1 /* $NetBSD: if_aue.c,v 1.89 2004/11/03 22:59:31 rjs Exp $ */ 2 /* 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/dev/usb/if_aue.c,v 1.11 2000/01/14 01:36:14 wpaul Exp $ 34 */ 35 36 /* 37 * ADMtek AN986 Pegasus and AN8511 Pegasus II USB to ethernet driver. 38 * Datasheet is available from http://www.admtek.com.tw. 39 * 40 * Written by Bill Paul <wpaul@ee.columbia.edu> 41 * Electrical Engineering Department 42 * Columbia University, New York City 43 */ 44 45 /* 46 * The Pegasus chip uses four USB "endpoints" to provide 10/100 ethernet 47 * support: the control endpoint for reading/writing registers, burst 48 * read endpoint for packet reception, burst write for packet transmission 49 * and one for "interrupts." The chip uses the same RX filter scheme 50 * as the other ADMtek ethernet parts: one perfect filter entry for the 51 * the station address and a 64-bit multicast hash table. The chip supports 52 * both MII and HomePNA attachments. 53 * 54 * Since the maximum data transfer speed of USB is supposed to be 12Mbps, 55 * you're never really going to get 100Mbps speeds from this device. I 56 * think the idea is to allow the device to connect to 10 or 100Mbps 57 * networks, not necessarily to provide 100Mbps performance. Also, since 58 * the controller uses an external PHY chip, it's possible that board 59 * designers might simply choose a 10Mbps PHY. 60 * 61 * Registers are accessed using usbd_do_request(). Packet transfers are 62 * done using usbd_transfer() and friends. 63 */ 64 65 /* 66 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson. 67 */ 68 69 /* 70 * TODO: 71 * better error messages from rxstat 72 * split out if_auevar.h 73 * add thread to avoid register reads from interrupt context 74 * more error checks 75 * investigate short rx problem 76 * proper cleanup on errors 77 */ 78 79 #include <sys/cdefs.h> 80 __KERNEL_RCSID(0, "$NetBSD: if_aue.c,v 1.89 2004/11/03 22:59:31 rjs Exp $"); 81 82 #if defined(__NetBSD__) 83 #include "opt_inet.h" 84 #include "opt_ns.h" 85 #include "bpfilter.h" 86 #include "rnd.h" 87 #elif defined(__OpenBSD__) 88 #include "bpfilter.h" 89 #endif /* defined(__OpenBSD__) */ 90 91 #include <sys/param.h> 92 #include <sys/systm.h> 93 #include <sys/sockio.h> 94 #include <sys/lock.h> 95 #include <sys/mbuf.h> 96 #include <sys/malloc.h> 97 #include <sys/kernel.h> 98 #include <sys/socket.h> 99 100 #include <sys/device.h> 101 #if NRND > 0 102 #include <sys/rnd.h> 103 #endif 104 105 #include <net/if.h> 106 #if defined(__NetBSD__) 107 #include <net/if_arp.h> 108 #endif 109 #include <net/if_dl.h> 110 #include <net/if_media.h> 111 112 #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m)) 113 114 #if NBPFILTER > 0 115 #include <net/bpf.h> 116 #endif 117 118 #if defined(__NetBSD__) 119 #include <net/if_ether.h> 120 #ifdef INET 121 #include <netinet/in.h> 122 #include <netinet/if_inarp.h> 123 #endif 124 #endif /* defined(__NetBSD__) */ 125 126 #if defined(__OpenBSD__) 127 #ifdef INET 128 #include <netinet/in.h> 129 #include <netinet/in_systm.h> 130 #include <netinet/in_var.h> 131 #include <netinet/ip.h> 132 #include <netinet/if_ether.h> 133 #endif 134 #endif /* defined(__OpenBSD__) */ 135 136 #ifdef NS 137 #include <netns/ns.h> 138 #include <netns/ns_if.h> 139 #endif 140 141 #include <dev/mii/mii.h> 142 #include <dev/mii/miivar.h> 143 144 #include <dev/usb/usb.h> 145 #include <dev/usb/usbdi.h> 146 #include <dev/usb/usbdi_util.h> 147 #include <dev/usb/usbdevs.h> 148 149 #include <dev/usb/if_auereg.h> 150 151 #ifdef AUE_DEBUG 152 #define DPRINTF(x) if (auedebug) logprintf x 153 #define DPRINTFN(n,x) if (auedebug >= (n)) logprintf x 154 int auedebug = 0; 155 #else 156 #define DPRINTF(x) 157 #define DPRINTFN(n,x) 158 #endif 159 160 /* 161 * Various supported device vendors/products. 162 */ 163 struct aue_type { 164 struct usb_devno aue_dev; 165 u_int16_t aue_flags; 166 #define LSYS 0x0001 /* use Linksys reset */ 167 #define PNA 0x0002 /* has Home PNA */ 168 #define PII 0x0004 /* Pegasus II chip */ 169 }; 170 171 Static const struct aue_type aue_devs[] = { 172 {{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460B}, PII }, 173 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX1}, PNA|PII }, 174 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX2}, PII }, 175 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UFE1000}, LSYS }, 176 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX4}, PNA }, 177 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX5}, PNA }, 178 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX6}, PII }, 179 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX7}, PII }, 180 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX8}, PII }, 181 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX9}, PNA }, 182 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX10}, 0 }, 183 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_DSB650TX_PNA}, 0 }, 184 {{ USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_USB320_EC}, 0 }, 185 {{ USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_SS1001}, PII }, 186 {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUS}, PNA }, 187 {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII}, PII }, 188 {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII_2}, PII }, 189 {{ USB_VENDOR_AEI, USB_PRODUCT_AEI_USBTOLAN}, PII }, 190 {{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_USB2LAN}, PII }, 191 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB100}, 0 }, 192 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBLP100}, PNA }, 193 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBEL100}, 0 }, 194 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBE100}, PII }, 195 {{ USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_HNE200}, PII }, 196 {{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TX}, 0 }, 197 {{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXS},PII }, 198 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX4}, LSYS|PII }, 199 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX1}, LSYS }, 200 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX}, LSYS }, 201 