if_aue.c revision 1.39 1 /* $NetBSD: if_aue.c,v 1.39 2000/04/23 19:03:45 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_LINKSYS, USB_PRODUCT_LINKSYS_USB10TA },
186 { USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUS },
187 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX },
188 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX_PNA },
189 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2202USB },
190 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TX },
191 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTX },
192 { 0, 0 }
193 };
194
195 USB_DECLARE_DRIVER(aue);
196
197 Static int aue_tx_list_init __P((struct aue_softc *));
198 Static int aue_rx_list_init __P((struct aue_softc *));
199 Static int aue_newbuf __P((struct aue_softc *, struct aue_chain *,
200 struct mbuf *));
201 Static int aue_send __P((struct aue_softc *, struct mbuf *, int));
202 Static void aue_intr __P((usbd_xfer_handle,
203 usbd_private_handle, usbd_status));
204 Static void aue_rxeof __P((usbd_xfer_handle,
205 usbd_private_handle, usbd_status));
206 Static void aue_txeof __P((usbd_xfer_handle,
207 usbd_private_handle, usbd_status));
208 Static void aue_tick __P((void *));
209 Static void aue_start __P((struct ifnet *));
210 Static int aue_ioctl __P((struct ifnet *, u_long, caddr_t));
211 Static void aue_init __P((void *));
212 Static void aue_stop __P((struct aue_softc *));
213 Static void aue_watchdog __P((struct ifnet *));
214 #ifdef __FreeBSD__
215 Static void aue_shutdown __P((device_ptr_t));
216 #endif
217 Static int aue_openpipes __P((struct aue_softc *));
218 Static int aue_ifmedia_upd __P((struct ifnet *));
219 Static void aue_ifmedia_sts __P((struct ifnet *, struct ifmediareq *));
220
221 Static int aue_eeprom_getword __P((struct aue_softc *, int));
222 Static void aue_read_mac __P((struct aue_softc *, u_char *));
223 Static int aue_miibus_readreg __P((device_ptr_t, int, int));
224 #if defined(__FreeBSD__)
225 Static int aue_miibus_writereg __P((device_ptr_t, int, int, int));
226 #elif defined(__NetBSD__) || defined(__OpenBSD__)
227 Static void aue_miibus_writereg __P((device_ptr_t, int, int, int));
228 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
229 Static void aue_miibus_statchg __P((device_ptr_t));
230
231 Static void aue_setmulti __P((struct aue_softc *));
232 Static u_int32_t aue_crc __P((caddr_t));
233 Static void aue_reset __P((struct aue_softc *));
234
235 Static int aue_csr_read_1 __P((struct aue_softc *, int));
236 Static int aue_csr_write_1 __P((struct aue_softc *, int, int));
237 Static int aue_csr_read_2 __P((struct aue_softc *, int));
238 Static int aue_csr_write_2 __P((struct aue_softc *, int, int));
239
240 #if defined(__FreeBSD__)
241 #if !defined(lint)
242 static const char rcsid[] =
243 "$FreeBSD: src/sys/dev/usb/if_aue.c,v 1.11 2000/01/14 01:36:14 wpaul Exp $";
244 #endif
245
246 Static void aue_rxstart __P((struct ifnet *));
247
248 Static struct usb_qdat aue_qdat;
249
250 Static device_method_t aue_methods[] = {
251 /* Device interface */
252 DEVMETHOD(device_probe, aue_match),
253 DEVMETHOD(device_attach, aue_attach),
254 DEVMETHOD(device_detach, aue_detach),
255 DEVMETHOD(device_shutdown, aue_shutdown),
256
257 /* bus interface */
258 DEVMETHOD(bus_print_child, bus_generic_print_child),
259 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
260
261 /* MII interface */
262 DEVMETHOD(miibus_readreg, aue_miibus_readreg),
263 DEVMETHOD(miibus_writereg, aue_miibus_writereg),
264 DEVMETHOD(miibus_statchg, aue_miibus_statchg),
265
266 { 0, 0 }
267 };
268
269 Static driver_t aue_driver = {
270 "aue",
271 aue_methods,
272 sizeof(struct aue_softc)
273 };
274
275 Static devclass_t aue_devclass;
276
277 DRIVER_MODULE(if_aue, uhub, aue_driver, aue_devclass, usbd_driver_load, 0);
278 DRIVER_MODULE(miibus, aue, miibus_driver, miibus_devclass, 0, 0);
279
280 #endif /* __FreeBSD__ */
281
282 #define AUE_DO_REQUEST(dev, req, data) \
283 usbd_do_request_flags(dev, req, data, USBD_NO_TSLEEP, NULL)
284
285 #define AUE_SETBIT(sc, reg, x) \
286 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) | (x))
287
288 #define AUE_CLRBIT(sc, reg, x) \
289 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x))
290
291 Static int
292 aue_csr_read_1(sc, reg)
293 struct aue_softc *sc;
294 int reg;
295 {
296 usb_device_request_t req;
297 usbd_status err;
298 uByte val = 0;
299 int s;
300
301 if (sc->aue_dying)
302 return (0);
303
304 req.bmRequestType = UT_READ_VENDOR_DEVICE;
305 req.bRequest = AUE_UR_READREG;
306 USETW(req.wValue, 0);
307 USETW(req.wIndex, reg);
308 USETW(req.wLength, 1);
309
310 s = splusb();
311 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
312 splx(s);
313
314 if (err) {
315 DPRINTF(("%s: aue_csr_read_1: reg=0x%x err=%s\n",
316 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
317 return (0);
318 }
319
320 return (val);
321 }
322
323 Static int
324 aue_csr_read_2(sc, reg)
325 struct aue_softc *sc;
326 int reg;
327 {
328 usb_device_request_t req;
329 usbd_status err;
330 uWord val;
331 int s;
332
333 if (sc->aue_dying)
334 return (0);
335
336 req.bmRequestType = UT_READ_VENDOR_DEVICE;
337 req.bRequest = AUE_UR_READREG;
338 USETW(req.wValue, 0);
339 USETW(req.wIndex, reg);
340 USETW(req.wLength, 2);
341
342 s = splusb();
343 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
344 splx(s);
345
346 if (err) {
347 DPRINTF(("%s: aue_csr_read_2: reg=0x%x err=%s\n",
348 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
349 return (0);
350 }
351
352 return (UGETW(val));
353 }
354
355 Static int
356 aue_csr_write_1(sc, reg, aval)
357 struct aue_softc *sc;
358 int reg, aval;
359 {
360 usb_device_request_t req;
361 usbd_status err;
362 int s;
363 uByte val;
364
365 if (sc->aue_dying)
366 return (0);
367
368 val = aval;
369 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
370 req.bRequest = AUE_UR_WRITEREG;
371 USETW(req.wValue, val);
372 USETW(req.wIndex, reg);
373 USETW(req.wLength, 1);
374
375 s = splusb();
376 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
377 splx(s);
378
379 if (err) {
380 DPRINTF(("%s: aue_csr_write_1: reg=0x%x err=%s\n",
381 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
382 return (-1);
383 }
384
385 return (0);
386 }
387
388 Static int
389 aue_csr_write_2(sc, reg, aval)
390 struct aue_softc *sc;
391 int reg, aval;
392 {
393 usb_device_request_t req;
394 usbd_status err;
395 int s;
396 uWord val;
397
398 if (sc->aue_dying)
399 return (0);
400
401 USETW(val, aval);
402 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
403 req.bRequest = AUE_UR_WRITEREG;
404 USETW(req.wValue, aval);
405 USETW(req.wIndex, reg);
406 USETW(req.wLength, 2);
407
408 s = splusb();
409 err = AUE_DO_REQUEST(sc->aue_udev, &req, &val);
410 splx(s);
411
412 if (err) {
413 DPRINTF(("%s: aue_csr_write_2: reg=0x%x err=%s\n",
414 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
415 return (-1);
416 }
417
418 return (0);
419 }
420
421 /*
422 * Read a word of data stored in the EEPROM at address 'addr.'
