1 /*- 2 * Copyright (c) 1998, 1999, 2003 Scott Mitchell 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 24 * SUCH DAMAGE. 25 * 26 * $Id: if_xe.c,v 1.20 1999/06/13 19:17:40 scott Exp $ 27 * $FreeBSD: src/sys/dev/xe/if_xe.c,v 1.39 2003/10/14 22:51:35 rsm Exp $ 28 */ 29 30 /* 31 * Portions of this software were derived from Werner Koch's xirc2ps driver 32 * for Linux under the terms of the following license (from v1.30 of the 33 * xirc2ps driver): 34 * 35 * Copyright (c) 1997 by Werner Koch (dd9jn) 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, and the entire permission notice in its entirety, 42 * including the disclaimer of warranties. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. The name of the author may not be used to endorse or promote 47 * products derived from this software without specific prior 48 * written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 51 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 53 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 54 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 55 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 56 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 58 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 60 * OF THE POSSIBILITY OF SUCH DAMAGE. 61 */ 62 63 /* 64 * FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The 65 * following cards are currently known to work with the driver: 66 * Xircom CreditCard 10/100 (CE3) 67 * Xircom CreditCard Ethernet + Modem 28 (CEM28) 68 * Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56) 69 * Xircom RealPort Ethernet 10 70 * Xircom RealPort Ethernet 10/100 71 * Xircom RealPort Ethernet 10/100 + Modem 56 (REM56, REM56G) 72 * Intel EtherExpress Pro/100 PC Card Mobile Adapter 16 (Pro/100 M16A) 73 * Compaq Netelligent 10/100 PC Card (CPQ-10/100) 74 * 75 * Some other cards *should* work, but support for them is either broken or in 76 * an unknown state at the moment. I'm always interested in hearing from 77 * people who own any of these cards: 78 * Xircom CreditCard 10Base-T (PS-CE2-10) 79 * Xircom CreditCard Ethernet + ModemII (CEM2) 80 * Xircom CEM28 and CEM33 Ethernet/Modem cards (may be variants of CEM2?) 81 * 82 * Thanks to all who assisted with the development and testing of the driver, 83 * especially: Werner Koch, Duke Kamstra, Duncan Barclay, Jason George, Dru 84 * Nelson, Mike Kephart, Bill Rainey and Douglas Rand. Apologies if I've left 85 * out anyone who deserves a mention here. 86 * 87 * Special thanks to Ade Lovett for both hosting the mailing list and doing 88 * the CEM56/REM56 support code; and the FreeBSD UK Users' Group for hosting 89 * the web pages. 90 * 91 * Author email: <scott@uk.freebsd.org> 92 * Driver web page: http://ukug.uk.freebsd.org/~scott/xe_drv/ 93 */ 94 95 96 #include <sys/param.h> 97 #include <sys/errno.h> 98 #include <sys/kernel.h> 99 #include <sys/mbuf.h> 100 #include <sys/select.h> 101 #include <sys/socket.h> 102 #include <sys/sockio.h> 103 #include <sys/sysctl.h> 104 #include <sys/systm.h> 105 #include <sys/uio.h> 106 #include <sys/serialize.h> 107 #include <sys/module.h> 108 #include <sys/bus.h> 109 #include <sys/rman.h> 110 #include <sys/thread2.h> 111 #include <sys/interrupt.h> 112 113 #include <net/ethernet.h> 114 #include <net/if.h> 115 #include <net/ifq_var.h> 116 #include <net/if_arp.h> 117 #include <net/if_dl.h> 118 #include <net/if_media.h> 119 #include <net/if_mib.h> 120 #include <net/bpf.h> 121 122 #include "if_xereg.h" 123 #include "if_xevar.h" 124 125 /* 126 * MII command structure 127 */ 128 struct xe_mii_frame { 129 u_int8_t mii_stdelim; 130 u_int8_t mii_opcode; 131 u_int8_t mii_phyaddr; 132 u_int8_t mii_regaddr; 133 u_int8_t mii_turnaround; 134 u_int16_t mii_data; 135 }; 136 137 /* 138 * Media autonegotiation progress constants 139 */ 140 #define XE_AUTONEG_NONE 0 /* No autonegotiation in progress */ 141 #define XE_AUTONEG_WAITING 1 /* Waiting for transmitter to go idle */ 142 #define XE_AUTONEG_STARTED 2 /* Waiting for autonegotiation to complete */ 143 #define XE_AUTONEG_100TX 3 /* Trying to force 100baseTX link */ 144 #define XE_AUTONEG_FAIL 4 /* Autonegotiation failed */ 145 146 /* 147 * Multicast hashing CRC constants 148 */ 149 #define XE_CRC_POLY 0x04c11db6 150 151 /* 152 * Prototypes start here 153 */ 154 static void xe_init (void *xscp); 155 static void xe_intr (void *xscp); 156 static void xe_start (struct ifnet *ifp, struct ifaltq_subque *); 157 static int xe_ioctl (struct ifnet *ifp, u_long command, caddr_t data, struct ucred *); 158 static void xe_watchdog (struct ifnet *ifp); 159 static int xe_media_change (struct ifnet *ifp); 160 static void xe_media_status (struct ifnet *ifp, struct ifmediareq *mrp); 161 static timeout_t xe_setmedia; 162 static timeout_t xe_setmedia_serialized; 163 static void xe_reset (struct xe_softc *scp); 164 static void xe_stop (struct xe_softc *scp); 165 static void xe_enable_intr (struct xe_softc *scp); 166 static void xe_disable_intr (struct xe_softc *scp); 167 static void xe_set_multicast (struct xe_softc *scp); 168 static void xe_set_addr (struct xe_softc *scp, u_int8_t* addr, unsigned idx); 169 static void xe_set_hash (struct xe_softc *scp, u_int8_t* addr); 170 static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp); 171 172 /* 173 * MII functions 174 */ 175 static void xe_mii_sync (struct xe_softc *scp); 176 static int xe_mii_init (struct xe_softc *scp); 177 static void xe_mii_send (struct xe_softc *scp, u_int32_t bits, int cnt); 178 static int xe_mii_readreg (struct xe_softc *scp, struct xe_mii_frame *frame); 179 static int xe_mii_writereg (struct xe_softc *scp, struct xe_mii_frame *frame); 180 static u_int16_t xe_phy_readreg (struct xe_softc *scp, u_int16_t reg); 181 static void xe_phy_writereg (struct xe_softc *scp, u_int16_t reg, u_int16_t data); 182 183 /* Debugging functions */ 184 static void xe_reg_dump (struct xe_softc *scp) __unused; 185 static void xe_mii_dump (struct xe_softc *scp); 186 187 #define XE_DEBUG 188 189 #ifdef XE_DEBUG 190 191 /* sysctl vars */ 192 SYSCTL_NODE(_hw, OID_AUTO, xe, CTLFLAG_RD, 0, "xe parameters"); 193 194 /* 195 * Debug logging levels - set with hw.xe.debug sysctl 196 * 0 = None 197 * 1 = More hardware details, probe/attach progress 198 * 2 = Most function calls, ioctls and media selection progress 199 * 3 = Everything - interrupts, packets in/out and multicast address setup 200 */ 201 int xe_debug = 1; 202 SYSCTL_INT(_hw_xe, OID_AUTO, debug, CTLFLAG_RW, &xe_debug, 0, "xe debug level"); 203 204 #define DPRINTF(level, arg) if (xe_debug >= (level)) kprintf arg 205 #define IFPRINTF(level, arg) if (xe_debug >= (level)) if_printf arg 206 #define DEVPRINTF(level, arg) if (xe_debug >= (level)) device_printf arg 207 #define XE_MII_DUMP(scp) if (xe_debug >= 3) xe_mii_dump(scp) 208 #define XE_REG_DUMP(scp) if (xe_debug >= 3) xe_reg_dump(scp) 209 210 #else /* !XE_DEBUG */ 211 212 #define DPRINTF(level, arg) 213 #define IFPRINTF(level, arg) 214 #define DEVPRINTF(level, arg) 215 #define XE_REG_DUMP(scp) 216 #define XE_MII_DUMP(scp) 217 218 #endif /* XE_DEBUG */ 219 220 /* 221 * The device entry is being removed, probably because someone ejected the 222 * card. The interface should have been brought down manually before calling 223 * this function; if not you may well lose packets. In any case, I shut down 224 * the card and the interface, and hope for the best. 225 */ 226 int 227 xe_detach(device_t dev) 228 { 229 struct xe_softc *sc = device_get_softc(dev); 230 struct ifnet *ifp = &sc->arpcom.ac_if; 231 232 lwkt_serialize_enter(ifp->if_serializer); 233 234 ifp->if_flags &= ~IFF_RUNNING; 235 callout_stop(&sc->xe_timer); 236 bus_teardown_intr(dev, sc->irq_res, sc->intrhand); 237 238 lwkt_serialize_exit(ifp->if_serializer); 239 240 ether_ifdetach(ifp); 241 xe_deactivate(dev); 242 243 return 0; 244 } 245 246 /* 247 * Attach a device. 