diff options
Diffstat (limited to 'sys/dev/xe')
| -rw-r--r-- | sys/dev/xe/if_xe.c | 2418 | ||||
| -rw-r--r-- | sys/dev/xe/if_xereg.h | 296 |
2 files changed, 2714 insertions, 0 deletions
diff --git a/sys/dev/xe/if_xe.c b/sys/dev/xe/if_xe.c new file mode 100644 index 0000000..d51d3d2 --- /dev/null +++ b/sys/dev/xe/if_xe.c @@ -0,0 +1,2418 @@ +/*- + * 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 1.18 1999/04/08 12:42:35 scott Exp $ + */ + +/* + * Portions of this software were derived from Werner Koch's xirc2ps driver + * for Linux under the terms of the following license (from v1.30 of the + * xirc2ps driver): + * + * Copyright (c) 1997 by Werner Koch (dd9jn) + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, and the entire permission notice in its entirety, + * including the disclaimer of warranties. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The + * following cards and media are, or will eventually be, 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 + * RealPort ditto + * Compaq and Intel cards using the Xircom CE3 hardware are also known to + * work. See the website for full details of supported hardware. + * + * Thanks to all who assisted with the development and testing of the driver, + * especially: Werner Koch, Duke Kamstra, Duncan Barclay, Ade Lovett, Jason + * George, Dru Nelson, Mike Kephart, Bill Rainey and Douglas Rand. Apologies + * if I've left out anyone who deserves a mention here. + * + * Driver web page: http://www.freebsd-uk.eu.org/~scott/xe_drv/ + * + * Mailing list: http://www.lovett.com/lists/freebsd-xircom/ + * or send "subscribe freebsd-xircom" to <majordomo@lovett.com> + * + * Author email: <scott@freebsd-uk.eu.org> + */ + +#define XE_DEBUG 1 + +#include "xe.h" +#include "card.h" +#include "apm.h" +#include "bpfilter.h" + +#if NXE > 0 + +#if NCARD > 0 + +#include <sys/param.h> +#include <sys/cdefs.h> +#include <sys/conf.h> +#include <sys/errno.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/mbuf.h> +#include <sys/select.h> +#include <sys/socket.h> +#include <sys/sockio.h> +#include <sys/systm.h> +#include <sys/uio.h> + +#include <net/ethernet.h> +#include <net/if.h> +#include <net/if_arp.h> +#include <net/if_dl.h> +#include <net/if_media.h> +#include <net/if_mib.h> +#if NBPFILTER > 0 +#include <net/bpf.h> +#endif /* NBPFILTER > 0 */ + +#include <i386/isa/isa.h> +#include <i386/isa/isa_device.h> +#include <i386/isa/if_xereg.h> +#include <machine/clock.h> +#if NAPM > 0 +#include <machine/apm_bios.h> +#endif /* NAPM > 0 */ + +#include <pccard/cardinfo.h> +#include <pccard/cis.h> +#include <pccard/driver.h> +#include <pccard/slot.h> + + + +/* + * One of these structures per allocated device + */ +struct xe_softc { + struct arpcom arpcom; + struct ifmedia ifmedia; + struct callout_handle chand; + struct ifmib_iso_8802_3 mibdata; + struct isa_device *dev; + struct pccard_devinfo *crd; + struct ifnet *ifp; + struct ifmedia *ifm; + char *card_type; /* Card model name */ + char *vendor; /* Card manufacturer */ + int unit; /* Unit number, from dev->id_unit */ + int srev; /* Silicon revision */ + int tx_queued; /* Packets currently waiting to transmit */ + int tx_ptr; /* Last value of PTR reg on card */ + int tx_collisions; /* Collisions since last successful send */ + int tx_timeouts; /* Count of transmit timeouts */ + int autoneg_status; /* Autonegotiation progress state */ + int media; /* Private media word */ + u_char modem; /* 1 = Multifunction card with modem */ + u_char ce3; /* 1 = CE3 class (100Mbit) adapter */ + u_char cem56; /* 1 = CEM56 class (CE3 + 56Kbps modem) adapter */ + u_char phy_ok; /* 1 = MII-compliant PHY found and initialised */ + u_char gone; /* 1 = Card bailed out */ +#if NAPM > 0 + struct apmhook suspend_hook; + struct apmhook resume_hook; +#endif /* NAPM > 0 */ +}; + +static struct xe_softc *sca[MAXSLOT]; + +/* + * MII command structure + */ +struct xe_mii_frame { + u_int8_t mii_stdelim; + u_int8_t mii_opcode; + u_int8_t mii_phyaddr; + u_int8_t mii_regaddr; + u_int8_t mii_turnaround; + u_int16_t mii_data; +}; + +/* + * For accessing card registers + */ +#define XE_INB(r) inb(scp->dev->id_iobase+(r)) +#define XE_INW(r) inw(scp->dev->id_iobase+(r)) +#define XE_OUTB(r, b) outb(scp->dev->id_iobase+(r), (b)) +#define XE_OUTW(r, w) outw(scp->dev->id_iobase+(r), (w)) +#define XE_SELECT_PAGE(p) XE_OUTB(XE_PSR, (p)) + +/* + * Horrid stuff for accessing CIS tuples + */ +#define CARD_MAJOR 50 +#define CISTPL_BUFSIZE 512 +#define CISTPL_TYPE(tpl) tpl[0] +#define CISTPL_LEN(tpl) tpl[2] +#define CISTPL_DATA(tpl,pos) tpl[4 + ((pos)<<1)] + +/* + * Media autonegotiation progress constants + */ +#define XE_AUTONEG_NONE 0 /* No autonegotiation in progress */ +#define XE_AUTONEG_WAITING 1 /* Waiting for transmitter to go idle */ +#define XE_AUTONEG_STARTED 2 /* Waiting for autonegotiation to complete */ +#define XE_AUTONEG_100TX 3 /* Trying to force 100baseTX link */ +#define XE_AUTONEG_FAIL 4 /* Autonegotiation failed */ + + +/* + * Prototypes start here + */ +static int xe_probe (struct isa_device *dev); +static int xe_card_init (struct pccard_devinfo *devi); +static int xe_attach (struct isa_device *dev); +static void xe_init (void *xscp); +static void xe_start (struct ifnet *ifp); +static int xe_ioctl (struct ifnet *ifp, u_long command, caddr_t data); +static int xe_card_intr (struct pccard_devinfo *devi); +static void xe_watchdog (struct ifnet *ifp); +static int xe_media_change (struct ifnet *ifp); +static void xe_media_status (struct ifnet *ifp, struct ifmediareq *mrp); +static timeout_t xe_setmedia; +static void xe_hard_reset (struct xe_softc *scp); +static void xe_soft_reset (struct xe_softc *scp); +static void xe_stop (struct xe_softc *scp); +static void xe_enable_intr (struct xe_softc *scp); +static void xe_disable_intr (struct xe_softc *scp); +static void xe_setmulti (struct xe_softc *scp); +static void xe_setaddrs (struct xe_softc *scp); +static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp); +static void xe_card_unload (struct pccard_devinfo *devi); + +/* + * MII functions + */ +static void xe_mii_sync (struct xe_softc *scp); +static int xe_mii_init (struct xe_softc *scp); +static void xe_mii_send (struct xe_softc *scp, u_int32_t bits, int cnt); +static int xe_mii_readreg (struct xe_softc *scp, struct xe_mii_frame *frame); +static int xe_mii_writereg (struct xe_softc *scp, struct xe_mii_frame *frame); +static u_int16_t xe_phy_readreg (struct xe_softc *scp, u_int16_t reg); +static void xe_phy_writereg (struct xe_softc *scp, u_int16_t reg, u_int16_t data); + +/* + * Debug functions + */ +#ifdef XE_DEBUG +#define XE_REG_DUMP(scp) xe_reg_dump((scp)) +#define XE_MII_DUMP(scp) xe_mii_dump((scp)) +static void xe_reg_dump (struct xe_softc *scp); +static void xe_mii_dump (struct xe_softc *scp); +#else +#define XE_REG_DUMP(scp) +#define XE_MII_DUMP(scp) +#endif + +#if NAPM > 0 +/* + * APM hook functions + */ +static int xe_suspend (void *xunit); +static int xe_resume (void *xunit); +#endif /* NAPM > 0 */ + + +/* + * PCMCIA driver hooks + */ +#ifdef PCCARD_MODULE +PCCARD_MODULE(xe, xe_card_init, xe_card_unload, xe_card_intr, 0, net_imask); +#else +static struct pccard_device xe_info = { /* For pre 3.1-STABLE code */ + "xe", + xe_card_init, + xe_card_unload, + xe_card_intr, + 0, + &net_imask +}; +DATA_SET(pccarddrv_set, xe_info); +#endif /* PCCARD_MODULE */ + + +/* + * ISA driver hooks. I'd like to do without these but the kernel config stuff + * seems to require