diff --git a/sys/dev/pccard/if_xe.c b/sys/dev/pccard/if_xe.c index 6a25e8c16041..03c57093494d 100644 --- a/sys/dev/pccard/if_xe.c +++ b/sys/dev/pccard/if_xe.c @@ -1,2153 +1,2213 @@ /*- * 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 1.13 1999/01/24 22:14:54 root Exp $ + * $Id: if_xe.c,v 1.14 1999/02/22 14:16:14 root 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 and media are supported (Ethernet part only on the * multifunction CEM cards): * CE2 10BASE-2, 10BASE-T (I think) * CEM28 ditto * CEM33 ditto * CE3 10BASE-T, 100BASE-TX * CEM56 ditto - * Certain Intel and Compaq branded cards are also rumoured to work. + * RealPort ditto + * Some Compaq and Intel cards using the Xircom hardware are also known to + * work. See the website for full details of supported hardware. * - * + * * - * + * The web page for the driver is located at: + * http://www.dcs.qmw.ac.uk/~scott/xe_drv/ + * Check here first for new releases, bug fixes, etc. + * + * Please send all feedback, bug reports, patches, etc. to + * . Mail with the tag "[XE]" in the subject line will + * be automatically filed in an appropriate folder where I'm more likely to + * see it and respond promptly. */ #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 ifmib_iso_8802_3 mibdata; -#if NAPM > 0 - struct apmhook suspend_hook; - struct apmhook resume_hook; -#endif /* NAPM > 0 */ + 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 modem; /* 1 = Multifunction card with modem */ - int ce3; /* 1 = CE3 class (100Mbit) adapter */ - int cem56; /* 1 = CEM56 class (CE3 + 56Kbps modem) adapter */ - int gone; /* 1 = Card bailed out */ 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 probe; /* XXX 0 = use value in port, 1 = look for a port */ - int port; /* XXX 0 = Unknown, 1 = 10Base2, 2 = 10BaseT, 4 = 100BaseTX */ + 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]; +/* + * 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)) - /* - * PC-Card driver routines + * Horrid stuff for accessing CIS tuples */ -static int xe_card_init (struct pccard_devinfo *devi); -static void xe_card_unload (struct pccard_devinfo *devi); -static int xe_card_intr (struct pccard_devinfo *devi); +#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)] /* - * isa_driver member functions + * Media autonegotiation progress constants */ -static int xe_probe (struct isa_device *dev); -static int xe_attach (struct isa_device *dev); +#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 */ -/* - * ifnet member functions - */ -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 void xe_watchdog (struct ifnet *ifp); /* - * Other random functions + * Prototypes start here */ -static void xe_stop (struct xe_softc *scp); -static void xe_reset (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); -#ifdef XE_DEBUG -static void xe_reg_dump (struct xe_softc *scp); -#endif +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); /* - * Media selection functions + * MII functions */ -static int xe_media_change (struct ifnet *ifp); -static void xe_media_status (struct ifnet *ifp, struct ifmediareq *ifm); +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); /* - * MII (Medium Independent Interface) functions + * Debug functions */ -static void xe_mii_clock (struct xe_softc *scp); -static u_int16_t xe_mii_getbit (struct xe_softc *scp); -static void xe_mii_putbit (struct xe_softc *scp, u_int16_t data); -static void xe_mii_putbits (struct xe_softc *scp, u_int16_t data, int len); -static u_int16_t xe_mii_read (struct xe_softc *scp, u_int8_t phy, u_int8_t reg); -static void xe_mii_write (struct xe_softc *scp, u_int8_t phy, u_int8_t reg, u_int16_t data, int len); -static int xe_mii_init (struct xe_softc *scp); #ifdef XE_DEBUG -static void xe_mii_dump (struct xe_softc *scp); +#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); +static int xe_suspend (void *xunit); +static int xe_resume (void *xunit); #endif /* NAPM > 0 */ /* * PCMCIA driver hooks */ static struct pccard_device xe_info = { "xe", xe_card_init, xe_card_unload, xe_card_intr, 0, &net_imask }; DATA_SET(pccarddrv_set, xe_info); - /* - * ISA driver hooks + * 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) { bzero(sca, MAXSLOT * sizeof(sca[0])); 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. + * 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_attach (struct isa_device *dev) +xe_card_init(struct pccard_devinfo *devi) { - struct ifnet *ifp; struct xe_softc *scp; - int unit, i; + struct isa_device *dev; + struct uio uios; + struct iovec iov; + u_char buf[CISTPL_BUFSIZE]; + u_char ver_str[CISTPL_BUFSIZE>>1]; + off_t offs; + int unit, success, rc, i; - unit = dev->id_unit; + unit = devi->isahd.id_unit; scp = sca[unit]; - ifp = &(scp->arpcom.ac_if); - - /* - * Power down the interface - */ - xe_stop(scp); - - /* - * Initialise the ifnet structure - */ - if (!ifp->if_name) { - ifp->if_softc = scp; - ifp->if_name = "xe"; - ifp->if_unit = unit; - ifp->if_timer = 0; - ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); - ifp->if_linkmib = &scp->mibdata; - ifp->if_linkmiblen = sizeof scp->mibdata; - ifp->if_output = ether_output; - ifp->if_start = xe_start; - ifp->if_ioctl = xe_ioctl; - ifp->if_watchdog = xe_watchdog; - ifp->if_init = xe_init; - ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; - - if_attach(ifp); - ether_ifattach(ifp); - } + dev = &devi->isahd; + success = 0; -#if NBPFILTER > 0 - /* - * If BPF is in the kernel, call the attach for it - */ - bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); +#ifdef XE_DEBUG + printf("xe: Probing for unit %d\n", unit); #endif - /* - * Print some useful information - */ - printf("\nxe%d: %s %s%s%s\n", - unit, - scp->vendor, - scp->card_type, - scp->ce3 ? ", 100Mbps capable" : "", - scp->cem56 ? ", with modem" : ""); - printf("xe%d: Ethernet address %02x", unit, scp->arpcom.ac_enaddr[0]); - for (i = 1; i < ETHER_ADDR_LEN; i++) { - printf(":%02x", scp->arpcom.ac_enaddr[i]); + /* Check that unit number is OK */ + if (unit > MAXSLOT) { + printf("xe: bad unit (%d)\n", unit); + return (ENODEV); } - printf("\n"); - - return 1; -} - - -/* - * Interrupt service routine. This shouldn't ever get called, but if it does - * we just call the card interrupt handler with the appropriate arguments. - */ -void -xeintr(int unit) { - xe_card_intr(sca[unit]->crd); -} - - -/* - * Initialize device. Except for the media selection stuff this is pretty - * much verbatim from the Linux code. - */ -static void -xe_init(void *xscp) { - struct xe_softc *scp; - struct ifnet *ifp; - int unit, s; - - scp = xscp; - ifp = &scp->arpcom.ac_if; - unit = scp->crd->isahd.id_unit; - if (scp->gone) - return; + /* Don't attach an active device */ + if (scp && !scp->gone) { + printf("xe: unit already attached (%d)\n", unit); + return (EBUSY); + } - if (TAILQ_EMPTY(&ifp->if_addrhead)) - return; + /* 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)); + } - s = splimp(); + /* Re-attach an existing device */ + if (scp->gone) { + scp->gone = 0; + return 0; + } - /* - * Reset transmitter flags - */ - scp->tx_queued = 0; - scp->tx_ptr = 0; - scp->tx_collisions = 0; - ifp->if_timer = 0; + /* Grep through CIS looking for relevant tuples */ + offs = 0; + do { + u_int16_t vendor; + u_int8_t rev, media, prod; - /* - * Hard, then soft, reset the card. - */ - XE_SELECT_PAGE(4); - DELAY(1); - 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_OUTB(XE_CR, XE_CR_SOFT_RESET); /* Software