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX_PNA}, PNA }, 202 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX3}, LSYS|PII }, 203 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX2}, LSYS|PII }, 204 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650}, 0 }, 205 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX0}, 0 }, 206 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX1}, LSYS }, 207 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX2}, 0 }, 208 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX3}, LSYS }, 209 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBLTX}, PII }, 210 {{ USB_VENDOR_ELSA, USB_PRODUCT_ELSA_USB2ETHERNET}, 0 }, 211 {{ USB_VENDOR_HAWKING, USB_PRODUCT_HAWKING_UF100}, PII }, 212 {{ USB_VENDOR_HP, USB_PRODUCT_HP_HN210E}, PII }, 213 {{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTX}, 0 }, 214 {{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTXS}, PII }, 215 {{ USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_KNU101TX}, 0 }, 216 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TX1}, LSYS|PII }, 217 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T}, LSYS }, 218 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB100TX}, LSYS }, 219 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB100H1}, LSYS|PNA }, 220 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TA}, LSYS }, 221 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TX2}, LSYS|PII }, 222 {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUATX1}, 0 }, 223 {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUATX5}, 0 }, 224 {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUA2TX5}, PII }, 225 {{ USB_VENDOR_MICROSOFT, USB_PRODUCT_MICROSOFT_MN110}, PII }, 226 {{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA101}, PII }, 227 {{ USB_VENDOR_SIEMENS, USB_PRODUCT_SIEMENS_SPEEDSTREAM}, PII }, 228 {{ USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTNIC},PII }, 229 {{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2202USB}, 0 }, 230 {{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2206USB}, PII }, 231 {{ USB_VENDOR_SOHOWARE, USB_PRODUCT_SOHOWARE_NUB100}, 0 }, 232 }; 233 #define aue_lookup(v, p) ((struct aue_type *)usb_lookup(aue_devs, v, p)) 234 235 USB_DECLARE_DRIVER(aue); 236 237 Static void aue_reset_pegasus_II(struct aue_softc *sc); 238 Static int aue_tx_list_init(struct aue_softc *); 239 Static int aue_rx_list_init(struct aue_softc *); 240 Static int aue_newbuf(struct aue_softc *, struct aue_chain *, struct mbuf *); 241 Static int aue_send(struct aue_softc *, struct mbuf *, int); 242 Static void aue_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 243 Static void aue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 244 Static void aue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 245 Static void aue_tick(void *); 246 Static void aue_tick_task(void *); 247 Static void aue_start(struct ifnet *); 248 Static int aue_ioctl(struct ifnet *, u_long, caddr_t); 249 Static void aue_init(void *); 250 Static void aue_stop(struct aue_softc *); 251 Static void aue_watchdog(struct ifnet *); 252 Static int aue_openpipes(struct aue_softc *); 253 Static int aue_ifmedia_upd(struct ifnet *); 254 Static void aue_ifmedia_sts(struct ifnet *, struct ifmediareq *); 255 256 Static int aue_eeprom_getword(struct aue_softc *, int); 257 Static void aue_read_mac(struct aue_softc *, u_char *); 258 Static int aue_miibus_readreg(device_ptr_t, int, int); 259 Static void aue_miibus_writereg(device_ptr_t, int, int, int); 260 Static void aue_miibus_statchg(device_ptr_t); 261 262 Static void aue_lock_mii(struct aue_softc *); 263 Static void aue_unlock_mii(struct aue_softc *); 264 265 Static void aue_setmulti(struct aue_softc *); 266 Static u_int32_t aue_crc(caddr_t); 267 Static void aue_reset(struct aue_softc *); 268 269 Static int aue_csr_read_1(struct aue_softc *, int); 270 Static int aue_csr_write_1(struct aue_softc *, int, int); 271 Static int aue_csr_read_2(struct aue_softc *, int); 272 Static int aue_csr_write_2(struct aue_softc *, int, int); 273 274 #define AUE_SETBIT(sc, reg, x) \ 275 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) | (x)) 276 277 #define AUE_CLRBIT(sc, reg, x) \ 278 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x)) 279 280 Static int 281 aue_csr_read_1(struct aue_softc *sc, int reg) 282 { 283 usb_device_request_t req; 284 usbd_status err; 285 uByte val = 0; 286 287 if (sc->aue_dying) 288 return (0); 289 290 req.bmRequestType = UT_READ_VENDOR_DEVICE; 291 req.bRequest = AUE_UR_READREG; 292 USETW(req.wValue, 0); 293 USETW(req.wIndex, reg); 294 USETW(req.wLength, 1); 295 296 err = usbd_do_request(sc->aue_udev, &req, &val); 297 298 if (err) { 299 DPRINTF(("%s: aue_csr_read_1: reg=0x%x err=%s\n", 300 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err))); 301 return (0); 302 } 303 304 return (val); 305 } 306 307 Static int 308 aue_csr_read_2(struct aue_softc *sc, int reg) 309 { 310 usb_device_request_t req; 311 usbd_status err; 312 uWord val; 313 314 if (sc->aue_dying) 315 return (0); 316 317 req.bmRequestType = UT_READ_VENDOR_DEVICE; 318 req.bRequest = AUE_UR_READREG; 319 USETW(req.wValue, 0); 320 USETW(req.wIndex, reg); 321 USETW(req.wLength, 2); 322 323 err = usbd_do_request(sc->aue_udev, &req, &val); 324 325 if (err) { 326 DPRINTF(("%s: aue_csr_read_2: reg=0x%x err=%s\n", 327 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err))); 328 return (0); 329 } 330 331 return (UGETW(val)); 332 } 333 334 Static int 335 aue_csr_write_1(struct aue_softc *sc, int reg, int aval) 336 { 337 usb_device_request_t req; 338 usbd_status err; 339 uByte val; 340 341 if (sc->aue_dying) 342 return (0); 343 344 val = aval; 345 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 346 req.bRequest = AUE_UR_WRITEREG; 347 USETW(req.wValue, val); 348 USETW(req.wIndex, reg); 349 USETW(req.wLength, 1); 350 351 err = usbd_do_request(sc->aue_udev, &req, &val); 352 353 if (err) { 354 DPRINTF(("%s: aue_csr_write_1: reg=0x%x err=%s\n", 355 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err))); 356 return (-1); 357 } 358 359 return (0); 360 } 361 362 Static int 363 aue_csr_write_2(struct aue_softc *sc, int reg, int aval) 364 { 365 usb_device_request_t req; 366 usbd_status err; 367 uWord val; 368 369 if (sc->aue_dying) 370 return (0); 371 372 USETW(val, aval); 373 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 374 req.bRequest = AUE_UR_WRITEREG; 375 USETW(req.wValue, aval); 376 USETW(req.wIndex, reg); 377 USETW(req.wLength, 2); 378 379 err = usbd_do_request(sc->aue_udev, &req, &val); 380 381 if (err) { 382 DPRINTF(("%s: aue_csr_write_2: reg=0x%x err=%s\n", 383 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err))); 384 return (-1); 385 } 386 387 return (0); 388 } 389 390 /* 391 * Read a word of data stored in the EEPROM at address 'addr.' 392 */ 393 Static int 394 aue_eeprom_getword(struct aue_softc *sc, int addr) 395 { 396 int i; 397 398 aue_csr_write_1(sc, AUE_EE_REG, addr); 399 aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ); 400 401 for (i = 0; i < AUE_TIMEOUT; i++) { 402 if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE) 403 break; 404 } 405 406 if (i == AUE_TIMEOUT) { 407 printf("%s: EEPROM read timed out\n", 408 USBDEVNAME(sc->aue_dev)); 409 } 410 411 return (aue_csr_read_2(sc, AUE_EE_DATA)); 412 } 413 414 /* 415 * Read the MAC from the EEPROM. It's at offset 0. 416 */ 417 Static void 418 aue_read_mac(struct aue_softc *sc, u_char *dest) 419 { 420 int i; 421 int off = 0; 422 int word; 423 424 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 425 426 for (i = 0; i < 3; i++) { 427 word = aue_eeprom_getword(sc, off + i); 428 dest[2 * i] = (u_char)word; 429 dest[2 * i + 1] = (u_char)(word >> 8); 430 } 431 } 432 433 /* Get exclusive access to the MII registers */ 434 Static void 435 aue_lock_mii(struct aue_softc *sc) 436 { 437 sc->aue_refcnt++; 438 lockmgr(&sc->aue_mii_lock, LK_EXCLUSIVE, NULL); 439 } 440 441 Static void 442 aue_unlock_mii(struct aue_softc *sc) 443 { 444 lockmgr(&sc->aue_mii_lock, LK_RELEASE, NULL); 445 if (--sc->aue_refcnt < 0) 446 usb_detach_wakeup(USBDEV(sc->aue_dev)); 447 } 448 449 Static int 450 aue_miibus_readreg(device_ptr_t dev, int phy, int reg) 451 { 452 struct aue_softc *sc = USBGETSOFTC(dev); 453 int i; 454 u_int16_t val; 455 456 if (sc->aue_dying) { 457 #ifdef DIAGNOSTIC 458 printf("%s: dying\n", USBDEVNAME(sc->aue_dev)); 459 #endif 460 return 0; 461 } 462 463 #if 0 464 /* 465 * The Am79C901 HomePNA PHY actually contains 466 * two transceivers: a 1Mbps HomePNA PHY and a 467 * 10Mbps full/half duplex ethernet PHY with 468 * NWAY autoneg. However in the ADMtek adapter, 469 * only the 1Mbps PHY is actually connected to 470 * anything, so we ignore the 10Mbps one. It 471 * happens to be configured for MII address 3, 472 * so we filter that out. 473 */ 474 if (sc->aue_vendor == USB_VENDOR_ADMTEK && 475 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) { 476 if (phy == 3) 477 return (0); 478 } 479 #endif 480 481 aue_lock_mii(sc); 482 aue_csr_write_1(sc, AUE_PHY_ADDR, phy); 483 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ); 484 485 for (i = 0; i < AUE_TIMEOUT; i++) { 486 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE) 487 break; 488 } 489 490 if (i == AUE_TIMEOUT) { 491 printf("%s: MII read timed out\n", USBDEVNAME(sc->aue_dev)); 492 } 493 494 val = aue_csr_read_2(sc, AUE_PHY_DATA); 495 496 DPRINTFN(11,("%s: %s: phy=%d reg=%d => 0x%04x\n", 497 USBDEVNAME(sc->aue_dev), __func__, phy, reg, val)); 498 499 aue_unlock_mii(sc); 500 return (val); 501 } 502 503 Static void 504 aue_miibus_writereg(device_ptr_t dev, int phy, int reg, int data) 505 { 506 struct aue_softc *sc = USBGETSOFTC(dev); 507 int i; 508 509 #if 0 510 if (sc->aue_vendor == USB_VENDOR_ADMTEK && 511 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) { 512 if (phy == 3) 513 return; 514 } 515 #endif 516 517 DPRINTFN(11,("%s: %s: phy=%d reg=%d data=0x%04x\n", 518 USBDEVNAME(sc->aue_dev), __func__, phy, reg, data)); 519 520 aue_lock_mii(sc); 521 aue_csr_write_2(sc, AUE_PHY_DATA, data); 522 aue_csr_write_1(sc, AUE_PHY_ADDR, phy); 523 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE); 524 525 for (i = 0; i < AUE_TIMEOUT; i++) { 526 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE) 527 break; 528 } 529 530 if (i == AUE_TIMEOUT) { 531 printf("%s: MII read timed out\n", 532 USBDEVNAME(sc->aue_dev)); 533 } 534 aue_unlock_mii(sc); 535 } 536 537 Static void 538 aue_miibus_statchg(device_ptr_t dev) 539 { 540 struct aue_softc *sc = USBGETSOFTC(dev); 541 struct mii_data *mii = GET_MII(sc); 542 543 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 544 545 aue_lock_mii(sc); 546 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB); 547 548 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) { 549 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL); 550 } else { 551 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL); 552 } 553 554 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 555 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX); 556 else 557 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX); 558 559 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB); 560 aue_unlock_mii(sc); 561 562 /* 563 * Set the LED modes on the LinkSys adapter. 564 * This turns on the 'dual link LED' bin in the auxmode 565 * register of the Broadcom PHY. 566 */ 567 if (!sc->aue_dying && (sc->aue_flags & LSYS)) { 568 u_int16_t auxmode; 569 auxmode = aue_miibus_readreg(dev, 0, 0x1b); 570 aue_miibus_writereg(dev, 0, 0x1b, auxmode | 0x04); 571 } 572 DPRINTFN(5,("%s: %s: exit\n", USBDEVNAME(sc->aue_dev), __func__)); 573 } 574 575 #define AUE_POLY 0xEDB88320 576 #define AUE_BITS 6 577 578 Static u_int32_t 579 aue_crc(caddr_t addr) 580 { 581 u_int32_t idx, bit, data, crc; 582 583 /* Compute CRC for the address value. */ 584 crc = 0xFFFFFFFF; /* initial value */ 585 586 for (idx = 0; idx < 6; idx++) { 587 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) 588 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? AUE_POLY : 0); 589 } 590 591 return (crc & ((1 << AUE_BITS) - 1)); 592 } 593 594 Static void 595 aue_setmulti(struct aue_softc *sc) 596 { 597 struct ifnet *ifp; 598 struct ether_multi *enm; 599 struct ether_multistep step; 600 u_int32_t h = 0, i; 601 602 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 