| 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 | * $DragonFly: src/sys/dev/netif/xe/if_xe.c,v 1.30 2005/11/28 17:13:44 dillon Exp $ |
| 29 | */ |
| 30 | |
| 31 | /* |
| 32 | * Portions of this software were derived from Werner Koch's xirc2ps driver |
| 33 | * for Linux under the terms of the following license (from v1.30 of the |
| 34 | * xirc2ps driver): |
| 35 | * |
| 36 | * Copyright (c) 1997 by Werner Koch (dd9jn) |
| 37 | * |
| 38 | * Redistribution and use in source and binary forms, with or without |
| 39 | * modification, are permitted provided that the following conditions |
| 40 | * are met: |
| 41 | * 1. Redistributions of source code must retain the above copyright |
| 42 | * notice, and the entire permission notice in its entirety, |
| 43 | * including the disclaimer of warranties. |
| 44 | * 2. Redistributions in binary form must reproduce the above copyright |
| 45 | * notice, this list of conditions and the following disclaimer in the |
| 46 | * documentation and/or other materials provided with the distribution. |
| 47 | * 3. The name of the author may not be used to endorse or promote |
| 48 | * products derived from this software without specific prior |
| 49 | * written permission. |
| 50 | * |
| 51 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 52 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 53 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 54 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
| 55 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 56 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 57 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 58 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 59 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 60 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 61 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 62 | */ |
| 63 | |
| 64 | /* |
| 65 | * FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The |
| 66 | * following cards are currently known to work with the driver: |
| 67 | * Xircom CreditCard 10/100 (CE3) |
| 68 | * Xircom CreditCard Ethernet + Modem 28 (CEM28) |
| 69 | * Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56) |
| 70 | * Xircom RealPort Ethernet 10 |
| 71 | * Xircom RealPort Ethernet 10/100 |
| 72 | * Xircom RealPort Ethernet 10/100 + Modem 56 (REM56, REM56G) |
| 73 | * Intel EtherExpress Pro/100 PC Card Mobile Adapter 16 (Pro/100 M16A) |
| 74 | * Compaq Netelligent 10/100 PC Card (CPQ-10/100) |
| 75 | * |
| 76 | * Some other cards *should* work, but support for them is either broken or in |
| 77 | * an unknown state at the moment. I'm always interested in hearing from |
| 78 | * people who own any of these cards: |
| 79 | * Xircom CreditCard 10Base-T (PS-CE2-10) |
| 80 | * Xircom CreditCard Ethernet + ModemII (CEM2) |
| 81 | * Xircom CEM28 and CEM33 Ethernet/Modem cards (may be variants of CEM2?) |
| 82 | * |
| 83 | * Thanks to all who assisted with the development and testing of the driver, |
| 84 | * especially: Werner Koch, Duke Kamstra, Duncan Barclay, Jason George, Dru |
| 85 | * Nelson, Mike Kephart, Bill Rainey and Douglas Rand. Apologies if I've left |
| 86 | * out anyone who deserves a mention here. |
| 87 | * |
| 88 | * Special thanks to Ade Lovett for both hosting the mailing list and doing |
| 89 | * the CEM56/REM56 support code; and the FreeBSD UK Users' Group for hosting |
| 90 | * the web pages. |
| 91 | * |
| 92 | * Author email: <scott@uk.freebsd.org> |
| 93 | * Driver web page: http://ukug.uk.freebsd.org/~scott/xe_drv/ |
| 94 | */ |
| 95 | |
| 96 | |
| 97 | #include <sys/param.h> |
| 98 | #include <sys/cdefs.h> |
| 99 | #include <sys/errno.h> |
| 100 | #include <sys/kernel.h> |
| 101 | #include <sys/mbuf.h> |
| 102 | #include <sys/select.h> |
| 103 | #include <sys/socket.h> |
| 104 | #include <sys/sockio.h> |
| 105 | #include <sys/sysctl.h> |
| 106 | #include <sys/systm.h> |
| 107 | #include <sys/uio.h> |
| 108 | #include <sys/serialize.h> |
| 109 | #include <sys/thread2.h> |
| 110 | |
| 111 | #include <sys/module.h> |
| 112 | #include <sys/bus.h> |
| 113 | |
| 114 | #include <machine/bus.h> |
| 115 | #include <machine/resource.h> |
| 116 | #include <sys/rman.h> |
| 117 | |
| 118 | #include <net/ethernet.h> |
| 119 | #include <net/if.h> |
| 120 | #include <net/ifq_var.h> |
| 121 | #include <net/if_arp.h> |
| 122 | #include <net/if_dl.h> |
| 123 | #include <net/if_media.h> |
| 124 | #include <net/if_mib.h> |
| 125 | #include <net/bpf.h> |
| 126 | |
| 127 | #include "if_xereg.h" |
| 128 | #include "if_xevar.h" |
| 129 | |
| 130 | /* |
| 131 | * MII command structure |
| 132 | */ |
| 133 | struct xe_mii_frame { |
| 134 | u_int8_t mii_stdelim; |
| 135 | u_int8_t mii_opcode; |
| 136 | u_int8_t mii_phyaddr; |
| 137 | u_int8_t mii_regaddr; |
| 138 | u_int8_t mii_turnaround; |
| 139 | u_int16_t mii_data; |
| 140 | }; |
| 141 | |
| 142 | /* |
| 143 | * Media autonegotiation progress constants |
| 144 | */ |
| 145 | #define XE_AUTONEG_NONE 0 /* No autonegotiation in progress */ |
| 146 | #define XE_AUTONEG_WAITING 1 /* Waiting for transmitter to go idle */ |
| 147 | #define XE_AUTONEG_STARTED 2 /* Waiting for autonegotiation to complete */ |
| 148 | #define XE_AUTONEG_100TX 3 /* Trying to force 100baseTX link */ |
| 149 | #define XE_AUTONEG_FAIL 4 /* Autonegotiation failed */ |
| 150 | |
| 151 | /* |
| 152 | * Multicast hashing CRC constants |
| 153 | */ |
| 154 | #define XE_CRC_POLY 0x04c11db6 |
| 155 | |
| 156 | /* |
| 157 | * Prototypes start here |
| 158 | */ |
| 159 | static void xe_init (void *xscp); |
| 160 | static void xe_intr (void *xscp); |
| 161 | static void xe_start (struct ifnet *ifp); |
| 162 | static int xe_ioctl (struct ifnet *ifp, u_long command, caddr_t data, struct ucred *); |
| 163 | static void xe_watchdog (struct ifnet *ifp); |
| 164 | static int xe_media_change (struct ifnet *ifp); |
| 165 | static void xe_media_status (struct ifnet *ifp, struct ifmediareq *mrp); |
| 166 | static timeout_t xe_setmedia; |
| 167 | static timeout_t xe_setmedia_serialized; |
| 168 | static void xe_reset (struct xe_softc *scp); |
| 169 | static void xe_stop (struct xe_softc *scp); |
| 170 | static void xe_enable_intr (struct xe_softc *scp); |
| 171 | static void xe_disable_intr (struct xe_softc *scp); |
| 172 | static void xe_set_multicast (struct xe_softc *scp); |
| 173 | static void xe_set_addr (struct xe_softc *scp, u_int8_t* addr, unsigned idx); |
| 174 | static void xe_set_hash (struct xe_softc *scp, u_int8_t* addr); |
| 175 | static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp); |
| 176 | |
| 177 | /* |
| 178 | * MII functions |
| 179 | */ |
| 180 | static void xe_mii_sync (struct xe_softc *scp); |
| 181 | static int xe_mii_init (struct xe_softc *scp); |
| 182 | static void xe_mii_send (struct xe_softc *scp, u_int32_t bits, int cnt); |
| 183 | static int xe_mii_readreg (struct xe_softc *scp, struct xe_mii_frame *frame); |
| 184 | static int xe_mii_writereg (struct xe_softc *scp, struct xe_mii_frame *frame); |
| 185 | static u_int16_t xe_phy_readreg (struct xe_softc *scp, u_int16_t reg); |
| 186 | static void xe_phy_writereg (struct xe_softc *scp, u_int16_t reg, u_int16_t data); |
| 187 | |
| 188 | /* Debugging functions */ |
| 189 | static void xe_reg_dump (struct xe_softc *scp); |
| 190 | static void xe_mii_dump (struct xe_softc *scp); |
| 191 | |
| 192 | #define XE_DEBUG |
| 193 | |
| 194 | #ifdef XE_DEBUG |
| 195 | |
| 196 | /* sysctl vars */ |
| 197 | SYSCTL_NODE(_hw, OID_AUTO, xe, CTLFLAG_RD, 0, "xe parameters"); |
| 198 | |
| 199 | /* |
| 200 | * Debug logging levels - set with hw.xe.debug sysctl |
| 201 | * 0 = None |
| 202 | * 1 = More hardware details, probe/attach progress |
| 203 | * 2 = Most function calls, ioctls and media selection progress |
| 204 | * 3 = Everything - interrupts, packets in/out and multicast address setup |
| 205 | */ |
| 206 | int xe_debug = 1; |
| 207 | SYSCTL_INT(_hw_xe, OID_AUTO, debug, CTLFLAG_RW, &xe_debug, 0, "xe debug level"); |
| 208 | |
| 209 | #define DPRINTF(level, arg) if (xe_debug >= (level)) printf arg |
| 210 | #define IFPRINTF(level, arg) if (xe_debug >= (level)) if_printf arg |
| 211 | #define DEVPRINTF(level, arg) if (xe_debug >= (level)) device_printf arg |
| 212 | #define XE_MII_DUMP(scp) if (xe_debug >= 3) xe_mii_dump(scp) |
| 213 | #define XE_REG_DUMP(scp) if (xe_debug >= 3) xe_reg_dump(scp) |
| 214 | |
| 215 | #else /* !XE_DEBUG */ |
| 216 | |
| 217 | #define DPRINTF(level, arg) |
| 218 | #define IFPRINTF(level, arg) |
| 219 | #define DEVPRINTF(level, arg) |
| 220 | #define XE_REG_DUMP(scp) |
| 221 | #define XE_MII_DUMP(scp) |
| 222 | |
| 223 | #endif /* XE_DEBUG */ |
