1 /* $OpenBSD: if_cue.c,v 1.49 2008/09/10 14:01:23 blambert Exp $ */ 2 /* $NetBSD: if_cue.c,v 1.40 2002/07/11 21:14:26 augustss Exp $ */ 3 /* 4 * Copyright (c) 1997, 1998, 1999, 2000 5 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: src/sys/dev/usb/if_cue.c,v 1.4 2000/01/16 22:45:06 wpaul Exp $ 35 */ 36 37 /* 38 * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate 39 * adapters and others. 40 * 41 * Written by Bill Paul <wpaul@ee.columbia.edu> 42 * Electrical Engineering Department 43 * Columbia University, New York City 44 */ 45 46 /* 47 * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The 48 * RX filter uses a 512-bit multicast hash table, single perfect entry 49 * for the station address, and promiscuous mode. Unlike the ADMtek 50 * and KLSI chips, the CATC ASIC supports read and write combining 51 * mode where multiple packets can be transferred using a single bulk 52 * transaction, which helps performance a great deal. 53 */ 54 55 /* 56 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson. 57 */ 58 59 #include "bpfilter.h" 60 61 #include <sys/param.h> 62 #include <sys/systm.h> 63 #include <sys/sockio.h> 64 #include <sys/mbuf.h> 65 #include <sys/kernel.h> 66 #include <sys/socket.h> 67 #include <sys/timeout.h> 68 #include <sys/device.h> 69 70 #include <net/if.h> 71 #include <net/if_dl.h> 72 73 #if NBPFILTER > 0 74 #include <net/bpf.h> 75 #endif 76 77 #ifdef INET 78 #include <netinet/in.h> 79 #include <netinet/in_systm.h> 80 #include <netinet/in_var.h> 81 #include <netinet/ip.h> 82 #include <netinet/if_ether.h> 83 #endif 84 85 #include <dev/usb/usb.h> 86 #include <dev/usb/usbdi.h> 87 #include <dev/usb/usbdi_util.h> 88 #include <dev/usb/usbdevs.h> 89 90 #include <dev/usb/if_cuereg.h> 91 92 #ifdef CUE_DEBUG 93 #define DPRINTF(x) do { if (cuedebug) printf x; } while (0) 94 #define DPRINTFN(n,x) do { if (cuedebug >= (n)) printf x; } while (0) 95 int cuedebug = 0; 96 #else 97 #define DPRINTF(x) 98 #define DPRINTFN(n,x) 99 #endif 100 101 /* 102 * Various supported device vendors/products. 103 */ 104 struct usb_devno cue_devs[] = { 105 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, 106 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, 107 { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, 108 /* Belkin F5U111 adapter covered by NETMATE entry */ 109 }; 110 #define cue_lookup(v, p) (usb_lookup(cue_devs, v, p)) 111 112 int cue_match(struct device *, void *, void *); 113 void cue_attach(struct device *, struct device *, void *); 114 int cue_detach(struct device *, int); 115 int cue_activate(struct device *, enum devact); 116 117 struct cfdriver cue_cd = { 118 NULL, "cue", DV_IFNET 119 }; 120 121 const struct cfattach cue_ca = { 122 sizeof(struct cue_softc), 123 cue_match, 124 cue_attach, 125 cue_detach, 126 cue_activate, 127 }; 128 129 int cue_open_pipes(struct cue_softc *); 130 int cue_tx_list_init(struct cue_softc *); 131 int cue_rx_list_init(struct cue_softc *); 132 int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *); 133 int cue_send(struct cue_softc *, struct mbuf *, int); 134 void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 135 void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 136 void cue_tick(void *); 137 void cue_tick_task(void *); 138 void cue_start(struct ifnet *); 139 int cue_ioctl(struct ifnet *, u_long, caddr_t); 140 void cue_init(void *); 141 void cue_stop(struct cue_softc *); 142 void cue_watchdog(struct ifnet *); 143 144 void cue_setmulti(struct cue_softc *); 145 void cue_reset(struct cue_softc *); 146 147 int cue_csr_read_1(struct cue_softc *, int); 148 int cue_csr_write_1(struct cue_softc *, int, int); 149 int cue_csr_read_2(struct cue_softc *, int); 150 #if 0 151 int cue_csr_write_2(struct cue_softc *, int, int); 152 #endif 153 int cue_mem(struct cue_softc *, int, int, void *, int); 154 int cue_getmac(struct cue_softc *, void *); 155 156 #define CUE_SETBIT(sc, reg, x) \ 157 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 158 159 #define CUE_CLRBIT(sc, reg, x) \ 160 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 161 162 int 163 cue_csr_read_1(struct cue_softc *sc, int reg) 164 { 165 usb_device_request_t req; 166 usbd_status err; 167 u_int8_t val = 0; 168 169 if (sc->cue_dying) 170 return (0); 171 172 req.bmRequestType = UT_READ_VENDOR_DEVICE; 173 req.bRequest = CUE_CMD_READREG; 174 USETW(req.wValue, 0); 175 USETW(req.wIndex, reg); 176 USETW(req.wLength, 1); 177 178 err = usbd_do_request(sc->cue_udev, &req, &val); 179 180 if (err) { 181 DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n", 182 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 183 return (0); 184 } 185 186 DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n", 187 sc->cue_dev.dv_xname, reg, val)); 188 189 return (val); 190 } 191 192 int 193 cue_csr_read_2(struct cue_softc *sc, int reg) 194 { 195 usb_device_request_t req; 196 usbd_status err; 197 uWord val; 198 199 if (sc->cue_dying) 200 return (0); 201 202 req.bmRequestType = UT_READ_VENDOR_DEVICE; 203 req.bRequest = CUE_CMD_READREG; 204 USETW(req.wValue, 0); 205 USETW(req.wIndex, reg); 206 USETW(req.wLength, 2); 207 208 err = usbd_do_request(sc->cue_udev, &req, &val); 209 210 DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n", 211 sc->cue_dev.dv_xname, reg, UGETW(val))); 212 213 if (err) { 214 DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n", 215 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 216 return (0); 217 } 218 219 return (UGETW(val)); 220 } 221 222 int 223 cue_csr_write_1(struct cue_softc *sc, int reg, int val) 224 { 225 usb_device_request_t req; 226 usbd_status err; 227 228 if (sc->cue_dying) 229 return (0); 230 231 DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n", 232 sc->cue_dev.dv_xname, reg, val)); 233 234 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 235 req.bRequest = CUE_CMD_WRITEREG; 236 USETW(req.wValue, val); 237 USETW(req.wIndex, reg); 238 USETW(req.wLength, 0); 239 240 err = usbd_do_request(sc->cue_udev, &req, NULL); 241 242 if (err) { 243 DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n", 244 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 245 return (-1); 246 } 247 248 DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n", 249 sc->cue_dev.dv_xname, reg, cue_csr_read_1(sc, reg))); 250 251 return (0); 252 } 253 254 #if 0 255 int 256 cue_csr_write_2(struct cue_softc *sc, int reg, int aval) 257 { 258 usb_device_request_t req; 259 usbd_status err; 260 uWord val; 261 int s; 262 263 if (sc->cue_dying) 264 return (0); 265 266 DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n", 267 sc->cue_dev.dv_xname, reg, aval)); 268 269 USETW(val, aval); 270 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 271 req.bRequest = CUE_CMD_WRITEREG; 272 USETW(req.wValue, val); 273 USETW(req.wIndex, reg); 274 USETW(req.wLength, 0); 275 276 err = usbd_do_request(sc->cue_udev, &req, NULL); 277 278 if (err) { 279 DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n", 280 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 281 return (-1); 282 } 283 284 return (0); 285 } 286 #endif 287 288 int 289 cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len) 290 { 291 usb_device_request_t req; 292 usbd_status err; 293 294 DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n", 295 sc->cue_dev.dv_xname, cmd, addr, len)); 296 297 if (cmd == CUE_CMD_READSRAM) 298 req.bmRequestType = UT_READ_VENDOR_DEVICE; 299 else 300 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 301 req.bRequest = cmd; 302 USETW(req.wValue, 0); 303 USETW(req.wIndex, addr); 304 USETW(req.wLength, len); 305 306 err = usbd_do_request(sc->cue_udev, &req, buf); 307 308 if (err) { 309 DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n", 310 sc->cue_dev.dv_xname, addr, usbd_errstr(err))); 311 return (-1); 312 } 313 314 return (0); 315 } 316 317 int 318 cue_getmac(struct cue_softc *sc, void *buf) 319 { 320 usb_device_request_t req; 321 usbd_status err; 322 323 DPRINTFN(10,("%s: cue_getmac\n", sc->cue_dev.dv_xname)); 324 325 req.bmRequestType = UT_READ_VENDOR_DEVICE; 326 req.bRequest = CUE_CMD_GET_MACADDR; 327 USETW(req.wValue, 0); 328 USETW(req.wIndex, 0); 329 USETW(req.wLength, ETHER_ADDR_LEN); 330 331 err = usbd_do_request(sc->cue_udev, &req, buf); 