248 */ 249 int 250 xe_attach (device_t dev) 251 { 252 struct xe_softc *scp = device_get_softc(dev); 253 int err; 254 255 DEVPRINTF(2, (dev, "attach\n")); 256 257 /* Fill in some private data */ 258 scp->ifp = &scp->arpcom.ac_if; 259 scp->ifm = &scp->ifmedia; 260 scp->autoneg_status = XE_AUTONEG_NONE; 261 262 /* Initialise the ifnet structure */ 263 scp->ifp->if_softc = scp; 264 if_initname(scp->ifp, device_get_name(dev), device_get_unit(dev)); 265 scp->ifp->if_timer = 0; 266 scp->ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); 267 scp->ifp->if_linkmib = &scp->mibdata; 268 scp->ifp->if_linkmiblen = sizeof scp->mibdata; 269 scp->ifp->if_start = xe_start; 270 scp->ifp->if_ioctl = xe_ioctl; 271 scp->ifp->if_watchdog = xe_watchdog; 272 scp->ifp->if_init = xe_init; 273 scp->ifp->if_baudrate = 100000000; 274 ifq_set_maxlen(&scp->ifp->if_snd, IFQ_MAXLEN); 275 ifq_set_ready(&scp->ifp->if_snd); 276 277 /* Initialise the ifmedia structure */ 278 ifmedia_init(scp->ifm, 0, xe_media_change, xe_media_status); 279 callout_init(&scp->xe_timer); 280 281 /* Add supported media types */ 282 if (scp->mohawk) { 283 ifmedia_add(scp->ifm, IFM_ETHER|IFM_100_TX, 0, NULL); 284 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); 285 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL); 286 } 287 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL); 288 if (scp->ce2) 289 ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_2, 0, NULL); 290 ifmedia_add(scp->ifm, IFM_ETHER|IFM_AUTO, 0, NULL); 291 292 /* Default is to autoselect best supported media type */ 293 ifmedia_set(scp->ifm, IFM_ETHER|IFM_AUTO); 294 295 /* Get the hardware into a known state */ 296 xe_reset(scp); 297 298 /* Get hardware version numbers */ 299 XE_SELECT_PAGE(4); 300 scp->version = XE_INB(XE_BOV); 301 if (scp->mohawk) 302 scp->srev = (XE_INB(XE_BOV) & 0x70) >> 4; 303 else 304 scp->srev = (XE_INB(XE_BOV) & 0x30) >> 4; 305 306 /* Print some useful information */ 307 device_printf(dev, "%s %s, version 0x%02x/0x%02x%s%s\n", 308 scp->vendor, 309 scp->card_type, 310 scp->version, 311 scp->srev, 312 scp->mohawk ? ", 100Mbps capable" : "", 313 scp->modem ? ", with modem" : ""); 314 315 if (scp->mohawk) { 316 XE_SELECT_PAGE(0x10); 317 DEVPRINTF(1, (dev, "DingoID=0x%04x, RevisionID=0x%04x, VendorID=0x%04x\n", 318 XE_INW(XE_DINGOID), 319 XE_INW(XE_RevID), 320 XE_INW(XE_VendorID))); 321 } 322 if (scp->ce2) { 323 XE_SELECT_PAGE(0x45); 324 DEVPRINTF(1, (dev, "CE2 version = 0x%#02x\n", XE_INB(XE_REV))); 325 } 326 327 /* Attach the interface */ 328 ether_ifattach(scp->ifp, scp->arpcom.ac_enaddr, NULL); 329 330 ifq_set_cpuid(&scp->ifp->if_snd, rman_get_cpuid(scp->irq_res)); 331 332 err = bus_setup_intr(dev, scp->irq_res, INTR_MPSAFE, 333 xe_intr, scp, &scp->intrhand, 334 scp->ifp->if_serializer); 335 if (err) { 336 device_printf(dev, "Setup intr failed\n"); 337 ether_ifdetach(scp->ifp); 338 xe_deactivate(dev); 339 return err; 340 } 341 342 /* Done */ 343 return 0; 344 } 345 346 347 /* 348 * Complete hardware intitialisation and enable output. Exits without doing 349 * anything if there's no address assigned to the card, or if media selection 350 * is in progress (the latter implies we've already run this function). 351 */ 352 static void 353 xe_init(void *xscp) { 354 struct xe_softc *scp = xscp; 355 u_int i; 356 357 if (scp->autoneg_status != XE_AUTONEG_NONE) return; 358 359 IFPRINTF(2, (scp->ifp, "init\n")); 360 361 crit_enter(); 362 363 /* Reset transmitter flags */ 364 scp->tx_queued = 0; 365 scp->tx_tpr = 0; 366 scp->tx_timeouts = 0; 367 scp->tx_thres = 64; 368 scp->tx_min = ETHER_MIN_LEN - ETHER_CRC_LEN; 369 scp->ifp->if_timer = 0; 370 371 /* Soft reset the card */ 372 XE_SELECT_PAGE(0); 373 XE_OUTB(XE_CR, XE_CR_SOFT_RESET); 374 DELAY(40000); 375 XE_OUTB(XE_CR, 0); 376 DELAY(40000); 377 378 if (scp->mohawk) { 379 /* 380 * set GP1 and GP2 as outputs (bits 2 & 3) 381 * set GP1 low to power on the ML6692 (bit 0) 382 * set GP2 high to power on the 10Mhz chip (bit 1) 383 */ 384 XE_SELECT_PAGE(4); 385 XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT|XE_GPR0_GP1_SELECT|XE_GPR0_GP2_OUT); 386 } 387 388 /* Shut off interrupts */ 389 xe_disable_intr(scp); 390 391 /* Wait for everything to wake up */ 392 DELAY(500000); 393 394 /* Check for PHY */ 395 if (scp->mohawk) 396 scp->phy_ok = xe_mii_init(scp); 397 398 /* Disable 'source insertion' (not sure what that means) */ 399 XE_SELECT_PAGE(0x42); 400 XE_OUTB(XE_SWC0, XE_SWC0_NO_SRC_INSERT); 401 402 /* Set 8K/24K Tx/Rx buffer split */ 403 if (scp->srev != 1) { 404 XE_SELECT_PAGE(2); 405 XE_OUTW(XE_RBS, 0x2000); 406 } 407 408 /* Enable early transmit mode on Mohawk/Dingo */ 409 if (scp->mohawk) { 410 XE_SELECT_PAGE(0x03); 411 XE_OUTW(XE_TPT, scp->tx_thres); 412 XE_SELECT_PAGE(0x01); 413 XE_OUTB(XE_ECR, XE_INB(XE_ECR) | XE_ECR_EARLY_TX); 414 } 415 416 /* Put MAC address in first 'individual address' register */ 417 XE_SELECT_PAGE(0x50); 418 for (i = 0; i < 6; i++) 419 XE_OUTB(0x08 + i, scp->arpcom.ac_enaddr[scp->mohawk ? 5 - i : i]); 420 421 /* Set up multicast addresses */ 422 xe_set_multicast(scp); 423 424 /* Fix the receive data offset -- reset can leave it off-by-one */ 425 XE_SELECT_PAGE(0); 426 XE_OUTW(XE_DO, 0x2000); 427 428 /* Set interrupt masks */ 429 XE_SELECT_PAGE(1); 430 XE_OUTB(XE_IMR0, XE_IMR0_TX_PACKET | XE_IMR0_MAC_INTR | XE_IMR0_RX_PACKET); 431 432 /* Set MAC interrupt masks */ 433 XE_SELECT_PAGE(0x40); 434 XE_OUTB(XE_RX0Msk, 435 ~(XE_RX0M_RX_OVERRUN | XE_RX0M_CRC_ERROR 436 | XE_RX0M_ALIGN_ERROR | XE_RX0M_LONG_PACKET)); 437 XE_OUTB(XE_TX0Msk, 438 ~(XE_TX0M_SQE_FAIL | XE_TX0M_LATE_COLLISION | XE_TX0M_TX_UNDERRUN 439 | XE_TX0M_16_COLLISIONS | XE_TX0M_NO_CARRIER)); 440 441 /* Clear MAC status registers */ 442 XE_SELECT_PAGE(0x40); 443 XE_OUTB(XE_RST0, 0x00); 444 XE_OUTB(XE_TXST0, 0x00); 445 446 /* Enable receiver and put MAC online */ 447 XE_SELECT_PAGE(0x40); 448 XE_OUTB(XE_CMD0, XE_CMD0_RX_ENABLE|XE_CMD0_ONLINE); 449 450 /* Set up IMR, enable interrupts */ 451 xe_enable_intr(scp); 452 453 /* Start media selection */ 454 xe_setmedia_serialized(scp); 455 456 /* Enable output */ 457 scp->ifp->if_flags |= IFF_RUNNING; 458 ifq_clr_oactive(&scp->ifp->if_snd); 459 460 crit_exit(); 461 } 462 463 464 /* 465 * Start output on interface. Should be called at splimp() priority. Check 466 * that the output is idle (ie, OACTIVE is not set) before calling this 467 * function. If media selection is in progress we set OACTIVE ourselves 468 * and return immediately. 