them. + */ +struct isa_driver xedriver = { + xe_probe, + xe_attach, + "xe" +}; + + + +/* + * ISA probe routine. + * All of the supported devices are PCMCIA cards. I have no idea if it's even + * possible to successfully probe/attach these at boot time (pccardd normally + * does a lot of setup work) so I don't even bother trying. + */ +static int +xe_probe (struct isa_device *dev) { +#ifdef XE_DEBUG + printf("xe: probe\n"); +#endif + bzero(sca, MAXSLOT * sizeof(sca[0])); + return 0; +} + + +/* + * Two routines to read from/write to the attribute memory + * the write portion is used only for fixing up the RealPort cards, + * the reader portion was needed for debugging info, and duplicated some + * code in xe_card_init(), so it appears here instead with suitable + * modifications to xe_card_init() + * -aDe Lovett + */ +static int +xe_memwrite(struct pccard_devinfo *devi, off_t offset, u_char byte) +{ + struct iovec iov; + struct uio uios; + + iov.iov_base = &byte; + iov.iov_len = sizeof(byte); + + uios.uio_iov = &iov; + uios.uio_iovcnt = 1; + uios.uio_offset = offset; + uios.uio_resid = sizeof(byte); + uios.uio_segflg = UIO_SYSSPACE; + uios.uio_rw = UIO_WRITE; + uios.uio_procp = 0; + + return cdevsw[CARD_MAJOR]->d_write(makedev(CARD_MAJOR, devi->slt->slotnum), &uios, 0); +} + + +static int +xe_memread(struct pccard_devinfo *devi, off_t offset, u_char *buf, int size) +{ + struct iovec iov; + struct uio uios; + + iov.iov_base = buf; + iov.iov_len = size; + + uios.uio_iov = &iov; + uios.uio_iovcnt = 1; + uios.uio_offset = offset; + uios.uio_resid = size; + uios.uio_segflg = UIO_SYSSPACE; + uios.uio_rw = UIO_READ; + uios.uio_procp = 0; + + return cdevsw[CARD_MAJOR]->d_read(makedev(CARD_MAJOR, devi->slt->slotnum), &uios, 0); +} + + +/* + * Hacking for RealPort cards + */ +static int +xe_cem56fix(struct xe_softc *scp) +{ + struct pccard_devinfo *devi; + struct slot *slt; + struct slot_ctrl *ctrl; + int ioport; + +#ifdef XE_DEBUG + u_char buf[32]; + int i; +#endif + + /* initialise a few variables */ + devi = scp->crd; + slt = devi->slt; + ctrl = slt->ctrl; + + /* move the modem (on I/O 0), to I/0 1 + * not entirely sure if this is necessary, but it's in the Linux + * driver, so we do it + */ + + /* save the modem data */ + slt->io[1].window = 1; + slt->io[1].flags = slt->io[0].flags; + slt->io[1].start = slt->io[0].start; + slt->io[1].size = slt->io[0].size; + + /* unregister I/O port 0 */ + ctrl->mapio( slt, 0 ); + + /* re-register modem as I/O port 1 */ + ctrl->mapio( slt, 1 ); + + /* find an available I/O address to use for the Ethernet part */ + slt->io[0].window = 0; + slt->io[0].flags = IODF_WS|IODF_16BIT|IODF_ZEROWS|IODF_ACTIVE; + slt->io[0].size = 16; + for (ioport = 0x300; ioport < 0x400; ioport += 0x10) { + slt->io[0].start = ioport; + if (ctrl->mapio( slt, 0 ) == 0) + break; + } + + /* did we find one? */ + if (ioport == 0x400) { + printf( "xe%d: xe_cem56fix: no free address space\n", scp->unit ); + return -1; + } + + /* munge the id_iobase entry for use by the rest of the driver */ +#ifdef XE_DEBUG + printf( "xe%d: using 0x%x for RealPort ethernet\n", scp->unit, ioport ); +#endif + scp->dev->id_iobase = ioport; + + /* first bit of magic */ + xe_memwrite( devi, 0x800, 0x47 ); + xe_memwrite( devi, 0x80a, ioport & 0xff ); + xe_memwrite( devi, 0x80c, (ioport >> 8) & 0xff ); + +#ifdef XE_DEBUG + if (xe_memread( devi, 0x800, buf, 14 ) == 0) { + printf( "ECOR:" ); + for (i = 0; i < 7; i++) + printf( " %02x", buf[i*2] ); + printf( "\n" ); + } + + if (xe_memread( devi, 0x820, buf, 8 ) == 0) { + printf( "DCOR:" ); + for (i = 0; i < 4; i++) + printf( " %02x", buf[i*2] ); + printf( "\n" ); + } + + if (xe_memread( devi, 0x840, buf, 20 ) == 0) { + printf( "SCOR:" ); + for (i = 0; i < 10; i++) + printf( " %02x", buf[i*2] ); + printf( "\n" ); + } +#endif + + /* second bit of magic */ + xe_memwrite( devi, 0x820, 0x01 ); + xe_memwrite( devi, 0x822, 0x0c ); + xe_memwrite( devi, 0x824, 0x00 ); + xe_memwrite( devi, 0x826, 0x00 ); + xe_memwrite( devi, 0x828, 0x00 ); + + /* success! */ + return 0; +} + + +/* + * PCMCIA probe routine. + * Probe and identify the device. Called by the slot manager when the card is + * inserted or the machine wakes up from suspend mode. Assmes that the slot + * structure has been initialised already. + */ +static int +xe_card_init(struct pccard_devinfo *devi) +{ + struct xe_softc *scp; + struct isa_device *dev; + u_char buf[CISTPL_BUFSIZE]; + u_char ver_str[CISTPL_BUFSIZE>>1]; + off_t offs; + int unit, success, rc, i; + + unit = devi->isahd.id_unit; + scp = sca[unit]; + dev = &devi->isahd; + success = 0; + +#ifdef XE_DEBUG + printf("xe: Probing for unit %d\n", unit); +#endif + + /* Check that unit number is OK */ + if (unit > MAXSLOT) { + printf("xe: bad unit (%d)\n", unit); + return (ENODEV); + } + + /* Don't attach an active device */ + if (scp && !scp->gone) { + printf("xe: unit already attached (%d)\n", unit); + return (EBUSY); + } + + /* Allocate per-instance storage */ + if (!scp) { + if ((scp = malloc(sizeof(*scp), M_DEVBUF, M_NOWAIT)) == NULL) { + printf("xe%d: failed to allocage driver storage\n", unit); + return (ENOMEM); + } + bzero(scp, sizeof(*scp)); + } + + /* Re-attach an existing device */ + if (scp->gone) { + scp->gone = 0; + return 0; + } + + /* Grep through CIS looking for relevant tuples */ + offs = 0; + do { + u_int16_t vendor; + u_int8_t rev, media, prod; + + /* + * Read tuples one at a time into buf. Sucks, but it only happens once. + * XXX - If the stuff we need isn't in attribute memory, or (worse yet) + * XXX - attribute memory isn't mapped, we're FUBAR. Maybe need to do an + * XXX - ioctl on the card device and follow links? + * XXX - Not really the driver's problem, PCCARD should handle all this! + */ + if ((rc = xe_memread( devi, offs, buf, CISTPL_BUFSIZE )) == 0) { + + switch (CISTPL_TYPE(buf)) { + + case 0x15: /* Grab version string (needed to ID some weird CE2's) */ +#ifdef XE_DEBUG + printf("xe%d: Got version string (0x15)\n", unit); +#endif + for (i = 0; i < CISTPL_LEN(buf); ver_str[i] = CISTPL_DATA(buf, i++)); + ver_str[i] = '\0'; + ver_str[CISTPL_BUFSIZE>>1 - 1] = CISTPL_LEN(buf); + success++; + break; + + case 0x20: /* Figure out what type of card we have */ +#ifdef XE_DEBUG + printf("xe%d: Got card ID (0x20)\n", unit); +#endif + vendor = CISTPL_DATA(buf, 0) + (CISTPL_DATA(buf, 1) << 8); + rev = CISTPL_DATA(buf, 2); + media = CISTPL_DATA(buf, 3); + prod = CISTPL_DATA(buf, 4); + + switch (vendor) { /* Get vendor ID */ + case 0x0105: + scp->vendor = "Xircom"; break; + case 0x0138: + case 0x0183: + scp->vendor = "Compaq"; break; + case 0x0089: + scp->vendor = "Intel"; break; + default: + scp->vendor = "Unknown"; + } + + if (!((prod & 0x40) && (media & 0x01))) { +#ifdef XE_DEBUG + printf("xe%d: Not a PCMCIA Ethernet card!