if_aue.c revision 1.35 1 /* $NetBSD: if_aue.c,v 1.35 2000/03/29 18:24:52 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 strncpy(ifp->if_xname, USBDEVNAME(sc->aue_dev), IFNAMSIZ);
894
895 /* Initialize MII/media info. */
896 mii = &sc->aue_mii;
897 mii->mii_ifp = ifp;
898 mii->mii_readreg = aue_miibus_readreg;
899 mii->mii_writereg = aue_miibus_writereg;
900 mii->mii_statchg = aue_miibus_statchg;
901 ifmedia_init(&mii->mii_media, 0, aue_ifmedia_upd, aue_ifmedia_sts);
902 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
903 if (LIST_FIRST(&mii->mii_phys) == NULL) {
904 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
905 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
906 } else
907 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
908
909 /* Attach the interface. */
910 if_attach(ifp);
911 Ether_ifattach(ifp, eaddr);
912
913 #if NBPFILTER > 0
914 bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB,
915 sizeof(struct ether_header));
916 #endif
917 #if NRND > 0
918 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->aue_dev),
919 RND_TYPE_NET, 0);
920 #endif
921
922 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
923
924 usb_callout_init(sc->aue_stat_ch);
925
926 sc->aue_attached = 1;
927 splx(s);
928
929 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->aue_udev,
930 USBDEV(sc->aue_dev));
931
932 USB_ATTACH_SUCCESS_RETURN;
933 }
934
935 USB_DETACH(aue)
936 {
937 USB_DETACH_START(aue, sc);
938 struct ifnet *ifp = GET_IFP(sc);
939 int s;
940
941 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
942
943 s = splusb();
944
945 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
946
947 if (!sc->aue_attached) {
948 /* Detached before attached finished, so just bail out. */
949 splx(s);
950 return (0);
951 }
952
953 if (ifp->if_flags & IFF_RUNNING)
954 aue_stop(sc);
955
956 #if defined(__NetBSD__)
957 #if NRND > 0
958 rnd_detach_source(&sc->rnd_source);
959 #endif
960 mii_detach(&sc->aue_mii, MII_PHY_ANY, MII_OFFSET_ANY);
961 ifmedia_delete_instance(&sc->aue_mii.mii_media, IFM_INST_ANY);
962 #if NBPFILTER > 0
963 bpfdetach(ifp);
964 #endif
965 ether_ifdetach(ifp);
966 #endif /* __NetBSD__ */
967
968 if_detach(ifp);
969
970 #ifdef DIAGNOSTIC
971 if (sc->aue_ep[AUE_ENDPT_TX] != NULL ||
972 sc->aue_ep[AUE_ENDPT_RX] != NULL ||
973 sc->aue_ep[AUE_ENDPT_INTR] != NULL)
974 printf("%s: detach has active endpoints\n",
975 USBDEVNAME(sc->aue_dev));
976 #endif
977
978 sc->aue_attached = 0;
979 splx(s);
980
981 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->aue_udev,
982 USBDEV(sc->aue_dev));
983
984 return (0);
985 }
986
987 #if defined(__NetBSD__) || defined(__OpenBSD__)
988 int
989 aue_activate(self, act)
990 device_ptr_t self;
991 enum devact act;
992 {
993 struct aue_softc *sc = (struct aue_softc *)self;
994
995 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
996
997 switch (act) {
998 case DVACT_ACTIVATE:
999 return (EOPNOTSUPP);
1000 break;
1001
1002 case DVACT_DEACTIVATE:
1003 if_deactivate(&sc->aue_ec.ec_if);
1004 sc->aue_dying = 1;
1005 break;
1006 }
1007 return (0);
1008 }
1009 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1010
1011 /*
1012 * Initialize an RX descriptor and attach an MBUF cluster.
