if_upl.c revision 1.50
1 /* $NetBSD: if_upl.c,v 1.50 2016/04/20 09:01:04 knakahara 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Prolific PL2301/PL2302 driver 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: if_upl.c,v 1.50 2016/04/20 09:01:04 knakahara Exp $"); 38 39 #ifdef _KERNEL_OPT 40 #include "opt_inet.h" 41 #endif 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/callout.h> 46 #include <sys/sockio.h> 47 #include <sys/mbuf.h> 48 #include <sys/malloc.h> 49 #include <sys/kernel.h> 50 #include <sys/socket.h> 51 52 #include <sys/device.h> 53 #include <sys/rndsource.h> 54 55 #include <net/if.h> 56 #include <net/if_types.h> 57 #include <net/if_dl.h> 58 #include <net/netisr.h> 59 60 #include <net/bpf.h> 61 62 #ifdef INET 63 #include <netinet/in.h> 64 #include <netinet/in_var.h> 65 #include <netinet/if_inarp.h> 66 #endif 67 68 69 #include <dev/usb/usb.h> 70 #include <dev/usb/usbdi.h> 71 #include <dev/usb/usbdi_util.h> 72 #include <dev/usb/usbdevs.h> 73 74 /* 75 * 7 6 5 4 3 2 1 0 76 * tx rx 1 0 77 * 1110 0000 rxdata 78 * 1010 0000 idle 79 * 0010 0000 tx over 80 * 0110 tx over + rxd 81 */ 82 83 #define UPL_RXDATA 0x40 84 #define UPL_TXOK 0x80 85 86 #define UPL_INTR_PKTLEN 1 87 88 #define UPL_CONFIG_NO 1 89 #define UPL_IFACE_IDX 0 90 91 /***/ 92 93 #define UPL_INTR_INTERVAL 20 94 95 #define UPL_BUFSZ 1024 96 97 #define UPL_RX_FRAMES 1 98 #define UPL_TX_FRAMES 1 99 100 #define UPL_RX_LIST_CNT 1 101 #define UPL_TX_LIST_CNT 1 102 103 #define UPL_ENDPT_RX 0x0 104 #define UPL_ENDPT_TX 0x1 105 #define UPL_ENDPT_INTR 0x2 106 #define UPL_ENDPT_MAX 0x3 107 108 struct upl_type { 109 u_int16_t upl_vid; 110 u_int16_t upl_did; 111 }; 112 113 struct upl_softc; 114 115 struct upl_chain { 116 struct upl_softc *upl_sc; 117 usbd_xfer_handle upl_xfer; 118 char *upl_buf; 119 struct mbuf *upl_mbuf; 120 int upl_idx; 121 }; 122 123 struct upl_cdata { 124 struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT]; 125 struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT]; 126 int upl_tx_prod; 127 int upl_tx_cons; 128 int upl_tx_cnt; 129 int upl_rx_prod; 130 }; 131 132 struct upl_softc { 133 device_t sc_dev; 134 135 struct ifnet sc_if; 136 krndsource_t sc_rnd_source; 137 138 struct callout sc_stat_ch; 139 140 usbd_device_handle sc_udev; 141 usbd_interface_handle sc_iface; 142 u_int16_t sc_vendor; 143 u_int16_t sc_product; 144 int sc_ed[UPL_ENDPT_MAX]; 145 usbd_pipe_handle sc_ep[UPL_ENDPT_MAX]; 146 struct upl_cdata sc_cdata; 147 148 uByte sc_ibuf; 149 150 char sc_dying; 151 char sc_attached; 152 u_int sc_rx_errs; 153 struct timeval sc_rx_notice; 154 u_int sc_intr_errs; 155 }; 156 157 #ifdef UPL_DEBUG 158 #define DPRINTF(x) if (upldebug) printf x 159 #define DPRINTFN(n,x) if (upldebug >= (n)) printf x 160 int upldebug = 0; 161 #else 162 #define DPRINTF(x) 163 #define DPRINTFN(n,x) 164 #endif 165 166 /* 167 * Various supported device vendors/products. 168 */ 169 Static struct upl_type sc_devs[] = { 170 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 }, 171 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 }, 172 { 0, 0 } 173 }; 174 175 int upl_match(device_t, cfdata_t, void *); 176 void upl_attach(device_t, device_t, void *); 177 int upl_detach(device_t, int); 178 int upl_activate(device_t, enum devact); 179 extern struct cfdriver upl_cd; 180 CFATTACH_DECL_NEW(upl, sizeof(struct upl_softc), upl_match, upl_attach, upl_detach, upl_activate); 181 182 Static int upl_openpipes(struct upl_softc *); 183 Static int upl_tx_list_init(struct upl_softc *); 184 Static int upl_rx_list_init(struct upl_softc *); 185 Static int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *); 186 Static int upl_send(struct upl_softc *, struct mbuf *, int); 187 Static void upl_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 188 Static void upl_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 189 Static void upl_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 190 Static void upl_start(struct ifnet *); 191 Static int upl_ioctl(struct ifnet *, u_long, void *); 192 Static void upl_init(void *); 193 Static void upl_stop(struct upl_softc *); 194 Static void upl_watchdog(struct ifnet *); 195 196 Static int upl_output(struct ifnet *, struct mbuf *, const struct sockaddr *, 197 struct rtentry *); 198 Static void upl_input(struct ifnet *, struct mbuf *); 199 200 /* 201 * Probe for a Prolific chip. 202 */ 203 int 204 upl_match(device_t parent, cfdata_t match, void *aux) 205 { 206 struct usb_attach_arg *uaa = aux; 207 struct upl_type *t; 208 209 for (t = sc_devs; t->upl_vid != 0; t++) 210 if (uaa->vendor == t->upl_vid && uaa->product == t->upl_did) 211 return (UMATCH_VENDOR_PRODUCT); 212 213 return (UMATCH_NONE); 214 } 215 216 void 217 upl_attach(device_t parent, device_t self, void *aux) 218 { 219 struct upl_softc *sc = device_private(self); 220 struct usb_attach_arg *uaa = aux; 221 char *devinfop; 222 int s; 223 usbd_device_handle dev = uaa->device; 224 usbd_interface_handle iface; 225 usbd_status err; 226 struct ifnet *ifp; 227 usb_interface_descriptor_t *id; 228 usb_endpoint_descriptor_t *ed; 229 int i; 230 231 DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p", sc, dev)); 232 233 sc->sc_dev = self; 234 235 aprint_naive("\n"); 236 aprint_normal("\n"); 237 238 devinfop = usbd_devinfo_alloc(dev, 0); 239 aprint_normal_dev(self, "%s\n", devinfop); 240 usbd_devinfo_free(devinfop); 241 242 err = usbd_set_config_no(dev, UPL_CONFIG_NO, 1); 243 if (err) { 244 aprint_error_dev(self, "failed to set configuration" 245 ", err=%s\n", usbd_errstr(err)); 246 return; 247 } 248 249 sc->sc_udev = dev; 250 sc->sc_product = uaa->product; 251 sc->sc_vendor = uaa->vendor; 252 253 err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface); 254 if (err) { 255 aprint_error_dev(self, "getting interface handle failed\n"); 256 return; 257 } 258 259 sc->sc_iface = iface; 260 id = usbd_get_interface_descriptor(iface); 261 262 /* Find endpoints. */ 263 for (i = 0; i < id->bNumEndpoints; i++) { 264 ed = usbd_interface2endpoint_descriptor(iface, i); 265 if (ed == NULL) { 266 aprint_error_dev(self, "couldn't get ep %d\n", i); 267 return; 268 } 269 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 270 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 271 sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress; 272 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 273 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 274 sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress; 275 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 276 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 277 sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress; 278 } 279 } 280 281 if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 || 282 sc->sc_ed[UPL_ENDPT_INTR] == 0) { 283 aprint_error_dev(self, "missing endpoint\n"); 284 return; 285 } 286 287 s = splnet(); 288 289 /* Initialize interface info.