423 */
424 Static int
425 aue_eeprom_getword(sc, addr)
426 struct aue_softc *sc;
427 int addr;
428 {
429 int i;
430
431 aue_csr_write_1(sc, AUE_EE_REG, addr);
432 aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ);
433
434 for (i = 0; i < AUE_TIMEOUT; i++) {
435 if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE)
436 break;
437 }
438
439 if (i == AUE_TIMEOUT) {
440 printf("%s: EEPROM read timed out\n",
441 USBDEVNAME(sc->aue_dev));
442 }
443
444 return (aue_csr_read_2(sc, AUE_EE_DATA));
445 }
446
447 /*
448 * Read the MAC from the EEPROM. It's at offset 0.
449 */
450 Static void
451 aue_read_mac(sc, dest)
452 struct aue_softc *sc;
453 u_char *dest;
454 {
455 int i;
456 int off = 0;
457 int word;
458
459 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
460
461 for (i = 0; i < 3; i++) {
462 word = aue_eeprom_getword(sc, off + i);
463 dest[2 * i] = (u_char)word;
464 dest[2 * i + 1] = (u_char)(word >> 8);
465 }
466 }
467
468 Static int
469 aue_miibus_readreg(dev, phy, reg)
470 device_ptr_t dev;
471 int phy, reg;
472 {
473 struct aue_softc *sc = USBGETSOFTC(dev);
474 int i;
475 u_int16_t val;
476
477 /*
478 * The Am79C901 HomePNA PHY actually contains
479 * two transceivers: a 1Mbps HomePNA PHY and a
480 * 10Mbps full/half duplex ethernet PHY with
481 * NWAY autoneg. However in the ADMtek adapter,
482 * only the 1Mbps PHY is actually connected to
483 * anything, so we ignore the 10Mbps one. It
484 * happens to be configured for MII address 3,
485 * so we filter that out.
486 */
487 if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
488 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
489 if (phy != 1)
490 return (0);
491 }
492
493 aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
494 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ);
495
496 for (i = 0; i < AUE_TIMEOUT; i++) {
497 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
498 break;
499 }
500
501 if (i == AUE_TIMEOUT) {
502 printf("%s: MII read timed out\n",
503 USBDEVNAME(sc->aue_dev));
504 }
505
506 val = aue_csr_read_2(sc, AUE_PHY_DATA);
507
508 DPRINTFN(11,("%s: %s: phy=%d reg=%d => 0x%04x\n",
509 USBDEVNAME(sc->aue_dev), __FUNCTION__, phy, reg, val));
510
511 return (val);
512 }
513
514 #if defined(__FreeBSD__)
515 Static int
516 #elif defined(__NetBSD__) || defined(__OpenBSD__)
517 Static void
518 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
519 aue_miibus_writereg(dev, phy, reg, data)
520 device_ptr_t dev;
521 int phy, reg, data;
522 {
523 struct aue_softc *sc = USBGETSOFTC(dev);
524 int i;
525
526 if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
527 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
528 if (phy == 3)
529 #if defined(__FreeBSD__)
530 return (0);
531 #elif defined(__NetBSD__) || defined(__OpenBSD__)
532 return;
533 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
534 }
535
536 DPRINTFN(11,("%s: %s: phy=%d reg=%d data=0x%04x\n",
537 USBDEVNAME(sc->aue_dev), __FUNCTION__, phy, reg, data));
538
539 aue_csr_write_2(sc, AUE_PHY_DATA, data);
540 aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
541 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE);
542
543 for (i = 0; i < AUE_TIMEOUT; i++) {
544 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
545 break;
546 }
547
548 if (i == AUE_TIMEOUT) {
549 printf("%s: MII read timed out\n",
550 USBDEVNAME(sc->aue_dev));
551 }
552
553 #if defined(__FreeBSD__)
554 return (0);
555 #endif
556 }
557
558 Static void
559 aue_miibus_statchg(dev)
560 device_ptr_t dev;
561 {
562 struct aue_softc *sc = USBGETSOFTC(dev);
563 struct mii_data *mii = GET_MII(sc);
564
565 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
566
567 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
568
569 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) {
570 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
571 } else {
572 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
573 }
574
575 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
576 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
577 else
578 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
579
580 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
581
582 /*
583 * Set the LED modes on the LinkSys adapter.
584 * This turns on the 'dual link LED' bin in the auxmode
585 * register of the Broadcom PHY.
