1 /* $OpenBSD: if_cue.c,v 1.75 2016/04/13 11:03:37 mpi 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 72 #if NBPFILTER > 0 73 #include <net/bpf.h> 74 #endif 75 76 #include <netinet/in.h> 77 #include <netinet/if_ether.h> 78 79 #include <dev/usb/usb.h> 80 #include <dev/usb/usbdi.h> 81 #include <dev/usb/usbdi_util.h> 82 #include <dev/usb/usbdevs.h> 83 84 #include <dev/usb/if_cuereg.h> 85 86 #ifdef CUE_DEBUG 87 #define DPRINTF(x) do { if (cuedebug) printf x; } while (0) 88 #define DPRINTFN(n,x) do { if (cuedebug >= (n)) printf x; } while (0) 89 int cuedebug = 0; 90 #else 91 #define DPRINTF(x) 92 #define DPRINTFN(n,x) 93 #endif 94 95 /* 96 * Various supported device vendors/products. 97 */ 98 struct usb_devno cue_devs[] = { 99 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, 100 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, 101 { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, 102 /* Belkin F5U111 adapter covered by NETMATE entry */ 103 }; 104 105 int cue_match(struct device *, void *, void *); 106 void cue_attach(struct device *, struct device *, void *); 107 int cue_detach(struct device *, int); 108 109 struct cfdriver cue_cd = { 110 NULL, "cue", DV_IFNET 111 }; 112 113 const struct cfattach cue_ca = { 114 sizeof(struct cue_softc), cue_match, cue_attach, cue_detach 115 }; 116 117 int cue_open_pipes(struct cue_softc *); 118 int cue_tx_list_init(struct cue_softc *); 119 int cue_rx_list_init(struct cue_softc *); 120 int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *); 121 int cue_send(struct cue_softc *, struct mbuf *, int); 122 void cue_rxeof(struct usbd_xfer *, void *, usbd_status); 123 void cue_txeof(struct usbd_xfer *, void *, usbd_status); 124 void cue_tick(void *); 125 void cue_tick_task(void *); 126 void cue_start(struct ifnet *); 127 int cue_ioctl(struct ifnet *, u_long, caddr_t); 128 void cue_init(void *); 129 void cue_stop(struct cue_softc *); 130 void cue_watchdog(struct ifnet *); 131 132 void cue_setmulti(struct cue_softc *); 133 void cue_reset(struct cue_softc *); 134 135 int cue_csr_read_1(struct cue_softc *, int); 136 int cue_csr_write_1(struct cue_softc *, int, int); 137 int cue_csr_read_2(struct cue_softc *, int); 138 #if 0 139 int cue_csr_write_2(struct cue_softc *, int, int); 140 #endif 141 int cue_mem(struct cue_softc *, int, int, void *, int); 142 int cue_getmac(struct cue_softc *, void *); 143 144 #define CUE_SETBIT(sc, reg, x) \ 145 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 146 147 #define CUE_CLRBIT(sc, reg, x) \ 148 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 149 150 int 151 cue_csr_read_1(struct cue_softc *sc, int reg) 152 { 153 usb_device_request_t req; 154 usbd_status err; 155 u_int8_t val = 0; 156 157 if (usbd_is_dying(sc->cue_udev)) 158 return (0); 159 160 req.bmRequestType = UT_READ_VENDOR_DEVICE; 161 req.bRequest = CUE_CMD_READREG; 162 USETW(req.wValue, 0); 163 USETW(req.wIndex, reg); 164 USETW(req.wLength, 1); 165 166 err = usbd_do_request(sc->cue_udev, &req, &val); 167 168 if (err) { 169 DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n", 170 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 171 return (0); 172 } 173 174 DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n", 175 sc->cue_dev.dv_xname, reg, val)); 176 177 return (val); 178 } 179 180 int 181 cue_csr_read_2(struct cue_softc *sc, int reg) 182 { 183 usb_device_request_t req; 184 usbd_status err; 185 uWord val; 186 187 if (usbd_is_dying(sc->cue_udev)) 188 return (0); 189 190 req.bmRequestType = UT_READ_VENDOR_DEVICE; 191 req.bRequest = CUE_CMD_READREG; 192 USETW(req.wValue, 0); 193 USETW(req.wIndex, reg); 194 USETW(req.wLength, 2); 195 196 err = usbd_do_request(sc->cue_udev, &req, &val); 