469 */ 470 static void 471 xe_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) { 472 struct xe_softc *scp = ifp->if_softc; 473 struct mbuf *mbp; 474 475 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 476 477 if (scp->autoneg_status != XE_AUTONEG_NONE) { 478 ifq_set_oactive(&ifp->if_snd); 479 return; 480 } 481 482 IFPRINTF(3, (ifp, "start\n")); 483 484 /* 485 * Loop while there are packets to be sent, and space to send them. 486 */ 487 while (1) { 488 /* Suck a packet off the send queue */ 489 mbp = ifq_dequeue(&ifp->if_snd); 490 if (mbp == NULL) { 491 /* 492 * We are using the !OACTIVE flag to indicate to the outside 493 * world that we can accept an additional packet rather than 494 * that the transmitter is _actually_ active. Indeed, the 495 * transmitter may be active, but if we haven't filled all 496 * the buffers with data then we still want to accept more. 497 */ 498 ifq_clr_oactive(&ifp->if_snd); 499 return; 500 } 501 502 if (xe_pio_write_packet(scp, mbp) != 0) { 503 ifq_set_oactive(&ifp->if_snd); 504 ifq_prepend(&ifp->if_snd, mbp); 505 return; 506 } 507 508 BPF_MTAP(ifp, mbp); 509 510 ifp->if_timer = 5; /* In case we don't hear from the card again */ 511 scp->tx_queued++; 512 513 m_freem(mbp); 514 } 515 } 516 517 518 /* 519 * Process an ioctl request. Adapted from the ed driver. 520 */ 521 static int 522 xe_ioctl (struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr) { 523 struct xe_softc *scp; 524 int error; 525 526 scp = ifp->if_softc; 527 error = 0; 528 529 crit_enter(); 530 531 switch (command) { 532 533 case SIOCSIFFLAGS: 534 IFPRINTF(2, (ifp, "ioctl: SIOCSIFFLAGS: 0x%04x\n", ifp->if_flags)); 535 /* 536 * If the interface is marked up and stopped, then start it. If it is 537 * marked down and running, then stop it. 538 */ 539 if (ifp->if_flags & IFF_UP) { 540 if (!(ifp->if_flags & IFF_RUNNING)) { 541 xe_reset(scp); 542 xe_init(scp); 543 } 544 } 545 else { 546 if (ifp->if_flags & IFF_RUNNING) 547 xe_stop(scp); 548 } 549 /* FALL THROUGH (handle changes to PROMISC/ALLMULTI flags) */ 550 551 case SIOCADDMULTI: 552 case SIOCDELMULTI: 553 IFPRINTF(2, (ifp, "ioctl: SIOC{ADD,DEL}MULTI\n")); 554 /* 555 * Multicast list has (maybe) changed; set the hardware filters 556 * accordingly. 557 */ 558 xe_set_multicast(scp); 559 error = 0; 560 break; 561 562 case SIOCSIFMEDIA: 563 case SIOCGIFMEDIA: 564 IFPRINTF(3, (ifp, "ioctl: bounce to ifmedia_ioctl\n")); 565 /* 566 * Someone wants to get/set media options. 567 */ 568 error = ifmedia_ioctl(ifp, (struct ifreq *)data, &scp->ifmedia, command); 569 break; 570 571 default: 572 IFPRINTF(3, (ifp, "ioctl: bounce to ether_ioctl\n")); 573 error = ether_ioctl(ifp, command, data); 574 break; 575 } 576 577 crit_exit(); 578 579 return error; 580 } 581 582 583 /* 584 * Card interrupt handler. 585 * 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 591 * is. 592 * 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 :) 600 */ 601 static void 602 xe_intr(void *xscp) 603 { 604 struct xe_softc *scp = (struct xe_softc *) xscp; 605 struct ifnet *ifp; 606 u_int8_t psr, isr, esr, rsr, rst0, txst0, txst1, coll; 607 608 ifp = &scp->arpcom.ac_if; 609 610 /* Disable interrupts */ 611 if (scp->mohawk) 612 XE_OUTB(XE_CR, 0); 613 614 /* Cache current register page */ 615 psr = XE_INB(XE_PR); 616 617 /* Read ISR to see what caused this interrupt */ 618 while ((isr = XE_INB(XE_ISR)) != 0) { 619 /* 0xff might mean the card is no longer around */ 620 if (isr == 0xff) { 621 IFPRINTF(3, (ifp, "intr: interrupt received for missing card?\n")); 622 break; 623 } 624 625 /* Read other status registers */ 626 XE_SELECT_PAGE(0x40); 627 rst0 = XE_INB(XE_RST0); 628 XE_OUTB(XE_RST0, 0); 629 txst0 = XE_INB(XE_TXST0); 630 txst1 = XE_INB(XE_TXST1); 631 coll = txst1 & XE_TXST1_RETRY_COUNT; 632 XE_OUTB(XE_TXST0, 0); 633 XE_OUTB(XE_TXST1, 0); 634 XE_SELECT_PAGE(0); 635 636 IFPRINTF(3, (ifp, 637 "intr: ISR=0x%02x, RST=0x%02x, TXT=0x%02x%02x, COLL=0x%01x\n", 638 isr, rst0, txst1, txst0, coll)); 639 640 /* Handle transmitted packet(s) */ 641 if (isr & XE_ISR_TX_PACKET) { 642 u_int8_t tpr, sent; 643 644 /* Update packet count, accounting for rollover */ 645 tpr = XE_INB(XE_TPR); 646 sent = -scp->tx_tpr + tpr; 647 648 /* Update statistics if we actually sent anything */ 649 if (sent > 0) { 650 scp->tx_tpr = tpr; 651 scp->tx_queued -= sent; 652 IFNET_STAT_INC(ifp, opackets, sent); 653 IFNET_STAT_INC(ifp, collisions, coll); 654 655 /* 656 * According to the Xircom manual, Dingo will sometimes manage to 657 * transmit a packet with triggering an interrupt. If this happens, 658 * we have sent > 1 and the collision count only reflects collisions 659 * on the last packet sent (the one that triggered the interrupt). 660 * Collision stats might therefore be a bit low, but there doesn't 661 * seem to be anything we can do about that. 662 */ 663 switch (coll) { 664 case 0: 665 break; 666 case 1: 667 scp->mibdata.dot3StatsSingleCollisionFrames++; 668 scp->mibdata.dot3StatsCollFrequencies[0]++; 669 break; 670 default: 671 scp->mibdata.dot3StatsMultipleCollisionFrames++; 672 scp->mibdata.dot3StatsCollFrequencies[coll-1]++; 673 } 674 } 675 ifp->if_timer = 0; 676 ifq_clr_oactive(&ifp->if_snd); 677 } 678 679 /* Handle most MAC interrupts */ 680 if (isr & XE_ISR_MAC_INTR) { 681 #if 0 682 /* Carrier sense lost -- only in 10Mbit HDX mode */ 683 if (txst0 & XE_TXST0_NO_CARRIER || !(txst1 & XE_TXST1_LINK_STATUS)) { 684 /* XXX - Need to update media status here */ 685 device_printf(scp->dev, "no carrier\n"); 686 ifp->if_oerrors++; 687 scp->mibdata.dot3StatsCarrierSenseErrors++; 688 } 689 #endif 690 /* Excessive collisions -- try sending again */ 691 if (txst0 & XE_TXST0_16_COLLISIONS) { 692 IFNET_STAT_INC(ifp, collisions, 16); 693 IFNET_STAT_INC(ifp, oerrors, 1); 694 scp->mibdata.dot3StatsExcessiveCollisions++; 695 scp->mibdata.dot3StatsMultipleCollisionFrames++; 696 scp->mibdata.dot3StatsCollFrequencies[15]++; 697 XE_OUTB(XE_CR, XE_CR_RESTART_TX); 698 } 699 /* Transmit underrun -- increase early transmit threshold */ 700 if (txst0 & XE_TXST0_TX_UNDERRUN && scp->mohawk) { 701 IFPRINTF(1, (ifp, "transmit underrun")); 702 if (scp->tx_thres < ETHER_MAX_LEN) { 703 if ((scp->tx_thres += 64) > ETHER_MAX_LEN) 704 scp->tx_thres = ETHER_MAX_LEN; 705 DPRINTF(1, (": increasing transmit threshold to %u", scp->tx_thres)); 706 XE_SELECT_PAGE(0x3); 707 XE_OUTW(XE_TPT, scp->tx_thres); 708 XE_SELECT_PAGE(0x0); 709 } 710 DPRINTF(1, ("\n")); 711 IFNET_STAT_INC(ifp, oerrors, 1); 712 scp->mibdata.dot3StatsInternalMacTransmitErrors++; 713 } 714 /* Late collision -- just complain about it */ 715 if (txst0 & XE_TXST0_LATE_COLLISION) { 716 if_printf(ifp, "late collision\n"); 717 IFNET_STAT_INC(ifp, oerrors, 1); 718 scp->mibdata.dot3StatsLateCollisions++; 719 } 720 /* SQE test failure -- just complain about it */ 721 if (txst0 & XE_TXST0_SQE_FAIL) { 722 if_printf(ifp, "SQE test failure\n"); 723 