2 * Copyright (c) 1998, 1999, 2003 Scott Mitchell
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * Portions of this software were derived from Werner Koch's xirc2ps driver
28 * for Linux under the terms of the following license (from v1.30 of the
31 * Copyright (c) 1997 by Werner Koch (dd9jn)
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, and the entire permission notice in its entirety,
38 * including the disclaimer of warranties.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. The name of the author may not be used to endorse or promote
43 * products derived from this software without specific prior
46 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
47 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
49 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
50 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
51 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
52 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
54 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
55 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
56 * OF THE POSSIBILITY OF SUCH DAMAGE.
59 #include <sys/cdefs.h>
60 __FBSDID("$FreeBSD$");
63 * FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The
64 * following cards are currently known to work with the driver:
65 * Xircom CreditCard 10/100 (CE3)
66 * Xircom CreditCard Ethernet + Modem 28 (CEM28)
67 * Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56)
68 * Xircom RealPort Ethernet 10
69 * Xircom RealPort Ethernet 10/100
70 * Xircom RealPort Ethernet 10/100 + Modem 56 (REM56, REM56G)
71 * Intel EtherExpress Pro/100 PC Card Mobile Adapter 16 (Pro/100 M16A)
72 * Compaq Netelligent 10/100 PC Card (CPQ-10/100)
74 * Some other cards *should* work, but support for them is either broken or in
75 * an unknown state at the moment. I'm always interested in hearing from
76 * people who own any of these cards:
77 * Xircom CreditCard 10Base-T (PS-CE2-10)
78 * Xircom CreditCard Ethernet + ModemII (CEM2)
79 * Xircom CEM28 and CEM33 Ethernet/Modem cards (may be variants of CEM2?)
81 * Thanks to all who assisted with the development and testing of the driver,
82 * especially: Werner Koch, Duke Kamstra, Duncan Barclay, Jason George, Dru
83 * Nelson, Mike Kephart, Bill Rainey and Douglas Rand. Apologies if I've left
84 * out anyone who deserves a mention here.
86 * Special thanks to Ade Lovett for both hosting the mailing list and doing
87 * the CEM56/REM56 support code; and the FreeBSD UK Users' Group for hosting
90 * Author email: <scott@uk.freebsd.org>
91 * Driver web page: http://ukug.uk.freebsd.org/~scott/xe_drv/
95 #include <sys/param.h>
96 #include <sys/cdefs.h>
97 #include <sys/errno.h>
98 #include <sys/kernel.h>
99 #include <sys/malloc.h>
100 #include <sys/mbuf.h>
101 #include <sys/socket.h>
102 #include <sys/sockio.h>
103 #include <sys/systm.h>
105 #include <sys/sysctl.h>
107 #include <sys/module.h>
110 #include <machine/bus.h>
111 #include <machine/resource.h>
112 #include <sys/rman.h>
114 #include <net/ethernet.h>
116 #include <net/if_var.h>
117 #include <net/if_arp.h>
118 #include <net/if_dl.h>
119 #include <net/if_media.h>
120 #include <net/if_mib.h>
122 #include <net/if_types.h>
124 #include <dev/xe/if_xereg.h>
125 #include <dev/xe/if_xevar.h>
128 * MII command structure
130 struct xe_mii_frame {
135 uint8_t mii_turnaround;
140 * Media autonegotiation progress constants
142 #define XE_AUTONEG_NONE 0 /* No autonegotiation in progress */
143 #define XE_AUTONEG_WAITING 1 /* Waiting for transmitter to go idle */
144 #define XE_AUTONEG_STARTED 2 /* Waiting for autonegotiation to complete */
145 #define XE_AUTONEG_100TX 3 /* Trying to force 100baseTX link */
146 #define XE_AUTONEG_FAIL 4 /* Autonegotiation failed */
149 * Prototypes start here
151 static void xe_init(void *xscp);
152 static void xe_init_locked(struct xe_softc *scp);
153 static void xe_start(struct ifnet *ifp);
154 static void xe_start_locked(struct ifnet *ifp);
155 static int xe_ioctl(struct ifnet *ifp, u_long command, caddr_t data);
156 static void xe_watchdog(void *arg);
157 static void xe_intr(void *xscp);
158 static void xe_txintr(struct xe_softc *scp, uint8_t txst1);
159 static void xe_macintr(struct xe_softc *scp, uint8_t rst0, uint8_t txst0,
161 static void xe_rxintr(struct xe_softc *scp, uint8_t rst0);
162 static int xe_media_change(struct ifnet *ifp);
163 static void xe_media_status(struct ifnet *ifp, struct ifmediareq *mrp);
164 static void xe_setmedia(void *arg);
165 static void xe_reset(struct xe_softc *scp);
166 static void xe_enable_intr(struct xe_softc *scp);
167 static void xe_disable_intr(struct xe_softc *scp);
168 static void xe_set_multicast(struct xe_softc *scp);
169 static void xe_set_addr(struct xe_softc *scp, uint8_t* addr, unsigned idx);
170 static void xe_mchash(struct xe_softc *scp, const uint8_t *addr);
171 static int xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp);
176 static void xe_mii_sync(struct xe_softc *scp);
177 static int xe_mii_init(struct xe_softc *scp);
178 static void xe_mii_send(struct xe_softc *scp, uint32_t bits, int cnt);
179 static int xe_mii_readreg(struct xe_softc *scp,
180 struct xe_mii_frame *frame);
181 static int xe_mii_writereg(struct xe_softc *scp,
182 struct xe_mii_frame *frame);
183 static uint16_t xe_phy_readreg(struct xe_softc *scp, uint16_t reg);
184 static void xe_phy_writereg(struct xe_softc *scp, uint16_t reg,
188 * Debugging functions
190 static void xe_mii_dump(struct xe_softc *scp);
192 static void xe_reg_dump(struct xe_softc *scp);
196 * Debug logging levels - set with hw.xe.debug sysctl
198 * 1 = More hardware details, probe/attach progress
199 * 2 = Most function calls, ioctls and media selection progress
200 * 3 = Everything - interrupts, packets in/out and multicast address setup
206 static SYSCTL_NODE(_hw, OID_AUTO, xe, CTLFLAG_RD, 0, "if_xe parameters");