*/ 290 ifp = &sc->sc_if; 291 ifp->if_softc = sc; 292 ifp->if_mtu = UPL_BUFSZ; 293 ifp->if_flags = IFF_POINTOPOINT | IFF_NOARP | IFF_SIMPLEX; 294 ifp->if_ioctl = upl_ioctl; 295 ifp->if_start = upl_start; 296 ifp->if_watchdog = upl_watchdog; 297 strncpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 298 299 ifp->if_type = IFT_OTHER; 300 ifp->if_addrlen = 0; 301 ifp->if_hdrlen = 0; 302 ifp->if_output = upl_output; 303 ifp->_if_input = upl_input; 304 ifp->if_baudrate = 12000000; 305 ifp->if_dlt = DLT_RAW; 306 IFQ_SET_READY(&ifp->if_snd); 307 308 /* Attach the interface. */ 309 if_initialize(ifp); 310 if_register(ifp); 311 if_alloc_sadl(ifp); 312 313 bpf_attach(ifp, DLT_RAW, 0); 314 rnd_attach_source(&sc->sc_rnd_source, device_xname(sc->sc_dev), 315 RND_TYPE_NET, RND_FLAG_DEFAULT); 316 317 sc->sc_attached = 1; 318 splx(s); 319 320 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 321 sc->sc_dev); 322 323 return; 324 } 325 326 int 327 upl_detach(device_t self, int flags) 328 { 329 struct upl_softc *sc = device_private(self); 330 struct ifnet *ifp = &sc->sc_if; 331 int s; 332 333 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->sc_dev), __func__)); 334 335 s = splusb(); 336 337 if (!sc->sc_attached) { 338 /* Detached before attached finished, so just bail out. */ 339 splx(s); 340 return (0); 341 } 342 343 if (ifp->if_flags & IFF_RUNNING) 344 upl_stop(sc); 345 346 rnd_detach_source(&sc->sc_rnd_source); 347 bpf_detach(ifp); 348 349 if_detach(ifp); 350 351 #ifdef DIAGNOSTIC 352 if (sc->sc_ep[UPL_ENDPT_TX] != NULL || 353 sc->sc_ep[UPL_ENDPT_RX] != NULL || 354 sc->sc_ep[UPL_ENDPT_INTR] != NULL) 355 aprint_debug_dev(self, "detach has active endpoints\n"); 356 #endif 357 358 sc->sc_attached = 0; 359 splx(s); 360 361 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 362 sc->sc_dev); 363 364 return (0); 365 } 366 367 int 368 upl_activate(device_t self, enum devact act) 369 { 370 struct upl_softc *sc = device_private(self); 371 372 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->sc_dev), __func__)); 373 374 switch (act) { 375 case DVACT_DEACTIVATE: 376 /* Deactivate the interface. */ 377 if_deactivate(&sc->sc_if); 378 sc->sc_dying = 1; 379 return 0; 380 default: 381 return EOPNOTSUPP; 382 } 383 } 384 385 /* 386 * Initialize an RX descriptor and attach an MBUF cluster. 387 */ 388 Static int 389 upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m) 390 { 391 struct mbuf *m_new = NULL; 392 393 DPRINTFN(8,("%s: %s: enter\n", device_xname(sc->sc_dev), __func__)); 394 395 if (m == NULL) { 396 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 397 if (m_new == NULL) { 398 printf("%s: no memory for rx list " 399 "-- packet dropped!\n", device_xname(sc->sc_dev)); 400 return (ENOBUFS); 401 } 402 403 MCLGET(m_new, M_DONTWAIT); 404 if (!(m_new->m_flags & M_EXT)) { 405 printf("%s: no memory for rx list " 406 "-- packet dropped!\n", device_xname(sc->sc_dev)); 407 m_freem(m_new); 408 return (ENOBUFS); 409 } 410 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 411 } else { 412 m_new = m; 413 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 414 m_new->m_data = m_new->m_ext.ext_buf; 415 } 416 417 c->upl_mbuf = m_new; 418 419 return (0); 420 } 421 422 Static int 423 upl_rx_list_init(struct upl_softc *sc) 424 { 425 struct upl_cdata *cd; 426 struct upl_chain *c; 427 int i; 428 429 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->sc_dev), __func__)); 430 431 cd = &sc->sc_cdata; 432 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 433 c = &cd->upl_rx_chain[i]; 434 c->upl_sc = sc; 435 c->upl_idx = i; 436 if (upl_newbuf(sc, c, NULL) == ENOBUFS) 437 return (ENOBUFS); 438 if (c->upl_xfer == NULL) { 439 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 440 if (c->upl_xfer == NULL) 441 return (ENOBUFS); 442 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 443 if (c->upl_buf == NULL) { 444 usbd_free_xfer(c->upl_xfer); 445 return (ENOBUFS); 446 } 447 } 448 } 449 450 return (0); 451 } 452 453 Static int 454 upl_tx_list_init(struct upl_softc *sc) 455 { 456 struct upl_cdata *cd; 457 struct upl_chain *c; 458 int i; 459 460 