197 198 DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n", 199 sc->cue_dev.dv_xname, reg, UGETW(val))); 200 201 if (err) { 202 DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n", 203 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 204 return (0); 205 } 206 207 return (UGETW(val)); 208 } 209 210 int 211 cue_csr_write_1(struct cue_softc *sc, int reg, int val) 212 { 213 usb_device_request_t req; 214 usbd_status err; 215 216 if (usbd_is_dying(sc->cue_udev)) 217 return (0); 218 219 DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n", 220 sc->cue_dev.dv_xname, reg, val)); 221 222 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 223 req.bRequest = CUE_CMD_WRITEREG; 224 USETW(req.wValue, val); 225 USETW(req.wIndex, reg); 226 USETW(req.wLength, 0); 227 228 err = usbd_do_request(sc->cue_udev, &req, NULL); 229 230 if (err) { 231 DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n", 232 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 233 return (-1); 234 } 235 236 DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n", 237 sc->cue_dev.dv_xname, reg, cue_csr_read_1(sc, reg))); 238 239 return (0); 240 } 241 242 #if 0 243 int 244 cue_csr_write_2(struct cue_softc *sc, int reg, int aval) 245 { 246 usb_device_request_t req; 247 usbd_status err; 248 uWord val; 249 int s; 250 251 if (usbd_is_dying(sc->cue_udev)) 252 return (0); 253 254 DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n", 255 sc->cue_dev.dv_xname, reg, aval)); 256 257 USETW(val, aval); 258 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 259 req.bRequest = CUE_CMD_WRITEREG; 260 USETW(req.wValue, val); 261 USETW(req.wIndex, reg); 262 USETW(req.wLength, 0); 263 264 err = usbd_do_request(sc->cue_udev, &req, NULL); 265 266 if (err) { 267 DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n", 268 sc->cue_dev.dv_xname, reg, usbd_errstr(err))); 269 return (-1); 270 } 271 272 return (0); 273 } 274 #endif 275 276 int 277 cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len) 278 { 279 usb_device_request_t req; 280 usbd_status err; 281 282 DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n", 283 sc->cue_dev.dv_xname, cmd, addr, len)); 284 285 if (cmd == CUE_CMD_READSRAM) 286 req.bmRequestType = UT_READ_VENDOR_DEVICE; 287 else 288 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 289 req.bRequest = cmd; 290 USETW(req.wValue, 0); 291 USETW(req.wIndex, addr); 292 USETW(req.wLength, len); 293 294 err = usbd_do_request(sc->cue_udev, &req, buf); 295 296 if (err) { 297 DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n", 298 sc->cue_dev.dv_xname, addr, usbd_errstr(err))); 299 return (-1); 300 } 301 302 return (0); 303 } 304 305 int 306 cue_getmac(struct cue_softc *sc, void *buf) 307 { 308 usb_device_request_t req; 309 usbd_status err; 310 311 DPRINTFN(10,("%s: cue_getmac\n", sc->cue_dev.dv_xname)); 312 313 req.bmRequestType = UT_READ_VENDOR_DEVICE; 314 req.bRequest = CUE_CMD_GET_MACADDR; 315 USETW(req.wValue, 0); 316 USETW(req.wIndex, 0); 317 USETW(req.wLength, ETHER_ADDR_LEN); 318 319 err = usbd_do_request(sc->cue_udev, &req, buf); 320 321 if (err) { 322 printf("%s: read MAC address failed\n", 323 sc->cue_dev.dv_xname); 324 return (-1); 325 } 326 327 return (0); 328 } 329 330 #define CUE_BITS 9 331 332 void 333 cue_setmulti(struct cue_softc *sc) 334 { 335 struct arpcom *ac = &sc->arpcom; 336 struct ifnet *ifp; 337 struct ether_multi *enm; 338 struct ether_multistep step; 339 u_int32_t h, i; 340 341 ifp = GET_IFP(sc); 342 343 DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n", 344 sc->cue_dev.dv_xname, ifp->if_flags)); 345 346 if (ifp->if_flags & IFF_PROMISC || ac->ac_multirangecnt > 0) { 347 ifp->if_flags |= IFF_ALLMULTI; 348 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 349 sc->cue_mctab[i] = 0xFF; 350 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 351 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 352 return; 353 } 354 355 /* first, zot all the existing hash bits */ 356 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 357 sc->cue_mctab[i] = 0; 358 359 /* now program new ones */ 360 ETHER_FIRST_MULTI(step, ac, enm); 361 while (enm != NULL) { 362 h = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN) & 363 ((1 << CUE_BITS) - 1); 364 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 365 ETHER_NEXT_MULTI(step, enm); 366 } 367 368 ifp->if_flags &= ~IFF_ALLMULTI; 369 370 /* 371 * Also include the broadcast address in the filter 372 * so we can receive broadcast frames. 373 */ 374 if (ifp->if_flags & IFF_BROADCAST) { 375 h = ether_crc32_le(etherbroadcastaddr, ETHER_ADDR_LEN) & 376 ((1 << CUE_BITS) - 1); 377 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 378 } 379 380 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 381 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 382 } 383 384 void 385 cue_reset(struct cue_softc *sc) 386 { 387 usb_device_request_t req; 388 usbd_status err; 389 390 DPRINTFN(2,("%s: cue_reset\n", sc->cue_dev.dv_xname)); 391 392 if (usbd_is_dying(sc->cue_udev)) 393 return; 394 395 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 396 req.bRequest = CUE_CMD_RESET; 397 USETW(req.wValue, 0); 398 USETW(req.wIndex, 0); 399 USETW(req.wLength, 0); 400 401 err = usbd_do_request(sc->cue_udev, &req, NULL); 402 403 if (err) 404 printf("%s: reset failed\n", sc->cue_dev.dv_xname); 405 406 /* Wait a little while for the chip to get its brains in order. */ 407 usbd_delay_ms(sc->cue_udev, 1); 408 } 409 410 /* 411 * Probe for a CATC chip. 412 */ 413 int 414 cue_match(struct device *parent, void *match, void *aux) 415 { 416 struct usb_attach_arg *uaa = aux; 417 418 if (uaa->iface != NULL) 419 return (UMATCH_NONE); 420 421 return (usb_lookup(cue_devs, uaa->vendor, uaa->product) != NULL ? 422 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 423 } 424 425 /* 426 * Attach the interface. Allocate softc structures, do ifmedia 427 * setup and ethernet/BPF attach. 428 */ 429 void 430 cue_attach(struct device *parent, struct device *self, void *aux) 431 { 432 struct cue_softc *sc = (struct cue_softc *)self; 433 struct usb_attach_arg *uaa = aux; 434 int s; 435 u_char eaddr[ETHER_ADDR_LEN]; 436 struct usbd_device *dev = uaa->device; 437 struct usbd_interface *iface; 438 usbd_status err; 439 struct ifnet *ifp; 440 usb_interface_descriptor_t *id; 441 usb_endpoint_descriptor_t *ed; 442 int i; 443 444 DPRINTFN(5,(" : cue_attach: sc=%p, dev=%p", sc, dev)); 445 446 sc->cue_udev = dev; 447 448 err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1); 449 if (err) { 450 printf("%s: setting config no failed\n", 451 sc->cue_dev.dv_xname); 452 return; 453 } 454 455 sc->cue_product = uaa->product; 456 sc->cue_vendor = uaa->vendor; 457 458 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc, 459 USB_TASK_TYPE_GENERIC); 460 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc, 461 USB_TASK_TYPE_GENERIC); 462 463 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 464 if (err) { 465 printf("%s: getting interface handle failed\n", 466 sc->cue_dev.dv_xname); 467 return; 468 } 469 470 sc->cue_iface = iface; 471 id = usbd_get_interface_descriptor(iface); 472 473 /* Find endpoints. */ 474 for (i = 0; i < id->bNumEndpoints; i++) { 475 ed = usbd_interface2endpoint_descriptor(iface, i); 476 if (ed == NULL) { 477 printf("%s: couldn't get ep %d\n", 478 sc->cue_dev.dv_xname, i); 479 return; 480 } 481 