x, byte = 0x%02x, bit = 0x%02x\n", hash, byte, bit));
|
|
|
|
XE_SELECT_PAGE(0x58);
|
|
XE_OUTB(byte, XE_INB(byte) | bit);
|
|
}
|
|
|
|
|
|
/*
|
|
* Write an outgoing packet to the card using programmed I/O.
|
|
*/
|
|
static int
|
|
xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp) {
|
|
unsigned len, pad;
|
|
unsigned char wantbyte;
|
|
u_int8_t *data;
|
|
u_int8_t savebyte[2];
|
|
|
|
/* Get total packet length */
|
|
if (mbp->m_flags & M_PKTHDR)
|
|
len = mbp->m_pkthdr.len;
|
|
else {
|
|
struct mbuf* mbp2 = mbp;
|
|
for (len = 0; mbp2 != NULL; len += mbp2->m_len, mbp2 = mbp2->m_next);
|
|
}
|
|
|
|
DEVPRINTF(3, (scp->dev, "pio_write_packet: len = %u\n", len));
|
|
|
|
/* Packets < minimum length may need to be padded out */
|
|
pad = 0;
|
|
if (len < scp->tx_min) {
|
|
pad = scp->tx_min - len;
|
|
len = scp->tx_min;
|
|
}
|
|
|
|
/* Check transmit buffer space */
|
|
XE_SELECT_PAGE(0);
|
|
XE_OUTW(XE_TRS, len+2); /* Only effective on rev. 1 CE2 cards */
|
|
if ((XE_INW(XE_TSO) & 0x7fff) <= 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 */
|
|
bus_space_write_multi_2(scp->bst, scp->bsh, XE_EDP, (u_int16_t *) 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;
|
|
}
|
|
|
|
/*
|
|
* Send last byte of odd-length packets
|
|
*/
|
|
if (wantbyte)
|
|
XE_OUTB(XE_EDP, savebyte[0]);
|
|
|
|
/*
|
|
* Can just tell CE3 cards to send; short packets will be padded out with
|
|
* random cruft automatically. For CE2, manually pad the packet with
|
|
* garbage; it will be sent when the required number or bytes have been
|
|
* delivered to the card.
|
|
*/
|
|
if (scp->mohawk)
|
|
XE_OUTB(XE_CR, XE_CR_TX_PACKET | XE_CR_RESTART_TX | XE_CR_ENABLE_INTR);
|
|
else if (pad > 0) {
|
|
if (pad & 0x01)
|
|
XE_OUTB(XE_EDP, 0xaa);
|
|
pad >>= 1;
|
|
while (pad > 0) {
|
|
XE_OUTW(XE_EDP, 0xdead);
|
|
pad--;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/**************************************************************
|
|
* *
|
|
* 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.
|
|
* XXX - this stuff shouldn't be here. It should all be abstracted off to
|
|
* XXX - some kind of common MII-handling code, shared by all drivers. But
|
|
* XXX - that's a whole other mission.
|
|
*/
|
|
#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) {
|
|
DEVPRINTF(2, (scp->dev, "no PHY found, %0x\n", status));
|
|
return 0;
|
|
}
|
|
else {
|
|
DEVPRINTF(2, (scp->dev, "PHY OK!\n"));
|
|
|
|
/* 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);
|
|
ack = XE_INB(XE_GPR2) & XE_MII_RDD;
|
|
XE_MII_SET(XE_MII_CLK);
|
|
DELAY(1);
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
|
|
/*
|
|
* A bit of debugging code.
|
|
*/
|
|
static void
|
|
xe_mii_dump(struct xe_softc *scp) {
|
|
int i, s;
|
|
|
|
s = splimp();
|
|
|
|
device_printf(scp->dev, "MII registers: ");
|
|
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");
|
|
|
|
(void)splx(s);
|
|
}
|
|
|
|
#if 0
|
|
void
|
|
xe_reg_dump(struct xe_softc *scp) {
|
|
int page, i, s;
|
|
|
|
s = splimp();
|
|
|
|
device_printf(scp->dev, "Common registers: ");
|
|
for (i = 0; i < 8; i++) {
|
|
printf(" %2.2x", XE_INB(i));
|
|
}
|
|
printf("\n");
|
|
|
|
for (page = 0; page <= 8; page++) {
|
|
device_printf(scp->dev, "Register page %2.2x: ", page);
|
|
XE_SELECT_PAGE(page);
|
|
for (i = 8; i < 16; i++) {
|
|
printf(" %2.2x", XE_INB(i));
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
for (page = 0x10; page < 0x5f; page++) {
|
|
if ((page >= 0x11 && page <= 0x3f) ||
|
|
(page == 0x41) ||
|
|
(page >= 0x43 && page <= 0x4f) ||
|
|
(page >= 0x59))
|
|
continue;
|
|
device_printf(scp->dev, "Register page %2.2x: ", page);
|
|
XE_SELECT_PAGE(page);
|
|
for (i = 8; i < 16; i++) {
|
|
printf(" %2.2x", XE_INB(i));
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
(void)splx(s);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
xe_activate(device_t dev)
|
|
{
|
|
struct xe_softc *sc = device_get_softc(dev);
|
|
int start, err, i;
|
|
|
|
DEVPRINTF(2, (dev, "activate\n"));
|
|
|
|
if (!sc->modem) {
|
|
sc->port_rid = 0; /* 0 is managed by pccard */
|
|
sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
|
|
&sc->port_rid, 0, ~0, 16, RF_ACTIVE);
|
|
}
|
|
else if (sc->dingo) {
|
|
/*
|
|
* Find a 16 byte aligned ioport for the card.