586 */
587 if ((sc->aue_vendor == USB_VENDOR_LINKSYS &&
588 (sc->aue_product == USB_PRODUCT_LINKSYS_USB100TX ||
589 sc->aue_product == USB_PRODUCT_LINKSYS_USB10TA)) ||
590 (sc->aue_vendor == USB_VENDOR_DLINK &&
591 sc->aue_product == USB_PRODUCT_DLINK_DSB650TX)) {
592 u_int16_t auxmode;
593 auxmode = aue_miibus_readreg(dev, 0, 0x1b);
594 aue_miibus_writereg(dev, 0, 0x1b, auxmode | 0x04);
595 }
596 }
597
598 #define AUE_POLY 0xEDB88320
599 #define AUE_BITS 6
600
601 Static u_int32_t
602 aue_crc(addr)
603 caddr_t addr;
604 {
605 u_int32_t idx, bit, data, crc;
606
607 /* Compute CRC for the address value. */
608 crc = 0xFFFFFFFF; /* initial value */
609
610 for (idx = 0; idx < 6; idx++) {
611 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
612 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? AUE_POLY : 0);
613 }
614
615 return (crc & ((1 << AUE_BITS) - 1));
616 }
617
618 Static void
619 aue_setmulti(sc)
620 struct aue_softc *sc;
621 {
622 struct ifnet *ifp;
623 #if defined(__FreeBSD__)
624 struct ifmultiaddr *ifma;
625 #elif defined(__NetBSD__) || defined(__OpenBSD__)
626 struct ether_multi *enm;
627 struct ether_multistep step;
628 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
629 u_int32_t h = 0, i;
630
631 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
632
633 ifp = GET_IFP(sc);
634
635 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
636 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
637 return;
638 }
639
640 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
641
642 /* first, zot all the existing hash bits */
643 for (i = 0; i < 8; i++)
644 aue_csr_write_1(sc, AUE_MAR0 + i, 0);
645
646 /* now program new ones */
647 #if defined(__FreeBSD__)
648 for (ifma = ifp->if_multiaddrs.lh_first; ifma != NULL;
649 ifma = ifma->ifma_link.le_next) {
650 if (ifma->ifma_addr->sa_family != AF_LINK)
651 continue;
652 h = aue_crc(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
653 AUE_SETBIT(sc, AUE_MAR + (h >> 3), 1 << (h & 0xF));
654 }
655 #elif defined(__NetBSD__) || defined(__OpenBSD__)
656 #if defined(__NetBSD__)
657 ETHER_FIRST_MULTI(step, &sc->aue_ec, enm);
658 #else
659 ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
660 #endif
661 while (enm != NULL) {
662 #if 1
663 if (memcmp(enm->enm_addrlo,
664 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) {
665 ifp->if_flags |= IFF_ALLMULTI;
666 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
667 return;
668 }
669 #endif
670 h = aue_crc(enm->enm_addrlo);
671 AUE_SETBIT(sc, AUE_MAR + (h >> 3), 1 << (h & 0xF));
672 ETHER_NEXT_MULTI(step, enm);
673 }
674 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
675 }
676
677 Static void
678 aue_reset(sc)
679 struct aue_softc *sc;
680 {
681 int i;
682
683 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
684
685 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC);
686
687 for (i = 0; i < AUE_TIMEOUT; i++) {
688 if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC))
689 break;
690 }
691
692 if (i == AUE_TIMEOUT)
693 printf("%s: reset failed\n", USBDEVNAME(sc->aue_dev));
694
695 /*
696 * The PHY(s) attached to the Pegasus chip may be held
697 * in reset until we flip on the GPIO outputs. Make sure
698 * to set the GPIO pins high so that the PHY(s) will
699 * be enabled.
700 *
701 * Note: We force all of the GPIO pins low first, *then*
702 * enable the ones we want.
703 */
704 aue_csr_write_1(sc, AUE_GPIO0,
705 AUE_GPIO_OUT0 | AUE_GPIO_SEL0);
706 aue_csr_write_1(sc, AUE_GPIO0,
707 AUE_GPIO_OUT0 | AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
708
709 /* Grrr. LinkSys has to be different from everyone else. */
710 if ((sc->aue_vendor == USB_VENDOR_LINKSYS &&
711 (sc->aue_product == USB_PRODUCT_LINKSYS_USB100TX ||
712 sc->aue_product == USB_PRODUCT_LINKSYS_USB10TA)) ||
713 (sc->aue_vendor == USB_VENDOR_DLINK &&
714 sc->aue_product == USB_PRODUCT_DLINK_DSB650TX)) {
715 aue_csr_write_1(sc, AUE_GPIO0,
716 AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
717 aue_csr_write_1(sc, AUE_GPIO0,
718 AUE_GPIO_SEL0 | AUE_GPIO_SEL1 | AUE_GPIO_OUT0);
719 }
720
721 /* Wait a little while for the chip to get its brains in order. */
722 delay(10000); /* XXX */
723 }
724
725 /*
726 * Probe for a Pegasus chip.
727 */
728 USB_MATCH(aue)
729 {
730 USB_MATCH_START(aue, uaa);
731 struct aue_type *t;
732
733 if (uaa->iface != NULL)
734 return (UMATCH_NONE);
735
736 for (t = aue_devs; t->aue_vid != 0; t++)
737 if (uaa->vendor == t->aue_vid && uaa->product == t->aue_did)
738 return (UMATCH_VENDOR_PRODUCT);
739
740 return (UMATCH_NONE);
741 }
742
743 /*
744 * Attach the interface. Allocate softc structures, do ifmedia
745 * setup and ethernet/BPF attach.
746 */
747 USB_ATTACH(aue)
748 {
749 USB_ATTACH_START(aue, sc, uaa);
750 char devinfo[1024];
751 int s;
752 u_char eaddr[ETHER_ADDR_LEN];
753 struct ifnet *ifp;
754 struct mii_data *mii;
755 usbd_device_handle dev = uaa->device;
756 usbd_interface_handle iface;
757 usbd_status err;
758 usb_interface_descriptor_t *id;
759 usb_endpoint_descriptor_t *ed;
760 int i;
761
762 #ifdef __FreeBSD__
763 bzero(sc, sizeof(struct aue_softc));
764 #endif
765
766 DPRINTFN(5,(" : aue_attach: sc=%p", sc));
767
768 usbd_devinfo(dev, 0, devinfo);
769 USB_ATTACH_SETUP;
770 printf("%s: %s\n", USBDEVNAME(sc->aue_dev), devinfo);
771
772 err = usbd_set_config_no(dev, AUE_CONFIG_NO, 0);
773 if (err) {
774 printf("%s: setting config no failed\n",
775 USBDEVNAME(sc->aue_dev));
776 USB_ATTACH_ERROR_RETURN;
777 }
778
779 err = usbd_device2interface_handle(dev, AUE_IFACE_IDX, &iface);
780 if (err) {
781 printf("%s: getting interface handle failed\n",
782 USBDEVNAME(sc->aue_dev));
783 USB_ATTACH_ERROR_RETURN;
784 }
785
786 sc->aue_udev = dev;
787 sc->aue_iface = iface;
788 sc->aue_product = uaa->product;
789 sc->aue_vendor = uaa->vendor;
790
791 id = usbd_get_interface_descriptor(iface);
792
793 /* Find endpoints. */
794 for (i = 0; i < id->bNumEndpoints; i++) {
795 ed = usbd_interface2endpoint_descriptor(iface, i);
796 if (ed == NULL) {
797 printf("%s: couldn't get endpoint descriptor %d\n",
798 USBDEVNAME(sc->aue_dev), i);
799 USB_ATTACH_ERROR_RETURN;
800 }
801 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
802 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
803 sc->aue_ed[AUE_ENDPT_RX] = ed->bEndpointAddress;
804 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
805 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
806 sc->aue_ed[AUE_ENDPT_TX] = ed->bEndpointAddress;
807 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
808 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
809 sc->aue_ed[AUE_ENDPT_INTR] = ed->bEndpointAddress;
810 }
811 }
812
813 if (sc->aue_ed[AUE_ENDPT_RX] == 0 || sc->aue_ed[AUE_ENDPT_TX] == 0 ||
814 sc->aue_ed[AUE_ENDPT_INTR] == 0) {
815 printf("%s: missing endpoint\n", USBDEVNAME(sc->aue_dev));
816 USB_ATTACH_ERROR_RETURN;
817 }
818
819
820 s = splimp();
821
822 /* Reset the adapter. */
823 aue_reset(sc);
824
825 /*
826 * Get station address from the EEPROM.