| 224 | |
| 225 | /* |
| 226 | * The device entry is being removed, probably because someone ejected the |
| 227 | * card. The interface should have been brought down manually before calling |
| 228 | * this function; if not you may well lose packets. In any case, I shut down |
| 229 | * the card and the interface, and hope for the best. |
| 230 | */ |
| 231 | int |
| 232 | xe_detach(device_t dev) |
| 233 | { |
| 234 | struct xe_softc *sc = device_get_softc(dev); |
| 235 | |
| 236 | crit_enter(); |
| 237 | |
| 238 | sc->arpcom.ac_if.if_flags &= ~IFF_RUNNING; |
| 239 | callout_stop(&sc->xe_timer); |
| 240 | ether_ifdetach(&sc->arpcom.ac_if); |
| 241 | bus_teardown_intr(dev, sc->irq_res, sc->intrhand); |
| 242 | |
| 243 | crit_exit(); |
| 244 | |
| 245 | xe_deactivate(dev); |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | /* |
| 250 | * Attach a device. |
| 251 | */ |
| 252 | int |
| 253 | xe_attach (device_t dev) |
| 254 | { |
| 255 | struct xe_softc *scp = device_get_softc(dev); |
| 256 | int err; |
| 257 | |
| 258 | DEVPRINTF(2, (dev, "attach\n")); |
| 259 | |
| 260 | /* Fill in some private data */ |
| 261 | scp->ifp = &scp->arpcom.ac_if; |
| 262 | scp->ifm = &scp->ifmedia; |
| 263 | scp->autoneg_status = XE_AUTONEG_NONE; |
| 264 | |
| 265 | /* Initialise the ifnet structure */ |
| 266 | scp->ifp->if_softc = scp; |
| 267 | if_initname(scp->ifp, device_get_name(dev), device_get_unit(dev)); |
| 268 | scp->ifp->if_timer = 0; |
| 269 | scp->ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); |
| 270 | scp->ifp->if_linkmib = &scp->mibdata; |
| 271 | scp->ifp->if_linkmiblen = sizeof scp->mibdata; |
| 272 | scp->ifp->if_start = xe_start; |
| 273 | scp->ifp->if_ioctl = xe_ioctl; |
| 274 | scp->ifp->if_watchdog = xe_watchdog; |
| 275 | scp->ifp->if_init = xe_init; |
| 276 | scp->ifp->if_baudrate = 100000000; |
| 277 | ifq_set_maxlen(&scp->ifp->if_snd, IFQ_MAXLEN); |
| 278 | ifq_set_ready(&scp->ifp->if_snd); |
| 279 | |
| 280 | /* Initialise the ifmedia structure */ |
| 281 | ifmedia_init(scp->ifm, 0, xe_media_change, xe_media_status); |
| 282 | callout_init(&scp->xe_timer); |
| 283 | |
| 284 | /* Add supported media types */ |
| 285 | if (scp->mohawk) { |
| 286 | ifmedia_add(scp->ifm, IFM_ETHER|IFM_100_TX, 0, NULL); |
| 287 | ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); |
| 288 | ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL); |
| 289 | } |
| 290 | ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_T, 0, NULL); |
| 291 | if (scp->ce2) |
| 292 | ifmedia_add(scp->ifm, IFM_ETHER|IFM_10_2, 0, NULL); |
| 293 | ifmedia_add(scp->ifm, IFM_ETHER|IFM_AUTO, 0, NULL); |
| 294 | |
| 295 | /* Default is to autoselect best supported media type */ |
| 296 | ifmedia_set(scp->ifm, IFM_ETHER|IFM_AUTO); |
| 297 | |
| 298 | /* Get the hardware into a known state */ |
| 299 | xe_reset(scp); |
| 300 | |
| 301 | /* Get hardware version numbers */ |
| 302 | XE_SELECT_PAGE(4); |
| 303 | scp->version = XE_INB(XE_BOV); |
| 304 | if (scp->mohawk) |
| 305 | scp->srev = (XE_INB(XE_BOV) & 0x70) >> 4; |
| 306 | else |
| 307 | scp->srev = (XE_INB(XE_BOV) & 0x30) >> 4; |
| 308 | |
| 309 | /* Print some useful information */ |
| 310 | device_printf(dev, "%s %s, version 0x%02x/0x%02x%s%s\n", |
| 311 | scp->vendor, |
| 312 | scp->card_type, |
| 313 | scp->version, |
| 314 | scp->srev, |
| 315 | scp->mohawk ? ", 100Mbps capable" : "", |
| 316 | scp->modem ? ", with modem" : ""); |
| 317 | |
| 318 | if (scp->mohawk) { |
| 319 | XE_SELECT_PAGE(0x10); |
| 320 | DEVPRINTF(1, (dev, "DingoID=0x%04x, RevisionID=0x%04x, VendorID=0x%04x\n", |
| 321 | XE_INW(XE_DINGOID), |
| 322 | XE_INW(XE_RevID), |
| 323 | XE_INW(XE_VendorID))); |
| 324 | } |
| 325 | if (scp->ce2) { |
| 326 | XE_SELECT_PAGE(0x45); |
| 327 | DEVPRINTF(1, (dev, "CE2 version = 0x%#02x\n", XE_INB(XE_REV))); |
| 328 | } |
| 329 | |
| 330 | /* Attach the interface */ |
| 331 | ether_ifattach(scp->ifp, scp->arpcom.ac_enaddr, NULL); |
| 332 | |
| 333 | err = bus_setup_intr(dev, scp->irq_res, INTR_NETSAFE, |
| 334 | xe_intr, scp, &scp->intrhand, |
| 335 | scp->arpcom.ac_if.if_serializer); |
| 336 | if (err) { |
| 337 | device_printf(dev, "Setup intr failed\n"); |
| 338 | ether_ifdetach(&scp->arpcom.ac_if); |
| 339 | xe_deactivate(dev); |
| 340 | return err; |
| 341 | } |
| 342 | |
| 343 | /* Done */ |
| 344 | return 0; |
| 345 | } |
| 346 | |
| 347 | |
| 348 | /* |
| 349 | * Complete hardware intitialisation and enable output. Exits without doing |
| 350 | * anything if there's no address assigned to the card, or if media selection |
| 351 | * is in progress (the latter implies we've already run this function). |
| 352 | */ |
| 353 | static void |
| 354 | xe_init(void *xscp) { |
| 355 | struct xe_softc *scp = xscp; |
| 356 | u_int i; |
| 357 | |
| 358 | if (scp->autoneg_status != XE_AUTONEG_NONE) return; |
| 359 | |
| 360 | IFPRINTF(2, (scp->ifp, "init\n")); |
| 361 | |
| 362 | crit_enter(); |
| 363 | |
| 364 | /* Reset transmitter flags */ |
| 365 | scp->tx_queued = 0; |
| 366 | scp->tx_tpr = 0; |
| 367 | scp->tx_timeouts = 0; |
| 368 | scp->tx_thres = 64; |
| 369 | scp->tx_min = ETHER_MIN_LEN - ETHER_CRC_LEN; |
| 370 | scp->ifp->if_timer = 0; |
| 371 | |
| 372 | /* Soft reset the card */ |
| 373 | XE_SELECT_PAGE(0); |
| 374 | XE_OUTB(XE_CR, XE_CR_SOFT_RESET); |
| 375 | DELAY(40000); |
| 376 | XE_OUTB(XE_CR, 0); |
| 377 | DELAY(40000); |
| 378 | |
| 379 | if (scp->mohawk) { |
| 380 | /* |
| 381 | * set GP1 and GP2 as outputs (bits 2 & 3) |
| 382 | * set GP1 low to power on the ML6692 (bit 0) |
| 383 | * set GP2 high to power on the 10Mhz chip (bit 1) |
| 384 | */ |
| 385 | XE_SELECT_PAGE(4); |
| 386 | XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT|XE_GPR0_GP1_SELECT|XE_GPR0_GP2_OUT); |
| 387 | } |
| 388 | |
| 389 | /* Shut off interrupts */ |
| 390 | xe_disable_intr(scp); |
| 391 | |
| 392 | /* Wait for everything to wake up */ |
| 393 | DELAY(500000); |
| 394 | |
| 395 | /* Check for PHY */ |
| 396 | if (scp->mohawk) |
| 397 | scp->phy_ok = xe_mii_init(scp); |
| 398 | |
| 399 | /* Disable 'source insertion' (not sure what that means) */ |
| 400 | XE_SELECT_PAGE(0x42); |
| 401 | XE_OUTB(XE_SWC0, XE_SWC0_NO_SRC_INSERT); |
| 402 | |
| 403 | /* Set 8K/24K Tx/Rx buffer split */ |
| 404 | if (scp->srev != 1) { |
| 405 | XE_SELECT_PAGE(2); |
| 406 | XE_OUTW(XE_RBS, 0x2000); |
| 407 | } |
| 408 | |
| 409 | /* Enable early transmit mode on Mohawk/Dingo */ |
| 410 | if (scp->mohawk) { |
| 411 | XE_SELECT_PAGE(0x03); |
| 412 | XE_OUTW(XE_TPT, scp->tx_thres); |
| 413 | XE_SELECT_PAGE(0x01); |
| 414 | XE_OUTB(XE_ECR, XE_INB(XE_ECR) | XE_ECR_EARLY_TX); |
| 415 | } |
| 416 | |
| 417 | /* Put MAC address in first 'individual address' register */ |
| 418 | XE_SELECT_PAGE(0x50); |
| 419 | for (i = 0; i < 6; i++) |
| 420 | XE_OUTB(0x08 + i, scp->arpcom.ac_enaddr[scp->mohawk ? 5 - i : i]); |
| 421 | |
| 422 | /* Set up multicast addresses */ |
| 423 | xe_set_multicast(scp); |
| 424 | |
| 425 | /* Fix the receive data offset -- reset can leave it off-by-one */ |
| 426 | XE_SELECT_PAGE(0); |
| 427 | XE_OUTW(XE_DO, 0x2000); |
| 428 | |
| 429 | /* Set interrupt masks */ |
| 430 | XE_SELECT_PAGE(1); |
| 431 | XE_OUTB(XE_IMR0, XE_IMR0_TX_PACKET | XE_IMR0_MAC_INTR | XE_IMR0_RX_PACKET); |
| 432 | |
| 433 | /* Set MAC interrupt masks */ |
| 434 | XE_SELECT_PAGE(0x40); |
| 435 | XE_OUTB(XE_RX0Msk, |
| 436 | ~(XE_RX0M_RX_OVERRUN | XE_RX0M_CRC_ERROR |
| 437 | | XE_RX0M_ALIGN_ERROR | XE_RX0M_LONG_PACKET)); |
| 438 | XE_OUTB(XE_TX0Msk, |
| 439 | ~(XE_TX0M_SQE_FAIL | XE_TX0M_LATE_COLLISION | XE_TX0M_TX_UNDERRUN |
| 440 | | XE_TX0M_16_COLLISIONS | XE_TX0M_NO_CARRIER)); |
| 441 | |
| 442 | /* Clear MAC status registers */ |
| 443 | XE_SELECT_PAGE(0x40); |
| 444 | XE_OUTB(XE_RST0, 0x00); |
| 445 | XE_OUTB(XE_TXST0, 0x00); |
| 446 | |
| 447 | /* Enable receiver and put MAC online */ |
| 448 | XE_SELECT_PAGE(0x40); |
| 449 | XE_OUTB(XE_CMD0, XE_CMD0_RX_ENABLE|XE_CMD0_ONLINE); |
| 450 | |
| 451 | /* Set up IMR, enable interrupts */ |
| 452 | xe_enable_intr(scp); |
| 453 | |
| 454 | /* Start media selection */ |
| 455 | xe_setmedia_serialized(scp); |
| 456 | |
| 457 | /* Enable output */ |
| 458 | scp->ifp->if_flags |= IFF_RUNNING; |
| 459 | scp->ifp->if_flags &= ~IFF_OACTIVE; |
| 460 | |
| 461 | crit_exit(); |
| 462 | } |
| 463 | |
| 464 | |
| 465 | /* |
| 466 | * Start output on interface. Should be called at splimp() priority. Check |
| 467 | * that the output is idle (ie, IFF_OACTIVE is not set) before calling this |
| 468 | * function. If media selection is in progress we set IFF_OACTIVE ourselves |
| 469 | * and return immediately. |
| 470 | */ |
| 471 | static void |