603 604 ifp = GET_IFP(sc); 605 606 if (ifp->if_flags & IFF_PROMISC) { 607 allmulti: 608 ifp->if_flags |= IFF_ALLMULTI; 609 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI); 610 return; 611 } 612 613 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI); 614 615 /* first, zot all the existing hash bits */ 616 for (i = 0; i < 8; i++) 617 aue_csr_write_1(sc, AUE_MAR0 + i, 0); 618 619 /* now program new ones */ 620 #if defined(__NetBSD__) 621 ETHER_FIRST_MULTI(step, &sc->aue_ec, enm); 622 #else 623 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 624 #endif 625 while (enm != NULL) { 626 if (memcmp(enm->enm_addrlo, 627 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) 628 goto allmulti; 629 630 h = aue_crc(enm->enm_addrlo); 631 AUE_SETBIT(sc, AUE_MAR + (h >> 3), 1 << (h & 0x7)); 632 ETHER_NEXT_MULTI(step, enm); 633 } 634 635 ifp->if_flags &= ~IFF_ALLMULTI; 636 } 637 638 Static void 639 aue_reset_pegasus_II(struct aue_softc *sc) 640 { 641 /* Magic constants taken from Linux driver. */ 642 aue_csr_write_1(sc, AUE_REG_1D, 0); 643 aue_csr_write_1(sc, AUE_REG_7B, 2); 644 #if 0 645 if ((sc->aue_flags & HAS_HOME_PNA) && mii_mode) 646 aue_csr_write_1(sc, AUE_REG_81, 6); 647 else 648 #endif 649 aue_csr_write_1(sc, AUE_REG_81, 2); 650 } 651 652 Static void 653 aue_reset(struct aue_softc *sc) 654 { 655 int i; 656 657 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 658 659 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC); 660 661 for (i = 0; i < AUE_TIMEOUT; i++) { 662 if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC)) 663 break; 664 } 665 666 if (i == AUE_TIMEOUT) 667 printf("%s: reset failed\n", USBDEVNAME(sc->aue_dev)); 668 669 #if 0 670 /* XXX what is mii_mode supposed to be */ 671 if (sc->aue_mii_mode && (sc->aue_flags & PNA)) 672 aue_csr_write_1(sc, AUE_GPIO1, 0x34); 673 else 674 aue_csr_write_1(sc, AUE_GPIO1, 0x26); 675 #endif 676 677 /* 678 * The PHY(s) attached to the Pegasus chip may be held 679 * in reset until we flip on the GPIO outputs. Make sure 680 * to set the GPIO pins high so that the PHY(s) will 681 * be enabled. 682 * 683 * Note: We force all of the GPIO pins low first, *then* 684 * enable the ones we want. 685 */ 686 if (sc->aue_flags & LSYS) { 687 /* Grrr. LinkSys has to be different from everyone else. */ 688 aue_csr_write_1(sc, AUE_GPIO0, 689 AUE_GPIO_SEL0 | AUE_GPIO_SEL1); 690 } else { 691 aue_csr_write_1(sc, AUE_GPIO0, 692 AUE_GPIO_OUT0 | AUE_GPIO_SEL0); 693 } 694 aue_csr_write_1(sc, AUE_GPIO0, 695 AUE_GPIO_OUT0 | AUE_GPIO_SEL0 | AUE_GPIO_SEL1); 696 697 if (sc->aue_flags & PII) 698 aue_reset_pegasus_II(sc); 699 700 /* Wait a little while for the chip to get its brains in order. */ 701 delay(10000); /* XXX */ 702 } 703 704 /* 705 * Probe for a Pegasus chip. 706 */ 707 USB_MATCH(aue) 708 { 709 USB_MATCH_START(aue, uaa); 710 711 if (uaa->iface != NULL) 712 return (UMATCH_NONE); 713 714 return (aue_lookup(uaa->vendor, uaa->product) != NULL ? 715 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 716 } 717 718 /* 719 * Attach the interface. Allocate softc structures, do ifmedia 720 * setup and ethernet/BPF attach. 721 */ 722 USB_ATTACH(aue) 723 { 724 USB_ATTACH_START(aue, sc, uaa); 725 char devinfo[1024]; 726 int s; 727 u_char eaddr[ETHER_ADDR_LEN]; 728 struct ifnet *ifp; 729 struct mii_data *mii; 730 usbd_device_handle dev = uaa->device; 731 usbd_interface_handle iface; 732 usbd_status err; 733 usb_interface_descriptor_t *id; 734 usb_endpoint_descriptor_t *ed; 735 int i; 736 737 DPRINTFN(5,(" : aue_attach: sc=%p", sc)); 738 739 usbd_devinfo(dev, 0, devinfo, sizeof(devinfo)); 740 USB_ATTACH_SETUP; 741 printf("%s: %s\n", USBDEVNAME(sc->aue_dev), devinfo); 742 743 err = usbd_set_config_no(dev, AUE_CONFIG_NO, 1); 744 if (err) { 745 printf("%s: setting config no failed\n", 746 USBDEVNAME(sc->aue_dev)); 747 USB_ATTACH_ERROR_RETURN; 748 } 749 750 usb_init_task(&sc->aue_tick_task, aue_tick_task, sc); 751 usb_init_task(&sc->aue_stop_task, (void (*)(void *))aue_stop, sc); 752 lockinit(&sc->aue_mii_lock, PZERO, "auemii", 0, 0); 753 754 err = usbd_device2interface_handle(dev, AUE_IFACE_IDX, &iface); 755 if (err) { 756 printf("%s: getting interface handle failed\n", 757 USBDEVNAME(sc->aue_dev)); 758 USB_ATTACH_ERROR_RETURN; 759 } 760 761 sc->aue_flags = aue_lookup(uaa->vendor, uaa->product)->aue_flags; 762 763 sc->aue_udev = dev; 764 sc->aue_iface = iface; 765 sc->aue_product = uaa->product; 766 sc->aue_vendor = uaa->vendor; 767 768 id = usbd_get_interface_descriptor(iface); 769 770 /* Find endpoints. */ 771 for (i = 0; i < id->bNumEndpoints; i++) { 772 ed = usbd_interface2endpoint_descriptor(iface, i); 773 if (ed == NULL) { 774 printf("%s: couldn't get endpoint descriptor %d\n", 775 USBDEVNAME(sc->aue_dev), i); 776 USB_ATTACH_ERROR_RETURN; 777 } 778 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 779 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 780 sc->aue_ed[AUE_ENDPT_RX] = ed->bEndpointAddress; 781 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 782 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 783 sc->aue_ed[AUE_ENDPT_TX] = ed->bEndpointAddress; 784 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 785 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 786 sc->aue_ed[AUE_ENDPT_INTR] = ed->bEndpointAddress; 787 } 788 } 789 790 if (sc->aue_ed[AUE_ENDPT_RX] == 0 || sc->aue_ed[AUE_ENDPT_TX] == 0 || 791 sc->aue_ed[AUE_ENDPT_INTR] == 0) { 792 printf("%s: missing endpoint\n", USBDEVNAME(sc->aue_dev)); 793 USB_ATTACH_ERROR_RETURN; 794 } 795 796 797 s = splnet(); 798 799 /* Reset the adapter. */ 800 aue_reset(sc); 801 802 /* 803 * Get station address from the EEPROM. 804 */ 805 aue_read_mac(sc, eaddr); 806 807 /* 808 * A Pegasus chip was detected. Inform the world. 809 */ 810 ifp = GET_IFP(sc); 811 printf("%s: Ethernet address %s\n", USBDEVNAME(sc->aue_dev), 812 ether_sprintf(eaddr)); 813 814 /* Initialize interface info.