332 333 if (err) { 334 printf("%s: read MAC address failed\n", 335 sc->cue_dev.dv_xname); 336 return (-1); 337 } 338 339 return (0); 340 } 341 342 #define CUE_BITS 9 343 344 void 345 cue_setmulti(struct cue_softc *sc) 346 { 347 struct ifnet *ifp; 348 struct ether_multi *enm; 349 struct ether_multistep step; 350 u_int32_t h, i; 351 352 ifp = GET_IFP(sc); 353 354 DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n", 355 sc->cue_dev.dv_xname, ifp->if_flags)); 356 357 if (ifp->if_flags & IFF_PROMISC) { 358 allmulti: 359 ifp->if_flags |= IFF_ALLMULTI; 360 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 361 sc->cue_mctab[i] = 0xFF; 362 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 363 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 364 return; 365 } 366 367 /* first, zot all the existing hash bits */ 368 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 369 sc->cue_mctab[i] = 0; 370 371 /* now program new ones */ 372 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 373 while (enm != NULL) { 374 if (memcmp(enm->enm_addrlo, 375 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) 376 goto allmulti; 377 378 h = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN) & 379 ((1 << CUE_BITS) - 1); 380 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 381 ETHER_NEXT_MULTI(step, enm); 382 } 383 384 ifp->if_flags &= ~IFF_ALLMULTI; 385 386 /* 387 * Also include the broadcast address in the filter 388 * so we can receive broadcast frames. 389 */ 390 if (ifp->if_flags & IFF_BROADCAST) { 391 h = ether_crc32_le(etherbroadcastaddr, ETHER_ADDR_LEN) & 392 ((1 << CUE_BITS) - 1); 393 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 394 } 395 396 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 397 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 398 } 399 400 void 401 cue_reset(struct cue_softc *sc) 402 { 403 usb_device_request_t req; 404 usbd_status err; 405 406 DPRINTFN(2,("%s: cue_reset\n", sc->cue_dev.dv_xname)); 407 408 if (sc->cue_dying) 409 return; 410 411 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 412 req.bRequest = CUE_CMD_RESET; 413 USETW(req.wValue, 0); 414 USETW(req.wIndex, 0); 415 USETW(req.wLength, 0); 416 417 err = usbd_do_request(sc->cue_udev, &req, NULL); 418 419 if (err) 420 printf("%s: reset failed\n", sc->cue_dev.dv_xname); 421 422 /* Wait a little while for the chip to get its brains in order. */ 423 usbd_delay_ms(sc->cue_udev, 1); 424 } 425 426 /* 427 * Probe for a CATC chip. 428 */ 429 int 430 cue_match(struct device *parent, void *match, void *aux) 431 { 432 struct usb_attach_arg *uaa = aux; 433 434 if (uaa->iface != NULL) 435 return (UMATCH_NONE); 436 437 return (cue_lookup(uaa->vendor, uaa->product) != NULL ? 438 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 439 } 440 441 /* 442 * Attach the interface. Allocate softc structures, do ifmedia 443 * setup and ethernet/BPF attach. 444 */ 445 void 446 cue_attach(struct device *parent, struct device *self, void *aux) 447 { 448 struct cue_softc *sc = (struct cue_softc *)self; 449 struct usb_attach_arg *uaa = aux; 450 int s; 451 u_char eaddr[ETHER_ADDR_LEN]; 452 usbd_device_handle dev = uaa->device; 453 usbd_interface_handle iface; 454 usbd_status err; 455 struct ifnet *ifp; 456 usb_interface_descriptor_t *id; 457 usb_endpoint_descriptor_t *ed; 458 int i; 459 460 DPRINTFN(5,(" : cue_attach: sc=%p, dev=%p", sc, dev)); 461 462 err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1); 463 if (err) { 464 printf("%s: setting config no failed\n", 465 sc->cue_dev.dv_xname); 466 return; 467 } 468 469 sc->cue_udev = dev; 470 sc->cue_product = uaa->product; 471 sc->cue_vendor = uaa->vendor; 472 473 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc); 474 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc); 475 476 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 477 if (err) { 478 printf("%s: getting interface handle failed\n", 479 sc->cue_dev.dv_xname); 480 return; 481 } 482 483 sc->cue_iface = iface; 484 id = usbd_get_interface_descriptor(iface); 485 486 /* Find endpoints. */ 487 for (i = 0; i < id->bNumEndpoints; i++) { 488 ed = usbd_interface2endpoint_descriptor(iface, i); 489 if (ed == NULL) { 490 printf("%s: couldn't get ep %d\n", 491 sc->cue_dev.dv_xname, i); 492 return; 493 } 494 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 495 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 496 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 497 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 498 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 499 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 500 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 501 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 502 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 503 } 504 } 505 506 #if 0 507 /* Reset the adapter. */ 508 cue_reset(sc); 509 #endif 510 /* 511 * Get station address. 512 */ 513 cue_getmac(sc, &eaddr); 514 515 s = splnet(); 516 517 /* 518 * A CATC chip was detected. Inform the world. 519 */ 520 printf("%s: address %s\n", sc->cue_dev.dv_xname, 521 ether_sprintf(eaddr)); 522 523 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 524 525 /* Initialize interface info.*/ 526 ifp = GET_IFP(sc); 527 ifp->if_softc = sc; 528 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 529 ifp->if_ioctl = cue_ioctl; 530 ifp->if_start = cue_start; 531 ifp->if_watchdog = cue_watchdog; 532 strlcpy(ifp->if_xname, sc->cue_dev.dv_xname, IFNAMSIZ); 533 534 IFQ_SET_READY(&ifp->if_snd); 535 536 /* Attach the interface. */ 537 if_attach(ifp); 538 ether_ifattach(ifp); 539 540 timeout_set(&sc->cue_stat_ch, cue_tick, sc); 541 542 sc->cue_attached = 1; 543 splx(s); 544 545 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev, 546 &sc->cue_dev); 547 } 548 549 int 550 cue_detach(struct device *self, int flags) 551 { 552 struct cue_softc *sc = (struct cue_softc *)self; 553 struct ifnet *ifp = GET_IFP(sc); 554 int s; 555 556 DPRINTFN(2,("%s: %s: enter\n", sc->cue_dev.dv_xname, __func__)); 557 558 timeout_del(&sc->cue_stat_ch); 559 /* 560 * Remove any pending task. It cannot be executing because it run 561 * in the same thread as detach. 562 */ 563 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 564 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 565 566 if (!sc->cue_attached) { 567 /* Detached before attached finished, so just bail out. */ 568 return (0); 569 } 570 571 s = splusb(); 572 573 if (ifp->if_flags & IFF_RUNNING) 574 cue_stop(sc); 575 576 ether_ifdetach(ifp); 577 578 if_detach(ifp); 579 580 #ifdef DIAGNOSTIC 581 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 582 sc->cue_ep[CUE_ENDPT_RX] != NULL || 583 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 584 printf("%s: detach has active endpoints\n", 585 sc->cue_dev.dv_xname); 586 #endif 587 588 sc->cue_attached = 0; 589 splx(s); 590 591 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, 592 &sc->cue_dev); 593 594 return (0); 595 } 596 597 int 598 cue_activate(struct device *self, enum devact act) 599 { 600 struct cue_softc *sc = (struct cue_softc *)self; 601 602 DPRINTFN(2,("%s: %s: enter\n", sc->cue_dev.dv_xname, __func__)); 603 604 switch (act) { 605 case DVACT_ACTIVATE: 606 break; 607 608 case DVACT_DEACTIVATE: 609 sc->cue_dying = 1; 610 break; 611 } 612 return (0); 613 } 614 615 /* 616 * Initialize an RX descriptor and attach an MBUF cluster. 617 */ 618 int 619 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 620 { 621 struct mbuf *m_new = NULL; 622 623 if (m == NULL) { 624 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 625 if (m_new == NULL) { 626 printf("%s: no memory for rx list " 627 "-- packet dropped!\n", sc->cue_dev.dv_xname); 628 return (ENOBUFS); 629 } 630 631 MCLGET(m_new, M_DONTWAIT); 632 if (!(m_new->m_flags & M_EXT)) { 633 printf("%s: no memory for rx list " 634 "-- packet dropped!