1 /* $NetBSD: if_upl.c,v 1.24 2006/09/07 02:40:33 dogcow Exp $ */ 2 /* 3 * Copyright (c) 2000 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Lennart Augustsson (lennart@augustsson.net) at 8 * Carlstedt Research & Technology. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Prolific PL2301/PL2302 driver 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: if_upl.c,v 1.24 2006/09/07 02:40:33 dogcow Exp $"); 45 46 #include "opt_inet.h" 47 #include "bpfilter.h" 48 #include "rnd.h" 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/callout.h> 53 #include <sys/sockio.h> 54 #include <sys/mbuf.h> 55 #include <sys/malloc.h> 56 #include <sys/kernel.h> 57 #include <sys/socket.h> 58 59 #include <sys/device.h> 60 #if NRND > 0 61 #include <sys/rnd.h> 62 #endif 63 64 #include <net/if.h> 65 #include <net/if_types.h> 66 #include <net/if_dl.h> 67 #include <net/netisr.h> 68 69 #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m)) 70 71 #if NBPFILTER > 0 72 #include <net/bpf.h> 73 #endif 74 75 #ifdef INET 76 #include <netinet/in.h> 77 #include <netinet/in_var.h> 78 #include <netinet/if_inarp.h> 79 #endif 80 81 82 #include <dev/usb/usb.h> 83 #include <dev/usb/usbdi.h> 84 #include <dev/usb/usbdi_util.h> 85 #include <dev/usb/usbdevs.h> 86 87 /* 88 * 7 6 5 4 3 2 1 0 89 * tx rx 1 0 90 * 1110 0000 rxdata 91 * 1010 0000 idle 92 * 0010 0000 tx over 93 * 0110 tx over + rxd 94 */ 95 96 #define UPL_RXDATA 0x40 97 #define UPL_TXOK 0x80 98 99 #define UPL_INTR_PKTLEN 1 100 101 #define UPL_CONFIG_NO 1 102 #define UPL_IFACE_IDX 0 103 104 /***/ 105 106 #define UPL_INTR_INTERVAL 20 107 108 #define UPL_BUFSZ 1024 109 110 #define UPL_RX_FRAMES 1 111 #define UPL_TX_FRAMES 1 112 113 #define UPL_RX_LIST_CNT 1 114 #define UPL_TX_LIST_CNT 1 115 116 #define UPL_ENDPT_RX 0x0 117 #define UPL_ENDPT_TX 0x1 118 #define UPL_ENDPT_INTR 0x2 119 #define UPL_ENDPT_MAX 0x3 120 121 struct upl_type { 122 u_int16_t upl_vid; 123 u_int16_t upl_did; 124 }; 125 126 struct upl_softc; 127 128 struct upl_chain { 129 struct upl_softc *upl_sc; 130 usbd_xfer_handle upl_xfer; 131 char *upl_buf; 132 struct mbuf *upl_mbuf; 133 int upl_idx; 134 }; 135 136 struct upl_cdata { 137 struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT]; 138 struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT]; 139 int upl_tx_prod; 140 int upl_tx_cons; 141 int upl_tx_cnt; 142 int upl_rx_prod; 143 }; 144 145 struct upl_softc { 146 USBBASEDEVICE sc_dev; 147 148 struct ifnet sc_if; 149 #if NRND > 0 150 rndsource_element_t sc_rnd_source; 151 #endif 152 153 usb_callout_t sc_stat_ch; 154 155 usbd_device_handle sc_udev; 156 usbd_interface_handle sc_iface; 157 u_int16_t sc_vendor; 158 u_int16_t sc_product; 159 int sc_ed[UPL_ENDPT_MAX]; 160 usbd_pipe_handle sc_ep[UPL_ENDPT_MAX]; 161 struct upl_cdata sc_cdata; 162 163 uByte sc_ibuf; 164 165 char sc_dying; 166 char sc_attached; 167 u_int sc_rx_errs; 168 struct timeval sc_rx_notice; 169 u_int sc_intr_errs; 170 }; 171 172 #ifdef UPL_DEBUG 173 #define DPRINTF(x) if (upldebug) logprintf x 174 #define DPRINTFN(n,x) if (upldebug >= (n)) logprintf x 175 int upldebug = 0; 176 #else 177 #define DPRINTF(x) 178 #define DPRINTFN(n,x) 179 #endif 180 181 /* 182 * Various supported device vendors/products. 