IFNET_STAT_INC(ifp, oerrors, 1); 724 scp->mibdata.dot3StatsSQETestErrors++; 725 } 726 /* Packet too long -- what happens to these */ 727 if (rst0 & XE_RST0_LONG_PACKET) { 728 if_printf(ifp, "received giant packet\n"); 729 IFNET_STAT_INC(ifp, ierrors, 1); 730 scp->mibdata.dot3StatsFrameTooLongs++; 731 } 732 /* CRC error -- packet dropped */ 733 if (rst0 & XE_RST0_CRC_ERROR) { 734 if_printf(ifp, "CRC error\n"); 735 IFNET_STAT_INC(ifp, ierrors, 1); 736 scp->mibdata.dot3StatsFCSErrors++; 737 } 738 } 739 740 /* Handle received packet(s) */ 741 while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PACKET_RX) { 742 rsr = XE_INB(XE_RSR); 743 IFPRINTF(3, (ifp, "intr: ESR=0x%02x, RSR=0x%02x\n", esr, rsr)); 744 745 /* Make sure packet is a good one */ 746 if (rsr & XE_RSR_RX_OK) { 747 struct ether_header *ehp; 748 struct mbuf *mbp; 749 u_int16_t len; 750 751 len = XE_INW(XE_RBC) - ETHER_CRC_LEN; 752 753 IFPRINTF(3, (ifp, "intr: receive length = %d\n", len)); 754 755 if (len == 0) { 756 IFNET_STAT_INC(ifp, iqdrops, 1); 757 continue; 758 } 759 760 /* 761 * Allocate mbuf to hold received packet. If the mbuf header isn't 762 * big enough, we attach an mbuf cluster to hold the packet. Note the 763 * +=2 to align the packet data on a 32-bit boundary, and the +3 to 764 * allow for the possibility of reading one more byte than the actual 765 * packet length (we always read 16-bit words). 766 * XXX - Surely there's a better way to do this alignment? 767 */ 768 MGETHDR(mbp, MB_DONTWAIT, MT_DATA); 769 if (mbp == NULL) { 770 IFNET_STAT_INC(ifp, iqdrops, 1); 771 continue; 772 } 773 774 if (len + 3 > MHLEN) { 775 MCLGET(mbp, MB_DONTWAIT); 776 if ((mbp->m_flags & M_EXT) == 0) { 777 m_freem(mbp); 778 IFNET_STAT_INC(ifp, iqdrops, 1); 779 continue; 780 } 781 } 782 783 mbp->m_data += 2; 784 ehp = mtod(mbp, struct ether_header *); 785 786 /* 787 * Now get the packet in PIO mode, including the Ethernet header but 788 * omitting the trailing CRC. 789 */ 790 791 /* 792 * Work around a bug in CE2 cards. There seems to be a problem with 793 * duplicated and extraneous bytes in the receive buffer, but without 794 * any real documentation for the CE2 it's hard to tell for sure. 795 * XXX - Needs testing on CE2 hardware 796 */ 797 if (scp->srev == 0) { 798 u_short rhs; 799 800 XE_SELECT_PAGE(5); 801 rhs = XE_INW(XE_RHSA); 802 XE_SELECT_PAGE(0); 803 804 rhs += 3; /* Skip control info */ 805 806 if (rhs >= 0x8000) 807 rhs = 0; 808 809 if (rhs + len > 0x8000) { 810 int i; 811 812 for (i = 0; i < len; i++, rhs++) { 813 ((char *)ehp)[i] = XE_INB(XE_EDP); 814 if (rhs == 0x8000) { 815 rhs = 0; 816 i--; 817 } 818 } 819 } 820 else 821 bus_space_read_multi_2(scp->bst, scp->bsh, XE_EDP, 822 (u_int16_t *) ehp, (len + 1) >> 1); 823 } 824 else 825 bus_space_read_multi_2(scp->bst, scp->bsh, XE_EDP, 826 (u_int16_t *) ehp, (len + 1) >> 1); 827 828 /* Deliver packet to upper layers */ 829 mbp->m_pkthdr.rcvif = ifp; 830 mbp->m_pkthdr.len = mbp->m_len = len; 831 ifp->if_input(ifp, mbp, NULL, -1); 832 IFNET_STAT_INC(ifp, ipackets, 1); 833 } 834 else if (rsr & XE_RSR_ALIGN_ERROR) { 835 /* Packet alignment error -- drop packet */ 836 if_printf(ifp, "alignment error\n"); 837 scp->mibdata.dot3StatsAlignmentErrors++; 838 IFNET_STAT_INC(ifp, ierrors, 1); 839 } 840 841 /* Skip to next packet, if there is one */ 842 XE_OUTW(XE_DO, 0x8000); 843 } 844 845 /* Clear receiver overruns now we have some free buffer space */ 846 if (rst0 & XE_RST0_RX_OVERRUN) { 847 IFPRINTF(1, (ifp, "receive overrun\n")); 848 IFNET_STAT_INC(ifp, ierrors, 1); 849 scp->mibdata.dot3StatsInternalMacReceiveErrors++; 850 XE_OUTB(XE_CR, XE_CR_CLEAR_OVERRUN); 851 } 852 } 853 854 /* Restore saved page */ 855 XE_SELECT_PAGE(psr); 856 857 /* Re-enable interrupts */ 858 XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); 859 } 860 861 862 /* 863 * Device timeout/watchdog routine. Called automatically if we queue a packet 864 * for transmission but don't get an interrupt within a specified timeout 865 * (usually 5 seconds). When this happens we assume the worst and reset the 866 * card. 867 */ 868 static void 869 xe_watchdog(struct ifnet *ifp) { 870 struct xe_softc *scp = ifp->if_softc; 871 872 if_printf(ifp, "watchdog timeout; resetting card\n"); 873 scp->tx_timeouts++; 874 IFNET_STAT_INC(ifp, oerrors, scp->tx_queued); 875 xe_stop(scp); 876 xe_reset(scp); 877 xe_init(scp); 878 } 879 880 881 /* 882 * Change media selection. 883 */ 884 static int 885 xe_media_change(struct ifnet *ifp) { 886 struct xe_softc *scp = ifp->if_softc; 887 888 IFPRINTF(2, (ifp, "media_change\n")); 889 890 if (IFM_TYPE(scp->ifm->ifm_media) != IFM_ETHER) 891 return(EINVAL); 892 893 /* 894 * Some card/media combos aren't always possible -- filter those out here. 895 */ 896 if ((IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_AUTO || 897 IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_100_TX) && !scp->phy_ok) 898 return (EINVAL); 899 900 xe_setmedia_serialized(scp); 901 902 return 0; 903 } 904 905 906 /* 907 * Return current media selection. 908 */ 909 static void 910 xe_media_status(struct ifnet *ifp, struct ifmediareq *mrp) { 911 912 IFPRINTF(3, (ifp, "media_status\n")); 913 914 /* XXX - This is clearly wrong. Will fix once I have CE2 working */ 915 mrp->ifm_status = IFM_AVALID | IFM_ACTIVE; 916 mrp->ifm_active = ((struct xe_softc *)ifp->if_softc)->media; 917 } 918 919 static 920 void 921 xe_setmedia(void *xscp) 922 { 923 struct xe_softc *scp = xscp; 924 925 lwkt_serialize_enter(scp->arpcom.ac_if.if_serializer); 926 xe_setmedia_serialized(xscp); 927 lwkt_serialize_exit(scp->arpcom.ac_if.if_serializer); 928 } 929 930 /* 931 * Select active media. 932 */ 933 static 934 void 935 xe_setmedia_serialized(void *xscp) 936 { 937 struct xe_softc *scp = xscp; 938 u_int16_t bmcr, bmsr, anar, lpar; 939 940 IFPRINTF(2, (scp->ifp, "setmedia\n")); 941 942 /* Cancel any pending timeout */ 943 callout_stop(&scp->xe_timer); 944 xe_disable_intr(scp); 945 946 /* Select media */ 947 scp->media = IFM_ETHER; 948 switch (IFM_SUBTYPE(scp->ifm->ifm_media)) { 949 950 case IFM_AUTO: /* Autoselect media */ 951 scp->media = IFM_ETHER|IFM_AUTO; 952 953 /* 954 * Autoselection is really awful. It goes something like this: 955 * 956 * Wait until the transmitter goes idle (2sec timeout). 