209 SYSCTL_INT(_hw_xe, OID_AUTO, debug, CTLFLAG_RW, &xe_debug, 0,
210 "if_xe debug level");
212 #define DEVPRINTF(level, arg) if (xe_debug >= (level)) device_printf arg
213 #define DPRINTF(level, arg) if (xe_debug >= (level)) printf arg
214 #define XE_MII_DUMP(scp) if (xe_debug >= 3) xe_mii_dump(scp)
216 #define XE_REG_DUMP(scp) if (xe_debug >= 3) xe_reg_dump(scp)
219 #define DEVPRINTF(level, arg)
220 #define DPRINTF(level, arg)
221 #define XE_MII_DUMP(scp)
223 #define XE_REG_DUMP(scp)
231 xe_attach(device_t dev)
233 struct xe_softc *scp = device_get_softc(dev);
236 DEVPRINTF(2, (dev, "attach\n"));
238 /* Initialise stuff... */
240 scp->ifp = if_alloc(IFT_ETHER);
241 if (scp->ifp == NULL)
243 scp->ifm = &scp->ifmedia;
244 scp->autoneg_status = XE_AUTONEG_NONE;
245 mtx_init(&scp->lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
247 callout_init_mtx(&scp->wdog_timer, &scp->lock, 0);
249 /* Initialise the ifnet structure */
250 scp->ifp->if_softc = scp;
251 if_initname(scp->ifp, device_get_name(dev), device_get_unit(dev));
252 scp->ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
253 scp->ifp->if_linkmib = &scp->mibdata;
254 scp->ifp->if_linkmiblen = sizeof(scp->mibdata);
255 scp->ifp->if_start = xe_start;
256 scp->ifp->if_ioctl = xe_ioctl;
257 scp->ifp->if_init = xe_init;
258 scp->ifp->if_baudrate = 100000000;
259 IFQ_SET_MAXLEN(&scp->ifp->if_snd, ifqmaxlen);
261 /* Initialise the ifmedia structure */
262 ifmedia_init(scp->ifm, 0, xe_media_change, xe_media_status);
263 callout_init_mtx(&scp->media_timer, &scp->lock, 0);
265 /* Add supported media types */
267 ifmedia_add(scp->ifm, IFM_ETHER|IFM_100_TX, 0, NULL);
268 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
269 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
271 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL);
273 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_2, 0, NULL);
274 ifmedia_add(scp->ifm, IFM_ETHER|IFM_AUTO, 0, NULL);
276 /* Default is to autoselect best supported media type */
277 ifmedia_set(scp->ifm, IFM_ETHER|IFM_AUTO);
279 /* Get the hardware into a known state */
284 /* Get hardware version numbers */
286 scp->version = XE_INB(XE_BOV);
288 scp->srev = (XE_INB(XE_BOV) & 0x70) >> 4;
290 scp->srev = (XE_INB(XE_BOV) & 0x30) >> 4;
292 /* Print some useful information */
293 device_printf(dev, "version 0x%02x/0x%02x%s%s\n", scp->version,
294 scp->srev, scp->mohawk ? ", 100Mbps capable" : "",
295 scp->modem ? ", with modem" : "");
297 XE_SELECT_PAGE(0x10);
299 "DingoID=0x%04x, RevisionID=0x%04x, VendorID=0x%04x\n",
300 XE_INW(XE_DINGOID), XE_INW(XE_RevID), XE_INW(XE_VendorID)));
303 XE_SELECT_PAGE(0x45);
304 DEVPRINTF(1, (dev, "CE2 version = 0x%02x\n", XE_INB(XE_REV)));
307 /* Attach the interface */
308 ether_ifattach(scp->ifp, scp->enaddr);
310 err = bus_setup_intr(dev, scp->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
311 NULL, xe_intr, scp, &scp->intrhand);
313 ether_ifdetach(scp->ifp);
314 mtx_destroy(&scp->lock);
323 * Complete hardware intitialisation and enable output. Exits without doing
324 * anything if there's no address assigned to the card, or if media selection
325 * is in progress (the latter implies we've already run this function).
330 struct xe_softc *scp = xscp;
338 xe_init_locked(struct xe_softc *scp)
342 if (scp->autoneg_status != XE_AUTONEG_NONE)
345 DEVPRINTF(2, (scp->dev, "init\n"));
347 /* Reset transmitter flags */
350 scp->tx_timeouts = 0;
352 scp->tx_min = ETHER_MIN_LEN - ETHER_CRC_LEN;
355 /* Soft reset the card */
357 XE_OUTB(XE_CR, XE_CR_SOFT_RESET);
364 * set GP1 and GP2 as outputs (bits 2 & 3)
365 * set GP1 low to power on the ML6692 (bit 0)
366 * set GP2 high to power on the 10Mhz chip (bit 1)
369 XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT | XE_GPR0_GP1_SELECT |
373 /* Shut off interrupts */
374 xe_disable_intr(scp);
376 /* Wait for everything to wake up */
381 scp->phy_ok = xe_mii_init(scp);
383 /* Disable 'source insertion' (not sure what that means) */
384 XE_SELECT_PAGE(0x42);
385 XE_OUTB(XE_SWC0, XE_SWC0_NO_SRC_INSERT);
387 /* Set 8K/24K Tx/Rx buffer split */
388 if (scp->srev != 1) {
390 XE_OUTW(XE_RBS, 0x2000);
393 /* Enable early transmit mode on Mohawk/Dingo */
395 XE_SELECT_PAGE(0x03);
396 XE_OUTW(XE_TPT, scp->tx_thres);
397 XE_SELECT_PAGE(0x01);
398 XE_OUTB(XE_ECR, XE_INB(XE_ECR) | XE_ECR_EARLY_TX);
401 /* Put MAC address in first 'individual address' register */
402 XE_SELECT_PAGE(0x50);
403 for (i = 0; i < ETHER_ADDR_LEN; i++)
404 XE_OUTB(0x08 + i, IF_LLADDR(scp->ifp)[scp->mohawk ? 5 - i : i]);
406 /* Set up multicast addresses */
407 xe_set_multicast(scp);
409 /* Fix the receive data offset -- reset can leave it off-by-one */
411 XE_OUTW(XE_DO, 0x2000);
413 /* Set interrupt masks */
415 XE_OUTB(XE_IMR0, XE_IMR0_TX_PACKET | XE_IMR0_MAC_INTR |
418 /* Set MAC interrupt masks */
419 XE_SELECT_PAGE(0x40);
421 ~(XE_RX0M_RX_OVERRUN | XE_RX0M_CRC_ERROR | XE_RX0M_ALIGN_ERROR |
422 XE_RX0M_LONG_PACKET));
424 ~(XE_TX0M_SQE_FAIL | XE_TX0M_LATE_COLLISION | XE_TX0M_TX_UNDERRUN |
425 XE_TX0M_16_COLLISIONS | XE_TX0M_NO_CARRIER));
427 /* Clear MAC status registers */
428 XE_SELECT_PAGE(0x40);
429 XE_OUTB(XE_RST0, 0x00);
430 XE_OUTB(XE_TXST0, 0x00);
432 /* Enable receiver and put MAC online */
433 XE_SELECT_PAGE(0x40);
434 XE_OUTB(XE_CMD0, XE_CMD0_RX_ENABLE|XE_CMD0_ONLINE);
436 /* Set up IMR, enable interrupts */
439 /* Start media selection */
443 scp->ifp->if_drv_flags |= IFF_DRV_RUNNING;
444 scp->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
445 callout_reset(&scp->wdog_timer, hz, xe_watchdog, scp);
449 * Start output on interface. Should be called at splimp() priority. Check
450 * that the output is idle (ie, IFF_DRV_OACTIVE is not set) before calling this
451 * function. If media selection is in progress we set IFF_DRV_OACTIVE ourselves
452 * and return immediately.