reset */ - DELAY(40000); - XE_OUTB(XE_CR, 0); - DELAY(40000); + iov.iov_base = buf; + iov.iov_len = CISTPL_BUFSIZE; + uios.uio_iov = &iov; + uios.uio_iovcnt = 1; + uios.uio_offset = offs; + uios.uio_resid = CISTPL_BUFSIZE; + uios.uio_segflg = UIO_SYSSPACE; + uios.uio_rw = UIO_READ; + uios.uio_procp = 0; - 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) + * 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? */ - XE_SELECT_PAGE(4); - XE_OUTB(XE_GPR0, 0x0e); - } + if ((rc = cdevsw[CARD_MAJOR]->d_read(makedev(CARD_MAJOR, devi->slt->slotnum), &uios, 0)) == 0) { - /* - * Wait for everything to wake up. - */ - DELAY(500000); + switch (CISTPL_TYPE(buf)) { - /* - * Get silicon revision number - */ - if (scp->ce3) - scp->srev = (XE_INB(XE_BOV) & 0x70) >> 4; - else - scp->srev = (XE_INB(XE_BOV) & 0x30) >> 4; + case 0x15: /* Grab version string (needed to ID some weird CE2's) */ #ifdef XE_DEBUG - printf("xe%d: silicon revision %d\n", unit, scp->srev); + 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; - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ - if (scp->probe) { - if (!scp->ce3) { - XE_SELECT_PAGE(4); - XE_OUTB(XE_GPR0, 4); - scp->probe = 0; - } - } - else if (scp->port == 2) { - /* select 10BaseT */ -#ifdef XE_DEBUG - printf("xe%d: selecting 10BaseT\n", unit); -#endif - XE_SELECT_PAGE(0x42); - XE_OUTB(XE_SWC1, 0x80); - } - else if (scp->port == 1) { - /* select 10Base2 */ + case 0x20: /* Figure out what type of card we have */ #ifdef XE_DEBUG - printf("xe%d: selecting 10Base2\n", unit); + printf("xe%d: Got card ID (0x20)\n", unit); #endif - XE_SELECT_PAGE(0x42); - XE_OUTB(XE_SWC1, 0xc0); - } - DELAY(40000); - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ - - /* - * Setup the ECR - */ - XE_SELECT_PAGE(1); - XE_OUTB(XE_IMR0, 0xff); /* Allow all interrupts */ - XE_OUTB(XE_IMR1, 0x01); /* Enable Tx underrun detection */ - 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 */ + 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); - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ - if (scp->ce3 && xe_mii_init(scp)) { - u_char val; + 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: found an MII\n", unit); -#endif - if ((scp->port == 4) || scp->cem56) { - /* use MII */ -#ifdef XE_DEBUG - printf("xe%d: using MII\n", unit); -#endif - XE_SELECT_PAGE(2); - val = XE_INB(XE_MSR); - val |= 0x08; - XE_OUTB(XE_MSR, val); - DELAY(20000); - } - else { - XE_SELECT_PAGE(0x42); - if (scp->port == 2) { - /* enable 10BaseT */ -#ifdef XE_DEBUG - printf("xe%d: selecting 10BaseT\n", unit); + printf("xe%d: Not a PCMCIA Ethernet card!\n", unit); #endif - XE_OUTB(XE_SWC1, 0x80); - } - else { - /* enable 10Base2 */ + rc = ENODEV; /* Not a PCMCIA Ethernet device */ + } + else { + if (media & 0x10) { /* Ethernet/modem cards */ #ifdef XE_DEBUG - printf("xe%d: selecting 10Base2\n", unit); + printf("xe%d: Card is Ethernet/modem combo\n", unit); #endif - XE_OUTB(XE_SWC1, 0xc0); - } - DELAY(40000); - } - } - else { - XE_SELECT_PAGE(0); - scp->port = (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? 2 : 1; + 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; + + /* 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); + /* - * Configure the LEDs + * 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. */ - XE_SELECT_PAGE(2); - if (scp->port > 1) { - XE_OUTB(XE_LED, 0x3b); /* For TP: link and activity */ + 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 { - XE_OUTB(XE_LED, 0x3a); /* For BNC: !collision and activity */ + ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL); + ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_2, 0, NULL); } - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ - /***** XXX XXX XXX XXX *****/ + ifmedia_add(scp->ifm, IFM_ETHER|IFM_AUTO, 0, NULL); - /* - * Enable receiver, put MAC online - */ - XE_SELECT_PAGE(0x40); - XE_OUTB(XE_OCR, XE_OCR_RX_ENABLE|XE_OCR_ONLINE); + /* 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 up IMR, enable interrupts + * 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. */ - XE_SELECT_PAGE(1); - XE_OUTB(XE_IMR0, 0xff); /* Enable everything */ - DELAY(1); - XE_SELECT_PAGE(0); - XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); - if (scp->modem && !scp->cem56) { /* This bit is just magic */ - if (!(XE_INB(0x10) & 0x01)) { - XE_OUTB(0x10, 0x11); /* Unmask master int enable bit */ - } + 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 */ /* - * Attempt to start output + * 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. */ - ifp->if_flags |= IFF_RUNNING; - ifp->if_flags &= ~IFF_OACTIVE; - xe_start(ifp); + 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; + struct xe_softc *scp = ifp->if_softc; struct mbuf *mbp; - int unit; - - scp = ifp->if_softc; - unit = scp->crd->isahd.id_unit; - if (scp->gone) - return; + 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. - */ + /* Tap off here if there is a bpf listener */ if (ifp->if_bpf) { +#ifdef XE_DEBUG + 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 = ifp->if_softc; + 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 (ifp->if_flags & IFF_LINK2) { - scp->port = 4; /* 100BASE-TX */ - scp->probe = 0; - } - else if (ifp->if_flags & IFF_LINK1) { - scp->port = 2; /* 10BASE-T */ - scp->probe = 0; - } - else if (ifp->if_flags & IFF_LINK0) { - scp->port = 1; /* 10BASE-2 */ - scp->probe = 0; - } - else { - scp->port = 0; /* Unknown */ - scp->probe = 1; - } - /* * 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)) + 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; } /* - * 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. + * 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 void -xe_watchdog(struct ifnet *ifp) { +static int +xe_card_intr(struct pccard_devinfo *devi) { struct xe_softc *scp; - int unit; - - scp = ifp->if_softc; - unit = scp->crd->isahd.id_unit; + struct ifnet *ifp; + int unit, result; + u_int16_t rx_bytes, rxs, txs; + u_int8_t psr, isr, esr, rsr; - if (scp->gone) - return; + 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 */ - printf("xe%d: transmit timeout; resetting card\n", unit); - scp->tx_timeouts++; - ifp->if_oerrors += scp->tx_queued; - xe_reset(scp); -} + if (scp->gone) + return 0; + if (scp->ce3) { + XE_OUTB(XE_CR, 0); /* Disable interrupts */ + } -/* - * Take interface offline. This is done by powering down the device, which I - * assume means just shutting down the transceiver and Ethernet logic. There - * is probably a more elegant method that doesn't require a full reset to - * recover from. - */ -static void -xe_stop(struct xe_softc *scp) { - struct ifnet *ifp; + psr = XE_INB(XE_PSR); /* Stash the current register page */ - ifp = &scp->arpcom.ac_if; + /* + * 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) { - if (scp->gone) - return; + 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); - XE_SELECT_PAGE(0); - XE_OUTB(XE_CR, 0); /* Disable interrupts */ - XE_SELECT_PAGE(1); - XE_OUTB(XE_IMR0, 0); /* Forbid all interrupts */ - XE_SELECT_PAGE(4); - XE_OUTB(XE_GPR1, 0); /* Power down (clear bit 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 - ifp->if_flags &= ~IFF_RUNNING; - ifp->if_flags &= ~IFF_OACTIVE; - ifp->if_timer = 0; -} + /* + * 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; -/* - * Reset the hardware. Power-down the card then re-initialise it. The - * xe_stop() is redundant if