1013 */
1014 Static int
1015 aue_newbuf(sc, c, m)
1016 struct aue_softc *sc;
1017 struct aue_chain *c;
1018 struct mbuf *m;
1019 {
1020 struct mbuf *m_new = NULL;
1021
1022 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1023
1024 if (m == NULL) {
1025 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1026 if (m_new == NULL) {
1027 printf("%s: no memory for rx list "
1028 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1029 return (ENOBUFS);
1030 }
1031
1032 MCLGET(m_new, M_DONTWAIT);
1033 if (!(m_new->m_flags & M_EXT)) {
1034 printf("%s: no memory for rx list "
1035 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1036 m_freem(m_new);
1037 return (ENOBUFS);
1038 }
1039 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1040 } else {
1041 m_new = m;
1042 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1043 m_new->m_data = m_new->m_ext.ext_buf;
1044 }
1045
1046 m_adj(m_new, ETHER_ALIGN);
1047 c->aue_mbuf = m_new;
1048
1049 return (0);
1050 }
1051
1052 Static int
1053 aue_rx_list_init(sc)
1054 struct aue_softc *sc;
1055 {
1056 struct aue_cdata *cd;
1057 struct aue_chain *c;
1058 int i;
1059
1060 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1061
1062 cd = &sc->aue_cdata;
1063 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1064 c = &cd->aue_rx_chain[i];
1065 c->aue_sc = sc;
1066 c->aue_idx = i;
1067 if (aue_newbuf(sc, c, NULL) == ENOBUFS)
1068 return (ENOBUFS);
1069 if (c->aue_xfer == NULL) {
1070 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1071 if (c->aue_xfer == NULL)
1072 return (ENOBUFS);
1073 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1074 if (c->aue_buf == NULL)
1075 return (ENOBUFS); /* XXX free xfer */
1076 }
1077 }
1078
1079 return (0);
1080 }
1081
1082 Static int
1083 aue_tx_list_init(sc)
1084 struct aue_softc *sc;
1085 {
1086 struct aue_cdata *cd;
1087 struct aue_chain *c;
1088 int i;
1089
1090 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1091
1092 cd = &sc->aue_cdata;
1093 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1094 c = &cd->aue_tx_chain[i];
1095 c->aue_sc = sc;
1096 c->aue_idx = i;
1097 c->aue_mbuf = NULL;
1098 if (c->aue_xfer == NULL) {
1099 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1100 if (c->aue_xfer == NULL)
1101 return (ENOBUFS);
1102 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1103 if (c->aue_buf == NULL)
1104 return (ENOBUFS);
1105 }
1106 }
1107
1108 return (0);
1109 }
1110
1111 Static void
1112 aue_intr(xfer, priv, status)
1113 usbd_xfer_handle xfer;
1114 usbd_private_handle priv;
1115 usbd_status status;
1116 {
1117 struct aue_softc *sc = priv;
1118 struct ifnet *ifp = GET_IFP(sc);
1119 struct aue_intrpkt *p = &sc->aue_cdata.aue_ibuf;
1120
1121 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1122
1123 if (sc->aue_dying)
1124 return;
1125
1126 if (!(ifp->if_flags & IFF_RUNNING))
1127 return;
1128
1129 if (status != USBD_NORMAL_COMPLETION) {
1130 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1131 return;
1132 }
1133 printf("%s: usb error on intr: %s\n", USBDEVNAME(sc->aue_dev),
1134 usbd_errstr(status));
1135 if (status == USBD_STALLED)
1136 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]);
1137 return;
1138 }
1139
1140 if (p->aue_txstat0)
1141 ifp->if_oerrors++;
1142
1143 if (p->aue_txstat0 & (AUE_TXSTAT0_LATECOLL | AUE_TXSTAT0_EXCESSCOLL))
1144 ifp->if_collisions++;
1145 }
1146
1147 #if defined(__FreeBSD__)
1148 Static void
1149 aue_rxstart(ifp)
1150 struct ifnet *ifp;
1151 {
1152 struct aue_softc *sc;
1153 struct aue_chain *c;
1154
1155 sc = ifp->if_softc;
1156 c = &sc->aue_cdata.aue_rx_chain[sc->aue_cdata.aue_rx_prod];
1157
1158 if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
1159 ifp->if_ierrors++;
1160 return;
1161 }
1162
1163 /* Setup new transfer. */
1164 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
1165 c, mtod(c->aue_mbuf, char *), AUE_BUFSZ, USBD_SHORT_XFER_OK,
1166 USBD_NO_TIMEOUT, aue_rxeof);
1167 usbd_transfer(c->aue_xfer);
1168 }
1169 #endif
1170
1171 /*
1172 * A frame has been uploaded: pass the resulting mbuf chain up to
1173 * the higher level protocols.
