if_aue.c revision 1.37 1 /* $NetBSD: if_aue.c,v 1.37 2000/04/02 21:25:41 augustss Exp $ */
2 /*
3 * Copyright (c) 1997, 1998, 1999, 2000
4 * Bill Paul <wpaul (at) ee.columbia.edu>. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Bill Paul.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $FreeBSD: src/sys/dev/usb/if_aue.c,v 1.11 2000/01/14 01:36:14 wpaul Exp $
34 */
35
36 /*
37 * ADMtek AN986 Pegasus USB to ethernet driver. Datasheet is available
38 * from http://www.admtek.com.tw.
39 *
40 * Written by Bill Paul <wpaul (at) ee.columbia.edu>
41 * Electrical Engineering Department
42 * Columbia University, New York City
43 */
44
45 /*
46 * The Pegasus chip uses four USB "endpoints" to provide 10/100 ethernet
47 * support: the control endpoint for reading/writing registers, burst
48 * read endpoint for packet reception, burst write for packet transmission
49 * and one for "interrupts." The chip uses the same RX filter scheme
50 * as the other ADMtek ethernet parts: one perfect filter entry for the
51 * the station address and a 64-bit multicast hash table. The chip supports
52 * both MII and HomePNA attachments.
53 *
54 * Since the maximum data transfer speed of USB is supposed to be 12Mbps,
55 * you're never really going to get 100Mbps speeds from this device. I
56 * think the idea is to allow the device to connect to 10 or 100Mbps
57 * networks, not necessarily to provide 100Mbps performance. Also, since
58 * the controller uses an external PHY chip, it's possible that board
59 * designers might simply choose a 10Mbps PHY.
60 *
61 * Registers are accessed using usbd_do_request(). Packet transfers are
62 * done using usbd_transfer() and friends.
63 */
64
65 /*
66 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson.
67 */
68
69 /*
70 * TODO:
71 * better error messages from rxstat
72 * split out if_auevar.h
73 * add thread to avoid register reads from interrupt context
74 * more error checks
75 * investigate short rx problem
76 * proper cleanup on errors
77 */
78
79 #if defined(__NetBSD__)
80 #include "opt_inet.h"
81 #include "opt_ns.h"
82 #include "bpfilter.h"
83 #include "rnd.h"
84 #elif defined(__OpenBSD__)
85 #include "bpfilter.h"
86 #endif /* defined(__OpenBSD__) */
87
88 #include <sys/param.h>
89 #include <sys/systm.h>
90 #include <sys/sockio.h>
91 #include <sys/mbuf.h>
92 #include <sys/malloc.h>
93 #include <sys/kernel.h>
94 #include <sys/socket.h>
95
96 #if defined(__FreeBSD__)
97
98 #include <net/ethernet.h>
99 #include <machine/clock.h> /* for DELAY */
100 #include <sys/bus.h>
101 /* "controller miibus0" required. See GENERIC if you get errors here. */
102 #include "miibus_if.h"
103
104 #elif defined(__NetBSD__) || defined(__OpenBSD__)
105
106 #include <sys/device.h>
107 #if NRND > 0
108 #include <sys/rnd.h>
109 #endif
110
111 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
112
113 #include <net/if.h>
114 #if defined(__NetBSD__) || defined(__FreeBSD__)
115 #include <net/if_arp.h>
116 #endif
117 #include <net/if_dl.h>
118 #include <net/if_media.h>
119
120 #if defined(__NetBSD__) || defined(__OpenBSD__)
121 #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m))
122 #else
123 #define BPF_MTAP(ifp, m) bpf_mtap((ifp), (m))
124 #endif
125
126 #if defined(__FreeBSD__) || NBPFILTER > 0
127 #include <net/bpf.h>
128 #endif
129
130 #if defined(__NetBSD__)
131 #include <net/if_ether.h>
132 #ifdef INET
133 #include <netinet/in.h>
134 #include <netinet/if_inarp.h>
135 #endif
136 #endif /* defined(__NetBSD__) */
137
138 #if defined(__OpenBSD__)
139 #ifdef INET
140 #include <netinet/in.h>
141 #include <netinet/in_systm.h>
142 #include <netinet/in_var.h>
143 #include <netinet/ip.h>
144 #include <netinet/if_ether.h>
145 #endif
146 #endif /* defined(__OpenBSD__) */
147
148 #if defined(__NetBSD__) || defined(__OpenBSD__)
149 #ifdef NS
150 #include <netns/ns.h>
151 #include <netns/ns_if.h>
152 #endif
153 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
154
155 #include <dev/mii/mii.h>
156 #include <dev/mii/miivar.h>
157
158 #include <dev/usb/usb.h>
159 #include <dev/usb/usbdi.h>
160 #include <dev/usb/usbdi_util.h>
161 #include <dev/usb/usbdevs.h>
162
163 #ifdef __FreeBSD__
164 #include <dev/usb/usb_ethersubr.h>
165 #endif
166
167 #include <dev/usb/if_auereg.h>
168
169 #ifdef AUE_DEBUG
170 #define DPRINTF(x) if (auedebug) logprintf x
171 #define DPRINTFN(n,x) if (auedebug >= (n)) logprintf x
172 int auedebug = 0;
173 #else
174 #define DPRINTF(x)
175 #define DPRINTFN(n,x)
176 #endif
177
178 /*
179 * Various supported device vendors/products.