xe_init() also does one, but it can't hurt. - */ -static void -xe_reset(struct xe_softc *scp) { - int s; + /* + * Collision stats are a PITA. If multiples frames have been sent, we + * distribute any outstanding collision count equally amongst them. + * However, if we're missing interrupts we're quite likely to also + * miss some collisions; thus the total count will be off anyway. + * Likewise, if we miss a frame dropped due to excessive collisions + * any outstanding collisions count will be held against the next + * frame to be successfully sent. Hopefully it averages out in the + * end! + * XXX - This will screw up if tx_collisions/sent > 14. + */ + switch (scp->tx_collisions) { + case 0: + break; + case 1: + scp->mibdata.dot3StatsSingleCollisionFrames++; + scp->mibdata.dot3StatsCollFrequencies[0]++; + break; + default: + if (sent == 1) { + scp->mibdata.dot3StatsMultipleCollisionFrames++; + scp->mibdata.dot3StatsCollFrequencies[scp->tx_collisions-1]++; + } + else { /* Distribute across multiple frames */ + scp->mibdata.dot3StatsMultipleCollisionFrames += sent; + scp->mibdata. + dot3StatsCollFrequencies[scp->tx_collisions/sent] += sent - scp->tx_collisions%sent; + scp->mibdata. + dot3StatsCollFrequencies[scp->tx_collisions/sent + 1] += scp->tx_collisions%sent; + } + } + scp->tx_collisions = 0; + } + ifp->if_timer = 0; + ifp->if_flags &= ~IFF_OACTIVE; + } + if (txs & 0x0002) { /* Excessive collisions (packet dropped) */ + ifp->if_collisions += 16; + ifp->if_oerrors++; + scp->tx_collisions = 0; + scp->mibdata.dot3StatsExcessiveCollisions++; + scp->mibdata.dot3StatsMultipleCollisionFrames++; + scp->mibdata.dot3StatsCollFrequencies[15]++; + XE_OUTB(XE_CR, XE_CR_RESTART_TX); + } + if (txs & 0x0040) /* Transmit aborted -- probably collisions */ + scp->tx_collisions++; - if (scp->gone) - return; - s = splimp(); + /* + * Handle receive interrupts + */ + while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PKT_RX) { - xe_stop(scp); - xe_init(scp); + if ((rsr = XE_INB(XE_RSR)) & XE_RSR_RX_OK) { + struct ether_header *ehp; + struct mbuf *mbp; + u_int16_t len; - (void)splx(s); -} + len = XE_INW(XE_RBC); + if (len == 0) + continue; -/* - * Set up multicast filter and promiscuous mode - */ -static void -xe_setmulti(struct xe_softc *scp) { - struct ifnet *ifp; - struct ifmultiaddr *maddr; - int count; +#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 - ifp = &scp->arpcom.ac_if; - maddr = ifp->if_multiaddrs.lh_first; + if (len & 0x01) + len++; - /* Get length of multicast list */ - for (count = 0; maddr != NULL; maddr = maddr->ifma_link.le_next, count++); + 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 ((ifp->if_flags & IFF_PROMISC) || (ifp->if_flags & IFF_ALLMULTI) || (count > 9)) { - /* - * Go into promiscuous mode if either of the PROMISC or ALLMULTI flags are - * set, or if we have been asked to deal with more than 9 multicast - * addresses. To do this: set MPE and PME in SWC1 - */ - XE_SELECT_PAGE(0x42); - XE_OUTB(XE_SWC1, 0x06); - } - else if ((ifp->if_flags & IFF_MULTICAST) && (count > 0)) { - /* - * Program the filters for up to 9 addresses - */ - XE_SELECT_PAGE(0x42); - XE_OUTB(XE_SWC1, 0); - XE_SELECT_PAGE(0x40); - XE_OUTB(XE_OCR, XE_OCR_OFFLINE); - xe_setaddrs(scp); - XE_SELECT_PAGE(0x40); - XE_OUTB(XE_OCR, XE_OCR_RX_ENABLE|XE_OCR_ONLINE); - } - else { - /* - * No multicast operation (default) - */ - XE_SELECT_PAGE(0x42); - XE_OUTB(XE_SWC1, 0); - } - XE_SELECT_PAGE(0); -} + /* + * 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 *); -/* - * Set up all on-chip addresses (for multicast). AFAICS, there are 10 - * of these things; the first is our MAC address, the other 9 are mcast - * addresses, padded with the MAC address if there aren't enough. - * XXX - I think the Linux code gets this wrong and only writes one byte for - * XXX - each address. I *think* this code does it right, but it needs more - * XXX - intensive testing to be sure. - */ -static void -xe_setaddrs(struct xe_softc *scp) { - struct ifmultiaddr *maddr; - u_int8_t *addr; - u_int8_t page, slot, byte, i; + /* + * 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; - maddr = scp->arpcom.ac_if.if_multiaddrs.lh_first; + XE_SELECT_PAGE(5); + rhs = XE_INW(XE_RHS); + XE_SELECT_PAGE(0); - XE_SELECT_PAGE(page = 0x50); + rhs += 3; /* Skip control info */ - for (slot = 0, byte = 8; slot < 10; slot++) { + if (rhs >= 0x8000) + rhs = 0; - 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); - } + if (rhs + len > 0x8000) { + int i; - for (i = 0; i < 6; i++, byte++) { + /* + * XXX - this i-- seems very wrong, but it's what the Linux guys + * XXX - do. Need someone with an old CE2 to test this for me. + */ + for (i = 0; i < len; i--, rhs++) { + ((char *)ehp)[i] = XE_INB(XE_EDP); + if (rhs = 0x8000) { + rhs = 0; + i--; + } + } + } + else + insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1); + } + else + insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1); - if (byte > 15) { - page++; - byte = 8; - XE_SELECT_PAGE(page); - } +#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) { +#ifdef XE_DEBUG + printf("xe%d: passing input packet to BPF\n", scp->unit); +#endif + bpf_mtap(ifp, mbp); - if (scp->ce3) - XE_OUTB(byte, addr[5 - i]); - else - XE_OUTB(byte, addr[i]); + /* + * 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(0); + + XE_SELECT_PAGE(psr); /* Restore saved page */ + XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Re-enable interrupts */ + + /* XXX - Maybe force an int here, instead of dropping packets? */ + /* XXX - XE_OUTB(XE_CR, XE_CR_ENABLE_INTR|XE_CE_FORCE_INTR); */ + + return result; } /* - * Write an outgoing packet to the card using programmed I/O. + * 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 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; +static void +xe_watchdog(struct ifnet *ifp) { + struct xe_softc *scp = ifp->if_softc; - /* Get total packet length */ - for (len = 0, mbp2 = mbp; mbp2 != NULL; len += mbp2->m_len, mbp2 = mbp2->m_next); + if (scp->gone) return; - /* 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; - } + 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); +} - /* 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); +/* + * Change media selection. + */ +static int +xe_media_change(struct ifnet *ifp) { + struct xe_softc *scp = ifp->if_softc; - /* - * 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); +#ifdef XE_DEBUG + printf("xe%d: media_change\n", ifp->if_unit); +#endif + + if (IFM_TYPE(scp->ifm->ifm_media) != IFM_ETHER) + return(EINVAL); /* - * 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 (?) + * Some card/media combos aren't always possible -- filter those out here. */ - if (scp->ce3) - XE_OUTB(XE_CR, XE_CR_TX_PACKET|XE_CR_ENABLE_INTR); - else - while (pad > 0) - XE_OUTW(XE_EDP, 0xfeed); + 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; } - -/************************************************************** - * * - * M I I F U N C T I O N S * - * * - **************************************************************/ - -#if 0 -/* - * 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. - * Will probably use this if I can ever get the autoneg to work right :( - */ -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; -}; - /* - * Sync the PHYs by setting data bit and strobing the clock 32 times. + * Return current media selection. */ 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); +xe_media_status(struct