455 xe_start(struct ifnet *ifp)
457 struct xe_softc *scp = ifp->if_softc;
460 xe_start_locked(ifp);
465 xe_start_locked(struct ifnet *ifp)
467 struct xe_softc *scp = ifp->if_softc;
470 if (scp->autoneg_status != XE_AUTONEG_NONE) {
471 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
475 DEVPRINTF(3, (scp->dev, "start\n"));
478 * Loop while there are packets to be sent, and space to send
482 /* Suck a packet off the send queue */
483 IF_DEQUEUE(&ifp->if_snd, mbp);
487 * We are using the !OACTIVE flag to indicate
488 * to the outside world that we can accept an
489 * additional packet rather than that the
490 * transmitter is _actually_ active. Indeed,
491 * the transmitter may be active, but if we
492 * haven't filled all the buffers with data
493 * then we still want to accept more.
495 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
499 if (xe_pio_write_packet(scp, mbp) != 0) {
500 /* Push the packet back onto the queue */
501 IF_PREPEND(&ifp->if_snd, mbp);
502 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
506 /* Tap off here if there is a bpf listener */
509 /* In case we don't hear from the card again... */
518 * Process an ioctl request. Adapted from the ed driver.
521 xe_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
523 struct xe_softc *scp;
531 DEVPRINTF(2, (scp->dev, "ioctl: SIOCSIFFLAGS: 0x%04x\n",
534 * If the interface is marked up and stopped, then
535 * start it. If it is marked down and running, then
539 if (ifp->if_flags & IFF_UP) {
540 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
545 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
549 /* handle changes to PROMISC/ALLMULTI flags */
550 xe_set_multicast(scp);
556 DEVPRINTF(2, (scp->dev, "ioctl: SIOC{ADD,DEL}MULTI\n"));
558 * Multicast list has (maybe) changed; set the
559 * hardware filters accordingly.
562 xe_set_multicast(scp);
568 DEVPRINTF(3, (scp->dev, "ioctl: bounce to ifmedia_ioctl\n"));
570 * Someone wants to get/set media options.
572 error = ifmedia_ioctl(ifp, (struct ifreq *)data, &scp->ifmedia,
576 DEVPRINTF(3, (scp->dev, "ioctl: bounce to ether_ioctl\n"));
577 error = ether_ioctl(ifp, command, data);
584 * Card interrupt handler.
586 * This function is probably more complicated than it needs to be, as it
587 * attempts to deal with the case where multiple packets get sent between
588 * interrupts. This is especially annoying when working out the collision
589 * stats. Not sure whether this case ever really happens or not (maybe on a
590 * slow/heavily loaded machine?) so it's probably best to leave this like it
593 * Note that the crappy PIO used to get packets on and off the card means that
594 * you will spend a lot of time in this routine -- I can get my P150 to spend
595 * 90% of its time servicing interrupts if I really hammer the network. Could
596 * fix this, but then you'd start dropping/losing packets. The moral of this
597 * story? If you want good network performance _and_ some cycles left over to
598 * get your work done, don't buy a Xircom card. Or convince them to tell me
599 * how to do memory-mapped I/O :)
602 xe_txintr(struct xe_softc *scp, uint8_t txst1)
605 uint8_t tpr, sent, coll;
609 /* Update packet count, accounting for rollover */
610 tpr = XE_INB(XE_TPR);
611 sent = -scp->tx_tpr + tpr;
613 /* Update statistics if we actually sent anything */
615 coll = txst1 & XE_TXST1_RETRY_COUNT;
617 scp->tx_queued -= sent;
618 if_inc_counter(ifp, IFCOUNTER_OPACKETS, sent);
619 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, coll);
622 * According to the Xircom manual, Dingo will
623 * sometimes manage to transmit a packet with
624 * triggering an interrupt. If this happens, we have
625 * sent > 1 and the collision count only reflects
626 * collisions on the last packet sent (the one that
627 * triggered the interrupt). Collision stats might
628 * therefore be a bit low, but there doesn't seem to
629 * be anything we can do about that.
635 scp->mibdata.dot3StatsSingleCollisionFrames++;
636 scp->mibdata.dot3StatsCollFrequencies[0]++;
639 scp->mibdata.dot3StatsMultipleCollisionFrames++;
640 scp->mibdata.dot3StatsCollFrequencies[coll-1]++;
644 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
647 /* Handle most MAC interrupts */
649 xe_macintr(struct xe_softc *scp, uint8_t rst0, uint8_t txst0, uint8_t txst1)
656 /* Carrier sense lost -- only in 10Mbit HDX mode */
657 if (txst0 & XE_TXST0_NO_CARRIER || !(txst1 & XE_TXST1_LINK_STATUS)) {
658 /* XXX - Need to update media status here */
659 device_printf(scp->dev, "no carrier\n");
660 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
661 scp->mibdata.dot3StatsCarrierSenseErrors++;
664 /* Excessive collisions -- try sending again */
665 if (txst0 & XE_TXST0_16_COLLISIONS) {
666 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 16);
667 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
668 scp->mibdata.dot3StatsExcessiveCollisions++;
669 scp->mibdata.dot3StatsMultipleCollisionFrames++;
670 scp->mibdata.dot3StatsCollFrequencies[15]++;
671 XE_OUTB(XE_CR, XE_CR_RESTART_TX);
674 /* Transmit underrun -- increase early transmit threshold */
675 if (txst0 & XE_TXST0_TX_UNDERRUN && scp->mohawk) {
676 DEVPRINTF(1, (scp->dev, "transmit underrun"));
677 if (scp->tx_thres < ETHER_MAX_LEN) {
678 if ((scp->tx_thres += 64) > ETHER_MAX_LEN)
679 scp->tx_thres = ETHER_MAX_LEN;
680 DPRINTF(1, (": increasing transmit threshold to %u",
683 XE_OUTW(XE_TPT, scp->tx_thres);
687 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
688 scp->mibdata.dot3StatsInternalMacTransmitErrors++;
691 /* Late collision -- just complain about it */
692 if (txst0 & XE_TXST0_LATE_COLLISION) {
693 device_printf(scp->dev, "late collision\n");
694 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
695 scp->mibdata.dot3StatsLateCollisions++;
698 /* SQE test failure -- just complain about it */
699 if (txst0 & XE_TXST0_SQE_FAIL) {
700 device_printf(scp->dev, "SQE test failure\n");
701 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
702 scp->mibdata.dot3StatsSQETestErrors++;
705 /* Packet too long -- what happens to these */
706 if (rst0 & XE_RST0_LONG_PACKET) {
707 device_printf(scp->dev, "received giant packet\n");
708 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
709 scp->mibdata.dot3StatsFrameTooLongs++;
712 /* CRC error -- packet dropped */
713 if (rst0 & XE_RST0_CRC_ERROR) {
714 device_printf(scp->dev, "CRC error\n");
715 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
716 scp->mibdata.dot3StatsFCSErrors++;
721 xe_rxintr(struct xe_softc *scp, uint8_t rst0)
728 /* Handle received packet(s) */
729 while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PACKET_RX) {
730 rsr = XE_INB(XE_RSR);
732 DEVPRINTF(3, (scp->dev, "intr: ESR=0x%02x, RSR=0x%02x\n", esr,
735 /* Make sure packet is a good one */
736 if (rsr & XE_RSR_RX_OK) {
737 struct ether_header *ehp;
741 len = XE_INW(XE_RBC) - ETHER_CRC_LEN;
743 DEVPRINTF(3, (scp->dev, "intr: receive length = %d\n",
747 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
752 * Allocate mbuf to hold received packet. If
753 * the mbuf header isn't big enough, we attach
754 * an mbuf cluster to hold the packet. Note
755 * the +=2 to align the packet data on a
756 * 32-bit boundary, and the +3 to allow for
757 * the possibility of reading one more byte
758 * than the actual packet length (we always
759 * read 16-bit words). XXX - Surely there's a
760 * better way to do this alignment?