957 * Reset card 958 * IF a 100Mbit PHY exists 959 * Start NWAY autonegotiation (3.5sec timeout) 960 * IF that succeeds 961 * Select 100baseTX or 10baseT, whichever was detected 962 * ELSE 963 * Reset card 964 * IF a 100Mbit PHY exists 965 * Try to force a 100baseTX link (3sec timeout) 966 * IF that succeeds 967 * Select 100baseTX 968 * ELSE 969 * Disable the PHY 970 * ENDIF 971 * ENDIF 972 * ENDIF 973 * ENDIF 974 * IF nothing selected so far 975 * IF a 100Mbit PHY exists 976 * Select 10baseT 977 * ELSE 978 * Select 10baseT or 10base2, whichever is connected 979 * ENDIF 980 * ENDIF 981 */ 982 switch (scp->autoneg_status) { 983 984 case XE_AUTONEG_NONE: 985 IFPRINTF(2, (scp->ifp, "Waiting for idle transmitter\n")); 986 ifq_set_oactive(&scp->arpcom.ac_if.if_snd); 987 scp->autoneg_status = XE_AUTONEG_WAITING; 988 /* FALL THROUGH */ 989 990 case XE_AUTONEG_WAITING: 991 if (scp->tx_queued != 0) { 992 callout_reset(&scp->xe_timer, hz / 2, xe_setmedia, scp); 993 return; 994 } 995 if (scp->phy_ok) { 996 IFPRINTF(2, (scp->ifp, "Starting autonegotiation\n")); 997 bmcr = xe_phy_readreg(scp, PHY_BMCR); 998 bmcr &= ~(PHY_BMCR_AUTONEGENBL); 999 xe_phy_writereg(scp, PHY_BMCR, bmcr); 1000 anar = xe_phy_readreg(scp, PHY_ANAR); 1001 anar &= ~(PHY_ANAR_100BT4|PHY_ANAR_100BTXFULL|PHY_ANAR_10BTFULL); 1002 anar |= PHY_ANAR_100BTXHALF|PHY_ANAR_10BTHALF; 1003 xe_phy_writereg(scp, PHY_ANAR, anar); 1004 bmcr |= PHY_BMCR_AUTONEGENBL|PHY_BMCR_AUTONEGRSTR; 1005 xe_phy_writereg(scp, PHY_BMCR, bmcr); 1006 scp->autoneg_status = XE_AUTONEG_STARTED; 1007 callout_reset(&scp->xe_timer, hz * 7 / 2, xe_setmedia, scp); 1008 return; 1009 } 1010 else { 1011 scp->autoneg_status = XE_AUTONEG_FAIL; 1012 } 1013 break; 1014 1015 case XE_AUTONEG_STARTED: 1016 bmsr = xe_phy_readreg(scp, PHY_BMSR); 1017 lpar = xe_phy_readreg(scp, PHY_LPAR); 1018 if (bmsr & (PHY_BMSR_AUTONEGCOMP|PHY_BMSR_LINKSTAT)) { 1019 IFPRINTF(2, (scp->ifp, "Autonegotiation complete!\n")); 1020 /* 1021 * XXX - Shouldn't have to do this, but (on my hub at least) the 1022 * XXX - transmitter won't work after a successful autoneg. So we see 1023 * XXX - what the negotiation result was and force that mode. I'm 1024 * XXX - sure there is an easy fix for this. 1025 */ 1026 if (lpar & PHY_LPAR_100BTXHALF) { 1027 xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); 1028 XE_MII_DUMP(scp); 1029 XE_SELECT_PAGE(2); 1030 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); 1031 scp->media = IFM_ETHER|IFM_100_TX; 1032 scp->autoneg_status = XE_AUTONEG_NONE; 1033 } 1034 else { 1035 /* 1036 * XXX - Bit of a hack going on in here. 1037 * XXX - This is derived from Ken Hughes patch to the Linux driver 1038 * XXX - to make it work with 10Mbit _autonegotiated_ links on CE3B 1039 * XXX - cards. What's a CE3B and how's it differ from a plain CE3? 1040 * XXX - these are the things we need to find out. 1041 */ 1042 xe_phy_writereg(scp, PHY_BMCR, 0x0000); 1043 XE_SELECT_PAGE(2); 1044 /* BEGIN HACK */ 1045 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); 1046 XE_SELECT_PAGE(0x42); 1047 XE_OUTB(XE_SWC1, 0x80); 1048 scp->media = IFM_ETHER|IFM_10_T; 1049 scp->autoneg_status = XE_AUTONEG_NONE; 1050 /* END HACK */ 1051 /*XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08);*/ /* Disable PHY? */ 1052 /*scp->autoneg_status = XE_AUTONEG_FAIL;*/ 1053 } 1054 } 1055 else { 1056 IFPRINTF(2, (scp->ifp, "Autonegotiation failed; trying 100baseTX\n")); 1057 XE_MII_DUMP(scp); 1058 if (scp->phy_ok) { 1059 xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); 1060 scp->autoneg_status = XE_AUTONEG_100TX; 1061 callout_reset(&scp->xe_timer, hz * 3, xe_setmedia, scp); 1062 return; 1063 } 1064 else { 1065 scp->autoneg_status = XE_AUTONEG_FAIL; 1066 } 1067 } 1068 break; 1069 1070 case XE_AUTONEG_100TX: 1071 xe_phy_readreg(scp, PHY_BMSR); 1072 bmsr = xe_phy_readreg(scp, PHY_BMSR); 1073 if (bmsr & PHY_BMSR_LINKSTAT) { 1074 IFPRINTF(2, (scp->ifp, "Got 100baseTX link!\n")); 1075 XE_MII_DUMP(scp); 1076 XE_SELECT_PAGE(2); 1077 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); 1078 scp->media = IFM_ETHER|IFM_100_TX; 1079 scp->autoneg_status = XE_AUTONEG_NONE; 1080 } 1081 else { 1082 IFPRINTF(2, (scp->ifp, "Autonegotiation failed; disabling PHY\n")); 1083 XE_MII_DUMP(scp); 1084 xe_phy_writereg(scp, PHY_BMCR, 0x0000); 1085 XE_SELECT_PAGE(2); 1086 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY? */ 1087 scp->autoneg_status = XE_AUTONEG_FAIL; 1088 } 1089 break; 1090 } 1091 1092 /* 1093 * If we got down here _and_ autoneg_status is XE_AUTONEG_FAIL, then 1094 * either autonegotiation failed, or never got started to begin with. In 1095 * either case, select a suitable 10Mbit media and hope it works. We 1096 * don't need to reset the card again, since it will have been done 1097 * already by the big switch above. 1098 */ 1099 if (scp->autoneg_status == XE_AUTONEG_FAIL) { 1100 IFPRINTF(2, (scp->ifp, "Selecting 10baseX\n")); 1101 if (scp->mohawk) { 1102 XE_SELECT_PAGE(0x42); 1103 XE_OUTB(XE_SWC1, 0x80); 1104 scp->media = IFM_ETHER|IFM_10_T; 1105 scp->autoneg_status = XE_AUTONEG_NONE; 1106 } 1107 else { 1108 XE_SELECT_PAGE(4); 1109 XE_OUTB(XE_GPR0, 4); 1110 DELAY(50000); 1111 XE_SELECT_PAGE(0x42); 1112 XE_OUTB(XE_SWC1, (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? 0x80 : 0xc0); 1113 scp->media = IFM_ETHER|((XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? IFM_10_T : IFM_10_2); 1114 scp->autoneg_status = XE_AUTONEG_NONE; 1115 } 1116 } 1117 break; 1118 1119 1120 /* 1121 * If a specific media has been requested, we just reset the card and 1122 * select it (one small exception -- if 100baseTX is requested by there is 1123 * no PHY, we fall back to 10baseT operation). 1124 */ 1125 case IFM_100_TX: /* Force 100baseTX */ 1126 if (scp->phy_ok) { 1127 IFPRINTF(2, (scp->ifp, "Selecting 100baseTX\n")); 1128 XE_SELECT_PAGE(0x42); 1129 XE_OUTB(XE_SWC1, 0); 1130 xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); 1131 XE_SELECT_PAGE(2); 1132 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); 1133 scp->media |= IFM_100_TX; 1134 break; 1135 } 1136 /* FALLTHROUGH */ 1137 1138 case IFM_10_T: /* Force 10baseT */ 1139 IFPRINTF(2, (scp->ifp, "Selecting 10baseT\n")); 1140 if (scp->phy_ok) { 1141 xe_phy_writereg(scp, PHY_BMCR, 0x0000); 1142 XE_SELECT_PAGE(2); 1143 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY */ 1144 } 1145 XE_SELECT_PAGE(0x42); 1146 XE_OUTB(XE_SWC1, 0x80); 1147 scp->media |= IFM_10_T; 1148 break; 1149 1150 case IFM_10_2: 1151 IFPRINTF(2, (scp->ifp, "Selecting 10base2\n")); 1152 XE_SELECT_PAGE(0x42); 1153 XE_OUTB(XE_SWC1, 0xc0); 1154 scp->media |= IFM_10_2; 1155 break; 1156 } 1157 1158 1159 /* 1160 * Finally, the LEDs are set to match whatever media was chosen and the 1161 * transmitter is unblocked. 1162 */ 1163 IFPRINTF(2, (scp->ifp, "Setting LEDs\n")); 1164 XE_SELECT_PAGE(2); 1165 switch (IFM_SUBTYPE(scp->media)) { 1166 case IFM_100_TX: 1167 case IFM_10_T: 1168 XE_OUTB(XE_LED, 0x3b); 1169 if (scp->dingo) 1170 XE_OUTB(0x0b, 0x04); /* 100Mbit LED */ 1171 break; 1172 1173 case IFM_10_2: 1174 XE_OUTB(XE_LED, 0x3a); 1175 break; 1176 } 1177 1178 /* Restart output? */ 1179 xe_enable_intr(scp); 1180 ifq_clr_oactive(&scp->ifp->if_snd); 1181 if_devstart(scp->ifp); 1182 } 1183 1184 1185 /* 1186 * Hard reset (power cycle) the card. 1187 */ 1188 static void 1189 xe_reset(struct xe_softc *scp) { 1190 IFPRINTF(2, (scp->ifp, "hard_reset\n")); 1191 1192 crit_enter(); 1193 1194 /* Power down */ 1195 XE_SELECT_PAGE(4); 1196 XE_OUTB(XE_GPR1, 0); 1197 DELAY(40000); 1198 1199 /* Power up again */ 1200 if (scp->mohawk) 1201 XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN); 1202 else 1203 XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN|XE_GPR1_AIC); 1204 1205 DELAY(40000); 1206 XE_SELECT_PAGE(0); 1207 1208 crit_exit(); 1209 } 1210 1211 1212 /* 1213 * Take interface offline. This is done by powering down the device, which I 1214 * assume means just shutting down the transceiver and Ethernet logic. This 1215 * requires a _hard_ reset to recover from, as we need to power up again. 