ifnet *ifp, struct ifmediareq *mrp) { - for (i = 0; i < 32; i++) { - XE_MII_SET(XE_MII_CLK); - DELAY(1); - XE_MII_CLR(XE_MII_CLK); - DELAY(1); - } -} +#ifdef XE_DEBUG + printf("xe%d: media_status\n", ifp->if_unit); +#endif -/* - * 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; + mrp->ifm_active = ((struct xe_softc *)ifp->if_softc)->media; - 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); - } + return; } + /* - * Read an PHY register through the MII. + * Select active media. */ -static int -xe_mii_readreg(struct xe_softc *scp, struct xe_mii_frame *frame) { - int i, ack, s; +static void xe_setmedia(void *xscp) { + struct xe_softc *scp = xscp; + u_int16_t bmcr, bmsr, anar, lpar, aner; - s = splimp(); +#ifdef XE_DEBUG + printf("xe%d: setmedia\n", scp->unit); +#endif - /* - * 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); + /* Cancel any pending timeout */ + untimeout(xe_setmedia, scp, scp->chand); + xe_disable_intr(scp); - /* - * Turn on data xmit. - */ - XE_MII_SET(XE_MII_DIR); + /* Select media */ + scp->media = IFM_ETHER; + switch (IFM_SUBTYPE(scp->ifm->ifm_media)) { - xe_mii_sync(scp); + case IFM_AUTO: /* Autoselect media */ + scp->media = IFM_ETHER|IFM_AUTO; - /* - * 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); + /* + * 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) { - /* Idle bit */ - XE_MII_CLR((XE_MII_CLK|XE_MII_WRD)); - DELAY(1); - XE_MII_SET(XE_MII_CLK); - DELAY(1); + 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; - /* Turn off xmit. */ - XE_MII_CLR(XE_MII_DIR); + 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; - /* 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; + case XE_AUTONEG_STARTED: + bmsr = xe_phy_readreg(scp, PHY_BMSR); + lpar = xe_phy_readreg(scp, PHY_LPAR); + if (bmsr & (PHY_BMSR_AUTONEGCOMP|PHY_BMSR_LINKSTAT)) { +#ifdef XE_DEBUG + printf("xe%d: Autonegotiation complete!\n", scp->unit); +#endif + /* + * XXX - Shouldn't have to do this, but (on my hub at least) the + * XXX - transmitter won't work after a successful autoneg. So we see + * XXX - what the negotiation result was and force that mode. I'm + * XXX - sure there is an easy fix for this. + */ + if (lpar & PHY_LPAR_100BTXHALF) { + xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); + XE_MII_DUMP(scp); + XE_SELECT_PAGE(2); + XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); + scp->media = IFM_ETHER|IFM_100_TX; + scp->autoneg_status = XE_AUTONEG_NONE; + } + else { + xe_phy_writereg(scp, PHY_BMCR, 0x0000); + XE_SELECT_PAGE(2); + XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY? */ + scp->autoneg_status = XE_AUTONEG_FAIL; + } + } + else { +#ifdef XE_DEBUG + printf("xe%d: Autonegotiation failed; trying 100baseTX\n", scp->unit); +#endif + XE_MII_DUMP(scp); + xe_soft_reset(scp); + if (scp->phy_ok) { + xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); + scp->autoneg_status = XE_AUTONEG_100TX; + scp->chand = timeout(xe_setmedia, scp, hz * 3); + return; + } + else { + scp->autoneg_status = XE_AUTONEG_FAIL; + } + } + break; - /* - * 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); + 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; } - 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); + /* + * 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; + } } - XE_MII_SET(XE_MII_CLK); - DELAY(1); + 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; } -fail: - XE_MII_CLR(XE_MII_CLK); - DELAY(1); - XE_MII_SET(XE_MII_CLK); - DELAY(1); + /* + * 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; - splx(s); + case IFM_10_2: + XE_OUTB(XE_LED, 0x3a); + break; + } - if (ack) - return(1); - return(0); + /* Restart output? */ + scp->ifp->if_flags &= ~IFF_OACTIVE; + xe_init(scp); } + /* - * Write to a PHY register through the MII. + * Hard reset (power cycle) the card. */ -static int -xe_mii_writereg(struct xe_softc *scp, struct xe_mii_frame *frame) { +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(); /* - * Set up frame for TX. + * Power cycle the card. */ - frame->mii_stdelim = XE_MII_STARTDELIM; - frame->mii_opcode = XE_MII_WRITEOP; - frame->mii_turnaround = XE_MII_TURNAROUND; - - XE_SELECT_PAGE(2); + XE_SELECT_PAGE(4); + XE_OUTB(XE_GPR1, 0); /* Power off */ + DELAY(40000); - /* - * Turn on data output. - */ - XE_MII_SET(XE_MII_DIR); + 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); - xe_mii_sync(scp); + (void)splx(s); +} - 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); +/* + * 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; - /* - * Turn off xmit. - */ - XE_MII_CLR(XE_MII_DIR); +#ifdef XE_DEBUG + printf("xe%d: soft_reset\n", scp->unit); +#endif - splx(s); + if (scp->gone) return; - return(0); -} + s = splimp(); -static u_int16_t -xe_phy_readreg(struct xe_softc *scp, u_int16_t reg) { - struct xe_mii_frame frame; + /* + * 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); - bzero((char *)&frame, sizeof(frame)); + 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); + } - frame.mii_phyaddr = 0; - frame.mii_regaddr = reg; - xe_mii_readreg(scp, &frame); + /* + * Wait for everything to wake up. + */ + DELAY(500000); - return(frame.mii_data); -} + /* + * 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; -static void -xe_phy_writereg(struct xe_softc *scp, u_int16_t reg, u_int16_t data) { - struct xe_mii_frame frame; + /* + * Shut off interrupts. + */ + xe_disable_intr(scp); - bzero((char *)&frame, sizeof(frame)); + /* + * Check for PHY. + */ + if (scp->ce3) { + scp->phy_ok = xe_mii_init(scp); + } - frame.mii_phyaddr = 0; - frame.mii_regaddr = reg; - frame.mii_data = data; - xe_mii_writereg(scp, &frame); + XE_SELECT_PAGE(0); - return; + (void)splx(s); } + /* - * Initiate an autonegotiation session. + * 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_autoneg_xmit(struct xe_softc *scp) { - u_int16_t phy_sts; - - xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_RESET); - DELAY(500); - while(xe_phy_readreg(scp, PHY_BMCR) & PHY_BMCR_RESET); - - phy_sts = xe_phy_readreg(scp, PHY_BMCR); - phy_sts &= ~PHY_BMCR_AUTONEGENBL; - xe_phy_writereg(scp, PHY_BMCR, phy_sts); - DELAY(1000); - phy_sts |= PHY_BMCR_AUTONEGENBL|PHY_BMCR_AUTONEGRSTR; - phy_sts &= ~PHY_BMCR_ISOLATE; - xe_phy_writereg(scp, PHY_BMCR, phy_sts); - DELAY(1000); +xe_stop(struct xe_softc *scp) { + int s; - return; -} +#ifdef XE_DEBUG + printf("xe%d: stop\n", scp->unit); +#endif -/* - * Invoke autonegotiation on a PHY. Also used with the 3Com internal - * autoneg logic which is mapped onto the MII. - */ -static void -xe_autoneg_mii(struct xe_softc *scp) { - u_int16_t phy_sts = 0, media, advert, ability; - int unit = scp->dev->id_unit; - int i; + if (scp->gone) return; + + s = splimp(); /* - * First, see if autoneg is supported. If not, there's - * no point in continuing. + * Shut off interrupts. */ - phy_sts = xe_phy_readreg(scp, PHY_BMSR); - if (!