762 MGETHDR(mbp, M_NOWAIT, MT_DATA);
764 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
768 if (len + 3 > MHLEN) {
769 if (!(MCLGET(mbp, M_NOWAIT))) {
771 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
777 ehp = mtod(mbp, struct ether_header *);
780 * Now get the packet in PIO mode, including
781 * the Ethernet header but omitting the
786 * Work around a bug in CE2 cards. There
787 * seems to be a problem with duplicated and
788 * extraneous bytes in the receive buffer, but
789 * without any real documentation for the CE2
790 * it's hard to tell for sure. XXX - Needs
791 * testing on CE2 hardware
793 if (scp->srev == 0) {
797 rhs = XE_INW(XE_RHSA);
800 rhs += 3; /* Skip control info */
805 if (rhs + len > 0x8000) {
808 for (i = 0; i < len; i++, rhs++) {
817 bus_read_multi_2(scp->port_res, XE_EDP,
818 (uint16_t *)ehp, (len + 1) >> 1);
820 bus_read_multi_2(scp->port_res, XE_EDP,
821 (uint16_t *)ehp, (len + 1) >> 1);
823 /* Deliver packet to upper layers */
824 mbp->m_pkthdr.rcvif = ifp;
825 mbp->m_pkthdr.len = mbp->m_len = len;
827 (*ifp->if_input)(ifp, mbp);
829 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
831 } else if (rsr & XE_RSR_ALIGN_ERROR) {
832 /* Packet alignment error -- drop packet */
833 device_printf(scp->dev, "alignment error\n");
834 scp->mibdata.dot3StatsAlignmentErrors++;
835 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
838 /* Skip to next packet, if there is one */
839 XE_OUTW(XE_DO, 0x8000);
842 /* Clear receiver overruns now we have some free buffer space */
843 if (rst0 & XE_RST0_RX_OVERRUN) {
844 DEVPRINTF(1, (scp->dev, "receive overrun\n"));
845 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
846 scp->mibdata.dot3StatsInternalMacReceiveErrors++;
847 XE_OUTB(XE_CR, XE_CR_CLEAR_OVERRUN);
854 struct xe_softc *scp = (struct xe_softc *) xscp;
856 uint8_t psr, isr, rst0, txst0, txst1;
861 /* Disable interrupts */
865 /* Cache current register page */
868 /* Read ISR to see what caused this interrupt */
869 while ((isr = XE_INB(XE_ISR)) != 0) {
871 /* 0xff might mean the card is no longer around */
873 DEVPRINTF(3, (scp->dev,
874 "intr: interrupt received for missing card?\n"));
878 /* Read other status registers */
879 XE_SELECT_PAGE(0x40);
880 rst0 = XE_INB(XE_RST0);
882 txst0 = XE_INB(XE_TXST0);
883 txst1 = XE_INB(XE_TXST1);
884 XE_OUTB(XE_TXST0, 0);
885 XE_OUTB(XE_TXST1, 0);
888 DEVPRINTF(3, (scp->dev,
889 "intr: ISR=0x%02x, RST=0x%02x, TXT=0x%02x%02x\n", isr,
890 rst0, txst1, txst0));
892 if (isr & XE_ISR_TX_PACKET)
893 xe_txintr(scp, txst1);
895 if (isr & XE_ISR_MAC_INTR)
896 xe_macintr(scp, rst0, txst0, txst1);
898 xe_rxintr(scp, rst0);
901 /* Restore saved page */
904 /* Re-enable interrupts */
905 XE_OUTB(XE_CR, XE_CR_ENABLE_INTR);
911 * Device timeout/watchdog routine. Called automatically if we queue a packet
912 * for transmission but don't get an interrupt within a specified timeout
913 * (usually 5 seconds). When this happens we assume the worst and reset the
917 xe_watchdog(void *arg)
919 struct xe_softc *scp = arg;
921 XE_ASSERT_LOCKED(scp);
923 if (scp->tx_timeout && --scp->tx_timeout == 0) {
924 device_printf(scp->dev, "watchdog timeout: resetting card\n");
926 if_inc_counter(scp->ifp, IFCOUNTER_OERRORS, scp->tx_queued);
931 callout_reset(&scp->wdog_timer, hz, xe_watchdog, scp);
935 * Change media selection.
938 xe_media_change(struct ifnet *ifp)
940 struct xe_softc *scp = ifp->if_softc;
942 DEVPRINTF(2, (scp->dev, "media_change\n"));
945 if (IFM_TYPE(scp->ifm->ifm_media) != IFM_ETHER) {
951 * Some card/media combos aren't always possible -- filter
954 if ((IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_AUTO ||
955 IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_100_TX) && !scp->phy_ok) {
967 * Return current media selection.
970 xe_media_status(struct ifnet *ifp, struct ifmediareq *mrp)
972 struct xe_softc *scp = ifp->if_softc;
974 DEVPRINTF(3, (scp->dev, "media_status\n"));
976 /* XXX - This is clearly wrong. Will fix once I have CE2 working */
978 mrp->ifm_status = IFM_AVALID | IFM_ACTIVE;
979 mrp->ifm_active = ((struct xe_softc *)ifp->if_softc)->media;
984 * Select active media.
987 xe_setmedia(void *xscp)
989 struct xe_softc *scp = xscp;
990 uint16_t bmcr, bmsr, anar, lpar;
992 DEVPRINTF(2, (scp->dev, "setmedia\n"));
994 XE_ASSERT_LOCKED(scp);
996 /* Cancel any pending timeout */
997 callout_stop(&scp->media_timer);
998 xe_disable_intr(scp);
1001 scp->media = IFM_ETHER;
1002 switch (IFM_SUBTYPE(scp->ifm->ifm_media)) {
1004 case IFM_AUTO: /* Autoselect media */
1005 scp->media = IFM_ETHER|IFM_AUTO;
1008 * Autoselection is really awful. It goes something like this:
1010 * Wait until the transmitter goes idle (2sec timeout).