180 */
181 Static struct aue_type aue_devs[] = {
182 { USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB100 },
183 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUATX },
184 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB100TX },
185 { USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUS },
186 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX },
187 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX_PNA },
188 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2202USB },
189 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TX },
190 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTX },
191 { 0, 0 }
192 };
193
194 USB_DECLARE_DRIVER(aue);
195
196 Static int aue_tx_list_init __P((struct aue_softc *));
197 Static int aue_rx_list_init __P((struct aue_softc *));
198 Static int aue_newbuf __P((struct aue_softc *, struct aue_chain *,
199 struct mbuf *));
200 Static int aue_send __P((struct aue_softc *, struct mbuf *, int));
201 Static void aue_intr __P((usbd_xfer_handle,
202 usbd_private_handle, usbd_status));
203 Static void aue_rxeof __P((usbd_xfer_handle,
204 usbd_private_handle, usbd_status));
205 Static void aue_txeof __P((usbd_xfer_handle,
206 usbd_private_handle, usbd_status));
207 Static void aue_tick __P((void *));
208 Static void aue_start __P((struct ifnet *));
209 Static int aue_ioctl __P((struct ifnet *, u_long, caddr_t));
210 Static void aue_init __P((void *));
211 Static void aue_stop __P((struct aue_softc *));
212 Static void aue_watchdog __P((struct ifnet *));
213 #ifdef __FreeBSD__
214 Static void aue_shutdown __P((device_ptr_t));
215 #endif
216 Static int aue_openpipes __P((struct aue_softc *));
217 Static int aue_ifmedia_upd __P((struct ifnet *));
218 Static void aue_ifmedia_sts __P((struct ifnet *, struct ifmediareq *));
219
220 Static int aue_eeprom_getword __P((struct aue_softc *, int));
221 Static void aue_read_mac __P((struct aue_softc *, u_char *));
222 Static int aue_miibus_readreg __P((device_ptr_t, int, int));
223 #if defined(__FreeBSD__)
224 Static int aue_miibus_writereg __P((device_ptr_t, int, int, int));
225 #elif defined(__NetBSD__) || defined(__OpenBSD__)
226 Static void aue_miibus_writereg __P((device_ptr_t, int, int, int));
227 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
228 Static void aue_miibus_statchg __P((device_ptr_t));
229
230 Static void aue_setmulti __P((struct aue_softc *));
231 Static u_int32_t aue_crc __P((caddr_t));
232 Static void aue_reset __P((struct aue_softc *));
233
234 Static int aue_csr_read_1 __P((struct aue_softc *, int));
235 Static int aue_csr_write_1 __P((struct aue_softc *, int, int));
236 Static int aue_csr_read_2 __P((struct aue_softc *, int));
237 Static int aue_csr_write_2 __P((struct aue_softc *, int, int));
238
239 #if defined(__FreeBSD__)
240 #if !defined(lint)
241 static const char rcsid[] =
242 "$FreeBSD: src/sys/dev/usb/if_aue.c,v 1.11 2000/01/14 01:36:14 wpaul Exp $";
243 #endif
244
245 Static void aue_rxstart __P((struct ifnet *));
246
247 Static struct usb_qdat aue_qdat;
248
249 Static device_method_t aue_methods[] = {
250 /* Device interface */
251 DEVMETHOD(device_probe, aue_match),
252 DEVMETHOD(device_attach, aue_attach),
253 DEVMETHOD(device_detach, aue_detach),
254 DEVMETHOD(device_shutdown, aue_shutdown),
255
256 /* bus interface */
257 DEVMETHOD(bus_print_child, bus_generic_print_child),
258 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
259
260 /* MII interface */
261 DEVMETHOD(miibus_readreg, aue_miibus_readreg),
262 DEVMETHOD(miibus_writereg, aue_miibus_writereg),
263 DEVMETHOD(miibus_statchg, aue_miibus_statchg),
264
265 { 0, 0 }
266 };
267
268 Static driver_t aue_driver = {
269 "aue",
270 aue_methods,
271 sizeof(struct aue_softc)
272 };
273
274 Static devclass_t aue_devclass;
275
276 DRIVER_MODULE(if_aue, uhub, aue_driver, aue_devclass, usbd_driver_load, 0);
277 DRIVER_MODULE(miibus, aue, miibus_driver, miibus_devclass, 0, 0);
278
279 #endif /* __FreeBSD__ */
280
281 #define AUE_DO_REQUEST(dev, req, data) \
282 usbd_do_request_flags(dev, req, data, USBD_NO_TSLEEP, NULL)
283
284 #define AUE_SETBIT(sc, reg, x) \
285 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) | (x))
286
287 #define AUE_CLRBIT(sc, reg, x) \
288 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x))
289
290 Static int
291 aue_csr_read_1(sc, reg)
292 struct aue_softc *sc;
293 int reg;
294 {
295 usb_device_request_t req;
296 usbd_status err;
297 uByte val = 0;
298 int s;
299
300 if (sc->aue_dying)
301 return (0);
302
303 req.bmRequestType = UT_READ_VENDOR_DEVICE;
304 req.bRequest = AUE_UR_READREG;
305 USETW(req.wValue, 0);
306 USETW(req.wIndex, reg);
307 USETW(req.wLength, 1);
308
309 s = splusb();
310 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
311 splx(s);
312
313 if (err) {
314 DPRINTF(("%s: aue_csr_read_1: reg=0x%x err=%s\n",
315 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
316 return (0);
317 }
318
319 return (val);
320 }
321
322 Static int
323 aue_csr_read_2(sc, reg)
324 struct aue_softc *sc;
325 int reg;
326 {
327 usb_device_request_t req;
328 usbd_status err;
329 uWord val;
330 int s;
331
332 if (sc->aue_dying)
333 return (0);
334
335 req.bmRequestType = UT_READ_VENDOR_DEVICE;
336 req.bRequest = AUE_UR_READREG;
337 USETW(req.wValue, 0);
338 USETW(req.wIndex, reg);
339 USETW(req.wLength, 2);
340
341 s = splusb();
342 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
343 splx(s);
344
345 if (err) {
346 DPRINTF(("%s: aue_csr_read_2: reg=0x%x err=%s\n",
347 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
348 return (0);
349 }
350
351 return (UGETW(val));
352 }
353
354 Static int
355 aue_csr_write_1(sc, reg, aval)
356 struct aue_softc *sc;
357 int reg, aval;
358 {
359 usb_device_request_t req;
360 usbd_status err;
361 int s;
362 uByte val;
363
364 if (sc->aue_dying)
365 return (0);
366
367 val = aval;
368 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
369 req.bRequest = AUE_UR_WRITEREG;
370 USETW(req.wValue, val);
371 USETW(req.wIndex, reg);
372 USETW(req.wLength, 1);
373
374 s = splusb();
375 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
376 splx(s);
377
378 if (err) {
379 DPRINTF(("%s: aue_csr_write_1: reg=0x%x err=%s\n",
380 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
381 return (-1);
382 }
383
384 return (0);
385 }
386
387 Static int
388 aue_csr_write_2(sc, reg, aval)
389 struct aue_softc *sc;
390 int reg, aval;
391 {
392 usb_device_request_t req;
393 usbd_status err;
394 int s;
395 uWord val;
396
397 if (sc->aue_dying)
398 return (0);
399
400 USETW(val, aval);
401 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
402 req.bRequest = AUE_UR_WRITEREG;
403 USETW(req.wValue, aval);
404 USETW(req.wIndex, reg);
405 USETW(req.wLength, 2);
406
407 s = splusb();
408 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
409 splx(s);
410
411 if (err) {
412 DPRINTF(("%s: aue_csr_write_2: reg=0x%x err=%s\n",
413 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
414 return (-1);
415 }
416
417 return (0);
418 }
419
420 /*
421 * Read a word of data stored in the EEPROM at address 'addr.'
422 */
423 Static int
424 aue_eeprom_getword(sc, addr)
425 struct aue_softc *sc;
426 int addr;
427 {
428 int i;
429
430 aue_csr_write_1(sc, AUE_EE_REG, addr);
431 aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ);
432
433 for (i = 0; i < AUE_TIMEOUT; i++) {
434 if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE)
435 break;
436 }
437
438 if (i == AUE_TIMEOUT) {
439 printf("%s: EEPROM read timed out\n",
440 USBDEVNAME(sc->aue_dev));
441 }
442
443 return (aue_csr_read_2(sc, AUE_EE_DATA));
444 }
445
446 /*
447 * Read the MAC from the EEPROM. It's at offset 0.
448 */
449 Static void
450 aue_read_mac(sc, dest)
451 struct aue_softc *sc;
452 u_char *dest;
453 {
454 int i;
455 int off = 0;
456 int word;
457
458 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
459
460 for (i = 0; i < 3; i++) {
461 word = aue_eeprom_getword(sc, off + i);
462 dest[2 * i] = (u_char)word;
463 dest[2 * i + 1] = (u_char)(word >> 8);
464 }
465 }
466
467 Static int
468 aue_miibus_readreg(dev, phy, reg)
469 device_ptr_t dev;
470 int phy, reg;
471 {
472 struct aue_softc *sc = USBGETSOFTC(dev);
473 int i;
474 u_int16_t val;
475
476 /*
477 * The Am79C901 HomePNA PHY actually contains
478 * two transceivers: a 1Mbps HomePNA PHY and a
479 * 10Mbps full/half duplex ethernet PHY with
480 * NWAY autoneg. However in the ADMtek adapter,
481 * only the 1Mbps PHY is actually connected to
482 * anything, so we ignore the 10Mbps one. It
483 * happens to be configured for MII address 3,
484 * so we filter that out.
