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 * $FreeBSD: head/sys/dev/usb/net/if_cue.c 271832 2014-09-18 21:09:22Z glebius $
33 */
34
35 /*
36 * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate
37 * adapters and others.
38 *
39 * Written by Bill Paul <wpaul@ee.columbia.edu>
40 * Electrical Engineering Department
41 * Columbia University, New York City
42 */
43
44 /*
45 * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The
46 * RX filter uses a 512-bit multicast hash table, single perfect entry
47 * for the station address, and promiscuous mode. Unlike the ADMtek
48 * and KLSI chips, the CATC ASIC supports read and write combining
49 * mode where multiple packets can be transfered using a single bulk
50 * transaction, which helps performance a great deal.
51 */
52
53 #include <sys/stdint.h>
54 #include <sys/param.h>
55 #include <sys/queue.h>
56 #include <sys/types.h>
57 #include <sys/systm.h>
58 #include <sys/socket.h>
59 #include <sys/kernel.h>
60 #include <sys/bus.h>
61 #include <sys/module.h>
62 #include <sys/lock.h>
63 #include <sys/condvar.h>
64 #include <sys/sysctl.h>
65 #include <sys/unistd.h>
66 #include <sys/callout.h>
67 #include <sys/malloc.h>
68 #include <sys/caps.h>
69
70 #include <net/if.h>
71 #include <net/if_var.h>
72 #include <net/ifq_var.h>
73
74 #include <bus/u4b/usb.h>
75 #include <bus/u4b/usbdi.h>
76 #include <bus/u4b/usbdi_util.h>
77 #include "usbdevs.h"
78
79 #define USB_DEBUG_VAR cue_debug
80 #include <bus/u4b/usb_debug.h>
81 #include <bus/u4b/usb_process.h>
82
83 #include <bus/u4b/net/usb_ethernet.h>
84 #include <bus/u4b/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_HOST_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 static 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 DEVMETHOD_END
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, NULL);
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
cue_csr_read_1(struct cue_softc * sc,uint16_t reg)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
cue_csr_read_2(struct cue_softc * sc,uint8_t reg)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
cue_csr_write_1(struct cue_softc * sc,uint16_t reg,uint16_t val)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
cue_mem(struct cue_softc * sc,uint8_t cmd,uint16_t addr,void * buf,int len)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
cue_getmac(struct cue_softc * sc,void * buf)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
cue_mchash(const uint8_t * addr)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
cue_setpromisc(struct usb_ether * ue)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);
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
cue_setmulti(struct usb_ether * ue)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);
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 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
325 {
326 if (ifma->ifma_addr->sa_family != AF_LINK)
327 continue;
328 h = cue_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
329 hashtbl[h >> 3] |= 1 << (h & 0x7);
330 }
331
332 /*
333 * Also include the broadcast address in the filter
334 * so we can receive broadcast frames.
335 */
336 if (ifp->if_flags & IFF_BROADCAST) {
337 h = cue_mchash(ifp->if_broadcastaddr);
338 hashtbl[h >> 3] |= 1 << (h & 0x7);
339 }
340
341 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, &hashtbl, 8);
342 }
343
344 static void
cue_reset(struct cue_softc * sc)345 cue_reset(struct cue_softc *sc)
346 {
347 struct usb_device_request req;
348
349 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
350 req.bRequest = CUE_CMD_RESET;
351 USETW(req.wValue, 0);
352 USETW(req.wIndex, 0);
353 USETW(req.wLength, 0);
354
355 if (uether_do_request(&sc->sc_ue, &req, NULL, 1000)) {
356 /* ignore any errors */
357 }
358
359 /*
360 * wait a little while for the chip to get its brains in order:
361 */
362 uether_pause(&sc->sc_ue, hz / 100);
363 }
364
365 static void
cue_attach_post(struct usb_ether * ue)366 cue_attach_post(struct usb_ether *ue)
367 {
368 struct cue_softc *sc = uether_getsc(ue);
369
370 cue_getmac(sc, ue->ue_eaddr);
371 }
372
373 static int
cue_probe(device_t dev)374 cue_probe(device_t dev)
375 {
376 struct usb_attach_arg *uaa = device_get_ivars(dev);
377
378 if (uaa->usb_mode != USB_MODE_HOST)
379 return (ENXIO);
380 if (uaa->info.bConfigIndex != CUE_CONFIG_IDX)
381 return (ENXIO);
382 if (uaa->info.bIfaceIndex != CUE_IFACE_IDX)
383 return (ENXIO);
384
385 return (usbd_lookup_id_by_uaa(cue_devs, sizeof(cue_devs), uaa));
386 }
387
388 /*
389 * Attach the interface. Allocate softc structures, do ifmedia
390 * setup and ethernet/BPF attach.
