1/*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1997, 1998, 1999, 2000 5 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35#include <sys/cdefs.h> 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 transferred 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/socket.h> 61#include <sys/kernel.h> 62#include <sys/bus.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 <net/if.h> 75#include <net/if_var.h> 76 77#include <dev/usb/usb.h> 78#include <dev/usb/usbdi.h> 79#include <dev/usb/usbdi_util.h> 80#include "usbdevs.h" 81 82#define USB_DEBUG_VAR cue_debug 83#include <dev/usb/usb_debug.h> 84#include <dev/usb/usb_process.h> 85 86#include <dev/usb/net/usb_ethernet.h> 87#include <dev/usb/net/if_cuereg.h> 88 89/* 90 * Various supported device vendors/products. 91 */ 92 93/* Belkin F5U111 adapter covered by NETMATE entry */ 94 95static const STRUCT_USB_HOST_ID cue_devs[] = { 96#define CUE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 97 CUE_DEV(CATC, NETMATE), 98 CUE_DEV(CATC, NETMATE2), 99 CUE_DEV(SMARTBRIDGES, SMARTLINK), 100#undef CUE_DEV 101}; 102 103/* prototypes */ 104 105static device_probe_t cue_probe; 106static device_attach_t cue_attach; 107static device_detach_t cue_detach; 108 109static usb_callback_t cue_bulk_read_callback; 110static usb_callback_t cue_bulk_write_callback; 111 112static uether_fn_t cue_attach_post; 113static uether_fn_t cue_init; 114static uether_fn_t cue_stop; 115static uether_fn_t cue_start; 116static uether_fn_t cue_tick; 117static uether_fn_t cue_setmulti; 118static uether_fn_t cue_setpromisc; 119 120static uint8_t cue_csr_read_1(struct cue_softc *, uint16_t); 121static uint16_t cue_csr_read_2(struct cue_softc *, uint8_t); 122static int cue_csr_write_1(struct cue_softc *, uint16_t, uint16_t); 123static int cue_mem(struct cue_softc *, uint8_t, uint16_t, void *, int); 124static int cue_getmac(struct cue_softc *, void *); 125static uint32_t cue_mchash(const uint8_t *); 126static void cue_reset(struct cue_softc *); 127 128#ifdef USB_DEBUG 129static int cue_debug = 0; 130 131static SYSCTL_NODE(_hw_usb, OID_AUTO, cue, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 132 "USB cue"); 133SYSCTL_INT(_hw_usb_cue, OID_AUTO, debug, CTLFLAG_RWTUN, &cue_debug, 0, 134 "Debug level"); 135#endif 136 137static const struct usb_config cue_config[CUE_N_TRANSFER] = { 138 [CUE_BULK_DT_WR] = { 139 .type = UE_BULK, 140 .endpoint = UE_ADDR_ANY, 141 .direction = UE_DIR_OUT, 142 .bufsize = (MCLBYTES + 2), 143 .flags = {.pipe_bof = 1,}, 144 .callback = cue_bulk_write_callback, 145 .timeout = 10000, /* 10 seconds */ 146 }, 147 148 [CUE_BULK_DT_RD] = { 149 .type = UE_BULK, 150 .endpoint = UE_ADDR_ANY, 151 .direction = UE_DIR_IN, 152 .bufsize = (MCLBYTES + 2), 153 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 154 .callback = cue_bulk_read_callback, 155 }, 156}; 157 158static device_method_t cue_methods[] = { 159 /* Device interface */ 160 DEVMETHOD(device_probe, cue_probe), 161 DEVMETHOD(device_attach, cue_attach), 162 DEVMETHOD(device_detach, cue_detach), 163 164 DEVMETHOD_END 165}; 166 167static driver_t cue_driver = { 168 .name = "cue", 169 .methods = cue_methods, 170 .size = sizeof(struct cue_softc), 171}; 172 173DRIVER_MODULE(cue, uhub, cue_driver, NULL, NULL); 174MODULE_DEPEND(cue, uether, 1, 1, 1); 175MODULE_DEPEND(cue, usb, 1, 1, 1); 176MODULE_DEPEND(cue, ether, 1, 1, 1); 177MODULE_VERSION(cue, 1); 178USB_PNP_HOST_INFO(cue_devs); 179 180static const struct usb_ether_methods cue_ue_methods = { 181 .ue_attach_post = cue_attach_post, 182 .ue_start = cue_start, 183 .ue_init = cue_init, 184 .ue_stop = cue_stop, 185 .ue_tick = cue_tick, 186 .ue_setmulti = cue_setmulti, 187 .ue_setpromisc = cue_setpromisc, 188}; 189 190#define CUE_SETBIT(sc, reg, x) \ 191 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 192 193#define CUE_CLRBIT(sc, reg, x) \ 194 