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 482 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 483 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 484 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 485 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 486 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 487 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 488 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 489 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 490 } 491 } 492 493 #if 0 494 /* Reset the adapter. */ 495 cue_reset(sc); 496 #endif 497 /* 498 * Get station address. 499 */ 500 cue_getmac(sc, &eaddr); 501 502 s = splnet(); 503 504 /* 505 * A CATC chip was detected. Inform the world. 506 */ 507 printf("%s: address %s\n", sc->cue_dev.dv_xname, 508 ether_sprintf(eaddr)); 509 510 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 511 512 /* Initialize interface info.*/ 513 ifp = GET_IFP(sc); 514 ifp->if_softc = sc; 515 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 516 ifp->if_ioctl = cue_ioctl; 517 ifp->if_start = cue_start; 518 ifp->if_watchdog = cue_watchdog; 519 strlcpy(ifp->if_xname, sc->cue_dev.dv_xname, IFNAMSIZ); 520 521 /* Attach the interface. */ 522 if_attach(ifp); 523 ether_ifattach(ifp); 524 525 timeout_set(&sc->cue_stat_ch, cue_tick, sc); 526 527 splx(s); 528 } 529 530 int 531 cue_detach(struct device *self, int flags) 532 { 533 struct cue_softc *sc = (struct cue_softc *)self; 534 struct ifnet *ifp = GET_IFP(sc); 535 int s; 536 537 DPRINTFN(2,("%s: %s: enter\n", sc->cue_dev.dv_xname, __func__)); 538 539 if (timeout_initialized(&sc->cue_stat_ch)) 540 timeout_del(&sc->cue_stat_ch); 541 542 /* 543 * Remove any pending task. It cannot be executing because it run 544 * in the same thread as detach. 545 */ 546 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 547 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 548 549 s = splusb(); 550 551 if (ifp->if_flags & IFF_RUNNING) 552 cue_stop(sc); 553 554 if (ifp->if_softc != NULL) { 555 ether_ifdetach(ifp); 556 if_detach(ifp); 557 } 558 559 #ifdef DIAGNOSTIC 560 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 561 sc->cue_ep[CUE_ENDPT_RX] != NULL || 562 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 563 printf("%s: detach has active endpoints\n", 564 sc->cue_dev.dv_xname); 565 #endif 566 567 splx(s); 568 569 return (0); 570 } 571 572 /* 573 * Initialize an RX descriptor and attach an MBUF cluster. 574 */ 575 int 576 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 577 { 578 struct mbuf *m_new = NULL; 579 580 if (m == NULL) { 581 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 582 if (m_new == NULL) { 583 printf("%s: no memory for rx list " 584 "-- packet dropped!\n", sc->cue_dev.dv_xname); 585 return (ENOBUFS); 586 } 587 588 MCLGET(m_new, M_DONTWAIT); 589 if (!(m_new->m_flags & M_EXT)) { 590 printf("%s: no memory for rx list " 591 "-- packet dropped!\n", sc->cue_dev.dv_xname); 592 m_freem(m_new); 593 return (ENOBUFS); 594 } 595 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 596 } else { 597 m_new = m; 598 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 599 m_new->m_data = m_new->m_ext.ext_buf; 600 } 601 602 m_adj(m_new, ETHER_ALIGN); 603 c->cue_mbuf = m_new; 604 605 return (0); 606 } 607 608 int 609 cue_rx_list_init(struct cue_softc *sc) 610 { 611 struct cue_cdata *cd; 612 struct cue_chain *c; 613 int i; 614 615 cd = &sc->cue_cdata; 616 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 617 c = &cd->cue_rx_chain[i]; 618 c->cue_sc = sc; 619 c->cue_idx = i; 620 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 621 return (ENOBUFS); 622 if (c->cue_xfer == NULL) { 