1174 *
1175 * Grrr. Receiving transfers larger than about 1152 bytes sometimes
1176 * doesn't work. We get an incomplete frame. In order to avoid
1177 * this, we queue up RX transfers that are shorter than a full sized
1178 * frame. If the received frame is larger than our transfer size,
1179 * we snag the rest of the data using a second transfer. Does this
1180 * hurt performance? Yes. But after fighting with this stupid thing
1181 * for three days, I'm willing to settle. I'd rather have reliable
1182 * receive performance that fast but spotty performance.
1183 */
1184 Static void
1185 aue_rxeof(xfer, priv, status)
1186 usbd_xfer_handle xfer;
1187 usbd_private_handle priv;
1188 usbd_status status;
1189 {
1190 struct aue_chain *c = priv;
1191 struct aue_softc *sc = c->aue_sc;
1192 struct ifnet *ifp = GET_IFP(sc);
1193 struct mbuf *m;
1194 u_int32_t total_len;
1195 struct aue_rxpkt r;
1196 #if defined(__NetBSD__) || defined(__OpenBSD__)
1197 int s;
1198 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1199
1200 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1201
1202 if (sc->aue_dying)
1203 return;
1204
1205 if (!(ifp->if_flags & IFF_RUNNING))
1206 return;
1207
1208 if (status != USBD_NORMAL_COMPLETION) {
1209 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
1210 return;
1211 sc->aue_rx_errs++;
1212 if (usbd_ratecheck(&sc->aue_rx_notice)) {
1213 printf("%s: %u usb errors on rx: %s\n",
1214 USBDEVNAME(sc->aue_dev), sc->aue_rx_errs,
1215 usbd_errstr(status));
1216 sc->aue_rx_errs = 0;
1217 }
1218 if (status == USBD_STALLED)
1219 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]);
1220 goto done;
1221 }
1222
1223 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
1224
1225 memcpy(mtod(c->aue_mbuf, char*), c->aue_buf, total_len);
1226
1227 if (total_len <= 4 + ETHER_CRC_LEN) {
1228 ifp->if_ierrors++;
1229 goto done;
1230 }
1231
1232 memcpy(&r, c->aue_buf + total_len - 4, sizeof(r));
1233
1234 /* Turn off all the non-error bits in the rx status word. */
1235 r.aue_rxstat &= AUE_RXSTAT_MASK;
1236 if (r.aue_rxstat) {
1237 ifp->if_ierrors++;
1238 goto done;
1239 }
1240
1241 /* No errors; receive the packet. */
1242 m = c->aue_mbuf;
1243 total_len -= ETHER_CRC_LEN + 4;
1244 m->m_pkthdr.len = m->m_len = total_len;
1245 ifp->if_ipackets++;
1246
1247 #if defined(__FreeBSD__)
1248 m->m_pkthdr.rcvif = (struct ifnet *)&kue_qdat;
1249 /* Put the packet on the special USB input queue. */
1250 usb_ether_input(m);
1251
1252 return;
1253
1254 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1255 m->m_pkthdr.rcvif = ifp;
1256
1257 s = splimp();
1258
1259 /* XXX ugly */
1260 if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
1261 ifp->if_ierrors++;
1262 goto done1;
1263 }
1264
1265 #if NBPFILTER > 0
1266 /*
1267 * Handle BPF listeners. Let the BPF user see the packet, but
1268 * don't pass it up to the ether_input() layer unless it's
1269 * a broadcast packet, multicast packet, matches our ethernet
1270 * address or the interface is in promiscuous mode.