*/ 815 ifp->if_softc = sc; 816 ifp->if_mtu = ETHERMTU; 817 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 818 ifp->if_ioctl = aue_ioctl; 819 ifp->if_start = aue_start; 820 ifp->if_watchdog = aue_watchdog; 821 #if defined(__OpenBSD__) 822 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 823 #endif 824 strncpy(ifp->if_xname, USBDEVNAME(sc->aue_dev), IFNAMSIZ); 825 826 IFQ_SET_READY(&ifp->if_snd); 827 828 /* Initialize MII/media info. */ 829 mii = &sc->aue_mii; 830 mii->mii_ifp = ifp; 831 mii->mii_readreg = aue_miibus_readreg; 832 mii->mii_writereg = aue_miibus_writereg; 833 mii->mii_statchg = aue_miibus_statchg; 834 mii->mii_flags = MIIF_AUTOTSLEEP; 835 ifmedia_init(&mii->mii_media, 0, aue_ifmedia_upd, aue_ifmedia_sts); 836 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 837 if (LIST_FIRST(&mii->mii_phys) == NULL) { 838 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 839 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 840 } else 841 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 842 843 /* Attach the interface. */ 844 if_attach(ifp); 845 Ether_ifattach(ifp, eaddr); 846 #if NRND > 0 847 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->aue_dev), 848 RND_TYPE_NET, 0); 849 #endif 850 851 usb_callout_init(sc->aue_stat_ch); 852 853 sc->aue_attached = 1; 854 splx(s); 855 856 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->aue_udev, 857 USBDEV(sc->aue_dev)); 858 859 USB_ATTACH_SUCCESS_RETURN; 860 } 861 862 USB_DETACH(aue) 863 { 864 USB_DETACH_START(aue, sc); 865 struct ifnet *ifp = GET_IFP(sc); 866 int s; 867 868 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 869 870 if (!sc->aue_attached) { 871 /* Detached before attached finished, so just bail out. */ 872 return (0); 873 } 874 875 usb_uncallout(sc->aue_stat_ch, aue_tick, sc); 876 /* 877 * Remove any pending tasks. They cannot be executing because they run 878 * in the same thread as detach. 879 */ 880 usb_rem_task(sc->aue_udev, &sc->aue_tick_task); 881 usb_rem_task(sc->aue_udev, &sc->aue_stop_task); 882 883 s = splusb(); 884 885 if (ifp->if_flags & IFF_RUNNING) 886 aue_stop(sc); 887 888 #if defined(__NetBSD__) 889 #if NRND > 0 890 rnd_detach_source(&sc->rnd_source); 891 #endif 892 mii_detach(&sc->aue_mii, MII_PHY_ANY, MII_OFFSET_ANY); 893 ifmedia_delete_instance(&sc->aue_mii.mii_media, IFM_INST_ANY); 894 ether_ifdetach(ifp); 895 #endif /* __NetBSD__ */ 896 897 if_detach(ifp); 898 899 #ifdef DIAGNOSTIC 900 if (sc->aue_ep[AUE_ENDPT_TX] != NULL || 901 sc->aue_ep[AUE_ENDPT_RX] != NULL || 902 sc->aue_ep[AUE_ENDPT_INTR] != NULL) 903 printf("%s: detach has active endpoints\n", 904 USBDEVNAME(sc->aue_dev)); 905 #endif 906 907 sc->aue_attached = 0; 908 909 if (--sc->aue_refcnt >= 0) { 910 /* Wait for processes to go away. */ 911 usb_detach_wait(USBDEV(sc->aue_dev)); 912 } 913 splx(s); 914 915 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->aue_udev, 916 USBDEV(sc->aue_dev)); 917 918 return (0); 919 } 920 921 int 922 aue_activate(device_ptr_t self, enum devact act) 923 { 924 struct aue_softc *sc = (struct aue_softc *)self; 925 926 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 927 928 switch (act) { 929 case DVACT_ACTIVATE: 930 return (EOPNOTSUPP); 931 break; 932 933 case DVACT_DEACTIVATE: 934 if_deactivate(&sc->aue_ec.ec_if); 935 sc->aue_dying = 1; 936 break; 937 } 938 return (0); 939 } 940 941 /* 942 * Initialize an RX descriptor and attach an MBUF cluster. 943 */ 944 Static int 945 aue_newbuf(struct aue_softc *sc, struct aue_chain *c, struct mbuf *m) 946 { 947 struct mbuf *m_new = NULL; 948 949 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__)); 950 951 if (m == NULL) { 952 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 953 if (m_new == NULL) { 954 printf("%s: no memory for rx list " 955 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev)); 956 return (ENOBUFS); 957 } 958 959 MCLGET(m_new, M_DONTWAIT); 960 if (!(m_new->m_flags & M_EXT)) { 961 printf("%s: no memory for rx list " 962 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev)); 963 m_freem(m_new); 964 return (ENOBUFS); 965 } 966 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 967 } else { 968 m_new = m; 969 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 970 m_new->m_data = m_new->m_ext.ext_buf; 971 } 972 973 m_adj(m_new, ETHER_ALIGN); 974 c->aue_mbuf = m_new; 975 976 return (0); 977 } 978 979 Static int 980 aue_rx_list_init(struct aue_softc *sc) 981 { 982 struct aue_cdata *cd; 983 struct aue_chain *c; 984 int i; 985 986 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 987 988 cd = &sc->aue_cdata; 989 for (i = 0; i < AUE_RX_LIST_CNT; i++) { 990 c = &cd->aue_rx_chain[i]; 991 c->aue_sc = sc; 992 c->aue_idx = i; 993 if (aue_newbuf(sc, c, NULL) == ENOBUFS) 994 return (ENOBUFS); 995 if (c->aue_xfer == NULL) { 996 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev); 997 if (c->aue_xfer == NULL) 998 return (ENOBUFS); 999 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ); 1000 if (c->aue_buf == NULL) 1001 return (ENOBUFS); /* XXX free xfer */ 1002 } 1003 } 1004 1005 return (0); 1006 } 1007 1008 Static int 1009 aue_tx_list_init(struct aue_softc *sc) 1010 { 1011 struct aue_cdata *cd; 1012 struct aue_chain *c; 1013 int i; 1014 1015 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 1016 1017 cd = &sc->aue_cdata; 1018 for (i = 0; i < AUE_TX_LIST_CNT; i++) { 1019 c = &cd->aue_tx_chain[i]; 1020 c->aue_sc = sc; 1021 c->aue_idx = i; 1022 c->aue_mbuf = NULL; 1023 if (c->aue_xfer == NULL) { 1024 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev); 1025 if (c->aue_xfer == NULL) 1026 return (ENOBUFS); 1027 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ); 1028 if (c->aue_buf == NULL) 1029 return (ENOBUFS); 1030 } 1031 } 1032 1033 return (0); 1034 } 1035 1036 Static void 1037 aue_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1038 { 1039 struct aue_softc *sc = priv; 1040 struct ifnet *ifp = GET_IFP(sc); 1041 struct aue_intrpkt *p = &sc->aue_cdata.aue_ibuf; 1042 1043 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__)); 1044 1045 if (sc->aue_dying) 1046 return; 1047 1048 if (!