827 */
828 aue_read_mac(sc, eaddr);
829
830 /*
831 * A Pegasus chip was detected. Inform the world.
832 */
833 ifp = GET_IFP(sc);
834 #if defined(__FreeBSD__)
835 printf("%s: Ethernet address: %6D\n", USBDEVNAME(sc->aue_dev),
836 eaddr, ":");
837
838 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
839
840 ifp->if_softc = sc;
841 ifp->if_unit = sc->aue_unit;
842 ifp->if_name = "aue";
843 ifp->if_mtu = ETHERMTU;
844 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
845 ifp->if_ioctl = aue_ioctl;
846 ifp->if_output = ether_output;
847 ifp->if_start = aue_start;
848 ifp->if_watchdog = aue_watchdog;
849 ifp->if_init = aue_init;
850 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
851
852 /*
853 * Do MII setup.
854 * NOTE: Doing this causes child devices to be attached to us,
855 * which we would normally disconnect at in the detach routine
856 * using device_delete_child(). However the USB code is set up
857 * such that when this driver is removed, all childred devices
858 * are removed as well. In effect, the USB code ends up detaching
859 * all of our children for us, so we don't have to do is ourselves
860 * in aue_detach(). It's important to point this out since if
861 * we *do* try to detach the child devices ourselves, we will
862 * end up getting the children deleted twice, which will crash
863 * the system.
864 */
865 if (mii_phy_probe(self, &sc->aue_miibus,
866 aue_ifmedia_upd, aue_ifmedia_sts)) {
867 printf("%s: MII without any PHY!\n", USBDEVNAME(sc->aue_dev));
868 splx(s);
869 USB_ATTACH_ERROR_RETURN;
870 }
871
872 aue_qdat.ifp = ifp;
873 aue_qdat.if_rxstart = aue_rxstart;
874
875 /*
876 * Call MI attach routines.
877 */
878 if_attach(ifp);
879 ether_ifattach(ifp);
880 bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header));
881
882 usb_register_netisr();
883
884 #elif defined(__NetBSD__) || defined(__OpenBSD__)
885
886 printf("%s: Ethernet address %s\n", USBDEVNAME(sc->aue_dev),
887 ether_sprintf(eaddr));
888
889 /* Initialize interface info.*/
890 ifp->if_softc = sc;
891 ifp->if_mtu = ETHERMTU;
892 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
893 ifp->if_ioctl = aue_ioctl;
894 ifp->if_start = aue_start;
895 ifp->if_watchdog = aue_watchdog;
896 #if defined(__OpenBSD__)
897 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
898 #endif
899 strncpy(ifp->if_xname, USBDEVNAME(sc->aue_dev), IFNAMSIZ);
900
901 /* Initialize MII/media info. */
902 mii = &sc->aue_mii;
903 mii->mii_ifp = ifp;
904 mii->mii_readreg = aue_miibus_readreg;
905 mii->mii_writereg = aue_miibus_writereg;
906 mii->mii_statchg = aue_miibus_statchg;
907 ifmedia_init(&mii->mii_media, 0, aue_ifmedia_upd, aue_ifmedia_sts);
908 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
909 if (LIST_FIRST(&mii->mii_phys) == NULL) {
910 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
911 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
912 } else
913 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
914
915 /* Attach the interface. */
916 if_attach(ifp);
917 Ether_ifattach(ifp, eaddr);
918
919 #if NBPFILTER > 0
920 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB,
921 sizeof(struct ether_header));
922 #endif
923 #if NRND > 0
924 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->aue_dev),
925 RND_TYPE_NET, 0);
926 #endif
927
928 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
929
930 usb_callout_init(sc->aue_stat_ch);
931
932 sc->aue_attached = 1;
933 splx(s);
934
935 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->aue_udev,
936 USBDEV(sc->aue_dev));
937
938 USB_ATTACH_SUCCESS_RETURN;
939 }
940
941 USB_DETACH(aue)
942 {
943 USB_DETACH_START(aue, sc);
944 struct ifnet *ifp = GET_IFP(sc);
945 int s;
946
947 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
948
949 s = splusb();
950
951 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
952
953 if (!sc->aue_attached) {
954 /* Detached before attached finished, so just bail out. */
955 splx(s);
956 return (0);
957 }
958
959 if (ifp->if_flags & IFF_RUNNING)
960 aue_stop(sc);
961
962 #if defined(__NetBSD__)
963 #if NRND > 0
964 rnd_detach_source(&sc->rnd_source);
965 #endif
966 mii_detach(&sc->aue_mii, MII_PHY_ANY, MII_OFFSET_ANY);
967 ifmedia_delete_instance(&sc->aue_mii.mii_media, IFM_INST_ANY);
968 #if NBPFILTER > 0
969 bpfdetach(ifp);
970 #endif
971 ether_ifdetach(ifp);
972 #endif /* __NetBSD__ */
973
974 if_detach(ifp);
975
976 #ifdef DIAGNOSTIC
977 if (sc->aue_ep[AUE_ENDPT_TX] != NULL ||
978 sc->aue_ep[AUE_ENDPT_RX] != NULL ||
979 sc->aue_ep[AUE_ENDPT_INTR] != NULL)
980 printf("%s: detach has active endpoints\n",
981 USBDEVNAME(sc->aue_dev));
982 #endif
983
984 sc->aue_attached = 0;
985 splx(s);
986
987 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->aue_udev,
988 USBDEV(sc->aue_dev));
989
990 return (0);
991 }
992
993 #if defined(__NetBSD__) || defined(__OpenBSD__)
994 int
995 aue_activate(self, act)
996 device_ptr_t self;
997 enum devact act;
998 {
999 struct aue_softc *sc = (struct aue_softc *)self;
1000
1001 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1002
1003 switch (act) {
1004 case DVACT_ACTIVATE:
1005 return (EOPNOTSUPP);
1006 break;
1007
1008 case DVACT_DEACTIVATE:
1009 if_deactivate(&sc->aue_ec.ec_if);
1010 sc->aue_dying = 1;
1011 break;
1012 }
1013 return (0);
1014 }
1015 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1016
1017 /*
1018 * Initialize an RX descriptor and attach an MBUF cluster.