1271 */
1272 if (ifp->if_bpf) {
1273 struct ether_header *eh = mtod(m, struct ether_header *);
1274 BPF_MTAP(ifp, m);
1275 #if defined(__NetBSD__)
1276 if ((ifp->if_flags & IFF_PROMISC) &&
1277 memcmp(eh->ether_dhost, LLADDR(ifp->if_sadl),
1278 ETHER_ADDR_LEN) &&
1279 !(eh->ether_dhost[0] & 1)) {
1280 m_freem(m);
1281 goto done1;
1282 }
1283 #endif
1284 }
1285 #endif
1286
1287 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->aue_dev),
1288 __FUNCTION__, m->m_len));
1289 IF_INPUT(ifp, m);
1290 done1:
1291 splx(s);
1292 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1293
1294 done:
1295
1296 /* Setup new transfer. */
1297 usbd_setup_xfer(xfer, sc->aue_ep[AUE_ENDPT_RX],
1298 c, c->aue_buf, AUE_BUFSZ,
1299 USBD_SHORT_XFER_OK | USBD_NO_COPY,
1300 USBD_NO_TIMEOUT, aue_rxeof);
1301 usbd_transfer(xfer);
1302
1303 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->aue_dev),
1304 __FUNCTION__));
1305 }
1306
1307 /*
1308 * A frame was downloaded to the chip. It's safe for us to clean up
1309 * the list buffers.
1310 */
1311
1312 Static void
1313 aue_txeof(xfer, priv, status)
1314 usbd_xfer_handle xfer;
1315 usbd_private_handle priv;
1316 usbd_status status;
1317 {
1318 struct aue_chain *c = priv;
1319 struct aue_softc *sc = c->aue_sc;
1320 struct ifnet *ifp = GET_IFP(sc);
1321 int s;
1322
1323 if (sc->aue_dying)
1324 return;
1325
1326 s = splimp();
1327
1328 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->aue_dev),
1329 __FUNCTION__, status));
1330
1331 ifp->if_timer = 0;
1332 ifp->if_flags &= ~IFF_OACTIVE;
1333
1334 if (status != USBD_NORMAL_COMPLETION) {
1335 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1336 splx(s);
1337 return;
1338 }
1339 ifp->if_oerrors++;
1340 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->aue_dev),
1341 usbd_errstr(status));
1342 if (status == USBD_STALLED)
1343 usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_TX]);
1344 splx(s);
1345 return;
1346 }
1347
1348 ifp->if_opackets++;
1349
1350 #if defined(__FreeBSD__)
1351 c->aue_mbuf->m_pkthdr.rcvif = ifp;
1352 usb_tx_done(c->aue_mbuf);
1353 c->aue_mbuf = NULL;
1354 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1355 m_freem(c->aue_mbuf);
1356 c->aue_mbuf = NULL;
1357
1358 if (ifp->if_snd.ifq_head != NULL)
1359 aue_start(ifp);
1360 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1361
1362 splx(s);
1363 }
1364
1365 Static void
1366 aue_tick(xsc)
1367 void *xsc;
1368 {
1369 struct aue_softc *sc = xsc;
1370 struct ifnet *ifp;
1371 struct mii_data *mii;
1372 int s;
1373
1374 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1375
1376 if (sc == NULL)
1377 return;
1378
1379 if (sc->aue_dying)
1380 return;
1381
1382 ifp = GET_IFP(sc);
1383 mii = GET_MII(sc);
1384 if (mii == NULL)
1385 return;
1386
1387 s = splimp();
1388
1389 mii_tick(mii);
1390 if (!sc->aue_link) {
1391 mii_pollstat(mii);
1392 if (mii->mii_media_status & IFM_ACTIVE &&
1393 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
1394 DPRINTFN(2,("%s: %s: got link\n",
1395 USBDEVNAME(sc->aue_dev),__FUNCTION__));
1396 sc->aue_link++;
1397 if (ifp->if_snd.ifq_head != NULL)
1398 aue_start(ifp);
1399 }
1400 }
1401
1402 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1403
1404 splx(s);
1405 }
1406
1407 Static int
1408 aue_send(sc, m, idx)
1409 struct aue_softc *sc;
1410 struct mbuf *m;
1411 int idx;
1412 {
1413 int total_len;
1414 struct aue_chain *c;
1415 usbd_status err;
1416
1417 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__FUNCTION__));
1418
1419 c = &sc->aue_cdata.aue_tx_chain[idx];
1420
1421 /*
1422 * Copy the mbuf data into a contiguous buffer, leaving two
1423 * bytes at the beginning to hold the frame length.