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 195 196static uint8_t 197cue_csr_read_1(struct cue_softc *sc, uint16_t reg) 198{ 199 struct usb_device_request req; 200 uint8_t val; 201 202 req.bmRequestType = UT_READ_VENDOR_DEVICE; 203 req.bRequest = CUE_CMD_READREG; 204 USETW(req.wValue, 0); 205 USETW(req.wIndex, reg); 206 USETW(req.wLength, 1); 207 208 if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) { 209 /* ignore any errors */ 210 } 211 return (val); 212} 213 214static uint16_t 215cue_csr_read_2(struct cue_softc *sc, uint8_t reg) 216{ 217 struct usb_device_request req; 218 uint16_t val; 219 220 req.bmRequestType = UT_READ_VENDOR_DEVICE; 221 req.bRequest = CUE_CMD_READREG; 222 USETW(req.wValue, 0); 223 USETW(req.wIndex, reg); 224 USETW(req.wLength, 2); 225 226 (void)uether_do_request(&sc->sc_ue, &req, &val, 1000); 227 return (le16toh(val)); 228} 229 230static int 231cue_csr_write_1(struct cue_softc *sc, uint16_t reg, uint16_t val) 232{ 233 struct usb_device_request req; 234 235 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 236 req.bRequest = CUE_CMD_WRITEREG; 237 USETW(req.wValue, val); 238 USETW(req.wIndex, reg); 239 USETW(req.wLength, 0); 240 241 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 242} 243 244static int 245cue_mem(struct cue_softc *sc, uint8_t cmd, uint16_t addr, void *buf, int len) 246{ 247 struct usb_device_request req; 248 249 if (cmd == CUE_CMD_READSRAM) 250 req.bmRequestType = UT_READ_VENDOR_DEVICE; 251 else 252 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 253 req.bRequest = cmd; 254 USETW(req.wValue, 0); 255 USETW(req.wIndex, addr); 256 USETW(req.wLength, len); 257 258 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 259} 260 261static int 262cue_getmac(struct cue_softc *sc, void *buf) 263{ 264 struct usb_device_request req; 265 266 req.bmRequestType = UT_READ_VENDOR_DEVICE; 267 req.bRequest = CUE_CMD_GET_MACADDR; 268 USETW(req.wValue, 0); 269 USETW(req.wIndex, 0); 270 USETW(req.wLength, ETHER_ADDR_LEN); 271 272 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 273} 274 275#define CUE_BITS 9 276 277static uint32_t 278cue_mchash(const uint8_t *addr) 279{ 280 uint32_t crc; 281 282 /* Compute CRC for the address value. */ 283 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 284 285 return (crc & ((1 << CUE_BITS) - 1)); 286} 287 288static void 289cue_setpromisc(struct usb_ether *ue) 290{ 291 struct cue_softc *sc = uether_getsc(ue); 292 if_t ifp = uether_getifp(ue); 293 294 CUE_LOCK_ASSERT(sc, MA_OWNED); 295 296 /* if we want promiscuous mode, set the allframes bit */ 297 if (if_getflags(ifp) & IFF_PROMISC) 298 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 299 else 300 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 301 302 /* write multicast hash-bits */ 303 cue_setmulti(ue); 304} 305 306static u_int 307cue_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 308{ 309 uint8_t *hashtbl = arg; 310 uint32_t h; 311 312 h = cue_mchash(LLADDR(sdl)); 313 hashtbl[h >> 3] |= 1 << (h & 0x7); 314 315 return (1); 316} 317 318static void 319cue_setmulti(struct usb_ether *ue) 320{ 321 struct cue_softc *sc = uether_getsc(ue); 322 if_t ifp = uether_getifp(ue); 323 uint32_t h, i; 324 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 325 326 CUE_LOCK_ASSERT(sc, MA_OWNED); 327 328 if (if_getflags(ifp) & IFF_ALLMULTI || if_getflags(ifp) & IFF_PROMISC) { 329 for (i = 0; i < 8; i++) 330 hashtbl[i] = 0xff; 331 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 332 &hashtbl, 8); 333 return; 334 } 335 336 /* now program new ones */ 337 if_foreach_llmaddr(ifp, cue_hash_maddr, hashtbl); 338 339 /* 340 * Also include the broadcast address in the filter 341 * so we can receive broadcast frames. 