183 */ 184 Static struct upl_type sc_devs[] = { 185 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 }, 186 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 }, 187 { 0, 0 } 188 }; 189 190 USB_DECLARE_DRIVER(upl); 191 192 Static int upl_openpipes(struct upl_softc *); 193 Static int upl_tx_list_init(struct upl_softc *); 194 Static int upl_rx_list_init(struct upl_softc *); 195 Static int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *); 196 Static int upl_send(struct upl_softc *, struct mbuf *, int); 197 Static void upl_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 198 Static void upl_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 199 Static void upl_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 200 Static void upl_start(struct ifnet *); 201 Static int upl_ioctl(struct ifnet *, u_long, caddr_t); 202 Static void upl_init(void *); 203 Static void upl_stop(struct upl_softc *); 204 Static void upl_watchdog(struct ifnet *); 205 206 Static int upl_output(struct ifnet *, struct mbuf *, struct sockaddr *, 207 struct rtentry *); 208 Static void upl_input(struct ifnet *, struct mbuf *); 209 210 /* 211 * Probe for a Prolific chip. 212 */ 213 USB_MATCH(upl) 214 { 215 USB_MATCH_START(upl, uaa); 216 struct upl_type *t; 217 218 if (uaa->iface != NULL) 219 return (UMATCH_NONE); 220 221 for (t = sc_devs; t->upl_vid != 0; t++) 222 if (uaa->vendor == t->upl_vid && uaa->product == t->upl_did) 223 return (UMATCH_VENDOR_PRODUCT); 224 225 return (UMATCH_NONE); 226 } 227 228 USB_ATTACH(upl) 229 { 230 USB_ATTACH_START(upl, sc, uaa); 231 char *devinfop; 232 int s; 233 usbd_device_handle dev = uaa->device; 234 usbd_interface_handle iface; 235 usbd_status err; 236 struct ifnet *ifp; 237 usb_interface_descriptor_t *id; 238 usb_endpoint_descriptor_t *ed; 239 int i; 240 241 DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p", sc, dev)); 242 243 devinfop = usbd_devinfo_alloc(dev, 0); 244 USB_ATTACH_SETUP; 245 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop); 246 usbd_devinfo_free(devinfop); 247 248 err = usbd_set_config_no(dev, UPL_CONFIG_NO, 1); 249 if (err) { 250 printf("%s: setting config no failed\n", 251 USBDEVNAME(sc->sc_dev)); 252 USB_ATTACH_ERROR_RETURN; 253 } 254 255 sc->sc_udev = dev; 256 sc->sc_product = uaa->product; 257 sc->sc_vendor = uaa->vendor; 258 259 err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface); 260 if (err) { 261 printf("%s: getting interface handle failed\n", 262 USBDEVNAME(sc->sc_dev)); 263 USB_ATTACH_ERROR_RETURN; 264 } 265 266 sc->sc_iface = iface; 267 id = usbd_get_interface_descriptor(iface); 268 269 /* Find endpoints. */ 270 for (i = 0; i < id->bNumEndpoints; i++) { 271 ed = usbd_interface2endpoint_descriptor(iface, i); 272 if (ed == NULL) { 273 printf("%s: couldn't get ep %d\n", 274 USBDEVNAME(sc->sc_dev), i); 275 USB_ATTACH_ERROR_RETURN; 276 } 277 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 278 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 279 sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress; 280 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 281 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 282 sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress; 283 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 284 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 285 sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress; 286 } 287 } 288 289 if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 || 290 sc->sc_ed[UPL_ENDPT_INTR] == 0) { 291 printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev)); 292 USB_ATTACH_ERROR_RETURN; 293 } 294 295 s = splnet(); 296 297 /* Initialize interface info.