1424 */
1425 m_copydata(m, 0, m->m_pkthdr.len, c->aue_buf + 2);
1426 c->aue_mbuf = m;
1427
1428 /*
1429 * The ADMtek documentation says that the packet length is
1430 * supposed to be specified in the first two bytes of the
1431 * transfer, however it actually seems to ignore this info
1432 * and base the frame size on the bulk transfer length.
1433 */
1434 c->aue_buf[0] = (u_int8_t)m->m_pkthdr.len;
1435 c->aue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
1436 total_len = m->m_pkthdr.len + 2;
1437
1438 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_TX],
1439 c, c->aue_buf, total_len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
1440 AUE_TX_TIMEOUT, aue_txeof);
1441
1442 /* Transmit */
1443 err = usbd_transfer(c->aue_xfer);
1444 if (err != USBD_IN_PROGRESS) {
1445 aue_stop(sc);
1446 return (EIO);
1447 }
1448 DPRINTFN(5,("%s: %s: send %d bytes\n", USBDEVNAME(sc->aue_dev),
1449 __FUNCTION__, total_len));
1450
1451 sc->aue_cdata.aue_tx_cnt++;
1452
1453 return (0);
1454 }
1455
1456 Static void
1457 aue_start(ifp)
1458 struct ifnet *ifp;
1459 {
1460 struct aue_softc *sc = ifp->if_softc;
1461 struct mbuf *m_head = NULL;
1462
1463 DPRINTFN(5,("%s: %s: enter, link=%d\n", USBDEVNAME(sc->aue_dev),
1464 __FUNCTION__, sc->aue_link));
1465
1466 if (sc->aue_dying)
1467 return;
1468
1469 if (!sc->aue_link)
1470 return;
1471
1472 if (ifp->if_flags & IFF_OACTIVE)
1473 return;
1474
1475 IF_DEQUEUE(&ifp->if_snd, m_head);
1476 if (m_head == NULL)
1477 return;
1478
1479 if (aue_send(sc, m_head, 0)) {
1480 IF_PREPEND(&ifp->if_snd, m_head);
1481 ifp->if_flags |= IFF_OACTIVE;
1482 return;
1483 }
1484
1485 #if NBPFILTER > 0
1486 /*
1487 * If there's a BPF listener, bounce a copy of this frame
1488 * to him.
1489 */
1490 if (ifp->if_bpf)
1491 BPF_MTAP(ifp, m_head);
1492 #endif
1493
1494 ifp->if_flags |= IFF_OACTIVE;
1495
1496 /*
1497 * Set a timeout in case the chip goes out to lunch.
1498 */
1499 ifp->if_timer = 5;
1500 }
1501
1502 Static void
1503 aue_init(xsc)
1504 void *xsc;
1505 {
1506 struct aue_softc *sc = xsc;
1507 struct ifnet *ifp = GET_IFP(sc);
1508 struct mii_data *mii = GET_MII(sc);
1509 int i, s;
1510 u_char *eaddr;
1511
1512 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1513
1514 if (sc->aue_dying)
1515 return;
1516
1517 if (ifp->if_flags & IFF_RUNNING)
1518 return;
1519
1520 s = splimp();
1521
1522 /*
1523 * Cancel pending I/O and free all RX/TX buffers.