1019 */
1020 Static int
1021 aue_newbuf(sc, c, m)
1022 struct aue_softc *sc;
1023 struct aue_chain *c;
1024 struct mbuf *m;
1025 {
1026 struct mbuf *m_new = NULL;
1027
1028 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1029
1030 if (m == NULL) {
1031 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1032 if (m_new == NULL) {
1033 printf("%s: no memory for rx list "
1034 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1035 return (ENOBUFS);
1036 }
1037
1038 MCLGET(m_new, M_DONTWAIT);
1039 if (!(m_new->m_flags & M_EXT)) {
1040 printf("%s: no memory for rx list "
1041 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1042 m_freem(m_new);
1043 return (ENOBUFS);
1044 }
1045 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1046 } else {
1047 m_new = m;
1048 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1049 m_new->m_data = m_new->m_ext.ext_buf;
1050 }
1051
1052 m_adj(m_new, ETHER_ALIGN);
1053 c->aue_mbuf = m_new;
1054
1055 return (0);
1056 }
1057
1058 Static int
1059 aue_rx_list_init(sc)
1060 struct aue_softc *sc;
1061 {
1062 struct aue_cdata *cd;
1063 struct aue_chain *c;
1064 int i;
1065
1066 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1067
1068 cd = &sc->aue_cdata;
1069 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1070 c = &cd->aue_rx_chain[i];
1071 c->aue_sc = sc;
1072 c->aue_idx = i;
1073 if (aue_newbuf(sc, c, NULL) == ENOBUFS)
1074 return (ENOBUFS);
1075 if (c->aue_xfer == NULL) {
1076 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1077 if (c->aue_xfer == NULL)
1078 return (ENOBUFS);
1079 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1080 if (c->aue_buf == NULL)
1081 return (ENOBUFS); /* XXX free xfer */
1082 }
1083 }
1084
1085 return (0);
1086 }
1087
1088 Static int
1089 aue_tx_list_init(sc)
1090 struct aue_softc *sc;
1091 {
1092 struct aue_cdata *cd;
1093 struct aue_chain *c;
1094 int i;
1095
1096 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1097
1098 cd = &sc->aue_cdata;
1099 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1100 c = &cd->aue_tx_chain[i];
1101 c->aue_sc = sc;
1102 c->aue_idx = i;
1103 c->aue_mbuf = NULL;
1104 if (c->aue_xfer == NULL) {
1105 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1106 if (c->aue_xfer == NULL)
1107 return (ENOBUFS);
1108 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1109 if (c->aue_buf == NULL)
1110 return (ENOBUFS);
1111 }
1112 }
1113
1114 return (0);
1115 }
1116
1117 Static void
1118 aue_intr(xfer, priv, status)
1119 usbd_xfer_handle xfer;
1120 usbd_private_handle priv;
1121 usbd_status status;
1122 {
1123 struct aue_softc *sc = priv;
1124 struct ifnet *ifp = GET_IFP(sc);
1125 struct aue_intrpkt *p = &sc->aue_cdata.aue_ibuf;
1126
1127 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1128
1129 if (sc->aue_dying)
1130 return;
1131
1132 if (!(ifp->if_flags & IFF_RUNNING))
1133 return;
1134
1135 if (status != USBD_NORMAL_COMPLETION) {
1136 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1137 return;
1138 }
1139 sc->aue_intr_errs++;
1140 if (usbd_ratecheck(&sc->aue_rx_notice)) {
1141 printf("%s: %u usb errors on intr: %s\n",
1142 USBDEVNAME(sc->aue_dev), sc->aue_rx_errs,
1143 usbd_errstr(status));
1144 sc->aue_intr_errs = 0;
1145 }
1146 if (status == USBD_STALLED)
1147 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]);
1148 return;
1149 }
1150
1151 if (p->aue_txstat0)
1152 ifp->if_oerrors++;
1153
1154 if (p->aue_txstat0 & (AUE_TXSTAT0_LATECOLL | AUE_TXSTAT0_EXCESSCOLL))
1155 ifp->if_collisions++;
1156 }
1157
1158 #if defined(__FreeBSD__)
1159 Static void
1160 aue_rxstart(ifp)
1161 struct ifnet *ifp;
1162 {
1163 struct aue_softc *sc;
1164 struct aue_chain *c;
1165
1166 sc = ifp->if_softc;
1167 c = &sc->aue_cdata.aue_rx_chain[sc->aue_cdata.aue_rx_prod];
1168
1169 if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
1170 ifp->if_ierrors++;
1171 return;
1172 }
1173
1174 /* Setup new transfer. */
1175 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
1176 c, mtod(c->aue_mbuf, char *), AUE_BUFSZ, USBD_SHORT_XFER_OK,
1177 USBD_NO_TIMEOUT, aue_rxeof);
1178 usbd_transfer(c->aue_xfer);
1179 }
1180 #endif
1181
1182 /*
1183 * A frame has been uploaded: pass the resulting mbuf chain up to
1184 * the higher level protocols.
1185 */
1186 Static void
1187 aue_rxeof(xfer, priv, status)
1188 usbd_xfer_handle xfer;
1189 usbd_private_handle priv;
1190 usbd_status status;
1191 {
1192 struct aue_chain *c = priv;
1193 struct aue_softc *sc = c->aue_sc;
1194 struct ifnet *ifp = GET_IFP(sc);
1195 struct mbuf *m;
1196 u_int32_t total_len;
1197 struct aue_rxpkt r;
1198 #if defined(__NetBSD__) || defined(__OpenBSD__)
1199 int s;
1200 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1201
1202 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1203
1204 if (sc->aue_dying)
1205 return;
1206
1207 if (!(ifp->if_flags & IFF_RUNNING))
1208 return;
1209
1210 if (status != USBD_NORMAL_COMPLETION) {
1211 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
1212 return;
1213 sc->aue_rx_errs++;
1214 if (usbd_ratecheck(&sc->aue_rx_notice)) {
1215 printf("%s: %u usb errors on rx: %s\n",
1216 USBDEVNAME(sc->aue_dev), sc->aue_rx_errs,
1217 usbd_errstr(status));
1218 sc->aue_rx_errs = 0;
1219 }
1220 if (status == USBD_STALLED)
1221 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]);
1222 goto done;
1223 }
1224
1225 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
1226
1227 memcpy(mtod(c->aue_mbuf, char*), c->aue_buf, total_len);
1228
1229 if (total_len <= 4 + ETHER_CRC_LEN) {
1230 ifp->if_ierrors++;
1231 goto done;
1232 }
1233
1234 memcpy(&r, c->aue_buf + total_len - 4, sizeof(r));
1235
1236 /* Turn off all the non-error bits in the rx status word. */
1237 r.aue_rxstat &= AUE_RXSTAT_MASK;
1238 if (r.aue_rxstat) {
1239 ifp->if_ierrors++;
1240 goto done;
1241 }
1242
1243 /* No errors; receive the packet. */
1244 m = c->aue_mbuf;
1245 total_len -= ETHER_CRC_LEN + 4;
1246 m->m_pkthdr.len = m->m_len = total_len;
1247 ifp->if_ipackets++;
1248
1249 #if defined(__FreeBSD__)
1250 m->m_pkthdr.rcvif = (struct ifnet *)&kue_qdat;
1251 /* Put the packet on the special USB input queue. */
1252 usb_ether_input(m);
1253
1254 return;
1255
1256 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1257 m->m_pkthdr.rcvif = ifp;
1258
1259 s = splimp();
1260
1261 /* XXX ugly */
1262 if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
1263 ifp->if_ierrors++;
1264 goto done1;
1265 }
1266
1267 #if NBPFILTER > 0
1268 /*
1269 * Handle BPF listeners. Let the BPF user see the packet, but
1270 * don't pass it up to the ether_input() layer unless it's
1271 * a broadcast packet, multicast packet, matches our ethernet
1272 * address or the interface is in promiscuous mode.