623 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 624 if (c->cue_xfer == NULL) 625 return (ENOBUFS); 626 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 627 if (c->cue_buf == NULL) { 628 usbd_free_xfer(c->cue_xfer); 629 return (ENOBUFS); 630 } 631 } 632 } 633 634 return (0); 635 } 636 637 int 638 cue_tx_list_init(struct cue_softc *sc) 639 { 640 struct cue_cdata *cd; 641 struct cue_chain *c; 642 int i; 643 644 cd = &sc->cue_cdata; 645 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 646 c = &cd->cue_tx_chain[i]; 647 c->cue_sc = sc; 648 c->cue_idx = i; 649 c->cue_mbuf = NULL; 650 if (c->cue_xfer == NULL) { 651 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 652 if (c->cue_xfer == NULL) 653 return (ENOBUFS); 654 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 655 if (c->cue_buf == NULL) { 656 usbd_free_xfer(c->cue_xfer); 657 return (ENOBUFS); 658 } 659 } 660 } 661 662 return (0); 663 } 664 665 /* 666 * A frame has been uploaded: pass the resulting mbuf chain up to 667 * the higher level protocols. 668 */ 669 void 670 cue_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 671 { 672 struct cue_chain *c = priv; 673 struct cue_softc *sc = c->cue_sc; 674 struct ifnet *ifp = GET_IFP(sc); 675 struct mbuf_list ml = MBUF_LIST_INITIALIZER(); 676 struct mbuf *m; 677 int total_len = 0; 678 u_int16_t len; 679 int s; 680 681 DPRINTFN(10,("%s: %s: enter status=%d\n", sc->cue_dev.dv_xname, 682 __func__, status)); 683 684 if (usbd_is_dying(sc->cue_udev)) 685 return; 686 687 if (!(ifp->if_flags & IFF_RUNNING)) 688 return; 689 690 if (status != USBD_NORMAL_COMPLETION) { 691 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 692 return; 693 sc->cue_rx_errs++; 694 if (usbd_ratecheck(&sc->cue_rx_notice)) { 695 printf("%s: %u usb errors on rx: %s\n", 696 sc->cue_dev.dv_xname, sc->cue_rx_errs, 697 usbd_errstr(status)); 698 sc->cue_rx_errs = 0; 699 } 700 if (status == USBD_STALLED) 701 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 702 goto done; 703 } 704 705 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 706 707 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 708 709 m = c->cue_mbuf; 710 len = UGETW(mtod(m, u_int8_t *)); 711 712 /* No errors; receive the packet. */ 713 total_len = len; 714 715 if (len < sizeof(struct ether_header)) { 716 ifp->if_ierrors++; 717 goto done; 718 } 719 720 m_adj(m, sizeof(u_int16_t)); 721 m->m_pkthdr.len = m->m_len = total_len; 722 ml_enqueue(&ml, m); 723 724 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 725 ifp->if_ierrors++; 726 goto done; 727 } 728 729 s = splnet(); 730 if_input(ifp, &ml); 731 splx(s); 732 733 done: 734 /* Setup new transfer. */ 735 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 736 c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 737 USBD_NO_TIMEOUT, cue_rxeof); 738 usbd_transfer(c->cue_xfer); 739 740 DPRINTFN(10,("%s: %s: start rx\n", sc->cue_dev.dv_xname, 741 __func__)); 742 } 743 744 /* 745 * A frame was downloaded to the chip. It's safe for us to clean up 746 * the list buffers. 747 */ 748 void 749 cue_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 750 { 751 struct cue_chain *c = priv; 752 struct cue_softc *sc = c->cue_sc; 753 struct ifnet *ifp = GET_IFP(sc); 754 int s; 755 756 if (usbd_is_dying(sc->cue_udev)) 757 return; 758 759 s = splnet(); 760 761 DPRINTFN(10,("%s: %s: enter status=%d\n", sc->cue_dev.dv_xname, 762 __func__, status)); 763 764 ifp->if_timer = 0; 765 ifq_clr_oactive(&ifp->if_snd); 766 767 if (status != USBD_NORMAL_COMPLETION) { 768 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 769 splx(s); 770 return; 771 } 772 ifp->if_oerrors++; 773 printf("%s: usb error on tx: %s\n", sc->cue_dev.dv_xname, 