1 /*- 2 * Copyright (c) 1997, 1998, 1999, 2000 3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 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 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 /* 37 * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate 38 * adapters and others. 39 * 40 * Written by Bill Paul <wpaul@ee.columbia.edu> 41 * Electrical Engineering Department 42 * Columbia University, New York City 43 */ 44 45 /* 46 * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The 47 * RX filter uses a 512-bit multicast hash table, single perfect entry 48 * for the station address, and promiscuous mode. Unlike the ADMtek 49 * and KLSI chips, the CATC ASIC supports read and write combining 50 * mode where multiple packets can be transfered using a single bulk 51 * transaction, which helps performance a great deal. 52 */ 53 54 #include <sys/stdint.h> 55 #include <sys/stddef.h> 56 #include <sys/param.h> 57 #include <sys/queue.h> 58 #include <sys/types.h> 59 #include <sys/systm.h> 60 #include <sys/kernel.h> 61 #include <sys/bus.h> 62 #include <sys/linker_set.h> 63 #include <sys/module.h> 64 #include <sys/lock.h> 65 #include <sys/mutex.h> 66 #include <sys/condvar.h> 67 #include <sys/sysctl.h> 68 #include <sys/sx.h> 69 #include <sys/unistd.h> 70 #include <sys/callout.h> 71 #include <sys/malloc.h> 72 #include <sys/priv.h> 73 74 #include <dev/usb/usb.h> 75 #include <dev/usb/usbdi.h> 76 #include <dev/usb/usbdi_util.h> 77 #include "usbdevs.h" 78 79 #define USB_DEBUG_VAR cue_debug 80 #include <dev/usb/usb_debug.h> 81 #include <dev/usb/usb_process.h> 82 83 #include <dev/usb/net/usb_ethernet.h> 84 #include <dev/usb/net/if_cuereg.h> 85 86 /* 87 * Various supported device vendors/products. 88 */ 89 90 /* Belkin F5U111 adapter covered by NETMATE entry */ 91 92 static const struct usb_device_id cue_devs[] = { 93 #define CUE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 94 CUE_DEV(CATC, NETMATE), 95 CUE_DEV(CATC, NETMATE2), 96 CUE_DEV(SMARTBRIDGES, SMARTLINK), 97 #undef CUE_DEV 98 }; 99 100 /* prototypes */ 101 102 static device_probe_t cue_probe; 103 static device_attach_t cue_attach; 104 static device_detach_t cue_detach; 105 106 static usb_callback_t cue_bulk_read_callback; 107 static usb_callback_t cue_bulk_write_callback; 108 109 static uether_fn_t cue_attach_post; 110 static uether_fn_t cue_init; 111 static uether_fn_t cue_stop; 112 static uether_fn_t cue_start; 113 static uether_fn_t cue_tick; 114 static uether_fn_t cue_setmulti; 115 static uether_fn_t cue_setpromisc; 116 117 static uint8_t cue_csr_read_1(struct cue_softc *, uint16_t); 118 static uint16_t cue_csr_read_2(struct cue_softc *, uint8_t); 119 static int cue_csr_write_1(struct cue_softc *, uint16_t, uint16_t); 120 static int cue_mem(struct cue_softc *, uint8_t, uint16_t, void *, int); 121 static int cue_getmac(struct cue_softc *, void *); 122 static uint32_t cue_mchash(const uint8_t *); 123 static void cue_reset(struct cue_softc *); 124 125 #ifdef USB_DEBUG 126 static int cue_debug = 0; 127 128 SYSCTL_NODE(_hw_usb, OID_AUTO, cue, CTLFLAG_RW, 0, "USB cue"); 129 SYSCTL_INT(_hw_usb_cue, OID_AUTO, debug, CTLFLAG_RW, &cue_debug, 0, 130 "Debug level"); 131 #endif 132 133 static const struct usb_config cue_config[CUE_N_TRANSFER] = { 134 135 [CUE_BULK_DT_WR] = { 