if_upl.c revision 1.12
1 /* $NetBSD: if_upl.c,v 1.12 2001/01/21 02:22:27 augustss 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 (at) 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 "opt_inet.h" 44 #include "opt_ns.h" 45 #include "bpfilter.h" 46 #include "rnd.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/callout.h> 51 #include <sys/sockio.h> 52 #include <sys/mbuf.h> 53 #include <sys/malloc.h> 54 #include <sys/kernel.h> 55 #include <sys/socket.h> 56 57 #include <sys/device.h> 58 #if NRND > 0 59 #include <sys/rnd.h> 60 #endif 61 62 #include <net/if.h> 63 #include <net/if_types.h> 64 #include <net/if_dl.h> 65 #include <net/netisr.h> 66 67 #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m)) 68 69 #if NBPFILTER > 0 70 #include <net/bpf.h> 71 #endif 72 73 #ifdef INET 74 #include <netinet/in.h> 75 #include <netinet/in_var.h> 76 #include <netinet/if_inarp.h> 77 #else 78 #error upl without INET? 79 #endif 80 81 #ifdef NS 82 #include <netns/ns.h> 83 #include <netns/ns_if.h> 84 #endif 85 86 #include <dev/usb/usb.h> 87 #include <dev/usb/usbdi.h> 88 #include <dev/usb/usbdi_util.h> 89 #include <dev/usb/usbdevs.h> 90 91 /* 92 * 7 6 5 4 3 2 1 0 93 * tx rx 1 0 94 * 1110 0000 rxdata 95 * 1010 0000 idle 96 * 0010 0000 tx over 97 * 0110 tx over + rxd 98 */ 99 100 #define UPL_RXDATA 0x40 101 #define UPL_TXOK 0x80 102 103 #define UPL_INTR_PKTLEN 1 104 105 #define UPL_CONFIG_NO 1 106 #define UPL_IFACE_IDX 0 107 108 /***/ 109 110 #define UPL_INTR_INTERVAL 20 111 112 #define UPL_BUFSZ 1024 113 114 #define UPL_RX_FRAMES 1 115 #define UPL_TX_FRAMES 1 116 117 #define UPL_RX_LIST_CNT 1 118 #define UPL_TX_LIST_CNT 1 119 120 #define UPL_ENDPT_RX 0x0 121 #define UPL_ENDPT_TX 0x1 122 #define UPL_ENDPT_INTR 0x2 123 #define UPL_ENDPT_MAX 0x3 124 125 struct upl_type { 126 u_int16_t upl_vid; 127 u_int16_t upl_did; 128 }; 129 130 struct upl_softc; 131 132 struct upl_chain { 133 struct upl_softc *upl_sc; 134 usbd_xfer_handle upl_xfer; 135 char *upl_buf; 136 struct mbuf *upl_mbuf; 137 int upl_idx; 138 }; 139 140 struct upl_cdata { 141 struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT]; 142 struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT]; 143 int upl_tx_prod; 144 int upl_tx_cons; 145 int upl_tx_cnt; 146 int upl_rx_prod; 147 }; 148 149 struct upl_softc { 150 USBBASEDEVICE sc_dev; 151 152 struct ifnet sc_if; 153 #if NRND > 0 154 rndsource_element_t sc_rnd_source; 155 #endif 156 157 usb_callout_t sc_stat_ch; 158 159 usbd_device_handle sc_udev; 160 usbd_interface_handle sc_iface; 161 u_int16_t sc_vendor; 162 u_int16_t sc_product; 163 int sc_ed[UPL_ENDPT_MAX]; 164 usbd_pipe_handle sc_ep[UPL_ENDPT_MAX]; 165 struct upl_cdata sc_cdata; 166 167 uByte sc_ibuf; 168 169 char sc_dying; 170 char sc_attached; 171 u_int sc_rx_errs; 172 struct timeval sc_rx_notice; 173 u_int sc_intr_errs; 174 }; 175 176 #ifdef UPL_DEBUG 177 #define DPRINTF(x) if (upldebug) logprintf x 178 #define DPRINTFN(n,x) if (upldebug >= (n)) logprintf x 179 int upldebug = 0; 180 #else 181 #define DPRINTF(x) 182 #define DPRINTFN(n,x) 183 #endif 184 185 /* 186 * Various supported device vendors/products. 187 */ 188 Static struct upl_type sc_devs[] = { 189 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 }, 190 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 }, 191 { 0, 0 } 192 }; 193 194 USB_DECLARE_DRIVER(upl); 195 196 Static int upl_openpipes(struct upl_softc *); 197 Static int upl_tx_list_init(struct upl_softc *); 198 Static int upl_rx_list_init(struct upl_softc *); 199 Static int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *); 200 Static int upl_send(struct upl_softc *, struct mbuf *, int); 201 Static void upl_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 