*/ 298 ifp = &sc->sc_if; 299 ifp->if_softc = sc; 300 ifp->if_mtu = UPL_BUFSZ; 301 ifp->if_flags = IFF_POINTOPOINT | IFF_NOARP | IFF_SIMPLEX; 302 ifp->if_ioctl = upl_ioctl; 303 ifp->if_start = upl_start; 304 ifp->if_watchdog = upl_watchdog; 305 strncpy(ifp->if_xname, USBDEVNAME(sc->sc_dev), IFNAMSIZ); 306 307 ifp->if_type = IFT_OTHER; 308 ifp->if_addrlen = 0; 309 ifp->if_hdrlen = 0; 310 ifp->if_output = upl_output; 311 ifp->if_input = upl_input; 312 ifp->if_baudrate = 12000000; 313 ifp->if_dlt = DLT_RAW; 314 IFQ_SET_READY(&ifp->if_snd); 315 316 /* Attach the interface. */ 317 if_attach(ifp); 318 if_alloc_sadl(ifp); 319 320 #if NBPFILTER > 0 321 bpfattach(ifp, DLT_RAW, 0); 322 #endif 323 #if NRND > 0 324 rnd_attach_source(&sc->sc_rnd_source, USBDEVNAME(sc->sc_dev), 325 RND_TYPE_NET, 0); 326 #endif 327 328 sc->sc_attached = 1; 329 splx(s); 330 331 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 332 USBDEV(sc->sc_dev)); 333 334 USB_ATTACH_SUCCESS_RETURN; 335 } 336 337 USB_DETACH(upl) 338 { 339 USB_DETACH_START(upl, sc); 340 struct ifnet *ifp = &sc->sc_if; 341 int s; 342 343 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); 344 345 s = splusb(); 346 347 if (!sc->sc_attached) { 348 /* Detached before attached finished, so just bail out. */ 349 splx(s); 350 return (0); 351 } 352 353 if (ifp->if_flags & IFF_RUNNING) 354 upl_stop(sc); 355 356 #if NRND > 0 357 rnd_detach_source(&sc->sc_rnd_source); 358 #endif 359 #if NBPFILTER > 0 360 bpfdetach(ifp); 361 #endif 362 363 if_detach(ifp); 364 365 #ifdef DIAGNOSTIC 366 if (sc->sc_ep[UPL_ENDPT_TX] != NULL || 367 sc->sc_ep[UPL_ENDPT_RX] != NULL || 368 sc->sc_ep[UPL_ENDPT_INTR] != NULL) 369 printf("%s: detach has active endpoints\n", 370 USBDEVNAME(sc->sc_dev)); 371 #endif 372 373 sc->sc_attached = 0; 374 splx(s); 375 376 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 377 USBDEV(sc->sc_dev)); 378 379 return (0); 380 } 381 382 int 383 upl_activate(device_ptr_t self, enum devact act) 384 { 385 struct upl_softc *sc = (struct upl_softc *)self; 386 387 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); 388 389 switch (act) { 390 case DVACT_ACTIVATE: 391 return (EOPNOTSUPP); 392 break; 393 394 case DVACT_DEACTIVATE: 395 /* Deactivate the interface. */ 396 if_deactivate(&sc->sc_if); 397 sc->sc_dying = 1; 398 break; 399 } 400 return (0); 401 } 402 403 /* 404 * Initialize an RX descriptor and attach an MBUF cluster. 405 */ 406 Static int 407 upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m) 408 { 409 struct mbuf *m_new = NULL; 410 411 DPRINTFN(8,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); 412 413 if (m == NULL) { 414 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 415 if (m_new == NULL) { 416 printf("%s: no memory for rx list " 417 "-- packet dropped!\n", USBDEVNAME(sc->sc_dev)); 418 return (ENOBUFS); 419 } 420 421 MCLGET(m_new, M_DONTWAIT); 422 if (!(m_new->m_flags & M_EXT)) { 423 printf("%s: no memory for rx list " 424 "-- packet dropped!\n", USBDEVNAME(sc->sc_dev)); 425 m_freem(m_new); 426 return (ENOBUFS); 427 } 428 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 429 } else { 430 m_new = m; 431 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 432 m_new->m_data = m_new->m_ext.ext_buf; 433 } 434 435 c->upl_mbuf = m_new; 436 437 return (0); 438 } 439 440 Static int 441 upl_rx_list_init(struct upl_softc *sc) 442 { 443 struct upl_cdata *cd; 444 struct upl_chain *c; 445 int i; 446 447 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); 448 449 cd = &sc->sc_cdata; 450 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 451 c = &cd->upl_rx_chain[i]; 452 c->upl_sc = sc; 453 c->upl_idx = i; 454 if (upl_newbuf(sc, c, NULL) == ENOBUFS) 455 return (ENOBUFS); 456 if (c->upl_xfer == NULL) { 457 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 458 if (c->upl_xfer == NULL) 459 return (ENOBUFS); 460 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 461 if (c->upl_buf == NULL) { 462 usbd_free_xfer(c->upl_xfer); 463 return (ENOBUFS); 464 } 465 } 466 } 467 468 return (0); 469 } 470 471 Static int 472 upl_tx_list_init(struct upl_softc *sc) 473 { 474 struct upl_cdata *cd; 475 struct upl_chain *c; 476 int i; 477 478 