342 */ 343 if (if_getflags(ifp) & IFF_BROADCAST) { 344 h = cue_mchash(if_getbroadcastaddr(ifp)); 345 hashtbl[h >> 3] |= 1 << (h & 0x7); 346 } 347 348 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, &hashtbl, 8); 349} 350 351static void 352cue_reset(struct cue_softc *sc) 353{ 354 struct usb_device_request req; 355 356 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 357 req.bRequest = CUE_CMD_RESET; 358 USETW(req.wValue, 0); 359 USETW(req.wIndex, 0); 360 USETW(req.wLength, 0); 361 362 if (uether_do_request(&sc->sc_ue, &req, NULL, 1000)) { 363 /* ignore any errors */ 364 } 365 366 /* 367 * wait a little while for the chip to get its brains in order: 368 */ 369 uether_pause(&sc->sc_ue, hz / 100); 370} 371 372static void 373cue_attach_post(struct usb_ether *ue) 374{ 375 struct cue_softc *sc = uether_getsc(ue); 376 377 cue_getmac(sc, ue->ue_eaddr); 378} 379 380static int 381cue_probe(device_t dev) 382{ 383 struct usb_attach_arg *uaa = device_get_ivars(dev); 384 385 if (uaa->usb_mode != USB_MODE_HOST) 386 return (ENXIO); 387 if (uaa->info.bConfigIndex != CUE_CONFIG_IDX) 388 return (ENXIO); 389 if (uaa->info.bIfaceIndex != CUE_IFACE_IDX) 390 return (ENXIO); 391 392 return (usbd_lookup_id_by_uaa(cue_devs, sizeof(cue_devs), uaa)); 393} 394 395/* 396 * Attach the interface. Allocate softc structures, do ifmedia 397 * setup and ethernet/BPF attach. 398 */ 399static int 400cue_attach(device_t dev) 401{ 402 struct usb_attach_arg *uaa = device_get_ivars(dev); 403 struct cue_softc *sc = device_get_softc(dev); 404 struct usb_ether *ue = &sc->sc_ue; 405 uint8_t iface_index; 406 int error; 407 408 device_set_usb_desc(dev); 409 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 410 411 iface_index = CUE_IFACE_IDX; 412 error = usbd_transfer_setup(uaa->device, &iface_index, 413 sc->sc_xfer, cue_config, CUE_N_TRANSFER, sc, &sc->sc_mtx); 414 if (error) { 415 device_printf(dev, "allocating USB transfers failed\n"); 416 goto detach; 417 } 418 419 ue->ue_sc = sc; 420 ue->ue_dev = dev; 421 ue->ue_udev = uaa->device; 422 ue->ue_mtx = &sc->sc_mtx; 423 ue->ue_methods = &cue_ue_methods; 424 425 error = uether_ifattach(ue); 426 if (error) { 427 device_printf(dev, "could not attach interface\n"); 428 goto detach; 429 } 430 return (0); /* success */ 431 432detach: 433 cue_detach(dev); 434 return (ENXIO); /* failure */ 435} 436 437static int 438cue_detach(device_t dev) 439{ 440 struct cue_softc *sc = device_get_softc(dev); 441 struct usb_ether *ue = &sc->sc_ue; 442 443 usbd_transfer_unsetup(sc->sc_xfer, CUE_N_TRANSFER); 444 uether_ifdetach(ue); 445 mtx_destroy(&sc->sc_mtx); 446 447 return (0); 448} 449 450static void 451cue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 452{ 453 struct cue_softc *sc = usbd_xfer_softc(xfer); 454 struct usb_ether *ue = &sc->sc_ue; 455 if_t ifp = uether_getifp(ue); 456 struct usb_page_cache *pc; 457 uint8_t buf[2]; 458 int len; 459 int actlen; 460 461 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 462 463 switch (USB_GET_STATE(xfer)) { 464 case USB_ST_TRANSFERRED: 465 466 if (actlen <= (int)(2 + sizeof(struct ether_header))) { 467 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 468 goto tr_setup; 469 } 470 pc = usbd_xfer_get_frame(xfer, 0); 471 usbd_copy_out(pc, 0, buf, 2); 472 actlen -= 2; 473 len = buf[0] | (buf[1] << 8); 474 len = min(actlen, len); 475 476 uether_rxbuf(ue, pc, 2, len); 477 /* FALLTHROUGH */ 478 case USB_ST_SETUP: 479tr_setup: 480 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 481 usbd_transfer_submit(xfer); 482 uether_rxflush(ue); 483 return; 484 485 default: /* Error */ 486 DPRINTF("bulk read error, %s\n", 487 usbd_errstr(error)); 488 489 if (error != USB_ERR_CANCELLED) { 490 /* try to clear stall first */ 491 usbd_xfer_set_stall(xfer); 492 goto tr_setup; 493 } 494 return; 495 } 496} 497 498static void 499cue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 500{ 501 struct cue_softc *sc = usbd_xfer_softc(xfer); 502 if_t ifp = uether_getifp(&sc->sc_ue); 503 struct usb_page_cache *pc; 504 struct mbuf *m; 505 uint8_t