136 .type = UE_BULK, 137 .endpoint = UE_ADDR_ANY, 138 .direction = UE_DIR_OUT, 139 .bufsize = (MCLBYTES + 2), 140 .flags = {.pipe_bof = 1,}, 141 .callback = cue_bulk_write_callback, 142 .timeout = 10000, /* 10 seconds */ 143 }, 144 145 [CUE_BULK_DT_RD] = { 146 .type = UE_BULK, 147 .endpoint = UE_ADDR_ANY, 148 .direction = UE_DIR_IN, 149 .bufsize = (MCLBYTES + 2), 150 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 151 .callback = cue_bulk_read_callback, 152 }, 153 }; 154 155 static device_method_t cue_methods[] = { 156 /* Device interface */ 157 DEVMETHOD(device_probe, cue_probe), 158 DEVMETHOD(device_attach, cue_attach), 159 DEVMETHOD(device_detach, cue_detach), 160 161 {0, 0} 162 }; 163 164 static driver_t cue_driver = { 165 .name = "cue", 166 .methods = cue_methods, 167 .size = sizeof(struct cue_softc), 168 }; 169 170 static devclass_t cue_devclass; 171 172 DRIVER_MODULE(cue, uhub, cue_driver, cue_devclass, NULL, 0); 173 MODULE_DEPEND(cue, uether, 1, 1, 1); 174 MODULE_DEPEND(cue, usb, 1, 1, 1); 175 MODULE_DEPEND(cue, ether, 1, 1, 1); 176 MODULE_VERSION(cue, 1); 177 178 static const struct usb_ether_methods cue_ue_methods = { 179 .ue_attach_post = cue_attach_post, 180 .ue_start = cue_start, 181 .ue_init = cue_init, 182 .ue_stop = cue_stop, 183 .ue_tick = cue_tick, 184 .ue_setmulti = cue_setmulti, 185 .ue_setpromisc = cue_setpromisc, 186 }; 187 188 #define CUE_SETBIT(sc, reg, x) \ 189 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 190 191 #define CUE_CLRBIT(sc, reg, x) \ 192 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 193 194 static uint8_t 195 cue_csr_read_1(struct cue_softc *sc, uint16_t reg) 196 { 197 struct usb_device_request req; 198 uint8_t val; 199 200 req.bmRequestType = UT_READ_VENDOR_DEVICE; 201 req.bRequest = CUE_CMD_READREG; 202 USETW(req.wValue, 0); 203 USETW(req.wIndex, reg); 204 USETW(req.wLength, 1); 205 206 if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) { 207 /* ignore any errors */ 208 } 209 return (val); 210 } 211 212 static uint16_t 213 cue_csr_read_2(struct cue_softc *sc, uint8_t reg) 214 { 215 struct usb_device_request req; 216 uint16_t val; 217 218 req.bmRequestType = UT_READ_VENDOR_DEVICE; 219 req.bRequest = CUE_CMD_READREG; 220 USETW(req.wValue, 0); 221 USETW(req.wIndex, reg); 222 USETW(req.wLength, 2); 223 224 (void)uether_do_request(&sc->sc_ue, &req, &val, 1000); 225 return (le16toh(val)); 226 } 227 228 static int 229 cue_csr_write_1(struct cue_softc *sc, uint16_t reg, uint16_t val) 230 { 231 struct usb_device_request req; 232 233 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 234 req.bRequest = CUE_CMD_WRITEREG; 235 USETW(req.wValue, val); 236 USETW(req.wIndex, reg); 237 USETW(req.wLength, 0); 238 239 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 240 } 241 242 static int 243 cue_mem(struct cue_softc *sc, uint8_t cmd, uint16_t addr, void *buf, int len) 244 { 245 struct usb_device_request req; 246 247 if (cmd == CUE_CMD_READSRAM) 248 req.bmRequestType = UT_READ_VENDOR_DEVICE; 249 else 250 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 251 req.bRequest = cmd; 252 USETW(req.wValue, 0); 253 USETW(req.wIndex, addr); 254 USETW(req.wLength, len); 255 256 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 257 } 258 259 static int 260 cue_getmac(struct