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); 479 480 cd = &sc->sc_cdata; 481 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 482 c = &cd->upl_tx_chain[i]; 483 c->upl_sc = sc; 484 c->upl_idx = i; 485 c->upl_mbuf = NULL; 486 if (c->upl_xfer == NULL) { 487 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 488 if (c->upl_xfer == NULL) 489 return (ENOBUFS); 490 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 491 if (c->upl_buf == NULL) { 492 usbd_free_xfer(c->upl_xfer); 493 return (ENOBUFS); 494 } 495 } 496 } 497 498 return (0); 499 } 500 501 /* 502 * A frame has been uploaded: pass the resulting mbuf chain up to 503 * the higher level protocols. 504 */ 505 Static void 506 upl_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 507 { 508 struct upl_chain *c = priv; 509 struct upl_softc *sc = c->upl_sc; 510 struct ifnet *ifp = &sc->sc_if; 511 struct mbuf *m; 512 int total_len = 0; 513 int s; 514 515 if (sc->sc_dying) 516 return; 517 518 if (!(ifp->if_flags & IFF_RUNNING)) 519 return; 520 521 if (status != USBD_NORMAL_COMPLETION) { 522 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 523 return; 524 sc->sc_rx_errs++; 525 if (usbd_ratecheck(&sc->sc_rx_notice)) { 526 printf("%s: %u usb errors on rx: %s\n", 527 USBDEVNAME(sc->sc_dev), sc->sc_rx_errs, 528 usbd_errstr(status)); 529 sc->sc_rx_errs = 0; 530 } 531 if (status == USBD_STALLED) 532 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); 533 goto done; 534 } 535 536 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 537 538 DPRINTFN(9,("%s: %s: enter status=%d length=%d\n", 539 USBDEVNAME(sc->sc_dev), __func__, status, total_len)); 540 541 m = c->upl_mbuf; 542 memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len); 543 544 ifp->if_ipackets++; 545 m->m_pkthdr.len = m->m_len = total_len; 546 547 m->m_pkthdr.rcvif = ifp; 548 549 s = splnet(); 550 551 /* XXX ugly */ 552 if (upl_newbuf(sc, c, NULL) == ENOBUFS) { 553 ifp->if_ierrors++; 554 goto done1; 555 } 556 557 #if NBPFILTER > 0 558 /* 559 * Handle BPF listeners. Let the BPF user see the packet, but 560 * don't pass it up to the ether_input() layer unless it's 561 * a broadcast packet, multicast packet, matches our ethernet 562 * address or the interface is in promiscuous mode. 563 */ 564 if (ifp->if_bpf) { 565 BPF_MTAP(ifp, m); 566 } 567 #endif 568 569 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->sc_dev), 570 __func__, m->m_len)); 571 572 IF_INPUT(ifp, m); 573 574 done1: 575 splx(s); 576 577 done: 578 #if 1 579 /* Setup new transfer. */ 580 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 581 c, c->upl_buf, UPL_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 582 USBD_NO_TIMEOUT, upl_rxeof); 583 usbd_transfer(c->upl_xfer); 584 585 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->sc_dev), 586 __func__)); 587 #endif 588 } 589 590 /* 591 * A frame was downloaded to the chip. It's safe for us to clean up 592 * the list buffers. 593 */ 594 Static void 595 upl_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 596 { 597 struct upl_chain *c = priv; 598 struct upl_softc *sc = c->upl_sc; 599 struct ifnet *ifp = &sc->sc_if; 600 int s; 601 602 if (sc->sc_dying) 603 return; 604 605 s = splnet(); 606 607 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->sc_dev), 608 __func__, status)); 609 610 ifp->if_timer = 0; 611 ifp->if_flags &= ~IFF_OACTIVE; 612 613 if (status != USBD_NORMAL_COMPLETION) { 614 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 615 splx(s); 616 return; 617 } 618 ifp->if_oerrors++; 619 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->sc_dev), 620 usbd_errstr(status)); 621 if (status == USBD_STALLED) 622 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_TX]); 