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->sc_dev), __func__)); 461 462 cd = &sc->sc_cdata; 463 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 464 c = &cd->upl_tx_chain[i]; 465 c->upl_sc = sc; 466 c->upl_idx = i; 467 c->upl_mbuf = NULL; 468 if (c->upl_xfer == NULL) { 469 c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); 470 if (c->upl_xfer == NULL) 471 return (ENOBUFS); 472 c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); 473 if (c->upl_buf == NULL) { 474 usbd_free_xfer(c->upl_xfer); 475 return (ENOBUFS); 476 } 477 } 478 } 479 480 return (0); 481 } 482 483 /* 484 * A frame has been uploaded: pass the resulting mbuf chain up to 485 * the higher level protocols. 486 */ 487 Static void 488 upl_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 489 { 490 struct upl_chain *c = priv; 491 struct upl_softc *sc = c->upl_sc; 492 struct ifnet *ifp = &sc->sc_if; 493 struct mbuf *m; 494 int total_len = 0; 495 int s; 496 497 if (sc->sc_dying) 498 return; 499 500 if (!(ifp->if_flags & IFF_RUNNING)) 501 return; 502 503 if (status != USBD_NORMAL_COMPLETION) { 504 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 505 return; 506 sc->sc_rx_errs++; 507 if (usbd_ratecheck(&sc->sc_rx_notice)) { 508 printf("%s: %u usb errors on rx: %s\n", 509 device_xname(sc->sc_dev), sc->sc_rx_errs, 510 usbd_errstr(status)); 511 sc->sc_rx_errs = 0; 512 } 513 if (status == USBD_STALLED) 514 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); 515 goto done; 516 } 517 518 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 519 520 DPRINTFN(9,("%s: %s: enter status=%d length=%d\n", 521 device_xname(sc->sc_dev), __func__, status, total_len)); 522 523 m = c->upl_mbuf; 524 memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len); 525 526 ifp->if_ipackets++; 527 m->m_pkthdr.len = m->m_len = total_len; 528 529 m->m_pkthdr.rcvif = ifp; 530 531 s = splnet(); 532 533 /* XXX ugly */ 534 if (upl_newbuf(sc, c, NULL) == ENOBUFS) { 535 ifp->if_ierrors++; 536 goto done1; 537 } 538 539 /* 540 * Handle BPF listeners. Let the BPF user see the packet, but 541 * don't pass it up to the ether_input() layer unless it's 542 * a broadcast packet, multicast packet, matches our ethernet 543 * address or the interface is in promiscuous mode. 544 */ 545 bpf_mtap(ifp, m); 546 547 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->sc_dev), 548 __func__, m->m_len)); 549 550 if_input((ifp), (m)); 551 552 done1: 553 splx(s); 554 555 done: 556 #if 1 557 /* Setup new transfer. */ 558 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 559 c, c->upl_buf, UPL_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 560 USBD_NO_TIMEOUT, upl_rxeof); 561 usbd_transfer(c->upl_xfer); 562 563 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->sc_dev), 564 __func__)); 565 #endif 566 } 567 568 /* 569 * A frame was downloaded to the chip. It's safe for us to clean up 570 * the list buffers. 571 */ 572 Static void 573 upl_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 574 usbd_status status) 575 { 576 struct upl_chain *c = priv; 577 struct upl_softc *sc = c->upl_sc; 578 struct ifnet *ifp = &sc->sc_if; 579 int s; 580 581 if (sc->sc_dying) 582 return; 583 584 s = splnet(); 585 586 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->sc_dev), 587 __func__, status)); 588 589 ifp->if_timer = 0; 590 ifp->if_flags &= ~IFF_OACTIVE; 591 592 if (status != USBD_NORMAL_COMPLETION) { 593 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 594 splx(s); 595 return; 596 } 597 ifp->if_oerrors++; 598 printf("%s: usb error on tx: %s\n", device_xname(sc->sc_dev), 599 usbd_errstr(status)); 600 if (status == USBD_STALLED) 601 