1012 * IF a 100Mbit PHY exists
1013 * Start NWAY autonegotiation (3.5sec timeout)
1015 * Select 100baseTX or 10baseT, whichever was detected
1018 * IF a 100Mbit PHY exists
1019 * Try to force a 100baseTX link (3sec timeout)
1028 * IF nothing selected so far
1029 * IF a 100Mbit PHY exists
1032 * Select 10baseT or 10base2, whichever is connected
1036 switch (scp->autoneg_status) {
1037 case XE_AUTONEG_NONE:
1038 DEVPRINTF(2, (scp->dev,
1039 "Waiting for idle transmitter\n"));
1040 scp->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1041 scp->autoneg_status = XE_AUTONEG_WAITING;
1043 case XE_AUTONEG_WAITING:
1044 if (scp->tx_queued != 0) {
1045 callout_reset(&scp->media_timer, hz / 2,
1050 DEVPRINTF(2, (scp->dev,
1051 "Starting autonegotiation\n"));
1052 bmcr = xe_phy_readreg(scp, PHY_BMCR);
1053 bmcr &= ~(PHY_BMCR_AUTONEGENBL);
1054 xe_phy_writereg(scp, PHY_BMCR, bmcr);
1055 anar = xe_phy_readreg(scp, PHY_ANAR);
1056 anar &= ~(PHY_ANAR_100BT4 |
1057 PHY_ANAR_100BTXFULL | PHY_ANAR_10BTFULL);
1058 anar |= PHY_ANAR_100BTXHALF | PHY_ANAR_10BTHALF;
1059 xe_phy_writereg(scp, PHY_ANAR, anar);
1060 bmcr |= PHY_BMCR_AUTONEGENBL |
1061 PHY_BMCR_AUTONEGRSTR;
1062 xe_phy_writereg(scp, PHY_BMCR, bmcr);
1063 scp->autoneg_status = XE_AUTONEG_STARTED;
1064 callout_reset(&scp->media_timer, hz * 7/2,
1068 scp->autoneg_status = XE_AUTONEG_FAIL;
1071 case XE_AUTONEG_STARTED:
1072 bmsr = xe_phy_readreg(scp, PHY_BMSR);
1073 lpar = xe_phy_readreg(scp, PHY_LPAR);
1074 if (bmsr & (PHY_BMSR_AUTONEGCOMP | PHY_BMSR_LINKSTAT)) {
1075 DEVPRINTF(2, (scp->dev,
1076 "Autonegotiation complete!\n"));
1079 * XXX - Shouldn't have to do this,
1080 * but (on my hub at least) the
1081 * transmitter won't work after a
1082 * successful autoneg. So we see what
1083 * the negotiation result was and
1084 * force that mode. I'm sure there is
1085 * an easy fix for this.
1087 if (lpar & PHY_LPAR_100BTXHALF) {
1088 xe_phy_writereg(scp, PHY_BMCR,
1092 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
1093 scp->media = IFM_ETHER | IFM_100_TX;
1094 scp->autoneg_status = XE_AUTONEG_NONE;
1097 * XXX - Bit of a hack going
1098 * on in here. This is
1099 * derived from Ken Hughes
1100 * patch to the Linux driver
1101 * to make it work with 10Mbit
1102 * _autonegotiated_ links on
1103 * CE3B cards. What's a CE3B
1104 * and how's it differ from a
1105 * plain CE3? these are the
1106 * things we need to find out.
1108 xe_phy_writereg(scp, PHY_BMCR, 0x0000);
1111 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
1112 XE_SELECT_PAGE(0x42);
1113 XE_OUTB(XE_SWC1, 0x80);
1114 scp->media = IFM_ETHER | IFM_10_T;
1115 scp->autoneg_status = XE_AUTONEG_NONE;
1119 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08);
1120 scp->autoneg_status = XE_AUTONEG_FAIL;
1124 DEVPRINTF(2, (scp->dev,
1125 "Autonegotiation failed; trying 100baseTX\n"));
1128 xe_phy_writereg(scp, PHY_BMCR,
1130 scp->autoneg_status = XE_AUTONEG_100TX;
1131 callout_reset(&scp->media_timer, hz * 3,
1135 scp->autoneg_status = XE_AUTONEG_FAIL;
1139 case XE_AUTONEG_100TX:
1140 (void)xe_phy_readreg(scp, PHY_BMSR);
1141 bmsr = xe_phy_readreg(scp, PHY_BMSR);
1142 if (bmsr & PHY_BMSR_LINKSTAT) {
1143 DEVPRINTF(2, (scp->dev,
1144 "Got 100baseTX link!\n"));
1147 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
1148 scp->media = IFM_ETHER | IFM_100_TX;
1149 scp->autoneg_status = XE_AUTONEG_NONE;
1151 DEVPRINTF(2, (scp->dev,
1152 "Autonegotiation failed; disabling PHY\n"));
1154 xe_phy_writereg(scp, PHY_BMCR, 0x0000);
1158 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08);
1159 scp->autoneg_status = XE_AUTONEG_FAIL;
1165 * If we got down here _and_ autoneg_status is
1166 * XE_AUTONEG_FAIL, then either autonegotiation
1167 * failed, or never got started to begin with. In
1168 * either case, select a suitable 10Mbit media and
1169 * hope it works. We don't need to reset the card
1170 * again, since it will have been done already by the
1173 if (scp->autoneg_status == XE_AUTONEG_FAIL) {
1174 DEVPRINTF(2, (scp->dev, "Selecting 10baseX\n"));
1176 XE_SELECT_PAGE(0x42);
1177 XE_OUTB(XE_SWC1, 0x80);
1178 scp->media = IFM_ETHER | IFM_10_T;
1179 scp->autoneg_status = XE_AUTONEG_NONE;
1182 XE_OUTB(XE_GPR0, 4);
1184 XE_SELECT_PAGE(0x42);
1186 (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ?
1188 scp->media = IFM_ETHER | ((XE_INB(XE_ESR) &
1189 XE_ESR_MEDIA_SELECT) ? IFM_10_T : IFM_10_2);
1190 scp->autoneg_status = XE_AUTONEG_NONE;
1196 * If a specific media has been requested, we just reset the
1197 * card and select it (one small exception -- if 100baseTX is
1198 * requested but there is no PHY, we fall back to 10baseT
1201 case IFM_100_TX: /* Force 100baseTX */
1203 DEVPRINTF(2, (scp->dev, "Selecting 100baseTX\n"));
1204 XE_SELECT_PAGE(0x42);
1205 XE_OUTB(XE_SWC1, 0);
1206 xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL);
1208 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08);
1209 scp->media |= IFM_100_TX;
1213 case IFM_10_T: /* Force 10baseT */
1214 DEVPRINTF(2, (scp->dev, "Selecting 10baseT\n"));
1216 xe_phy_writereg(scp, PHY_BMCR, 0x0000);
1220 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08);
1222 XE_SELECT_PAGE(0x42);
1223 XE_OUTB(XE_SWC1, 0x80);
1224 scp->media |= IFM_10_T;
1227 DEVPRINTF(2, (scp->dev, "Selecting 10base2\n"));
1228 XE_SELECT_PAGE(0x42);
1229 XE_OUTB(XE_SWC1, 0xc0);
1230 scp->media |= IFM_10_2;
1235 * Finally, the LEDs are set to match whatever media was
1236 * chosen and the transmitter is unblocked.