774 usbd_errstr(status)); 775 if (status == USBD_STALLED) 776 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 777 splx(s); 778 return; 779 } 780 781 ifp->if_opackets++; 782 783 m_freem(c->cue_mbuf); 784 c->cue_mbuf = NULL; 785 786 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 787 cue_start(ifp); 788 789 splx(s); 790 } 791 792 void 793 cue_tick(void *xsc) 794 { 795 struct cue_softc *sc = xsc; 796 797 if (sc == NULL) 798 return; 799 800 if (usbd_is_dying(sc->cue_udev)) 801 return; 802 803 DPRINTFN(2,("%s: %s: enter\n", sc->cue_dev.dv_xname, __func__)); 804 805 /* Perform statistics update in process context. */ 806 usb_add_task(sc->cue_udev, &sc->cue_tick_task); 807 } 808 809 void 810 cue_tick_task(void *xsc) 811 { 812 struct cue_softc *sc = xsc; 813 struct ifnet *ifp; 814 815 if (usbd_is_dying(sc->cue_udev)) 816 return; 817 818 DPRINTFN(2,("%s: %s: enter\n", sc->cue_dev.dv_xname, __func__)); 819 820 ifp = GET_IFP(sc); 821 822 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 823 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 824 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 825 826 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 827 ifp->if_ierrors++; 828 } 829 830 int 831 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 832 { 833 int total_len; 834 struct cue_chain *c; 835 usbd_status err; 836 837 c = &sc->cue_cdata.cue_tx_chain[idx]; 838 839 /* 840 * Copy the mbuf data into a contiguous buffer, leaving two 841 * bytes at the beginning to hold the frame length. 842 */ 843 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 844 c->cue_mbuf = m; 845 846 total_len = m->m_pkthdr.len + 2; 847 848 DPRINTFN(10,("%s: %s: total_len=%d\n", 849 sc->cue_dev.dv_xname, __func__, total_len)); 850 851 /* The first two bytes are the frame length */ 852 c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len; 853 c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 854 855 /* XXX 10000 */ 856 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], 857 c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof); 858 859 /* Transmit */ 860 err = usbd_transfer(c->cue_xfer); 861 if (err != USBD_IN_PROGRESS) { 862 printf("%s: cue_send error=%s\n", sc->cue_dev.dv_xname, 863 usbd_errstr(err)); 864 /* Stop the interface from process context. */ 865 usb_add_task(sc->cue_udev, &sc->cue_stop_task); 866 return (EIO); 867 } 868 869 sc->cue_cdata.cue_tx_cnt++; 870 871 return (0); 872 } 873 874 void 875 cue_start(struct ifnet *ifp) 876 { 877 struct cue_softc *sc = ifp->if_softc; 878 struct mbuf *m_head = NULL; 879 880 if (usbd_is_dying(sc->cue_udev)) 881 return; 882 883 DPRINTFN(10,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 884 885 if (ifq_is_oactive(&ifp->if_snd)) 886 return; 887 888 m_head = ifq_deq_begin(&ifp->if_snd); 889 if (m_head == NULL) 890 return; 891 892 if (cue_send(sc, m_head, 0)) { 893 ifq_deq_rollback(&ifp->if_snd, m_head); 894 ifq_set_oactive(&ifp->if_snd); 895 return; 896 } 897 898 ifq_deq_commit(&ifp->if_snd, m_head); 899 900 #if NBPFILTER > 0 901 /* 902 * If there's a BPF listener, bounce a copy of this frame 903 * to him. 904 */ 905 if (ifp->if_bpf) 906 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); 907 #endif 908 909 ifq_set_oactive(&ifp->if_snd); 910 911 /* 912 * Set a timeout in case the chip goes out to lunch. 913 */ 914 ifp->if_timer = 5; 915 } 916 917 void 918 cue_init(void *xsc) 919 { 920 struct cue_softc *sc = xsc; 921 struct ifnet *ifp = GET_IFP(sc); 922 int i, s, ctl; 923 u_char *eaddr; 924 925 if (usbd_is_dying(sc->cue_udev)) 926 return; 927 928 DPRINTFN(10,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 929 930 if (ifp->if_flags & IFF_RUNNING) 931 return; 932 933 s = splnet(); 934 935 /* 936 * Cancel pending I/O and free all RX/TX buffers. 