| 472 | xe_start(struct ifnet *ifp) { |
| 473 | struct xe_softc *scp = ifp->if_softc; |
| 474 | struct mbuf *mbp; |
| 475 | |
| 476 | if (scp->autoneg_status != XE_AUTONEG_NONE) { |
| 477 | ifp->if_flags |= IFF_OACTIVE; |
| 478 | return; |
| 479 | } |
| 480 | |
| 481 | IFPRINTF(3, (ifp, "start\n")); |
| 482 | |
| 483 | /* |
| 484 | * Loop while there are packets to be sent, and space to send them. |
| 485 | */ |
| 486 | while (1) { |
| 487 | mbp = ifq_poll(&ifp->if_snd); /* Suck a packet off the send queue */ |
| 488 | |
| 489 | if (mbp == NULL) { |
| 490 | /* |
| 491 | * We are using the !OACTIVE flag to indicate to the outside world that |
| 492 | * we can accept an additional packet rather than that the transmitter |
| 493 | * is _actually_ active. Indeed, the transmitter may be active, but if |
| 494 | * we haven't filled all the buffers with data then we still want to |
| 495 | * accept more. |
| 496 | */ |
| 497 | ifp->if_flags &= ~IFF_OACTIVE; |
| 498 | return; |
| 499 | } |
| 500 | |
| 501 | if (xe_pio_write_packet(scp, mbp) != 0) { |
| 502 | ifp->if_flags |= IFF_OACTIVE; |
| 503 | return; |
| 504 | } |
| 505 | |
| 506 | ifq_dequeue(&ifp->if_snd, mbp); |
| 507 | BPF_MTAP(ifp, mbp); |
| 508 | |
| 509 | ifp->if_timer = 5; /* In case we don't hear from the card again */ |
| 510 | scp->tx_queued++; |
| 511 | |
| 512 | m_freem(mbp); |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | |
| 517 | /* |
| 518 | * Process an ioctl request. Adapted from the ed driver. |
| 519 | */ |
| 520 | static int |
| 521 | xe_ioctl (struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr) { |
| 522 | struct xe_softc *scp; |
| 523 | int error; |
| 524 | |
| 525 | scp = ifp->if_softc; |
| 526 | error = 0; |
| 527 | |
| 528 | crit_enter(); |
| 529 | |
| 530 | switch (command) { |
| 531 | |
| 532 | case SIOCSIFFLAGS: |
| 533 | IFPRINTF(2, (ifp, "ioctl: SIOCSIFFLAGS: 0x%04x\n", ifp->if_flags)); |
| 534 | /* |
| 535 | * If the interface is marked up and stopped, then start it. If it is |
| 536 | * marked down and running, then stop it. |
| 537 | */ |
| 538 | if (ifp->if_flags & IFF_UP) { |
| 539 | if (!(ifp->if_flags & IFF_RUNNING)) { |
| 540 | xe_reset(scp); |
| 541 | xe_init(scp); |
| 542 | } |
| 543 | } |
| 544 | else { |
| 545 | if (ifp->if_flags & IFF_RUNNING) |
| 546 | xe_stop(scp); |
| 547 | } |
| 548 | /* FALL THROUGH (handle changes to PROMISC/ALLMULTI flags) */ |
| 549 | |
| 550 | case SIOCADDMULTI: |
| 551 | case SIOCDELMULTI: |
| 552 | IFPRINTF(2, (ifp, "ioctl: SIOC{ADD,DEL}MULTI\n")); |
| 553 | /* |
| 554 | * Multicast list has (maybe) changed; set the hardware filters |
| 555 | * accordingly. |
| 556 | */ |
| 557 | xe_set_multicast(scp); |
| 558 | error = 0; |
| 559 | break; |
| 560 | |
| 561 | case SIOCSIFMEDIA: |
| 562 | case SIOCGIFMEDIA: |
| 563 | IFPRINTF(3, (ifp, "ioctl: bounce to ifmedia_ioctl\n")); |
| 564 | /* |
| 565 | * Someone wants to get/set media options. |
| 566 | */ |
| 567 | error = ifmedia_ioctl(ifp, (struct ifreq *)data, &scp->ifmedia, command); |
| 568 | break; |
| 569 | |
| 570 | default: |
| 571 | IFPRINTF(3, (ifp, "ioctl: bounce to ether_ioctl\n")); |
| 572 | error = ether_ioctl(ifp, command, data); |
| 573 | break; |
| 574 | } |
| 575 | |
| 576 | crit_exit(); |
| 577 | |
| 578 | return error; |
| 579 | } |
| 580 | |
| 581 | |
| 582 | /* |
| 583 | * Card interrupt handler. |
| 584 | * |
| 585 | * This function is probably more complicated than it needs to be, as it |
| 586 | * attempts to deal with the case where multiple packets get sent between |
| 587 | * interrupts. This is especially annoying when working out the collision |
| 588 | * stats. Not sure whether this case ever really happens or not (maybe on a |
| 589 | * slow/heavily loaded machine?) so it's probably best to leave this like it |
| 590 | * is. |
| 591 | * |
| 592 | * Note that the crappy PIO used to get packets on and off the card means that |
| 593 | * you will spend a lot of time in this routine -- I can get my P150 to spend |
| 594 | * 90% of its time servicing interrupts if I really hammer the network. Could |
| 595 | * fix this, but then you'd start dropping/losing packets. The moral of this |
| 596 | * story? If you want good network performance _and_ some cycles left over to |
| 597 | * get your work done, don't buy a Xircom card. Or convince them to tell me |
| 598 | * how to do memory-mapped I/O :) |
| 599 | */ |
| 600 | static void |
| 601 | xe_intr(void *xscp) |
| 602 | { |
| 603 | struct xe_softc *scp = (struct xe_softc *) xscp; |
| 604 | struct ifnet *ifp; |
| 605 | u_int8_t psr, isr, esr, rsr, rst0, txst0, txst1, coll; |
| 606 | |
| 607 | ifp = &scp->arpcom.ac_if; |
| 608 | |
| 609 | /* Disable interrupts */ |
| 610 | if (scp->mohawk) |
| 611 | XE_OUTB(XE_CR, 0); |
| 612 | |
| 613 | /* Cache current register page */ |
| 614 | psr = XE_INB(XE_PR); |
| 615 | |
| 616 | /* Read ISR to see what caused this interrupt */ |
| 617 | while ((isr = XE_INB(XE_ISR)) != 0) { |
| 618 | /* 0xff might mean the card is no longer around */ |
| 619 | if (isr == 0xff) { |
| 620 | IFPRINTF(3, (ifp, "intr: interrupt received for missing card?\n")); |
| 621 | break; |
| 622 | } |
| 623 | |
| 624 | /* Read other status registers */ |
| 625 | XE_SELECT_PAGE(0x40); |
| 626 | rst0 = XE_INB(XE_RST0); |
| 627 | XE_OUTB(XE_RST0, 0); |
| 628 | txst0 = XE_INB(XE_TXST0); |
| 629 | txst1 = XE_INB(XE_TXST1); |
| 630 | coll = txst1 & XE_TXST1_RETRY_COUNT; |
| 631 | XE_OUTB(XE_TXST0, 0); |
| 632 | XE_OUTB(XE_TXST1, 0); |
| 633 | XE_SELECT_PAGE(0); |
| 634 | |
| 635 | IFPRINTF(3, (ifp, |
| 636 | "intr: ISR=0x%02x, RST=0x%02x, TXT=0x%02x%02x, COLL=0x%01x\n", |
| 637 | isr, rst0, txst1, txst0, coll)); |
| 638 | |
| 639 | /* Handle transmitted packet(s) */ |
| 640 | if (isr & XE_ISR_TX_PACKET) { |
| 641 | u_int8_t tpr, sent; |
| 642 | |
| 643 | /* Update packet count, accounting for rollover */ |
| 644 | tpr = XE_INB(XE_TPR); |
| 645 | sent = -scp->tx_tpr + tpr; |
| 646 | |
| 647 | /* Update statistics if we actually sent anything */ |
| 648 | if (sent > 0) { |
| 649 | scp->tx_tpr = tpr; |
| 650 | scp->tx_queued -= sent; |
| 651 | ifp->if_opackets += sent; |
| 652 | ifp->if_collisions += coll; |
| 653 | |
| 654 | /* |
| 655 | * According to the Xircom manual, Dingo will sometimes manage to |
| 656 | * transmit a packet with triggering an interrupt. If this happens, |
| 657 | * we have sent > 1 and the collision count only reflects collisions |
| 658 | * on the last packet sent (the one that triggered the interrupt). |
| 659 | * Collision stats might therefore be a bit low, but there doesn't |
| 660 | * seem to be anything we can do about that. |
| 661 | */ |
| 662 | switch (coll) { |
| 663 | case 0: |
| 664 | break; |
| 665 | case 1: |
| 666 | scp->mibdata.dot3StatsSingleCollisionFrames++; |
| 667 | scp->mibdata.dot3StatsCollFrequencies[0]++; |
| 668 | break; |
| 669 | default: |
| 670 | scp->mibdata.dot3StatsMultipleCollisionFrames++; |
| 671 | scp->mibdata.dot3StatsCollFrequencies[coll-1]++; |
| 672 | } |
| 673 | } |
| 674 | ifp->if_timer = 0; |
| 675 | ifp->if_flags &= ~IFF_OACTIVE; |
| 676 | } |
| 677 | |
| 678 | /* Handle most MAC interrupts */ |
| 679 | if (isr & XE_ISR_MAC_INTR) { |
| 680 | #if 0 |
| 681 | /* Carrier sense lost -- only in 10Mbit HDX mode */ |
| 682 | if (txst0 & XE_TXST0_NO_CARRIER || !(txst1 & XE_TXST1_LINK_STATUS)) { |
| 683 | /* XXX - Need to update media status here */ |
| 684 | device_printf(scp->dev, "no carrier\n"); |
| 685 | ifp->if_oerrors++; |
| 686 | scp->mibdata.dot3StatsCarrierSenseErrors++; |
| 687 | } |
| 688 | #endif |
| 689 | /* Excessive collisions -- try sending again */ |
| 690 | if (txst0 & XE_TXST0_16_COLLISIONS) { |
| 691 | ifp->if_collisions += 16; |
| 692 | ifp->if_oerrors++; |
| 693 | scp->mibdata.dot3StatsExcessiveCollisions++; |
| 694 | scp->mibdata.dot3StatsMultipleCollisionFrames++; |
| 695 | scp->mibdata.dot3StatsCollFrequencies[15]++; |
| 696 | XE_OUTB(XE_CR, XE_CR_RESTART_TX); |
| 697 | } |
| 698 | /* Transmit underrun -- increase early transmit threshold */ |
| 699 | if (txst0 & XE_TXST0_TX_UNDERRUN && scp->mohawk) { |
| 700 | IFPRINTF(1, (ifp, "transmit underrun")); |
| 701 | if (scp->tx_thres < ETHER_MAX_LEN) { |
| 702 | if ((scp->tx_thres += 64) > ETHER_MAX_LEN) |
| 703 | scp->tx_thres = ETHER_MAX_LEN; |
| 704 | DPRINTF(1, (": increasing transmit threshold to %u", scp->tx_thres)); |
| 705 | XE_SELECT_PAGE(0x3); |
| 706 | XE_OUTW(XE_TPT, scp->tx_thres); |
| 707 | XE_SELECT_PAGE(0x0); |
| 708 | } |
| 709 | DPRINTF(1, ("\n")); |
| 710 | ifp->if_oerrors++; |
| 711 | scp->mibdata.dot3StatsInternalMacTransmitErrors++; |
| 712 | } |
| 713 | /* Late collision -- just complain about it */ |