202 Static void upl_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 203 Static void upl_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 204 Static void upl_start(struct ifnet *); 205 Static int upl_ioctl(struct ifnet *, u_long, caddr_t); 206 Static void upl_init(void *); 207 Static void upl_stop(struct upl_softc *); 208 Static void upl_watchdog(struct ifnet *); 209 210 Static int upl_output(struct ifnet *, struct mbuf *, struct sockaddr *, 211 struct rtentry *); 212 Static void upl_input(struct ifnet *, struct mbuf *); 213 214 /* 215 * Probe for a Prolific chip. 216 */ 217 USB_MATCH(upl) 218 { 219 USB_MATCH_START(upl, uaa); 220 struct upl_type *t; 221 222 if (uaa->iface != NULL) 223 return (UMATCH_NONE); 224 225 for (t = sc_devs; t->upl_vid != 0; t++) 226 if (uaa->vendor == t->upl_vid && uaa->product == t->upl_did) 227 return (UMATCH_VENDOR_PRODUCT); 228 229 return (UMATCH_NONE); 230 } 231 232 USB_ATTACH(upl) 233 { 234 USB_ATTACH_START(upl, sc, uaa); 235 char devinfo[1024]; 236 int s; 237 usbd_device_handle dev = uaa->device; 238 usbd_interface_handle iface; 239 usbd_status err; 240 struct ifnet *ifp; 241 usb_interface_descriptor_t *id; 242 usb_endpoint_descriptor_t *ed; 243 int i; 244 245 DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p", sc, dev)); 246 247 usbd_devinfo(dev, 0, devinfo); 248 USB_ATTACH_SETUP; 249 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 250 251 err = usbd_set_config_no(dev, UPL_CONFIG_NO, 1); 252 if (err) { 253 printf("%s: setting config no failed\n", 254 USBDEVNAME(sc->sc_dev)); 255 USB_ATTACH_ERROR_RETURN; 256 } 257 258 sc->sc_udev = dev; 259 sc->sc_product = uaa->product; 260 sc->sc_vendor = uaa->vendor; 261 262 err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface); 263 if (err) { 264 printf("%s: getting interface handle failed\n", 265 USBDEVNAME(sc->sc_dev)); 266 USB_ATTACH_ERROR_RETURN; 267 } 268 269 sc->sc_iface = iface; 270 id = usbd_get_interface_descriptor(iface); 271 272 /* Find endpoints. */ 273 for (i = 0; i < id->bNumEndpoints; i++) { 274 ed = usbd_interface2endpoint_descriptor(iface, i); 275 if (ed == NULL) { 276 printf("%s: couldn't get ep %d\n", 277 USBDEVNAME(sc->sc_dev), i); 278 USB_ATTACH_ERROR_RETURN; 279 } 280 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 281 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 282 sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress; 283 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 284 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 285 sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress; 286 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 287 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 288 sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress; 289 } 290 } 291 292 if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 || 293 sc->sc_ed[UPL_ENDPT_INTR] == 0) { 294 printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev)); 295 USB_ATTACH_ERROR_RETURN; 296 } 297 298 s = splimp(); 299 300 /* Initialize interface info.*/ 301 ifp = &sc->sc_if; 302 ifp->if_softc = sc; 303 ifp->if_mtu = UPL_BUFSZ; 304 ifp->if_flags = IFF_POINTOPOINT | IFF_NOARP | IFF_SIMPLEX; 305 ifp->if_ioctl = upl_ioctl; 306 ifp->if_start = upl_start; 307 ifp->if_watchdog = upl_watchdog; 308 strncpy(ifp->if_xname, USBDEVNAME(sc->sc_dev), IFNAMSIZ); 309 310 ifp->if_type = IFT_OTHER; 311 ifp->if_addrlen = 0; 312 ifp->if_hdrlen = 0; 313 ifp->if_output = upl_output; 314 ifp->if_input = upl_input; 315 ifp->if_baudrate = 12000000; 316 ifp->if_dlt = DLT_RAW; 317 IFQ_SET_READY(ifp->if_snd); 318 319 /* Attach the interface. */ 320 if_attach(ifp); 321 if_alloc_sadl(ifp); 322 323 #if