\n", sc->cue_dev.dv_xname); 635 m_freem(m_new); 636 return (ENOBUFS); 637 } 638 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 639 } else { 640 m_new = m; 641 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 642 m_new->m_data = m_new->m_ext.ext_buf; 643 } 644 645 m_adj(m_new, ETHER_ALIGN); 646 c->cue_mbuf = m_new; 647 648 return (0); 649 } 650 651 int 652 cue_rx_list_init(struct cue_softc *sc) 653 { 654 struct cue_cdata *cd; 655 struct cue_chain *c; 656 int i; 657 658 cd = &sc->cue_cdata; 659 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 660 c = &cd->cue_rx_chain[i]; 661 c->cue_sc = sc; 662 c->cue_idx = i; 663 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 664 return (ENOBUFS); 665 if (c->cue_xfer == NULL) { 666 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 667 if (c->cue_xfer == NULL) 668 return (ENOBUFS); 669 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 670 if (c->cue_buf == NULL) { 671 usbd_free_xfer(c->cue_xfer); 672 return (ENOBUFS); 673 } 674 } 675 } 676 677 return (0); 678 } 679 680 int 681 cue_tx_list_init(struct cue_softc *sc) 682 { 683 struct cue_cdata *cd; 684 struct cue_chain *c; 685 int i; 686 687 cd = &sc->cue_cdata; 688 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 689 c = &cd->cue_tx_chain[i]; 690 c->cue_sc = sc; 691 c->cue_idx = i; 692 c->cue_mbuf = NULL; 693 if (c->cue_xfer == NULL) { 694 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 695 if (c->cue_xfer == NULL) 696 return (ENOBUFS); 697 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 698 if (c->cue_buf == NULL) { 699 usbd_free_xfer(c->cue_xfer); 700 return (ENOBUFS); 701 } 702 } 703 } 704 705 return (0); 706 } 707 708 /* 709 * A frame has been uploaded: pass the resulting mbuf chain up to 710 * the higher level protocols. 711 */ 712 void 713 cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 714 { 715 struct cue_chain *c = priv; 716 struct cue_softc *sc = c->cue_sc; 717 struct ifnet *ifp = GET_IFP(sc); 718 struct mbuf *m; 719 int total_len = 0; 720 u_int16_t len; 721 int s; 722 723 DPRINTFN(10,("%s: %s: enter status=%d\n", sc->cue_dev.dv_xname, 724 __func__, status)); 725 726 if (sc->cue_dying) 727 return; 728 729 if (!(ifp->if_flags & IFF_RUNNING)) 730 return; 731 732 if (status != USBD_NORMAL_COMPLETION) { 733 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 734 return; 735 sc->cue_rx_errs++; 736 if (usbd_ratecheck(&sc->cue_rx_notice)) { 737 printf("%s: %u usb errors on rx: %s\n", 738 sc->cue_dev.dv_xname, sc->cue_rx_errs, 739 usbd_errstr(status)); 740 sc->cue_rx_errs = 0; 741 } 742 if (status == USBD_STALLED) 743 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 744 goto done; 745 } 746 747 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 748 749 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 750 751 m = c->cue_mbuf; 752 len = UGETW(mtod(m, u_int8_t *)); 753 754 /* No errors; receive the packet. */ 755 total_len = len; 756 757 if (len < sizeof(struct ether_header)) { 758 ifp->if_ierrors++; 759 goto done; 760 } 761 762 ifp->if_ipackets++; 763 m_adj(m, sizeof(u_int16_t)); 764 m->m_pkthdr.len = m->m_len = total_len; 765 766 m->m_pkthdr.rcvif = ifp; 767 768 s = splnet(); 769 770 /* XXX ugly */ 771 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 772 ifp->if_ierrors++; 773 goto done1; 774 } 775 776 #if NBPFILTER > 0 777 /* 778 * Handle BPF listeners. Let the BPF user see the packet, but 779 * don't pass it up to the ether_input() layer unless it's 780 * a broadcast packet, multicast packet, matches our ethernet 781 * address or the interface is in promiscuous mode. 782 */ 783 if (ifp->if_bpf) 784 bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_IN); 785 #endif 786 787 DPRINTFN(10,("%s: %s: deliver %d\n", sc->cue_dev.dv_xname, 788 __func__, m->m_len)); 789 ether_input_mbuf(ifp, m); 790 done1: 791 splx(s); 792 793 done: 794 /* Setup new transfer. */ 795 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 796 c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 797 USBD_NO_TIMEOUT, cue_rxeof); 798 usbd_transfer(c->cue_xfer); 799 800 DPRINTFN(10,("%s: %s: start rx\n", sc->cue_dev.dv_xname, 801 __func__)); 802 } 803 804 /* 805 * A frame was downloaded to the chip. It's safe for us to clean up 806 * the list buffers. 