buf[2]; 506 507 switch (USB_GET_STATE(xfer)) { 508 case USB_ST_TRANSFERRED: 509 DPRINTFN(11, "transfer complete\n"); 510 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 511 512 /* FALLTHROUGH */ 513 case USB_ST_SETUP: 514tr_setup: 515 m = if_dequeue(ifp); 516 517 if (m == NULL) 518 return; 519 if (m->m_pkthdr.len > MCLBYTES) 520 m->m_pkthdr.len = MCLBYTES; 521 usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2)); 522 523 /* the first two bytes are the frame length */ 524 525 buf[0] = (uint8_t)(m->m_pkthdr.len); 526 buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 527 528 pc = usbd_xfer_get_frame(xfer, 0); 529 usbd_copy_in(pc, 0, buf, 2); 530 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 531 532 /* 533 * If there's a BPF listener, bounce a copy of this frame 534 * to him. 535 */ 536 BPF_MTAP(ifp, m); 537 538 m_freem(m); 539 540 usbd_transfer_submit(xfer); 541 542 return; 543 544 default: /* Error */ 545 DPRINTFN(11, "transfer error, %s\n", 546 usbd_errstr(error)); 547 548 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 549 550 if (error != USB_ERR_CANCELLED) { 551 /* try to clear stall first */ 552 usbd_xfer_set_stall(xfer); 553 goto tr_setup; 554 } 555 return; 556 } 557} 558 559static void 560cue_tick(struct usb_ether *ue) 561{ 562 struct cue_softc *sc = uether_getsc(ue); 563 if_t ifp = uether_getifp(ue); 564 565 CUE_LOCK_ASSERT(sc, MA_OWNED); 566 567 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_SINGLECOLL)); 568 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_MULTICOLL)); 569 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_EXCESSCOLL)); 570 571 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 572 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 573} 574 575static void 576cue_start(struct usb_ether *ue) 577{ 578 struct cue_softc *sc = uether_getsc(ue); 579 580 /* 581 * start the USB transfers, if not already started: 582 */ 583 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_RD]); 584 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_WR]); 585} 586 587static void 588cue_init(struct usb_ether *ue) 589{ 590 struct cue_softc *sc = uether_getsc(ue); 591 if_t ifp = uether_getifp(ue); 592 int i; 593 594 CUE_LOCK_ASSERT(sc, MA_OWNED); 595 596 /* 597 * Cancel pending I/O and free all RX/TX buffers. 598 */ 599 cue_stop(ue); 600#if 0 601 cue_reset(sc); 602#endif 603 /* Set MAC address */ 604 for (i = 0; i < ETHER_ADDR_LEN; i++) 605 cue_csr_write_1(sc, CUE_PAR0 - i, if_getlladdr(ifp)[i]); 606 607 /* Enable RX logic. */ 608 cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON); 609 610 /* Load the multicast filter */ 611 cue_setpromisc(ue); 612 613 /* 614 * Set the number of RX and TX buffers that we want 615 * to reserve inside the ASIC. 616 */ 617 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 618 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 619 620 /* Set advanced operation modes. */ 621 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 622 CUE_AOP_EMBED_RXLEN | 0x01);/* 1 wait state */ 623 624 /* Program the LED operation. */ 625 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 626 627 usbd_xfer_set_stall(sc->sc_xfer[CUE_BULK_DT_WR]); 628 629 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 630 cue_start(ue); 631} 632 633/* 634 * Stop the adapter and free any mbufs allocated to the 635 * RX and TX lists. 636 */ 637static void 638cue_stop(struct usb_ether *ue) 639{ 640 struct cue_softc *sc = uether_getsc(ue); 641 if_t ifp = uether_getifp(ue); 642 643 CUE_LOCK_ASSERT(sc, MA_OWNED); 644 645 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 646 647 /* 648 * stop all the transfers, if not already stopped: 649 */ 650 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_WR]); 651 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_RD]); 652 653 cue_csr_write_1(sc, CUE_ETHCTL, 0); 654 cue_reset(sc); 655} 656