| 714 | if (txst0 & XE_TXST0_LATE_COLLISION) { |
| 715 | if_printf(ifp, "late collision\n"); |
| 716 | ifp->if_oerrors++; |
| 717 | scp->mibdata.dot3StatsLateCollisions++; |
| 718 | } |
| 719 | /* SQE test failure -- just complain about it */ |
| 720 | if (txst0 & XE_TXST0_SQE_FAIL) { |
| 721 | if_printf(ifp, "SQE test failure\n"); |
| 722 | ifp->if_oerrors++; |
| 723 | scp->mibdata.dot3StatsSQETestErrors++; |
| 724 | } |
| 725 | /* Packet too long -- what happens to these */ |
| 726 | if (rst0 & XE_RST0_LONG_PACKET) { |
| 727 | if_printf(ifp, "received giant packet\n"); |
| 728 | ifp->if_ierrors++; |
| 729 | scp->mibdata.dot3StatsFrameTooLongs++; |
| 730 | } |
| 731 | /* CRC error -- packet dropped */ |
| 732 | if (rst0 & XE_RST0_CRC_ERROR) { |
| 733 | if_printf(ifp, "CRC error\n"); |
| 734 | ifp->if_ierrors++; |
| 735 | scp->mibdata.dot3StatsFCSErrors++; |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | /* Handle received packet(s) */ |
| 740 | while ((esr = XE_INB(XE_ESR)) & XE_ESR_FULL_PACKET_RX) { |
| 741 | rsr = XE_INB(XE_RSR); |
| 742 | IFPRINTF(3, (ifp, "intr: ESR=0x%02x, RSR=0x%02x\n", esr, rsr)); |
| 743 | |
| 744 | /* Make sure packet is a good one */ |
| 745 | if (rsr & XE_RSR_RX_OK) { |
| 746 | struct ether_header *ehp; |
| 747 | struct mbuf *mbp; |
| 748 | u_int16_t len; |
| 749 | |
| 750 | len = XE_INW(XE_RBC) - ETHER_CRC_LEN; |
| 751 | |
| 752 | IFPRINTF(3, (ifp, "intr: receive length = %d\n", len)); |
| 753 | |
| 754 | if (len == 0) { |
| 755 | ifp->if_iqdrops++; |
| 756 | continue; |
| 757 | } |
| 758 | |
| 759 | /* |
| 760 | * Allocate mbuf to hold received packet. If the mbuf header isn't |
| 761 | * big enough, we attach an mbuf cluster to hold the packet. Note the |
| 762 | * +=2 to align the packet data on a 32-bit boundary, and the +3 to |
| 763 | * allow for the possibility of reading one more byte than the actual |
| 764 | * packet length (we always read 16-bit words). |
| 765 | * XXX - Surely there's a better way to do this alignment? |
| 766 | */ |
| 767 | MGETHDR(mbp, MB_DONTWAIT, MT_DATA); |
| 768 | if (mbp == NULL) { |
| 769 | ifp->if_iqdrops++; |
| 770 | continue; |
| 771 | } |
| 772 | |
| 773 | if (len + 3 > MHLEN) { |
| 774 | MCLGET(mbp, MB_DONTWAIT); |
| 775 | if ((mbp->m_flags & M_EXT) == 0) { |
| 776 | m_freem(mbp); |
| 777 | ifp->if_iqdrops++; |
| 778 | continue; |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | mbp->m_data += 2; |
| 783 | ehp = mtod(mbp, struct ether_header *); |
| 784 | |
| 785 | /* |
| 786 | * Now get the packet in PIO mode, including the Ethernet header but |
| 787 | * omitting the trailing CRC. |
| 788 | */ |
| 789 | |
| 790 | /* |
| 791 | * Work around a bug in CE2 cards. There seems to be a problem with |
| 792 | * duplicated and extraneous bytes in the receive buffer, but without |
| 793 | * any real documentation for the CE2 it's hard to tell for sure. |
| 794 | * XXX - Needs testing on CE2 hardware |
| 795 | */ |
| 796 | if (scp->srev == 0) { |
| 797 | u_short rhs; |
| 798 | |
| 799 | XE_SELECT_PAGE(5); |
| 800 | rhs = XE_INW(XE_RHSA); |
| 801 | XE_SELECT_PAGE(0); |
| 802 | |
| 803 | rhs += 3; /* Skip control info */ |
| 804 | |
| 805 | if (rhs >= 0x8000) |
| 806 | rhs = 0; |
| 807 | |
| 808 | if (rhs + len > 0x8000) { |
| 809 | int i; |
| 810 | |
| 811 | for (i = 0; i < len; i++, rhs++) { |
| 812 | ((char *)ehp)[i] = XE_INB(XE_EDP); |
| 813 | if (rhs == 0x8000) { |
| 814 | rhs = 0; |
| 815 | i--; |
| 816 | } |
| 817 | } |
| 818 | } |
| 819 | else |
| 820 | bus_space_read_multi_2(scp->bst, scp->bsh, XE_EDP, |
| 821 | (u_int16_t *) ehp, (len + 1) >> 1); |
| 822 | } |
| 823 | else |
| 824 | bus_space_read_multi_2(scp->bst, scp->bsh, XE_EDP, |
| 825 | (u_int16_t *) ehp, (len + 1) >> 1); |
| 826 | |
| 827 | /* Deliver packet to upper layers */ |
| 828 | mbp->m_pkthdr.rcvif = ifp; |
| 829 | mbp->m_pkthdr.len = mbp->m_len = len; |
| 830 | ifp->if_input(ifp, mbp); |
| 831 | ifp->if_ipackets++; |
| 832 | } |
| 833 | else if (rsr & XE_RSR_ALIGN_ERROR) { |
| 834 | /* Packet alignment error -- drop packet */ |
| 835 | if_printf(ifp, "alignment error\n"); |
| 836 | scp->mibdata.dot3StatsAlignmentErrors++; |
| 837 | ifp->if_ierrors++; |
| 838 | } |
| 839 | |
| 840 | /* Skip to next packet, if there is one */ |
| 841 | XE_OUTW(XE_DO, 0x8000); |
| 842 | } |
| 843 | |
| 844 | /* Clear receiver overruns now we have some free buffer space */ |
| 845 | if (rst0 & XE_RST0_RX_OVERRUN) { |
| 846 | IFPRINTF(1, (ifp, "receive overrun\n")); |
| 847 | ifp->if_ierrors++; |
| 848 | scp->mibdata.dot3StatsInternalMacReceiveErrors++; |
| 849 | XE_OUTB(XE_CR, XE_CR_CLEAR_OVERRUN); |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | /* Restore saved page */ |
| 854 | XE_SELECT_PAGE(psr); |
| 855 | |
| 856 | /* Re-enable interrupts */ |
| 857 | XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); |
| 858 | } |
| 859 | |
| 860 | |
| 861 | /* |
| 862 | * Device timeout/watchdog routine. Called automatically if we queue a packet |
| 863 | * for transmission but don't get an interrupt within a specified timeout |
| 864 | * (usually 5 seconds). When this happens we assume the worst and reset the |
| 865 | * card. |
| 866 | */ |
| 867 | static void |
| 868 | xe_watchdog(struct ifnet *ifp) { |
| 869 | struct xe_softc *scp = ifp->if_softc; |
| 870 | |
| 871 | if_printf(ifp, "watchdog timeout; resetting card\n"); |
| 872 | scp->tx_timeouts++; |
| 873 | ifp->if_oerrors += scp->tx_queued; |
| 874 | xe_stop(scp); |
| 875 | xe_reset(scp); |
| 876 | xe_init(scp); |
| 877 | } |
| 878 | |
| 879 | |
| 880 | /* |
| 881 | * Change media selection. |
| 882 | */ |
| 883 | static int |
| 884 | xe_media_change(struct ifnet *ifp) { |
| 885 | struct xe_softc *scp = ifp->if_softc; |
| 886 | |
| 887 | IFPRINTF(2, (ifp, "media_change\n")); |
| 888 | |
| 889 | if (IFM_TYPE(scp->ifm->ifm_media) != IFM_ETHER) |
| 890 | return(EINVAL); |
| 891 | |
| 892 | /* |
| 893 | * Some card/media combos aren't always possible -- filter those out here. |
| 894 | */ |
| 895 | if ((IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_AUTO || |
| 896 | IFM_SUBTYPE(scp->ifm->ifm_media) == IFM_100_TX) && !scp->phy_ok) |
| 897 | return (EINVAL); |
| 898 | |
| 899 | xe_setmedia_serialized(scp); |
| 900 | |
| 901 | return 0; |
| 902 | } |
| 903 | |
| 904 | |
| 905 | /* |
| 906 | * Return current media selection. |
| 907 | */ |
| 908 | static void |
| 909 | xe_media_status(struct ifnet *ifp, struct ifmediareq *mrp) { |
| 910 | |
| 911 | IFPRINTF(3, (ifp, "media_status\n")); |
| 912 | |
| 913 | /* XXX - This is clearly wrong. Will fix once I have CE2 working */ |
| 914 | mrp->ifm_status = IFM_AVALID | IFM_ACTIVE; |
| 915 | mrp->ifm_active = ((struct xe_softc *)ifp->if_softc)->media; |
| 916 | } |
| 917 | |
| 918 | static |
| 919 | void |
| 920 | xe_setmedia(void *xscp) |
| 921 | { |
| 922 | struct xe_softc *scp = xscp; |
| 923 | |
| 924 | lwkt_serialize_enter(scp->arpcom.ac_if.if_serializer); |
| 925 | xe_setmedia_serialized(xscp); |
| 926 | lwkt_serialize_exit(scp->arpcom.ac_if.if_serializer); |
| 927 | } |
| 928 | |
| 929 | /* |
| 930 | * Select active media. |
| 931 | */ |
| 932 | static |
| 933 | void |
| 934 | xe_setmedia_serialized(void *xscp) |
| 935 | { |
| 936 | struct xe_softc *scp = xscp; |
| 937 | u_int16_t bmcr, bmsr, anar, lpar; |
| 938 | |
| 939 | IFPRINTF(2, (scp->ifp, "setmedia\n")); |
| 940 | |
| 941 | /* Cancel any pending timeout */ |
| 942 | callout_stop(&scp->xe_timer); |
| 943 | xe_disable_intr(scp); |
| 944 | |
| 945 | /* Select media */ |
| 946 | scp->media = IFM_ETHER; |
| 947 | switch (IFM_SUBTYPE(scp->ifm->ifm_media)) { |
| 948 | |
| 949 | case IFM_AUTO: /* Autoselect media */ |
| 950 | scp->media = IFM_ETHER|IFM_AUTO; |
| 951 | |
| 952 | /* |
| 953 | * Autoselection is really awful. It goes something like this: |
| 954 | * |
| 955 | * Wait until the transmitter goes idle (2sec timeout). |
| 956 | * Reset card |
| 957 | * IF a 100Mbit PHY exists |
| 958 | * Start NWAY autonegotiation (3.5sec timeout) |
| 959 | * IF that succeeds |
| 960 | * Select 100baseTX or 10baseT, whichever was detected |
| 961 | * ELSE |
| 962 | * Reset card |
| 963 | * IF a 100Mbit PHY exists |
| 964 | * Try to force a 100baseTX link (3sec timeout) |
| 965 | * IF that succeeds |
| 966 | * Select 100baseTX |
| 967 | * ELSE |
| 968 | * Disable the PHY |
| 969 | * ENDIF |
| 970 | * ENDIF |
| 971 | * ENDIF |
| 972 | * ENDIF |
| 973 | * IF nothing selected so far |
| 974 | * IF a 100Mbit PHY exists |
| 975 | * Select 10baseT |
| 976 | * ELSE |
| 977 | * Select 10baseT or 10base2, whichever is connected |
| 978 | * ENDIF |
| 979 | * ENDIF |
| 980 | */ |
| 981 | switch (scp->autoneg_status) { |
| 982 | |