807 */ 808 void 809 cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 810 { 811 struct cue_chain *c = priv; 812 struct cue_softc *sc = c->cue_sc; 813 struct ifnet *ifp = GET_IFP(sc); 814 int s; 815 816 if (sc->cue_dying) 817 return; 818 819 s = splnet(); 820 821 DPRINTFN(10,("%s: %s: enter status=%d\n", sc->cue_dev.dv_xname, 822 __func__, status)); 823 824 ifp->if_timer = 0; 825 ifp->if_flags &= ~IFF_OACTIVE; 826 827 if (status != USBD_NORMAL_COMPLETION) { 828 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 829 splx(s); 830 return; 831 } 832 ifp->if_oerrors++; 833 printf("%s: usb error on tx: %s\n", sc->cue_dev.dv_xname, 834 usbd_errstr(status)); 835 if (status == USBD_STALLED) 836 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 837 splx(s); 838 return; 839 } 840 841 ifp->if_opackets++; 842 843 m_freem(c->cue_mbuf); 844 c->cue_mbuf = NULL; 845 846 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 847 cue_start(ifp); 848 849 splx(s); 850 } 851 852 void 853 cue_tick(void *xsc) 854 { 855 struct cue_softc *sc = xsc; 856 857 if (sc == NULL) 858 return; 859 860 if (sc->cue_dying) 861 return; 862 863 DPRINTFN(2,("%s: %s: enter\n", sc->cue_dev.dv_xname, __func__)); 864 865 /* Perform statistics update in process context. */ 866 usb_add_task(sc->cue_udev, &sc->cue_tick_task); 867 } 868 869 void 870 cue_tick_task(void *xsc) 871 { 872 struct cue_softc *sc = xsc; 873 struct ifnet *ifp; 874 875 if (sc->cue_dying) 876 return; 877 878 DPRINTFN(2,("%s: %s: enter\n", sc->cue_dev.dv_xname, __func__)); 879 880 ifp = GET_IFP(sc); 881 882 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 883 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 884 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 885 886 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 887 ifp->if_ierrors++; 888 } 889 890 int 891 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 892 { 893 int total_len; 894 struct cue_chain *c; 895 usbd_status err; 896 897 c = &sc->cue_cdata.cue_tx_chain[idx]; 898 899 /* 900 * Copy the mbuf data into a contiguous buffer, leaving two 901 * bytes at the beginning to hold the frame length. 902 */ 903 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 904 c->cue_mbuf = m; 905 906 total_len = m->m_pkthdr.len + 2; 907 908 DPRINTFN(10,("%s: %s: total_len=%d\n", 909 sc->cue_dev.dv_xname, __func__, total_len)); 910 911 /* The first two bytes are the frame length */ 912 c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len; 913 c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 914 915 /* XXX 10000 */ 916 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], 917 c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof); 918 919 /* Transmit */ 920 err = usbd_transfer(c->cue_xfer); 921 if (err != USBD_IN_PROGRESS) { 922 printf("%s: cue_send error=%s\n", sc->cue_dev.dv_xname, 923 usbd_errstr(err)); 924 /* Stop the interface from process context. */ 925 usb_add_task(sc->cue_udev, &sc->cue_stop_task); 926 return (EIO); 927 } 928 929 sc->cue_cdata.cue_tx_cnt++; 930 931 return (0); 932 } 933 934 void 935 cue_start(struct ifnet *ifp) 936 { 937 struct cue_softc *sc = ifp->if_softc; 938 struct mbuf *m_head = NULL; 939 940 if (sc->cue_dying) 941 return; 942 943 DPRINTFN(10,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 944 945 if (ifp->if_flags & IFF_OACTIVE) 946 return; 947 948 IFQ_POLL(&ifp->if_snd, m_head); 949 if (m_head == NULL) 950 return; 951 952 if (cue_send(sc, m_head, 0)) { 953 ifp->if_flags |= IFF_OACTIVE; 954 return; 955 } 956 957 IFQ_DEQUEUE(&ifp->if_snd, m_head); 958 959 #if NBPFILTER > 0 960 /* 961 * If there's a BPF listener, bounce a copy of this frame 962 * to him. 963 */ 964 if (ifp->if_bpf) 965 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); 966 #endif 967 968 ifp->if_flags |= IFF_OACTIVE; 969 970 /* 971 * Set a timeout in case the chip goes out to lunch. 972 */ 973 ifp->if_timer = 5; 974 } 975 976 void 977 cue_init(void *xsc) 978 { 979 struct cue_softc *sc = xsc; 980 struct ifnet *ifp = GET_IFP(sc); 981 int i, s, ctl; 982 u_char *eaddr; 983 984 if (sc->cue_dying) 985 return; 986 987 DPRINTFN(10,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 988 989 if (ifp->if_flags & IFF_RUNNING) 990 return; 991 992 s = splnet(); 993 994 /* 995 * Cancel pending I/O and free all RX/TX buffers. 