NBPFILTER > 0 324 bpfattach(ifp, DLT_RAW, 0); 325 #endif 326 #if NRND > 0 327 rnd_attach_source(&sc->sc_rnd_source, USBDEVNAME(sc->sc_dev), 328 RND_TYPE_NET, 0); 329 #endif 330 331 sc->sc_attached = 1; 332 splx(s); 333 334 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 335 USBDEV(sc->sc_dev)); 336 337 USB_ATTACH_SUCCESS_RETURN; 338 } 339 340 USB_DETACH(upl) 341 { 342 USB_DETACH_START(upl, sc); 343 struct ifnet *ifp = &sc->sc_if; 344 int s; 345 346 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__)); 347 348 s = splusb(); 349 350 if (!sc->sc_attached) { 351 /* Detached before attached finished, so just bail out. */ 352 splx(s); 353 return (0); 354 } 355 356 if (ifp->if_flags & IFF_RUNNING) 357 upl_stop(sc); 358 359 #if NRND > 0 360 rnd_detach_source(&sc->sc_rnd_source); 361 #endif 362 #if NBPFILTER > 0 363 bpfdetach(ifp); 364 #endif 365 366 if_detach(ifp); 367 368 #ifdef DIAGNOSTIC 369 if (sc->sc_ep[UPL_ENDPT_TX] != NULL || 370 sc->sc_ep[UPL_ENDPT_RX] != NULL || 371 sc->sc_ep[UPL_ENDPT_INTR] != NULL) 372 printf("%s: detach has active endpoints\n", 373 USBDEVNAME(sc->sc_dev)); 374 #endif 375 376 sc->sc_attached = 0; 377 splx(s); 378 379 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 380 USBDEV(sc->sc_dev)); 381 382 return (0); 383 } 384 385 int 386 upl_activate(device_ptr_t self, enum devact act) 387 { 388 struct upl_softc *sc = (struct upl_softc *)self; 389 390 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__)); 391 392 switch (act) { 393 case DVACT_ACTIVATE: 394 return (EOPNOTSUPP); 395 break; 396 397 case DVACT_DEACTIVATE: 398 /* Deactivate the interface. */ 399 if_deactivate(&sc->sc_if); 400 sc->sc_dying = 1; 401 break; 402 } 403 return (0); 404 } 405 406 /* 407 * Initialize an RX descriptor and attach an MBUF cluster. 408 */ 409 Static int 410 upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m) 411 { 412 struct mbuf *m_new = NULL; 413 414 DPRINTFN(8,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__)); 415 416 if (m == NULL) { 417 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 418 if (m_new == NULL) { 419 printf("%s: no memory for rx list " 420 "-- packet dropped!\n", USBDEVNAME(sc->sc_dev)); 421 return (ENOBUFS); 422 } 423 424 MCLGET(m_new, M_DONTWAIT); 425 if (!(m_new->m_flags & M_EXT)) { 426 printf("%s: no memory for rx list " 427 "-- packet dropped!\n", USBDEVNAME(sc->sc_dev)); 428 m_freem(m_new); 429 return (ENOBUFS); 430 } 431 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 432 } else { 433 m_new = m; 434 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 435 m_new->m_data = m_new->m_ext.ext_buf; 436 } 437 438 c->upl_mbuf = m_new; 439 440 return (0); 441 } 442 443 Static int 444 upl_rx_list_init(struct upl_softc *sc) 445 { 446 struct upl_cdata *cd; 447 struct upl_chain *c; 448 int i; 449 450 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__)); 451 452 cd = &sc->sc_cdata; 453 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 454 c = &cd->upl_rx_chain[i]; 455 c->upl_sc = sc; 456 c->upl_idx = i; 457 if (upl_newbuf(sc, c, NULL) == ENOBUFS) 458 return (ENOBUFS); 459 if (c->upl_xfer == NULL) { 460 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 461 if (c->upl_xfer == NULL) 462 return (ENOBUFS); 463 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 464 if (c->upl_buf == NULL) { 465 usbd_free_xfer(c->upl_xfer); 466 return (ENOBUFS); 467 } 468 } 469 } 470 471 return (0); 472 } 473 474 Static int 475 upl_tx_list_init(struct upl_softc *sc) 476 { 477 struct upl_cdata *cd; 478 struct upl_chain *c; 479 int i; 480 481 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __FUNCTION__)); 482 483 cd = &sc->sc_cdata; 484 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 485 c = &cd->upl_tx_chain[i]; 486 c->upl_sc = sc; 487 c->upl_idx = i; 488 c->upl_mbuf = NULL; 489 if (c->upl_xfer == NULL) { 490 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 491 if (c->upl_xfer == NULL) 492 return (ENOBUFS); 493 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 494 if (c->upl_buf == NULL) { 495 usbd_free_xfer(c->upl_xfer); 496 return (ENOBUFS); 497 } 498 } 499 } 500 501 return (0); 502 } 503 504 /* 505 * A frame has been uploaded: pass the resulting mbuf chain up to 506 * the higher level protocols. 