1 /* $OpenBSD: if_upl.c,v 1.80 2024/05/23 03:21:09 jsg Exp $ */ 2 /* $NetBSD: if_upl.c,v 1.19 2002/07/11 21:14:26 augustss Exp $ */ 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Prolific PL2301/PL2302 driver 35 */ 36 37 #include "bpfilter.h" 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/timeout.h> 42 #include <sys/sockio.h> 43 #include <sys/mbuf.h> 44 45 #include <sys/device.h> 46 47 #include <net/if.h> 48 #include <net/if_types.h> 49 50 #if NBPFILTER > 0 51 #include <net/bpf.h> 52 #endif 53 54 #include <netinet/in.h> 55 #include <netinet/if_ether.h> 56 57 #include <dev/usb/usb.h> 58 #include <dev/usb/usbdi.h> 59 #include <dev/usb/usbdevs.h> 60 61 /* 62 * 7 6 5 4 3 2 1 0 63 * tx rx 1 0 64 * 1110 0000 rxdata 65 * 1010 0000 idle 66 * 0010 0000 tx over 67 * 0110 tx over + rxd 68 */ 69 70 #define UPL_RXDATA 0x40 71 #define UPL_TXOK 0x80 72 73 #define UPL_INTR_PKTLEN 1 74 75 #define UPL_CONFIG_NO 1 76 #define UPL_IFACE_IDX 0 77 78 /***/ 79 80 #define UPL_INTR_INTERVAL 20 81 82 #define UPL_BUFSZ 1024 83 84 #define UPL_RX_FRAMES 1 85 #define UPL_TX_FRAMES 1 86 87 #define UPL_RX_LIST_CNT 1 88 #define UPL_TX_LIST_CNT 1 89 90 #define UPL_ENDPT_RX 0x0 91 #define UPL_ENDPT_TX 0x1 92 #define UPL_ENDPT_INTR 0x2 93 #define UPL_ENDPT_MAX 0x3 94 95 struct upl_softc; 96 97 struct upl_chain { 98 struct upl_softc *upl_sc; 99 struct usbd_xfer *upl_xfer; 100 char *upl_buf; 101 struct mbuf *upl_mbuf; 102 int upl_idx; 103 }; 104 105 struct upl_cdata { 106 struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT]; 107 struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT]; 108 int upl_tx_prod; 109 int upl_tx_cons; 110 int upl_tx_cnt; 111 int upl_rx_prod; 112 }; 113 114 struct upl_softc { 115 struct device sc_dev; 116 117 struct ifnet sc_if; 118 struct timeout sc_stat_ch; 119 120 struct usbd_device *sc_udev; 121 struct usbd_interface *sc_iface; 122 int sc_ed[UPL_ENDPT_MAX]; 123 struct usbd_pipe *sc_ep[UPL_ENDPT_MAX]; 124 struct upl_cdata sc_cdata; 125 126 uByte sc_ibuf; 127 128 u_int sc_rx_errs; 129 struct timeval sc_rx_notice; 130 u_int sc_intr_errs; 131 }; 132 133 #ifdef UPL_DEBUG 134 #define DPRINTF(x) do { if (upldebug) printf x; } while (0) 135 #define DPRINTFN(n,x) do { if (upldebug >= (n)) printf x; } while (0) 136 int upldebug = 0; 137 #else 138 #define DPRINTF(x) 139 #define DPRINTFN(n,x) 140 #endif 141 142 /* 143 * Various supported device vendors/products. 144 */ 145 struct usb_devno upl_devs[] = { 146 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 }, 147 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 } 148 }; 149 150 int upl_match(struct device *, void *, void *); 151 void upl_attach(struct device *, struct device *, void *); 152 int upl_detach(struct device *, int); 153 154 struct cfdriver upl_cd = { 155 NULL, "upl", DV_IFNET 156 }; 157 158 const struct cfattach upl_ca = { 159 sizeof(struct upl_softc), upl_match, upl_attach, upl_detach 160 }; 161 162 int upl_openpipes(struct upl_softc *); 163 int upl_tx_list_init(struct upl_softc *); 164 int upl_rx_list_init(struct upl_softc *); 165 int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *); 166 int upl_send(struct upl_softc *, struct mbuf *, int); 167 void upl_intr(struct usbd_xfer *, void *, usbd_status); 168 void upl_rxeof(struct usbd_xfer *, void *, usbd_status); 169 void upl_txeof(struct usbd_xfer *, void *, usbd_status); 170 void upl_start(struct ifnet *); 171 int upl_ioctl(struct ifnet *, u_long, caddr_t); 172 void upl_init(void *); 173 void upl_stop(struct upl_softc *); 174 void upl_watchdog(struct ifnet *); 175 176 int upl_output(struct ifnet *, struct mbuf *, struct sockaddr *, 177 struct rtentry *); 178 179 /* 180 * Probe for a Prolific chip. 181 */ 182 int 183 upl_match(struct device *parent, void *match, void *aux) 184 { 185 struct usb_attach_arg *uaa = aux; 186 187 if (uaa->iface == NULL || uaa->configno != UPL_CONFIG_NO) 188 return (UMATCH_NONE); 189 190 return (usb_lookup(upl_devs, uaa->vendor, uaa->product) != NULL ? 