| 983 | case XE_AUTONEG_NONE: |
| 984 | IFPRINTF(2, (scp->ifp, "Waiting for idle transmitter\n")); |
| 985 | scp->arpcom.ac_if.if_flags |= IFF_OACTIVE; |
| 986 | scp->autoneg_status = XE_AUTONEG_WAITING; |
| 987 | /* FALL THROUGH */ |
| 988 | |
| 989 | case XE_AUTONEG_WAITING: |
| 990 | if (scp->tx_queued != 0) { |
| 991 | callout_reset(&scp->xe_timer, hz / 2, xe_setmedia, scp); |
| 992 | return; |
| 993 | } |
| 994 | if (scp->phy_ok) { |
| 995 | IFPRINTF(2, (scp->ifp, "Starting autonegotiation\n")); |
| 996 | bmcr = xe_phy_readreg(scp, PHY_BMCR); |
| 997 | bmcr &= ~(PHY_BMCR_AUTONEGENBL); |
| 998 | xe_phy_writereg(scp, PHY_BMCR, bmcr); |
| 999 | anar = xe_phy_readreg(scp, PHY_ANAR); |
| 1000 | anar &= ~(PHY_ANAR_100BT4|PHY_ANAR_100BTXFULL|PHY_ANAR_10BTFULL); |
| 1001 | anar |= PHY_ANAR_100BTXHALF|PHY_ANAR_10BTHALF; |
| 1002 | xe_phy_writereg(scp, PHY_ANAR, anar); |
| 1003 | bmcr |= PHY_BMCR_AUTONEGENBL|PHY_BMCR_AUTONEGRSTR; |
| 1004 | xe_phy_writereg(scp, PHY_BMCR, bmcr); |
| 1005 | scp->autoneg_status = XE_AUTONEG_STARTED; |
| 1006 | callout_reset(&scp->xe_timer, hz * 7 / 2, xe_setmedia, scp); |
| 1007 | return; |
| 1008 | } |
| 1009 | else { |
| 1010 | scp->autoneg_status = XE_AUTONEG_FAIL; |
| 1011 | } |
| 1012 | break; |
| 1013 | |
| 1014 | case XE_AUTONEG_STARTED: |
| 1015 | bmsr = xe_phy_readreg(scp, PHY_BMSR); |
| 1016 | lpar = xe_phy_readreg(scp, PHY_LPAR); |
| 1017 | if (bmsr & (PHY_BMSR_AUTONEGCOMP|PHY_BMSR_LINKSTAT)) { |
| 1018 | IFPRINTF(2, (scp->ifp, "Autonegotiation complete!\n")); |
| 1019 | /* |
| 1020 | * XXX - Shouldn't have to do this, but (on my hub at least) the |
| 1021 | * XXX - transmitter won't work after a successful autoneg. So we see |
| 1022 | * XXX - what the negotiation result was and force that mode. I'm |
| 1023 | * XXX - sure there is an easy fix for this. |
| 1024 | */ |
| 1025 | if (lpar & PHY_LPAR_100BTXHALF) { |
| 1026 | xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); |
| 1027 | XE_MII_DUMP(scp); |
| 1028 | XE_SELECT_PAGE(2); |
| 1029 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); |
| 1030 | scp->media = IFM_ETHER|IFM_100_TX; |
| 1031 | scp->autoneg_status = XE_AUTONEG_NONE; |
| 1032 | } |
| 1033 | else { |
| 1034 | /* |
| 1035 | * XXX - Bit of a hack going on in here. |
| 1036 | * XXX - This is derived from Ken Hughes patch to the Linux driver |
| 1037 | * XXX - to make it work with 10Mbit _autonegotiated_ links on CE3B |
| 1038 | * XXX - cards. What's a CE3B and how's it differ from a plain CE3? |
| 1039 | * XXX - these are the things we need to find out. |
| 1040 | */ |
| 1041 | xe_phy_writereg(scp, PHY_BMCR, 0x0000); |
| 1042 | XE_SELECT_PAGE(2); |
| 1043 | /* BEGIN HACK */ |
| 1044 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); |
| 1045 | XE_SELECT_PAGE(0x42); |
| 1046 | XE_OUTB(XE_SWC1, 0x80); |
| 1047 | scp->media = IFM_ETHER|IFM_10_T; |
| 1048 | scp->autoneg_status = XE_AUTONEG_NONE; |
| 1049 | /* END HACK */ |
| 1050 | /*XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08);*/ /* Disable PHY? */ |
| 1051 | /*scp->autoneg_status = XE_AUTONEG_FAIL;*/ |
| 1052 | } |
| 1053 | } |
| 1054 | else { |
| 1055 | IFPRINTF(2, (scp->ifp, "Autonegotiation failed; trying 100baseTX\n")); |
| 1056 | XE_MII_DUMP(scp); |
| 1057 | if (scp->phy_ok) { |
| 1058 | xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); |
| 1059 | scp->autoneg_status = XE_AUTONEG_100TX; |
| 1060 | callout_reset(&scp->xe_timer, hz * 3, xe_setmedia, scp); |
| 1061 | return; |
| 1062 | } |
| 1063 | else { |
| 1064 | scp->autoneg_status = XE_AUTONEG_FAIL; |
| 1065 | } |
| 1066 | } |
| 1067 | break; |
| 1068 | |
| 1069 | case XE_AUTONEG_100TX: |
| 1070 | (void)xe_phy_readreg(scp, PHY_BMSR); |
| 1071 | bmsr = xe_phy_readreg(scp, PHY_BMSR); |
| 1072 | if (bmsr & PHY_BMSR_LINKSTAT) { |
| 1073 | IFPRINTF(2, (scp->ifp, "Got 100baseTX link!\n")); |
| 1074 | XE_MII_DUMP(scp); |
| 1075 | XE_SELECT_PAGE(2); |
| 1076 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); |
| 1077 | scp->media = IFM_ETHER|IFM_100_TX; |
| 1078 | scp->autoneg_status = XE_AUTONEG_NONE; |
| 1079 | } |
| 1080 | else { |
| 1081 | IFPRINTF(2, (scp->ifp, "Autonegotiation failed; disabling PHY\n")); |
| 1082 | XE_MII_DUMP(scp); |
| 1083 | xe_phy_writereg(scp, PHY_BMCR, 0x0000); |
| 1084 | XE_SELECT_PAGE(2); |
| 1085 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY? */ |
| 1086 | scp->autoneg_status = XE_AUTONEG_FAIL; |
| 1087 | } |
| 1088 | break; |
| 1089 | } |
| 1090 | |
| 1091 | /* |
| 1092 | * If we got down here _and_ autoneg_status is XE_AUTONEG_FAIL, then |
| 1093 | * either autonegotiation failed, or never got started to begin with. In |
| 1094 | * either case, select a suitable 10Mbit media and hope it works. We |
| 1095 | * don't need to reset the card again, since it will have been done |
| 1096 | * already by the big switch above. |
| 1097 | */ |
| 1098 | if (scp->autoneg_status == XE_AUTONEG_FAIL) { |
| 1099 | IFPRINTF(2, (scp->ifp, "Selecting 10baseX\n")); |
| 1100 | if (scp->mohawk) { |
| 1101 | XE_SELECT_PAGE(0x42); |
| 1102 | XE_OUTB(XE_SWC1, 0x80); |
| 1103 | scp->media = IFM_ETHER|IFM_10_T; |
| 1104 | scp->autoneg_status = XE_AUTONEG_NONE; |
| 1105 | } |
| 1106 | else { |
| 1107 | XE_SELECT_PAGE(4); |
| 1108 | XE_OUTB(XE_GPR0, 4); |
| 1109 | DELAY(50000); |
| 1110 | XE_SELECT_PAGE(0x42); |
| 1111 | XE_OUTB(XE_SWC1, (XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? 0x80 : 0xc0); |
| 1112 | scp->media = IFM_ETHER|((XE_INB(XE_ESR) & XE_ESR_MEDIA_SELECT) ? IFM_10_T : IFM_10_2); |
| 1113 | scp->autoneg_status = XE_AUTONEG_NONE; |
| 1114 | } |
| 1115 | } |
| 1116 | break; |
| 1117 | |
| 1118 | |
| 1119 | /* |
| 1120 | * If a specific media has been requested, we just reset the card and |
| 1121 | * select it (one small exception -- if 100baseTX is requested by there is |
| 1122 | * no PHY, we fall back to 10baseT operation). |
| 1123 | */ |
| 1124 | case IFM_100_TX: /* Force 100baseTX */ |
| 1125 | if (scp->phy_ok) { |
| 1126 | IFPRINTF(2, (scp->ifp, "Selecting 100baseTX\n")); |
| 1127 | XE_SELECT_PAGE(0x42); |
| 1128 | XE_OUTB(XE_SWC1, 0); |
| 1129 | xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_SPEEDSEL); |
| 1130 | XE_SELECT_PAGE(2); |
| 1131 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) | 0x08); |
| 1132 | scp->media |= IFM_100_TX; |
| 1133 | break; |
| 1134 | } |
| 1135 | /* FALLTHROUGH */ |
| 1136 | |
| 1137 | case IFM_10_T: /* Force 10baseT */ |
| 1138 | IFPRINTF(2, (scp->ifp, "Selecting 10baseT\n")); |
| 1139 | if (scp->phy_ok) { |
| 1140 | xe_phy_writereg(scp, PHY_BMCR, 0x0000); |
| 1141 | XE_SELECT_PAGE(2); |
| 1142 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~0x08); /* Disable PHY */ |
| 1143 | } |
| 1144 | XE_SELECT_PAGE(0x42); |
| 1145 | XE_OUTB(XE_SWC1, 0x80); |
| 1146 | scp->media |= IFM_10_T; |
| 1147 | break; |
| 1148 | |
| 1149 | case IFM_10_2: |
| 1150 | IFPRINTF(2, (scp->ifp, "Selecting 10base2\n")); |
| 1151 | XE_SELECT_PAGE(0x42); |
| 1152 | XE_OUTB(XE_SWC1, 0xc0); |
| 1153 | scp->media |= IFM_10_2; |
| 1154 | break; |
| 1155 | } |
| 1156 | |
| 1157 | |
| 1158 | /* |
| 1159 | * Finally, the LEDs are set to match whatever media was chosen and the |
| 1160 | * transmitter is unblocked. |
| 1161 | */ |
| 1162 | IFPRINTF(2, (scp->ifp, "Setting LEDs\n")); |
| 1163 | XE_SELECT_PAGE(2); |
| 1164 | switch (IFM_SUBTYPE(scp->media)) { |
| 1165 | case IFM_100_TX: |
| 1166 | case IFM_10_T: |
| 1167 | XE_OUTB(XE_LED, 0x3b); |
| 1168 | if (scp->dingo) |
| 1169 | XE_OUTB(0x0b, 0x04); /* 100Mbit LED */ |
| 1170 | break; |
| 1171 | |
| 1172 | case IFM_10_2: |
| 1173 | XE_OUTB(XE_LED, 0x3a); |
| 1174 | break; |
| 1175 | } |
| 1176 | |
| 1177 | /* Restart output? */ |
| 1178 | xe_enable_intr(scp); |
| 1179 | scp->ifp->if_flags &= ~IFF_OACTIVE; |
| 1180 | xe_start(scp->ifp); |
| 1181 | } |
| 1182 | |
| 1183 | |
| 1184 | /* |
| 1185 | * Hard reset (power cycle) the card. |
| 1186 | */ |
| 1187 | static void |
| 1188 | xe_reset(struct xe_softc *scp) { |
| 1189 | IFPRINTF(2, (scp->ifp, "hard_reset\n")); |
| 1190 | |
| 1191 | crit_enter(); |
| 1192 | |
| 1193 | /* Power down */ |
| 1194 | XE_SELECT_PAGE(4); |
| 1195 | XE_OUTB(XE_GPR1, 0); |
| 1196 | DELAY(40000); |
| 1197 | |
| 1198 | /* Power up again */ |
| 1199 | if (scp->mohawk) |
| 1200 | XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN); |
| 1201 | else |
| 1202 | XE_OUTB(XE_GPR1, XE_GPR1_POWER_DOWN|XE_GPR1_AIC); |
| 1203 | |
| 1204 | DELAY(40000); |
| 1205 | XE_SELECT_PAGE(0); |
| 1206 | |
| 1207 | crit_exit(); |
| 1208 | } |
| 1209 | |
| 1210 | |
| 1211 | /* |
| 1212 | * Take interface offline. This is done by powering down the device, which I |