1238 DEVPRINTF(2, (scp->dev, "Setting LEDs\n"));
1240 switch (IFM_SUBTYPE(scp->media)) {
1243 XE_OUTB(XE_LED, 0x3b);
1245 XE_OUTB(0x0b, 0x04); /* 100Mbit LED */
1248 XE_OUTB(XE_LED, 0x3a);
1252 /* Restart output? */
1253 xe_enable_intr(scp);
1254 scp->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1255 xe_start_locked(scp->ifp);
1259 * Hard reset (power cycle) the card.
1262 xe_reset(struct xe_softc *scp)
1265 DEVPRINTF(2, (scp->dev, "reset\n"));
1267 XE_ASSERT_LOCKED(scp);
1271 XE_OUTB(XE_GPR1, 0);
1274 /* Power up again */
1276 XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN);
1278 XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN | XE_GPR1_AIC);
1285 * Take interface offline. This is done by powering down the device, which I
1286 * assume means just shutting down the transceiver and Ethernet logic. This
1287 * requires a _hard_ reset to recover from, as we need to power up again.
1290 xe_stop(struct xe_softc *scp)
1293 DEVPRINTF(2, (scp->dev, "stop\n"));
1295 XE_ASSERT_LOCKED(scp);
1298 * Shut off interrupts.
1300 xe_disable_intr(scp);
1306 XE_OUTB(XE_GPR1, 0);
1310 * set GP1 and GP2 as outputs (bits 2 & 3)
1311 * set GP1 high to power on the ML6692 (bit 0)
1312 * set GP2 low to power on the 10Mhz chip (bit 1)
1315 XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT | XE_GPR0_GP1_SELECT |
1320 * ~IFF_DRV_RUNNING == interface down.
1322 scp->ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1323 scp->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1324 scp->tx_timeout = 0;
1325 callout_stop(&scp->wdog_timer);
1326 callout_stop(&scp->media_timer);
1330 * Enable interrupts from the card.
1333 xe_enable_intr(struct xe_softc *scp)
1336 DEVPRINTF(2, (scp->dev, "enable_intr\n"));
1339 XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Enable interrupts */
1340 if (scp->modem && !scp->dingo) { /* This bit is just magic */
1341 if (!(XE_INB(0x10) & 0x01)) {
1342 XE_OUTB(0x10, 0x11); /* Unmask master int enable */
1348 * Disable interrupts from the card.
1351 xe_disable_intr(struct xe_softc *scp)
1354 DEVPRINTF(2, (scp->dev, "disable_intr\n"));
1357 XE_OUTB(XE_CR, 0); /* Disable interrupts */
1358 if (scp->modem && !scp->dingo) { /* More magic */
1359 XE_OUTB(0x10, 0x10); /* Mask the master int enable */
1364 * Set up multicast filter and promiscuous modes.
1367 xe_set_multicast(struct xe_softc *scp)
1370 struct ifmultiaddr *maddr;
1373 DEVPRINTF(2, (scp->dev, "set_multicast\n"));
1376 XE_SELECT_PAGE(0x42);
1378 /* Handle PROMISC flag */
1379 if (ifp->if_flags & IFF_PROMISC) {
1380 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_PROMISCUOUS);
1383 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_PROMISCUOUS);
1385 /* Handle ALLMULTI flag */
1386 if (ifp->if_flags & IFF_ALLMULTI) {
1387 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_ALLMULTI);
1390 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI);
1392 /* Iterate over multicast address list */
1394 if_maddr_rlock(ifp);
1395 TAILQ_FOREACH(maddr, &ifp->if_multiaddrs, ifma_link) {
1396 if (maddr->ifma_addr->sa_family != AF_LINK)
1403 * First 9 use Individual Addresses for exact
1407 LLADDR((struct sockaddr_dl *)maddr->ifma_addr),
1409 else if (scp->mohawk)
1410 /* Use hash filter on Mohawk and Dingo */
1412 LLADDR((struct sockaddr_dl *)maddr->ifma_addr));
1414 /* Nowhere else to put them on CE2 */
1417 if_maddr_runlock(ifp);
1419 DEVPRINTF(2, (scp->dev, "set_multicast: count = %u\n", count));
1421 /* Now do some cleanup and enable multicast handling as needed */
1423 /* Disable all multicast handling */
1424 XE_SELECT_PAGE(0x42);
1425 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) &
1426 ~(XE_SWC1_IA_ENABLE | XE_SWC1_ALLMULTI));
1428 XE_SELECT_PAGE(0x02);
1429 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE);
1431 } else if (count < 10) {
1433 * Full in any unused Individual Addresses with our
1436 for (i = count + 1; i < 10; i++)
1437 xe_set_addr(scp, IF_LLADDR(scp->ifp), i);
1439 /* Enable Individual Address matching only */
1440 XE_SELECT_PAGE(0x42);
1441 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) |
1444 XE_SELECT_PAGE(0x02);
1445 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE);
1447 } else if (scp->mohawk) {
1448 /* Check whether hash table is full */
1449 XE_SELECT_PAGE(0x58);
1450 for (i = 0x08; i < 0x10; i++)
1451 if (XE_INB(i) != 0xff)
1455 * Hash table full - enable
1456 * promiscuous multicast matching
1458 XE_SELECT_PAGE(0x42);
1459 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) &
1460 ~XE_SWC1_IA_ENABLE) | XE_SWC1_ALLMULTI);
1461 XE_SELECT_PAGE(0x02);
1462 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE);
1464 /* Enable hash table and Individual Address matching */
1465 XE_SELECT_PAGE(0x42);
1466 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) |
1468 XE_SELECT_PAGE(0x02);
1469 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | XE_MSR_HASH_TABLE);
1472 /* Enable promiscuous multicast matching */
1473 XE_SELECT_PAGE(0x42);
1474 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_IA_ENABLE) |
1482 * Copy the Ethernet multicast address in addr to the on-chip registers for
1483 * Individual Address idx. Assumes that addr is really a multicast address
1484 * and that idx > 0 (slot 0 is always used for the card MAC address).
1487 xe_set_addr(struct xe_softc *scp, uint8_t* addr, unsigned idx)
1493 * Individual Addresses are stored in registers 8-F of pages
1494 * 0x50-0x57. IA1 therefore starts at register 0xE on page
1495 * 0x50. The expressions below compute the starting page and
1496 * register for any IA index > 0.
1499 page = 0x50 + idx % 4 + idx / 4 * 3;
1500 reg = 0x0e - 2 * (idx % 4);
1502 DEVPRINTF(3, (scp->dev,
1503 "set_addr: idx = %u, page = 0x%02x, reg = 0x%02x\n", idx + 1, page,
1507 * Copy the IA bytes. Note that the byte order is reversed
1508 * for Mohawk and Dingo wrt. CE2 hardware.