cue_softc *sc, void *buf) 261 { 262 struct usb_device_request req; 263 264 req.bmRequestType = UT_READ_VENDOR_DEVICE; 265 req.bRequest = CUE_CMD_GET_MACADDR; 266 USETW(req.wValue, 0); 267 USETW(req.wIndex, 0); 268 USETW(req.wLength, ETHER_ADDR_LEN); 269 270 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 271 } 272 273 #define CUE_BITS 9 274 275 static uint32_t 276 cue_mchash(const uint8_t *addr) 277 { 278 uint32_t crc; 279 280 /* Compute CRC for the address value. */ 281 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 282 283 return (crc & ((1 << CUE_BITS) - 1)); 284 } 285 286 static void 287 cue_setpromisc(struct usb_ether *ue) 288 { 289 struct cue_softc *sc = uether_getsc(ue); 290 struct ifnet *ifp = uether_getifp(ue); 291 292 CUE_LOCK_ASSERT(sc, MA_OWNED); 293 294 /* if we want promiscuous mode, set the allframes bit */ 295 if (ifp->if_flags & IFF_PROMISC) 296 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 297 else 298 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 299 300 /* write multicast hash-bits */ 301 cue_setmulti(ue); 302 } 303 304 static void 305 cue_setmulti(struct usb_ether *ue) 306 { 307 struct cue_softc *sc = uether_getsc(ue); 308 struct ifnet *ifp = uether_getifp(ue); 309 struct ifmultiaddr *ifma; 310 uint32_t h = 0, i; 311 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 312 313 CUE_LOCK_ASSERT(sc, MA_OWNED); 314 315 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 316 for (i = 0; i < 8; i++) 317 hashtbl[i] = 0xff; 318 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 319 &hashtbl, 8); 320 return; 321 } 322 323 /* now program new ones */ 324 if_maddr_rlock(ifp); 325 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 326 { 327 if (ifma->ifma_addr->sa_family != AF_LINK) 328 continue; 329 h = cue_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 330 hashtbl[h >> 3] |= 1 << (h & 0x7); 331 } 332 if_maddr_runlock(ifp); 333 334 /* 335 * Also include the broadcast address in the filter 336 * so we can receive broadcast frames. 337 */ 338 if (ifp->if_flags & IFF_BROADCAST) { 339 h = cue_mchash(ifp->if_broadcastaddr); 340 hashtbl[h >> 3] |= 1 << (h & 0x7); 341 } 342 343 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, &hashtbl, 8); 344 } 345 346 static void 347 cue_reset(struct cue_softc *sc) 348 { 349 struct usb_device_request req; 350 351 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 352 req.bRequest = CUE_CMD_RESET; 353 USETW(req.wValue, 0); 354 USETW(req.wIndex, 0); 355 USETW(req.wLength, 0); 356 357 if (uether_do_request(&sc->sc_ue, &req, NULL, 1000)) { 358 /* ignore any errors */ 359 } 360 361 /* 362 * wait a little while for the chip to get its brains in order: 363 */ 364 uether_pause(&sc->sc_ue, hz / 100); 365 } 366 367 static void 368 cue_attach_post(struct usb_ether *ue) 369 { 370 struct cue_softc *sc = uether_getsc(ue); 371 372 cue_getmac(sc, ue->ue_eaddr); 373 } 374 375 static int 376 cue_probe(device_t dev) 377 { 378 struct usb_attach_arg *uaa = device_get_ivars(dev); 379 380 if (uaa->usb_mode != USB_MODE_HOST) 381 return (ENXIO); 382 if (uaa->info.bConfigIndex != CUE_CONFIG_IDX) 383 return (ENXIO); 384 if (uaa->info.bIfaceIndex != CUE_IFACE_IDX) 385 return (ENXIO); 386 387 return (usbd_lookup_id_by_uaa(cue_devs, sizeof(cue_devs), uaa)); 388 } 389 390 /* 391 * Attach the interface. Allocate softc structures, do ifmedia 392 * setup and ethernet/BPF attach. 