(ifp->if_flags & IFF_RUNNING)) 1049 return; 1050 1051 if (status != USBD_NORMAL_COMPLETION) { 1052 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1053 return; 1054 } 1055 sc->aue_intr_errs++; 1056 if (usbd_ratecheck(&sc->aue_rx_notice)) { 1057 printf("%s: %u usb errors on intr: %s\n", 1058 USBDEVNAME(sc->aue_dev), sc->aue_intr_errs, 1059 usbd_errstr(status)); 1060 sc->aue_intr_errs = 0; 1061 } 1062 if (status == USBD_STALLED) 1063 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]); 1064 return; 1065 } 1066 1067 if (p->aue_txstat0) 1068 ifp->if_oerrors++; 1069 1070 if (p->aue_txstat0 & (AUE_TXSTAT0_LATECOLL | AUE_TXSTAT0_EXCESSCOLL)) 1071 ifp->if_collisions++; 1072 } 1073 1074 /* 1075 * A frame has been uploaded: pass the resulting mbuf chain up to 1076 * the higher level protocols. 1077 */ 1078 Static void 1079 aue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1080 { 1081 struct aue_chain *c = priv; 1082 struct aue_softc *sc = c->aue_sc; 1083 struct ifnet *ifp = GET_IFP(sc); 1084 struct mbuf *m; 1085 u_int32_t total_len; 1086 struct aue_rxpkt r; 1087 int s; 1088 1089 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__)); 1090 1091 if (sc->aue_dying) 1092 return; 1093 1094 if (!(ifp->if_flags & IFF_RUNNING)) 1095 return; 1096 1097 if (status != USBD_NORMAL_COMPLETION) { 1098 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 1099 return; 1100 sc->aue_rx_errs++; 1101 if (usbd_ratecheck(&sc->aue_rx_notice)) { 1102 printf("%s: %u usb errors on rx: %s\n", 1103 USBDEVNAME(sc->aue_dev), sc->aue_rx_errs, 1104 usbd_errstr(status)); 1105 sc->aue_rx_errs = 0; 1106 } 1107 if (status == USBD_STALLED) 1108 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]); 1109 goto done; 1110 } 1111 1112 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 1113 1114 memcpy(mtod(c->aue_mbuf, char *), c->aue_buf, total_len); 1115 1116 if (total_len <= 4 + ETHER_CRC_LEN) { 1117 ifp->if_ierrors++; 1118 goto done; 1119 } 1120 1121 memcpy(&r, c->aue_buf + total_len - 4, sizeof(r)); 1122 1123 /* Turn off all the non-error bits in the rx status word. */ 1124 r.aue_rxstat &= AUE_RXSTAT_MASK; 1125 if (r.aue_rxstat) { 1126 ifp->if_ierrors++; 1127 goto done; 1128 } 1129 1130 /* No errors; receive the packet. */ 1131 m = c->aue_mbuf; 1132 total_len -= ETHER_CRC_LEN + 4; 1133 m->m_pkthdr.len = m->m_len = total_len; 1134 ifp->if_ipackets++; 1135 1136 m->m_pkthdr.rcvif = ifp; 1137 1138 s = splnet(); 1139 1140 /* XXX ugly */ 1141 if (aue_newbuf(sc, c, NULL) == ENOBUFS) { 1142 ifp->if_ierrors++; 1143 goto done1; 1144 } 1145 1146 #if NBPFILTER > 0 1147 /* 1148 * Handle BPF listeners. Let the BPF user see the packet, but 1149 * don't pass it up to the ether_input() layer unless it's 1150 * a broadcast packet, multicast packet, matches our ethernet 1151 * address or the interface is in promiscuous mode. 1152 */ 1153 if (ifp->if_bpf) 1154 BPF_MTAP(ifp, m); 1155 #endif 1156 1157 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->aue_dev), 1158 __func__, m->m_len)); 1159 IF_INPUT(ifp, m); 1160 done1: 1161 splx(s); 1162 1163 done: 1164 1165 /* Setup new transfer. */ 1166 usbd_setup_xfer(xfer, sc->aue_ep[AUE_ENDPT_RX], 1167 c, c->aue_buf, AUE_BUFSZ, 1168 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1169 USBD_NO_TIMEOUT, aue_rxeof); 1170 usbd_transfer(xfer); 1171 1172 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->aue_dev), 1173 __func__)); 1174 } 1175 1176 /* 1177 * A frame was downloaded to the chip. It's safe for us to clean up 1178 * the list buffers. 1179 */ 1180 1181 Static void 1182 aue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1183 { 1184 struct aue_chain *c = priv; 1185 struct aue_softc *sc = c->aue_sc; 1186 struct ifnet *ifp = GET_IFP(sc); 1187 int s; 1188 1189 if (sc->aue_dying) 1190 return; 1191 1192 s = splnet(); 1193 1194 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->aue_dev), 1195 __func__, status)); 1196 1197 ifp->if_timer = 0; 1198 ifp->if_flags &= ~IFF_OACTIVE; 1199 1200 if (status != USBD_NORMAL_COMPLETION) { 1201 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1202 splx(s); 1203 return; 1204 } 1205 ifp->if_oerrors++; 1206 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->aue_dev), 1207 usbd_errstr(status)); 1208 if (status == USBD_STALLED) 1209 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_TX]); 1210 splx(s); 1211 return; 1212 } 1213 1214 ifp->if_opackets++; 1215 1216 m_freem(c->aue_mbuf); 1217 c->aue_mbuf = NULL; 1218 1219 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1220 aue_start(ifp); 1221 1222 splx(s); 1223 } 1224 1225 Static void 1226 aue_tick(void *xsc) 1227 { 1228 struct aue_softc *sc = xsc; 1229 1230 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__)); 1231 1232 if (sc == NULL) 1233 return; 1234 1235 if (sc->aue_dying) 1236 return; 1237 1238 /* Perform periodic stuff in process context. */ 1239 usb_add_task(sc->aue_udev, &sc->aue_tick_task); 1240 } 1241 1242 Static void 1243 aue_tick_task(void *xsc) 1244 { 1245 struct aue_softc *sc = xsc; 1246 struct ifnet *ifp; 1247 struct mii_data *mii; 1248 int s; 1249 1250 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__)); 1251 1252 if (sc->aue_dying) 1253 return; 1254 1255 ifp = GET_IFP(sc); 1256 mii = GET_MII(sc); 1257 if (mii == NULL) 1258 return; 1259 1260 s = splnet(); 1261 1262 mii_tick(mii); 1263 if (!sc->aue_link) { 1264 mii_pollstat(mii); /* XXX FreeBSD has removed this call */ 1265 if (mii->mii_media_status & IFM_ACTIVE && 1266 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1267 DPRINTFN(2,("%s: %s: got link\n", 1268 USBDEVNAME(sc->aue_dev),__func__)); 1269 sc->aue_link++; 1270 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1271 aue_start(ifp); 1272 } 1273 } 1274 1275 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc); 1276 1277 splx(s); 1278 } 1279 1280 Static int 1281 aue_send(struct aue_softc *sc, struct mbuf *m, int idx) 1282 { 1283 int total_len; 1284 struct aue_chain *c; 1285 usbd_status err; 1286 1287 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__)); 1288 1289 c = &sc->aue_cdata.aue_tx_chain[idx]; 1290 1291 /* 1292 * Copy the mbuf data into a contiguous buffer, leaving two 1293 * bytes at the beginning to hold the frame length. 1294 */ 1295 m_copydata(m, 0, m->m_pkthdr.len, c->aue_buf + 2); 1296 c->aue_mbuf = m; 1297 1298 /* 1299 * The ADMtek documentation says that the packet length is 1300 * supposed to be specified in the first two bytes of the 1301 * transfer, however it actually seems to ignore this info 1302 * and base the frame size on the bulk transfer length. 