937 */ 938 #if 1 939 cue_reset(sc); 940 #endif 941 942 /* Set advanced operation modes. */ 943 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 944 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 945 946 eaddr = sc->arpcom.ac_enaddr; 947 /* Set MAC address */ 948 for (i = 0; i < ETHER_ADDR_LEN; i++) 949 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 950 951 /* Enable RX logic. */ 952 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 953 if (ifp->if_flags & IFF_PROMISC) 954 ctl |= CUE_ETHCTL_PROMISC; 955 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 956 957 /* Init TX ring. */ 958 if (cue_tx_list_init(sc) == ENOBUFS) { 959 printf("%s: tx list init failed\n", sc->cue_dev.dv_xname); 960 splx(s); 961 return; 962 } 963 964 /* Init RX ring. */ 965 if (cue_rx_list_init(sc) == ENOBUFS) { 966 printf("%s: rx list init failed\n", sc->cue_dev.dv_xname); 967 splx(s); 968 return; 969 } 970 971 /* Load the multicast filter. */ 972 cue_setmulti(sc); 973 974 /* 975 * Set the number of RX and TX buffers that we want 976 * to reserve inside the ASIC. 977 */ 978 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 979 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 980 981 /* Set advanced operation modes. */ 982 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 983 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 984 985 /* Program the LED operation. */ 986 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 987 988 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 989 if (cue_open_pipes(sc)) { 990 splx(s); 991 return; 992 } 993 } 994 995 ifp->if_flags |= IFF_RUNNING; 996 ifq_clr_oactive(&ifp->if_snd); 997 998 splx(s); 999 1000 timeout_add_sec(&sc->cue_stat_ch, 1); 1001 } 1002 1003 int 1004 cue_open_pipes(struct cue_softc *sc) 1005 { 1006 struct cue_chain *c; 1007 usbd_status err; 1008 int i; 1009 1010 /* Open RX and TX pipes. */ 1011 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1012 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1013 if (err) { 1014 printf("%s: open rx pipe failed: %s\n", 1015 sc->cue_dev.dv_xname, usbd_errstr(err)); 1016 return (EIO); 1017 } 1018 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1019 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1020 if (err) { 1021 printf("%s: open tx pipe failed: %s\n", 1022 sc->cue_dev.dv_xname, usbd_errstr(err)); 1023 return (EIO); 1024 } 1025 1026 /* Start up the receive pipe. */ 1027 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1028 c = &sc->cue_cdata.cue_rx_chain[i]; 1029 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 1030 c, c->cue_buf, CUE_BUFSZ, 1031 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1032 cue_rxeof); 1033 usbd_transfer(c->cue_xfer); 1034 } 1035 1036 return (0); 1037 } 1038 1039 int 1040 cue_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 1041 { 1042 struct cue_softc *sc = ifp->if_softc; 1043 int s, error = 0; 1044 1045 if (usbd_is_dying(sc->cue_udev)) 1046 return (EIO); 1047 1048 s = splnet(); 1049 1050 switch(command) { 1051 case SIOCSIFADDR: 1052 ifp->if_flags |= IFF_UP; 1053 cue_init(sc); 1054 break; 1055 1056 case SIOCSIFFLAGS: 1057 if (ifp->if_flags & IFF_UP) { 1058 if (ifp->if_flags & IFF_RUNNING && 1059 ifp->if_flags & IFF_PROMISC && 1060 !(sc->cue_if_flags & IFF_PROMISC)) { 1061 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1062 cue_setmulti(sc); 1063 } else if (ifp->if_flags & IFF_RUNNING && 1064 !(ifp->if_flags & IFF_PROMISC) && 1065 sc->cue_if_flags & IFF_PROMISC) { 1066 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1067 cue_setmulti(sc); 1068 } else if (!