1273 */
1274 if (ifp->if_bpf) {
1275 #if defined(__NetBSD__)
1276 struct ether_header *eh = mtod(m, struct ether_header *);
1277 BPF_MTAP(ifp, m);
1278 if ((ifp->if_flags & IFF_PROMISC) &&
1279 memcmp(eh->ether_dhost, LLADDR(ifp->if_sadl),
1280 ETHER_ADDR_LEN) &&
1281 !(eh->ether_dhost[0] & 1)) {
1282 m_freem(m);
1283 goto done1;
1284 }
1285 #else
1286 BPF_MTAP(ifp, m);
1287 #endif
1288 }
1289 #endif
1290
1291 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->aue_dev),
1292 __FUNCTION__, m->m_len));
1293 IF_INPUT(ifp, m);
1294 done1:
1295 splx(s);
1296 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1297
1298 done:
1299
1300 /* Setup new transfer. */
1301 usbd_setup_xfer(xfer, sc->aue_ep[AUE_ENDPT_RX],
1302 c, c->aue_buf, AUE_BUFSZ,
1303 USBD_SHORT_XFER_OK | USBD_NO_COPY,
1304 USBD_NO_TIMEOUT, aue_rxeof);
1305 usbd_transfer(xfer);
1306
1307 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->aue_dev),
1308 __FUNCTION__));
1309 }
1310
1311 /*
1312 * A frame was downloaded to the chip. It's safe for us to clean up
1313 * the list buffers.
1314 */
1315
1316 Static void
1317 aue_txeof(xfer, priv, status)
1318 usbd_xfer_handle xfer;
1319 usbd_private_handle priv;
1320 usbd_status status;
1321 {
1322 struct aue_chain *c = priv;
1323 struct aue_softc *sc = c->aue_sc;
1324 struct ifnet *ifp = GET_IFP(sc);
1325 int s;
1326
1327 if (sc->aue_dying)
1328 return;
1329
1330 s = splimp();
1331
1332 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->aue_dev),
1333 __FUNCTION__, status));
1334
1335 ifp->if_timer = 0;
1336 ifp->if_flags &= ~IFF_OACTIVE;
1337
1338 if (status != USBD_NORMAL_COMPLETION) {
1339 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1340 splx(s);
1341 return;
1342 }
1343 ifp->if_oerrors++;
1344 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->aue_dev),
1345 usbd_errstr(status));
1346 if (status == USBD_STALLED)
1347 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_TX]);
1348 splx(s);
1349 return;
1350 }
1351
1352 ifp->if_opackets++;
1353
1354 #if defined(__FreeBSD__)
1355 c->aue_mbuf->m_pkthdr.rcvif = ifp;
1356 usb_tx_done(c->aue_mbuf);
1357 c->aue_mbuf = NULL;
1358 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1359 m_freem(c->aue_mbuf);
1360 c->aue_mbuf = NULL;
1361
1362 if (ifp->if_snd.ifq_head != NULL)
1363 aue_start(ifp);
1364 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1365
1366 splx(s);
1367 }
1368
1369 Static void
1370 aue_tick(xsc)
1371 void *xsc;
1372 {
1373 struct aue_softc *sc = xsc;
1374 struct ifnet *ifp;
1375 struct mii_data *mii;
1376 int s;
1377
1378 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1379
1380 if (sc == NULL)
1381 return;
1382
1383 if (sc->aue_dying)
1384 return;
1385
1386 ifp = GET_IFP(sc);
1387 mii = GET_MII(sc);
1388 if (mii == NULL)
1389 return;
1390
1391 s = splimp();
1392
1393 mii_tick(mii);
1394 if (!sc->aue_link) {
1395 mii_pollstat(mii);
1396 if (mii->mii_media_status & IFM_ACTIVE &&
1397 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
1398 DPRINTFN(2,("%s: %s: got link\n",
1399 USBDEVNAME(sc->aue_dev),__FUNCTION__));
1400 sc->aue_link++;
1401 if (ifp->if_snd.ifq_head != NULL)
1402 aue_start(ifp);
1403 }
1404 }
1405
1406 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1407
1408 splx(s);
1409 }
1410
1411 Static int
1412 aue_send(sc, m, idx)
1413 struct aue_softc *sc;
1414 struct mbuf *m;
1415 int idx;
1416 {
1417 int total_len;
1418 struct aue_chain *c;
1419 usbd_status err;
1420
1421 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1422
1423 c = &sc->aue_cdata.aue_tx_chain[idx];
1424
1425 /*
1426 * Copy the mbuf data into a contiguous buffer, leaving two
1427 * bytes at the beginning to hold the frame length.
1428 */
1429 m_copydata(m, 0, m->m_pkthdr.len, c->aue_buf + 2);
1430 c->aue_mbuf = m;
1431
1432 /*
1433 * The ADMtek documentation says that the packet length is
1434 * supposed to be specified in the first two bytes of the
1435 * transfer, however it actually seems to ignore this info
1436 * and base the frame size on the bulk transfer length.
1437 */
1438 c->aue_buf[0] = (u_int8_t)m->m_pkthdr.len;
1439 c->aue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
1440 total_len = m->m_pkthdr.len + 2;
1441
1442 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_TX],
1443 c, c->aue_buf, total_len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
1444 AUE_TX_TIMEOUT, aue_txeof);
1445
1446 /* Transmit */
1447 err = usbd_transfer(c->aue_xfer);
1448 if (err != USBD_IN_PROGRESS) {
1449 printf("%s: aue_send error=%s\n", USBDEVNAME(sc->aue_dev),
1450 usbd_errstr(err));
1451 aue_stop(sc);
1452 return (EIO);
1453 }
1454 DPRINTFN(5,("%s: %s: send %d bytes\n", USBDEVNAME(sc->aue_dev),
1455 __FUNCTION__, total_len));
1456
1457 sc->aue_cdata.aue_tx_cnt++;
1458
1459 return (0);
1460 }
1461
1462 Static void
1463 aue_start(ifp)
1464 struct ifnet *ifp;
1465 {
1466 struct aue_softc *sc = ifp->if_softc;
1467 struct mbuf *m_head = NULL;
1468
1469 DPRINTFN(5,("%s: %s: enter, link=%d\n", USBDEVNAME(sc->aue_dev),
1470 __FUNCTION__, sc->aue_link));
1471
1472 if (sc->aue_dying)
1473 return;
1474
1475 if (!sc->aue_link)
1476 return;
1477
1478 if (ifp->if_flags & IFF_OACTIVE)
1479 return;
1480
1481 IF_DEQUEUE(&ifp->if_snd, m_head);
1482 if (m_head == NULL)
1483 return;
1484
1485 if (aue_send(sc, m_head, 0)) {
1486 IF_PREPEND(&ifp->if_snd, m_head);
1487 ifp->if_flags |= IFF_OACTIVE;
1488 return;
1489 }
1490
1491 #if NBPFILTER > 0
1492 /*
1493 * If there's a BPF listener, bounce a copy of this frame
1494 * to him.