393 */ 394 static int 395 cue_attach(device_t dev) 396 { 397 struct usb_attach_arg *uaa = device_get_ivars(dev); 398 struct cue_softc *sc = device_get_softc(dev); 399 struct usb_ether *ue = &sc->sc_ue; 400 uint8_t iface_index; 401 int error; 402 403 device_set_usb_desc(dev); 404 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 405 406 iface_index = CUE_IFACE_IDX; 407 error = usbd_transfer_setup(uaa->device, &iface_index, 408 sc->sc_xfer, cue_config, CUE_N_TRANSFER, sc, &sc->sc_mtx); 409 if (error) { 410 device_printf(dev, "allocating USB transfers failed\n"); 411 goto detach; 412 } 413 414 ue->ue_sc = sc; 415 ue->ue_dev = dev; 416 ue->ue_udev = uaa->device; 417 ue->ue_mtx = &sc->sc_mtx; 418 ue->ue_methods = &cue_ue_methods; 419 420 error = uether_ifattach(ue); 421 if (error) { 422 device_printf(dev, "could not attach interface\n"); 423 goto detach; 424 } 425 return (0); /* success */ 426 427 detach: 428 cue_detach(dev); 429 return (ENXIO); /* failure */ 430 } 431 432 static int 433 cue_detach(device_t dev) 434 { 435 struct cue_softc *sc = device_get_softc(dev); 436 struct usb_ether *ue = &sc->sc_ue; 437 438 usbd_transfer_unsetup(sc->sc_xfer, CUE_N_TRANSFER); 439 uether_ifdetach(ue); 440 mtx_destroy(&sc->sc_mtx); 441 442 return (0); 443 } 444 445 static void 446 cue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 447 { 448 struct cue_softc *sc = usbd_xfer_softc(xfer); 449 struct usb_ether *ue = &sc->sc_ue; 450 struct ifnet *ifp = uether_getifp(ue); 451 struct usb_page_cache *pc; 452 uint8_t buf[2]; 453 int len; 454 int actlen; 455 456 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 457 458 switch (USB_GET_STATE(xfer)) { 459 case USB_ST_TRANSFERRED: 460 461 if (actlen <= (2 + sizeof(struct ether_header))) { 462 ifp->if_ierrors++; 463 goto tr_setup; 464 } 465 pc = usbd_xfer_get_frame(xfer, 0); 466 usbd_copy_out(pc, 0, buf, 2); 467 actlen -= 2; 468 len = buf[0] | (buf[1] << 8); 469 len = min(actlen, len); 470 471 uether_rxbuf(ue, pc, 2, len); 472 /* FALLTHROUGH */ 473 case USB_ST_SETUP: 474 tr_setup: 475 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 476 usbd_transfer_submit(xfer); 477 uether_rxflush(ue); 478 return; 479 480 default: /* Error */ 481 DPRINTF("bulk read error, %s\n", 482 usbd_errstr(error)); 483 484 if (error != USB_ERR_CANCELLED) { 485 /* try to clear stall first */ 486 usbd_xfer_set_stall(xfer); 487 goto tr_setup; 488 } 489 return; 490 491 } 492 } 493 494 static void 495 cue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 496 { 497 struct cue_softc *sc = usbd_xfer_softc(xfer); 498 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 499 struct usb_page_cache *pc; 500 struct mbuf *m; 501 uint8_t buf[2]; 502 503 switch (USB_GET_STATE(xfer)) { 504 case USB_ST_TRANSFERRED: 505 DPRINTFN(11, "transfer complete\n"); 506 ifp->if_opackets++; 507 508 /* FALLTHROUGH */ 509 case USB_ST_SETUP: 510 tr_setup: 511 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 512 513 if (m == NULL) 514 return; 515 if (m->m_pkthdr.len > MCLBYTES) 516 m->m_pkthdr.len = MCLBYTES; 517 usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2)); 518 519 /* the first two bytes are the frame length */ 520 521 