485 */
486 if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
487 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
488 if (phy != 1)
489 return (0);
490 }
491
492 aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
493 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ);
494
495 for (i = 0; i < AUE_TIMEOUT; i++) {
496 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
497 break;
498 }
499
500 if (i == AUE_TIMEOUT) {
501 printf("%s: MII read timed out\n",
502 USBDEVNAME(sc->aue_dev));
503 }
504
505 val = aue_csr_read_2(sc, AUE_PHY_DATA);
506
507 DPRINTFN(11,("%s: %s: phy=%d reg=%d => 0x%04x\n",
508 USBDEVNAME(sc->aue_dev), __FUNCTION__, phy, reg, val));
509
510 return (val);
511 }
512
513 #if defined(__FreeBSD__)
514 Static int
515 #elif defined(__NetBSD__) || defined(__OpenBSD__)
516 Static void
517 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
518 aue_miibus_writereg(dev, phy, reg, data)
519 device_ptr_t dev;
520 int phy, reg, data;
521 {
522 struct aue_softc *sc = USBGETSOFTC(dev);
523 int i;
524
525 if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
526 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
527 if (phy == 3)
528 #if defined(__FreeBSD__)
529 return (0);
530 #elif defined(__NetBSD__) || defined(__OpenBSD__)
531 return;
532 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
533 }
534
535 DPRINTFN(11,("%s: %s: phy=%d reg=%d data=0x%04x\n",
536 USBDEVNAME(sc->aue_dev), __FUNCTION__, phy, reg, data));
537
538 aue_csr_write_2(sc, AUE_PHY_DATA, data);
539 aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
540 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE);
541
542 for (i = 0; i < AUE_TIMEOUT; i++) {
543 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
544 break;
545 }
546
547 if (i == AUE_TIMEOUT) {
548 printf("%s: MII read timed out\n",
549 USBDEVNAME(sc->aue_dev));
550 }
551
552 #if defined(__FreeBSD__)
553 return (0);
554 #endif
555 }
556
557 Static void
558 aue_miibus_statchg(dev)
559 device_ptr_t dev;
560 {
561 struct aue_softc *sc = USBGETSOFTC(dev);
562 struct mii_data *mii = GET_MII(sc);
563
564 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
565
566 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
567
568 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) {
569 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
570 } else {
571 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
572 }
573
574 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
575 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
576 else
577 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
578
579 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
580
581 /*
582 * Set the LED modes on the LinkSys adapter.
583 * This turns on the 'dual link LED' bin in the auxmode
584 * register of the Broadcom PHY.
585 */
586 if ((sc->aue_vendor == USB_VENDOR_LINKSYS &&
587 sc->aue_product == USB_PRODUCT_LINKSYS_USB100TX) ||
588 (sc->aue_vendor == USB_VENDOR_DLINK &&
589 sc->aue_product == USB_PRODUCT_DLINK_DSB650TX)) {
590 u_int16_t auxmode;
591 auxmode = aue_miibus_readreg(dev, 0, 0x1b);
592 aue_miibus_writereg(dev, 0, 0x1b, auxmode | 0x04);
593 }
594 }
595
596 #define AUE_POLY 0xEDB88320
597 #define AUE_BITS 6
598
599 Static u_int32_t
600 aue_crc(addr)
601 caddr_t addr;
602 {
603 u_int32_t idx, bit, data, crc;
604
605 /* Compute CRC for the address value. */
606 crc = 0xFFFFFFFF; /* initial value */
607
608 for (idx = 0; idx < 6; idx++) {
609 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
610 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? AUE_POLY : 0);
611 }
612
613 return (crc & ((1 << AUE_BITS) - 1));
614 }
615
616 Static void
617 aue_setmulti(sc)
618 struct aue_softc *sc;
619 {
620 struct ifnet *ifp;
621 #if defined(__FreeBSD__)
622 struct ifmultiaddr *ifma;
623 #elif defined(__NetBSD__) || defined(__OpenBSD__)
624 struct ether_multi *enm;
625 struct ether_multistep step;
626 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
627 u_int32_t h = 0, i;
628
629 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
630
631 ifp = GET_IFP(sc);
632
633 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
634 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
635 return;
636 }
637
638 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
639
640 /* first, zot all the existing hash bits */
641 for (i = 0; i < 8; i++)
642 aue_csr_write_1(sc, AUE_MAR0 + i, 0);
643
644 /* now program new ones */
645 #if defined(__FreeBSD__)
646 for (ifma = ifp->if_multiaddrs.lh_first; ifma != NULL;
647 ifma = ifma->ifma_link.le_next) {
648 if (ifma->ifma_addr->sa_family != AF_LINK)
649 continue;
650 h = aue_crc(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
651 AUE_SETBIT(sc, AUE_MAR + (h >> 3), 1 << (h & 0xF));
652 }
653 #elif defined(__NetBSD__) || defined(__OpenBSD__)
654 #if defined(__NetBSD__)
655 ETHER_FIRST_MULTI(step, &sc->aue_ec, enm);
656 #else
657 ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
658 #endif
659 while (enm != NULL) {
660 #if 1
661 if (memcmp(enm->enm_addrlo,
662 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) {
663 ifp->if_flags |= IFF_ALLMULTI;
664 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
665 return;
666 }
667 #endif
668 h = aue_crc(enm->enm_addrlo);
669 AUE_SETBIT(sc, AUE_MAR + (h >> 3), 1 << (h & 0xF));
670 ETHER_NEXT_MULTI(step, enm);
671 }
672 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
673 }
674
675 Static void
676 aue_reset(sc)
677 struct aue_softc *sc;
678 {
679 int i;
680
681 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
682
683 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC);
684
685 for (i = 0; i < AUE_TIMEOUT; i++) {
686 if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC))
687 break;
688 }
689
690 if (i == AUE_TIMEOUT)
691 printf("%s: reset failed\n", USBDEVNAME(sc->aue_dev));
692
693 /*
694 * The PHY(s) attached to the Pegasus chip may be held
695 * in reset until we flip on the GPIO outputs. Make sure
696 * to set the GPIO pins high so that the PHY(s) will
697 * be enabled.
698 *
699 * Note: We force all of the GPIO pins low first, *then*
700 * enable the ones we want.
701 */
702 aue_csr_write_1(sc, AUE_GPIO0,
703 AUE_GPIO_OUT0 | AUE_GPIO_SEL0);
704 aue_csr_write_1(sc, AUE_GPIO0,
705 AUE_GPIO_OUT0 | AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
706
707 /* Grrr. LinkSys has to be different from everyone else. */
708 if ((sc->aue_vendor == USB_VENDOR_LINKSYS &&
709 sc->aue_product == USB_PRODUCT_LINKSYS_USB100TX) ||
710 (sc->aue_vendor == USB_VENDOR_DLINK &&
711 sc->aue_product == USB_PRODUCT_DLINK_DSB650TX)) {
712 aue_csr_write_1(sc, AUE_GPIO0,
713 AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
714 aue_csr_write_1(sc, AUE_GPIO0,
715 AUE_GPIO_SEL0 | AUE_GPIO_SEL1 | AUE_GPIO_OUT0);
716 }
717
718 /* Wait a little while for the chip to get its brains in order. */
719 delay(10000); /* XXX */
720 }
721
722 /*
723 * Probe for a Pegasus chip.
724 */
725 USB_MATCH(aue)
726 {
727 USB_MATCH_START(aue, uaa);
728 struct aue_type *t;
729
730 if (uaa->iface != NULL)
731 return (UMATCH_NONE);
732
733 for (t = aue_devs; t->aue_vid != 0; t++)
734 if (uaa->vendor == t->aue_vid && uaa->product == t->aue_did)
735 return (UMATCH_VENDOR_PRODUCT);
736
737 return (UMATCH_NONE);
738 }
739
740 /*
741 * Attach the interface. Allocate softc structures, do ifmedia
742 * setup and ethernet/BPF attach.