1303 */ 1304 c->aue_buf[0] = (u_int8_t)m->m_pkthdr.len; 1305 c->aue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 1306 total_len = m->m_pkthdr.len + 2; 1307 1308 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_TX], 1309 c, c->aue_buf, total_len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1310 AUE_TX_TIMEOUT, aue_txeof); 1311 1312 /* Transmit */ 1313 err = usbd_transfer(c->aue_xfer); 1314 if (err != USBD_IN_PROGRESS) { 1315 printf("%s: aue_send error=%s\n", USBDEVNAME(sc->aue_dev), 1316 usbd_errstr(err)); 1317 /* Stop the interface from process context. */ 1318 usb_add_task(sc->aue_udev, &sc->aue_stop_task); 1319 return (EIO); 1320 } 1321 DPRINTFN(5,("%s: %s: send %d bytes\n", USBDEVNAME(sc->aue_dev), 1322 __func__, total_len)); 1323 1324 sc->aue_cdata.aue_tx_cnt++; 1325 1326 return (0); 1327 } 1328 1329 Static void 1330 aue_start(struct ifnet *ifp) 1331 { 1332 struct aue_softc *sc = ifp->if_softc; 1333 struct mbuf *m_head = NULL; 1334 1335 DPRINTFN(5,("%s: %s: enter, link=%d\n", USBDEVNAME(sc->aue_dev), 1336 __func__, sc->aue_link)); 1337 1338 if (sc->aue_dying) 1339 return; 1340 1341 if (!sc->aue_link) 1342 return; 1343 1344 if (ifp->if_flags & IFF_OACTIVE) 1345 return; 1346 1347 IFQ_POLL(&ifp->if_snd, m_head); 1348 if (m_head == NULL) 1349 return; 1350 1351 if (aue_send(sc, m_head, 0)) { 1352 ifp->if_flags |= IFF_OACTIVE; 1353 return; 1354 } 1355 1356 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1357 1358 #if NBPFILTER > 0 1359 /* 1360 * If there's a BPF listener, bounce a copy of this frame 1361 * to him. 1362 */ 1363 if (ifp->if_bpf) 1364 BPF_MTAP(ifp, m_head); 1365 #endif 1366 1367 ifp->if_flags |= IFF_OACTIVE; 1368 1369 /* 1370 * Set a timeout in case the chip goes out to lunch. 1371 */ 1372 ifp->if_timer = 5; 1373 } 1374 1375 Static void 1376 aue_init(void *xsc) 1377 { 1378 struct aue_softc *sc = xsc; 1379 struct ifnet *ifp = GET_IFP(sc); 1380 struct mii_data *mii = GET_MII(sc); 1381 int i, s; 1382 u_char *eaddr; 1383 1384 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 1385 1386 if (sc->aue_dying) 1387 return; 1388 1389 if (ifp->if_flags & IFF_RUNNING) 1390 return; 1391 1392 s = splnet(); 1393 1394 /* 1395 * Cancel pending I/O and free all RX/TX buffers. 1396 */ 1397 aue_reset(sc); 1398 1399 #if defined(__OpenBSD__) 1400 eaddr = sc->arpcom.ac_enaddr; 1401 #elif defined(__NetBSD__) 1402 eaddr = LLADDR(ifp->if_sadl); 1403 #endif /* defined(__NetBSD__) */ 1404 for (i = 0; i < ETHER_ADDR_LEN; i++) 1405 aue_csr_write_1(sc, AUE_PAR0 + i, eaddr[i]); 1406 1407 /* If we want promiscuous mode, set the allframes bit. */ 1408 if (ifp->if_flags & IFF_PROMISC) 1409 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); 1410 else 1411 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); 1412 1413 /* Init TX ring. */ 1414 if (aue_tx_list_init(sc) == ENOBUFS) { 1415 printf("%s: tx list init failed\n", USBDEVNAME(sc->aue_dev)); 1416 splx(s); 1417 return; 1418 } 1419 1420 /* Init RX ring. */ 1421 if (aue_rx_list_init(sc) == ENOBUFS) { 1422 printf("%s: rx list init failed\n", USBDEVNAME(sc->aue_dev)); 1423 splx(s); 1424 return; 1425 } 1426 1427 /* Load the multicast filter. */ 1428 aue_setmulti(sc); 1429 1430 /* Enable RX and TX */ 1431 aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB); 1432 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB); 1433 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR); 1434 1435 mii_mediachg(mii); 1436 1437 if (sc->aue_ep[AUE_ENDPT_RX] == NULL) { 1438 if (aue_openpipes(sc)) { 1439 splx(s); 1440 return; 1441 } 1442 } 1443 1444 ifp->if_flags |= IFF_RUNNING; 1445 ifp->if_flags &= ~IFF_OACTIVE; 1446 1447 splx(s); 1448 1449 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc); 1450 } 1451 1452 Static int 1453 aue_openpipes(struct aue_softc *sc) 1454 { 1455 struct aue_chain *c; 1456 usbd_status err; 1457 int i; 1458 1459 /* Open RX and TX pipes. */ 1460 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_RX], 1461 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_RX]); 1462 if (err) { 1463 printf("%s: open rx pipe failed: %s\n", 1464 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1465 return (EIO); 1466 } 1467 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_TX], 1468 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_TX]); 1469 if (err) { 1470 printf("%s: open tx pipe failed: %s\n", 1471 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1472 return (EIO); 1473 } 1474 err = usbd_open_pipe_intr(sc->aue_iface, sc->aue_ed[AUE_ENDPT_INTR], 1475 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_INTR], sc, 1476 &sc->aue_cdata.aue_ibuf, AUE_INTR_PKTLEN, aue_intr, 1477 AUE_INTR_INTERVAL); 1478 if (err) { 1479 printf("%s: open intr pipe failed: %s\n", 1480 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1481 return (EIO); 1482 } 1483 1484 /* Start up the receive pipe. */ 1485 for (i = 0; i < AUE_RX_LIST_CNT; i++) { 1486 c = &sc->aue_cdata.aue_rx_chain[i]; 1487 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX], 1488 c, c->aue_buf, AUE_BUFSZ, 1489 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1490 aue_rxeof); 1491 (void)usbd_transfer(c->aue_xfer); /* XXX */ 1492 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->aue_dev), 1493 __func__)); 1494 1495 } 1496 return (0); 1497 } 1498 1499 /* 1500 * Set media options. 1501 */ 1502 Static int 1503 aue_ifmedia_upd(struct ifnet *ifp) 1504 { 1505 struct aue_softc *sc = ifp->if_softc; 1506 struct mii_data *mii = GET_MII(sc); 1507 1508 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 1509 1510 if (sc->aue_dying) 1511 return (0); 1512 1513 sc->aue_link = 0; 1514 if (mii->mii_instance) { 1515 struct mii_softc *miisc; 1516 for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL; 1517 miisc = LIST_NEXT(miisc, mii_list)) 1518 mii_phy_reset(miisc); 1519 } 1520 mii_mediachg(mii); 1521 1522 return (0); 1523 } 1524 1525 /* 1526 * Report current media status. 