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_TX]); 602 splx(s); 603 return; 604 } 605 606 ifp->if_opackets++; 607 608 m_freem(c->upl_mbuf); 609 c->upl_mbuf = NULL; 610 611 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 612 upl_start(ifp); 613 614 splx(s); 615 } 616 617 Static int 618 upl_send(struct upl_softc *sc, struct mbuf *m, int idx) 619 { 620 int total_len; 621 struct upl_chain *c; 622 usbd_status err; 623 624 c = &sc->sc_cdata.upl_tx_chain[idx]; 625 626 /* 627 * Copy the mbuf data into a contiguous buffer, leaving two 628 * bytes at the beginning to hold the frame length. 629 */ 630 m_copydata(m, 0, m->m_pkthdr.len, c->upl_buf); 631 c->upl_mbuf = m; 632 633 total_len = m->m_pkthdr.len; 634 635 DPRINTFN(10,("%s: %s: total_len=%d\n", 636 device_xname(sc->sc_dev), __func__, total_len)); 637 638 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_TX], 639 c, c->upl_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 640 upl_txeof); 641 642 /* Transmit */ 643 err = usbd_transfer(c->upl_xfer); 644 if (err != USBD_IN_PROGRESS) { 645 printf("%s: upl_send error=%s\n", device_xname(sc->sc_dev), 646 usbd_errstr(err)); 647 upl_stop(sc); 648 return (EIO); 649 } 650 651 sc->sc_cdata.upl_tx_cnt++; 652 653 return (0); 654 } 655 656 Static void 657 upl_start(struct ifnet *ifp) 658 { 659 struct upl_softc *sc = ifp->if_softc; 660 struct mbuf *m_head = NULL; 661 662 if (sc->sc_dying) 663 return; 664 665 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->sc_dev),__func__)); 666 667 if (ifp->if_flags & IFF_OACTIVE) 668 return; 669 670 IFQ_POLL(&ifp->if_snd, m_head); 671 if (m_head == NULL) 672 return; 673 674 if (upl_send(sc, m_head, 0)) { 675 ifp->if_flags |= IFF_OACTIVE; 676 return; 677 } 678 679 IFQ_DEQUEUE(&ifp->if_snd, m_head); 680 681 /* 682 * If there's a BPF listener, bounce a copy of this frame 683 * to him. 684 */ 685 bpf_mtap(ifp, m_head); 686 687 ifp->if_flags |= IFF_OACTIVE; 688 689 /* 690 * Set a timeout in case the chip goes out to lunch. 691 */ 692 ifp->if_timer = 5; 693 } 694 695 Static void 696 upl_init(void *xsc) 697 { 698 struct upl_softc *sc = xsc; 699 struct ifnet *ifp = &sc->sc_if; 700 int s; 701 702 if (sc->sc_dying) 703 return; 704 705 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->sc_dev),__func__)); 706 707 if (ifp->if_flags & IFF_RUNNING) 708 return; 709 710 s = splnet(); 711 712 /* Init TX ring. */ 713 if (upl_tx_list_init(sc) == ENOBUFS) { 714 printf("%s: tx list init failed\n", device_xname(sc->sc_dev)); 715 splx(s); 716 return; 717 } 718 719 /* Init RX ring. */ 720 if (upl_rx_list_init(sc) == ENOBUFS) { 721 printf("%s: rx list init failed\n", device_xname(sc->sc_dev)); 722 splx(s); 723 return; 724 } 725 726 if (sc->sc_ep[UPL_ENDPT_RX] == NULL) { 727 if (upl_openpipes(sc)) { 728 splx(s); 729 return; 730 } 731 } 732 733 ifp->if_flags |= IFF_RUNNING; 734 ifp->if_flags &= ~IFF_OACTIVE; 735 736 splx(s); 737 } 738 739 Static int 740 upl_openpipes(struct upl_softc *sc) 741 { 742 struct upl_chain *c; 743 usbd_status err; 744 int i; 745 746 /* Open RX and TX pipes. */ 747 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX], 748 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]); 749 if (err) { 750 printf("%s: open rx pipe failed: %s\n", 751 device_xname(sc->sc_dev), usbd_errstr(err)); 752 return (EIO); 753 } 754 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX], 755 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]); 756 if (err) { 757 printf("%s: open tx pipe failed: %s\n", 758 device_xname(sc->sc_dev), usbd_errstr(err)); 759 return (EIO); 760 } 761 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR], 762 USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_INTR], sc, 