191 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 192 } 193 194 void 195 upl_attach(struct device *parent, struct device *self, void *aux) 196 { 197 struct upl_softc *sc = (struct upl_softc *)self; 198 struct usb_attach_arg *uaa = aux; 199 int s; 200 struct usbd_device *dev = uaa->device; 201 struct usbd_interface *iface; 202 usbd_status err; 203 struct ifnet *ifp; 204 usb_interface_descriptor_t *id; 205 usb_endpoint_descriptor_t *ed; 206 int i; 207 208 DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p", sc, dev)); 209 210 sc->sc_udev = dev; 211 212 err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface); 213 if (err) { 214 printf("%s: getting interface handle failed\n", 215 sc->sc_dev.dv_xname); 216 return; 217 } 218 219 sc->sc_iface = iface; 220 id = usbd_get_interface_descriptor(iface); 221 222 /* Find endpoints. */ 223 for (i = 0; i < id->bNumEndpoints; i++) { 224 ed = usbd_interface2endpoint_descriptor(iface, i); 225 if (ed == NULL) { 226 printf("%s: couldn't get ep %d\n", 227 sc->sc_dev.dv_xname, i); 228 return; 229 } 230 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 231 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 232 sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress; 233 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 234 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 235 sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress; 236 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 237 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 238 sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress; 239 } 240 } 241 242 if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 || 243 sc->sc_ed[UPL_ENDPT_INTR] == 0) { 244 printf("%s: missing endpoint\n", sc->sc_dev.dv_xname); 245 return; 246 } 247 248 s = splnet(); 249 250 /* Initialize interface info.*/ 251 ifp = &sc->sc_if; 252 ifp->if_softc = sc; 253 ifp->if_mtu = UPL_BUFSZ; 254 ifp->if_hardmtu = UPL_BUFSZ; 255 ifp->if_flags = IFF_POINTOPOINT | IFF_SIMPLEX; 256 ifp->if_ioctl = upl_ioctl; 257 ifp->if_start = upl_start; 258 ifp->if_watchdog = upl_watchdog; 259 strlcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 260 261 ifp->if_type = IFT_OTHER; 262 ifp->if_addrlen = 0; 263 ifp->if_hdrlen = 0; 264 ifp->if_output = upl_output; 265 ifp->if_baudrate = IF_Mbps(12); 266 267 /* Attach the interface. */ 268 if_attach(ifp); 269 if_alloc_sadl(ifp); 270 271 splx(s); 272 } 273 274 int 275 upl_detach(struct device *self, int flags) 276 { 277 struct upl_softc *sc = (struct upl_softc *)self; 278 struct ifnet *ifp = &sc->sc_if; 279 int s; 280 281 DPRINTFN(2,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); 282 283 s = splusb(); 284 285 if (ifp->if_flags & IFF_RUNNING) 286 upl_stop(sc); 287 288 if (ifp->if_softc != NULL) 289 if_detach(ifp); 290 291 #ifdef DIAGNOSTIC 292 if (sc->sc_ep[UPL_ENDPT_TX] != NULL || 293 sc->sc_ep[UPL_ENDPT_RX] != NULL || 294 sc->sc_ep[UPL_ENDPT_INTR] != NULL) 295 printf("%s: detach has active endpoints\n", 296 sc->sc_dev.dv_xname); 297 #endif 298 299 splx(s); 300 301 return (0); 302 } 303 304 /* 305 * Initialize an RX descriptor and attach an MBUF cluster. 