996 */ 997 #if 1 998 cue_reset(sc); 999 #endif 1000 1001 /* Set advanced operation modes. */ 1002 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1003 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1004 1005 eaddr = sc->arpcom.ac_enaddr; 1006 /* Set MAC address */ 1007 for (i = 0; i < ETHER_ADDR_LEN; i++) 1008 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1009 1010 /* Enable RX logic. */ 1011 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1012 if (ifp->if_flags & IFF_PROMISC) 1013 ctl |= CUE_ETHCTL_PROMISC; 1014 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1015 1016 /* Init TX ring. */ 1017 if (cue_tx_list_init(sc) == ENOBUFS) { 1018 printf("%s: tx list init failed\n", sc->cue_dev.dv_xname); 1019 splx(s); 1020 return; 1021 } 1022 1023 /* Init RX ring. */ 1024 if (cue_rx_list_init(sc) == ENOBUFS) { 1025 printf("%s: rx list init failed\n", sc->cue_dev.dv_xname); 1026 splx(s); 1027 return; 1028 } 1029 1030 /* Load the multicast filter. */ 1031 cue_setmulti(sc); 1032 1033 /* 1034 * Set the number of RX and TX buffers that we want 1035 * to reserve inside the ASIC. 1036 */ 1037 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1038 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1039 1040 /* Set advanced operation modes. */ 1041 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1042 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1043 1044 /* Program the LED operation. */ 1045 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1046 1047 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1048 if (cue_open_pipes(sc)) { 1049 splx(s); 1050 return; 1051 } 1052 } 1053 1054 ifp->if_flags |= IFF_RUNNING; 1055 ifp->if_flags &= ~IFF_OACTIVE; 1056 1057 splx(s); 1058 1059 timeout_add_sec(&sc->cue_stat_ch, 1); 1060 } 1061 1062 int 1063 cue_open_pipes(struct cue_softc *sc) 1064 { 1065 struct cue_chain *c; 1066 usbd_status err; 1067 int i; 1068 1069 /* Open RX and TX pipes. */ 1070 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1071 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1072 if (err) { 1073 printf("%s: open rx pipe failed: %s\n", 1074 sc->cue_dev.dv_xname, usbd_errstr(err)); 1075 return (EIO); 1076 } 1077 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1078 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1079 if (err) { 1080 printf("%s: open tx pipe failed: %s\n", 1081 sc->cue_dev.dv_xname, usbd_errstr(err)); 1082 return (EIO); 1083 } 1084 1085 /* Start up the receive pipe. */ 1086 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1087 c = &sc->cue_cdata.cue_rx_chain[i]; 1088 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 1089 c, c->cue_buf, CUE_BUFSZ, 1090 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1091 cue_rxeof); 1092 usbd_transfer(c->cue_xfer); 1093 } 1094 1095 return (0); 1096 } 1097 1098 int 1099 cue_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 1100 { 1101 struct cue_softc *sc = ifp->if_softc; 1102 struct ifaddr *ifa = (struct ifaddr *)data; 1103 struct ifreq *ifr = (struct ifreq *)data; 1104 int s, error = 0; 1105 1106 if (sc->cue_dying) 1107 return (EIO); 1108 1109 s = splnet(); 1110 1111 switch(command) { 1112 case SIOCSIFADDR: 1113 ifp->if_flags |= IFF_UP; 1114 cue_init(sc); 1115 1116 switch (ifa->ifa_addr->sa_family) { 1117 #ifdef INET 1118 case AF_INET: 1119 arp_ifinit(&sc->arpcom, ifa); 1120 break; 1121 #endif /* INET */ 1122 } 1123 break; 1124 1125 case SIOCSIFMTU: 1126 if (ifr->ifr_mtu > ETHERMTU) 1127 error = EINVAL; 1128 else 1129 ifp->if_mtu = ifr->ifr_mtu; 1130 break; 1131 1132 case SIOCSIFFLAGS: 1133 if (ifp->if_flags & IFF_UP) { 1134 if (ifp->if_flags & IFF_RUNNING && 1135 ifp->if_flags & IFF_PROMISC && 1136 !(sc->cue_if_flags & IFF_PROMISC)) { 1137 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1138 cue_setmulti(sc); 1139 } else if (ifp->if_flags & IFF_RUNNING && 1140 !(ifp->if_flags & IFF_PROMISC) && 1141 sc->cue_if_flags & IFF_PROMISC) { 1142 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1143 cue_setmulti(sc); 1144 } else if (!