1216 */ 1217 static void 1218 xe_stop(struct xe_softc *scp) { 1219 IFPRINTF(2, (scp->ifp, "stop\n")); 1220 1221 crit_enter(); 1222 1223 /* 1224 * Shut off interrupts. 1225 */ 1226 xe_disable_intr(scp); 1227 1228 /* 1229 * Power down. 1230 */ 1231 XE_SELECT_PAGE(4); 1232 XE_OUTB(XE_GPR1, 0); 1233 XE_SELECT_PAGE(0); 1234 if (scp->mohawk) { 1235 /* 1236 * set GP1 and GP2 as outputs (bits 2 & 3) 1237 * set GP1 high to power on the ML6692 (bit 0) 1238 * set GP2 low to power on the 10Mhz chip (bit 1) 1239 */ 1240 XE_SELECT_PAGE(4); 1241 XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT|XE_GPR0_GP1_SELECT|XE_GPR0_GP1_OUT); 1242 } 1243 1244 /* 1245 * ~IFF_RUNNING == interface down. 1246 */ 1247 scp->ifp->if_flags &= ~IFF_RUNNING; 1248 ifq_clr_oactive(&scp->ifp->if_snd); 1249 scp->ifp->if_timer = 0; 1250 1251 crit_exit(); 1252 } 1253 1254 1255 /* 1256 * Enable interrupts from the card. 1257 */ 1258 static void 1259 xe_enable_intr(struct xe_softc *scp) { 1260 IFPRINTF(2, (scp->ifp, "enable_intr\n")); 1261 1262 XE_SELECT_PAGE(0); 1263 XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Enable interrupts */ 1264 if (scp->modem && !scp->dingo) { /* This bit is just magic */ 1265 if (!(XE_INB(0x10) & 0x01)) { 1266 XE_OUTB(0x10, 0x11); /* Unmask master int enable bit */ 1267 } 1268 } 1269 } 1270 1271 1272 /* 1273 * Disable interrupts from the card. 1274 */ 1275 static void 1276 xe_disable_intr(struct xe_softc *scp) { 1277 IFPRINTF(2, (scp->ifp, "disable_intr\n")); 1278 1279 XE_SELECT_PAGE(0); 1280 XE_OUTB(XE_CR, 0); /* Disable interrupts */ 1281 if (scp->modem && !scp->dingo) { /* More magic */ 1282 XE_OUTB(0x10, 0x10); /* Mask the master int enable bit */ 1283 } 1284 } 1285 1286 1287 /* 1288 * Set up multicast filter and promiscuous modes. 1289 */ 1290 static void 1291 xe_set_multicast(struct xe_softc *scp) { 1292 struct ifnet *ifp; 1293 struct ifmultiaddr *ifma; 1294 u_int count, i; 1295 1296 ifp = &scp->arpcom.ac_if; 1297 1298 IFPRINTF(2, (ifp, "set_multicast\n")); 1299 1300 XE_SELECT_PAGE(0x42); 1301 1302 /* Handle PROMISC flag */ 1303 if (ifp->if_flags & IFF_PROMISC) { 1304 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_PROMISCUOUS); 1305 return; 1306 } 1307 else 1308 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_PROMISCUOUS); 1309 1310 /* Handle ALLMULTI flag */ 1311 if (ifp->if_flags & IFF_ALLMULTI) { 1312 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_ALLMULTI); 1313 return; 1314 } 1315 else 1316 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI); 1317 1318 /* Iterate over multicast address list */ 1319 count = 0; 1320 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1321 if (ifma->ifma_addr->sa_family != AF_LINK) 1322 continue; 1323 1324 count++; 1325 1326 if (count < 10) 1327 /* First 9 use Individual Addresses for exact matching */ 1328 xe_set_addr(scp, LLADDR((struct sockaddr_dl *)ifma->ifma_addr), count); 1329 else 1330 if (scp->mohawk) 1331 /* Use hash filter on Mohawk and Dingo */ 1332 xe_set_hash(scp, LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 1333 else 1334 /* Nowhere else to put them on CE2 */ 1335 break; 1336 } 1337 1338 IFPRINTF(2, (ifp, "set_multicast: count = %u\n", count)); 1339 1340 /* Now do some cleanup and enable multicast handling as needed */ 1341 if (count == 0) { 1342 /* Disable all multicast handling */ 1343 1344 XE_SELECT_PAGE(0x42); 1345 XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~(XE_SWC1_IA_ENABLE|XE_SWC1_ALLMULTI)); 1346 if (scp->mohawk) { 1347 XE_SELECT_PAGE(0x02); 1348 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE); 1349 } 1350 } 1351 else if (count < 10) { 1352 /* Full in any unused Individual Addresses with our MAC address */ 1353 for (i = count + 1; i < 10; i++) 1354 xe_set_addr(scp, (u_int8_t *)(&scp->arpcom.ac_enaddr), i); 1355 /* Enable Individual Address matching only */ 1356 XE_SELECT_PAGE(0x42); 1357 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) | XE_SWC1_IA_ENABLE); 1358 if (scp->mohawk) { 1359 XE_SELECT_PAGE(0x02); 1360 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE); 1361 } 1362 } 1363 else { 1364 if (scp->mohawk) { 1365 /* Check whether hash table is full */ 1366 XE_SELECT_PAGE(0x58); 1367 for (i = 0x08; i < 0x10; i++) 1368 if (XE_INB(i) != 0xff) 1369 break; 1370 if (i == 0x10) { 1371 /* Hash table full - enable promiscuous multicast matching */ 1372 XE_SELECT_PAGE(0x42); 1373 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_IA_ENABLE) | XE_SWC1_ALLMULTI); 1374 XE_SELECT_PAGE(0x02); 1375 XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE); 1376 } 1377 else { 1378 /* Enable hash table and Individual Address matching */ 1379 XE_SELECT_PAGE(0x42); 1380 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) | XE_SWC1_IA_ENABLE); 1381 XE_SELECT_PAGE(0x02); 1382 XE_OUTB(XE_MSR, XE_INB(XE_MSR) | XE_MSR_HASH_TABLE); 1383 } 1384 } 1385 else { 1386 /* Enable promiscuous multicast matching */ 1387 XE_SELECT_PAGE(0x42); 1388 XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_IA_ENABLE) | XE_SWC1_ALLMULTI); 1389 } 1390 } 1391 XE_SELECT_PAGE(0); 1392 } 1393 1394 1395 /* 1396 * Copy the Ethernet multicast address in addr to the on-chip registers for 1397 * Individual Address idx. Assumes that addr is really a multicast address 1398 * and that idx > 0 (slot 0 is always used for the card MAC address). 1399 */ 1400 static void 1401 xe_set_addr(struct xe_softc *scp, u_int8_t* addr, unsigned idx) { 1402 uint8_t page, reg; 1403 u_int i; 1404 1405 /* 1406 * Individual Addresses are stored in registers 8-F of pages 0x50-0x57. IA1 1407 * therefore starts at register 0xE on page 0x50. The expressions below 1408 * compute the starting page and register for any IA index > 0. 1409 */ 1410 --idx; 1411 page = 0x50 + idx%4 + idx/4*3; 1412 reg = 0x0e - 2 * (idx%4); 1413 1414 IFPRINTF(3, (scp->ifp, "set_addr: idx = %u, page = 0x%02x, reg = 0x%02x\n", 1415 idx+1, page, reg)); 1416 1417 /* 1418 * Copy the IA bytes. Note that the byte order is reversed for Mohawk and 1419 * Dingo wrt. CE2 hardware. 1420 */ 1421 XE_SELECT_PAGE(page); 1422 for (i = 0; i < 6; i++) { 1423 #ifdef XE_DEBUG 1424 if (i > 0) { 1425 DPRINTF(3, (":%02x", addr[i])); 1426 } else { 1427 IFPRINTF(3, (scp->ifp, "set_addr: %02x", addr[0])); 1428 } 1429 #endif 1430 XE_OUTB(reg, addr[scp->mohawk ? 5 - i : i]); 1431 if (++reg == 0x10) { 1432 reg = 0x08; 1433 XE_SELECT_PAGE(++page); 1434 } 1435 } 1436 DPRINTF(3, ("\n")); 1437 } 1438 1439 1440 /* 1441 * Set the appropriate bit in the multicast hash table for the supplied 1442 * Ethernet multicast address addr. Assumes that addr is really a multicast 1443 * address. 