743 */
744 USB_ATTACH(aue)
745 {
746 USB_ATTACH_START(aue, sc, uaa);
747 char devinfo[1024];
748 int s;
749 u_char eaddr[ETHER_ADDR_LEN];
750 struct ifnet *ifp;
751 struct mii_data *mii;
752 usbd_device_handle dev = uaa->device;
753 usbd_interface_handle iface;
754 usbd_status err;
755 usb_interface_descriptor_t *id;
756 usb_endpoint_descriptor_t *ed;
757 int i;
758
759 #ifdef __FreeBSD__
760 bzero(sc, sizeof(struct aue_softc));
761 #endif
762
763 DPRINTFN(5,(" : aue_attach: sc=%p", sc));
764
765 usbd_devinfo(dev, 0, devinfo);
766 USB_ATTACH_SETUP;
767 printf("%s: %s\n", USBDEVNAME(sc->aue_dev), devinfo);
768
769 err = usbd_set_config_no(dev, AUE_CONFIG_NO, 0);
770 if (err) {
771 printf("%s: setting config no failed\n",
772 USBDEVNAME(sc->aue_dev));
773 USB_ATTACH_ERROR_RETURN;
774 }
775
776 err = usbd_device2interface_handle(dev, AUE_IFACE_IDX, &iface);
777 if (err) {
778 printf("%s: getting interface handle failed\n",
779 USBDEVNAME(sc->aue_dev));
780 USB_ATTACH_ERROR_RETURN;
781 }
782
783 sc->aue_udev = dev;
784 sc->aue_iface = iface;
785 sc->aue_product = uaa->product;
786 sc->aue_vendor = uaa->vendor;
787
788 id = usbd_get_interface_descriptor(iface);
789
790 /* Find endpoints. */
791 for (i = 0; i < id->bNumEndpoints; i++) {
792 ed = usbd_interface2endpoint_descriptor(iface, i);
793 if (ed == NULL) {
794 printf("%s: couldn't get endpoint descriptor %d\n",
795 USBDEVNAME(sc->aue_dev), i);
796 USB_ATTACH_ERROR_RETURN;
797 }
798 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
799 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
800 sc->aue_ed[AUE_ENDPT_RX] = ed->bEndpointAddress;
801 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
802 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
803 sc->aue_ed[AUE_ENDPT_TX] = ed->bEndpointAddress;
804 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
805 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
806 sc->aue_ed[AUE_ENDPT_INTR] = ed->bEndpointAddress;
807 }
808 }
809
810 if (sc->aue_ed[AUE_ENDPT_RX] == 0 || sc->aue_ed[AUE_ENDPT_TX] == 0 ||
811 sc->aue_ed[AUE_ENDPT_INTR] == 0) {
812 printf("%s: missing endpoint\n", USBDEVNAME(sc->aue_dev));
813 USB_ATTACH_ERROR_RETURN;
814 }
815
816
817 s = splimp();
818
819 /* Reset the adapter. */
820 aue_reset(sc);
821
822 /*
823 * Get station address from the EEPROM.
824 */
825 aue_read_mac(sc, eaddr);
826
827 /*
828 * A Pegasus chip was detected. Inform the world.
829 */
830 ifp = GET_IFP(sc);
831 #if defined(__FreeBSD__)
832 printf("%s: Ethernet address: %6D\n", USBDEVNAME(sc->aue_dev),
833 eaddr, ":");
834
835 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
836
837 ifp->if_softc = sc;
838 ifp->if_unit = sc->aue_unit;
839 ifp->if_name = "aue";
840 ifp->if_mtu = ETHERMTU;
841 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
842 ifp->if_ioctl = aue_ioctl;
843 ifp->if_output = ether_output;
844 ifp->if_start = aue_start;
845 ifp->if_watchdog = aue_watchdog;
846 ifp->if_init = aue_init;
847 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
848
849 /*
850 * Do MII setup.
851 * NOTE: Doing this causes child devices to be attached to us,
852 * which we would normally disconnect at in the detach routine
853 * using device_delete_child(). However the USB code is set up
854 * such that when this driver is removed, all childred devices
855 * are removed as well. In effect, the USB code ends up detaching
856 * all of our children for us, so we don't have to do is ourselves
857 * in aue_detach(). It's important to point this out since if
858 * we *do* try to detach the child devices ourselves, we will
859 * end up getting the children deleted twice, which will crash
860 * the system.
861 */
862 if (mii_phy_probe(self, &sc->aue_miibus,
863 aue_ifmedia_upd, aue_ifmedia_sts)) {
864 printf("%s: MII without any PHY!\n", USBDEVNAME(sc->aue_dev));
865 splx(s);
866 USB_ATTACH_ERROR_RETURN;
867 }
868
869 aue_qdat.ifp = ifp;
870 aue_qdat.if_rxstart = aue_rxstart;
871
872 /*
873 * Call MI attach routines.
874 */
875 if_attach(ifp);
876 ether_ifattach(ifp);
877 bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header));
878
879 usb_register_netisr();
880
881 #elif defined(__NetBSD__) || defined(__OpenBSD__)
882
883 printf("%s: Ethernet address %s\n", USBDEVNAME(sc->aue_dev),
884 ether_sprintf(eaddr));
885
886 /* Initialize interface info.*/
887 ifp->if_softc = sc;
888 ifp->if_mtu = ETHERMTU;
889 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
890 ifp->if_ioctl = aue_ioctl;
891 ifp->if_start = aue_start;
892 ifp->if_watchdog = aue_watchdog;
893 #if defined(__OpenBSD__)
894 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
895 #endif
896 strncpy(ifp->if_xname, USBDEVNAME(sc->aue_dev), IFNAMSIZ);
897
898 /* Initialize MII/media info. */
899 mii = &sc->aue_mii;
900 mii->mii_ifp = ifp;
901 mii->mii_readreg = aue_miibus_readreg;
902 mii->mii_writereg = aue_miibus_writereg;
903 mii->mii_statchg = aue_miibus_statchg;
904 ifmedia_init(&mii->mii_media, 0, aue_ifmedia_upd, aue_ifmedia_sts);
905 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
906 if (LIST_FIRST(&mii->mii_phys) == NULL) {
907 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
908 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
909 } else
910 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
911
912 /* Attach the interface. */
913 if_attach(ifp);
914 Ether_ifattach(ifp, eaddr);
915
916 #if NBPFILTER > 0
917 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB,
918 sizeof(struct ether_header));
919 #endif
920 #if NRND > 0
921 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->aue_dev),
922 RND_TYPE_NET, 0);
923 #endif
924
925 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
926
927 usb_callout_init(sc->aue_stat_ch);
928
929 sc->aue_attached = 1;
930 splx(s);
931
932 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->aue_udev,
933 USBDEV(sc->aue_dev));
934
935 USB_ATTACH_SUCCESS_RETURN;
936 }
937
938 USB_DETACH(aue)
939 {
940 USB_DETACH_START(aue, sc);
941 struct ifnet *ifp = GET_IFP(sc);
942 int s;
943
944 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
945
946 s = splusb();
947
948 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
949
950 if (!sc->aue_attached) {
951 /* Detached before attached finished, so just bail out. */
952 splx(s);
953 return (0);
954 }
955
956 if (ifp->if_flags & IFF_RUNNING)
957 aue_stop(sc);
958
959 #if defined(__NetBSD__)
960 #if NRND > 0
961 rnd_detach_source(&sc->rnd_source);
962 #endif
963 mii_detach(&sc->aue_mii, MII_PHY_ANY, MII_OFFSET_ANY);
964 ifmedia_delete_instance(&sc->aue_mii.mii_media, IFM_INST_ANY);
965 #if NBPFILTER > 0
966 bpfdetach(ifp);
967 #endif
968 ether_ifdetach(ifp);
969 #endif /* __NetBSD__ */
970
971 if_detach(ifp);
972
973 #ifdef DIAGNOSTIC
974 if (sc->aue_ep[AUE_ENDPT_TX] != NULL ||
975 sc->aue_ep[AUE_ENDPT_RX] != NULL ||
976 sc->aue_ep[AUE_ENDPT_INTR] != NULL)
977 printf("%s: detach has active endpoints\n",
978 USBDEVNAME(sc->aue_dev));
979 #endif
980
981 sc->aue_attached = 0;
982 splx(s);
983
984 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->aue_udev,
985 USBDEV(sc->aue_dev));
986
987 return (0);
988 }
989
990 #if defined(__NetBSD__) || defined(__OpenBSD__)
991 int
992 aue_activate(self, act)
993 device_ptr_t self;
994 enum devact act;
995 {
996 struct aue_softc *sc = (struct aue_softc *)self;
997
998 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
999
1000 switch (act) {
1001 case DVACT_ACTIVATE:
1002 return (EOPNOTSUPP);
1003 break;
1004
1005 case DVACT_DEACTIVATE:
1006 if_deactivate(&sc->aue_ec.ec_if);
1007 sc->aue_dying = 1;
1008 break;
1009 }
1010 return (0);
1011 }
1012 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1013
1014 /*
1015 * Initialize an RX descriptor and attach an MBUF cluster.