623 splx(s); 624 return; 625 } 626 627 ifp->if_opackets++; 628 629 m_freem(c->upl_mbuf); 630 c->upl_mbuf = NULL; 631 632 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 633 upl_start(ifp); 634 635 splx(s); 636 } 637 638 Static int 639 upl_send(struct upl_softc *sc, struct mbuf *m, int idx) 640 { 641 int total_len; 642 struct upl_chain *c; 643 usbd_status err; 644 645 c = &sc->sc_cdata.upl_tx_chain[idx]; 646 647 /* 648 * Copy the mbuf data into a contiguous buffer, leaving two 649 * bytes at the beginning to hold the frame length. 650 */ 651 m_copydata(m, 0, m->m_pkthdr.len, c->upl_buf); 652 c->upl_mbuf = m; 653 654 total_len = m->m_pkthdr.len; 655 656 DPRINTFN(10,("%s: %s: total_len=%d\n", 657 USBDEVNAME(sc->sc_dev), __func__, total_len)); 658 659 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_TX], 660 c, c->upl_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 661 upl_txeof); 662 663 /* Transmit */ 664 err = usbd_transfer(c->upl_xfer); 665 if (err != USBD_IN_PROGRESS) { 666 printf("%s: upl_send error=%s\n", USBDEVNAME(sc->sc_dev), 667 usbd_errstr(err)); 668 upl_stop(sc); 669 return (EIO); 670 } 671 672 sc->sc_cdata.upl_tx_cnt++; 673 674 return (0); 675 } 676 677 Static void 678 upl_start(struct ifnet *ifp) 679 { 680 struct upl_softc *sc = ifp->if_softc; 681 struct mbuf *m_head = NULL; 682 683 if (sc->sc_dying) 684 return; 685 686 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); 687 688 if (ifp->if_flags & IFF_OACTIVE) 689 return; 690 691 IFQ_POLL(&ifp->if_snd, m_head); 692 if (m_head == NULL) 693 return; 694 695 if (upl_send(sc, m_head, 0)) { 696 ifp->if_flags |= IFF_OACTIVE; 697 return; 698 } 699 700 IFQ_DEQUEUE(&ifp->if_snd, m_head); 701 702 #if NBPFILTER > 0 703 /* 704 * If there's a BPF listener, bounce a copy of this frame 705 * to him. 706 */ 707 if (ifp->if_bpf) 708 BPF_MTAP(ifp, m_head); 709 #endif 710 711 ifp->if_flags |= IFF_OACTIVE; 712 713 /* 714 * Set a timeout in case the chip goes out to lunch. 715 */ 716 ifp->if_timer = 5; 717 } 718 719 Static void 720 upl_init(void *xsc) 721 { 722 struct upl_softc *sc = xsc; 723 struct ifnet *ifp = &sc->sc_if; 724 int s; 725 726 if (sc->sc_dying) 727 return; 728 729 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); 730 731 if (ifp->if_flags & IFF_RUNNING) 732 return; 733 734 s = splnet(); 735 736 /* Init TX ring. */ 737 if (upl_tx_list_init(sc) == ENOBUFS) { 738 printf("%s: tx list init failed\n", USBDEVNAME(sc->sc_dev)); 739 splx(s); 740 return; 741 } 742 743 /* Init RX ring. */ 744 if (upl_rx_list_init(sc) == ENOBUFS) { 745 printf("%s: rx list init failed\n", USBDEVNAME(sc->sc_dev)); 746 splx(s); 747 return; 748 } 749 750 if (sc->sc_ep[UPL_ENDPT_RX] == NULL) { 751 if (upl_openpipes(sc)) { 752 splx(s); 753 return; 754 } 755 } 756 757 ifp->if_flags |= IFF_RUNNING; 758 ifp->if_flags &= ~IFF_OACTIVE; 759 760 splx(s); 761 } 762 763 Static int 764 upl_openpipes(struct upl_softc *sc) 765 { 766 struct upl_chain *c; 767 usbd_status err; 768 int i; 769 770 /* Open RX and TX pipes. */ 771 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX], 772 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]); 773 if (err) { 774 printf("%s: open rx pipe failed: %s\n", 775 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 776 return (EIO); 777 } 778 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX], 779 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]); 780 if (err) { 781 printf("%s: open tx pipe failed: %s\n", 782 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 783 return (EIO); 784 } 785 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR], 786 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_INTR], sc, 787 &sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr, 788 UPL_INTR_INTERVAL); 789 if (err) { 790 printf("%s: open intr pipe failed: %s\n", 791 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 792 return (EIO); 793 } 794 795 796 #if 1 797 /* Start up the receive pipe. */ 798 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 799 c = &sc->sc_cdata.upl_rx_chain[i]; 800 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 801 c, c->upl_buf, UPL_BUFSZ, 802 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 803 upl_rxeof); 804 usbd_transfer(c->upl_xfer); 805 } 806 #endif 807 808 return (0); 809 } 810 811 Static void 812 upl_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 813 { 814 struct upl_softc *sc = priv; 815 struct ifnet *ifp = &sc->sc_if; 816 uByte stat; 817 818 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); 819 820 if (sc->sc_dying) 821 return; 822 823 if (!(ifp->if_flags & IFF_RUNNING)) 824 return; 825 826 if (status != USBD_NORMAL_COMPLETION) { 827 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 828 return; 829 } 830 sc->sc_intr_errs++; 831 if (usbd_ratecheck(&sc->sc_rx_notice)) { 832 printf("%s: %u usb errors on intr: %s\n", 833 USBDEVNAME(sc->sc_dev), sc->sc_rx_errs, 834 usbd_errstr(status)); 835 sc->sc_intr_errs = 0; 836 } 837 if (status == USBD_STALLED) 838 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); 839 return; 840 } 841 842 stat = sc->sc_ibuf; 843 844 if (stat == 0) 845 return; 846 847 DPRINTFN(10,("%s: %s: stat=0x%02x\n", USBDEVNAME(sc->sc_dev), 848 __func__, stat)); 849 850 } 851 852 Static int 853 upl_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 854 { 855 struct upl_softc *sc = ifp->if_softc; 856 struct ifaddr *ifa = (struct ifaddr *)data; 857 struct ifreq *ifr = (struct ifreq *)data; 858 int s, error = 0; 859 860 if (sc->sc_dying) 861 return (EIO); 862 863 DPRINTFN(5,("%s: %s: cmd=0x%08lx\n", 864 USBDEVNAME(sc->sc_dev), __func__, command)); 865 866 s = splnet(); 867 868 switch(command) { 869 case SIOCSIFADDR: 870 ifp->if_flags |= IFF_UP; 871 upl_init(sc); 872 873 switch (ifa->ifa_addr->sa_family) { 874 #ifdef INET 875 case AF_INET: 876 break; 877 #endif /* INET */ 878 } 879 break; 880 881 case SIOCSIFMTU: 882 if (ifr->ifr_mtu > UPL_BUFSZ) 883 error = EINVAL; 884 else 885 ifp->if_mtu = ifr->ifr_mtu; 886 break; 887 888 case SIOCSIFFLAGS: 889 if (ifp->if_flags & IFF_UP) { 890 if (!(ifp->if_flags & IFF_RUNNING)) 891 upl_init(sc); 892 } else { 893 if (ifp->if_flags & IFF_RUNNING) 894 upl_stop(sc); 895 } 896 error = 0; 897 break; 898 default: 899 error = EINVAL; 900 break; 901 } 902 903 splx(s); 904 905 return (error); 906 } 907 908 Static void 909 upl_watchdog(struct ifnet *ifp) 910 { 911 struct upl_softc *sc = ifp->if_softc; 912 913 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); 914 915 if (sc->sc_dying) 916 return; 917 918 ifp->if_oerrors++; 919 printf("%s: watchdog timeout\n", USBDEVNAME(sc->sc_dev)); 920 921 upl_stop(sc); 922 upl_init(sc); 923 924 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 925 upl_start(ifp); 926 } 927 928 /* 929 * Stop the adapter and free any mbufs allocated to the 930 * RX and TX lists. 931 */ 932 Static void 933 upl_stop(struct upl_softc *sc) 934 { 935 usbd_status err; 936 struct ifnet *ifp; 937 int i; 938 939 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); 940 941 ifp = &sc->sc_if; 942 ifp->if_timer = 0; 943 944 /* Stop transfers. */ 945 if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { 946 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_RX]); 947 if (err) { 948 printf("%s: abort rx pipe failed: %s\n", 949 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 950 } 951 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]); 952 if (err) { 953 printf("%s: close rx pipe failed: %s\n", 954 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 955 } 956 sc->sc_ep[UPL_ENDPT_RX] = NULL; 957 } 958 959 if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { 960 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_TX]); 961 if (err) { 962 printf("%s: abort tx pipe failed: %s\n", 963 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 964 } 965 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]); 966 if (err) { 967 printf("%s: close tx pipe failed: %s\n", 968 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 969 } 970 sc->sc_ep[UPL_ENDPT_TX] = NULL; 971 } 972 973 if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { 974 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_INTR]); 975 if (err) { 976 printf("%s: abort intr pipe failed: %s\n", 977 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 978 } 979 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]); 980 if (err) { 981 printf("%s: close intr pipe failed: %s\n", 982 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 983 } 984 sc->sc_ep[UPL_ENDPT_INTR] = NULL; 985 } 986 987 /* Free RX resources. */ 988 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 989 if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) { 990 m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf); 991 sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL; 992 } 993 if (sc->sc_cdata.upl_rx_chain[i].upl_xfer != NULL) { 994 usbd_free_xfer(sc->sc_cdata.upl_rx_chain[i].upl_xfer); 995 sc->sc_cdata.upl_rx_chain[i].upl_xfer = NULL; 996 } 997 } 998 999 /* Free TX resources. */ 1000 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 1001 if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) { 1002 m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf); 1003 sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL; 1004 } 1005 if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) { 1006 usbd_free_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer); 1007 sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL; 1008 } 1009 } 1010 1011 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1012 } 1013 1014 Static int 1015 upl_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, 1016 struct rtentry *rt0) 1017 { 1018 int s, len, error; 1019 ALTQ_DECL(struct altq_pktattr pktattr;) 1020 1021 DPRINTFN(10,("%s: %s: enter\n", 1022 USBDEVNAME(((struct upl_softc *)ifp->if_softc)->sc_dev), 1023 __func__)); 1024 1025 /* 1026 * if the queueing discipline needs packet classification, 1027 * do it now. 1028 */ 1029 IFQ_CLASSIFY(&ifp->if_snd, m, dst->sa_family, &pktattr); 1030 1031 len = m->m_pkthdr.len; 1032 s = splnet(); 1033 /* 1034 * Queue message on interface, and start output if interface 1035 * not yet active. 1036 */ 1037 IFQ_ENQUEUE(&ifp->if_snd, m, &pktattr, error); 1038 if (error) { 1039 /* mbuf is already freed */ 1040 splx(s); 1041 return (error); 1042 } 1043 ifp->if_obytes += len; 1044 if ((ifp->if_flags & IFF_OACTIVE) == 0) 1045 (*ifp->if_start)(ifp); 1046 splx(s); 1047 1048 return (0); 1049 } 1050 1051 Static void 1052 upl_input(struct ifnet *ifp, struct mbuf *m) 1053 { 1054 #ifdef INET 1055 struct ifqueue *inq; 1056 int s; 1057 1058 /* XXX Assume all traffic is IP */ 1059 1060 schednetisr(NETISR_IP); 1061 inq = &ipintrq; 1062 1063 s = splnet(); 1064 if (IF_QFULL(inq)) { 1065 IF_DROP(inq); 1066 splx(s); 1067 #if 0 1068 if (sc->sc_flags & SC_DEBUG) 1069 printf("%s: input queue full\n", ifp->if_xname); 1070 #endif 1071 ifp->if_iqdrops++; 1072 return; 1073 } 1074 IF_ENQUEUE(inq, m); 1075 splx(s); 1076 #endif 1077 ifp->if_ipackets++; 1078 ifp->if_ibytes += m->m_len; 1079 } 1080