(phy_sts & PHY_BMSR_CANAUTONEG)) { - printf("xe%d: autonegotiation not supported\n", unit); - media = xe_phy_readreg(scp, PHY_BMCR); - media &= ~PHY_BMCR_SPEEDSEL; - media &= ~PHY_BMCR_DUPLEX; - xe_phy_writereg(scp, PHY_BMCR, media); - return; - } - - xe_autoneg_xmit(scp); - DELAY(5000000); + xe_disable_intr(scp); - if (xe_phy_readreg(scp, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) { - printf("xe%d: autoneg complete, ", unit); - phy_sts = xe_phy_readreg(scp, PHY_BMSR); - } else { - printf("xe%d: autoneg not complete, ", unit); - } - - media = xe_phy_readreg(scp, PHY_BMCR); - - /* Link is good. Report modes and set duplex mode. */ - if (xe_phy_readreg(scp, PHY_BMSR) & PHY_BMSR_LINKSTAT) { - printf("link status good "); - advert = xe_phy_readreg(scp, XL_PHY_ANAR); - ability = xe_phy_readreg(scp, XL_PHY_LPAR); - - if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) { - printf("(100baseT4)\n"); - } else if (advert & PHY_ANAR_100BTXFULL && ability & PHY_ANAR_100BTXFULL) { - printf("(full-duplex, 100Mbps)\n"); - } else if (advert & PHY_ANAR_100BTXHALF && ability & PHY_ANAR_100BTXHALF) { - printf("(half-duplex, 100Mbps)\n"); - } else if (advert & PHY_ANAR_10BTFULL && ability & PHY_ANAR_10BTFULL) { - printf("(full-duplex, 10Mbps)\n"); - } else if (advert & PHY_ANAR_10BTHALF && ability & PHY_ANAR_10BTHALF) { - printf("(half-duplex, 10Mbps)\n"); - } - } else { - printf("no carrier (forcing half-duplex, 10Mbps)\n"); - xe_phy_writereg(scp, PHY_BMCR, 0x0000); - } -} + /* + * Power down. + */ + XE_SELECT_PAGE(4); + XE_OUTB(XE_GPR1, 0); + XE_SELECT_PAGE(0); -static void -xe_mii_new_dump(struct xe_softc *scp) { - int i, unit = scp->dev->id_unit; + /* + * ~IFF_RUNNING == interface down. + */ + scp->ifp->if_flags &= ~IFF_RUNNING; + scp->ifp->if_flags &= ~IFF_OACTIVE; + scp->ifp->if_timer = 0; - 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); } -#endif -#if 1 /* - * Original MII/PHY code from xirc2_ps driver. Seems like it should work, - * according to the ML6692 and DP83840A specs, but the autonegotiation never - * completes, even on the 10/100 net at work. It's very weird. + * Enable Ethernet interrupts from the card. */ static void -xe_mii_clock(struct xe_softc *scp) { - XE_OUTB(XE_GPR2, 0x04); /* MDCK low */ - DELAY(1); - XE_OUTB(XE_GPR2, 0x05); /* MDCK high */ +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); -} -static u_int16_t -xe_mii_getbit(struct xe_softc *scp) { - u_int16_t data; - - XE_OUTB(XE_GPR2, 0x04); - DELAY(1); - data = XE_INB(XE_GPR2); - XE_OUTB(XE_GPR2, 0x05); - DELAY(1); - return data & 0x20; -} - -static void -xe_mii_putbit(struct xe_softc *scp, u_int16_t data) { - if (data) { - XE_OUTB(XE_GPR2, 0x0e); - DELAY(1); - XE_OUTB(XE_GPR2, 0x0f); - DELAY(1); - } - else { - XE_OUTB(XE_GPR2, 0x0c); - DELAY(1); - XE_OUTB(XE_GPR2, 0x0d); - 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 */ + } } } -static void -xe_mii_putbits(struct xe_softc *scp, u_int16_t data, int len) { - u_int16_t mask; - for (mask = 1 << (--len); mask != 0; mask >>= 1) - xe_mii_putbit(scp, data & mask); -} - -static u_int16_t -xe_mii_read(struct xe_softc *scp, u_int8_t phy, u_int8_t reg) { - int i; - u_int16_t mask, data = 0; - - XE_SELECT_PAGE(2); - - for (i = 0; i < 32; i++) - xe_mii_putbit(scp, 1); - - xe_mii_putbits(scp, 0x06, 4); - xe_mii_putbits(scp, phy, 5); - xe_mii_putbits(scp, reg, 5); - xe_mii_clock(scp); - xe_mii_getbit(scp); - - for (mask = 1 << 15; mask != 0; mask >>= 1) - if (xe_mii_getbit(scp)) - data |= mask; - - xe_mii_clock(scp); - - return data; -} +/* + * Disable all Ethernet interrupts from the card. + */ static void -xe_mii_write(struct xe_softc *scp, u_int8_t phy, u_int8_t reg, u_int16_t data, int len) { - int i; - - XE_SELECT_PAGE(2); - - for (i = 0; i < 32; i++) - xe_mii_putbit(scp, 1); - - xe_mii_putbits(scp, 0x05, 4); - xe_mii_putbits(scp, phy, 5); - xe_mii_putbits(scp, reg, 5); - xe_mii_putbit(scp, 1); - xe_mii_putbit(scp, 0); - xe_mii_putbits(scp, data, len); - xe_mii_clock(scp); -} - -static int -xe_mii_init(struct xe_softc *scp) { - u_int16_t control, status, partner; - int unit = scp->dev->id_unit, i; - - status = xe_mii_read(scp, 0, 1); - if ((status & 0xff00) != 0x7800) { -#ifdef XE_DEBUG - printf("xe%d: no MII found, %0x\n", unit, status); -#endif - return 0; - } - - /* - * XXX - do proper media selection here - */ - if (scp->probe) { +xe_disable_intr(struct xe_softc *scp) { #ifdef XE_DEBUG - printf("xe%d: trying auto-negotiation\n", unit); + printf("xe%d: disable_intr\n", scp->unit); #endif - control = 0x1000; /* AutoNeg */ - } - else if (scp->port == 4) { -#ifdef XE_DEBUG - printf("xe%d: defaulting to 100Mbps\n", unit); -#endif - control = 0x2000; /* 100Mbps */ - } - else { -#ifdef XE_DEBUG - printf("xe%d: defaulting to 10Mbps\n", unit); -#endif - control = 0x0000; /* 10Mbps */ - } - - xe_mii_write(scp, 0, 0, control, 16); - DELAY(100); - control = xe_mii_read(scp, 0, 0); - if (control & 0x0400) { -#ifdef XE_DEBUG - printf("xe%d: can't take PHY out of isolation mode\n", unit); -#endif - return 0; - } - - if (scp->probe) { - /* Wait for negotiation to finish */ -#ifdef XE_DEBUG - printf("xe%d: waiting for auto-negotiation to complete...\n", unit); -#endif - for (i = 0; i < 35; i++) { - DELAY(100000); - status = xe_mii_read(scp, 0, 1); - if ((status & 0x0020) && (status &0x0004)) - break; - } - - if (!(status & 0x0020)) { -#ifdef XE_DEBUG - printf("xe%d: auto-negotiation failed\n", unit); -#endif - control = 0x0000; - xe_mii_write(scp, 0, 0, control, 16); - DELAY(100); - XE_SELECT_PAGE(0); - scp->port = (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? 2 : 1; - } - else { - partner = xe_mii_read(scp, 0, 5); -#ifdef XE_DEBUG - printf("xe%d: MII link partner = %04x\n", unit, partner); -#endif - if (partner & 0x0080) { - scp->port = 4; - } - else { - DELAY(100); - XE_SELECT_PAGE(0); - scp->port = (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? 2 : 1; - } - } - scp->probe = 0; - } - -#ifdef XE_DEBUG - printf("xe%d: auto-negotiation result: ", unit); - switch (scp->port) { - case 4: printf("100BaseTX\n"); break; - case 2: printf("10BaseT\n"); break; - case 1: printf("10Base2\n"); break; - default: printf("unknown\n"); + 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 */ } -#endif - return 1; + XE_SELECT_PAGE(1); + XE_OUTB(XE_IMR0, 0); /* Forbid all interrupts */ + XE_OUTB(XE_IMR1, 0); + XE_SELECT_PAGE(0); } -#ifdef XE_DEBUG + +/* + * Set up multicast filter and promiscuous mode + */ static void -xe_mii_dump(struct xe_softc *scp) { - int i, unit = scp->dev->id_unit; +xe_setmulti(struct xe_softc *scp) { + struct ifnet *ifp; + struct ifmultiaddr *maddr; + int count; - printf("xe%d: MII register dump\n", unit); - for (i = 0; i < 7; i++) { - printf(" %04x", xe_mii_read(scp, 0, i)); - } - printf("\n"); -} + ifp = &scp->arpcom.ac_if; + maddr = ifp->if_multiaddrs.lh_first; -static void -xe_reg_dump(struct xe_softc *scp) { - int unit = scp->dev->id_unit; - int page, i; + /* Get length of multicast list */ + for (count = 0; maddr != NULL; maddr = maddr->ifma_link.le_next, count++); - printf("xe%d: Common registers: ", unit); - for (i = 0; i < 8; i++) { - printf(" %2.2x", XE_INB(i)); + 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); } - printf("\n"); - - for (page = 0; page < 8; page++) { - printf("xe%d: Register page %2.2x: ", unit, page); - XE_SELECT_PAGE(page); - for (i = 8; i < 16; i++) { - printf(" %2.2x", XE_INB(i)); - } - printf("\n"); + else if ((ifp->if_flags & IFF_MULTICAST) && (count > 0)) { + /* + * Program the filters for up to 9 addresses + */ + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0); + XE_SELECT_PAGE(0x40); + XE_OUTB(XE_OCR, XE_OCR_OFFLINE); + xe_setaddrs(scp); + XE_SELECT_PAGE(0x40); + XE_OUTB(XE_OCR, XE_OCR_RX_ENABLE|XE_OCR_ONLINE); } - - for (page = 0x40; page < 0x5f; page++) { - if (page==0x43 || (page>=0x46 && page<=0x4f) || (page>=0x51 && page<=0x5e)) - continue; - printf("xe%d: Register page %2.2x: ", unit, page); - XE_SELECT_PAGE(page); - for (i = 8; i < 16; i++) { - printf(" %2.2x", XE_INB(i)); - } - printf("\n"); + else { + /* + * No multicast operation (default) + */ + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0); } + XE_SELECT_PAGE(0); } -#endif -#endif -/************************************************************** - * * - * P C M C I A F U N C T I O N S * - * * - **************************************************************/ - -#define CARD_MAJOR 50 - -/* - * Horrid stuff for accessing CIS tuples - */ -#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)] - - /* - * 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. + * Set up all on-chip addresses (for multicast). AFAICS, there are 10 + * of these things; the first is our MAC address, the other 9 are mcast + * addresses, padded with the MAC address if there aren't enough. + * XXX - I think the Linux code gets this wrong and only writes one byte for + * XXX - each address. I *think* this code does it right, but it needs more + * XXX - intensive testing to be sure. */ -static int -xe_card_init(struct pccard_devinfo *devi) -{ - struct xe_softc *scp; - struct isa_device *dev; - struct uio uios; - struct iovec iov; - 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; +static void +xe_setaddrs(struct xe_softc *scp) { + struct ifmultiaddr *maddr; + u_int8_t *addr; + u_int8_t page, slot, byte, i; -#ifdef XE_DEBUG - printf("xe: Probing for unit %d\n", unit); -#endif + maddr = scp->arpcom.ac_if.if_multiaddrs.lh_first; - /* Check that unit number is OK */ - if (unit > MAXSLOT) { - printf("xe: bad unit (%d)\n", unit); - return (ENODEV); - } + XE_SELECT_PAGE(page = 0x50); - /* Don't attach an active device */ - if (scp && !scp->gone) { - printf("xe: unit already attached (%d)\n", unit); - return (EBUSY); - } + for (slot = 0, byte = 8; slot < 10; slot++) { - /* Allocate per-instance storage */ - if (!scp) { - if ((scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT)) == NULL) { - printf("xe%d: failed to allocage driver strorage\n", unit); - return (ENOMEM); + 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); } - bzero(scp, sizeof(*scp)); - } - /* Re-attach an existing device */ - if (scp->gone) { - scp->gone = 0; - xe_stop(scp); - return 0; - } - - /* Grep through CIS looking for relevant tuples */ - offs = 0; - do { - u_int16_t vendor; - u_int8_t rev, media, prod; - - iov.iov_base = buf; - iov.iov_len = CISTPL_BUFSIZE; - uios.uio_iov = &iov; - uios.uio_iovcnt = 1; - uios.uio_offset = offs; - uios.uio_resid = CISTPL_BUFSIZE; - uios.uio_segflg = UIO_SYSSPACE; - uios.uio_rw = UIO_READ; - uios.uio_procp = 0; - - /* - * 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? - */ - if ((rc = cdevsw[CARD_MAJOR]->d_read(makedev(CARD_MAJOR, devi->slt->slotnum), &uios, 0)) == 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: - 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; + for (i = 0; i < 6; i++, byte++) { - 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: + if (byte > 15) { + page++; + byte = 8; + XE_SELECT_PAGE(page); } + + if (scp->ce3) + XE_OUTB(byte, addr[5 - i]); + else + XE_OUTB(byte, addr[i]); } + } + XE_SELECT_PAGE(0); +} - /* Skip to next tuple */ - offs += ((CISTPL_LEN(buf) + 2) << 1); - } while ((CISTPL_TYPE(buf) != 0xff) && (CISTPL_LEN(buf) != 0xff) && (rc == 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); - /* Die now if something went wrong above */ - if ((rc != 0) || (success < 3)) { - free(scp, M_DEVBUF); - return rc; + /* 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 for certain strange CE2's that look like CE's */ - if (strcmp(scp->card_type, "CE") == 0) { - u_char len = ver_str[CISTPL_BUFSIZE>>1 - 1]; -#ifdef XE_DEBUG - printf("xe%d: Checking for weird CE2 string\n", unit); -#endif - for (i = 0; i < len - 2; i++) - if (bcmp("CE2", &ver_str[i], 3) == 0) - scp->card_type = "CE2"; - } + /* 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; - /* Fill in some private data */ - sca[unit] = scp; - scp->dev = &devi->isahd; - scp->crd = devi; - scp->probe = 1; /* Do media auto-detect by default */ + /* Send packet length to card */ + XE_OUTW(XE_EDP, len); - /* Attempt to attach the device */ -#ifdef XE_DEBUG - printf("xe%d: Attaching...\n", unit); -#endif - if (xe_attach(scp->dev) == 0) { - sca[unit] = 0; - free(scp, M_DEVBUF); - return ENXIO; + /* + * 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); -#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 */ + /* + * For CE3 cards, just tell 'em to send -- apparently the card will pad out + * short packets with random cruft. Otherwise, write nonsense words to fill + * out the packet. I guess it is then sent automatically (?) + */ + if (scp->ce3) + XE_OUTB(XE_CR, XE_CR_TX_PACKET|XE_CR_ENABLE_INTR); + else + while (pad > 0) + XE_OUTW(XE_EDP, 0xfeed); - /* Success */ 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 * + * * + **************************************************************/ + /* - * 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 :) + * 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. */ -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; +#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)) - 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) +/* + * 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 - if (scp->ce3) { - XE_OUTB(XE_CR, 0); /* Disable interrupts */ + /* 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; } +} - psr = XE_INB(XE_PSR); /* Stash the current register page */ + +/* + * 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(); /* - * Read ISR to see what caused this interrupt. Note that this clears the - * ISR on CE2 type cards. + * Set up frame for RX. */ - if ((isr = XE_INB(XE_ISR)) && isr != 0xff) { + 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); - 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); + /* + * Turn on data xmit. + */ + XE_MII_SET(XE_MII_DIR); -#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 + xe_mii_sync(scp); - /* - * 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; + /* + * 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); - 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; + /* Idle bit */ + XE_MII_CLR((XE_MII_CLK|XE_MII_WRD)); + DELAY(1); + XE_MII_SET(XE_MII_CLK); + DELAY(1); - /* - * 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; + /* 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); } - 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); + 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); } - if (txs & 0x0040) /* Transmit aborted -- probably collisions */ - scp->tx_collisions++; + 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); +} - /* - * Handle receive interrupts - */ - while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PKT_RX) { +/* + * Write to a PHY register through the MII. + */ +static int +xe_mii_writereg(struct xe_softc *scp, struct xe_mii_frame *frame) { + int s; - if ((rsr = XE_INB(XE_RSR)) & XE_RSR_RX_OK) { - struct ether_header *ehp; - struct mbuf *mbp; - u_int16_t len; + s = splimp(); - len = XE_INW(XE_RBC); + /* + * 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); - if (len == 0) - continue; + /* + * Turn on data output. + */ + XE_MII_SET(XE_MII_DIR); -#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 + xe_mii_sync(scp); - if (len & 0x01) - len++; + 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); - 