1016 */
1017 Static int
1018 aue_newbuf(sc, c, m)
1019 struct aue_softc *sc;
1020 struct aue_chain *c;
1021 struct mbuf *m;
1022 {
1023 struct mbuf *m_new = NULL;
1024
1025 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1026
1027 if (m == NULL) {
1028 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1029 if (m_new == NULL) {
1030 printf("%s: no memory for rx list "
1031 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1032 return (ENOBUFS);
1033 }
1034
1035 MCLGET(m_new, M_DONTWAIT);
1036 if (!(m_new->m_flags & M_EXT)) {
1037 printf("%s: no memory for rx list "
1038 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1039 m_freem(m_new);
1040 return (ENOBUFS);
1041 }
1042 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1043 } else {
1044 m_new = m;
1045 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1046 m_new->m_data = m_new->m_ext.ext_buf;
1047 }
1048
1049 m_adj(m_new, ETHER_ALIGN);
1050 c->aue_mbuf = m_new;
1051
1052 return (0);
1053 }
1054
1055 Static int
1056 aue_rx_list_init(sc)
1057 struct aue_softc *sc;
1058 {
1059 struct aue_cdata *cd;
1060 struct aue_chain *c;
1061 int i;
1062
1063 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1064
1065 cd = &sc->aue_cdata;
1066 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1067 c = &cd->aue_rx_chain[i];
1068 c->aue_sc = sc;
1069 c->aue_idx = i;
1070 if (aue_newbuf(sc, c, NULL) == ENOBUFS)
1071 return (ENOBUFS);
1072 if (c->aue_xfer == NULL) {
1073 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1074 if (c->aue_xfer == NULL)
1075 return (ENOBUFS);
1076 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1077 if (c->aue_buf == NULL)
1078 return (ENOBUFS); /* XXX free xfer */
1079 }
1080 }
1081
1082 return (0);
1083 }
1084
1085 Static int
1086 aue_tx_list_init(sc)
1087 struct aue_softc *sc;
1088 {
1089 struct aue_cdata *cd;
1090 struct aue_chain *c;
1091 int i;
1092
1093 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1094
1095 cd = &sc->aue_cdata;
1096 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1097 c = &cd->aue_tx_chain[i];
1098 c->aue_sc = sc;
1099 c->aue_idx = i;
1100 c->aue_mbuf = NULL;
1101 if (c->aue_xfer == NULL) {
1102 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1103 if (c->aue_xfer == NULL)
1104 return (ENOBUFS);
1105 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1106 if (c->aue_buf == NULL)
1107 return (ENOBUFS);
1108 }
1109 }
1110
1111 return (0);
1112 }
1113
1114 Static void
1115 aue_intr(xfer, priv, status)
1116 usbd_xfer_handle xfer;
1117 usbd_private_handle priv;
1118 usbd_status status;
1119 {
1120 struct aue_softc *sc = priv;
1121 struct ifnet *ifp = GET_IFP(sc);
1122 struct aue_intrpkt *p = &sc->aue_cdata.aue_ibuf;
1123
1124 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1125
1126 if (sc->aue_dying)
1127 return;
1128
1129 if (!(ifp->if_flags & IFF_RUNNING))
1130 return;
1131
1132 if (status != USBD_NORMAL_COMPLETION) {
1133 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1134 return;
1135 }
1136 printf("%s: usb error on intr: %s\n", USBDEVNAME(sc->aue_dev),
1137 usbd_errstr(status));
1138 if (status == USBD_STALLED)
1139 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]);
1140 return;
1141 }
1142
1143 if (p->aue_txstat0)
1144 ifp->if_oerrors++;
1145
1146 if (p->aue_txstat0 & (AUE_TXSTAT0_LATECOLL | AUE_TXSTAT0_EXCESSCOLL))
1147 ifp->if_collisions++;
1148 }
1149
1150 #if defined(__FreeBSD__)
1151 Static void
1152 aue_rxstart(ifp)
1153 struct ifnet *ifp;
1154 {
1155 struct aue_softc *sc;
1156 struct aue_chain *c;
1157
1158 sc = ifp->if_softc;
1159 c = &sc->aue_cdata.aue_rx_chain[sc->aue_cdata.aue_rx_prod];
1160
1161 if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
1162 ifp->if_ierrors++;
1163 return;
1164 }
1165
1166 /* Setup new transfer. */
1167 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
1168 c, mtod(c->aue_mbuf, char *), AUE_BUFSZ, USBD_SHORT_XFER_OK,
1169 USBD_NO_TIMEOUT, aue_rxeof);
1170 usbd_transfer(c->aue_xfer);
1171 }
1172 #endif
1173
1174 /*
1175 * A frame has been uploaded: pass the resulting mbuf chain up to
1176 * the higher level protocols.
1177 *
1178 * Grrr. Receiving transfers larger than about 1152 bytes sometimes
1179 * doesn't work. We get an incomplete frame. In order to avoid
1180 * this, we queue up RX transfers that are shorter than a full sized
1181 * frame. If the received frame is larger than our transfer size,
1182 * we snag the rest of the data using a second transfer. Does this
1183 * hurt performance? Yes. But after fighting with this stupid thing
1184 * for three days, I'm willing to settle. I'd rather have reliable
1185 * receive performance that fast but spotty performance.