306 */ 307 int 308 upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m) 309 { 310 struct mbuf *m_new = NULL; 311 312 DPRINTFN(8,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); 313 314 if (m == NULL) { 315 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 316 if (m_new == NULL) { 317 printf("%s: no memory for rx list " 318 "-- packet dropped!\n", sc->sc_dev.dv_xname); 319 return (ENOBUFS); 320 } 321 322 MCLGET(m_new, M_DONTWAIT); 323 if (!(m_new->m_flags & M_EXT)) { 324 printf("%s: no memory for rx list " 325 "-- packet dropped!\n", sc->sc_dev.dv_xname); 326 m_freem(m_new); 327 return (ENOBUFS); 328 } 329 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 330 } else { 331 m_new = m; 332 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 333 m_new->m_data = m_new->m_ext.ext_buf; 334 } 335 336 c->upl_mbuf = m_new; 337 338 return (0); 339 } 340 341 int 342 upl_rx_list_init(struct upl_softc *sc) 343 { 344 struct upl_cdata *cd; 345 struct upl_chain *c; 346 int i; 347 348 DPRINTFN(5,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); 349 350 cd = &sc->sc_cdata; 351 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 352 c = &cd->upl_rx_chain[i]; 353 c->upl_sc = sc; 354 c->upl_idx = i; 355 if (upl_newbuf(sc, c, NULL) == ENOBUFS) 356 return (ENOBUFS); 357 if (c->upl_xfer == NULL) { 358 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 359 if (c->upl_xfer == NULL) 360 return (ENOBUFS); 361 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 362 if (c->upl_buf == NULL) { 363 usbd_free_xfer(c->upl_xfer); 364 return (ENOBUFS); 365 } 366 } 367 } 368 369 return (0); 370 } 371 372 int 373 upl_tx_list_init(struct upl_softc *sc) 374 { 375 struct upl_cdata *cd; 376 struct upl_chain *c; 377 int i; 378 379 DPRINTFN(5,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); 380 381 cd = &sc->sc_cdata; 382 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 383 c = &cd->upl_tx_chain[i]; 384 c->upl_sc = sc; 385 c->upl_idx = i; 386 c->upl_mbuf = NULL; 387 if (c->upl_xfer == NULL) { 388 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 389 if (c->upl_xfer == NULL) 390 return (ENOBUFS); 391 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 392 if (c->upl_buf == NULL) { 393 usbd_free_xfer(c->upl_xfer); 394 return (ENOBUFS); 395 } 396 } 397 } 398 399 return (0); 400 } 401 402 /* 403 * A frame has been uploaded: pass the resulting mbuf chain up to 404 * the higher level protocols. 405 */ 406 void 407 upl_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 408 { 409 struct upl_chain *c = priv; 410 struct upl_softc *sc = c->upl_sc; 411 struct ifnet *ifp = &sc->sc_if; 412 struct mbuf_list ml = MBUF_LIST_INITIALIZER(); 413 struct mbuf *m; 414 int total_len = 0; 415 int s; 416 417 if (usbd_is_dying(sc->sc_udev)) 418 return; 419 420 if (!(ifp->if_flags & IFF_RUNNING)) 421 return; 422 423 if (status != USBD_NORMAL_COMPLETION) { 424 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 425 return; 426 sc->sc_rx_errs++; 427 if (usbd_ratecheck(&sc->sc_rx_notice)) { 428 printf("%s: %u usb errors on rx: %s\n", 429 sc->sc_dev.dv_xname, sc->sc_rx_errs, 430 usbd_errstr(status)); 431 sc->sc_rx_errs = 0; 432 } 433 if (status == USBD_STALLED) 434 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); 435 goto done; 436 } 437 438 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 439 440 DPRINTFN(9,("%s: %s: enter status=%d length=%d\n", 441 