1444 */ 1445 static void 1446 xe_set_hash(struct xe_softc* scp, u_int8_t* addr) { 1447 u_int32_t crc = 0xffffffff; 1448 u_int8_t bit, byte, crc31, idx; 1449 u_int i, j; 1450 1451 /* Compute CRC of the address -- standard Ethernet CRC function */ 1452 for (i = 0; i < 6; i++) { 1453 byte = addr[i]; 1454 for (j = 1; j <= 8; j++) { 1455 if (crc & 0x80000000) 1456 crc31 = 0x01; 1457 else 1458 crc31 = 0; 1459 bit = crc31 ^ (byte & 0x01); 1460 crc <<= 1; 1461 byte >>= 1; 1462 if (bit) 1463 crc = (crc ^ XE_CRC_POLY)|1; 1464 } 1465 } 1466 1467 IFPRINTF(3, (scp->ifp, "set_hash: CRC = 0x%08x\n", crc)); 1468 1469 /* Hash table index = 6 msbs of CRC, reversed */ 1470 for (i = 0, idx = 0; i < 6; i++) { 1471 idx >>= 1; 1472 if (crc & 0x80000000) { 1473 idx |= 0x20; 1474 } 1475 crc <<= 1; 1476 } 1477 1478 /* Top 3 bits of idx give register - 8, bottom 3 give bit within register */ 1479 byte = idx >> 3 | 0x08; 1480 bit = 0x01 << (idx & 0x07); 1481 1482 IFPRINTF(3, (scp->ifp, 1483 "set_hash: idx = 0x%02x, byte = 0x%02x, bit = 0x%02x\n", 1484 idx, byte, bit)); 1485 1486 XE_SELECT_PAGE(0x58); 1487 XE_OUTB(byte, XE_INB(byte) | bit); 1488 } 1489 1490 1491 /* 1492 * Write an outgoing packet to the card using programmed I/O. 1493 */ 1494 static int 1495 xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp) { 1496 u_int len, pad; 1497 u_char wantbyte; 1498 u_int8_t *data; 1499 u_int8_t savebyte[2]; 1500 1501 /* Get total packet length */ 1502 if (mbp->m_flags & M_PKTHDR) 1503 len = mbp->m_pkthdr.len; 1504 else { 1505 struct mbuf* mbp2 = mbp; 1506 for (len = 0; mbp2 != NULL; len += mbp2->m_len, mbp2 = mbp2->m_next); 1507 } 1508 1509 IFPRINTF(3, (scp->ifp, "pio_write_packet: len = %u\n", len)); 1510 1511 /* Packets < minimum length may need to be padded out */ 1512 pad = 0; 1513 if (len < scp->tx_min) { 1514 pad = scp->tx_min - len; 1515 len = scp->tx_min; 1516 } 1517 1518 /* Check transmit buffer space */ 1519 XE_SELECT_PAGE(0); 1520 XE_OUTW(XE_TRS, len+2); /* Only effective on rev. 1 CE2 cards */ 1521 if ((XE_INW(XE_TSO) & 0x7fff) <= len + 2) 1522 return 1; 1523 1524 /* Send packet length to card */ 1525 XE_OUTW(XE_EDP, len); 1526 1527 /* 1528 * Write packet to card using PIO (code stolen from the ed driver) 1529 */ 1530 wantbyte = 0; 1531 while (mbp != NULL) { 1532 len = mbp->m_len; 1533 if (len > 0) { 1534 data = mtod(mbp, caddr_t); 1535 if (wantbyte) { /* Finish the last word */ 1536 savebyte[1] = *data; 1537 XE_OUTW(XE_EDP, *(u_short *)savebyte); 1538 data++; 1539 len--; 1540 wantbyte = 0; 1541 } 1542 if (len > 1) { /* Output contiguous words */ 1543 bus_space_write_multi_2(scp->bst, scp->bsh, XE_EDP, (u_int16_t *) data, 1544 len >> 1); 1545 data += len & ~1; 1546 len &= 1; 1547 } 1548 if (len == 1) { /* Save last byte, if necessary */ 1549 savebyte[0] = *data; 1550 wantbyte = 1; 1551 } 1552 } 1553 mbp = mbp->m_next; 1554 } 1555 1556 /* 1557 * Send last byte of odd-length packets 1558 */ 1559 if (wantbyte) 1560 XE_OUTB(XE_EDP, savebyte[0]); 1561 1562 /* 1563 * Can just tell CE3 cards to send; short packets will be padded out with 1564 * random cruft automatically. For CE2, manually pad the packet with 1565 * garbage; it will be sent when the required number or bytes have been 1566 * delivered to the card. 1567 */ 1568 if (scp->mohawk) 1569 XE_OUTB(XE_CR, XE_CR_TX_PACKET | XE_CR_RESTART_TX | XE_CR_ENABLE_INTR); 1570 else if (pad > 0) { 1571 if (pad & 0x01) 1572 XE_OUTB(XE_EDP, 0xaa); 1573 pad >>= 1; 1574 while (pad > 0) { 1575 XE_OUTW(XE_EDP, 0xdead); 1576 pad--; 1577 } 1578 } 1579 1580 return 0; 1581 } 1582 1583 1584 /************************************************************** 1585 * * 1586 * M I I F U N C T I O N S * 1587 * * 1588 **************************************************************/ 1589 1590 /* 1591 * Alternative MII/PHY handling code adapted from the xl driver. It doesn't 1592 * seem to work any better than the xirc2_ps stuff, but it's cleaner code. 1593 * XXX - this stuff shouldn't be here. It should all be abstracted off to 1594 * XXX - some kind of common MII-handling code, shared by all drivers. But 1595 * XXX - that's a whole other mission. 1596 */ 1597 #define XE_MII_SET(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) | (x)) 1598 #define XE_MII_CLR(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) & ~(x)) 1599 1600 1601 /* 1602 * Sync the PHYs by setting data bit and strobing the clock 32 times. 1603 */ 1604 static void 1605 xe_mii_sync(struct xe_softc *scp) { 1606 int i; 1607 1608 XE_SELECT_PAGE(2); 1609 XE_MII_SET(XE_MII_DIR|XE_MII_WRD); 1610 1611 for (i = 0; i < 32; i++) { 1612 XE_MII_SET(XE_MII_CLK); 1613 DELAY(1); 1614 XE_MII_CLR(XE_MII_CLK); 1615 DELAY(1); 1616 } 1617 } 1618 1619 1620 /* 1621 * Look for a MII-compliant PHY. If we find one, reset it. 1622 */ 1623 static int 1624 xe_mii_init(struct xe_softc *scp) { 1625 u_int16_t status; 1626 1627 status = xe_phy_readreg(scp, PHY_BMSR); 1628 if ((status & 0xff00) != 0x7800) { 1629 IFPRINTF(2, (scp->ifp, "no PHY found, %0x\n", status)); 1630 return 0; 1631 } 1632 else { 1633 IFPRINTF(2, (scp->ifp, "PHY OK!\n")); 1634 1635 /* Reset the PHY */ 1636 xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_RESET); 1637 DELAY(500); 1638 while(xe_phy_readreg(scp, PHY_BMCR) & PHY_BMCR_RESET); 1639 XE_MII_DUMP(scp); 1640 return 1; 1641 } 1642 } 1643 1644 1645 /* 1646 * Clock a series of bits through the MII. 1647 */ 1648 static void 1649 xe_mii_send(struct xe_softc *scp, u_int32_t bits, int cnt) { 1650 int i; 1651 1652 XE_SELECT_PAGE(2); 1653 XE_MII_CLR(XE_MII_CLK); 1654 1655 for (i = (0x1 << (cnt - 1)); i; i >>= 1) { 1656 if (bits & i) { 1657 XE_MII_SET(XE_MII_WRD); 1658 } else { 1659 XE_MII_CLR(XE_MII_WRD); 1660 } 1661 DELAY(1); 1662 XE_MII_CLR(XE_MII_CLK); 1663 DELAY(1); 1664 XE_MII_SET(XE_MII_CLK); 1665 } 1666 } 1667 1668 1669 /* 1670 * Read an PHY register through the MII. 1671 */ 1672 static int 1673 xe_mii_readreg(struct xe_softc *scp, struct xe_mii_frame *frame) { 1674 int i, ack; 1675 1676 crit_enter(); 1677 1678 /* 1679 * Set up frame for RX. 1680 */ 1681 frame->mii_stdelim = XE_MII_STARTDELIM; 1682 frame->mii_opcode = XE_MII_READOP; 1683 frame->mii_turnaround = 0; 1684 frame->mii_data = 0; 1685 1686 XE_SELECT_PAGE(2); 1687 XE_OUTB(XE_GPR2, 0); 1688 1689 /* 1690 * Turn on data xmit. 1691 */ 1692 XE_MII_SET(XE_MII_DIR); 1693 1694 xe_mii_sync(scp); 1695 1696 /* 1697 * Send command/address info. 1698 */ 1699 xe_mii_send(scp, frame->mii_stdelim, 2); 1700 xe_mii_send(scp, frame->mii_opcode, 2); 1701 xe_mii_send(scp, frame->mii_phyaddr, 5); 1702 xe_mii_send(scp, frame->mii_regaddr, 5); 1703 1704 /* Idle bit */ 1705 XE_MII_CLR((XE_MII_CLK|XE_MII_WRD)); 1706 DELAY(1); 1707 XE_MII_SET(XE_MII_CLK); 1708 DELAY(1); 1709 1710 /* Turn off xmit. */ 1711 XE_MII_CLR(XE_MII_DIR); 1712 1713 /* Check for ack */ 1714 XE_MII_CLR(XE_MII_CLK); 1715 DELAY(1); 1716 ack = XE_INB(XE_GPR2) & XE_MII_RDD; 1717 XE_MII_SET(XE_MII_CLK); 1718 DELAY(1); 1719 1720 /* 1721 * Now try reading data bits. If the ack failed, we still 1722 * need to clock through 16 cycles to keep the PHY(s) in sync. 1723 */ 1724 if (ack) { 1725 for(i = 0; i < 16; i++) { 1726 XE_MII_CLR(XE_MII_CLK); 1727 DELAY(1); 1728 XE_MII_SET(XE_MII_CLK); 1729 DELAY(1); 1730 } 1731 goto fail; 1732 } 1733 1734 for (i = 0x8000; i; i >>= 1) { 1735 XE_MII_CLR(XE_MII_CLK); 1736 DELAY(1); 1737 if (!ack) { 1738 if (XE_INB(XE_GPR2) & XE_MII_RDD) 1739 frame->mii_data |= i; 1740 DELAY(1); 1741 } 1742 XE_MII_SET(XE_MII_CLK); 1743 DELAY(1); 1744 } 1745 1746 fail: 1747 1748 XE_MII_CLR(XE_MII_CLK); 1749 DELAY(1); 1750 XE_MII_SET(XE_MII_CLK); 1751 DELAY(1); 1752 1753 crit_exit(); 1754 1755 if (ack) 1756 return(1); 1757 return(0); 1758 } 1759 1760 1761 /* 1762 * Write to a PHY register through the MII. 1763 */ 1764 static int 1765 xe_mii_writereg(struct xe_softc *scp, struct xe_mii_frame *frame) { 1766 1767 crit_enter(); 1768 1769 /* 1770 * Set up frame for TX. 1771 */ 1772 frame->mii_stdelim = XE_MII_STARTDELIM; 1773 frame->mii_opcode = XE_MII_WRITEOP; 1774 frame->mii_turnaround = XE_MII_TURNAROUND; 1775 1776 XE_SELECT_PAGE(2); 1777 1778 /* 1779 * Turn on data output. 