1186 */
1187 Static void
1188 aue_rxeof(xfer, priv, status)
1189 usbd_xfer_handle xfer;
1190 usbd_private_handle priv;
1191 usbd_status status;
1192 {
1193 struct aue_chain *c = priv;
1194 struct aue_softc *sc = c->aue_sc;
1195 struct ifnet *ifp = GET_IFP(sc);
1196 struct mbuf *m;
1197 u_int32_t total_len;
1198 struct aue_rxpkt r;
1199 #if defined(__NetBSD__) || defined(__OpenBSD__)
1200 int s;
1201 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1202
1203 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1204
1205 if (sc->aue_dying)
1206 return;
1207
1208 if (!(ifp->if_flags & IFF_RUNNING))
1209 return;
1210
1211 if (status != USBD_NORMAL_COMPLETION) {
1212 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
1213 return;
1214 sc->aue_rx_errs++;
1215 if (usbd_ratecheck(&sc->aue_rx_notice)) {
1216 printf("%s: %u usb errors on rx: %s\n",
1217 USBDEVNAME(sc->aue_dev), sc->aue_rx_errs,
1218 usbd_errstr(status));
1219 sc->aue_rx_errs = 0;
1220 }
1221 if (status == USBD_STALLED)
1222 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]);
1223 goto done;
1224 }
1225
1226 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
1227
1228 memcpy(mtod(c->aue_mbuf, char*), c->aue_buf, total_len);
1229
1230 if (total_len <= 4 + ETHER_CRC_LEN) {
1231 ifp->if_ierrors++;
1232 goto done;
1233 }
1234
1235 memcpy(&r, c->aue_buf + total_len - 4, sizeof(r));
1236
1237 /* Turn off all the non-error bits in the rx status word. */
1238 r.aue_rxstat &= AUE_RXSTAT_MASK;
1239 if (r.aue_rxstat) {
1240 ifp->if_ierrors++;
1241 goto done;
1242 }
1243
1244 /* No errors; receive the packet. */
1245 m = c->aue_mbuf;
1246 total_len -= ETHER_CRC_LEN + 4;
1247 m->m_pkthdr.len = m->m_len = total_len;
1248 ifp->if_ipackets++;
1249
1250 #if defined(__FreeBSD__)
1251 m->m_pkthdr.rcvif = (struct ifnet *)&kue_qdat;
1252 /* Put the packet on the special USB input queue. */
1253 usb_ether_input(m);
1254
1255 return;
1256
1257 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1258 m->m_pkthdr.rcvif = ifp;
1259
1260 s = splimp();
1261
1262 /* XXX ugly */
1263 if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
1264 ifp->if_ierrors++;
1265 goto done1;
1266 }
1267
1268 #if NBPFILTER > 0
1269 /*
1270 * Handle BPF listeners. Let the BPF user see the packet, but
1271 * don't pass it up to the ether_input() layer unless it's
1272 * a broadcast packet, multicast packet, matches our ethernet
1273 * address or the interface is in promiscuous mode.
1274 */
1275 if (ifp->if_bpf) {
1276 #if defined(__NetBSD__)
1277 struct ether_header *eh = mtod(m, struct ether_header *);
1278 BPF_MTAP(ifp, m);
1279 if ((ifp->if_flags & IFF_PROMISC) &&
1280 memcmp(eh->ether_dhost, LLADDR(ifp->if_sadl),
1281 ETHER_ADDR_LEN) &&
1282 !(eh->ether_dhost[0] & 1)) {
1283 m_freem(m);
1284 goto done1;
1285 }
1286 #else
1287 BPF_MTAP(ifp, m);
1288 #endif
1289 }
1290 #endif
1291
1292 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->aue_dev),
1293 __FUNCTION__, m->m_len));
1294 IF_INPUT(ifp, m);
1295 done1:
1296 splx(s);
1297 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1298
1299 done:
1300
1301 /* Setup new transfer. */
1302 usbd_setup_xfer(xfer, sc->aue_ep[AUE_ENDPT_RX],
1303 c, c->aue_buf, AUE_BUFSZ,
1304 USBD_SHORT_XFER_OK | USBD_NO_COPY,
1305 USBD_NO_TIMEOUT, aue_rxeof);
1306 usbd_transfer(xfer);
1307
1308 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->aue_dev),
1309 __FUNCTION__));
1310 }
1311
1312 /*
1313 * A frame was downloaded to the chip. It's safe for us to clean up
1314 * the list buffers.
1315 */
1316
1317 Static void
1318 aue_txeof(xfer, priv, status)
1319 usbd_xfer_handle xfer;
1320 usbd_private_handle priv;
1321 usbd_status status;
1322 {
1323 struct aue_chain *c = priv;
1324 struct aue_softc *sc = c->aue_sc;
1325 struct ifnet *ifp = GET_IFP(sc);
1326 int s;
1327
1328 if (sc->aue_dying)
1329 return;
1330
1331 s = splimp();
1332
1333 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->aue_dev),
1334 __FUNCTION__, status));
1335
1336 ifp->if_timer = 0;
1337 ifp->if_flags &= ~IFF_OACTIVE;
1338
1339 if (status != USBD_NORMAL_COMPLETION) {
1340 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1341 splx(s);
1342 return;
1343 }
1344 ifp->if_oerrors++;
1345 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->aue_dev),
1346 usbd_errstr(status));
1347 if (status == USBD_STALLED)
1348 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_TX]);
1349 splx(s);
1350 return;
1351 }
1352
1353 ifp->if_opackets++;
1354
1355 #if defined(__FreeBSD__)
1356 c->aue_mbuf->m_pkthdr.rcvif = ifp;
1357 usb_tx_done(c->aue_mbuf);
1358 c->aue_mbuf = NULL;
1359 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1360 m_freem(c->aue_mbuf);
1361 c->aue_mbuf = NULL;
1362
1363 if (ifp->if_snd.ifq_head != NULL)
1364 aue_start(ifp);
1365 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1366
1367 splx(s);
1368 }
1369
1370 Static void
1371 aue_tick(xsc)
1372 void *xsc;
1373 {
1374 struct aue_softc *sc = xsc;
1375 struct ifnet *ifp;
1376 struct mii_data *mii;
1377 int s;
1378
1379 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1380
1381 if (sc == NULL)
1382 return;
1383
1384 if (sc->aue_dying)
1385 return;
1386
1387 ifp = GET_IFP(sc);
1388 mii = GET_MII(sc);
1389 if (mii == NULL)
1390 return;
1391
1392 s = splimp();
1393
1394 mii_tick(mii);
1395 if (!sc->aue_link) {
1396 mii_pollstat(mii);
1397 if (mii->mii_media_status & IFM_ACTIVE &&
1398 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
1399 DPRINTFN(2,("%s: %s: got link\n",
1400 USBDEVNAME(sc->aue_dev),__FUNCTION__));
1401 sc->aue_link++;
1402 if (ifp->if_snd.ifq_head != NULL)
1403 aue_start(ifp);
1404 }
1405 }
1406
1407 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1408
1409 splx(s);
1410 }
1411
1412 Static int
1413 aue_send(sc, m, idx)
1414 struct aue_softc *sc;
1415 struct mbuf *m;
1416 int idx;
1417 {
1418 int total_len;
1419 struct aue_chain *c;
1420 usbd_status err;
1421
1422 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1423
1424 c = &sc->aue_cdata.aue_tx_chain[idx];
1425
1426 /*
1427 * Copy the mbuf data into a contiguous buffer, leaving two
1428 * bytes at the beginning to hold the frame length.
1429 */
1430 m_copydata(m, 0, m->m_pkthdr.len, c->aue_buf + 2);
1431 c->aue_mbuf = m;
1432
1433 /*
1434 * The ADMtek documentation says that the packet length is
1435 * supposed to be specified in the first two bytes of the
1436 * transfer, however it actually seems to ignore this info
1437 * and base the frame size on the bulk transfer length.