| 1213 | * assume means just shutting down the transceiver and Ethernet logic. This |
| 1214 | * requires a _hard_ reset to recover from, as we need to power up again. |
| 1215 | */ |
| 1216 | static void |
| 1217 | xe_stop(struct xe_softc *scp) { |
| 1218 | IFPRINTF(2, (scp->ifp, "stop\n")); |
| 1219 | |
| 1220 | crit_enter(); |
| 1221 | |
| 1222 | /* |
| 1223 | * Shut off interrupts. |
| 1224 | */ |
| 1225 | xe_disable_intr(scp); |
| 1226 | |
| 1227 | /* |
| 1228 | * Power down. |
| 1229 | */ |
| 1230 | XE_SELECT_PAGE(4); |
| 1231 | XE_OUTB(XE_GPR1, 0); |
| 1232 | XE_SELECT_PAGE(0); |
| 1233 | if (scp->mohawk) { |
| 1234 | /* |
| 1235 | * set GP1 and GP2 as outputs (bits 2 & 3) |
| 1236 | * set GP1 high to power on the ML6692 (bit 0) |
| 1237 | * set GP2 low to power on the 10Mhz chip (bit 1) |
| 1238 | */ |
| 1239 | XE_SELECT_PAGE(4); |
| 1240 | XE_OUTB(XE_GPR0, XE_GPR0_GP2_SELECT|XE_GPR0_GP1_SELECT|XE_GPR0_GP1_OUT); |
| 1241 | } |
| 1242 | |
| 1243 | /* |
| 1244 | * ~IFF_RUNNING == interface down. |
| 1245 | */ |
| 1246 | scp->ifp->if_flags &= ~IFF_RUNNING; |
| 1247 | scp->ifp->if_flags &= ~IFF_OACTIVE; |
| 1248 | scp->ifp->if_timer = 0; |
| 1249 | |
| 1250 | crit_exit(); |
| 1251 | } |
| 1252 | |
| 1253 | |
| 1254 | /* |
| 1255 | * Enable interrupts from the card. |
| 1256 | */ |
| 1257 | static void |
| 1258 | xe_enable_intr(struct xe_softc *scp) { |
| 1259 | IFPRINTF(2, (scp->ifp, "enable_intr\n")); |
| 1260 | |
| 1261 | XE_SELECT_PAGE(0); |
| 1262 | XE_OUTB(XE_CR, XE_CR_ENABLE_INTR); /* Enable interrupts */ |
| 1263 | if (scp->modem && !scp->dingo) { /* This bit is just magic */ |
| 1264 | if (!(XE_INB(0x10) & 0x01)) { |
| 1265 | XE_OUTB(0x10, 0x11); /* Unmask master int enable bit */ |
| 1266 | } |
| 1267 | } |
| 1268 | } |
| 1269 | |
| 1270 | |
| 1271 | /* |
| 1272 | * Disable interrupts from the card. |
| 1273 | */ |
| 1274 | static void |
| 1275 | xe_disable_intr(struct xe_softc *scp) { |
| 1276 | IFPRINTF(2, (scp->ifp, "disable_intr\n")); |
| 1277 | |
| 1278 | XE_SELECT_PAGE(0); |
| 1279 | XE_OUTB(XE_CR, 0); /* Disable interrupts */ |
| 1280 | if (scp->modem && !scp->dingo) { /* More magic */ |
| 1281 | XE_OUTB(0x10, 0x10); /* Mask the master int enable bit */ |
| 1282 | } |
| 1283 | } |
| 1284 | |
| 1285 | |
| 1286 | /* |
| 1287 | * Set up multicast filter and promiscuous modes. |
| 1288 | */ |
| 1289 | static void |
| 1290 | xe_set_multicast(struct xe_softc *scp) { |
| 1291 | struct ifnet *ifp; |
| 1292 | struct ifmultiaddr *ifma; |
| 1293 | u_int count, i; |
| 1294 | |
| 1295 | ifp = &scp->arpcom.ac_if; |
| 1296 | |
| 1297 | IFPRINTF(2, (ifp, "set_multicast\n")); |
| 1298 | |
| 1299 | XE_SELECT_PAGE(0x42); |
| 1300 | |
| 1301 | /* Handle PROMISC flag */ |
| 1302 | if (ifp->if_flags & IFF_PROMISC) { |
| 1303 | XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_PROMISCUOUS); |
| 1304 | return; |
| 1305 | } |
| 1306 | else |
| 1307 | XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_PROMISCUOUS); |
| 1308 | |
| 1309 | /* Handle ALLMULTI flag */ |
| 1310 | if (ifp->if_flags & IFF_ALLMULTI) { |
| 1311 | XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_ALLMULTI); |
| 1312 | return; |
| 1313 | } |
| 1314 | else |
| 1315 | XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI); |
| 1316 | |
| 1317 | /* Iterate over multicast address list */ |
| 1318 | count = 0; |
| 1319 | LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { |
| 1320 | if (ifma->ifma_addr->sa_family != AF_LINK) |
| 1321 | continue; |
| 1322 | |
| 1323 | count++; |
| 1324 | |
| 1325 | if (count < 10) |
| 1326 | /* First 9 use Individual Addresses for exact matching */ |
| 1327 | xe_set_addr(scp, LLADDR((struct sockaddr_dl *)ifma->ifma_addr), count); |
| 1328 | else |
| 1329 | if (scp->mohawk) |
| 1330 | /* Use hash filter on Mohawk and Dingo */ |
| 1331 | xe_set_hash(scp, LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); |
| 1332 | else |
| 1333 | /* Nowhere else to put them on CE2 */ |
| 1334 | break; |
| 1335 | } |
| 1336 | |
| 1337 | IFPRINTF(2, (ifp, "set_multicast: count = %u\n", count)); |
| 1338 | |
| 1339 | /* Now do some cleanup and enable multicast handling as needed */ |
| 1340 | if (count == 0) { |
| 1341 | /* Disable all multicast handling */ |
| 1342 | |
| 1343 | XE_SELECT_PAGE(0x42); |
| 1344 | XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~(XE_SWC1_IA_ENABLE|XE_SWC1_ALLMULTI)); |
| 1345 | if (scp->mohawk) { |
| 1346 | XE_SELECT_PAGE(0x02); |
| 1347 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE); |
| 1348 | } |
| 1349 | } |
| 1350 | else if (count < 10) { |
| 1351 | /* Full in any unused Individual Addresses with our MAC address */ |
| 1352 | for (i = count + 1; i < 10; i++) |
| 1353 | xe_set_addr(scp, (u_int8_t *)(&scp->arpcom.ac_enaddr), i); |
| 1354 | /* Enable Individual Address matching only */ |
| 1355 | XE_SELECT_PAGE(0x42); |
| 1356 | XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) | XE_SWC1_IA_ENABLE); |
| 1357 | if (scp->mohawk) { |
| 1358 | XE_SELECT_PAGE(0x02); |
| 1359 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE); |
| 1360 | } |
| 1361 | } |
| 1362 | else { |
| 1363 | if (scp->mohawk) { |
| 1364 | /* Check whether hash table is full */ |
| 1365 | XE_SELECT_PAGE(0x58); |
| 1366 | for (i = 0x08; i < 0x10; i++) |
| 1367 | if (XE_INB(i) != 0xff) |
| 1368 | break; |
| 1369 | if (i == 0x10) { |
| 1370 | /* Hash table full - enable promiscuous multicast matching */ |
| 1371 | XE_SELECT_PAGE(0x42); |
| 1372 | XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_IA_ENABLE) | XE_SWC1_ALLMULTI); |
| 1373 | XE_SELECT_PAGE(0x02); |
| 1374 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) & ~XE_MSR_HASH_TABLE); |
| 1375 | } |
| 1376 | else { |
| 1377 | /* Enable hash table and Individual Address matching */ |
| 1378 | XE_SELECT_PAGE(0x42); |
| 1379 | XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_ALLMULTI) | XE_SWC1_IA_ENABLE); |
| 1380 | XE_SELECT_PAGE(0x02); |
| 1381 | XE_OUTB(XE_MSR, XE_INB(XE_MSR) | XE_MSR_HASH_TABLE); |
| 1382 | } |
| 1383 | } |
| 1384 | else { |
| 1385 | /* Enable promiscuous multicast matching */ |
| 1386 | XE_SELECT_PAGE(0x42); |
| 1387 | XE_OUTB(XE_SWC1, (XE_INB(XE_SWC1) & ~XE_SWC1_IA_ENABLE) | XE_SWC1_ALLMULTI); |
| 1388 | } |
| 1389 | } |
| 1390 | XE_SELECT_PAGE(0); |
| 1391 | } |
| 1392 | |
| 1393 | |
| 1394 | /* |
| 1395 | * Copy the Ethernet multicast address in addr to the on-chip registers for |
| 1396 | * Individual Address idx. Assumes that addr is really a multicast address |
| 1397 | * and that idx > 0 (slot 0 is always used for the card MAC address). |
| 1398 | */ |
| 1399 | static void |
| 1400 | xe_set_addr(struct xe_softc *scp, u_int8_t* addr, unsigned idx) { |
| 1401 | uint8_t page, reg; |
| 1402 | u_int i; |
| 1403 | |
| 1404 | /* |
| 1405 | * Individual Addresses are stored in registers 8-F of pages 0x50-0x57. IA1 |
| 1406 | * therefore starts at register 0xE on page 0x50. The expressions below |
| 1407 | * compute the starting page and register for any IA index > 0. |
| 1408 | */ |
| 1409 | --idx; |
| 1410 | page = 0x50 + idx%4 + idx/4*3; |
| 1411 | reg = 0x0e - 2 * (idx%4); |
| 1412 | |
| 1413 | IFPRINTF(3, (scp->ifp, "set_addr: idx = %u, page = 0x%02x, reg = 0x%02x\n", |
| 1414 | idx+1, page, reg)); |
| 1415 | |
| 1416 | /* |
| 1417 | * Copy the IA bytes. Note that the byte order is reversed for Mohawk and |
| 1418 | * Dingo wrt. CE2 hardware. |
| 1419 | */ |
| 1420 | XE_SELECT_PAGE(page); |
| 1421 | for (i = 0; i < 6; i++) { |
| 1422 | #ifdef XE_DEBUG |
| 1423 | if (i > 0) { |
| 1424 | DPRINTF(3, (":%02x", addr[i])); |
| 1425 | } else { |
| 1426 | IFPRINTF(3, (scp->ifp, "set_addr: %02x", addr[0])); |
| 1427 | } |
| 1428 | #endif |
| 1429 | XE_OUTB(reg, addr[scp->mohawk ? 5 - i : i]); |
| 1430 | if (++reg == 0x10) { |
| 1431 | reg = 0x08; |
| 1432 | XE_SELECT_PAGE(++page); |
| 1433 | } |
| 1434 | } |
| 1435 | DPRINTF(3, ("\n")); |
| 1436 | } |
| 1437 | |
| 1438 | |
| 1439 | /* |
| 1440 | * Set the appropriate bit in the multicast hash table for the supplied |
| 1441 | * Ethernet multicast address addr. Assumes that addr is really a multicast |
| 1442 | * address. |
| 1443 | */ |
| 1444 | static void |
| 1445 | xe_set_hash(struct xe_softc* scp, u_int8_t* addr) { |
| 1446 | u_int32_t crc = 0xffffffff; |
| 1447 | u_int8_t bit, byte, crc31, idx; |
| 1448 | u_int i, j; |
| 1449 | |
| 1450 | /* Compute CRC of the address -- standard Ethernet CRC function */ |
| 1451 | for (i = 0; i < 6; i++) { |
| 1452 | byte = addr[i]; |
| 1453 | for (j = 1; j <= 8; j++) { |
| 1454 | if (crc & 0x80000000) |
| 1455 | crc31 = 0x01; |
| 1456 | else |
| 1457 | crc31 = 0; |
| 1458 | bit = crc31 ^ (byte & 0x01); |
| 1459 | crc <<= 1; |
| 1460 | byte >>= 1; |