|
|
*/
|
|
DEVPRINTF(1, (dev, "Finding an aligned port for RealPort\n"));
|
|
sc->port_rid = 1; /* 0 is managed by pccard */
|
|
start = 0x100;
|
|
do {
|
|
sc->port_res = bus_alloc_resource(dev,
|
|
SYS_RES_IOPORT, &sc->port_rid, start, 0x3ff, 16,
|
|
RF_ACTIVE);
|
|
if (sc->port_res == 0)
|
|
break; /* we failed */
|
|
if ((rman_get_start(sc->port_res) & 0xf) == 0)
|
|
break; /* good */
|
|
bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid,
|
|
sc->port_res);
|
|
start = (rman_get_start(sc->port_res) + 15) & ~0xf;
|
|
} while (1);
|
|
DEVPRINTF(1, (dev, "RealPort port 0x%0lx, size 0x%0lx\n",
|
|
bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid),
|
|
bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid)));
|
|
}
|
|
else if (sc->ce2) {
|
|
/*
|
|
* Find contiguous I/O port for the Ethernet function on CEM2 and
|
|
* CEM3 cards. We allocate window 0 wherever pccard has decided
|
|
* it should be, then find an available window adjacent to it for
|
|
* the second function. Not sure that both windows are actually
|
|
* needed.
|
|
*/
|
|
DEVPRINTF(1, (dev, "Finding I/O port for CEM2/CEM3\n"));
|
|
sc->ce2_port_rid = 0; /* 0 is managed by pccard */
|
|
sc->ce2_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
|
|
&sc->ce2_port_rid, 0, ~0,
|
|
8, RF_ACTIVE);
|
|
if (!sc->ce2_port_res) {
|
|
DEVPRINTF(1, (dev, "Cannot allocate I/O port for modem\n"));
|
|
xe_deactivate(dev);
|
|
return ENOMEM;
|
|
}
|
|
|
|
sc->port_rid = 1;
|
|
start = bus_get_resource_start(dev, SYS_RES_IOPORT,
|
|
sc->ce2_port_rid);
|
|
for (i = 0; i < 2; i++) {
|
|
start += (i == 0 ? 8 : -24);
|
|
sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
|
|
&sc->port_rid, start, start + 15, 16, RF_ACTIVE);
|
|
if (sc->port_res == 0)
|
|
continue; /* Failed, try again if possible */
|
|
if (bus_get_resource_start(dev, SYS_RES_IOPORT,
|
|
sc->port_rid) == start)
|
|
break; /* Success! */
|
|
|
|
bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid,
|
|
sc->port_res);
|
|
sc->port_res = 0;
|
|
}
|
|
DEVPRINTF(1, (dev, "CEM2/CEM3 port 0x%0lx, size 0x%0lx\n",
|
|
bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid),
|
|
bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid)));
|
|
}
|
|
|
|
if (!sc->port_res) {
|
|
DEVPRINTF(1, (dev, "Cannot allocate ioport\n"));
|
|
xe_deactivate(dev);
|
|
return ENOMEM;
|
|
}
|
|
|
|
sc->irq_rid = 0;
|
|
sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
|
|
RF_ACTIVE);
|
|
if (!sc->irq_res) {
|
|
DEVPRINTF(1, (dev, "Cannot allocate irq\n"));
|
|
xe_deactivate(dev);
|
|
return ENOMEM;
|
|
}
|
|
if ((err = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET, NULL,
|
|
xe_intr, sc, &sc->intrhand)) != 0) {
|
|
xe_deactivate(dev);
|
|
return err;
|
|
}
|
|
|
|
sc->bst = rman_get_bustag(sc->port_res);
|
|
sc->bsh = rman_get_bushandle(sc->port_res);
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
xe_deactivate(device_t dev)
|
|
{
|
|
struct xe_softc *sc = device_get_softc(dev);
|
|
|
|
DEVPRINTF(2, (dev, "deactivate\n"));
|
|
xe_disable_intr(sc);
|
|
|
|
if (sc->intrhand)
|
|
bus_teardown_intr(dev, sc->irq_res, sc->intrhand);
|
|
sc->intrhand = 0;
|
|
if (sc->port_res)
|
|
bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid,
|
|
sc->port_res);
|
|
sc->port_res = 0;
|
|
if (sc->ce2_port_res)
|
|
bus_release_resource(dev, SYS_RES_IOPORT, sc->ce2_port_rid,
|
|
sc->ce2_port_res);
|
|
sc->ce2_port_res = 0;
|
|
if (sc->irq_res)
|
|
bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid,
|
|
sc->irq_res);
|
|
sc->irq_res = 0;
|
|
return;
|
|
}
|