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; + /* Idle bit. */ + XE_MII_SET(XE_MII_CLK); + DELAY(1); + XE_MII_CLR(XE_MII_CLK); + DELAY(1); - /* - * 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; - } - } - } + /* + * Turn off xmit. + */ + XE_MII_CLR(XE_MII_DIR); - 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 *); + splx(s); - /* - * 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; + return(0); +} - XE_SELECT_PAGE(5); - rhs = XE_INW(XE_RHS); - XE_SELECT_PAGE(0); - rhs += 3; /* Skip control info */ +/* + * 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; - if (rhs >= 0x8000) - rhs = 0; + bzero((char *)&frame, sizeof(frame)); - if (rhs + len > 0x8000) { - int i; + frame.mii_phyaddr = 0; + frame.mii_regaddr = reg; + xe_mii_readreg(scp, &frame); - /* - * XXX - this i-- seems very wrong, but it's what the Linux guys - * XXX - do. Need someone with an old CE2 to test this for me. - */ - for (i = 0; i < len; i--, rhs++) { - ((char *)ehp)[i] = XE_INB(XE_EDP); - if (rhs = 0x8000) { - rhs = 0; - i--; - } - } - } - else - insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1); - } - else - insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1); + return(frame.mii_data); +} -#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) { - 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 */ +/* + * 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; - 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); - } + bzero((char *)&frame, sizeof(frame)); + + frame.mii_phyaddr = 0; + frame.mii_regaddr = reg; + frame.mii_data = data; + xe_mii_writereg(scp, &frame); + + return; +} + + +#ifdef XE_DEBUG +static void +xe_mii_dump(struct xe_softc *scp) { + int i, unit = scp->dev->id_unit; + + for (i = 0; i < 2; i++) { + printf(" %d:%04x", i, xe_phy_readreg(scp, i)); } + for (i = 4; i < 7; i++) { + printf(" %d:%04x", i, xe_phy_readreg(scp, i)); + } + printf("\n"); +} - XE_SELECT_PAGE(psr); /* Restore saved page */ - XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Re-enable interrupts */ +static void +xe_reg_dump(struct xe_softc *scp) { + int unit = scp->dev->id_unit; + int page, i; - /* XXX - force an int here, instead of dropping packets? */ - /* XXX - XE_OUTB(XE_CR, XE_CR_ENABLE_INTR|XE_CE_FORCE_INTR); */ + printf("xe%d: Common registers: ", unit); + for (i = 0; i < 8; i++) { + printf(" %2.2x", XE_INB(i)); + } + printf("\n"); - return result; + for (page = 0; page < 8; page++) { + printf("xe%d: Register page %2.2x: ", unit, page); + XE_SELECT_PAGE(page); + for (i = 8; i < 16; i++) { + printf(" %2.2x", XE_INB(i)); + } + printf("\n"); + } + + for (page = 0x40; page < 0x5f; page++) { + if (page==0x43 || (page>=0x46 && page<=0x4f) || (page>=0x51 && page<=0x5e)) + continue; + printf("xe%d: Register page %2.2x: ", unit, page); + XE_SELECT_PAGE(page); + for (i = 8; i < 16; i++) { + printf(" %2.2x", XE_INB(i)); + } + printf("\n"); + } } +#endif #if NAPM > 0 /************************************************************** * * * A P M F U N C T I O N S * * * **************************************************************/ /* * This is called when we go into suspend/standby mode */ static int xe_suspend(void *xunit) { - struct xe_softc *scp; - struct ifnet *ifp; - int unit; - - unit = (int)xunit; - scp = sca[unit]; - ifp = &scp->arpcom.ac_if; + struct xe_softc *scp = sca[(int)xunit]; #ifdef XE_DEBUG - printf("xe%d: APM suspend\n", unit); + printf("xe%d: APM suspend\n", scp->unit); #endif - if_down(ifp); return 0; } /* * This is called when we wake up again */ static int xe_resume(void *xunit) { - struct xe_softc *scp; - int unit; - - unit = (int)xunit; - scp = sca[unit]; + struct xe_softc *scp = sca[(int)xunit]; #ifdef XE_DEBUG - printf("xe%d: APM resume\n", unit); + printf("xe%d: APM resume\n", scp->unit); #endif return 0; } -#endif /* NAPM > 0 */ +#endif /* NAPM > 0 */ #endif /* NCARD > 0 */ - #endif /* NXE > 0 */ diff --git a/sys/dev/pccard/if_xereg.h b/sys/dev/pccard/if_xereg.h index 9dcdf31b15fd..07cb0b1bbb59 100644 --- a/sys/dev/pccard/if_xereg.h +++ b/sys/dev/pccard/if_xereg.h @@ -1,286 +1,296 @@ /*- * 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_xereg.h,v 1.2 1999/01/24 22:15:30 root Exp $ + * $Id: if_xereg.h,v 1.3 1999/02/22 14:00:53 root Exp $ */ /* * Register definitions for Xircom CreditCard Ethernet adapters. See if_xe.c * for details of supported hardware. Adapted from Werner Koch's 'xirc2ps' - * driver for Linux. + * driver for Linux and the FreeBSD 'xl' driver (for the MII support). */ #include "xe.h" #if NXE > 0 /* * Common registers */ #define XE_CR 0 /* Command register (write) */ #define XE_ESR 0 /* Ethernet status register (read) */ #define XE_PSR 1 /* Page select register */ #define XE_EDP 4 /* Ethernet data port */ #define XE_ISR 6 /* Interrupt status register */ /* * Command register values */ #define XE_CR_TX_PACKET 0x01 #define XE_CR_SOFT_RESET 0x02 #define XE_CR_ENABLE_INTR 0x04 #define XE_CR_FORCE_INTR 0x08 #define XE_CR_CLEAR_FIFO 0x10 #define XE_CR_CLEAR_OVERRUN 0x20 #define XE_CR_RESTART_TX 0x40 /* * Status register values */ #define XE_ESR_FULL_PKT_RX 0x01 #define XE_ESR_PKT_REJECT 0x04 #define XE_ESR_TX_PENDING 0x08 #define XE_ESR_BAD_POLARITY 0x10 #define XE_ESR_MEDIA_SELECT 0x20 /* * Interrupt register values */ #define XE_ISR_TX_OVERFLOW 0x01 #define XE_ISR_TX_PACKET 0x02 #define XE_ISR_MAC_INTR 0x04 #define XE_ISR_TX_RES 0x08 #define XE_ISR_RX_PACKET 0x20 #define XE_ISR_RX_REJECT 0x40 #define XE_ISR_FORCE_INTR 0x80 /* * Page 0 registers */ #define XE_TSO 8 /* Transmit space open */ #define XE_TRS 10 /* Transmit reservation size */ #define XE_DOR 12 /* Data offset register (write) */ #define XE_RSR 12 /* Receive status register (read) */ #define XE_PTR 13 /* Packets transmitted register (read) */ #define XE_RBC 14 /* Received byte count (read) */ /* * RSR values */ #define XE_RSR_PHYS_PKT 0x01 #define XE_RSR_BCAST_PKT 0x02 #define XE_RSR_LONG_PKT 0x04 #define XE_RSR_ALIGN_ERR 0x10 #define XE_RSR_CRC_ERR 0x20 #define XE_RSR_RX_OK 0x80 /* * Page 1 registers */ #define XE_IMR0 12 /* Interrupt mask register, part 1 */ #define XE_IMR1 13 /* Interrupt mask register, part 2 */ #define XE_ECR 14 /* Ethernet configuration register */ /* * ECR values */ #define XE_ECR_FULL_DUPLEX 0x04 #define XE_ECR_LONG_TPCABLE 0x08 #define XE_ECR_NO_POLCOL 0x10 #define XE_ECR_NO_LINKPULSE 0x20 #define XE_ECR_NO_AUTOTX 0x40 /* * Page 2 registers */ #define XE_RBS 8 /* Receive buffer start */ #define XE_LED 10 /* LED configuration register */ #define XE_MSR 12 /* Mohawk specfic register (Mohawk = CE3) */ #define XE_GPR2 13 /* General purpose register 2 */ /* * Page 4 registers */ #define XE_GPR0 8 /* General purpose register 0 */ #define XE_GPR1 9 /* General purpose register 1 */ #define XE_BOV 10 /* Bonding version register */ #define XE_LMA 12 /* Local memory address */ #define XE_LMD 14 /* Local memory data */ /* * Page 5 registers */ #define XE_RHS 10 /* Receive host start address */ /* * Page 0x40 registers */ #define XE_OCR 8 /* The Other command register */ #define XE_RXS0 9 /* Receive status 0 */ #define XE_TXS0 11 /* Transmit status 0 */ #define XE_TXS1 12 /* Transmit status 1 */ #define XE_RXM0 13 /* Receive mask register 0 */ #define XE_TXM0 14 /* Transmit mask register 0 */ #define XE_TXM1 15 /* Transmit mask register 1 */ /* * OCR values */ #define XE_OCR_TX 0x01 #define XE_OCR_RX_ENABLE 0x04 #define XE_OCR_RX_DISABLE 0x08 #define XE_OCR_ABORT 0x10 #define XE_OCR_ONLINE 0x20 #define XE_OCR_ACK_INTR 0x40 #define XE_OCR_OFFLINE 0x80 /* * Page 0x42 registers */ #define XE_SWC0 8 /* Software configuration register 0 */ #define XE_SWC1 9 /* Software configuration register 1 */ #define XE_BOC 10 /* Back-off configuration */ /* * Page 0x44 registers */ #define XE_TDR0 8 /* Time domain reflectometry register 0 */ #define XE_TDR1 9 /* Time domain reflectometry register 1 */ #define XE_RXC0 10 /* Receive byte count low */ #define XE_RXC1 11 /* Receive byte count high */ /* * Page 0x45 registers */ #define XE_REV 15 /* Revision (read) */ /* * Page 0x50 registers */ #define XE_IAR 8 /* Individual address register */ /* * Pages 0x43, 0x46-0x4f and 0x51-0x5e apparently don't exist. * The remainder of 0x0-0x8 and 0x40-0x5f exist, but I have no * idea what's on most of them. */ + /* - * MII/PHY defines adapted from the xl driver. These need cleaning up a - * little if we end up using them. + * Definitions for the Micro Linear ML6692 100Base-TX PHY, which handles the + * 100Mbit functionality of CE3 type cards, including media autonegotiation. + * It appears to be mostly compatible with the National Semiconductor + * DP83840A, but with a much smaller register set. Please refer to the data + * sheets for these devices for the definitive word on what all this stuff + * means :) + * + * Note that the ML6692 has no 10Mbit capability -- that is handled by another + * chip that we don't know anything about. + * + * Most of these definitions were adapted from the xl driver. + */ + +/* + * Masks for the MII-related bits in GPR2. For some reason read and write + * data are on separate bits. */ #define XE_MII_CLK 0x01 #define XE_MII_DIR 0x08 #define XE_MII_WRD 0x02 #define XE_MII_RDD 0x20 + +/* + * MII command (etc) bit strings. + */ #define XE_MII_STARTDELIM 0x01 #define XE_MII_READOP 0x02 #define XE_MII_WRITEOP 0x01 #define XE_MII_TURNAROUND 0x02 -#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)) - -#define XL_PHY_GENCTL 0x00 -#define XL_PHY_GENSTS 0x01 -#define XL_PHY_VENID 0x02 -#define XL_PHY_DEVID 0x03 -#define XL_PHY_ANAR 0x04 -#define XL_PHY_LPAR 0x05 -#define XL_PHY_ANER 0x06 - -#define PHY_ANAR_NEXTPAGE 0x8000 -#define PHY_ANAR_RSVD0 0x4000 -#define PHY_ANAR_TLRFLT 0x2000 -#define PHY_ANAR_RSVD1 0x1000 -#define PHY_ANAR_RSVD2 0x0800 -#define PHY_ANAR_RSVD3 0x0400 -#define PHY_ANAR_100BT4 0x0200 -#define PHY_ANAR_100BTXFULL 0x0100 -#define PHY_ANAR_100BTXHALF 0x0080 -#define PHY_ANAR_10BTFULL 0x0040 -#define PHY_ANAR_10BTHALF 0x0020 -#define PHY_ANAR_PROTO4 0x0010 +/* + * PHY registers. + */ +#define PHY_BMCR 0x00 /* Basic Mode Control Register */ +#define PHY_BMSR 0x01 /* Basic Mode Status Register */ +#define PHY_ANAR 0x04 /* Auto-Negotiation Advertisment Register */ +#define PHY_LPAR 0x05 /* Auto-Negotiation Link Partner Ability Register */ +#define PHY_ANER 0x06 /* Auto-Negotiation Expansion Register */ + +#define PHY_BMCR_RESET 0x8000 /* Soft reset PHY. Self-clearing */ +#define PHY_BMCR_LOOPBK 0x4000 /* Enable loopback */ +#define PHY_BMCR_SPEEDSEL 0x2000 /* 1=100Mbps, 0=10Mbps */ +#define PHY_BMCR_AUTONEGENBL 0x1000 /* Auto-negotiation enabled */ +#define PHY_BMCR_ISOLATE 0x0400 /* Isolate ML6692 from MII */ +#define PHY_BMCR_AUTONEGRSTR 0x0200 /* Restart auto-negotiation. Self-clearing */ +#define PHY_BMCR_DUPLEX 0x0100 /* Full duplex operation */ +#define PHY_BMCR_COLLTEST 0x0080 /* Enable collision test */ + +#define PHY_BMSR_100BT4 0x8000 /* 100Base-T4 capable */ +#define PHY_BMSR_100BTXFULL 0x4000 /* 100Base-TX full duplex capable */ +#define PHY_BMSR_100BTXHALF 0x2000 /* 100Base-TX half duplex capable */ +#define PHY_BMSR_10BTFULL 0x1000 /* 10Base-T full duplex capable */ +#define PHY_BMSR_10BTHALF 0x0800 /* 10Base-T half duplex capable */ +#define PHY_BMSR_AUTONEGCOMP 0x0020 /* Auto-negotiation complete */ +#define PHY_BMSR_CANAUTONEG 0x0008 /* Auto-negotiation supported */ +#define PHY_BMSR_LINKSTAT 0x0004 /* Link is up */ +#define PHY_BMSR_EXTENDED 0x0001 /* Extended register capabilities */ + +#define PHY_ANAR_NEXTPAGE 0x8000 /* Additional link code word pages */ +#define PHY_ANAR_TLRFLT 0x2000 /* Remote wire fault detected */ +#define PHY_ANAR_100BT4 0x0200 /* 100Base-T4 capable */ +#define PHY_ANAR_100BTXFULL 0x0100 /* 100Base-TX full duplex capable */ +#define PHY_ANAR_100BTXHALF 0x0080 /* 100Base-TX half duplex capable */ +#define PHY_ANAR_10BTFULL 0x0040 /* 10Base-T full duplex capable */ +#define PHY_ANAR_10BTHALF 0x0020 /* 10Base-T half duplex capable */ +#define PHY_ANAR_PROTO4 0x0010 /* Protocol selection (00001 = 802.3) */ #define PHY_ANAR_PROTO3 0x0008 #define PHY_ANAR_PROTO2 0x0004 #define PHY_ANAR_PROTO1 0x0002 #define PHY_ANAR_PROTO0 0x0001 -/* - * PHY BMCR Basic Mode Control Register - */ -#define PHY_BMCR 0x00 -#define PHY_BMCR_RESET 0x8000 -#define PHY_BMCR_LOOPBK 0x4000 -#define PHY_BMCR_SPEEDSEL 0x2000 -#define PHY_BMCR_AUTONEGENBL 0x1000 -#define PHY_BMCR_RSVD0 0x0800 /* write as zero */ -#define PHY_BMCR_ISOLATE 0x0400 -#define PHY_BMCR_AUTONEGRSTR 0x0200 -#define PHY_BMCR_DUPLEX 0x0100 -#define PHY_BMCR_COLLTEST 0x0080 -#define PHY_BMCR_RSVD1 0x0040 /* write as zero, don't care */ -#define PHY_BMCR_RSVD2 0x0020 /* write as zero, don't care */ -#define PHY_BMCR_RSVD3 0x0010 /* write as zero, don't care */ -#define PHY_BMCR_RSVD4 0x0008 /* write as zero, don't care */ -#define PHY_BMCR_RSVD5 0x0004 /* write as zero, don't care */ -#define PHY_BMCR_RSVD6 0x0002 /* write as zero, don't care */ -#define PHY_BMCR_RSVD7 0x0001 /* write as zero, don't care */ - -/* - * PHY, BMSR Basic Mode Status Register - */ -#define PHY_BMSR 0x01 -#define PHY_BMSR_100BT4 0x8000 -#define PHY_BMSR_100BTXFULL 0x4000 -#define PHY_BMSR_100BTXHALF 0x2000 -#define PHY_BMSR_10BTFULL 0x1000 -#define PHY_BMSR_10BTHALF 0x0800 -#define PHY_BMSR_RSVD1 0x0400 /* write as zero, don't care */ -#define PHY_BMSR_RSVD2 0x0200 /* write as zero, don't care */ -#define PHY_BMSR_RSVD3 0x0100 /* write as zero, don't care */ -#define PHY_BMSR_RSVD4 0x0080 /* write as zero, don't care */ -#define PHY_BMSR_MFPRESUP 0x0040 -#define PHY_BMSR_AUTONEGCOMP 0x0020 -#define PHY_BMSR_REMFAULT 0x0010 -#define PHY_BMSR_CANAUTONEG 0x0008 -#define PHY_BMSR_LINKSTAT 0x0004 -#define PHY_BMSR_JABBER 0x0002 -#define PHY_BMSR_EXTENDED 0x0001 +#define PHY_LPAR_NEXTPAGE 0x8000 /* Additional link code word pages */ +#define PHY_LPAR_LPACK 0x4000 /* Link partner acknowledged receipt */ +#define PHY_LPAR_TLRFLT 0x2000 /* Remote wire fault detected */ +#define PHY_LPAR_100BT4 0x0200 /* 100Base-T4 capable */ +#define PHY_LPAR_100BTXFULL 0x0100 /* 100Base-TX full duplex capable */ +#define PHY_LPAR_100BTXHALF 0x0080 /* 100Base-TX half duplex capable */ +#define PHY_LPAR_10BTFULL 0x0040 /* 10Base-T full duplex capable */ +#define PHY_LPAR_10BTHALF 0x0020 /* 10Base-T half duplex capable */ +#define PHY_LPAR_PROTO4 0x0010 /* Protocol selection (00001 = 802.3) */ +#define PHY_LPAR_PROTO3 0x0008 +#define PHY_LPAR_PROTO2 0x0004 +#define PHY_LPAR_PROTO1 0x0002 +#define PHY_LPAR_PROTO0 0x0001 + +#define PHY_ANER_MLFAULT 0x0010 /* More than one link is up! */ +#define PHY_ANER_LPNPABLE 0x0008 /* Link partner supports next page */ +#define PHY_ANER_NPABLE 0x0004 /* Local port supports next page */ +#define PHY_ANER_PAGERX 0x0002 /* Page received */ +#define PHY_ANER_LPAUTONEG 0x0001 /* Link partner can auto-negotiate */ #endif /* NXE > 0 */