1524 */
1525 aue_reset(sc);
1526
1527 #if defined(__FreeBSD__) || defined(__OpenBSD__)
1528 eaddr = sc->arpcom.ac_enaddr;
1529 #elif defined(__NetBSD__)
1530 eaddr = LLADDR(ifp->if_sadl);
1531 #endif /* defined(__NetBSD__) */
1532 for (i = 0; i < ETHER_ADDR_LEN; i++)
1533 aue_csr_write_1(sc, AUE_PAR0 + i, eaddr[i]);
1534
1535 /* If we want promiscuous mode, set the allframes bit. */
1536 if (ifp->if_flags & IFF_PROMISC)
1537 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1538 else
1539 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1540
1541 /* Init TX ring. */
1542 if (aue_tx_list_init(sc) == ENOBUFS) {
1543 printf("%s: tx list init failed\n", USBDEVNAME(sc->aue_dev));
1544 splx(s);
1545 return;
1546 }
1547
1548 /* Init RX ring. */
1549 if (aue_rx_list_init(sc) == ENOBUFS) {
1550 printf("%s: rx list init failed\n", USBDEVNAME(sc->aue_dev));
1551 splx(s);
1552 return;
1553 }
1554
1555 /* Load the multicast filter. */
1556 aue_setmulti(sc);
1557
1558 /* Enable RX and TX */
1559 aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB);
1560 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB);
1561 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR);
1562
1563 mii_mediachg(mii);
1564
1565 if (sc->aue_ep[AUE_ENDPT_RX] == NULL) {
1566 if (aue_openpipes(sc)) {
1567 splx(s);
1568 return;
1569 }
1570 }
1571
1572 ifp->if_flags |= IFF_RUNNING;
1573 ifp->if_flags &= ~IFF_OACTIVE;
1574
1575 splx(s);
1576
1577 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1578 }
1579
1580 Static int
1581 aue_openpipes(sc)
1582 struct aue_softc *sc;
1583 {
1584 struct aue_chain *c;
1585 usbd_status err;
1586 int i;
1587
1588 /* Open RX and TX pipes. */
1589 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_RX],
1590 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_RX]);
1591 if (err) {
1592 printf("%s: open rx pipe failed: %s\n",
1593 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1594 return (EIO);
1595 }
1596 usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_TX],
1597 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_TX]);
1598 if (err) {
1599 printf("%s: open tx pipe failed: %s\n",
1600 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1601 return (EIO);
1602 }
1603 err = usbd_open_pipe_intr(sc->aue_iface, sc->aue_ed[AUE_ENDPT_INTR],
1604 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_INTR], sc,
1605 &sc->aue_cdata.aue_ibuf, AUE_INTR_PKTLEN, aue_intr,
1606 AUE_INTR_INTERVAL);
1607 if (err) {
1608 printf("%s: open intr pipe failed: %s\n",
1609 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1610 return (EIO);
1611 }
1612
1613 /* Start up the receive pipe. */
1614 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1615 c = &sc->aue_cdata.aue_rx_chain[i];
1616 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
1617 c, c->aue_buf, AUE_BUFSZ,
1618 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
1619 aue_rxeof);
1620 (void)usbd_transfer(c->aue_xfer); /* XXX */
1621 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->aue_dev),
1622 __FUNCTION__));
1623
1624 }
1625 return (0);
1626 }
1627
1628 /*
1629 * Set media options.