\n", unit); +#endif + rc = ENODEV; /* Not a PCMCIA Ethernet device */ + } + else { + if (media & 0x10) { /* Ethernet/modem cards */ +#ifdef XE_DEBUG + printf("xe%d: Card is Ethernet/modem combo\n", unit); +#endif + scp->modem = 1; + switch (prod & 0x0f) { + case 1: + scp->card_type = "CEM"; break; + case 2: + scp->card_type = "CEM2"; break; + case 3: + scp->card_type = "CEM3"; break; + case 4: + scp->card_type = "CEM33"; break; + case 5: + scp->ce3 = 1; + scp->card_type = "CEM56M"; break; + case 6: + case 7: /* Some kind of RealPort card */ + scp->ce3 = 1; + scp->cem56 = 1; + scp->card_type = "CEM56"; break; + default: + rc = ENODEV; + } + } + else { /* Ethernet-only cards */ +#ifdef XE_DEBUG + printf("xe%d: Card is Ethernet only\n", unit); +#endif + switch (prod & 0x0f) { + case 1: + scp->card_type = "CE"; break; + case 2: + scp->card_type = "CE2"; break; + case 3: + scp->ce3 = 1; + scp->card_type = "CE3"; break; + default: + rc = ENODEV; + } + } + } + success++; + break; + + case 0x22: /* Get MAC address */ +#ifdef XE_DEBUG + printf("xe%d: Got MAC address (0x22)\n", unit); +#endif + if ((CISTPL_LEN(buf) == 8) && + (CISTPL_DATA(buf, 0) == 0x04) && + (CISTPL_DATA(buf, 1) == ETHER_ADDR_LEN)) { + for (i = 0; i < ETHER_ADDR_LEN; scp->arpcom.ac_enaddr[i] = CISTPL_DATA(buf, i+2), i++); + } + success++; + break; + default: + } + } + + /* Skip to next tuple */ + offs += ((CISTPL_LEN(buf) + 2) << 1); + + } while ((CISTPL_TYPE(buf) != 0xff) && (CISTPL_LEN(buf) != 0xff) && (rc == 0)); + + + /* Die now if something went wrong above */ + if ((rc != 0) || (success < 3)) { + free(scp, M_DEVBUF); + return rc; + } + + /* Check for certain strange CE2's that look like CE's */ + if (strcmp(scp->card_type, "CE") == 0) { + u_char *str = ver_str; +#ifdef XE_DEBUG + printf("xe%d: Checking for weird CE2 string\n", unit); +#endif + str += strlen(str) + 1; /* Skip forward to 3rd version string */ + str += strlen(str) + 1; + str += strlen(str) + 1; + for (i = 0; i < strlen(str) - 2; i++) { + if (bcmp(&str[i], "CE2", 3) ==0) { /* Look for "CE2" string */ + scp->card_type = "CE2"; + } + } + } + + /* Reject unsupported cards */ + if (strcmp(scp->card_type, "CE") == 0 || strcmp(scp->card_type, "CEM") == 0) { + printf("xe%d: Sorry, your %s card is not supported :(\n", unit, scp->card_type); + free(scp, M_DEVBUF); + return ENODEV; + } + + /* Fill in some private data */ + sca[unit] = scp; + scp->dev = &devi->isahd; + scp->crd = devi; + scp->ifp = &scp->arpcom.ac_if; + scp->ifm = &scp->ifmedia; + scp->unit = unit; + scp->autoneg_status = 0; + + /* Hack RealPorts into submission */ + if (scp->cem56 && xe_cem56fix(scp) < 0) { + printf( "xe%d: Unable to fix your RealPort\n", unit ); + sca[unit] = 0; + free(scp, M_DEVBUF); + return ENODEV; + } + + /* Attempt to attach the device */ + if (!xe_attach(scp->dev)) { + sca[unit] = 0; + free(scp, M_DEVBUF); + return ENXIO; + } + +#if NAPM > 0 + /* Establish APM hooks once device attached */ + scp->suspend_hook.ah_name = "xe_suspend"; + scp->suspend_hook.ah_fun = xe_suspend; + scp->suspend_hook.ah_arg = (void *)unit; + scp->suspend_hook.ah_order = APM_MIN_ORDER; + apm_hook_establish(APM_HOOK_SUSPEND, &scp->suspend_hook); + scp->resume_hook.ah_name = "xe_resume"; + scp->resume_hook.ah_fun = xe_resume; + scp->resume_hook.ah_arg = (void *)unit; + scp->resume_hook.ah_order = APM_MIN_ORDER; + apm_hook_establish(APM_HOOK_RESUME, &scp->resume_hook); +#endif /* NAPM > 0 */ + + /* Success */ + return 0; +} + + +/* + * Attach a device (called when xe_card_init succeeds). Assume that the probe + * routine has set up the softc structure correctly and that we can trust the + * unit number. + */ +static int +xe_attach (struct isa_device *dev) { + struct xe_softc *scp = sca[dev->id_unit]; + int i; + +#ifdef XE_DEBUG + printf("xe%d: attach\n", scp->unit); +#endif + + /* Initialise the ifnet structure */ + if (!scp->ifp->if_name) { + scp->ifp->if_softc = scp; + scp->ifp->if_name = "xe"; + scp->ifp->if_unit = scp->unit; + scp->ifp->if_timer = 0; + scp->ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); + scp->ifp->if_linkmib = &scp->mibdata; + scp->ifp->if_linkmiblen = sizeof scp->mibdata; + scp->ifp->if_output = ether_output; + scp->ifp->if_start = xe_start; + scp->ifp->if_ioctl = xe_ioctl; + scp->ifp->if_watchdog = xe_watchdog; + scp->ifp->if_init = xe_init; + scp->ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; + } + + /* Initialise the ifmedia structure */ + ifmedia_init(scp->ifm, 0, xe_media_change, xe_media_status); + callout_handle_init(&scp->chand); + + /* + * Fill in supported media types. Some cards _do_ support full duplex + * operation, but this driver doesn't, yet. Therefore we leave those modes + * out of the list. We support some form of autoselection in all cases. + */ + if (scp->ce3) { + ifmedia_add(scp->ifm, IFM_ETHER|IFM_100_TX, 0, NULL); + ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL); + } + else { + ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL); + ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_2, 0, NULL); + } + ifmedia_add(scp->ifm, IFM_ETHER|IFM_AUTO, 0, NULL); + + /* Default is to autoselect best supported media type */ + ifmedia_set(scp->ifm, IFM_ETHER|IFM_AUTO); + + /* Print some useful information */ + printf("\nxe%d: %s %s%s%s\n", + scp->unit, + scp->vendor, + scp->card_type, + scp->ce3 ? ", 100Mbps capable" : "", + scp->cem56 ? ", with modem" : ""); + printf("xe%d: Ethernet address %02x", scp->unit, scp->arpcom.ac_enaddr[0]); + for (i = 1; i < ETHER_ADDR_LEN; i++) { + printf(":%02x", scp->arpcom.ac_enaddr[i]); + } + printf("\n"); + + /* Attach the interface */ + if_attach(scp->ifp); + ether_ifattach(scp->ifp); + +#if NBPFILTER > 0 + /* If BPF is in the kernel, call the attach for it */ +#ifdef XE_DEBUG + printf("xe%d: BPF listener attached\n", scp->unit); +#endif + bpfattach(scp->ifp, DLT_EN10MB, sizeof(struct ether_header)); +#endif + + /* Done */ + return 1; +} + + +/* + * Initialize device. Completes the reset procedure on the card and starts + * output. If there's an autonegotiation in progress we DON'T do anything; + * the media selection code will call us again when it's done. + */ +static void +xe_init(void *xscp) { + struct xe_softc *scp = xscp; + int s; + +#ifdef XE_DEBUG + printf("xe%d: init\n", scp->unit); +#endif + + if (scp->gone) return; + + if (TAILQ_EMPTY(&scp->ifp->if_addrhead)) return; + + /* Reset transmitter flags */ + scp->tx_queued = 0; + scp->tx_ptr = 0; + scp->tx_collisions = 0; + scp->ifp->if_timer = 0; + + s = splimp(); + + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC0, 0x20); /* Disable source insertion (WTF is that?) */ + + /* + * Set the 'local memory dividing line' -- splits the 32K card memory into + * 8K for transmit buffers and 24K for receive. This is done automatically + * on newer revision cards. + */ + if (scp->srev != 1) { + XE_SELECT_PAGE(2); + XE_OUTW(XE_RBS, 0x2000); + } + + /* Set up multicast addresses */ + xe_setmulti(scp); + + /* Fix the data offset register -- reset leaves it off-by-one */ + XE_SELECT_PAGE(0); + XE_OUTW(XE_DOR, 0x2000); + + /* + * Set MAC interrupt masks and clear status regs. The bit names are direct + * from the Linux code; I have no idea what most of them do. + */ + XE_SELECT_PAGE(0x40); /* Bit 7..0 */ + XE_OUTB(XE_RXM0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */ + XE_OUTB(XE_TXM0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ + XE_OUTB(XE_TXM1, 0xb0); /* rsv, rsv, PTD, EXT, rsv, rsv, rsv, rsv */ + XE_OUTB(XE_RXS0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */ + XE_OUTB(XE_TXS0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ + XE_OUTB(XE_TXS1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */ + + /* + * Check for an in-progress autonegotiation. If one is active, just set + * IFF_RUNNING and return. The media selection code will call us again when + * it's done. + */ + if (scp->autoneg_status) { + scp->ifp->if_flags |= IFF_RUNNING; + } + else { + /* Enable receiver, put MAC online */ + XE_SELECT_PAGE(0x40); + XE_OUTB(XE_OCR, XE_OCR_RX_ENABLE|XE_OCR_ONLINE); + + /* Set up IMR, enable interrupts */ + xe_enable_intr(scp); + + /* Attempt to start output */ + scp->ifp->if_flags |= IFF_RUNNING; + scp->ifp->if_flags &= ~IFF_OACTIVE; + xe_start(scp->ifp); + } + + (void)splx(s); +} + + +/* + * Start output on interface. We make two assumptions here: + * 1) that the current priority is set to splimp _before_ this code + * is called *and* is returned to the appropriate priority after + * return + * 2) that the IFF_OACTIVE flag is checked before this code is called + * (i.e. that the output part of the interface is idle) + */ +static void +xe_start(struct ifnet *ifp) { + struct xe_softc *scp = ifp->if_softc; + struct mbuf *mbp; + + if (scp->gone) return; + + /* + * Loop while there are packets to be sent, and space to send them. + */ + while (1) { + IF_DEQUEUE(&ifp->if_snd, mbp); /* Suck a packet off the send queue */ + + if (mbp == NULL) { + /* + * We are using the !OACTIVE flag to indicate to the outside world that + * we can accept an additional packet rather than that the transmitter + * is _actually_ active. Indeed, the transmitter may be active, but if + * we haven't filled all the buffers with data then we still want to + * accept more. + */ + ifp->if_flags &= ~IFF_OACTIVE; + return; + } + + if (xe_pio_write_packet(scp, mbp) != 0) { + IF_PREPEND(&ifp->if_snd, mbp); /* Push the packet back onto the queue */ + ifp->if_flags |= IFF_OACTIVE; + return; + } + +#if NBPFILTER > 0 + /* Tap off here if there is a bpf listener */ + if (ifp->if_bpf) { +#if XE_DEBUG > 1 + printf("xe%d: sending output packet to BPF\n", scp->unit); +#endif + bpf_mtap(ifp, mbp); + } +#endif /* NBPFILTER > 0 */ + + ifp->if_timer = 5; /* In case we don't hear from the card again */ + scp->tx_queued++; + + m_freem(mbp); + } +} + + +/* + * Process an ioctl request. Adapted from the ed driver. + */ +static int +xe_ioctl (register struct ifnet *ifp, u_long command, caddr_t data) { + struct xe_softc *scp; + int s, error; + + scp = ifp->if_softc; + error = 0; + + if (scp->gone) { + return ENXIO; + } + + s = splimp(); + + switch (command) { + + case SIOCSIFADDR: + case SIOCGIFADDR: + case SIOCSIFMTU: + error = ether_ioctl(ifp, command, data); + break; + + case SIOCSIFFLAGS: + /* + * If the interface is marked up and stopped, then start it. If it is + * marked down and running, then stop it. + */ + if (ifp->if_flags & IFF_UP) { + if (!(ifp->if_flags & IFF_RUNNING)) { + xe_hard_reset(scp); + xe_setmedia(scp); + xe_init(scp); + } + } + else { + if (ifp->if_flags & IFF_RUNNING) + xe_stop(scp); + } + + case SIOCADDMULTI: + case SIOCDELMULTI: + /* + * Multicast list has (maybe) changed; set the hardware filter + * accordingly. This also serves to deal with promiscuous mode if we have + * a BPF listener active. + */ + xe_setmulti(scp); + error = 0; + break; + + case SIOCSIFMEDIA: + case SIOCGIFMEDIA: + /* + * Someone wants to get/set media options. + */ + error = ifmedia_ioctl(ifp, (struct ifreq *)data, &scp->ifmedia, command); + break; + + default: + error = EINVAL; + } + + (void)splx(s); + + return error; +} + + +/* + * Card interrupt handler: should return true if the interrupt was for us, in + * case we are sharing our IRQ line with other devices (this will probably be + * the case for multifunction cards). + * + * This function is probably more complicated than it needs to be, as it + * attempts to deal with the case where multiple packets get sent between + * interrupts. This is especially annoying when working out the collision + * stats. Not sure whether this case ever really happens or not (maybe on a + * slow/heavily loaded machine?) so it's probably best to leave this like it + * is. + * + * Note that the crappy PIO used to get packets on and off the card means that + * you will spend a lot of time in this routine -- I can get my P150 to spend + * 90% of its time servicing interrupts if I really hammer the network. Could + * fix this, but then you'd start dropping/losing packets. The moral of this + * story? If you want good network performance _and_ some cycles left over to + * get your work done, don't buy a Xircom card. Or convince them to tell me + * how to do memory-mapped I/O :) + */ +static int +xe_card_intr(struct pccard_devinfo *devi) { + struct xe_softc *scp; + struct ifnet *ifp; + int unit, result; + u_int16_t rx_bytes, rxs, txs; + u_int8_t psr, isr, esr, rsr; + + unit = devi->isahd.id_unit; + scp = sca[unit]; + ifp = &scp->arpcom.ac_if; + rx_bytes = 0; /* Bytes received on this interrupt */ + result = 0; /* Set true if the interrupt is for us */ + + if (scp->gone) + return 0; + + if (scp->ce3) { + XE_OUTB(XE_CR, 0); /* Disable interrupts */ + } + + psr = XE_INB(XE_PSR); /* Stash the current register page */ + + /* + * Read ISR to see what caused this interrupt. Note that this clears the + * ISR on CE2 type cards. + */ + if ((isr = XE_INB(XE_ISR)) && isr != 0xff) { + + result = 1; /* This device did generate an int */ + esr = XE_INB(XE_ESR); /* Read the other status registers */ + XE_SELECT_PAGE(0x40); + rxs = XE_INB(XE_RXS0); + XE_OUTB(XE_RXS0, ~rxs & 0xff); + txs = XE_INB(XE_TXS0); + txs |= XE_INB(XE_TXS1) << 8; + XE_OUTB(XE_TXS0, 0); + XE_OUTB(XE_TXS1, 0); + XE_SELECT_PAGE(0); + +#if XE_DEBUG > 3 + printf("xe%d: ISR=%#2.2x ESR=%#2.2x RXS=%#2.2x TXS=%#4.4x\n", unit, isr, esr, rxs, txs); +#endif + + /* + * Handle transmit interrupts + */ + if (isr & XE_ISR_TX_PACKET) { + u_int8_t new_ptr, sent; + + if ((new_ptr = XE_INB(XE_PTR)) < scp->tx_ptr) /* Update packet count */ + sent = (0xff - scp->tx_ptr) + new_ptr; /* PTR rolled over */ + else + sent = new_ptr - scp->tx_ptr; + + if (sent > 0) { /* Packets sent since last interrupt */ + scp->tx_ptr = new_ptr; + scp->tx_queued -= sent; + ifp->if_opackets += sent; + ifp->if_collisions += scp->tx_collisions; + + /* + * Collision stats are a PITA. If multiples frames have been sent, we + * distribute any outstanding collision count equally amongst them. + * However, if we're missing interrupts we're quite likely to also + * miss some collisions; thus the total count will be off anyway. + * Likewise, if we miss a frame dropped due to excessive collisions + * any outstanding collisions count will be held against the next + * frame to be successfully sent. Hopefully it averages out in the + * end! + * XXX - This will screw up if tx_collisions/sent > 14. FIX IT! + */ + switch (scp->tx_collisions) { + case 0: + break; + case 1: + scp->mibdata.dot3StatsSingleCollisionFrames++; + scp->mibdata.dot3StatsCollFrequencies[0]++; + break; + default: + if (sent == 1) { + scp->mibdata.dot3StatsMultipleCollisionFrames++; + scp->mibdata.dot3StatsCollFrequencies[scp->tx_collisions-1]++; + } + else { /* Distribute across multiple frames */ + scp->mibdata.dot3StatsMultipleCollisionFrames += sent; + scp->mibdata. + dot3StatsCollFrequencies[scp->tx_collisions/sent] += sent - scp->tx_collisions%sent; + scp->mibdata. + dot3StatsCollFrequencies[scp->tx_collisions/sent + 1] += scp->tx_collisions%sent; + } + } + scp->tx_collisions = 0; + } + ifp->if_timer = 0; + ifp->if_flags &= ~IFF_OACTIVE; + } + if (txs & 0x0002) { /* Excessive collisions (packet dropped) */ + ifp->if_collisions += 16; + ifp->if_oerrors++; + scp->tx_collisions = 0; + scp->mibdata.dot3StatsExcessiveCollisions++; + scp->mibdata.dot3StatsMultipleCollisionFrames++; + scp->mibdata.dot3StatsCollFrequencies[15]++; + XE_OUTB(XE_CR, XE_CR_RESTART_TX); + } + if (txs & 0x0040) /* Transmit aborted -- probably collisions */ + scp->tx_collisions++; + + + /* + * Handle receive interrupts + */ + while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PKT_RX) { + + if ((rsr = XE_INB(XE_RSR)) & XE_RSR_RX_OK) { + struct ether_header *ehp; + struct mbuf *mbp; + u_int16_t len; + + len = XE_INW(XE_RBC); + + if (len == 0) + continue; + +#if 0 + /* + * Limit the amount of time we spend in this loop, dropping packets if + * necessary. The Linux code does this with considerably more + * finesse, adjusting the threshold dynamically. + */ + if ((rx_bytes += len) > 22000) { + ifp->if_iqdrops++; + scp->mibData.dot3StatsMissedFrames++; + XE_OUTW(XE_DOR, 0x8000); + continue; + } +#endif + + if (len & 0x01) + len++; + + MGETHDR(mbp, M_DONTWAIT, MT_DATA); /* Allocate a header mbuf */ + if (mbp != NULL) { + mbp->m_pkthdr.rcvif = ifp; + mbp->m_pkthdr.len = mbp->m_len = len; + + /* + * If the mbuf header isn't big enough for the packet, attach an + * mbuf cluster to hold it. The +2 is to allow for the nasty little + * alignment hack below. + */ + if (len + 2 > MHLEN) { + MCLGET(mbp, M_DONTWAIT); + if ((mbp->m_flags & M_EXT) == 0) { + m_freem(mbp); + mbp = NULL; + } + } + } + + if (mbp != NULL) { + /* + * The Ethernet header is 14 bytes long; thus the actual packet data + * won't be 32-bit aligned when it's dumped into the mbuf. We + * offset everything by 2 bytes to fix this. Apparently the + * alignment is important for NFS, damn its eyes. + */ + mbp->m_data += 2; + ehp = mtod(mbp, struct ether_header *); + + /* + * Now get the packet, including the Ethernet header and trailer (?) + * We use programmed I/O, because we don't know how to do shared + * memory with these cards. So yes, it's real slow, and heavy on + * the interrupts (CPU on my P150 maxed out at ~950KBps incoming). + */ + if (scp->srev == 0) { /* Workaround a bug in old cards */ + u_short rhs; + + XE_SELECT_PAGE(5); + rhs = XE_INW(XE_RHS); + XE_SELECT_PAGE(0); + + rhs += 3; /* Skip control info */ + + if (rhs >= 0x8000) + rhs = 0; + + if (rhs + len > 0x8000) { + int i; + + /* + * XXX - This i-- seems very wrong, but it's what the Linux guys + * XXX - do. Need someone with an old CE2 to test this for me. + * XXX - 99/3/28: Changed the first i-- to an i++, maybe that'll + * XXX - fix it? It seems as though the previous version would + * XXX - have caused an infinite loop (what, another one?). + */ + for (i = 0; i < len; i++, rhs++) { + ((char *)ehp)[i] = XE_INB(XE_EDP); + if (rhs = 0x8000) { + rhs = 0; + i--; + } + } + } + else + insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1); + } + else + insw(scp->dev->id_iobase+XE_EDP, ehp, len >> 1); + +#if NBPFILTER > 0 + /* + * Check if there's a BPF listener on this interface. If so, hand + * off the raw packet to bpf. + */ + if (ifp->if_bpf) { +#if XE_DEBUG > 1 + printf("xe%d: passing input packet to BPF\n", scp->unit); +#endif + bpf_mtap(ifp, mbp); + + /* + * Note that the interface cannot be in promiscuous mode if there + * are no BPF listeners. And if we are in promiscuous mode, we + * have to check if this packet is really ours. + */ + if ((ifp->if_flags & IFF_PROMISC) && + bcmp(ehp->ether_dhost, scp->arpcom.ac_enaddr, sizeof(ehp->ether_dhost)) != 0 && + (rsr & XE_RSR_PHYS_PKT)) { + m_freem(mbp); + mbp = NULL; + } + } +#endif /* NBPFILTER > 0 */ + + if (mbp != NULL) { + mbp->m_pkthdr.len = mbp->m_len = len - ETHER_HDR_LEN; + mbp->m_data += ETHER_HDR_LEN; /* Strip off Ethernet header */ + ether_input(ifp, ehp, mbp); /* Send the packet on its way */ + ifp->if_ipackets++; /* Success! */ + } + XE_OUTW(XE_DOR, 0x8000); /* skip_rx_packet command */ + } + } + else if (rsr & XE_RSR_LONG_PKT) { /* Packet length >1518 bytes */ + scp->mibdata.dot3StatsFrameTooLongs++; + ifp->if_ierrors++; + } + else if (rsr & XE_RSR_CRC_ERR) { /* Bad checksum on packet */ + scp->mibdata.dot3StatsFCSErrors++; + ifp->if_ierrors++; + } + else if (rsr & XE_RSR_ALIGN_ERR) { /* Packet alignment error */ + scp->mibdata.dot3StatsAlignmentErrors++; + ifp->if_ierrors++; + } + } + if (rxs & 0x10) { /* Receiver overrun */ + scp->mibdata.dot3StatsInternalMacReceiveErrors++; + ifp->if_ierrors++; + XE_OUTB(XE_CR, XE_CR_CLEAR_OVERRUN); + } + } + + XE_SELECT_PAGE(psr); /* Restore saved page */ + XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Re-enable interrupts */ + + /* XXX - Could force an int here, instead of dropping packets? */ + /* XXX - XE_OUTB(XE_CR, XE_CR_ENABLE_INTR|XE_CE_FORCE_INTR); */ + + return result; +} + + +/* + * Device timeout/watchdog routine. Called automatically if we queue a packet + * for transmission but don't get an interrupt within a specified timeout + * (usually 5 seconds). When this happens we assume the worst and reset the + * card. + */ +static void +xe_watchdog(struct ifnet *ifp) { + struct xe_softc *scp = ifp->if_softc; + + if (scp->gone) return; + + printf("xe%d: watchdog timeout; resetting card\n", scp->unit); + scp->tx_timeouts++; + ifp->if_oerrors += scp->tx_queued; + xe_stop(scp); + xe_hard_reset(scp); + xe_setmedia(scp); + xe_init(scp); +} + + +/* + * Change media selection. + */ +static int +xe_media_change(struct ifnet *ifp) { + struct xe_softc *scp = ifp->if_softc; + +#ifdef XE_DEBUG + printf("xe%d: media_change\n", ifp->if_unit); +#endif + + if (IFM_TYPE(scp->ifm->ifm_media) != IFM_ETHER) + return(EINVAL); + + /* + * Some card/media combos aren't always possible -- filter those out here. + */ + if ((IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_AUTO || + IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_100_TX) && !scp->phy_ok) + return (EINVAL); + + xe_setmedia(scp); + + return 0; +} + + +/* + * Return current media selection. + */ +static void +xe_media_status(struct ifnet *ifp, struct ifmediareq *mrp) { + +#ifdef XE_DEBUG + printf("xe%d: media_status\n", ifp->if_unit); +#endif + + mrp->ifm_active = ((struct xe_softc *)ifp->if_softc)->media; + + return; +} + + +/* + * Select active media. + */ +static void xe_setmedia(void *xscp) { + struct xe_softc *scp = xscp; + u_int16_t bmcr, bmsr, anar, lpar; + +#ifdef XE_DEBUG + printf("xe%d: setmedia\n", scp->unit); +#endif + + /* Cancel any pending timeout */ + untimeout(xe_setmedia, scp, scp->chand); + xe_disable_intr(scp); + + /* Select media */ + scp->media = IFM_ETHER; + switch (IFM_SUBTYPE(scp->ifm->ifm_media)) { + + case IFM_AUTO: /* Autoselect media */ + scp->media = IFM_ETHER|IFM_AUTO; + + /* + * Autoselection is really awful. It goes something like this: + * + * Wait until the transmitter goes idle (2sec timeout). + * Reset card + * IF a 100Mbit PHY exists + * Start NWAY autonegotiation (3.5sec timeout) + * IF that succeeds + * Select 100baseTX or 10baseT, whichever was detected + * ELSE + * Reset card + * IF a 100Mbit PHY exists + * Try to force a 100baseTX link (3sec timeout) + * IF that succeeds + * Select 100baseTX + * ELSE + * Disable the PHY + * ENDIF + * ENDIF + * ENDIF + * ENDIF + * IF nothing selected so far + * IF a 100Mbit PHY exists + * Select 10baseT + * ELSE + * Select 10baseT or 10base2, whichever is connected + * ENDIF + * ENDIF + */ + switch (scp->autoneg_status) { + + case XE_AUTONEG_NONE: +#ifdef XE_DEBUG + printf("xe%d: Waiting for idle transmitter\n", scp->unit); +#endif + scp->arpcom.ac_if.if_flags |= IFF_OACTIVE; + scp->autoneg_status = XE_AUTONEG_WAITING; + scp->chand = timeout(xe_setmedia, scp, hz * 2); + return; + + case XE_AUTONEG_WAITING: + xe_soft_reset(scp); + if (scp->phy_ok) { +#ifdef XE_DEBUG + printf("xe%d: Starting autonegotiation\n", scp->unit); +#endif + bmcr = xe_phy_readreg(scp, PHY_BMCR); + bmcr &= ~(PHY_BMCR_AUTONEGENBL); + xe_phy_writereg(scp, PHY_BMCR, bmcr); + anar = xe_phy_readreg(scp, PHY_ANAR); + anar &= ~(PHY_ANAR_100BT4|PHY_ANAR_100BTXFULL|PHY_ANAR_10BTFULL); + anar |= PHY_ANAR_100BTXHALF|PHY_ANAR_10BTHALF; + xe_phy_writereg(scp, PHY_ANAR, anar); + bmcr |= PHY_BMCR_AUTONEGENBL|PHY_BMCR_AUTONEGRSTR; + xe_phy_writereg(scp, PHY_BMCR, bmcr); + scp->autoneg_status = XE_AUTONEG_STARTED; + scp->chand = timeout(xe_setmedia, scp, hz * 7/2); + return; + } + else { + scp->autoneg_status = XE_AUTONEG_FAIL; + } + break; + + case XE_AUTONEG_STARTED: + bmsr = xe_phy_readreg(scp, PHY_BMSR); + lpar = xe_phy_readreg(scp, PHY_LPAR); + if (bmsr & (PHY_BMSR_AUTONEGCOMP|PHY_BMSR_LINKSTAT)) { +#ifdef XE_DEBUG + printf("xe%d: Autonegotiation complete!\n", scp->unit); +#endif + /* + * XXX - Shouldn't have to do this, but (on my hub at least) the + * XXX - transmitter won't work after a successful autoneg. So we see + * XXX - what the negotiation result was and force that mode. I'm + * XXX - sure there is an easy fix for this. + */ + if (lpar & PHY_LPAR_100BTXHALF) { + xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); + XE_MII_DUMP(scp); + XE_SELECT_PAGE(2); + XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); + scp->media = IFM_ETHER|IFM_100_TX; + scp->autoneg_status = XE_AUTONEG_NONE; + } + else { + /* + * XXX - Bit of a hack going on in here. + * XXX - This is derived from Ken Hughes patch to the Linux driver + * XXX - to make it work with 10Mbit _autonegotiated_ links on CE3B + * XXX - cards. What's a CE3B and how's it differ from a plain CE3? + * XXX - these are the things we need to find out. + */ + xe_phy_writereg(scp, PHY_BMCR, 0x0000); + XE_SELECT_PAGE(2); + /* BEGIN HACK */ + XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0x80); + scp->media = IFM_ETHER|IFM_10_T; + scp->autoneg_status = XE_AUTONEG_NONE; + /* END HACK */ + /*XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08);*/ /* Disable PHY? */ + /*scp->autoneg_status = XE_AUTONEG_FAIL;*/ + } + } + else { +#ifdef XE_DEBUG + printf("xe%d: Autonegotiation failed; trying 100baseTX\n", scp->unit); +#endif + XE_MII_DUMP(scp); + xe_soft_reset(scp); + if (scp->phy_ok) { + xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); + scp->autoneg_status = XE_AUTONEG_100TX; + scp->chand = timeout(xe_setmedia, scp, hz * 3); + return; + } + else { + scp->autoneg_status = XE_AUTONEG_FAIL; + } + } + break; + + case XE_AUTONEG_100TX: + (void)xe_phy_readreg(scp, PHY_BMSR); + bmsr = xe_phy_readreg(scp, PHY_BMSR); + if (bmsr & PHY_BMSR_LINKSTAT) { +#ifdef XE_DEBUG + printf("xe%d: Got 100baseTX link!\n", scp->unit); +#endif + XE_MII_DUMP(scp); + XE_SELECT_PAGE(2); + XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); + scp->media = IFM_ETHER|IFM_100_TX; + scp->autoneg_status = XE_AUTONEG_NONE; + } + else { +#ifdef XE_DEBUG + printf("xe%d: Autonegotiation failed; disabling PHY\n", scp->unit); +#endif + XE_MII_DUMP(scp); + xe_phy_writereg(scp, PHY_BMCR, 0x0000); + XE_SELECT_PAGE(2); + XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY? */ + scp->autoneg_status = XE_AUTONEG_FAIL; + } + break; + } + + /* + * If we got down here _and_ autoneg_status is XE_AUTONEG_FAIL, then + * either autonegotiation failed, or never got started to begin with. In + * either case, select a suitable 10Mbit media and hope it works. We + * don't need to reset the card again, since it will have been done + * already by the big switch above. + */ + if (scp->autoneg_status == XE_AUTONEG_FAIL) { +#ifdef XE_DEBUG + printf("xe%d: Selecting 10baseX\n", scp->unit); +#endif + if (scp->ce3) { + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0x80); + scp->media = IFM_ETHER|IFM_10_T; + scp->autoneg_status = XE_AUTONEG_NONE; + } + else { + XE_SELECT_PAGE(4); + XE_OUTB(XE_GPR0, 4); + DELAY(50000); + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? 0x80 : 0xc0); + scp->media = IFM_ETHER|((XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? IFM_10_T : IFM_10_2); + scp->autoneg_status = XE_AUTONEG_NONE; + } + } + break; + + + /* + * If a specific media has been requested, we just reset the card and + * select it (one small exception -- if 100baseTX is requested by there is + * no PHY, we fall back to 10baseT operation). + */ + case IFM_100_TX: /* Force 100baseTX */ + xe_soft_reset(scp); + if (scp->phy_ok) { +#ifdef XE_DEBUG + printf("xe%d: Selecting 100baseTX\n", scp->unit); +#endif + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0); + xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); + XE_SELECT_PAGE(2); + XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); + scp->media |= IFM_100_TX; + break; + } + /* FALLTHROUGH */ + + case IFM_10_T: /* Force 10baseT */ + xe_soft_reset(scp); +#ifdef XE_DEBUG + printf("xe%d: Selecting 10baseT\n", scp->unit); +#endif + if (scp->phy_ok) { + xe_phy_writereg(scp, PHY_BMCR, 0x0000); + XE_SELECT_PAGE(2); + XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY */ + } + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0x80); + scp->media |= IFM_10_T; + break; + + case IFM_10_2: + xe_soft_reset(scp); +#ifdef XE_DEBUG + printf("xe%d: Selecting 10base2\n", scp->unit); +#endif + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0xc0); + scp->media |= IFM_10_2; + break; + } + + + /* + * Finally, the LEDs are set to match whatever media was chosen and the + * transmitter is unblocked. + */ +#ifdef XE_DEBUG + printf("xe%d: Setting LEDs\n", scp->unit); +#endif + XE_SELECT_PAGE(2); + switch (IFM_SUBTYPE(scp->media)) { + case IFM_100_TX: + case IFM_10_T: + XE_OUTB(XE_LED, 0x3b); + if (scp->cem56) + XE_OUTB(0x0b, 0x04); /* 100Mbit LED */ + break; + + case IFM_10_2: + XE_OUTB(XE_LED, 0x3a); + break; + } + + /* Restart output? */ + scp->ifp->if_flags &= ~IFF_OACTIVE; + xe_init(scp); +} + + +/* + * Hard reset (power cycle) the card. + */ +static void +xe_hard_reset(struct xe_softc *scp) { + int s; + +#ifdef XE_DEBUG + printf("xe%d: hard_reset\n", scp->unit); +#endif + + if (scp->gone) return; + + s = splimp(); + + /* + * Power cycle the card. + */ + XE_SELECT_PAGE(4); + XE_OUTB(XE_GPR1, 0); /* Power off */ + DELAY(40000); + + if (scp->ce3) + XE_OUTB(XE_GPR1, 1); /* And back on again */ + else + XE_OUTB(XE_GPR1, 5); /* Also set AIC bit, whatever that is */ + DELAY(40000); + XE_SELECT_PAGE(0); + + (void)splx(s); +} + + +/* + * Soft reset the card. Also makes sure that the ML6692 and 10Mbit controller + * are powered up, sets the silicon revision number in softc, disables + * interrupts and checks for the prescence of a 100Mbit PHY. This should + * leave us in a position where we can access the PHY and do media + * selection. The function imposes a 0.5s delay while the hardware powers up. + */ +static void +xe_soft_reset(struct xe_softc *scp) { + int s; + +#ifdef XE_DEBUG + printf("xe%d: soft_reset\n", scp->unit); +#endif + + if (scp->gone) return; + + s = splimp(); + + /* + * Reset the card, (again). + */ + XE_SELECT_PAGE(0); + XE_OUTB(XE_CR, XE_CR_SOFT_RESET); + DELAY(40000); + XE_OUTB(XE_CR, 0); + DELAY(40000); + + if (scp->ce3) { + /* + * set GP1 and GP2 as outputs (bits 2 & 3) + * set GP1 low to power on the ML6692 (bit 0) + * set GP2 high to power on the 10Mhz chip (bit 1) + */ + XE_SELECT_PAGE(4); + XE_OUTB(XE_GPR0, 0x0e); + } + + /* + * Wait for everything to wake up. + */ + DELAY(500000); + + /* + * Get silicon revision number. + */ + XE_SELECT_PAGE(4); + if (scp->ce3) + scp->srev = (XE_INB(XE_BOV) & 0x70) >> 4; + else + scp->srev = (XE_INB(XE_BOV) & 0x30) >> 4; +#ifdef XE_DEBUG + printf("xe%d: silicon revision = %d\n", scp->unit, scp->srev); +#endif + + /* + * Shut off interrupts. + */ + xe_disable_intr(scp); + + /* + * Check for PHY. + */ + if (scp->ce3) { + scp->phy_ok = xe_mii_init(scp); + } + + XE_SELECT_PAGE(0); + + (void)splx(s); +} + + +/* + * Take interface offline. This is done by powering down the device, which I + * assume means just shutting down the transceiver and Ethernet logic. This + * requires a _hard_ reset to recover from, as we need to power up again. + */ +static void +xe_stop(struct xe_softc *scp) { + int s; + +#ifdef XE_DEBUG + printf("xe%d: stop\n", scp->unit); +#endif + + if (scp->gone) return; + + s = splimp(); + + /* + * Shut off interrupts. + */ + xe_disable_intr(scp); + + /* + * Power down. + */ + XE_SELECT_PAGE(4); + XE_OUTB(XE_GPR1, 0); + XE_SELECT_PAGE(0); + + /* + * ~IFF_RUNNING == interface down. + */ + scp->ifp->if_flags &= ~IFF_RUNNING; + scp->ifp->if_flags &= ~IFF_OACTIVE; + scp->ifp->if_timer = 0; + + (void)splx(s); +} + + +/* + * Enable Ethernet interrupts from the card. + */ +static void +xe_enable_intr(struct xe_softc *scp) { +#ifdef XE_DEBUG + printf("xe%d: enable_intr\n", scp->unit); +#endif + + XE_SELECT_PAGE(1); + XE_OUTB(XE_IMR0, 0xff); /* Unmask everything */ + XE_OUTB(XE_IMR1, 0x01); /* Unmask TX underrun detection */ + DELAY(1); + + XE_SELECT_PAGE(0); + XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Enable interrupts */ + if (scp->modem && !scp->cem56) { /* This bit is just magic */ + if (!(XE_INB(0x10) & 0x01)) { + XE_OUTB(0x10, 0x11); /* Unmask master int enable bit */ + } + } +} + + +/* + * Disable all Ethernet interrupts from the card. + */ +static void +xe_disable_intr(struct xe_softc *scp) { +#ifdef XE_DEBUG + printf("xe%d: disable_intr\n", scp->unit); +#endif + + XE_SELECT_PAGE(0); + XE_OUTB(XE_CR, 0); /* Disable interrupts */ + if (scp->modem && !scp->cem56) { /* More magic (does this work?) */ + XE_OUTB(0x10, 0x10); /* Mask the master int enable bit */ + } + + XE_SELECT_PAGE(1); + XE_OUTB(XE_IMR0, 0); /* Forbid all interrupts */ + XE_OUTB(XE_IMR1, 0); + XE_SELECT_PAGE(0); +} + + +/* + * Set up multicast filter and promiscuous mode + */ +static void +xe_setmulti(struct xe_softc *scp) { + struct ifnet *ifp; + struct ifmultiaddr *maddr; + int count; + + ifp = &scp->arpcom.ac_if; + maddr = ifp->if_multiaddrs.lh_first; + + /* Get length of multicast list */ + for (count = 0; maddr != NULL; maddr = maddr->ifma_link.le_next, count++); + + if ((ifp->if_flags & IFF_PROMISC) || (ifp->if_flags & IFF_ALLMULTI) || (count > 9)) { + /* + * Go into promiscuous mode if either of the PROMISC or ALLMULTI flags are + * set, or if we have been asked to deal with more than 9 multicast + * addresses. To do this: set MPE and PME in SWC1 + */ + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0x06); + } + else if ((ifp->if_flags & IFF_MULTICAST) && (count > 0)) { + /* + * Program the filters for up to 9 addresses + */ + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0x01); + XE_SELECT_PAGE(0x40); + XE_OUTB(XE_OCR, XE_OCR_OFFLINE); + /*xe_reg_dump(scp);*/ + xe_setaddrs(scp); + /*xe_reg_dump(scp);*/ + XE_SELECT_PAGE(0x40); + XE_OUTB(XE_OCR, XE_OCR_RX_ENABLE|XE_OCR_ONLINE); + } + else { + /* + * No multicast operation (default) + */ + XE_SELECT_PAGE(0x42); + XE_OUTB(XE_SWC1, 0); + } + XE_SELECT_PAGE(0); +} + + +/* + * Set up all on-chip addresses (for multicast). AFAICS, there are 10 + * of these things; the first is our MAC address, the other 9 are mcast + * addresses, padded with the MAC address if there aren't enough. + * XXX - This doesn't work right, but I'm not sure why yet. We seem to be + * XXX - doing much the same as the Linux code, which is weird enough that + * XXX - it's probably right (despite my earlier comments to the contrary). + * XXX - I wonder if this thing has a multicast hash filter like most other + * XXX - Ethernet hardware seems to? + */ +static void +xe_setaddrs(struct xe_softc *scp) { + struct ifmultiaddr *maddr; + u_int8_t *addr; + u_int8_t page, slot, byte, i; + + maddr = scp->arpcom.ac_if.if_multiaddrs.lh_first; + + XE_SELECT_PAGE(page = 0x50); + + for (slot = 0, byte = 8; slot < 10; slot++) { + + if (slot == 0) + addr = (u_int8_t *)(&scp->arpcom.ac_enaddr); + else { + while (maddr != NULL && maddr->ifma_addr->sa_family != AF_LINK) + maddr = maddr->ifma_link.le_next; + if (maddr != NULL) + addr = LLADDR((struct sockaddr_dl *)maddr->ifma_addr); + else + addr = (u_int8_t *)(&scp->arpcom.ac_enaddr); + } + + for (i = 0; i < 6; i++, byte++) { +#ifdef XE_DEBUG + if (i) + printf(":%x", addr[i]); + else + printf("xe%d: individual addresses %d: %x", scp->unit, slot, addr[0]); +#endif + + if (byte > 15) { + page++; + byte = 8; + XE_SELECT_PAGE(page); + } + + if (scp->ce3) + XE_OUTB(byte, addr[5 - i]); + else + XE_OUTB(byte, addr[i]); + } +#ifdef XE_DEBUG + printf("\n"); +#endif + } + + XE_SELECT_PAGE(0); +} + + +/* + * Write an outgoing packet to the card using programmed I/O. + */ +static int +xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp) { + struct mbuf *mbp2; + u_int16_t len, pad, free, ok; + u_int8_t *data; + u_int8_t savebyte[2], wantbyte; + + /* Get total packet length */ + for (len = 0, mbp2 = mbp; mbp2 != NULL; len += mbp2->m_len, mbp2 = mbp2->m_next); + + /* Packets < minimum length may need to be padded out */ + pad = 0; + if (len < ETHER_MIN_LEN - ETHER_CRC_LEN) { + pad = (ETHER_MIN_LEN - ETHER_CRC_LEN - len + 1) >> 1; + len = ETHER_MIN_LEN - ETHER_CRC_LEN; + } + + /* Check transmit buffer space */ + XE_SELECT_PAGE(0); + XE_OUTW(XE_TRS, len+2); + free = XE_INW(XE_TSO); + ok = free & 0x8000; + free &= 0x7fff; + if (free <= len + 2) + return 1; + + /* Send packet length to card */ + XE_OUTW(XE_EDP, len); + + /* + * Write packet to card using PIO (code stolen from the ed driver) + */ + wantbyte = 0; + while (mbp != NULL) { + len = mbp->m_len; + if (len > 0) { + data = mtod(mbp, caddr_t); + if (wantbyte) { /* Finish the last word */ + savebyte[1] = *data; + XE_OUTW(XE_EDP, *(u_short *)savebyte); + data++; + len--; + wantbyte = 0; + } + if (len > 1) { /* Output contiguous words */ + outsw(scp->dev->id_iobase+XE_EDP, data, len >> 1); + data += len & ~1; + len &= 1; + } + if (len == 1) { /* Save last byte, if necessary */ + savebyte[0] = *data; + wantbyte = 1; + } + } + mbp = mbp->m_next; + } + if (wantbyte) /* Last byte for odd-length packets */ + XE_OUTW(XE_EDP, *(u_short *)savebyte); + + /* + * For CE3 cards, just tell 'em to send -- apparently the card will pad out + * short packets with random cruft. Otherwise, write nonsense words to fill + * out the packet. I guess it is then sent automatically (?) + */ + if (scp->ce3) + XE_OUTB(XE_CR, XE_CR_TX_PACKET|XE_CR_ENABLE_INTR); + else + while (pad > 0) { + XE_OUTW(XE_EDP, 0xdead); + pad--; + } + + return 0; +} + + +/* + * The device entry is being removed, probably because someone ejected the + * card. The interface should have been brought down manually before calling + * this function; if not you may well lose packets. In any case, I shut down + * the card and the interface, and hope for the best. The 'gone' flag is set, + * so hopefully no-one else will try to access the missing card. + */ +static void +xe_card_unload(struct pccard_devinfo *devi) { + struct xe_softc *scp; + struct ifnet *ifp; + int unit; + + unit = devi->isahd.id_unit; + scp = sca[unit]; + ifp = &scp->arpcom.ac_if; + + if (scp->gone) { + printf("xe%d: already unloaded\n", unit); + return; + } + + if_down(ifp); + ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); + xe_stop(scp); + scp->gone = 1; +} + + + +/************************************************************** + * * + * M I I F U N C T I O N S * + * * + **************************************************************/ + +/* + * Alternative MII/PHY handling code adapted from the xl driver. It doesn't + * seem to work any better than the xirc2_ps stuff, but it's cleaner code. + */ +#define XE_MII_SET(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) | (x)) +#define XE_MII_CLR(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) & ~(x)) + + +/* + * Sync the PHYs by setting data bit and strobing the clock 32 times. + */ +static void +xe_mii_sync(struct xe_softc *scp) { + register int i; + + XE_SELECT_PAGE(2); + XE_MII_SET(XE_MII_DIR|XE_MII_WRD); + + for (i = 0; i < 32; i++) { + XE_MII_SET(XE_MII_CLK); + DELAY(1); + XE_MII_CLR(XE_MII_CLK); + DELAY(1); + } +} + + +/* + * Look for a MII-compliant PHY. If we find one, reset it. + */ +static int +xe_mii_init(struct xe_softc *scp) { + u_int16_t status; + + status = xe_phy_readreg(scp, PHY_BMSR); + if ((status & 0xff00) != 0x7800) { +#ifdef XE_DEBUG + printf("xe%d: no PHY found, %0x\n", scp->unit, status); +#endif + return 0; + } + else { +#ifdef XE_DEBUG + printf("xe%d: PHY OK!\n", scp->unit); +#endif + + /* Reset the PHY */ + xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_RESET); + DELAY(500); + while(xe_phy_readreg(scp, PHY_BMCR) & PHY_BMCR_RESET); + XE_MII_DUMP(scp); + return 1; + } +} + + +/* + * Clock a series of bits through the MII. + */ +static void +xe_mii_send(struct xe_softc *scp, u_int32_t bits, int cnt) { + int i; + + XE_SELECT_PAGE(2); + XE_MII_CLR(XE_MII_CLK); + + for (i = (0x1 << (cnt - 1)); i; i >>= 1) { + if (bits & i) { + XE_MII_SET(XE_MII_WRD); + } else { + XE_MII_CLR(XE_MII_WRD); + } + DELAY(1); + XE_MII_CLR(XE_MII_CLK); + DELAY(1); + XE_MII_SET(XE_MII_CLK); + } +} + + +/* + * Read an PHY register through the MII. + */ +static int +xe_mii_readreg(struct xe_softc *scp, struct xe_mii_frame *frame) { + int i, ack, s; + + s = splimp(); + + /* + * Set up frame for RX. + */ + frame->mii_stdelim = XE_MII_STARTDELIM; + frame->mii_opcode = XE_MII_READOP; + frame->mii_turnaround = 0; + frame->mii_data = 0; + + XE_SELECT_PAGE(2); + XE_OUTB(XE_GPR2, 0); + + /* + * Turn on data xmit. + */ + XE_MII_SET(XE_MII_DIR); + + xe_mii_sync(scp); + + /* + * Send command/address info. + */ + xe_mii_send(scp, frame->mii_stdelim, 2); + xe_mii_send(scp, frame->mii_opcode, 2); + xe_mii_send(scp, frame->mii_phyaddr, 5); + xe_mii_send(scp, frame->mii_regaddr, 5); + + /* Idle bit */ + XE_MII_CLR((XE_MII_CLK|XE_MII_WRD)); + DELAY(1); + XE_MII_SET(XE_MII_CLK); + DELAY(1); + + /* Turn off xmit. */ + XE_MII_CLR(XE_MII_DIR); + + /* Check for ack */ + XE_MII_CLR(XE_MII_CLK); + DELAY(1); + XE_MII_SET(XE_MII_CLK); + DELAY(1); + ack = XE_INB(XE_GPR2) & XE_MII_RDD; + + /* + * Now try reading data bits. If the ack failed, we still + * need to clock through 16 cycles to keep the PHY(s) in sync. + */ + if (ack) { + for(i = 0; i < 16; i++) { + XE_MII_CLR(XE_MII_CLK); + DELAY(1); + XE_MII_SET(XE_MII_CLK); + DELAY(1); + } + goto fail; + } + + for (i = 0x8000; i; i >>= 1) { + XE_MII_CLR(XE_MII_CLK); + DELAY(1); + if (!ack) { + if (XE_INB(XE_GPR2) & XE_MII_RDD) + frame->mii_data |= i; + DELAY(1); + } + XE_MII_SET(XE_MII_CLK); + DELAY(1); + } + +fail: + + XE_MII_CLR(XE_MII_CLK); + DELAY(1); + XE_MII_SET(XE_MII_CLK); + DELAY(1); + + splx(s); + + if (ack) + return(1); + return(0); +} + + +/* + * Write to a PHY register through the MII. + */ +static int +xe_mii_writereg(struct xe_softc *scp, struct xe_mii_frame *frame) { + int s; + + s = splimp(); + + /* + * Set up frame for TX. + */ + frame->mii_stdelim = XE_MII_STARTDELIM; + frame->mii_opcode = XE_MII_WRITEOP; + frame->mii_turnaround = XE_MII_TURNAROUND; + + XE_SELECT_PAGE(2); + + /* + * Turn on data output. + */ + XE_MII_SET(XE_MII_DIR); + + xe_mii_sync(scp); + + xe_mii_send(scp, frame->mii_stdelim, 2); + xe_mii_send(scp, frame->mii_opcode, 2); + xe_mii_send(scp, frame->mii_phyaddr, 5); + xe_mii_send(scp, frame->mii_regaddr, 5); + xe_mii_send(scp, frame->mii_turnaround, 2); + xe_mii_send(scp, frame->mii_data, 16); + + /* Idle bit. */ + XE_MII_SET(XE_MII_CLK); + DELAY(1); + XE_MII_CLR(XE_MII_CLK); + DELAY(1); + + /* + * Turn off xmit. + */ + XE_MII_CLR(XE_MII_DIR); + + splx(s); + + return(0); +} + + +/* + * Read a register from the PHY. + */ +static u_int16_t +xe_phy_readreg(struct xe_softc *scp, u_int16_t reg) { + struct xe_mii_frame frame; + + bzero((char *)&frame, sizeof(frame)); + + frame.mii_phyaddr = 0; + frame.mii_regaddr = reg; + xe_mii_readreg(scp, &frame); + + return(frame.mii_data); +} + + +/* + * Write to a PHY register. + */ +static void +xe_phy_writereg(struct xe_softc *scp, u_int16_t reg, u_int16_t data) { + struct xe_mii_frame frame; + + bzero((char *)&frame, sizeof(frame)); + + frame.mii_phyaddr = 0; + frame.mii_regaddr = reg; + frame.mii_data = data; + xe_mii_writereg(scp, &frame); + + return; +} + + +#ifdef XE_DEBUG +/* + * A bit of debugging code. + */ +static void +xe_mii_dump(struct xe_softc *scp) { + int i, s; + + s = splimp(); + + printf("xe%d: MII registers: ", scp->unit); + for (i = 0; i < 2; i++) { + printf(" %d:%04x", i, xe_phy_readreg(scp, i)); + } + for (i = 4; i < 7; i++) { + printf(" %d:%04x", i, xe_phy_readreg(scp, i)); + } + printf("\n"); + + (void)splx(s); +} + +static void +xe_reg_dump(struct xe_softc *scp) { + int page, i, s; + + s = splimp(); + + printf("xe%d: Common registers: ", scp->unit); + for (i = 0; i < 8; i++) { + printf(" %2.2x", XE_INB(i)); + } + printf("\n"); + + for (page = 0; page <= 8; page++) { + printf("xe%d: Register page %2.2x: ", scp->unit, page); + XE_SELECT_PAGE(page); + for (i = 8; i < 16; i++) { + printf(" %2.2x", XE_INB(i)); + } + printf("\n"); + } + + for (page = 0x10; page < 0x5f; page++) { + if ((page >= 0x11 && page <= 0x3f) || + (page == 0x41) || + (page >= 0x43 && page <= 0x4f) || + (page >= 0x59)) + continue; + printf("xe%d: Register page %2.2x: ", scp->unit, page); + XE_SELECT_PAGE(page); + for (i = 8; i < 16; i++) { + printf(" %2.2x", XE_INB(i)); + } + printf("\n"); + } + + (void)splx(s); +} +#endif + + + +#if NAPM > 0 +/************************************************************** + * * + * A P M F U N C T I O N S * + * * + **************************************************************/ + +/* + * This is called when we go into suspend/standby mode + */ +static int +xe_suspend(void *xunit) { + struct xe_softc *scp = sca[(int)xunit]; + +#ifdef XE_DEBUG + printf("xe%d: APM suspend\n", scp->unit); +#endif + return 0; +} + +/* + * This is called when we wake up again + */ +static int +xe_resume(void *xunit) { + struct xe_softc *scp = sca[(int)xunit]; + +#ifdef XE_DEBUG + printf("xe%d: APM resume\n", scp->unit); +#endif + return 0; +} + +#endif /* NAPM > 0 */ + +#endif /* NCARD > 0 */ + +#endif /* NXE > 0 */ diff --git a/sys/dev/xe/if_xereg.h b/sys/dev/xe/if_xereg.h new file mode 100644 index 0000000..07cb0b1 --- /dev/null +++ b/sys/dev/xe/if_xereg.h @@ -0,0 +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 1.3 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 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. + */ + + + +/* + * 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 + +/* + * 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 + +#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 */ |