1527 */ 1528 Static void 1529 aue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 1530 { 1531 struct aue_softc *sc = ifp->if_softc; 1532 struct mii_data *mii = GET_MII(sc); 1533 1534 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 1535 1536 mii_pollstat(mii); 1537 ifmr->ifm_active = mii->mii_media_active; 1538 ifmr->ifm_status = mii->mii_media_status; 1539 } 1540 1541 Static int 1542 aue_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 1543 { 1544 struct aue_softc *sc = ifp->if_softc; 1545 struct ifaddr *ifa = (struct ifaddr *)data; 1546 struct ifreq *ifr = (struct ifreq *)data; 1547 struct mii_data *mii; 1548 int s, error = 0; 1549 1550 if (sc->aue_dying) 1551 return (EIO); 1552 1553 s = splnet(); 1554 1555 switch(command) { 1556 case SIOCSIFADDR: 1557 ifp->if_flags |= IFF_UP; 1558 aue_init(sc); 1559 1560 switch (ifa->ifa_addr->sa_family) { 1561 #ifdef INET 1562 case AF_INET: 1563 #if defined(__NetBSD__) 1564 arp_ifinit(ifp, ifa); 1565 #else 1566 arp_ifinit(&sc->arpcom, ifa); 1567 #endif 1568 break; 1569 #endif /* INET */ 1570 #ifdef NS 1571 case AF_NS: 1572 { 1573 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 1574 1575 if (ns_nullhost(*ina)) 1576 ina->x_host = *(union ns_host *) 1577 LLADDR(ifp->if_sadl); 1578 else 1579 memcpy(LLADDR(ifp->if_sadl), 1580 ina->x_host.c_host, 1581 ifp->if_addrlen); 1582 break; 1583 } 1584 #endif /* NS */ 1585 } 1586 break; 1587 1588 case SIOCSIFMTU: 1589 if (ifr->ifr_mtu > ETHERMTU) 1590 error = EINVAL; 1591 else 1592 ifp->if_mtu = ifr->ifr_mtu; 1593 break; 1594 1595 case SIOCSIFFLAGS: 1596 if (ifp->if_flags & IFF_UP) { 1597 if (ifp->if_flags & IFF_RUNNING && 1598 ifp->if_flags & IFF_PROMISC && 1599 !(sc->aue_if_flags & IFF_PROMISC)) { 1600 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); 1601 } else if (ifp->if_flags & IFF_RUNNING && 1602 !(ifp->if_flags & IFF_PROMISC) && 1603 sc->aue_if_flags & IFF_PROMISC) { 1604 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); 1605 } else if (!(ifp->if_flags & IFF_RUNNING)) 1606 aue_init(sc); 1607 } else { 1608 if (ifp->if_flags & IFF_RUNNING) 1609 aue_stop(sc); 1610 } 1611 sc->aue_if_flags = ifp->if_flags; 1612 error = 0; 1613 break; 1614 case SIOCADDMULTI: 1615 case SIOCDELMULTI: 1616 error = (command == SIOCADDMULTI) ? 1617 ether_addmulti(ifr, &sc->aue_ec) : 1618 ether_delmulti(ifr, &sc->aue_ec); 1619 if (error == ENETRESET) { 1620 if (ifp->if_flags & IFF_RUNNING) { 1621 aue_init(sc); 1622 aue_setmulti(sc); 1623 } 1624 error = 0; 1625 } 1626 break; 1627 case SIOCGIFMEDIA: 1628 case SIOCSIFMEDIA: 1629 mii = GET_MII(sc); 1630 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 1631 break; 1632 default: 1633 error = EINVAL; 1634 break; 1635 } 1636 1637 splx(s); 1638 1639 return (error); 1640 } 1641 1642 Static void 1643 aue_watchdog(struct ifnet *ifp) 1644 { 1645 struct aue_softc *sc = ifp->if_softc; 1646 struct aue_chain *c; 1647 usbd_status stat; 1648 int s; 1649 1650 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 1651 1652 ifp->if_oerrors++; 1653 printf("%s: watchdog timeout\n", USBDEVNAME(sc->aue_dev)); 1654 1655 s = splusb(); 1656 c = &sc->aue_cdata.aue_tx_chain[0]; 1657 usbd_get_xfer_status(c->aue_xfer, NULL, NULL, NULL, &stat); 1658 aue_txeof(c->aue_xfer, c, stat); 1659 1660 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1661 aue_start(ifp); 1662 splx(s); 1663 } 1664 1665 /* 1666 * Stop the adapter and free any mbufs allocated to the 1667 * RX and TX lists. 1668 */ 1669 Static void 1670 aue_stop(struct aue_softc *sc) 1671 { 1672 usbd_status err; 1673 struct ifnet *ifp; 1674 int i; 1675 1676 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__)); 1677 1678 ifp = GET_IFP(sc); 1679 ifp->if_timer = 0; 1680 1681 aue_csr_write_1(sc, AUE_CTL0, 0); 1682 aue_csr_write_1(sc, AUE_CTL1, 0); 1683 aue_reset(sc); 1684 usb_uncallout(sc->aue_stat_ch, aue_tick, sc); 1685 1686 /* Stop transfers. */ 1687 if (sc->aue_ep[AUE_ENDPT_RX] != NULL) { 1688 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]); 1689 if (err) { 1690 printf("%s: abort rx pipe failed: %s\n", 1691 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1692 } 1693 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_RX]); 1694 if (err) { 1695 printf("%s: close rx pipe failed: %s\n", 1696 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1697 } 1698 sc->aue_ep[AUE_ENDPT_RX] = NULL; 1699 } 1700 1701 if (sc->aue_ep[AUE_ENDPT_TX] != NULL) { 1702 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]); 1703 if (err) { 1704 printf("%s: abort tx pipe failed: %s\n", 1705 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1706 } 1707 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_TX]); 1708 if (err) { 1709 printf("%s: close tx pipe failed: %s\n", 1710 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1711 } 1712 sc->aue_ep[AUE_ENDPT_TX] = NULL; 1713 } 1714 1715 if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) { 1716 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]); 1717 if (err) { 1718 printf("%s: abort intr pipe failed: %s\n", 1719 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1720 } 1721 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_INTR]); 1722 if (err) { 1723 printf("%s: close intr pipe failed: %s\n", 1724 USBDEVNAME(sc->aue_dev), usbd_errstr(err)); 1725 } 1726 sc->aue_ep[AUE_ENDPT_INTR] = NULL; 1727 } 1728 1729 /* Free RX resources. */ 1730 for (i = 0; i < AUE_RX_LIST_CNT; i++) { 1731 if (sc->aue_cdata.aue_rx_chain[i].aue_mbuf != NULL) { 1732 m_freem(sc->aue_cdata.aue_rx_chain[i].aue_mbuf); 1733 sc->aue_cdata.aue_rx_chain[i].aue_mbuf = NULL; 1734 } 1735 if (sc->aue_cdata.aue_rx_chain[i].aue_xfer != NULL) { 1736 usbd_free_xfer(sc->aue_cdata.aue_rx_chain[i].aue_xfer); 1737 sc->aue_cdata.aue_rx_chain[i].aue_xfer = NULL; 1738 } 1739 } 1740 1741 /* Free TX resources. */ 1742 for (i = 0; i < AUE_TX_LIST_CNT; i++) { 1743 if (sc->aue_cdata.aue_tx_chain[i].aue_mbuf != NULL) { 1744 m_freem(sc->aue_cdata.aue_tx_chain[i].aue_mbuf); 1745 sc->aue_cdata.aue_tx_chain[i].aue_mbuf = NULL; 1746 } 1747 if (sc->aue_cdata.aue_tx_chain[i].aue_xfer != NULL) { 1748 usbd_free_xfer(sc->aue_cdata.aue_tx_chain[i].aue_xfer); 1749 sc->aue_cdata.aue_tx_chain[i].aue_xfer = NULL; 1750 } 1751 } 1752 1753 sc->aue_link = 0; 1754 1755 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1756 } 1757