(ifp->if_flags & IFF_RUNNING)) 1069 cue_init(sc); 1070 } else { 1071 if (ifp->if_flags & IFF_RUNNING) 1072 cue_stop(sc); 1073 } 1074 sc->cue_if_flags = ifp->if_flags; 1075 error = 0; 1076 break; 1077 1078 default: 1079 error = ether_ioctl(ifp, &sc->arpcom, command, data); 1080 } 1081 1082 if (error == ENETRESET) { 1083 if (ifp->if_flags & IFF_RUNNING) 1084 cue_setmulti(sc); 1085 error = 0; 1086 } 1087 1088 splx(s); 1089 return (error); 1090 } 1091 1092 void 1093 cue_watchdog(struct ifnet *ifp) 1094 { 1095 struct cue_softc *sc = ifp->if_softc; 1096 struct cue_chain *c; 1097 usbd_status stat; 1098 int s; 1099 1100 DPRINTFN(5,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 1101 1102 if (usbd_is_dying(sc->cue_udev)) 1103 return; 1104 1105 ifp->if_oerrors++; 1106 printf("%s: watchdog timeout\n", sc->cue_dev.dv_xname); 1107 1108 s = splusb(); 1109 c = &sc->cue_cdata.cue_tx_chain[0]; 1110 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1111 cue_txeof(c->cue_xfer, c, stat); 1112 1113 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1114 cue_start(ifp); 1115 splx(s); 1116 } 1117 1118 /* 1119 * Stop the adapter and free any mbufs allocated to the 1120 * RX and TX lists. 1121 */ 1122 void 1123 cue_stop(struct cue_softc *sc) 1124 { 1125 usbd_status err; 1126 struct ifnet *ifp; 1127 int i; 1128 1129 DPRINTFN(10,("%s: %s: enter\n", sc->cue_dev.dv_xname,__func__)); 1130 1131 ifp = GET_IFP(sc); 1132 ifp->if_timer = 0; 1133 ifp->if_flags &= ~IFF_RUNNING; 1134 ifq_clr_oactive(&ifp->if_snd); 1135 1136 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1137 cue_reset(sc); 1138 timeout_del(&sc->cue_stat_ch); 1139 1140 /* Stop transfers. */ 1141 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1142 usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1143 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1144 if (err) { 1145 printf("%s: close rx pipe failed: %s\n", 1146 sc->cue_dev.dv_xname, usbd_errstr(err)); 1147 } 1148 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1149 } 1150 1151 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1152 usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1153 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1154 if (err) { 1155 printf("%s: close tx pipe failed: %s\n", 1156 sc->cue_dev.dv_xname, usbd_errstr(err)); 1157 } 1158 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1159 } 1160 1161 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1162 usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1163 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1164 if (err) { 1165 printf("%s: close intr pipe failed: %s\n", 1166 sc->cue_dev.dv_xname, usbd_errstr(err)); 1167 } 1168 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1169 } 1170 1171 /* Free RX resources. */ 1172 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1173 if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) { 1174 m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf); 1175 sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL; 1176 } 1177 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1178 usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1179 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1180 } 1181 } 1182 1183 /* Free TX resources. */ 1184 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1185 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1186 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1187 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1188 } 1189 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1190 usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1191 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1192 } 1193 } 1194 } 1195