1438 */
1439 c->aue_buf[0] = (u_int8_t)m->m_pkthdr.len;
1440 c->aue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
1441 total_len = m->m_pkthdr.len + 2;
1442
1443 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_TX],
1444 c, c->aue_buf, total_len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
1445 AUE_TX_TIMEOUT, aue_txeof);
1446
1447 /* Transmit */
1448 err = usbd_transfer(c->aue_xfer);
1449 if (err != USBD_IN_PROGRESS) {
1450 printf("%s: aue_send error=%s\n", USBDEVNAME(sc->aue_dev),
1451 usbd_errstr(err));
1452 aue_stop(sc);
1453 return (EIO);
1454 }
1455 DPRINTFN(5,("%s: %s: send %d bytes\n", USBDEVNAME(sc->aue_dev),
1456 __FUNCTION__, total_len));
1457
1458 sc->aue_cdata.aue_tx_cnt++;
1459
1460 return (0);
1461 }
1462
1463 Static void
1464 aue_start(ifp)
1465 struct ifnet *ifp;
1466 {
1467 struct aue_softc *sc = ifp->if_softc;
1468 struct mbuf *m_head = NULL;
1469
1470 DPRINTFN(5,("%s: %s: enter, link=%d\n", USBDEVNAME(sc->aue_dev),
1471 __FUNCTION__, sc->aue_link));
1472
1473 if (sc->aue_dying)
1474 return;
1475
1476 if (!sc->aue_link)
1477 return;
1478
1479 if (ifp->if_flags & IFF_OACTIVE)
1480 return;
1481
1482 IF_DEQUEUE(&ifp->if_snd, m_head);
1483 if (m_head == NULL)
1484 return;
1485
1486 if (aue_send(sc, m_head, 0)) {
1487 IF_PREPEND(&ifp->if_snd, m_head);
1488 ifp->if_flags |= IFF_OACTIVE;
1489 return;
1490 }
1491
1492 #if NBPFILTER > 0
1493 /*
1494 * If there's a BPF listener, bounce a copy of this frame
1495 * to him.
1496 */
1497 if (ifp->if_bpf)
1498 BPF_MTAP(ifp, m_head);
1499 #endif
1500
1501 ifp->if_flags |= IFF_OACTIVE;
1502
1503 /*
1504 * Set a timeout in case the chip goes out to lunch.
1505 */
1506 ifp->if_timer = 5;
1507 }
1508
1509 Static void
1510 aue_init(xsc)
1511 void *xsc;
1512 {
1513 struct aue_softc *sc = xsc;
1514 struct ifnet *ifp = GET_IFP(sc);
1515 struct mii_data *mii = GET_MII(sc);
1516 int i, s;
1517 u_char *eaddr;
1518
1519 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1520
1521 if (sc->aue_dying)
1522 return;
1523
1524 if (ifp->if_flags & IFF_RUNNING)
1525 return;
1526
1527 s = splimp();
1528
1529 /*
1530 * Cancel pending I/O and free all RX/TX buffers.
1531 */
1532 aue_reset(sc);
1533
1534 #if defined(__FreeBSD__) || defined(__OpenBSD__)
1535 eaddr = sc->arpcom.ac_enaddr;
1536 #elif defined(__NetBSD__)
1537 eaddr = LLADDR(ifp->if_sadl);
1538 #endif /* defined(__NetBSD__) */
1539 for (i = 0; i < ETHER_ADDR_LEN; i++)
1540 aue_csr_write_1(sc, AUE_PAR0 + i, eaddr[i]);
1541
1542 /* If we want promiscuous mode, set the allframes bit. */
1543 if (ifp->if_flags & IFF_PROMISC)
1544 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1545 else
1546 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1547
1548 /* Init TX ring. */
1549 if (aue_tx_list_init(sc) == ENOBUFS) {
1550 printf("%s: tx list init failed\n", USBDEVNAME(sc->aue_dev));
1551 splx(s);
1552 return;
1553 }
1554
1555 /* Init RX ring. */
1556 if (aue_rx_list_init(sc) == ENOBUFS) {
1557 printf("%s: rx list init failed\n", USBDEVNAME(sc->aue_dev));
1558 splx(s);
1559 return;
1560 }
1561
1562 /* Load the multicast filter. */
1563 aue_setmulti(sc);
1564
1565 /* Enable RX and TX */
1566 aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB);
1567 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB);
1568 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR);
1569
1570 mii_mediachg(mii);
1571
1572 if (sc->aue_ep[AUE_ENDPT_RX] == NULL) {
1573 if (aue_openpipes(sc)) {
1574 splx(s);
1575 return;
1576 }
1577 }
1578
1579 ifp->if_flags |= IFF_RUNNING;
1580 ifp->if_flags &= ~IFF_OACTIVE;
1581
1582 splx(s);
1583
1584 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1585 }
1586
1587 Static int
1588 aue_openpipes(sc)
1589 struct aue_softc *sc;
1590 {
1591 struct aue_chain *c;
1592 usbd_status err;
1593 int i;
1594
1595 /* Open RX and TX pipes. */
1596 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_RX],
1597 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_RX]);
1598 if (err) {
1599 printf("%s: open rx pipe failed: %s\n",
1600 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1601 return (EIO);
1602 }
1603 usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_TX],
1604 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_TX]);
1605 if (err) {
1606 printf("%s: open tx pipe failed: %s\n",
1607 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1608 return (EIO);
1609 }
1610 err = usbd_open_pipe_intr(sc->aue_iface, sc->aue_ed[AUE_ENDPT_INTR],
1611 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_INTR], sc,
1612 &sc->aue_cdata.aue_ibuf, AUE_INTR_PKTLEN, aue_intr,
1613 AUE_INTR_INTERVAL);
1614 if (err) {
1615 printf("%s: open intr pipe failed: %s\n",
1616 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1617 return (EIO);
1618 }
1619
1620 /* Start up the receive pipe. */
1621 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1622 c = &sc->aue_cdata.aue_rx_chain[i];
1623 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
1624 c, c->aue_buf, AUE_BUFSZ,
1625 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
1626 aue_rxeof);
1627 (void)usbd_transfer(c->aue_xfer); /* XXX */
1628 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->aue_dev),
1629 __FUNCTION__));
1630
1631 }
1632 return (0);
1633 }
1634
1635 /*
1636 * Set media options.
1637 */
1638 Static int
1639 aue_ifmedia_upd(ifp)
1640 struct ifnet *ifp;
1641 {
1642 struct aue_softc *sc = ifp->if_softc;
1643 struct mii_data *mii = GET_MII(sc);
1644
1645 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1646
1647 if (sc->aue_dying)
1648 return (0);
1649
1650 sc->aue_link = 0;
1651 if (mii->mii_instance) {
1652 struct mii_softc *miisc;
1653 for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL;
1654 miisc = LIST_NEXT(miisc, mii_list))
1655 mii_phy_reset(miisc);
1656 }
1657 mii_mediachg(mii);
1658
1659 return (0);
1660 }
1661
1662 /*
1663 * Report current media status.