| 1461 | if (bit) |
| 1462 | crc = (crc ^ XE_CRC_POLY)|1; |
| 1463 | } |
| 1464 | } |
| 1465 | |
| 1466 | IFPRINTF(3, (scp->ifp, "set_hash: CRC = 0x%08x\n", crc)); |
| 1467 | |
| 1468 | /* Hash table index = 6 msbs of CRC, reversed */ |
| 1469 | for (i = 0, idx = 0; i < 6; i++) { |
| 1470 | idx >>= 1; |
| 1471 | if (crc & 0x80000000) { |
| 1472 | idx |= 0x20; |
| 1473 | } |
| 1474 | crc <<= 1; |
| 1475 | } |
| 1476 | |
| 1477 | /* Top 3 bits of idx give register - 8, bottom 3 give bit within register */ |
| 1478 | byte = idx >> 3 | 0x08; |
| 1479 | bit = 0x01 << (idx & 0x07); |
| 1480 | |
| 1481 | IFPRINTF(3, (scp->ifp, |
| 1482 | "set_hash: idx = 0x%02x, byte = 0x%02x, bit = 0x%02x\n", |
| 1483 | idx, byte, bit)); |
| 1484 | |
| 1485 | XE_SELECT_PAGE(0x58); |
| 1486 | XE_OUTB(byte, XE_INB(byte) | bit); |
| 1487 | } |
| 1488 | |
| 1489 | |
| 1490 | /* |
| 1491 | * Write an outgoing packet to the card using programmed I/O. |
| 1492 | */ |
| 1493 | static int |
| 1494 | xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp) { |
| 1495 | u_int len, pad; |
| 1496 | u_char wantbyte; |
| 1497 | u_int8_t *data; |
| 1498 | u_int8_t savebyte[2]; |
| 1499 | |
| 1500 | /* Get total packet length */ |
| 1501 | if (mbp->m_flags & M_PKTHDR) |
| 1502 | len = mbp->m_pkthdr.len; |
| 1503 | else { |
| 1504 | struct mbuf* mbp2 = mbp; |
| 1505 | for (len = 0; mbp2 != NULL; len += mbp2->m_len, mbp2 = mbp2->m_next); |
| 1506 | } |
| 1507 | |
| 1508 | IFPRINTF(3, (scp->ifp, "pio_write_packet: len = %u\n", len)); |
| 1509 | |
| 1510 | /* Packets < minimum length may need to be padded out */ |
| 1511 | pad = 0; |
| 1512 | if (len < scp->tx_min) { |
| 1513 | pad = scp->tx_min - len; |
| 1514 | len = scp->tx_min; |
| 1515 | } |
| 1516 | |
| 1517 | /* Check transmit buffer space */ |
| 1518 | XE_SELECT_PAGE(0); |
| 1519 | XE_OUTW(XE_TRS, len+2); /* Only effective on rev. 1 CE2 cards */ |
| 1520 | if ((XE_INW(XE_TSO) & 0x7fff) <= len + 2) |
| 1521 | return 1; |
| 1522 | |
| 1523 | /* Send packet length to card */ |
| 1524 | XE_OUTW(XE_EDP, len); |
| 1525 | |
| 1526 | /* |
| 1527 | * Write packet to card using PIO (code stolen from the ed driver) |
| 1528 | */ |
| 1529 | wantbyte = 0; |
| 1530 | while (mbp != NULL) { |
| 1531 | len = mbp->m_len; |
| 1532 | if (len > 0) { |
| 1533 | data = mtod(mbp, caddr_t); |
| 1534 | if (wantbyte) { /* Finish the last word */ |
| 1535 | savebyte[1] = *data; |
| 1536 | XE_OUTW(XE_EDP, *(u_short *)savebyte); |
| 1537 | data++; |
| 1538 | len--; |
| 1539 | wantbyte = 0; |
| 1540 | } |
| 1541 | if (len > 1) { /* Output contiguous words */ |
| 1542 | bus_space_write_multi_2(scp->bst, scp->bsh, XE_EDP, (u_int16_t *) data, |
| 1543 | len >> 1); |
| 1544 | data += len & ~1; |
| 1545 | len &= 1; |
| 1546 | } |
| 1547 | if (len == 1) { /* Save last byte, if necessary */ |
| 1548 | savebyte[0] = *data; |
| 1549 | wantbyte = 1; |
| 1550 | } |
| 1551 | } |
| 1552 | mbp = mbp->m_next; |
| 1553 | } |
| 1554 | |
| 1555 | /* |
| 1556 | * Send last byte of odd-length packets |
| 1557 | */ |
| 1558 | if (wantbyte) |
| 1559 | XE_OUTB(XE_EDP, savebyte[0]); |
| 1560 | |
| 1561 | /* |
| 1562 | * Can just tell CE3 cards to send; short packets will be padded out with |
| 1563 | * random cruft automatically. For CE2, manually pad the packet with |
| 1564 | * garbage; it will be sent when the required number or bytes have been |
| 1565 | * delivered to the card. |
| 1566 | */ |
| 1567 | if (scp->mohawk) |
| 1568 | XE_OUTB(XE_CR, XE_CR_TX_PACKET | XE_CR_RESTART_TX | XE_CR_ENABLE_INTR); |
| 1569 | else if (pad > 0) { |
| 1570 | if (pad & 0x01) |
| 1571 | XE_OUTB(XE_EDP, 0xaa); |
| 1572 | pad >>= 1; |
| 1573 | while (pad > 0) { |
| 1574 | XE_OUTW(XE_EDP, 0xdead); |
| 1575 | pad--; |
| 1576 | } |
| 1577 | } |
| 1578 | |
| 1579 | return 0; |
| 1580 | } |
| 1581 | |
| 1582 | |
| 1583 | /************************************************************** |
| 1584 | * * |
| 1585 | * M I I F U N C T I O N S * |
| 1586 | * * |
| 1587 | **************************************************************/ |
| 1588 | |
| 1589 | /* |
| 1590 | * Alternative MII/PHY handling code adapted from the xl driver. It doesn't |
| 1591 | * seem to work any better than the xirc2_ps stuff, but it's cleaner code. |
| 1592 | * XXX - this stuff shouldn't be here. It should all be abstracted off to |
| 1593 | * XXX - some kind of common MII-handling code, shared by all drivers. But |
| 1594 | * XXX - that's a whole other mission. |
| 1595 | */ |
| 1596 | #define XE_MII_SET(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) | (x)) |
| 1597 | #define XE_MII_CLR(x) XE_OUTB(XE_GPR2, (XE_INB(XE_GPR2) | 0x04) & ~(x)) |
| 1598 | |
| 1599 | |
| 1600 | /* |
| 1601 | * Sync the PHYs by setting data bit and strobing the clock 32 times. |
| 1602 | */ |
| 1603 | static void |
| 1604 | xe_mii_sync(struct xe_softc *scp) { |
| 1605 | int i; |
| 1606 | |
| 1607 | XE_SELECT_PAGE(2); |
| 1608 | XE_MII_SET(XE_MII_DIR|XE_MII_WRD); |
| 1609 | |
| 1610 | for (i = 0; i < 32; i++) { |
| 1611 | XE_MII_SET(XE_MII_CLK); |
| 1612 | DELAY(1); |
| 1613 | XE_MII_CLR(XE_MII_CLK); |
| 1614 | DELAY(1); |
| 1615 | } |
| 1616 | } |
| 1617 | |
| 1618 | |
| 1619 | /* |
| 1620 | * Look for a MII-compliant PHY. If we find one, reset it. |
| 1621 | */ |
| 1622 | static int |
| 1623 | xe_mii_init(struct xe_softc *scp) { |
| 1624 | u_int16_t status; |
| 1625 | |
| 1626 | status = xe_phy_readreg(scp, PHY_BMSR); |
| 1627 | if ((status & 0xff00) != 0x7800) { |
| 1628 | IFPRINTF(2, (scp->ifp, "no PHY found, %0x\n", status)); |
| 1629 | return 0; |
| 1630 | } |
| 1631 | else { |
| 1632 | IFPRINTF(2, (scp->ifp, "PHY OK!\n")); |
| 1633 | |
| 1634 | /* Reset the PHY */ |
| 1635 | xe_phy_writereg(scp, PHY_BMCR, PHY_BMCR_RESET); |
| 1636 | DELAY(500); |
| 1637 | while(xe_phy_readreg(scp, PHY_BMCR) & PHY_BMCR_RESET); |
| 1638 | XE_MII_DUMP(scp); |
| 1639 | return 1; |
| 1640 | } |
| 1641 | } |
| 1642 | |
| 1643 | |
| 1644 | /* |
| 1645 | * Clock a series of bits through the MII. |
| 1646 | */ |
| 1647 | static void |
| 1648 | xe_mii_send(struct xe_softc *scp, u_int32_t bits, int cnt) { |
| 1649 | int i; |
| 1650 | |
| 1651 | XE_SELECT_PAGE(2); |
| 1652 | XE_MII_CLR(XE_MII_CLK); |
| 1653 | |
| 1654 | for (i = (0x1 << (cnt - 1)); i; i >>= 1) { |
| 1655 | if (bits & i) { |
| 1656 | XE_MII_SET(XE_MII_WRD); |
| 1657 | } else { |
| 1658 | XE_MII_CLR(XE_MII_WRD); |
| 1659 | } |
| 1660 | DELAY(1); |
| 1661 | XE_MII_CLR(XE_MII_CLK); |
| 1662 | DELAY(1); |
| 1663 | XE_MII_SET(XE_MII_CLK); |
| 1664 | } |
| 1665 | } |
| 1666 | |
| 1667 | |
| 1668 | /* |
| 1669 | * Read an PHY register through the MII. |
| 1670 | */ |
| 1671 | static int |
| 1672 | xe_mii_readreg(struct xe_softc *scp, struct xe_mii_frame *frame) { |
| 1673 | int i, ack; |
| 1674 | |
| 1675 | crit_enter(); |
| 1676 | |
| 1677 | /* |
| 1678 | * Set up frame for RX. |
| 1679 | */ |
| 1680 | frame->mii_stdelim = XE_MII_STARTDELIM; |
| 1681 | frame->mii_opcode = XE_MII_READOP; |
| 1682 | frame->mii_turnaround = 0; |
| 1683 | frame->mii_data = 0; |
| 1684 | |
| 1685 | XE_SELECT_PAGE(2); |
| 1686 | XE_OUTB(XE_GPR2, 0); |
| 1687 | |
| 1688 | /* |
| 1689 | * Turn on data xmit. |
| 1690 | */ |
| 1691 | XE_MII_SET(XE_MII_DIR); |
| 1692 | |
| 1693 | xe_mii_sync(scp); |
| 1694 | |
| 1695 | /* |
| 1696 | * Send command/address info. |
| 1697 | */ |
| 1698 | xe_mii_send(scp, frame->mii_stdelim, 2); |
| 1699 | xe_mii_send(scp, frame->mii_opcode, 2); |
| 1700 | xe_mii_send(scp, frame->mii_phyaddr, 5); |
| 1701 | xe_mii_send(scp, frame->mii_regaddr, 5); |
| 1702 | |
| 1703 | /* Idle bit */ |
| 1704 | XE_MII_CLR((XE_MII_CLK|XE_MII_WRD)); |
| 1705 | DELAY(1); |
| 1706 | XE_MII_SET(XE_MII_CLK); |
| 1707 | DELAY(1); |
| 1708 | |
| 1709 | /* Turn off xmit. */ |
| 1710 | XE_MII_CLR(XE_MII_DIR); |
| 1711 | |
| 1712 | /* Check for ack */ |
| 1713 | XE_MII_CLR(XE_MII_CLK); |
| 1714 | DELAY(1); |
| 1715 | ack = XE_INB(XE_GPR2) & XE_MII_RDD; |
| 1716 | XE_MII_SET(XE_MII_CLK); |
| 1717 | DELAY(1); |
| 1718 | |
| 1719 | /* |
| 1720 | * Now try reading data bits. If the ack failed, we still |
| 1721 | * need to clock through 16 cycles to keep the PHY(s) in sync. |
| 1722 | */ |
| 1723 | if (ack) { |
| 1724 | for(i = 0; i < 16; i++) { |
| 1725 | XE_MII_CLR(XE_MII_CLK); |
| 1726 | DELAY(1); |
| 1727 | XE_MII_SET(XE_MII_CLK); |
| 1728 | DELAY(1); |
| 1729 | } |
| 1730 | goto fail; |
| 1731 | } |
| 1732 | |
| 1733 | for (i = 0x8000; i; i >>= 1) { |
| 1734 | XE_MII_CLR(XE_MII_CLK); |
| 1735 | DELAY(1); |
| 1736 | if (!ack) { |
| 1737 | if (XE_INB(XE_GPR2) & XE_MII_RDD) |
| 1738 | frame->mii_data |= i; |
| 1739 | DELAY(1); |
| 1740 | } |
| 1741 | XE_MII_SET(XE_MII_CLK); |
| 1742 | DELAY(1); |