buf[0] = (uint8_t)(m->m_pkthdr.len); 522 buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 523 524 pc = usbd_xfer_get_frame(xfer, 0); 525 usbd_copy_in(pc, 0, buf, 2); 526 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 527 528 /* 529 * If there's a BPF listener, bounce a copy of this frame 530 * to him. 531 */ 532 BPF_MTAP(ifp, m); 533 534 m_freem(m); 535 536 usbd_transfer_submit(xfer); 537 538 return; 539 540 default: /* Error */ 541 DPRINTFN(11, "transfer error, %s\n", 542 usbd_errstr(error)); 543 544 ifp->if_oerrors++; 545 546 if (error != USB_ERR_CANCELLED) { 547 /* try to clear stall first */ 548 usbd_xfer_set_stall(xfer); 549 goto tr_setup; 550 } 551 return; 552 } 553 } 554 555 static void 556 cue_tick(struct usb_ether *ue) 557 { 558 struct cue_softc *sc = uether_getsc(ue); 559 struct ifnet *ifp = uether_getifp(ue); 560 561 CUE_LOCK_ASSERT(sc, MA_OWNED); 562 563 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 564 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 565 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 566 567 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 568 ifp->if_ierrors++; 569 } 570 571 static void 572 cue_start(struct usb_ether *ue) 573 { 574 struct cue_softc *sc = uether_getsc(ue); 575 576 /* 577 * start the USB transfers, if not already started: 578 */ 579 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_RD]); 580 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_WR]); 581 } 582 583 static void 584 cue_init(struct usb_ether *ue) 585 { 586 struct cue_softc *sc = uether_getsc(ue); 587 struct ifnet *ifp = uether_getifp(ue); 588 int i; 589 590 CUE_LOCK_ASSERT(sc, MA_OWNED); 591 592 /* 593 * Cancel pending I/O and free all RX/TX buffers. 594 */ 595 cue_stop(ue); 596 #if 0 597 cue_reset(sc); 598 #endif 599 /* Set MAC address */ 600 for (i = 0; i < ETHER_ADDR_LEN; i++) 601 cue_csr_write_1(sc, CUE_PAR0 - i, IF_LLADDR(ifp)[i]); 602 603 /* Enable RX logic. */ 604 cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON); 605 606 /* Load the multicast filter */ 607 cue_setpromisc(ue); 608 609 /* 610 * Set the number of RX and TX buffers that we want 611 * to reserve inside the ASIC. 612 */ 613 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 614 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 615 616 /* Set advanced operation modes. */ 617 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 618 CUE_AOP_EMBED_RXLEN | 0x01);/* 1 wait state */ 619 620 /* Program the LED operation. */ 621 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 622 623 usbd_xfer_set_stall(sc->sc_xfer[CUE_BULK_DT_WR]); 624 625 ifp->if_drv_flags |= IFF_DRV_RUNNING; 626 cue_start(ue); 627 } 628 629 /* 630 * Stop the adapter and free any mbufs allocated to the 631 * RX and TX lists. 632 */ 633 static void 634 cue_stop(struct usb_ether *ue) 635 { 636 struct cue_softc *sc = uether_getsc(ue); 637 struct ifnet *ifp = uether_getifp(ue); 638 639 CUE_LOCK_ASSERT(sc, MA_OWNED); 640 641 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 642 643 /* 644 * stop all the transfers, if not already stopped: 645 */ 646 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_WR]); 647 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_RD]); 648 649 cue_csr_write_1(sc, CUE_ETHCTL, 0); 650 cue_reset(sc); 651 } 652