1664 */
1665 Static void
1666 aue_ifmedia_sts(ifp, ifmr)
1667 struct ifnet *ifp;
1668 struct ifmediareq *ifmr;
1669 {
1670 struct aue_softc *sc = ifp->if_softc;
1671 struct mii_data *mii = GET_MII(sc);
1672
1673 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1674
1675 mii_pollstat(mii);
1676 ifmr->ifm_active = mii->mii_media_active;
1677 ifmr->ifm_status = mii->mii_media_status;
1678 }
1679
1680 Static int
1681 aue_ioctl(ifp, command, data)
1682 struct ifnet *ifp;
1683 u_long command;
1684 caddr_t data;
1685 {
1686 struct aue_softc *sc = ifp->if_softc;
1687 #if defined(__NetBSD__) || defined(__OpenBSD__)
1688 struct ifaddr *ifa = (struct ifaddr *)data;
1689 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1690 struct ifreq *ifr = (struct ifreq *)data;
1691 struct mii_data *mii;
1692 int s, error = 0;
1693
1694 if (sc->aue_dying)
1695 return (EIO);
1696
1697 s = splimp();
1698
1699 switch(command) {
1700 #if defined(__FreeBSD__)
1701 case SIOCSIFADDR:
1702 case SIOCGIFADDR:
1703 case SIOCSIFMTU:
1704 error = ether_ioctl(ifp, command, data);
1705 break;
1706 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1707 case SIOCSIFADDR:
1708 ifp->if_flags |= IFF_UP;
1709 aue_init(sc);
1710
1711 switch (ifa->ifa_addr->sa_family) {
1712 #ifdef INET
1713 case AF_INET:
1714 #if defined(__NetBSD__)
1715 arp_ifinit(ifp, ifa);
1716 #else
1717 arp_ifinit(&sc->arpcom, ifa);
1718 #endif
1719 break;
1720 #endif /* INET */
1721 #ifdef NS
1722 case AF_NS:
1723 {
1724 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
1725
1726 if (ns_nullhost(*ina))
1727 ina->x_host = *(union ns_host *)
1728 LLADDR(ifp->if_sadl);
1729 else
1730 memcpy(LLADDR(ifp->if_sadl),
1731 ina->x_host.c_host,
1732 ifp->if_addrlen);
1733 break;
1734 }
1735 #endif /* NS */
1736 }
1737 break;
1738
1739 case SIOCSIFMTU:
1740 if (ifr->ifr_mtu > ETHERMTU)
1741 error = EINVAL;
1742 else
1743 ifp->if_mtu = ifr->ifr_mtu;
1744 break;
1745
1746 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1747 case SIOCSIFFLAGS:
1748 if (ifp->if_flags & IFF_UP) {
1749 if (ifp->if_flags & IFF_RUNNING &&
1750 ifp->if_flags & IFF_PROMISC &&
1751 !(sc->aue_if_flags & IFF_PROMISC)) {
1752 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1753 } else if (ifp->if_flags & IFF_RUNNING &&
1754 !(ifp->if_flags & IFF_PROMISC) &&
1755 sc->aue_if_flags & IFF_PROMISC) {
1756 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1757 } else if (!(ifp->if_flags & IFF_RUNNING))
1758 aue_init(sc);
1759 } else {
1760 if (ifp->if_flags & IFF_RUNNING)
1761 aue_stop(sc);
1762 }
1763 sc->aue_if_flags = ifp->if_flags;
1764 error = 0;
1765 break;
1766 case SIOCADDMULTI:
1767 case SIOCDELMULTI:
1768 aue_setmulti(sc);
1769 error = 0;
1770 break;
1771 case SIOCGIFMEDIA:
1772 case SIOCSIFMEDIA:
1773 mii = GET_MII(sc);
1774 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
1775 break;
1776 default:
1777 error = EINVAL;
1778 break;
1779 }
1780
1781 splx(s);
1782
1783 return (error);
1784 }
1785
1786 Static void
1787 aue_watchdog(ifp)
1788 struct ifnet *ifp;
1789 {
1790 struct aue_softc *sc = ifp->if_softc;
1791
1792 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1793
1794 ifp->if_oerrors++;
1795 printf("%s: watchdog timeout\n", USBDEVNAME(sc->aue_dev));
1796
1797 /*
1798 * The polling business is a kludge to avoid allowing the
1799 * USB code to call tsleep() in usbd_delay_ms(), which will
1800 * kill us since the watchdog routine is invoked from
1801 * interrupt context.
1802 */
1803 usbd_set_polling(sc->aue_udev, 1);
1804 aue_stop(sc);
1805 aue_init(sc);
1806 usbd_set_polling(sc->aue_udev, 0);
1807
1808 if (ifp->if_snd.ifq_head != NULL)
1809 aue_start(ifp);
1810 }
1811
1812 /*
1813 * Stop the adapter and free any mbufs allocated to the
1814 * RX and TX lists.
1815 */
1816 Static void
1817 aue_stop(sc)
1818 struct aue_softc *sc;
1819 {
1820 usbd_status err;
1821 struct ifnet *ifp;
1822 int i;
1823
1824 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1825
1826 ifp = GET_IFP(sc);
1827 ifp->if_timer = 0;
1828
1829 aue_csr_write_1(sc, AUE_CTL0, 0);
1830 aue_csr_write_1(sc, AUE_CTL1, 0);
1831 aue_reset(sc);
1832 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
1833
1834 /* Stop transfers. */
1835 if (sc->aue_ep[AUE_ENDPT_RX] != NULL) {
1836 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1837 if (err) {
1838 printf("%s: abort rx pipe failed: %s\n",
1839 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1840 }
1841 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1842 if (err) {
1843 printf("%s: close rx pipe failed: %s\n",
1844 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1845 }
1846 sc->aue_ep[AUE_ENDPT_RX] = NULL;
1847 }
1848
1849 if (sc->aue_ep[AUE_ENDPT_TX] != NULL) {
1850 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1851 if (err) {
1852 printf("%s: abort tx pipe failed: %s\n",
1853 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1854 }
1855 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1856 if (err) {
1857 printf("%s: close tx pipe failed: %s\n",
1858 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1859 }
1860 sc->aue_ep[AUE_ENDPT_TX] = NULL;
1861 }
1862
1863 if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) {
1864 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1865 if (err) {
1866 printf("%s: abort intr pipe failed: %s\n",
1867 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1868 }
1869 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1870 if (err) {
1871 printf("%s: close intr pipe failed: %s\n",
1872 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1873 }
1874 sc->aue_ep[AUE_ENDPT_INTR] = NULL;
1875 }
1876
1877 /* Free RX resources. */
1878 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1879 if (sc->aue_cdata.aue_rx_chain[i].aue_mbuf != NULL) {
1880 m_freem(sc->aue_cdata.aue_rx_chain[i].aue_mbuf);
1881 sc->aue_cdata.aue_rx_chain[i].aue_mbuf = NULL;
1882 }
1883 if (sc->aue_cdata.aue_rx_chain[i].aue_xfer != NULL) {
1884 usbd_free_xfer(sc->aue_cdata.aue_rx_chain[i].aue_xfer);
1885 sc->aue_cdata.aue_rx_chain[i].aue_xfer = NULL;
1886 }
1887 }
1888
1889 /* Free TX resources. */
1890 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1891 if (sc->aue_cdata.aue_tx_chain[i].aue_mbuf != NULL) {
1892 m_freem(sc->aue_cdata.aue_tx_chain[i].aue_mbuf);
1893 sc->aue_cdata.aue_tx_chain[i].aue_mbuf = NULL;
1894 }
1895 if (sc->aue_cdata.aue_tx_chain[i].aue_xfer != NULL) {
1896 usbd_free_xfer(sc->aue_cdata.aue_tx_chain[i].aue_xfer);
1897 sc->aue_cdata.aue_tx_chain[i].aue_xfer = NULL;
1898 }
1899 }
1900
1901 sc->aue_link = 0;
1902
1903 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1904 }
1905
1906 #ifdef __FreeBSD__
1907 /*
1908 * Stop all chip I/O so that the kernel's probe routines don't
1909 * get confused by errant DMAs when rebooting.
1910 */
1911 Static void
1912 aue_shutdown(dev)
1913 device_ptr_t dev;
1914 {
1915 struct aue_softc *sc = USBGETSOFTC(dev);
1916
1917 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1918
1919 aue_reset(sc);
1920 aue_stop(sc);
1921 }
1922 #endif
1923