763 &sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr, 764 UPL_INTR_INTERVAL); 765 if (err) { 766 printf("%s: open intr pipe failed: %s\n", 767 device_xname(sc->sc_dev), usbd_errstr(err)); 768 return (EIO); 769 } 770 771 772 #if 1 773 /* Start up the receive pipe. */ 774 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 775 c = &sc->sc_cdata.upl_rx_chain[i]; 776 usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], 777 c, c->upl_buf, UPL_BUFSZ, 778 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 779 upl_rxeof); 780 usbd_transfer(c->upl_xfer); 781 } 782 #endif 783 784 return (0); 785 } 786 787 Static void 788 upl_intr(usbd_xfer_handle xfer, usbd_private_handle priv, 789 usbd_status status) 790 { 791 struct upl_softc *sc = priv; 792 struct ifnet *ifp = &sc->sc_if; 793 uByte stat; 794 795 DPRINTFN(15,("%s: %s: enter\n", device_xname(sc->sc_dev),__func__)); 796 797 if (sc->sc_dying) 798 return; 799 800 if (!(ifp->if_flags & IFF_RUNNING)) 801 return; 802 803 if (status != USBD_NORMAL_COMPLETION) { 804 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 805 return; 806 } 807 sc->sc_intr_errs++; 808 if (usbd_ratecheck(&sc->sc_rx_notice)) { 809 printf("%s: %u usb errors on intr: %s\n", 810 device_xname(sc->sc_dev), sc->sc_rx_errs, 811 usbd_errstr(status)); 812 sc->sc_intr_errs = 0; 813 } 814 if (status == USBD_STALLED) 815 usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); 816 return; 817 } 818 819 stat = sc->sc_ibuf; 820 821 if (stat == 0) 822 return; 823 824 DPRINTFN(10,("%s: %s: stat=0x%02x\n", device_xname(sc->sc_dev), 825 __func__, stat)); 826 827 } 828 829 Static int 830 upl_ioctl(struct ifnet *ifp, u_long command, void *data) 831 { 832 struct upl_softc *sc = ifp->if_softc; 833 struct ifaddr *ifa = (struct ifaddr *)data; 834 struct ifreq *ifr = (struct ifreq *)data; 835 int s, error = 0; 836 837 if (sc->sc_dying) 838 return (EIO); 839 840 DPRINTFN(5,("%s: %s: cmd=0x%08lx\n", 841 device_xname(sc->sc_dev), __func__, command)); 842 843 s = splnet(); 844 845 switch(command) { 846 case SIOCINITIFADDR: 847 ifp->if_flags |= IFF_UP; 848 upl_init(sc); 849 850 switch (ifa->ifa_addr->sa_family) { 851 #ifdef INET 852 case AF_INET: 853 break; 854 #endif /* INET */ 855 } 856 break; 857 858 case SIOCSIFMTU: 859 if (ifr->ifr_mtu > UPL_BUFSZ) 860 error = EINVAL; 861 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 862 error = 0; 863 break; 864 865 case SIOCSIFFLAGS: 866 if ((error = ifioctl_common(ifp, command, data)) != 0) 867 break; 868 /* XXX re-use ether_ioctl() */ 869 switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { 870 case IFF_UP: 871 upl_init(sc); 872 break; 873 case IFF_RUNNING: 874 upl_stop(sc); 875 break; 876 default: 877 break; 878 } 879 break; 880 default: 881 error = ifioctl_common(ifp, command, data); 882 break; 883 } 884 885 splx(s); 886 887 return (error); 888 } 889 890 Static void 891 upl_watchdog(struct ifnet *ifp) 892 { 893 struct upl_softc *sc = ifp->if_softc; 894 895 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->sc_dev),__func__)); 896 897 if (sc->sc_dying) 898 return; 899 900 ifp->if_oerrors++; 901 printf("%s: watchdog timeout\n", device_xname(sc->sc_dev)); 902 903 upl_stop(sc); 904 upl_init(sc); 905 906 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 907 upl_start(ifp); 908 } 909 910 /* 911 * Stop the adapter and free any mbufs allocated to the 912 * RX and TX lists. 