1495 */
1496 if (ifp->if_bpf)
1497 BPF_MTAP(ifp, m_head);
1498 #endif
1499
1500 ifp->if_flags |= IFF_OACTIVE;
1501
1502 /*
1503 * Set a timeout in case the chip goes out to lunch.
1504 */
1505 ifp->if_timer = 5;
1506 }
1507
1508 Static void
1509 aue_init(xsc)
1510 void *xsc;
1511 {
1512 struct aue_softc *sc = xsc;
1513 struct ifnet *ifp = GET_IFP(sc);
1514 struct mii_data *mii = GET_MII(sc);
1515 int i, s;
1516 u_char *eaddr;
1517
1518 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1519
1520 if (sc->aue_dying)
1521 return;
1522
1523 if (ifp->if_flags & IFF_RUNNING)
1524 return;
1525
1526 s = splimp();
1527
1528 /*
1529 * Cancel pending I/O and free all RX/TX buffers.
1530 */
1531 aue_reset(sc);
1532
1533 #if defined(__FreeBSD__) || defined(__OpenBSD__)
1534 eaddr = sc->arpcom.ac_enaddr;
1535 #elif defined(__NetBSD__)
1536 eaddr = LLADDR(ifp->if_sadl);
1537 #endif /* defined(__NetBSD__) */
1538 for (i = 0; i < ETHER_ADDR_LEN; i++)
1539 aue_csr_write_1(sc, AUE_PAR0 + i, eaddr[i]);
1540
1541 /* If we want promiscuous mode, set the allframes bit. */
1542 if (ifp->if_flags & IFF_PROMISC)
1543 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1544 else
1545 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1546
1547 /* Init TX ring. */
1548 if (aue_tx_list_init(sc) == ENOBUFS) {
1549 printf("%s: tx list init failed\n", USBDEVNAME(sc->aue_dev));
1550 splx(s);
1551 return;
1552 }
1553
1554 /* Init RX ring. */
1555 if (aue_rx_list_init(sc) == ENOBUFS) {
1556 printf("%s: rx list init failed\n", USBDEVNAME(sc->aue_dev));
1557 splx(s);
1558 return;
1559 }
1560
1561 /* Load the multicast filter. */
1562 aue_setmulti(sc);
1563
1564 /* Enable RX and TX */
1565 aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB);
1566 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB);
1567 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR);
1568
1569 mii_mediachg(mii);
1570
1571 if (sc->aue_ep[AUE_ENDPT_RX] == NULL) {
1572 if (aue_openpipes(sc)) {
1573 splx(s);
1574 return;
1575 }
1576 }
1577
1578 ifp->if_flags |= IFF_RUNNING;
1579 ifp->if_flags &= ~IFF_OACTIVE;
1580
1581 splx(s);
1582
1583 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1584 }
1585
1586 Static int
1587 aue_openpipes(sc)
1588 struct aue_softc *sc;
1589 {
1590 struct aue_chain *c;
1591 usbd_status err;
1592 int i;
1593
1594 /* Open RX and TX pipes. */
1595 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_RX],
1596 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_RX]);
1597 if (err) {
1598 printf("%s: open rx pipe failed: %s\n",
1599 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1600 return (EIO);
1601 }
1602 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_TX],
1603 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_TX]);
1604 if (err) {
1605 printf("%s: open tx pipe failed: %s\n",
1606 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1607 return (EIO);
1608 }
1609 err = usbd_open_pipe_intr(sc->aue_iface, sc->aue_ed[AUE_ENDPT_INTR],
1610 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_INTR], sc,
1611 &sc->aue_cdata.aue_ibuf, AUE_INTR_PKTLEN, aue_intr,
1612 AUE_INTR_INTERVAL);
1613 if (err) {
1614 printf("%s: open intr pipe failed: %s\n",
1615 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1616 return (EIO);
1617 }
1618
1619 /* Start up the receive pipe. */
1620 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1621 c = &sc->aue_cdata.aue_rx_chain[i];
1622 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
1623 c, c->aue_buf, AUE_BUFSZ,
1624 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
1625 aue_rxeof);
1626 (void)usbd_transfer(c->aue_xfer); /* XXX */
1627 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->aue_dev),
1628 __FUNCTION__));
1629
1630 }
1631 return (0);
1632 }
1633
1634 /*
1635 * Set media options.
1636 */
1637 Static int
1638 aue_ifmedia_upd(ifp)
1639 struct ifnet *ifp;
1640 {
1641 struct aue_softc *sc = ifp->if_softc;
1642 struct mii_data *mii = GET_MII(sc);
1643
1644 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1645
1646 if (sc->aue_dying)
1647 return (0);
1648
1649 sc->aue_link = 0;
1650 if (mii->mii_instance) {
1651 struct mii_softc *miisc;
1652 for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL;
1653 miisc = LIST_NEXT(miisc, mii_list))
1654 mii_phy_reset(miisc);
1655 }
1656 mii_mediachg(mii);
1657
1658 return (0);
1659 }
1660
1661 /*
1662 * Report current media status.