| 1743 | } |
| 1744 | |
| 1745 | fail: |
| 1746 | |
| 1747 | XE_MII_CLR(XE_MII_CLK); |
| 1748 | DELAY(1); |
| 1749 | XE_MII_SET(XE_MII_CLK); |
| 1750 | DELAY(1); |
| 1751 | |
| 1752 | crit_exit(); |
| 1753 | |
| 1754 | if (ack) |
| 1755 | return(1); |
| 1756 | return(0); |
| 1757 | } |
| 1758 | |
| 1759 | |
| 1760 | /* |
| 1761 | * Write to a PHY register through the MII. |
| 1762 | */ |
| 1763 | static int |
| 1764 | xe_mii_writereg(struct xe_softc *scp, struct xe_mii_frame *frame) { |
| 1765 | |
| 1766 | crit_enter(); |
| 1767 | |
| 1768 | /* |
| 1769 | * Set up frame for TX. |
| 1770 | */ |
| 1771 | frame->mii_stdelim = XE_MII_STARTDELIM; |
| 1772 | frame->mii_opcode = XE_MII_WRITEOP; |
| 1773 | frame->mii_turnaround = XE_MII_TURNAROUND; |
| 1774 | |
| 1775 | XE_SELECT_PAGE(2); |
| 1776 | |
| 1777 | /* |
| 1778 | * Turn on data output. |
| 1779 | */ |
| 1780 | XE_MII_SET(XE_MII_DIR); |
| 1781 | |
| 1782 | xe_mii_sync(scp); |
| 1783 | |
| 1784 | xe_mii_send(scp, frame->mii_stdelim, 2); |
| 1785 | xe_mii_send(scp, frame->mii_opcode, 2); |
| 1786 | xe_mii_send(scp, frame->mii_phyaddr, 5); |
| 1787 | xe_mii_send(scp, frame->mii_regaddr, 5); |
| 1788 | xe_mii_send(scp, frame->mii_turnaround, 2); |
| 1789 | xe_mii_send(scp, frame->mii_data, 16); |
| 1790 | |
| 1791 | /* Idle bit. */ |
| 1792 | XE_MII_SET(XE_MII_CLK); |
| 1793 | DELAY(1); |
| 1794 | XE_MII_CLR(XE_MII_CLK); |
| 1795 | DELAY(1); |
| 1796 | |
| 1797 | /* |
| 1798 | * Turn off xmit. |
| 1799 | */ |
| 1800 | XE_MII_CLR(XE_MII_DIR); |
| 1801 | |
| 1802 | crit_exit(); |
| 1803 | |
| 1804 | return(0); |
| 1805 | } |
| 1806 | |
| 1807 | |
| 1808 | /* |
| 1809 | * Read a register from the PHY. |
| 1810 | */ |
| 1811 | static u_int16_t |
| 1812 | xe_phy_readreg(struct xe_softc *scp, u_int16_t reg) { |
| 1813 | struct xe_mii_frame frame; |
| 1814 | |
| 1815 | bzero((char *)&frame, sizeof(frame)); |
| 1816 | |
| 1817 | frame.mii_phyaddr = 0; |
| 1818 | frame.mii_regaddr = reg; |
| 1819 | xe_mii_readreg(scp, &frame); |
| 1820 | |
| 1821 | return(frame.mii_data); |
| 1822 | } |
| 1823 | |
| 1824 | |
| 1825 | /* |
| 1826 | * Write to a PHY register. |
| 1827 | */ |
| 1828 | static void |
| 1829 | xe_phy_writereg(struct xe_softc *scp, u_int16_t reg, u_int16_t data) { |
| 1830 | struct xe_mii_frame frame; |
| 1831 | |
| 1832 | bzero((char *)&frame, sizeof(frame)); |
| 1833 | |
| 1834 | frame.mii_phyaddr = 0; |
| 1835 | frame.mii_regaddr = reg; |
| 1836 | frame.mii_data = data; |
| 1837 | xe_mii_writereg(scp, &frame); |
| 1838 | |
| 1839 | return; |
| 1840 | } |
| 1841 | |
| 1842 | |
| 1843 | /* |
| 1844 | * A bit of debugging code. |
| 1845 | */ |
| 1846 | static void |
| 1847 | xe_mii_dump(struct xe_softc *scp) { |
| 1848 | int i; |
| 1849 | |
| 1850 | crit_enter(); |
| 1851 | |
| 1852 | if_printf(scp->ifp, "MII registers: "); |
| 1853 | for (i = 0; i < 2; i++) { |
| 1854 | printf(" %d:%04x", i, xe_phy_readreg(scp, i)); |
| 1855 | } |
| 1856 | for (i = 4; i < 7; i++) { |
| 1857 | printf(" %d:%04x", i, xe_phy_readreg(scp, i)); |
| 1858 | } |
| 1859 | printf("\n"); |
| 1860 | |
| 1861 | crit_exit(); |
| 1862 | } |
| 1863 | |
| 1864 | static void |
| 1865 | xe_reg_dump(struct xe_softc *scp) { |
| 1866 | int page, i; |
| 1867 | |
| 1868 | crit_enter(); |
| 1869 | |
| 1870 | if_printf(scp->ifp, "Common registers: "); |
| 1871 | for (i = 0; i < 8; i++) { |
| 1872 | printf(" %2.2x", XE_INB(i)); |
| 1873 | } |
| 1874 | printf("\n"); |
| 1875 | |
| 1876 | for (page = 0; page <= 8; page++) { |
| 1877 | if_printf(scp->ifp, "Register page %2.2x: ", page); |
| 1878 | XE_SELECT_PAGE(page); |
| 1879 | for (i = 8; i < 16; i++) { |
| 1880 | printf(" %2.2x", XE_INB(i)); |
| 1881 | } |
| 1882 | printf("\n"); |
| 1883 | } |
| 1884 | |
| 1885 | for (page = 0x10; page < 0x5f; page++) { |
| 1886 | if ((page >= 0x11 && page <= 0x3f) || |
| 1887 | (page == 0x41) || |
| 1888 | (page >= 0x43 && page <= 0x4f) || |
| 1889 | (page >= 0x59)) |
| 1890 | continue; |
| 1891 | if_printf(scp->ifp, "Register page %2.2x: ", page); |
| 1892 | XE_SELECT_PAGE(page); |
| 1893 | for (i = 8; i < 16; i++) { |
| 1894 | printf(" %2.2x", XE_INB(i)); |
| 1895 | } |
| 1896 | printf("\n"); |
| 1897 | } |
| 1898 | |
| 1899 | crit_exit(); |
| 1900 | } |
| 1901 | |
| 1902 | int |
| 1903 | xe_activate(device_t dev) |
| 1904 | { |
| 1905 | struct xe_softc *sc = device_get_softc(dev); |
| 1906 | int start, i; |
| 1907 | |
| 1908 | DEVPRINTF(2, (dev, "activate\n")); |
| 1909 | |
| 1910 | if (!sc->modem) { |
| 1911 | sc->port_rid = 0; /* 0 is managed by pccard */ |
| 1912 | sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, |
| 1913 | &sc->port_rid, 0, ~0, 16, RF_ACTIVE); |
| 1914 | } else if (sc->dingo) { |
| 1915 | /* |
| 1916 | * Find a 16 byte aligned ioport for the card. |
| 1917 | */ |
| 1918 | DEVPRINTF(1, (dev, "Finding an aligned port for RealPort\n")); |
| 1919 | sc->port_rid = 1; /* 0 is managed by pccard */ |
| 1920 | start = 0x100; |
| 1921 | do { |
| 1922 | sc->port_res = bus_alloc_resource(dev, |
| 1923 | SYS_RES_IOPORT, &sc->port_rid, start, 0x3ff, 16, |
| 1924 | RF_ACTIVE); |
| 1925 | if (sc->port_res == 0) |
| 1926 | break; /* we failed */ |
| 1927 | if ((rman_get_start(sc->port_res) & 0xf) == 0) |
| 1928 | break; /* good */ |
| 1929 | bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid, |
| 1930 | sc->port_res); |
| 1931 | start = (rman_get_start(sc->port_res) + 15) & ~0xf; |
| 1932 | } while (1); |
| 1933 | DEVPRINTF(1, (dev, "RealPort port 0x%0lx, size 0x%0lx\n", |
| 1934 | bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid), |
| 1935 | bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid))); |
| 1936 | } |
| 1937 | else if (sc->ce2) { |
| 1938 | /* |
| 1939 | * Find contiguous I/O port for the Ethernet function on CEM2 and |
| 1940 | * CEM3 cards. We allocate window 0 wherever pccard has decided |
| 1941 | * it should be, then find an available window adjacent to it for |
| 1942 | * the second function. Not sure that both windows are actually |
| 1943 | * needed. |
| 1944 | */ |
| 1945 | DEVPRINTF(1, (dev, "Finding I/O port for CEM2/CEM3\n")); |
| 1946 | sc->ce2_port_rid = 0; /* 0 is managed by pccard */ |
| 1947 | sc->ce2_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, |
| 1948 | &sc->ce2_port_rid, 0, ~0, |
| 1949 | 8, RF_ACTIVE); |
| 1950 | if (!sc->ce2_port_res) { |
| 1951 | device_printf(dev, "Cannot allocate I/O port for modem\n"); |
| 1952 | return ENOMEM; |
| 1953 | } |
| 1954 | |
| 1955 | sc->port_rid = 1; |
| 1956 | start = bus_get_resource_start(dev, SYS_RES_IOPORT, |
| 1957 | sc->ce2_port_rid); |
| 1958 | for (i = 0; i < 2; i++) { |
| 1959 | start += (i == 0 ? 8 : -24); |
| 1960 | sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, |
| 1961 | &sc->port_rid, start, |
| 1962 | start + 18, 18, RF_ACTIVE); |
| 1963 | if (sc->port_res == 0) |
| 1964 | continue; /* Failed, try again if possible */ |
| 1965 | if (bus_get_resource_start(dev, SYS_RES_IOPORT, |
| 1966 | sc->port_rid) == start) |
| 1967 | break; /* Success! */ |
| 1968 | |
| 1969 | bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid, |
| 1970 | sc->port_res); |
| 1971 | sc->port_res = 0; |
| 1972 | } |
| 1973 | DEVPRINTF(1, (dev, "CEM2/CEM3 port 0x%0lx, size 0x%0lx\n", |
| 1974 | bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid), |
| 1975 | bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid))); |
| 1976 | } |
| 1977 | if (!sc->port_res) { |
| 1978 | device_printf(dev, "Cannot allocate ioport\n"); |
| 1979 | return ENOMEM; |
| 1980 | } |
| 1981 | |
| 1982 | sc->irq_rid = 0; |
| 1983 | sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, |
| 1984 | RF_ACTIVE); |
| 1985 | if (!sc->irq_res) { |
| 1986 | device_printf(dev, "Cannot allocate irq\n"); |
| 1987 | xe_deactivate(dev); |
| 1988 | return ENOMEM; |
| 1989 | } |
| 1990 | |
| 1991 | sc->bst = rman_get_bustag(sc->port_res); |
| 1992 | sc->bsh = rman_get_bushandle(sc->port_res); |
| 1993 | return (0); |
| 1994 | } |
| 1995 | |
| 1996 | void |
| 1997 | xe_deactivate(device_t dev) |
| 1998 | { |
| 1999 | struct xe_softc *sc = device_get_softc(dev); |
| 2000 | |
| 2001 | DEVPRINTF(2, (dev, "deactivate\n")); |
| 2002 | xe_disable_intr(sc); |
| 2003 | |
| 2004 | if (sc->port_res) |
| 2005 | bus_release_resource(dev, SYS_RES_IOPORT, sc->port_rid, |
| 2006 | sc->port_res); |
| 2007 | sc->port_res = 0; |
| 2008 | if (sc->ce2_port_res) |
| 2009 | bus_release_resource(dev, SYS_RES_IOPORT, sc->ce2_port_rid, |
| 2010 | sc->ce2_port_res); |
| 2011 | sc->ce2_port_res = 0; |
| 2012 | if (sc->irq_res) |
| 2013 | bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, |
| 2014 | sc->irq_res); |
| 2015 | sc->irq_res = 0; |
| 2016 | } |