(ifp->if_flags & IFF_RUNNING)) 1145 cue_init(sc); 1146 } else { 1147 if (ifp->if_flags & IFF_RUNNING) 1148 cue_stop(sc); 1149 } 1150 sc->cue_if_flags = ifp->if_flags; 1151 error = 0; 1152 break; 1153 case SIOCADDMULTI: 1154 case SIOCDELMULTI: 1155 error = (command == SIOCADDMULTI) ? 1156 ether_addmulti(ifr, &sc->arpcom) : 1157 ether_delmulti(ifr, &sc->arpcom); 1158 1159 if (error == ENETRESET) { 1160 /* 1161 * Multicast list has changed; set the hardware 1162 * filter accordingly. 1163 */ 1164 if (ifp->if_flags & IFF_RUNNING) 1165 cue_setmulti(sc); 1166 error = 0; 1167 } 1168 break; 1169 default: 1170 error = EINVAL; 1171 break; 1172 } 1173 1174 splx(s); 1175 1176 return (error); 1177 } 1178 1179 void 1180 cue_watchdog(struct ifnet *ifp) 1181 { 1182 struct cue_softc *sc = ifp->if_softc; 1183 struct cue_chain *c; 1184 usbd_status stat; 1185 int s; 1186 1187 DPRINTFN(5,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 1188 1189 if (sc->cue_dying) 1190 return; 1191 1192 ifp->if_oerrors++; 1193 printf("%s: watchdog timeout\n", sc->cue_dev.dv_xname); 1194 1195 s = splusb(); 1196 c = &sc->cue_cdata.cue_tx_chain[0]; 1197 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1198 cue_txeof(c->cue_xfer, c, stat); 1199 1200 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1201 cue_start(ifp); 1202 splx(s); 1203 } 1204 1205 /* 1206 * Stop the adapter and free any mbufs allocated to the 1207 * RX and TX lists. 1208 */ 1209 void 1210 cue_stop(struct cue_softc *sc) 1211 { 1212 usbd_status err; 1213 struct ifnet *ifp; 1214 int i; 1215 1216 DPRINTFN(10,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 1217 1218 ifp = GET_IFP(sc); 1219 ifp->if_timer = 0; 1220 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1221 1222 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1223 cue_reset(sc); 1224 timeout_del(&sc->cue_stat_ch); 1225 1226 /* Stop transfers. */ 1227 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1228 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1229 if (err) { 1230 printf("%s: abort rx pipe failed: %s\n", 1231 sc->cue_dev.dv_xname, usbd_errstr(err)); 1232 } 1233 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1234 if (err) { 1235 printf("%s: close rx pipe failed: %s\n", 1236 sc->cue_dev.dv_xname, usbd_errstr(err)); 1237 } 1238 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1239 } 1240 1241 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1242 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1243 if (err) { 1244 printf("%s: abort tx pipe failed: %s\n", 1245 sc->cue_dev.dv_xname, usbd_errstr(err)); 1246 } 1247 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1248 if (err) { 1249 printf("%s: close tx pipe failed: %s\n", 1250 sc->cue_dev.dv_xname, usbd_errstr(err)); 1251 } 1252 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1253 } 1254 1255 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1256 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1257 if (err) { 1258 printf("%s: abort intr pipe failed: %s\n", 1259 sc->cue_dev.dv_xname, usbd_errstr(err)); 1260 } 1261 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1262 if (err) { 1263 printf("%s: close intr pipe failed: %s\n", 1264 sc->cue_dev.dv_xname, usbd_errstr(err)); 1265 } 1266 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1267 } 1268 1269 /* Free RX resources. */ 1270 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1271 if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) { 1272 m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf); 1273 sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL; 1274 } 1275 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1276 usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1277 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1278 } 1279 } 1280 1281 /* Free TX resources. */ 1282 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1283 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1284 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1285 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1286 } 1287 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1288 usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1289 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1290 } 1291 } 1292 } 1293