1663 */
1664 Static void
1665 aue_ifmedia_sts(ifp, ifmr)
1666 struct ifnet *ifp;
1667 struct ifmediareq *ifmr;
1668 {
1669 struct aue_softc *sc = ifp->if_softc;
1670 struct mii_data *mii = GET_MII(sc);
1671
1672 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1673
1674 mii_pollstat(mii);
1675 ifmr->ifm_active = mii->mii_media_active;
1676 ifmr->ifm_status = mii->mii_media_status;
1677 }
1678
1679 Static int
1680 aue_ioctl(ifp, command, data)
1681 struct ifnet *ifp;
1682 u_long command;
1683 caddr_t data;
1684 {
1685 struct aue_softc *sc = ifp->if_softc;
1686 #if defined(__NetBSD__) || defined(__OpenBSD__)
1687 struct ifaddr *ifa = (struct ifaddr *)data;
1688 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1689 struct ifreq *ifr = (struct ifreq *)data;
1690 struct mii_data *mii;
1691 int s, error = 0;
1692
1693 if (sc->aue_dying)
1694 return (EIO);
1695
1696 s = splimp();
1697
1698 switch(command) {
1699 #if defined(__FreeBSD__)
1700 case SIOCSIFADDR:
1701 case SIOCGIFADDR:
1702 case SIOCSIFMTU:
1703 error = ether_ioctl(ifp, command, data);
1704 break;
1705 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1706 case SIOCSIFADDR:
1707 ifp->if_flags |= IFF_UP;
1708 aue_init(sc);
1709
1710 switch (ifa->ifa_addr->sa_family) {
1711 #ifdef INET
1712 case AF_INET:
1713 #if defined(__NetBSD__)
1714 arp_ifinit(ifp, ifa);
1715 #else
1716 arp_ifinit(&sc->arpcom, ifa);
1717 #endif
1718 break;
1719 #endif /* INET */
1720 #ifdef NS
1721 case AF_NS:
1722 {
1723 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
1724
1725 if (ns_nullhost(*ina))
1726 ina->x_host = *(union ns_host *)
1727 LLADDR(ifp->if_sadl);
1728 else
1729 memcpy(LLADDR(ifp->if_sadl),
1730 ina->x_host.c_host,
1731 ifp->if_addrlen);
1732 break;
1733 }
1734 #endif /* NS */
1735 }
1736 break;
1737
1738 case SIOCSIFMTU:
1739 if (ifr->ifr_mtu > ETHERMTU)
1740 error = EINVAL;
1741 else
1742 ifp->if_mtu = ifr->ifr_mtu;
1743 break;
1744
1745 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1746 case SIOCSIFFLAGS:
1747 if (ifp->if_flags & IFF_UP) {
1748 if (ifp->if_flags & IFF_RUNNING &&
1749 ifp->if_flags & IFF_PROMISC &&
1750 !(sc->aue_if_flags & IFF_PROMISC)) {
1751 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1752 } else if (ifp->if_flags & IFF_RUNNING &&
1753 !(ifp->if_flags & IFF_PROMISC) &&
1754 sc->aue_if_flags & IFF_PROMISC) {
1755 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1756 } else if (!(ifp->if_flags & IFF_RUNNING))
1757 aue_init(sc);
1758 } else {
1759 if (ifp->if_flags & IFF_RUNNING)
1760 aue_stop(sc);
1761 }
1762 sc->aue_if_flags = ifp->if_flags;
1763 error = 0;
1764 break;
1765 case SIOCADDMULTI:
1766 case SIOCDELMULTI:
1767 aue_setmulti(sc);
1768 error = 0;
1769 break;
1770 case SIOCGIFMEDIA:
1771 case SIOCSIFMEDIA:
1772 mii = GET_MII(sc);
1773 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
1774 break;
1775 default:
1776 error = EINVAL;
1777 break;
1778 }
1779
1780 splx(s);
1781
1782 return (error);
1783 }
1784
1785 Static void
1786 aue_watchdog(ifp)
1787 struct ifnet *ifp;
1788 {
1789 struct aue_softc *sc = ifp->if_softc;
1790
1791 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1792
1793 ifp->if_oerrors++;
1794 printf("%s: watchdog timeout\n", USBDEVNAME(sc->aue_dev));
1795
1796 /*
1797 * The polling business is a kludge to avoid allowing the
1798 * USB code to call tsleep() in usbd_delay_ms(), which will
1799 * kill us since the watchdog routine is invoked from
1800 * interrupt context.
1801 */
1802 usbd_set_polling(sc->aue_udev, 1);
1803 aue_stop(sc);
1804 aue_init(sc);
1805 usbd_set_polling(sc->aue_udev, 0);
1806
1807 if (ifp->if_snd.ifq_head != NULL)
1808 aue_start(ifp);
1809 }
1810
1811 /*
1812 * Stop the adapter and free any mbufs allocated to the
1813 * RX and TX lists.
1814 */
1815 Static void
1816 aue_stop(sc)
1817 struct aue_softc *sc;
1818 {
1819 usbd_status err;
1820 struct ifnet *ifp;
1821 int i;
1822
1823 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1824
1825 ifp = GET_IFP(sc);
1826 ifp->if_timer = 0;
1827
1828 aue_csr_write_1(sc, AUE_CTL0, 0);
1829 aue_csr_write_1(sc, AUE_CTL1, 0);
1830 aue_reset(sc);
1831 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
1832
1833 /* Stop transfers. */
1834 if (sc->aue_ep[AUE_ENDPT_RX] != NULL) {
1835 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1836 if (err) {
1837 printf("%s: abort rx pipe failed: %s\n",
1838 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1839 }
1840 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1841 if (err) {
1842 printf("%s: close rx pipe failed: %s\n",
1843 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1844 }
1845 sc->aue_ep[AUE_ENDPT_RX] = NULL;
1846 }
1847
1848 if (sc->aue_ep[AUE_ENDPT_TX] != NULL) {
1849 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1850 if (err) {
1851 printf("%s: abort tx pipe failed: %s\n",
1852 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1853 }
1854 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1855 if (err) {
1856 printf("%s: close tx pipe failed: %s\n",
1857 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1858 }
1859 sc->aue_ep[AUE_ENDPT_TX] = NULL;
1860 }
1861
1862 if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) {
1863 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1864 if (err) {
1865 printf("%s: abort intr pipe failed: %s\n",
1866 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1867 }
1868 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1869 if (err) {
1870 printf("%s: close intr pipe failed: %s\n",
1871 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1872 }
1873 sc->aue_ep[AUE_ENDPT_INTR] = NULL;
1874 }
1875
1876 /* Free RX resources. */
1877 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1878 if (sc->aue_cdata.aue_rx_chain[i].aue_mbuf != NULL) {
1879 m_freem(sc->aue_cdata.aue_rx_chain[i].aue_mbuf);
1880 sc->aue_cdata.aue_rx_chain[i].aue_mbuf = NULL;
1881 }
1882 if (sc->aue_cdata.aue_rx_chain[i].aue_xfer != NULL) {
1883 usbd_free_xfer(sc->aue_cdata.aue_rx_chain[i].aue_xfer);
1884 sc->aue_cdata.aue_rx_chain[i].aue_xfer = NULL;
1885 }
1886 }
1887
1888 /* Free TX resources. */
1889 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1890 if (sc->aue_cdata.aue_tx_chain[i].aue_mbuf != NULL) {
1891 m_freem(sc->aue_cdata.aue_tx_chain[i].aue_mbuf);
1892 sc->aue_cdata.aue_tx_chain[i].aue_mbuf = NULL;
1893 }
1894 if (sc->aue_cdata.aue_tx_chain[i].aue_xfer != NULL) {
1895 usbd_free_xfer(sc->aue_cdata.aue_tx_chain[i].aue_xfer);
1896 sc->aue_cdata.aue_tx_chain[i].aue_xfer = NULL;
1897 }
1898 }
1899
1900 sc->aue_link = 0;
1901
1902 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1903 }
1904
1905 #ifdef __FreeBSD__
1906 /*
1907 * Stop all chip I/O so that the kernel's probe routines don't
1908 * get confused by errant DMAs when rebooting.
1909 */
1910 Static void
1911 aue_shutdown(dev)
1912 device_ptr_t dev;
1913 {
1914 struct aue_softc *sc = USBGETSOFTC(dev);
1915
1916 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1917
1918 aue_reset(sc);
1919 aue_stop(sc);
1920 }
1921 #endif
1922