1630 */
1631 Static int
1632 aue_ifmedia_upd(ifp)
1633 struct ifnet *ifp;
1634 {
1635 struct aue_softc *sc = ifp->if_softc;
1636 struct mii_data *mii = GET_MII(sc);
1637
1638 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1639
1640 if (sc->aue_dying)
1641 return (0);
1642
1643 sc->aue_link = 0;
1644 if (mii->mii_instance) {
1645 struct mii_softc *miisc;
1646 for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL;
1647 miisc = LIST_NEXT(miisc, mii_list))
1648 mii_phy_reset(miisc);
1649 }
1650 mii_mediachg(mii);
1651
1652 return (0);
1653 }
1654
1655 /*
1656 * Report current media status.
1657 */
1658 Static void
1659 aue_ifmedia_sts(ifp, ifmr)
1660 struct ifnet *ifp;
1661 struct ifmediareq *ifmr;
1662 {
1663 struct aue_softc *sc = ifp->if_softc;
1664 struct mii_data *mii = GET_MII(sc);
1665
1666 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1667
1668 mii_pollstat(mii);
1669 ifmr->ifm_active = mii->mii_media_active;
1670 ifmr->ifm_status = mii->mii_media_status;
1671 }
1672
1673 Static int
1674 aue_ioctl(ifp, command, data)
1675 struct ifnet *ifp;
1676 u_long command;
1677 caddr_t data;
1678 {
1679 struct aue_softc *sc = ifp->if_softc;
1680 #if defined(__NetBSD__) || defined(__OpenBSD__)
1681 struct ifaddr *ifa = (struct ifaddr *)data;
1682 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1683 struct ifreq *ifr = (struct ifreq *)data;
1684 struct mii_data *mii;
1685 int s, error = 0;
1686
1687 if (sc->aue_dying)
1688 return (EIO);
1689
1690 s = splimp();
1691
1692 switch(command) {
1693 #if defined(__FreeBSD__)
1694 case SIOCSIFADDR:
1695 case SIOCGIFADDR:
1696 case SIOCSIFMTU:
1697 error = ether_ioctl(ifp, command, data);
1698 break;
1699 #elif defined(__NetBSD__) || defined(__OpenBSD__)
1700 case SIOCSIFADDR:
1701 ifp->if_flags |= IFF_UP;
1702 aue_init(sc);
1703
1704 switch (ifa->ifa_addr->sa_family) {
1705 #ifdef INET
1706 case AF_INET:
1707 #if defined(__NetBSD__)
1708 arp_ifinit(ifp, ifa);
1709 #else
1710 arp_ifinit(&sc->arpcom, ifa);
1711 #endif
1712 break;
1713 #endif /* INET */
1714 #ifdef NS
1715 case AF_NS:
1716 {
1717 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
1718
1719 if (ns_nullhost(*ina))
1720 ina->x_host = *(union ns_host *)
1721 LLADDR(ifp->if_sadl);
1722 else
1723 memcpy(LLADDR(ifp->if_sadl),
1724 ina->x_host.c_host,
1725 ifp->if_addrlen);
1726 break;
1727 }
1728 #endif /* NS */
1729 }
1730 break;
1731
1732 case SIOCSIFMTU:
1733 if (ifr->ifr_mtu > ETHERMTU)
1734 error = EINVAL;
1735 else
1736 ifp->if_mtu = ifr->ifr_mtu;
1737 break;
1738
1739 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
1740 case SIOCSIFFLAGS:
1741 if (ifp->if_flags & IFF_UP) {
1742 if (ifp->if_flags & IFF_RUNNING &&
1743 ifp->if_flags & IFF_PROMISC &&
1744 !(sc->aue_if_flags & IFF_PROMISC)) {
1745 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1746 } else if (ifp->if_flags & IFF_RUNNING &&
1747 !(ifp->if_flags & IFF_PROMISC) &&
1748 sc->aue_if_flags & IFF_PROMISC) {
1749 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1750 } else if (!(ifp->if_flags & IFF_RUNNING))
1751 aue_init(sc);
1752 } else {
1753 if (ifp->if_flags & IFF_RUNNING)
1754 aue_stop(sc);
1755 }
1756 sc->aue_if_flags = ifp->if_flags;
1757 error = 0;
1758 break;
1759 case SIOCADDMULTI:
1760 case SIOCDELMULTI:
1761 aue_setmulti(sc);
1762 error = 0;
1763 break;
1764 case SIOCGIFMEDIA:
1765 case SIOCSIFMEDIA:
1766 mii = GET_MII(sc);
1767 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
1768 break;
1769 default:
1770 error = EINVAL;
1771 break;
1772 }
1773
1774 splx(s);
1775
1776 return (error);
1777 }
1778
1779 Static void
1780 aue_watchdog(ifp)
1781 struct ifnet *ifp;
1782 {
1783 struct aue_softc *sc = ifp->if_softc;
1784
1785 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1786
1787 ifp->if_oerrors++;
1788 printf("%s: watchdog timeout\n", USBDEVNAME(sc->aue_dev));
1789
1790 /*
1791 * The polling business is a kludge to avoid allowing the
1792 * USB code to call tsleep() in usbd_delay_ms(), which will
1793 * kill us since the watchdog routine is invoked from
1794 * interrupt context.