1780 */ 1781 XE_MII_SET(XE_MII_DIR); 1782 1783 xe_mii_sync(scp); 1784 1785 xe_mii_send(scp, frame->mii_stdelim, 2); 1786 xe_mii_send(scp, frame->mii_opcode, 2); 1787 xe_mii_send(scp, frame->mii_phyaddr, 5); 1788 xe_mii_send(scp, frame->mii_regaddr, 5); 1789 xe_mii_send(scp, frame->mii_turnaround, 2); 1790 xe_mii_send(scp, frame->mii_data, 16); 1791 1792 /* Idle bit. */ 1793 XE_MII_SET(XE_MII_CLK); 1794 DELAY(1); 1795 XE_MII_CLR(XE_MII_CLK); 1796 DELAY(1); 1797 1798 /* 1799 * Turn off xmit. 1800 */ 1801 XE_MII_CLR(XE_MII_DIR); 1802 1803 crit_exit(); 1804 1805 return(0); 1806 } 1807 1808 1809 /* 1810 * Read a register from the PHY. 1811 */ 1812 static u_int16_t 1813 xe_phy_readreg(struct xe_softc *scp, u_int16_t reg) { 1814 struct xe_mii_frame frame; 1815 1816 bzero((char *)&frame, sizeof(frame)); 1817 1818 frame.mii_phyaddr = 0; 1819 frame.mii_regaddr = reg; 1820 xe_mii_readreg(scp, &frame); 1821 1822 return(frame.mii_data); 1823 } 1824 1825 1826 /* 1827 * Write to a PHY register. 1828 */ 1829 static void 1830 xe_phy_writereg(struct xe_softc *scp, u_int16_t reg, u_int16_t data) { 1831 struct xe_mii_frame frame; 1832 1833 bzero((char *)&frame, sizeof(frame)); 1834 1835 frame.mii_phyaddr = 0; 1836 frame.mii_regaddr = reg; 1837 frame.mii_data = data; 1838 xe_mii_writereg(scp, &frame); 1839 1840 return; 1841 } 1842 1843 1844 /* 1845 * A bit of debugging code. 1846 */ 1847 static void 1848 xe_mii_dump(struct xe_softc *scp) { 1849 int i; 1850 1851 crit_enter(); 1852 1853 if_printf(scp->ifp, "MII registers: "); 1854 for (i = 0; i < 2; i++) { 1855 kprintf(" %d:%04x", i, xe_phy_readreg(scp, i)); 1856 } 1857 for (i = 4; i < 7; i++) { 1858 kprintf(" %d:%04x", i, xe_phy_readreg(scp, i)); 1859 } 1860 kprintf("\n"); 1861 1862 crit_exit(); 1863 } 1864 1865 static void 1866 xe_reg_dump(struct xe_softc *scp) { 1867 int page, i; 1868 1869 crit_enter(); 1870 1871 if_printf(scp->ifp, "Common registers: "); 1872 for (i = 0; i < 8; i++) { 1873 kprintf(" %2.2x", XE_INB(i)); 1874 } 1875 kprintf("\n"); 1876 1877 for (page = 0; page <= 8; page++) { 1878 if_printf(scp->ifp, "Register page %2.2x: ", page); 1879 XE_SELECT_PAGE(page); 1880 for (i = 8; i < 16; i++) { 1881 kprintf(" %2.2x", XE_INB(i)); 1882 } 1883 kprintf("\n"); 1884 } 1885 1886 for (page = 0x10; page < 0x5f; page++) { 1887 if ((page >= 0x11 && page <= 0x3f) || 1888 (page == 0x41) || 1889 (page >= 0x43 && page <= 0x4f) || 1890 (page >= 0x59)) 1891 continue; 1892 if_printf(scp->ifp, "Register page %2.2x: ", page); 1893 XE_SELECT_PAGE(page); 1894 for (i = 8; i < 16; i++) { 1895 kprintf(" %2.2x", XE_INB(i)); 1896 } 1897 kprintf("\n"); 1898 } 1899 1900 crit_exit(); 1901 } 1902 1903 int 1904 xe_activate(device_t dev) 1905 { 1906 struct xe_softc *sc = device_get_softc(dev); 1907 int start, i; 1908 1909 DEVPRINTF(2, (dev, "activate\n")); 1910 1911 if (!sc->modem) { 1912 sc->port_rid = 0; /* 0 is managed by pccard */ 1913 sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 1914 &sc->port_rid, 0, ~0, 16, RF_ACTIVE); 1915 } else if (sc->dingo) { 1916 /* 1917 * Find a 16 byte aligned ioport for the card. 1918 */ 1919 DEVPRINTF(1, (dev, "Finding an aligned port for RealPort\n")); 1920 sc->port_rid = 1; /* 0 is managed by pccard */ 1921 start = 0x100; 1922 do { 1923 sc->port_res = bus_alloc_resource(dev, 1924 SYS_RES_IOPORT, &sc->port_rid, start, 0x3ff, 16, 1925 RF_ACTIVE); 1926 if (sc->port_res == 0) 1927 break; /* we failed */ 1928 if ((rman_get_start(sc->port_res) & 0xf) == 0) 1929 break; /* good */ 1930 bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid, 1931 sc->port_res); 1932 start = (rman_get_start(sc->port_res) + 15) & ~0xf; 1933 } while (1); 1934 DEVPRINTF(1, (dev, "RealPort port 0x%0lx, size 0x%0lx\n", 1935 bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid), 1936 bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid))); 1937 } 1938 else if (sc->ce2) { 1939 /* 1940 * Find contiguous I/O port for the Ethernet function on CEM2 and 1941 * CEM3 cards. We allocate window 0 wherever pccard has decided 1942 * it should be, then find an available window adjacent to it for 1943 * the second function. Not sure that both windows are actually 1944 * needed. 1945 */ 1946 DEVPRINTF(1, (dev, "Finding I/O port for CEM2/CEM3\n")); 1947 sc->ce2_port_rid = 0; /* 0 is managed by pccard */ 1948 sc->ce2_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 1949 &sc->ce2_port_rid, 0, ~0, 1950 8, RF_ACTIVE); 1951 if (!sc->ce2_port_res) { 1952 device_printf(dev, "Cannot allocate I/O port for modem\n"); 1953 return ENOMEM; 1954 } 1955 1956 sc->port_rid = 1; 1957 start = bus_get_resource_start(dev, SYS_RES_IOPORT, 1958 sc->ce2_port_rid); 1959 for (i = 0; i < 2; i++) { 1960 start += (i == 0 ? 8 : -24); 1961 sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, 1962 &sc->port_rid, start, 1963 start + 18, 18, RF_ACTIVE); 1964 if (sc->port_res == 0) 1965 continue; /* Failed, try again if possible */ 1966 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 1967 sc->port_rid) == start) 1968 break; /* Success! */ 1969 1970 bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid, 1971 sc->port_res); 1972 sc->port_res = 0; 1973 } 1974 DEVPRINTF(1, (dev, "CEM2/CEM3 port 0x%0lx, size 0x%0lx\n", 1975 bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid), 1976 bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid))); 1977 } 1978 if (!sc->port_res) { 1979 device_printf(dev, "Cannot allocate ioport\n"); 1980 return ENOMEM; 1981 } 1982 1983 sc->irq_rid = 0; 1984 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 1985 RF_ACTIVE); 1986 if (!sc->irq_res) { 1987 device_printf(dev, "Cannot allocate irq\n"); 1988 xe_deactivate(dev); 1989 return ENOMEM; 1990 } 1991 1992 sc->bst = rman_get_bustag(sc->port_res); 1993 sc->bsh = rman_get_bushandle(sc->port_res); 1994 return (0); 1995 } 1996 1997 void 1998 xe_deactivate(device_t dev) 1999 { 2000 struct xe_softc *sc = device_get_softc(dev); 2001 2002 DEVPRINTF(2, (dev, "deactivate\n")); 2003 xe_disable_intr(sc); 2004 2005 if (sc->port_res) 2006 bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid, 2007 sc->port_res); 2008 sc->port_res = 0; 2009 if (sc->ce2_port_res) 2010 bus_release_resource(dev, SYS_RES_IOPORT, sc->ce2_port_rid, 2011 sc->ce2_port_res); 2012 sc->ce2_port_res = 0; 2013 if (sc->irq_res) 2014 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, 2015 sc->irq_res); 2016 sc->irq_res = 0; 2017 } 2018