sc->sc_dev.dv_xname, __func__, status, total_len)); 442 443 m = c->upl_mbuf; 444 memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len); 445 446 m->m_pkthdr.len = m->m_len = total_len; 447 ml_enqueue(&ml, m); 448 449 if (upl_newbuf(sc, c, NULL) == ENOBUFS) { 450 ifp->if_ierrors++; 451 goto done; 452 } 453 454 s = splnet(); 455 if_input(ifp, &ml); 456 splx(s); 457 done: 458 #if 1 459 /* Setup new transfer. */ 460 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 461 c, c->upl_buf, UPL_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 462 USBD_NO_TIMEOUT, upl_rxeof); 463 usbd_transfer(c->upl_xfer); 464 465 DPRINTFN(10,("%s: %s: start rx\n", sc->sc_dev.dv_xname, 466 __func__)); 467 #endif 468 } 469 470 /* 471 * A frame was downloaded to the chip. It's safe for us to clean up 472 * the list buffers. 473 */ 474 void 475 upl_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 476 { 477 struct upl_chain *c = priv; 478 struct upl_softc *sc = c->upl_sc; 479 struct ifnet *ifp = &sc->sc_if; 480 int s; 481 482 if (usbd_is_dying(sc->sc_udev)) 483 return; 484 485 s = splnet(); 486 487 DPRINTFN(10,("%s: %s: enter status=%d\n", sc->sc_dev.dv_xname, 488 __func__, status)); 489 490 ifp->if_timer = 0; 491 ifq_clr_oactive(&ifp->if_snd); 492 493 if (status != USBD_NORMAL_COMPLETION) { 494 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 495 splx(s); 496 return; 497 } 498 ifp->if_oerrors++; 499 printf("%s: usb error on tx: %s\n", sc->sc_dev.dv_xname, 500 usbd_errstr(status)); 501 if (status == USBD_STALLED) 502 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_TX]); 503 splx(s); 504 return; 505 } 506 507 m_freem(c->upl_mbuf); 508 c->upl_mbuf = NULL; 509 510 if (ifq_empty(&ifp->if_snd) == 0) 511 upl_start(ifp); 512 513 splx(s); 514 } 515 516 int 517 upl_send(struct upl_softc *sc, struct mbuf *m, int idx) 518 { 519 int total_len; 520 struct upl_chain *c; 521 usbd_status err; 522 523 c = &sc->sc_cdata.upl_tx_chain[idx]; 524 525 /* 526 * Copy the mbuf data into a contiguous buffer, leaving two 527 * bytes at the beginning to hold the frame length. 528 */ 529 m_copydata(m, 0, m->m_pkthdr.len, c->upl_buf); 530 c->upl_mbuf = m; 531 532 total_len = m->m_pkthdr.len; 533 534 DPRINTFN(10,("%s: %s: total_len=%d\n", 535 sc->sc_dev.dv_xname, __func__, total_len)); 536 537 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_TX], 538 c, c->upl_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 539 upl_txeof); 540 541 /* Transmit */ 542 err = usbd_transfer(c->upl_xfer); 543 if (err != USBD_IN_PROGRESS) { 544 printf("%s: upl_send error=%s\n", sc->sc_dev.dv_xname, 545 usbd_errstr(err)); 546 c->upl_mbuf = NULL; 547 upl_stop(sc); 548 return (EIO); 549 } 550 551 sc->sc_cdata.upl_tx_cnt++; 552 553 return (0); 554 } 555 556 void 557 upl_start(struct ifnet *ifp) 558 { 559 struct upl_softc *sc = ifp->if_softc; 560 struct mbuf *m_head = NULL; 561 562 if (usbd_is_dying(sc->sc_udev)) 563 return; 564 565 DPRINTFN(10,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); 566 567 if (ifq_is_oactive(&ifp->if_snd)) 568 return; 569 570 m_head = ifq_dequeue(&ifp->if_snd); 571 if (m_head == NULL) 572 return; 573 574 if (upl_send(sc, m_head, 0)) { 575 m_freem(m_head); 576 ifq_set_oactive(&ifp->if_snd); 577 return; 578 } 579 580 #if NBPFILTER > 0 581 /* 582 * If there's a BPF listener, bounce a copy of this frame 583 * to him. 584 */ 585 if (ifp->if_bpf) 586 bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); 587 #endif 588 589 ifq_set_oactive(&ifp->if_snd); 590 591 /* 592 * Set a timeout in case the chip goes out to lunch. 