1510 XE_SELECT_PAGE(page);
1511 for (i = 0; i < ETHER_ADDR_LEN; i++) {
1513 DPRINTF(3, (":%02x", addr[i]));
1515 DEVPRINTF(3, (scp->dev, "set_addr: %02x", addr[0]));
1517 XE_OUTB(reg, addr[scp->mohawk ? 5 - i : i]);
1518 if (++reg == 0x10) {
1520 XE_SELECT_PAGE(++page);
1527 * Set the appropriate bit in the multicast hash table for the supplied
1528 * Ethernet multicast address addr. Assumes that addr is really a multicast
1532 xe_mchash(struct xe_softc* scp, const uint8_t *addr)
1537 hash = ether_crc32_le(addr, ETHER_ADDR_LEN) & 0x3F;
1540 * Top 3 bits of hash give register - 8, bottom 3 give bit
1543 byte = hash >> 3 | 0x08;
1544 bit = 0x01 << (hash & 0x07);
1546 DEVPRINTF(3, (scp->dev,
1547 "set_hash: hash = 0x%02x, byte = 0x%02x, bit = 0x%02x\n", hash,
1550 XE_SELECT_PAGE(0x58);
1551 XE_OUTB(byte, XE_INB(byte) | bit);
1555 * Write an outgoing packet to the card using programmed I/O.
1558 xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp)
1561 unsigned char wantbyte;
1563 uint8_t savebyte[2];
1565 /* Get total packet length */
1566 if (mbp->m_flags & M_PKTHDR)
1567 len = mbp->m_pkthdr.len;
1569 struct mbuf* mbp2 = mbp;
1570 for (len = 0; mbp2 != NULL;
1571 len += mbp2->m_len, mbp2 = mbp2->m_next);
1574 DEVPRINTF(3, (scp->dev, "pio_write_packet: len = %u\n", len));
1576 /* Packets < minimum length may need to be padded out */
1578 if (len < scp->tx_min) {
1579 pad = scp->tx_min - len;
1583 /* Check transmit buffer space */
1585 XE_OUTW(XE_TRS, len + 2); /* Only effective on rev. 1 CE2 cards */
1586 if ((XE_INW(XE_TSO) & 0x7fff) <= len + 2)
1589 /* Send packet length to card */
1590 XE_OUTW(XE_EDP, len);
1593 * Write packet to card using PIO (code stolen from the ed driver)
1596 while (mbp != NULL) {
1599 data = mtod(mbp, caddr_t);
1600 if (wantbyte) { /* Finish the last word */
1601 savebyte[1] = *data;
1602 XE_OUTW(XE_EDP, *(u_short *)savebyte);
1607 if (len > 1) { /* Output contiguous words */
1608 bus_write_multi_2(scp->port_res, XE_EDP,
1609 (uint16_t *)data, len >> 1);
1613 if (len == 1) { /* Save last byte, if needed */
1614 savebyte[0] = *data;
1622 * Send last byte of odd-length packets
1625 XE_OUTB(XE_EDP, savebyte[0]);
1628 * Can just tell CE3 cards to send; short packets will be
1629 * padded out with random cruft automatically. For CE2,
1630 * manually pad the packet with garbage; it will be sent when
1631 * the required number of bytes have been delivered to the
1635 XE_OUTB(XE_CR, XE_CR_TX_PACKET | XE_CR_RESTART_TX |
1639 XE_OUTB(XE_EDP, 0xaa);
1642 XE_OUTW(XE_EDP, 0xdead);
1650 /**************************************************************
1652 * M I I F U N C T I O N S *
1654 **************************************************************/
1657 * Alternative MII/PHY handling code adapted from the xl driver. It doesn't
1658 * seem to work any better than the xirc2_ps stuff, but it's cleaner code.
1659 * XXX - this stuff shouldn't be here. It should all be abstracted off to
1660 * XXX - some kind of common MII-handling code, shared by all drivers. But
1661 * XXX - that's a whole other mission.
1663 #define XE_MII_SET(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) | (x))
1664 #define XE_MII_CLR(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) & ~(x))
1667 * Sync the PHYs by setting data bit and strobing the clock 32 times.
1670 xe_mii_sync(struct xe_softc *scp)
1675 XE_MII_SET(XE_MII_DIR|XE_MII_WRD);
1677 for (i = 0; i < 32; i++) {
1678 XE_MII_SET(XE_MII_CLK);
1680 XE_MII_CLR(XE_MII_CLK);
1686 * Look for a MII-compliant PHY. If we find one, reset it.
1689 xe_mii_init(struct xe_softc *scp)
1693 status = xe_phy_readreg(scp, PHY_BMSR);
1694 if ((status & 0xff00) != 0x7800) {
1695 DEVPRINTF(2, (scp->dev, "no PHY found, %0x\n", status));
1698 DEVPRINTF(2, (scp->dev, "PHY OK!\n"));
1701 xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_RESET);
1703 while(xe_phy_readreg(scp, PHY_BMCR) & PHY_BMCR_RESET)
1711 * Clock a series of bits through the MII.
1714 xe_mii_send(struct xe_softc *scp, uint32_t bits, int cnt)
1719 XE_MII_CLR(XE_MII_CLK);
1721 for (i = (0x1 << (cnt - 1)); i; i >>= 1) {
1723 XE_MII_SET(XE_MII_WRD);
1725 XE_MII_CLR(XE_MII_WRD);
1728 XE_MII_CLR(XE_MII_CLK);
1730 XE_MII_SET(XE_MII_CLK);
1735 * Read an PHY register through the MII.
1738 xe_mii_readreg(struct xe_softc *scp, struct xe_mii_frame *frame)
1742 XE_ASSERT_LOCKED(scp);
1745 * Set up frame for RX.
1747 frame->mii_stdelim = XE_MII_STARTDELIM;
1748 frame->mii_opcode = XE_MII_READOP;
1749 frame->mii_turnaround = 0;
1750 frame->mii_data = 0;
1753 XE_OUTB(XE_GPR2, 0);
1756 * Turn on data xmit.
1758 XE_MII_SET(XE_MII_DIR);
1763 * Send command/address info.
1765 xe_mii_send(scp, frame->mii_stdelim, 2);
1766 xe_mii_send(scp, frame->mii_opcode, 2);
1767 xe_mii_send(scp, frame->mii_phyaddr, 5);
1768 xe_mii_send(scp, frame->mii_regaddr, 5);
1771 XE_MII_CLR((XE_MII_CLK|XE_MII_WRD));
1773 XE_MII_SET(XE_MII_CLK);
1776 /* Turn off xmit. */
1777 XE_MII_CLR(XE_MII_DIR);
1780 XE_MII_CLR(XE_MII_CLK);
1782 ack = XE_INB(XE_GPR2) & XE_MII_RDD;
1783 XE_MII_SET(XE_MII_CLK);
1787 * Now try reading data bits. If the ack failed, we still
1788 * need to clock through 16 cycles to keep the PHY(s) in sync.