913 */ 914 Static void 915 upl_stop(struct upl_softc *sc) 916 { 917 usbd_status err; 918 struct ifnet *ifp; 919 int i; 920 921 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->sc_dev),__func__)); 922 923 ifp = &sc->sc_if; 924 ifp->if_timer = 0; 925 926 /* Stop transfers. */ 927 if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { 928 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_RX]); 929 if (err) { 930 printf("%s: abort rx pipe failed: %s\n", 931 device_xname(sc->sc_dev), usbd_errstr(err)); 932 } 933 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]); 934 if (err) { 935 printf("%s: close rx pipe failed: %s\n", 936 device_xname(sc->sc_dev), usbd_errstr(err)); 937 } 938 sc->sc_ep[UPL_ENDPT_RX] = NULL; 939 } 940 941 if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { 942 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_TX]); 943 if (err) { 944 printf("%s: abort tx pipe failed: %s\n", 945 device_xname(sc->sc_dev), usbd_errstr(err)); 946 } 947 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]); 948 if (err) { 949 printf("%s: close tx pipe failed: %s\n", 950 device_xname(sc->sc_dev), usbd_errstr(err)); 951 } 952 sc->sc_ep[UPL_ENDPT_TX] = NULL; 953 } 954 955 if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { 956 err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_INTR]); 957 if (err) { 958 printf("%s: abort intr pipe failed: %s\n", 959 device_xname(sc->sc_dev), usbd_errstr(err)); 960 } 961 err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]); 962 if (err) { 963 printf("%s: close intr pipe failed: %s\n", 964 device_xname(sc->sc_dev), usbd_errstr(err)); 965 } 966 sc->sc_ep[UPL_ENDPT_INTR] = NULL; 967 } 968 969 /* Free RX resources. */ 970 for (i = 0; i < UPL_RX_LIST_CNT; i++) { 971 if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) { 972 m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf); 973 sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL; 974 } 975 if (sc->sc_cdata.upl_rx_chain[i].upl_xfer != NULL) { 976 usbd_free_xfer(sc->sc_cdata.upl_rx_chain[i].upl_xfer); 977 sc->sc_cdata.upl_rx_chain[i].upl_xfer = NULL; 978 } 979 } 980 981 /* Free TX resources. */ 982 for (i = 0; i < UPL_TX_LIST_CNT; i++) { 983 if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) { 984 m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf); 985 sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL; 986 } 987 if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) { 988 usbd_free_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer); 989 sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL; 990 } 991 } 992 993 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 994 } 995 996 Static int 997 upl_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, 998 struct rtentry *rt0) 999 { 1000 int s, len, error; 1001 1002 DPRINTFN(10,("%s: %s: enter\n", 1003 device_xname(((struct upl_softc *)ifp->if_softc)->sc_dev), 1004 __func__)); 1005 1006 /* 1007 * if the queueing discipline needs packet classification, 1008 * do it now. 1009 */ 1010 IFQ_CLASSIFY(&ifp->if_snd, m, dst->sa_family); 1011 1012 len = m->m_pkthdr.len; 1013 s = splnet(); 1014 /* 1015 * Queue message on interface, and start output if interface 1016 * not yet active. 1017 */ 1018 IFQ_ENQUEUE(&ifp->if_snd, m, error); 1019 if (error) { 1020 /* mbuf is already freed */ 1021 splx(s); 1022 return (error); 1023 } 1024 ifp->if_obytes += len; 1025 if ((ifp->if_flags & IFF_OACTIVE) == 0) 1026 (*ifp->if_start)(ifp); 1027 splx(s); 1028 1029 return (0); 1030 } 1031 1032 Static void 1033 upl_input(struct ifnet *ifp, struct mbuf *m) 1034 { 1035 #ifdef INET 1036 size_t pktlen = m->m_len; 1037 int s; 1038 1039 s = splnet(); 1040 if (__predict_false(!pktq_enqueue(ip_pktq, m, 0))) { 1041 ifp->if_iqdrops++; 1042 m_freem(m); 1043 } else { 1044 ifp->if_ipackets++; 1045 ifp->if_ibytes += pktlen; 1046 } 1047 splx(s); 1048 #endif 1049 } 1050
Indexes created Mon Sep 29 21:09:56 GMT 2025