507 */ 508 Static void 509 upl_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 510 { 511 struct upl_chain *c = priv; 512 struct upl_softc *sc = c->upl_sc; 513 struct ifnet *ifp = &sc->sc_if; 514 struct mbuf *m; 515 int total_len = 0; 516 int s; 517 518 if (sc->sc_dying) 519 return; 520 521 if (!(ifp->if_flags & IFF_RUNNING)) 522 return; 523 524 if (status != USBD_NORMAL_COMPLETION) { 525 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 526 return; 527 sc->sc_rx_errs++; 528 if (usbd_ratecheck(&sc->sc_rx_notice)) { 529 printf("%s: %u usb errors on rx: %s\n", 530 USBDEVNAME(sc->sc_dev), sc->sc_rx_errs, 531 usbd_errstr(status)); 532 sc->sc_rx_errs = 0; 533 } 534 if (status == USBD_STALLED) 535 usbd_clear_endpoint_stall(sc->sc_ep[UPL_ENDPT_RX]); 536 goto done; 537 } 538 539 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 540 541 DPRINTFN(9,("%s: %s: enter status=%d length=%d\n", 542 USBDEVNAME(sc->sc_dev), __FUNCTION__, status, total_len)); 543 544 m = c->upl_mbuf; 545 memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len); 546 547 ifp->if_ipackets++; 548 m->m_pkthdr.len = m->m_len = total_len; 549 550 m->m_pkthdr.rcvif = ifp; 551 552 s = splimp(); 553 554 /* XXX ugly */ 555 if (upl_newbuf(sc, c, NULL) == ENOBUFS) { 556 ifp->if_ierrors++; 557 goto done1; 558 } 559 560 #if NBPFILTER > 0 561 /* 562 * Handle BPF listeners. Let the BPF user see the packet, but 563 * don't pass it up to the ether_input() layer unless it's 564 * a broadcast packet, multicast packet, matches our ethernet 565 * address or the interface is in promiscuous mode. 566 */ 567 if (ifp->if_bpf) { 568 BPF_MTAP(ifp, m); 569 } 570 #endif 571 572 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->sc_dev), 573 __FUNCTION__, m->m_len)); 574 575 IF_INPUT(ifp, m); 576 577 done1: 578 splx(s); 579 580 done: 581 #if 1 582 /* Setup new transfer. */ 583 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 584 c, c->upl_buf, UPL_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 585 USBD_NO_TIMEOUT, upl_rxeof); 586 usbd_transfer(c->upl_xfer); 587 588 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->sc_dev), 589 __FUNCTION__)); 590 #endif 591 } 592 593 /* 594 * A frame was downloaded to the chip. It's safe for us to clean up 595 * the list buffers. 596 */ 597 Static void 598 upl_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 599 { 600 struct upl_chain *c = priv; 601 struct upl_softc *sc = c->upl_sc; 602 struct ifnet *ifp = &sc->sc_if; 603 int s; 604 605 if (sc->sc_dying) 606 return; 607 608 s = splimp(); 609 610 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->sc_dev), 611 __FUNCTION__, status)); 612 613 ifp->if_timer = 0; 614 ifp->if_flags &= ~IFF_OACTIVE; 615 616 if (status != USBD_NORMAL_COMPLETION) { 617 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 618 splx(s); 619 return; 620 } 621 ifp->if_oerrors++; 622 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->sc_dev), 623 usbd_errstr(status)); 624 if (status == USBD_STALLED) 625 usbd_clear_endpoint_stall(sc->sc_ep[UPL_ENDPT_TX]); 626 splx(s); 627 return; 628 } 629 630 ifp->if_opackets++; 631 632 m_freem(c->upl_mbuf); 633 c->upl_mbuf = NULL; 634 635 if (ifp->if_snd.ifq_head != NULL) 636 upl_start(ifp); 637 638 splx(s); 639 } 640 641 Static int 642 upl_send(struct upl_softc *sc, struct mbuf *m, int idx) 643 { 644 int total_len; 645 struct upl_chain *c; 646 usbd_status err; 647 648 c = &sc->sc_cdata.upl_tx_chain[idx]; 649 650 /* 651 * Copy the mbuf data into a contiguous buffer, leaving two 652 * bytes at the beginning to hold the frame length. 653 */ 654 m_copydata(m, 0, m->m_pkthdr.len, c->upl_buf); 655 c->upl_mbuf = m; 656 657 total_len = m->m_pkthdr.len; 658 659 DPRINTFN(10,("%s: %s: total_len=%d\n", 660 USBDEVNAME(sc->sc_dev), __FUNCTION__, total_len)); 661 662 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_TX], 663 c, c->upl_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 664 upl_txeof); 665 666 /* Transmit */ 667 err = usbd_transfer(c->upl_xfer); 668 if (err != USBD_IN_PROGRESS) { 669 printf("%s: upl_send error=%s\n", USBDEVNAME(sc->sc_dev), 670 usbd_errstr(err)); 671 upl_stop(sc); 672 return (EIO); 673 } 674 675 sc->sc_cdata.upl_tx_cnt++; 676 677 return (0); 678 } 679 680 Static void 681 upl_start(struct ifnet *ifp) 682 { 683 struct upl_softc *sc = ifp->if_softc; 684 struct mbuf *m_head = NULL; 685 686 if (sc->sc_dying) 687 return; 688 689 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__)); 690 691 if (ifp->if_flags & IFF_OACTIVE) 692 return; 693 694 IF_DEQUEUE(&ifp->if_snd, m_head); 695 if (m_head == NULL) 696 return; 697 698 if (upl_send(sc, m_head, 0)) { 699 IF_PREPEND(&ifp->if_snd, m_head); 700 ifp->if_flags |= IFF_OACTIVE; 701 return; 702 } 703 704 #if NBPFILTER > 0 705 /* 706 * If there's a BPF listener, bounce a copy of this frame 707 * to him. 708 */ 709 if (ifp->if_bpf) 710 BPF_MTAP(ifp, m_head); 711 #endif 712 713 ifp->if_flags |= IFF_OACTIVE; 714 715 /* 716 * Set a timeout in case the chip goes out to lunch. 717 */ 718 ifp->if_timer = 5; 719 } 720 721 Static void 722 upl_init(void *xsc) 723 { 724 struct upl_softc *sc = xsc; 725 struct ifnet *ifp = &sc->sc_if; 726 int s; 727 728 if (sc->sc_dying) 729 return; 730 731 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__)); 732 733 if (ifp->if_flags & IFF_RUNNING) 734 return; 735 736 s = splimp(); 737 738 /* Init TX ring. */ 739 if (upl_tx_list_init(sc) == ENOBUFS) { 740 printf("%s: tx list init failed\n", USBDEVNAME(sc->sc_dev)); 741 splx(s); 742 return; 743 } 744 745 /* Init RX ring. */ 746 if (upl_rx_list_init(sc) == ENOBUFS) { 747 printf("%s: rx list init failed\n", USBDEVNAME(sc->sc_dev)); 748 splx(s); 749 return; 750 } 751 752 if (sc->sc_ep[UPL_ENDPT_RX] == NULL) { 753 if (upl_openpipes(sc)) { 754 splx(s); 755 return; 756 } 757 } 758 759 ifp->if_flags |= IFF_RUNNING; 760 ifp->if_flags &= ~IFF_OACTIVE; 761 762 splx(s); 763 } 764 765 Static int 766 upl_openpipes(struct upl_softc *sc) 767 { 768 struct upl_chain *c; 769 usbd_status err; 770 int i; 771 772 /* Open RX and TX pipes. */ 773 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX], 774 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]); 775 if (err) { 776 printf("%s: open rx pipe failed: %s\n", 777 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 778 return (EIO); 779 } 780 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX], 781 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]); 782 if (err) { 783 printf("%s: open tx pipe failed: %s\n", 784 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 785 return (EIO); 786 } 787 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR], 788 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_INTR], sc, 789 &sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr, 790 UPL_INTR_INTERVAL); 791 if (err) { 792 printf("%s: open intr pipe failed: %s\n", 793 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 794 return (EIO); 795 } 796 797 798 #if 1 799 /* Start up the receive pipe. */ 800 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 801 c = &sc->sc_cdata.upl_rx_chain[i]; 802 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 803 c, c->upl_buf, UPL_BUFSZ, 804 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 805 upl_rxeof); 806 usbd_transfer(c->upl_xfer); 807 } 808 #endif 809 810 return (0); 811 } 812 813 Static void 814 upl_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 815 { 816 struct upl_softc *sc = priv; 817 struct ifnet *ifp = &sc->sc_if; 818 uByte stat; 819 820 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__)); 821 822 if (sc->sc_dying) 823 return; 824 825 if (!(ifp->if_flags & IFF_RUNNING)) 826 return; 827 828 if (status != USBD_NORMAL_COMPLETION) { 829 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 830 return; 831 } 832 sc->sc_intr_errs++; 833 if (usbd_ratecheck(&sc->sc_rx_notice)) { 834 printf("%s: %u usb errors on intr: %s\n", 835 USBDEVNAME(sc->sc_dev), sc->sc_rx_errs, 836 usbd_errstr(status)); 837 sc->sc_intr_errs = 0; 838 } 839 if (status == USBD_STALLED) 840 usbd_clear_endpoint_stall(sc->sc_ep[UPL_ENDPT_RX]); 841 return; 842 } 843 844 stat = sc->sc_ibuf; 845 846 if (stat == 0) 847 return; 848 849 DPRINTFN(10,("%s: %s: stat=0x%02x\n", USBDEVNAME(sc->sc_dev), 850 __FUNCTION__, stat)); 851 852 } 853 854 Static int 855 upl_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 856 { 857 struct upl_softc *sc = ifp->if_softc; 858 struct ifaddr *ifa = (struct ifaddr *)data; 859 struct ifreq *ifr = (struct ifreq *)data; 860 int s, error = 0; 861 862 if (sc->sc_dying) 863 return (EIO); 864 865 DPRINTFN(5,("%s: %s: cmd=0x%08lx\n", 866 USBDEVNAME(sc->sc_dev), __FUNCTION__, command)); 867 868 s = splimp(); 869 870 switch(command) { 871 case SIOCSIFADDR: 872 ifp->if_flags |= IFF_UP; 873 upl_init(sc); 874 875 switch (ifa->ifa_addr->sa_family) { 876 #ifdef INET 877 case AF_INET: 878 break; 879 #endif /* INET */ 880 #ifdef NS 881 case AF_NS: 882 { 883 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 884 885 if (ns_nullhost(*ina)) 886 ina->x_host = *(union ns_host *) 887 LLADDR(ifp->if_sadl); 888 else 889 memcpy(LLADDR(ifp->if_sadl), 890 ina->x_host.c_host, 891 ifp->if_addrlen); 892 break; 893 } 894 #endif /* NS */ 895 } 896 break; 897 898 case SIOCSIFMTU: 899 if (ifr->ifr_mtu > UPL_BUFSZ) 900 error = EINVAL; 901 else 902 ifp->if_mtu = ifr->ifr_mtu; 903 break; 904 905 case SIOCSIFFLAGS: 906 if (ifp->if_flags & IFF_UP) { 907 if (!(ifp->if_flags & IFF_RUNNING)) 908 upl_init(sc); 909 } else { 910 if (ifp->if_flags & IFF_RUNNING) 911 upl_stop(sc); 912 } 913 error = 0; 914 break; 915 default: 916 error = EINVAL; 917 break; 918 } 919 920 splx(s); 921 922 return (error); 923 } 924 925 Static void 926 upl_watchdog(struct ifnet *ifp) 927 { 928 struct upl_softc *sc = ifp->if_softc; 929 930 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__)); 931 932 if (sc->sc_dying) 933 return; 934 935 ifp->if_oerrors++; 936 printf("%s: watchdog timeout\n", USBDEVNAME(sc->sc_dev)); 937 938 upl_stop(sc); 939 upl_init(sc); 940 941 if (ifp->if_snd.ifq_head != NULL) 942 upl_start(ifp); 943 } 944 945 /* 946 * Stop the adapter and free any mbufs allocated to the 947 * RX and TX lists. 948 */ 949 Static void 950 upl_stop(struct upl_softc *sc) 951 { 952 usbd_status err; 953 struct ifnet *ifp; 954 int i; 955 956 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__FUNCTION__)); 957 958 ifp = &sc->sc_if; 959 ifp->if_timer = 0; 960 961 /* Stop transfers. */ 962 if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { 963 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_RX]); 964 if (err) { 965 printf("%s: abort rx pipe failed: %s\n", 966 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 967 } 968 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]); 969 if (err) { 970 printf("%s: close rx pipe failed: %s\n", 971 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 972 } 973 sc->sc_ep[UPL_ENDPT_RX] = NULL; 974 } 975 976 if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { 977 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_TX]); 978 if (err) { 979 printf("%s: abort tx pipe failed: %s\n", 980 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 981 } 982 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]); 983 if (err) { 984 printf("%s: close tx pipe failed: %s\n", 985 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 986 } 987 sc->sc_ep[UPL_ENDPT_TX] = NULL; 988 } 989 990 if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { 991 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_INTR]); 992 if (err) { 993 printf("%s: abort intr pipe failed: %s\n", 994 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 995 } 996 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]); 997 if (err) { 998 printf("%s: close intr pipe failed: %s\n", 999 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1000 } 1001 sc->sc_ep[UPL_ENDPT_INTR] = NULL; 1002 } 1003 1004 /* Free RX resources. */ 1005 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 1006 if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) { 1007 m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf); 1008 sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL; 1009 } 1010 if (sc->sc_cdata.upl_rx_chain[i].upl_xfer != NULL) { 1011 usbd_free_xfer(sc->sc_cdata.upl_rx_chain[i].upl_xfer); 1012 sc->sc_cdata.upl_rx_chain[i].upl_xfer = NULL; 1013 } 1014 } 1015 1016 /* Free TX resources. */ 1017 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 1018 if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) { 1019 m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf); 1020 sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL; 1021 } 1022 if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) { 1023 usbd_free_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer); 1024 sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL; 1025 } 1026 } 1027 1028 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1029 } 1030 1031 Static int 1032 upl_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, 1033 struct rtentry *rt0) 1034 { 1035 int s; 1036 1037 DPRINTFN(10,("%s: %s: enter\n", 1038 USBDEVNAME(((struct upl_softc *)ifp->if_softc)->sc_dev), 1039 __FUNCTION__)); 1040 1041 s = splimp(); 1042 /* 1043 * Queue message on interface, and start output if interface 1044 * not yet active. 1045 */ 1046 if (IF_QFULL(&ifp->if_snd)) { 1047 IF_DROP(&ifp->if_snd); 1048 splx(s); 1049 return (ENOBUFS); 1050 } 1051 ifp->if_obytes += m->m_pkthdr.len; 1052 IF_ENQUEUE(&ifp->if_snd, m); 1053 if ((ifp->if_flags & IFF_OACTIVE) == 0) 1054 (*ifp->if_start)(ifp); 1055 splx(s); 1056 1057 return (0); 1058 } 1059 1060 Static void 1061 upl_input(struct ifnet *ifp, struct mbuf *m) 1062 { 1063 struct ifqueue *inq; 1064 int s; 1065 1066 /* XXX Assume all traffic is IP */ 1067 1068 schednetisr(NETISR_IP); 1069 inq = &ipintrq; 1070 1071 s = splimp(); 1072 if (IF_QFULL(inq)) { 1073 IF_DROP(inq); 1074 splx(s); 1075 #if 0 1076 if (sc->sc_flags & SC_DEBUG) 1077 printf("%s: input queue full\n", ifp->if_xname); 1078 #endif 1079 ifp->if_iqdrops++; 1080 return; 1081 } 1082 IF_ENQUEUE(inq, m); 1083 splx(s); 1084 ifp->if_ipackets++; 1085 ifp->if_ibytes += m->m_len; 1086 ifp->if_lastchange = time; 1087 } 1088
Indexes created Mon Sep 29 21:09:56 GMT 2025