1791 for(i = 0; i < 16; i++) {
1792 XE_MII_CLR(XE_MII_CLK);
1794 XE_MII_SET(XE_MII_CLK);
1800 for (i = 0x8000; i; i >>= 1) {
1801 XE_MII_CLR(XE_MII_CLK);
1804 if (XE_INB(XE_GPR2) & XE_MII_RDD)
1805 frame->mii_data |= i;
1808 XE_MII_SET(XE_MII_CLK);
1813 XE_MII_CLR(XE_MII_CLK);
1815 XE_MII_SET(XE_MII_CLK);
1824 * Write to a PHY register through the MII.
1827 xe_mii_writereg(struct xe_softc *scp, struct xe_mii_frame *frame)
1830 XE_ASSERT_LOCKED(scp);
1833 * Set up frame for TX.
1835 frame->mii_stdelim = XE_MII_STARTDELIM;
1836 frame->mii_opcode = XE_MII_WRITEOP;
1837 frame->mii_turnaround = XE_MII_TURNAROUND;
1842 * Turn on data output.
1844 XE_MII_SET(XE_MII_DIR);
1848 xe_mii_send(scp, frame->mii_stdelim, 2);
1849 xe_mii_send(scp, frame->mii_opcode, 2);
1850 xe_mii_send(scp, frame->mii_phyaddr, 5);
1851 xe_mii_send(scp, frame->mii_regaddr, 5);
1852 xe_mii_send(scp, frame->mii_turnaround, 2);
1853 xe_mii_send(scp, frame->mii_data, 16);
1856 XE_MII_SET(XE_MII_CLK);
1858 XE_MII_CLR(XE_MII_CLK);
1864 XE_MII_CLR(XE_MII_DIR);
1870 * Read a register from the PHY.
1873 xe_phy_readreg(struct xe_softc *scp, uint16_t reg)
1875 struct xe_mii_frame frame;
1877 bzero((char *)&frame, sizeof(frame));
1879 frame.mii_phyaddr = 0;
1880 frame.mii_regaddr = reg;
1881 xe_mii_readreg(scp, &frame);
1883 return (frame.mii_data);
1887 * Write to a PHY register.
1890 xe_phy_writereg(struct xe_softc *scp, uint16_t reg, uint16_t data)
1892 struct xe_mii_frame frame;
1894 bzero((char *)&frame, sizeof(frame));
1896 frame.mii_phyaddr = 0;
1897 frame.mii_regaddr = reg;
1898 frame.mii_data = data;
1899 xe_mii_writereg(scp, &frame);
1903 * A bit of debugging code.
1906 xe_mii_dump(struct xe_softc *scp)
1910 device_printf(scp->dev, "MII registers: ");
1911 for (i = 0; i < 2; i++) {
1912 printf(" %d:%04x", i, xe_phy_readreg(scp, i));
1914 for (i = 4; i < 7; i++) {
1915 printf(" %d:%04x", i, xe_phy_readreg(scp, i));
1922 xe_reg_dump(struct xe_softc *scp)
1926 device_printf(scp->dev, "Common registers: ");
1927 for (i = 0; i < 8; i++) {
1928 printf(" %2.2x", XE_INB(i));
1932 for (page = 0; page <= 8; page++) {
1933 device_printf(scp->dev, "Register page %2.2x: ", page);
1934 XE_SELECT_PAGE(page);
1935 for (i = 8; i < 16; i++) {
1936 printf(" %2.2x", XE_INB(i));
1941 for (page = 0x10; page < 0x5f; page++) {
1942 if ((page >= 0x11 && page <= 0x3f) ||
1944 (page >= 0x43 && page <= 0x4f) ||
1947 device_printf(scp->dev, "Register page %2.2x: ", page);
1948 XE_SELECT_PAGE(page);
1949 for (i = 8; i < 16; i++) {
1950 printf(" %2.2x", XE_INB(i));
1958 xe_activate(device_t dev)
1960 struct xe_softc *sc = device_get_softc(dev);
1963 DEVPRINTF(2, (dev, "activate\n"));
1966 sc->port_rid = 0; /* 0 is managed by pccard */
1967 sc->port_res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
1968 &sc->port_rid, 16, RF_ACTIVE);
1969 } else if (sc->dingo) {
1971 * Find a 16 byte aligned ioport for the card.
1973 DEVPRINTF(1, (dev, "Finding an aligned port for RealPort\n"));
1974 sc->port_rid = 1; /* 0 is managed by pccard */
1977 sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
1978 &sc->port_rid, start, 0x3ff, 16, RF_ACTIVE);
1979 if (sc->port_res == NULL)
1981 if ((rman_get_start(sc->port_res) & 0xf) == 0)
1983 bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid,
1985 start = (rman_get_start(sc->port_res) + 15) & ~0xf;
1987 DEVPRINTF(1, (dev, "RealPort port 0x%0lx, size 0x%0lx\n",
1988 bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid),
1989 bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid)));
1990 } else if (sc->ce2) {
1992 * Find contiguous I/O port for the Ethernet function
1993 * on CEM2 and CEM3 cards. We allocate window 0
1994 * wherever pccard has decided it should be, then find
1995 * an available window adjacent to it for the second
1996 * function. Not sure that both windows are actually
1999 DEVPRINTF(1, (dev, "Finding I/O port for CEM2/CEM3\n"));
2000 sc->ce2_port_rid = 0; /* 0 is managed by pccard */
2001 sc->ce2_port_res = bus_alloc_resource_anywhere(dev,
2002 SYS_RES_IOPORT, &sc->ce2_port_rid, 8, RF_ACTIVE);
2003 if (sc->ce2_port_res == NULL) {
2005 "Cannot allocate I/O port for modem\n"));
2011 start = bus_get_resource_start(dev, SYS_RES_IOPORT,
2013 for (i = 0; i < 2; i++) {
2014 start += (i == 0 ? 8 : -24);
2015 sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
2016 &sc->port_rid, start, start + 15, 16, RF_ACTIVE);
2017 if (sc->port_res == NULL)
2019 if (bus_get_resource_start(dev, SYS_RES_IOPORT,
2020 sc->port_rid) == start)
2023 bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid,
2025 sc->port_res = NULL;
2027 DEVPRINTF(1, (dev, "CEM2/CEM3 port 0x%0lx, size 0x%0lx\n",
2028 bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid),
2029 bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid)));
2032 if (!sc->port_res) {
2033 DEVPRINTF(1, (dev, "Cannot allocate ioport\n"));
2039 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2041 if (sc->irq_res == NULL) {
2042 DEVPRINTF(1, (dev, "Cannot allocate irq\n"));
2051 xe_deactivate(device_t dev)
2053 struct xe_softc *sc = device_get_softc(dev);
2055 DEVPRINTF(2, (dev, "deactivate\n"));
2057 bus_teardown_intr(dev, sc->irq_res, sc->intrhand);
2058 sc->intrhand = NULL;
2060 bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid,
2062 sc->port_res = NULL;
2063 if (sc->ce2_port_res)
2064 bus_release_resource(dev, SYS_RES_IOPORT, sc->ce2_port_rid,
2066 sc->ce2_port_res = NULL;
2068 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid,