/*- * Copyright (c) 1998, 1999 Scott Mitchell * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: if_xe.c,v 1.19 1999/04/15 22:15:53 scott Exp $ */ /* * Portions of this software were derived from Werner Koch's xirc2ps driver * for Linux under the terms of the following license (from v1.30 of the * xirc2ps driver): * * Copyright (c) 1997 by Werner Koch (dd9jn) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, and the entire permission notice in its entirety, * including the disclaimer of warranties. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The * following cards are currently known to work with the driver: * Xircom CreditCard 10/100 (CE3) * Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56) * Xircom RealPort Ethernet 10/100 * Xircom RealPort Ethernet 10/100 + Modem 56 (REM56, REM56G) * Intel EtherExpress Pro/100 PC Card Mobile Adapter 16 (Pro/100 M16A) * Compaq Netelligent 10/100 PC Card (CPQ-10/100) * * Some other cards *should* work, but support for them is either broken or in * an unknown state at the moment. I'm always interested in hearing from * people who own any of these cards: * Xircom CreditCard 10Base-T (PS-CE2-10) * Xircom CreditCard Ethernet + ModemII (CEM2) * Xircom CEM28 and CEM33 Ethernet/Modem cards (may be variants of CEM2?) * * Thanks to all who assisted with the development and testing of the driver, * especially: Werner Koch, Duke Kamstra, Duncan Barclay, Jason George, Dru * Nelson, Mike Kephart, Bill Rainey and Douglas Rand. Apologies if I've left * out anyone who deserves a mention here. * * Special thanks to Ade Lovett for both hosting the mailing list and doing * the CEM56/REM56 support code; and the FreeBSD UK Users' Group for hosting * the web pages. * * Contact points: * * Driver web page: http://ukug.uk.freebsd.org/~scott/xe_drv/ * * Mailing list: http://www.lovett.com/lists/freebsd-xircom/ * or send "subscribe freebsd-xircom" to * * Author email: */ #define XE_DEBUG 1 #include "xe.h" #include "card.h" #include "apm.h" #include "bpfilter.h" #if NXE > 0 #if NCARD > 0 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif /* NBPFILTER > 0 */ #include #include #include #include #if NAPM > 0 #include #endif /* NAPM > 0 */ #include #include #include #include /* * One of these structures per allocated device */ struct xe_softc { struct arpcom arpcom; struct ifmedia ifmedia; struct callout_handle chand; struct ifmib_iso_8802_3 mibdata; struct isa_device *dev; struct pccard_devinfo *crd; struct ifnet *ifp; struct ifmedia *ifm; char *card_type; /* Card model name */ char *vendor; /* Card manufacturer */ int unit; /* Unit number, from dev->id_unit */ int srev; /* Silicon revision */ int tx_queued; /* Packets currently waiting to transmit */ int tx_ptr; /* Last value of PTR reg on card */ int tx_collisions; /* Collisions since last successful send */ int tx_timeouts; /* Count of transmit timeouts */ int autoneg_status; /* Autonegotiation progress state */ int media; /* Private media word */ u_char modem; /* 1 = Multifunction card with modem */ u_char ce3; /* 1 = CE3 class (100Mbit) adapter */ u_char cem56; /* 1 = CEM56 class (CE3 + 56Kbps modem) adapter */ u_char phy_ok; /* 1 = MII-compliant PHY found and initialised */ u_char gone; /* 1 = Card bailed out */ #if NAPM > 0 struct apmhook suspend_hook; struct apmhook resume_hook; #endif /* NAPM > 0 */ }; static struct xe_softc *sca[MAXSLOT]; static int iob[MAXSLOT]; /* XXX - very gross */ /* * MII command structure */ struct xe_mii_frame { u_int8_t mii_stdelim; u_int8_t mii_opcode; u_int8_t mii_phyaddr; u_int8_t mii_regaddr; u_int8_t mii_turnaround; u_int16_t mii_data; }; /* * For accessing card registers */ #define XE_INB(r) inb(scp->dev->id_iobase+(r)) #define XE_INW(r) inw(scp->dev->id_iobase+(r)) #define XE_OUTB(r, b) outb(scp->dev->id_iobase+(r), (b)) #define XE_OUTW(r, w) outw(scp->dev->id_iobase+(r), (w)) #define XE_SELECT_PAGE(p) XE_OUTB(XE_PSR, (p)) /* * Horrid stuff for accessing CIS tuples */ #define CARD_MAJOR 50 #define CISTPL_BUFSIZE 512 #define CISTPL_TYPE(tpl) tpl[0] #define CISTPL_LEN(tpl) tpl[2] #define CISTPL_DATA(tpl,pos) tpl[4 + ((pos)<<1)] /* * Media autonegotiation progress constants */ #define XE_AUTONEG_NONE 0 /* No autonegotiation in progress */ #define XE_AUTONEG_WAITING 1 /* Waiting for transmitter to go idle */ #define XE_AUTONEG_STARTED 2 /* Waiting for autonegotiation to complete */ #define XE_AUTONEG_100TX 3 /* Trying to force 100baseTX link */ #define XE_AUTONEG_FAIL 4 /* Autonegotiation failed */ /* * Prototypes start here */ static int xe_probe (struct isa_device *dev); static int xe_card_init (struct pccard_devinfo *devi); static int xe_attach (struct isa_device *dev); static void xe_init (void *xscp); static void xe_start (struct ifnet *ifp); static int xe_ioctl (struct ifnet *ifp, u_long command, caddr_t data); static int xe_card_intr (struct pccard_devinfo *devi); static void xe_watchdog (struct ifnet *ifp); static int xe_media_change (struct ifnet *ifp); static void xe_media_status (struct ifnet *ifp, struct ifmediareq *mrp); static timeout_t xe_setmedia; static void xe_hard_reset (struct xe_softc *scp); static void xe_soft_reset (struct xe_softc *scp); static void xe_stop (struct xe_softc *scp); static void xe_enable_intr (struct xe_softc *scp); static void xe_disable_intr (struct xe_softc *scp); static void xe_setmulti (struct xe_softc *scp); static void xe_setaddrs (struct xe_softc *scp); static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp); static void xe_card_unload (struct pccard_devinfo *devi); /* * MII functions */ static void xe_mii_sync (struct xe_softc *scp); static int xe_mii_init (struct xe_softc *scp); static void xe_mii_send (struct xe_softc *scp, u_int32_t bits, int cnt); static int xe_mii_readreg (struct xe_softc *scp, struct xe_mii_frame *frame); static int xe_mii_writereg (struct xe_softc *scp, struct xe_mii_frame *frame); static u_int16_t xe_phy_readreg (struct xe_softc *scp, u_int16_t reg); static void xe_phy_writereg (struct xe_softc *scp, u_int16_t reg, u_int16_t data); /* * Debug functions */ #ifdef XE_DEBUG #define XE_REG_DUMP(scp) xe_reg_dump((scp)) #define XE_MII_DUMP(scp) xe_mii_dump((scp)) static void xe_reg_dump (struct xe_softc *scp); static void xe_mii_dump (struct xe_softc *scp); #else #define XE_REG_DUMP(scp) #define XE_MII_DUMP(scp) #endif #if NAPM > 0 /* * APM hook functions */ static int xe_suspend (void *xunit); static int xe_resume (void *xunit); #endif /* NAPM > 0 */ /* * PCMCIA driver hooks */ #ifdef PCCARD_MODULE PCCARD_MODULE(xe, xe_card_init, xe_card_unload, xe_card_intr, 0, net_imask); #else static struct pccard_device xe_info = { /* For pre 3.1-STABLE code */ "xe", xe_card_init, xe_card_unload, xe_card_intr, 0, &net_imask }; DATA_SET(pccarddrv_set, xe_info); #endif /* PCCARD_MODULE */ /* * ISA driver hooks. I'd like to do without these but the kernel config stuff * seems to require them. */ struct isa_driver xedriver = { xe_probe, xe_attach, "xe" }; /* * ISA probe routine. * All of the supported devices are PCMCIA cards. I have no idea if it's even * possible to successfully probe/attach these at boot time (pccardd normally * does a lot of setup work) so I don't even bother trying. */ static int xe_probe (struct isa_device *dev) { #ifdef XE_DEBUG printf("xe%d: probe, iobase = %#x\n", dev->id_unit, dev->id_iobase); #endif bzero(sca, MAXSLOT * sizeof(sca[0])); iob[dev->id_unit] = dev->id_iobase; return 0; } /* * Two routines to read from/write to the attribute memory * the write portion is used only for fixing up the RealPort cards, * the reader portion was needed for debugging info, and duplicated some * code in xe_card_init(), so it appears here instead with suitable * modifications to xe_card_init() * -aDe Lovett */ static int xe_memwrite(struct pccard_devinfo *devi, off_t offset, u_char byte) { struct iovec iov; struct uio uios; iov.iov_base = &byte; iov.iov_len = sizeof(byte); uios.uio_iov = &iov; uios.uio_iovcnt = 1; uios.uio_offset = offset; uios.uio_resid = sizeof(byte); uios.uio_segflg = UIO_SYSSPACE; uios.uio_rw = UIO_WRITE; uios.uio_procp = 0; return cdevsw[CARD_MAJOR]->d_write(makedev(CARD_MAJOR, devi->slt->slotnum), &uios, 0); } static int xe_memread(struct pccard_devinfo *devi, off_t offset, u_char *buf, int size) { struct iovec iov; struct uio uios; iov.iov_base = buf; iov.iov_len = size; uios.uio_iov = &iov; uios.uio_iovcnt = 1; uios.uio_offset = offset; uios.uio_resid = size; uios.uio_segflg = UIO_SYSSPACE; uios.uio_rw = UIO_READ; uios.uio_procp = 0; return cdevsw[CARD_MAJOR]->d_read(makedev(CARD_MAJOR, devi->slt->slotnum), &uios, 0); } /* * Hacking for RealPort cards */ static int xe_cem56fix(struct xe_softc *scp) { struct pccard_devinfo *devi; struct slot *slt; struct slot_ctrl *ctrl; int ioport, fail; /* initialise a few variables */ devi = scp->crd; slt = devi->slt; ctrl = slt->ctrl; /* allocate a new I/O slot for the ethernet */ /* XXX: ctrl->mapio() always appears to return 0 (success), so * this may cause problems if another device is listening * on 0x300 already */ slt->io[1].window = 1; slt->io[1].flags = IODF_WS|IODF_16BIT|IODF_ZEROWS|IODF_ACTIVE; slt->io[1].size = 0x10; if (iob[scp->unit] == -1) { for (ioport = 0x300; ioport < 0x400; ioport += 0x10) { slt->io[1].start = ioport; if ((fail = ctrl->mapio( slt, 1 )) == 0) break; } } else { ioport = iob[scp->unit]; slt->io[1].start = ioport; fail = ctrl->mapio(slt, 1); } /* did we find one? */ if (fail) { printf( "xe%d: xe_cem56fix: no free address space\n", scp->unit ); return -1; } /* munge the id_iobase entry for use by the rest of the driver */ #ifdef XE_DEBUG printf( "xe%d: using 0x%x for RealPort ethernet\n", scp->unit, ioport ); #endif scp->dev->id_iobase = ioport; scp->dev->id_alive = 0x10; /* magic to set up the ethernet */ xe_memwrite( devi, 0x800, 0x47 ); xe_memwrite( devi, 0x80a, ioport & 0xff ); xe_memwrite( devi, 0x80c, (ioport >> 8) & 0xff ); xe_memwrite( devi, 0x820, 0x01 ); xe_memwrite( devi, 0x822, 0x0c ); xe_memwrite( devi, 0x824, 0x00 ); xe_memwrite( devi, 0x826, 0x00 ); xe_memwrite( devi, 0x828, 0x00 ); /* success! */ return 0; } /* * PCMCIA probe routine. * Probe and identify the device. Called by the slot manager when the card is * inserted or the machine wakes up from suspend mode. Assmes that the slot * structure has been initialised already. */ static int xe_card_init(struct pccard_devinfo *devi) { struct xe_softc *scp; struct isa_device *dev; u_char buf[CISTPL_BUFSIZE]; u_char ver_str[CISTPL_BUFSIZE>>1]; off_t offs; int unit, success, rc, i; unit = devi->isahd.id_unit; scp = sca[unit]; dev = &devi->isahd; success = 0; #ifdef XE_DEBUG printf("xe: Probing for unit %d\n", unit); #endif /* Check that unit number is OK */ if (unit > MAXSLOT) { printf("xe: bad unit (%d)\n", unit); return (ENODEV); } /* Don't attach an active device */ if (scp && !scp->gone) { printf("xe: unit already attached (%d)\n", unit); return (EBUSY); } /* Allocate per-instance storage */ if (!scp) { if ((scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT)) == NULL) { printf("xe%d: failed to allocage driver storage\n", unit); return (ENOMEM); } bzero(scp, sizeof(*scp)); } /* Re-attach an existing device */ if (scp->gone) { scp->gone = 0; return 0; } /* Grep through CIS looking for relevant tuples */ offs = 0; do { u_int16_t vendor; u_int8_t rev, media, prod; /* * Read tuples one at a time into buf. Sucks, but it only happens once. * XXX - If the stuff we need isn't in attribute memory, or (worse yet) * XXX - attribute memory isn't mapped, we're FUBAR. Maybe need to do an * XXX - ioctl on the card device and follow links? * XXX - Not really the driver's problem, PCCARD should handle all this! */ if ((rc = xe_memread( devi, offs, buf, CISTPL_BUFSIZE )) == 0) { switch (CISTPL_TYPE(buf)) { case 0x15: /* Grab version string (needed to ID some weird CE2's) */ #ifdef XE_DEBUG printf("xe%d: Got version string (0x15)\n", unit); #endif for (i = 0; i < CISTPL_LEN(buf); ver_str[i] = CISTPL_DATA(buf, i++)); ver_str[i] = '\0'; ver_str[(CISTPL_BUFSIZE>>1) - 1] = CISTPL_LEN(buf); success++; break; case 0x20: /* Figure out what type of card we have */ #ifdef XE_DEBUG printf("xe%d: Got card ID (0x20)\n", unit); #endif vendor = CISTPL_DATA(buf, 0) + (CISTPL_DATA(buf, 1) << 8); rev = CISTPL_DATA(buf, 2); media = CISTPL_DATA(buf, 3); prod = CISTPL_DATA(buf, 4); switch (vendor) { /* Get vendor ID */ case 0x0105: scp->vendor = "Xircom"; break; case 0x0138: case 0x0183: scp->vendor = "Compaq"; break; case 0x0089: scp->vendor = "Intel"; break; default: scp->vendor = "Unknown"; } if (!((prod & 0x40) && (media & 0x01))) { #ifdef XE_DEBUG printf("xe%d: Not a PCMCIA Ethernet card!\n", unit); #endif rc = ENODEV; /* Not a PCMCIA Ethernet device */ } else { if (media & 0x10) { /* Ethernet/modem cards */ #ifdef XE_DEBUG printf("xe%d: Card is Ethernet/modem combo\n", unit); #endif scp->modem = 1; switch (prod & 0x0f) { case 1: scp->card_type = "CEM"; break; case 2: scp->card_type = "CEM2"; break; case 3: scp->card_type = "CEM3"; break; case 4: scp->card_type = "CEM33"; break; case 5: scp->ce3 = 1; scp->card_type = "CEM56M"; break; case 6: case 7: /* Some kind of RealPort card */ scp->ce3 = 1; scp->cem56 = 1; scp->card_type = "CEM56"; break; default: rc = ENODEV; } } else { /* Ethernet-only cards */ #ifdef XE_DEBUG printf("xe%d: Card is Ethernet only\n", unit); #endif switch (prod & 0x0f) { case 1: scp->card_type = "CE"; break; case 2: scp->card_type = "CE2"; break; case 3: scp->ce3 = 1; scp->card_type = "CE3"; break; default: rc = ENODEV; } } } success++; break; 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; /* Hack RealPorts into submission */ if (scp->cem56 && xe_cem56fix(scp) < 0) { printf( "xe%d: Unable to fix your RealPort\n", unit ); sca[unit] = 0; free(scp, M_DEVBUF); return ENODEV; } /* 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. FIX IT! */ 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. * XXX - 99/3/28: Changed the first i-- to an i++, maybe that'll * XXX - fix it? It seems as though the previous version would * XXX - have caused an infinite loop (what, another one?). */ 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 - Could 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; #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 { /* * 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 { #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; #ifdef XE_DEBUG printf("xe%d: silicon revision = %d\n", scp->unit, scp->srev); #endif /* * 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, 0x01); XE_SELECT_PAGE(0x40); XE_OUTB(XE_OCR, XE_OCR_OFFLINE); /*xe_reg_dump(scp);*/ xe_setaddrs(scp); /*xe_reg_dump(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 - This doesn't work right, but I'm not sure why yet. We seem to be * XXX - doing much the same as the Linux code, which is weird enough that * XXX - it's probably right (despite my earlier comments to the contrary). * XXX - I wonder if this thing has a multicast hash filter like most other * XXX - Ethernet hardware seems to? */ 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 XE_DEBUG > 1 if (i) printf(":%x", addr[i]); else printf("xe%d: individual addresses %d: %x", scp->unit, slot, addr[0]); #endif 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]); } #if XE_DEBUG > 1 printf("\n"); #endif } 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, 0xdead); pad--; } 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 /* * A bit of debugging code. */ static void xe_mii_dump(struct xe_softc *scp) { int i, s; s = splimp(); printf("xe%d: MII registers: ", scp->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"); (void)splx(s); } static void xe_reg_dump(struct xe_softc *scp) { int page, i, s; s = splimp(); printf("xe%d: Common registers: ", scp->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: ", scp->unit, 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; printf("xe%d: Register page %2.2x: ", scp->unit, page); XE_SELECT_PAGE(page); for (i = 8; i < 16; i++) { printf(" %2.2x", XE_INB(i)); } printf("\n"); } (void)splx(s); } #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) { #ifdef XE_DEBUG struct xe_softc *scp = sca[(int)xunit]; 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) { #ifdef XE_DEBUG struct xe_softc *scp = sca[(int)xunit]; printf("xe%d: APM resume\n", scp->unit); #endif return 0; } #endif /* NAPM > 0 */ #endif /* NCARD > 0 */ #endif /* NXE > 0 */