391 */
392 static int
cue_attach(device_t dev)393 cue_attach(device_t dev)
394 {
395 struct usb_attach_arg *uaa = device_get_ivars(dev);
396 struct cue_softc *sc = device_get_softc(dev);
397 struct usb_ether *ue = &sc->sc_ue;
398 uint8_t iface_index;
399 int error;
400
401 device_set_usb_desc(dev);
402 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, LK_CANRECURSE);
403
404 iface_index = CUE_IFACE_IDX;
405 error = usbd_transfer_setup(uaa->device, &iface_index,
406 sc->sc_xfer, cue_config, CUE_N_TRANSFER, sc, &sc->sc_lock);
407 if (error) {
408 device_printf(dev, "allocating USB transfers failed\n");
409 goto detach;
410 }
411
412 ue->ue_sc = sc;
413 ue->ue_dev = dev;
414 ue->ue_udev = uaa->device;
415 ue->ue_lock = &sc->sc_lock;
416 ue->ue_methods = &cue_ue_methods;
417
418 error = uether_ifattach(ue);
419 if (error) {
420 device_printf(dev, "could not attach interface\n");
421 goto detach;
422 }
423 return (0); /* success */
424
425 detach:
426 cue_detach(dev);
427 return (ENXIO); /* failure */
428 }
429
430 static int
cue_detach(device_t dev)431 cue_detach(device_t dev)
432 {
433 struct cue_softc *sc = device_get_softc(dev);
434 struct usb_ether *ue = &sc->sc_ue;
435
436 usbd_transfer_unsetup(sc->sc_xfer, CUE_N_TRANSFER);
437 uether_ifdetach(ue);
438 lockuninit(&sc->sc_lock);
439
440 return (0);
441 }
442
443 static void
cue_bulk_read_callback(struct usb_xfer * xfer,usb_error_t error)444 cue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
445 {
446 struct cue_softc *sc = usbd_xfer_softc(xfer);
447 struct usb_ether *ue = &sc->sc_ue;
448 struct ifnet *ifp = uether_getifp(ue);
449 struct usb_page_cache *pc;
450 uint8_t buf[2];
451 int len;
452 int actlen;
453
454 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
455
456 switch (USB_GET_STATE(xfer)) {
457 case USB_ST_TRANSFERRED:
458
459 if (actlen <= (int)(2 + sizeof(struct ether_header))) {
460 IFNET_STAT_INC(ifp, ierrors, 1);
461 goto tr_setup;
462 }
463 pc = usbd_xfer_get_frame(xfer, 0);
464 usbd_copy_out(pc, 0, buf, 2);
465 actlen -= 2;
466 len = buf[0] | (buf[1] << 8);
467 len = min(actlen, len);
468
469 uether_rxbuf(ue, pc, 2, len);
470 /* FALLTHROUGH */
471 case USB_ST_SETUP:
472 tr_setup:
473 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
474 usbd_transfer_submit(xfer);
475 uether_rxflush(ue);
476 return;
477
478 default: /* Error */
479 DPRINTF("bulk read error, %s\n",
480 usbd_errstr(error));
481
482 if (error != USB_ERR_CANCELLED) {
483 /* try to clear stall first */
484 usbd_xfer_set_stall(xfer);
485 goto tr_setup;
486 }
487 return;
488
489 }
490 }
491
492 static void
cue_bulk_write_callback(struct usb_xfer * xfer,usb_error_t error)493 cue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
494 {
495 struct cue_softc *sc = usbd_xfer_softc(xfer);
496 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
497 struct usb_page_cache *pc;
498 struct mbuf *m;
499 uint8_t buf[2];
500
501 switch (USB_GET_STATE(xfer)) {
502 case USB_ST_TRANSFERRED:
503 DPRINTFN(11, "transfer complete\n");
504 IFNET_STAT_INC(ifp, opackets, 1);
505
506 /* FALLTHROUGH */
507 case USB_ST_SETUP:
508 tr_setup:
509 m = ifq_dequeue(&ifp->if_snd);
510
511 if (m == NULL)
512 return;
513 if (m->m_pkthdr.len > MCLBYTES)
514 m->m_pkthdr.len = MCLBYTES;
515 usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2));
516
517 /* the first two bytes are the frame length */
518
519 buf[0] = (uint8_t)(m->m_pkthdr.len);
520 buf[1] = (uint8_t)(m->m_pkthdr.len >> 8);
521
522 pc = usbd_xfer_get_frame(xfer, 0);
523 usbd_copy_in(pc, 0, buf, 2);
524 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len);
525
526 /*
527 * If there's a BPF listener, bounce a copy of this frame
528 * to him.