593 */ 594 ifp->if_timer = 5; 595 } 596 597 void 598 upl_init(void *xsc) 599 { 600 struct upl_softc *sc = xsc; 601 struct ifnet *ifp = &sc->sc_if; 602 int s; 603 604 if (usbd_is_dying(sc->sc_udev)) 605 return; 606 607 DPRINTFN(10,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); 608 609 s = splnet(); 610 611 /* Init TX ring. */ 612 if (upl_tx_list_init(sc) == ENOBUFS) { 613 printf("%s: tx list init failed\n", sc->sc_dev.dv_xname); 614 splx(s); 615 return; 616 } 617 618 /* Init RX ring. */ 619 if (upl_rx_list_init(sc) == ENOBUFS) { 620 printf("%s: rx list init failed\n", sc->sc_dev.dv_xname); 621 splx(s); 622 return; 623 } 624 625 if (sc->sc_ep[UPL_ENDPT_RX] == NULL) { 626 if (upl_openpipes(sc)) { 627 splx(s); 628 return; 629 } 630 } 631 632 ifp->if_flags |= IFF_RUNNING; 633 ifq_clr_oactive(&ifp->if_snd); 634 635 splx(s); 636 } 637 638 int 639 upl_openpipes(struct upl_softc *sc) 640 { 641 struct upl_chain *c; 642 usbd_status err; 643 int i; 644 645 /* Open RX and TX pipes. */ 646 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX], 647 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]); 648 if (err) { 649 printf("%s: open rx pipe failed: %s\n", 650 sc->sc_dev.dv_xname, usbd_errstr(err)); 651 return (EIO); 652 } 653 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX], 654 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]); 655 if (err) { 656 printf("%s: open tx pipe failed: %s\n", 657 sc->sc_dev.dv_xname, usbd_errstr(err)); 658 return (EIO); 659 } 660 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR], 661 0, &sc->sc_ep[UPL_ENDPT_INTR], sc, 662 &sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr, 663 UPL_INTR_INTERVAL); 664 if (err) { 665 printf("%s: open intr pipe failed: %s\n", 666 sc->sc_dev.dv_xname, usbd_errstr(err)); 667 return (EIO); 668 } 669 670 671 #if 1 672 /* Start up the receive pipe. */ 673 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 674 c = &sc->sc_cdata.upl_rx_chain[i]; 675 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 676 c, c->upl_buf, UPL_BUFSZ, 677 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 678 upl_rxeof); 679 usbd_transfer(c->upl_xfer); 680 } 681 #endif 682 683 return (0); 684 } 685 686 void 687 upl_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 688 { 689 struct upl_softc *sc = priv; 690 struct ifnet *ifp = &sc->sc_if; 691 uByte stat; 692 693 DPRINTFN(15,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); 694 695 if (usbd_is_dying(sc->sc_udev)) 696 return; 697 698 if (!(ifp->if_flags & IFF_RUNNING)) 699 return; 700 701 if (status != USBD_NORMAL_COMPLETION) { 702 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 703 return; 704 } 705 sc->sc_intr_errs++; 706 if (usbd_ratecheck(&sc->sc_rx_notice)) { 707 printf("%s: %u usb errors on intr: %s\n", 708 sc->sc_dev.dv_xname, sc->sc_rx_errs, 709 usbd_errstr(status)); 710 sc->sc_intr_errs = 0; 711 } 712 if (status == USBD_STALLED) 713 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); 714 return; 715 } 716 717 stat = sc->sc_ibuf; 718 719 if (stat == 0) 720 return; 721 722 DPRINTFN(10,("%s: %s: stat=0x%02x\n", sc->sc_dev.dv_xname, 723 __func__, stat)); 724 725 } 726 727 int 728 upl_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 729 { 730 struct upl_softc *sc = ifp->if_softc; 731 struct ifreq *ifr = (struct ifreq *)data; 732 int s, error = 0; 733 734 if (usbd_is_dying(sc->sc_udev)) 735 return ENXIO; 736 737 DPRINTFN(5,("%s: %s: cmd=0x%08lx\n", 738 sc->sc_dev.dv_xname, __func__, command)); 739 740 s = splnet(); 741 742 switch(command) { 743 case SIOCSIFADDR: 744 ifp->if_flags |= IFF_UP; 745 if (!