529 */
530 BPF_MTAP(ifp, m);
531
532 m_freem(m);
533
534 usbd_transfer_submit(xfer);
535
536 return;
537
538 default: /* Error */
539 DPRINTFN(11, "transfer error, %s\n",
540 usbd_errstr(error));
541
542 IFNET_STAT_INC(ifp, oerrors, 1);
543
544 if (error != USB_ERR_CANCELLED) {
545 /* try to clear stall first */
546 usbd_xfer_set_stall(xfer);
547 goto tr_setup;
548 }
549 return;
550 }
551 }
552
553 static void
cue_tick(struct usb_ether * ue)554 cue_tick(struct usb_ether *ue)
555 {
556 struct cue_softc *sc = uether_getsc(ue);
557 struct ifnet *ifp = uether_getifp(ue);
558
559 CUE_LOCK_ASSERT(sc);
560
561 IFNET_STAT_INC(ifp, collisions, cue_csr_read_2(sc, CUE_TX_SINGLECOLL));
562 IFNET_STAT_INC(ifp, collisions, cue_csr_read_2(sc, CUE_TX_MULTICOLL));
563 IFNET_STAT_INC(ifp, collisions, cue_csr_read_2(sc, CUE_TX_EXCESSCOLL));
564
565 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR))
566 IFNET_STAT_INC(ifp, ierrors, 1);
567 }
568
569 static void
cue_start(struct usb_ether * ue)570 cue_start(struct usb_ether *ue)
571 {
572 struct cue_softc *sc = uether_getsc(ue);
573
574 /*
575 * start the USB transfers, if not already started:
576 */
577 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_RD]);
578 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_WR]);
579 }
580
581 static void
cue_init(struct usb_ether * ue)582 cue_init(struct usb_ether *ue)
583 {
584 struct cue_softc *sc = uether_getsc(ue);
585 struct ifnet *ifp = uether_getifp(ue);
586 int i;
587
588 CUE_LOCK_ASSERT(sc);
589
590 /*
591 * Cancel pending I/O and free all RX/TX buffers.
592 */
593 cue_stop(ue);
594 #if 0
595 cue_reset(sc);
596 #endif
597 /* Set MAC address */
598 for (i = 0; i < ETHER_ADDR_LEN; i++)
599 cue_csr_write_1(sc, CUE_PAR0 - i, IF_LLADDR(ifp)[i]);
600
601 /* Enable RX logic. */
602 cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON);
603
604 /* Load the multicast filter */
605 cue_setpromisc(ue);
606
607 /*
608 * Set the number of RX and TX buffers that we want
609 * to reserve inside the ASIC.
610 */
611 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES);
612 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES);
613
614 /* Set advanced operation modes. */
615 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES,
616 CUE_AOP_EMBED_RXLEN | 0x01);/* 1 wait state */
617
618 /* Program the LED operation. */
619 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK);
620
621 usbd_xfer_set_stall(sc->sc_xfer[CUE_BULK_DT_WR]);
622
623 ifp->if_flags |= IFF_RUNNING;
624 cue_start(ue);
625 }
626
627 /*
628 * Stop the adapter and free any mbufs allocated to the
629 * RX and TX lists.
630 */
631 static void
cue_stop(struct usb_ether * ue)632 cue_stop(struct usb_ether *ue)
633 {
634 struct cue_softc *sc = uether_getsc(ue);
635 struct ifnet *ifp = uether_getifp(ue);
636
637 CUE_LOCK_ASSERT(sc);
638
639 ifp->if_flags &= ~IFF_RUNNING;
640
641 /*
642 * stop all the transfers, if not already stopped:
643 */
644 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_WR]);
645 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_RD]);
646
647 cue_csr_write_1(sc, CUE_ETHCTL, 0);
648 cue_reset(sc);
649 }
650