(ifp->if_flags & IFF_RUNNING)) 746 upl_init(sc); 747 break; 748 749 case SIOCSIFFLAGS: 750 if (ifp->if_flags & IFF_UP) { 751 if (ifp->if_flags & IFF_RUNNING) 752 error = ENETRESET; 753 else 754 upl_init(sc); 755 } else { 756 if (ifp->if_flags & IFF_RUNNING) 757 upl_stop(sc); 758 } 759 break; 760 761 case SIOCSIFMTU: 762 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ifp->if_hardmtu) 763 error = EINVAL; 764 else 765 ifp->if_mtu = ifr->ifr_mtu; 766 break; 767 768 default: 769 error = ENOTTY; 770 } 771 772 if (error == ENETRESET) 773 error = 0; 774 775 splx(s); 776 return (error); 777 } 778 779 void 780 upl_watchdog(struct ifnet *ifp) 781 { 782 struct upl_softc *sc = ifp->if_softc; 783 784 DPRINTFN(5,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); 785 786 if (usbd_is_dying(sc->sc_udev)) 787 return; 788 789 ifp->if_oerrors++; 790 printf("%s: watchdog timeout\n", sc->sc_dev.dv_xname); 791 792 upl_stop(sc); 793 upl_init(sc); 794 795 if (ifq_empty(&ifp->if_snd) == 0) 796 upl_start(ifp); 797 } 798 799 /* 800 * Stop the adapter and free any mbufs allocated to the 801 * RX and TX lists. 802 */ 803 void 804 upl_stop(struct upl_softc *sc) 805 { 806 usbd_status err; 807 struct ifnet *ifp; 808 int i; 809 810 DPRINTFN(10,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); 811 812 ifp = &sc->sc_if; 813 ifp->if_timer = 0; 814 ifp->if_flags &= ~IFF_RUNNING; 815 ifq_clr_oactive(&ifp->if_snd); 816 817 /* Stop transfers. */ 818 if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { 819 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]); 820 if (err) { 821 printf("%s: close rx pipe failed: %s\n", 822 sc->sc_dev.dv_xname, usbd_errstr(err)); 823 } 824 sc->sc_ep[UPL_ENDPT_RX] = NULL; 825 } 826 827 if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { 828 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]); 829 if (err) { 830 printf("%s: close tx pipe failed: %s\n", 831 sc->sc_dev.dv_xname, usbd_errstr(err)); 832 } 833 sc->sc_ep[UPL_ENDPT_TX] = NULL; 834 } 835 836 if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { 837 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]); 838 if (err) { 839 printf("%s: close intr pipe failed: %s\n", 840 sc->sc_dev.dv_xname, usbd_errstr(err)); 841 } 842 sc->sc_ep[UPL_ENDPT_INTR] = NULL; 843 } 844 845 /* Free RX resources. */ 846 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 847 if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) { 848 m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf); 849 sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL; 850 } 851 if (sc->sc_cdata.upl_rx_chain[i].upl_xfer != NULL) { 852 usbd_free_xfer(sc->sc_cdata.upl_rx_chain[i].upl_xfer); 853 sc->sc_cdata.upl_rx_chain[i].upl_xfer = NULL; 854 } 855 } 856 857 /* Free TX resources. */ 858 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 859 if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) { 860 m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf); 861 sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL; 862 } 863 if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) { 864 usbd_free_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer); 865 sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL; 866 } 867 } 868 } 869 870 int 871 upl_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, 872 struct rtentry *rt0) 873 { 874 return (if_enqueue(ifp, m)); 875 } 876