1795 */
1796 usbd_set_polling(sc->aue_udev, 1);
1797 aue_stop(sc);
1798 aue_init(sc);
1799 usbd_set_polling(sc->aue_udev, 0);
1800
1801 if (ifp->if_snd.ifq_head != NULL)
1802 aue_start(ifp);
1803 }
1804
1805 /*
1806 * Stop the adapter and free any mbufs allocated to the
1807 * RX and TX lists.
1808 */
1809 Static void
1810 aue_stop(sc)
1811 struct aue_softc *sc;
1812 {
1813 usbd_status err;
1814 struct ifnet *ifp;
1815 int i;
1816
1817 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1818
1819 ifp = GET_IFP(sc);
1820 ifp->if_timer = 0;
1821
1822 aue_csr_write_1(sc, AUE_CTL0, 0);
1823 aue_csr_write_1(sc, AUE_CTL1, 0);
1824 aue_reset(sc);
1825 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
1826
1827 /* Stop transfers. */
1828 if (sc->aue_ep[AUE_ENDPT_RX] != NULL) {
1829 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1830 if (err) {
1831 printf("%s: abort rx pipe failed: %s\n",
1832 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1833 }
1834 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1835 if (err) {
1836 printf("%s: close rx pipe failed: %s\n",
1837 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1838 }
1839 sc->aue_ep[AUE_ENDPT_RX] = NULL;
1840 }
1841
1842 if (sc->aue_ep[AUE_ENDPT_TX] != NULL) {
1843 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1844 if (err) {
1845 printf("%s: abort tx pipe failed: %s\n",
1846 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1847 }
1848 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1849 if (err) {
1850 printf("%s: close tx pipe failed: %s\n",
1851 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1852 }
1853 sc->aue_ep[AUE_ENDPT_TX] = NULL;
1854 }
1855
1856 if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) {
1857 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1858 if (err) {
1859 printf("%s: abort intr pipe failed: %s\n",
1860 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1861 }
1862 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1863 if (err) {
1864 printf("%s: close intr pipe failed: %s\n",
1865 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1866 }
1867 sc->aue_ep[AUE_ENDPT_INTR] = NULL;
1868 }
1869
1870 /* Free RX resources. */
1871 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1872 if (sc->aue_cdata.aue_rx_chain[i].aue_mbuf != NULL) {
1873 m_freem(sc->aue_cdata.aue_rx_chain[i].aue_mbuf);
1874 sc->aue_cdata.aue_rx_chain[i].aue_mbuf = NULL;
1875 }
1876 if (sc->aue_cdata.aue_rx_chain[i].aue_xfer != NULL) {
1877 usbd_free_xfer(sc->aue_cdata.aue_rx_chain[i].aue_xfer);
1878 sc->aue_cdata.aue_rx_chain[i].aue_xfer = NULL;
1879 }
1880 }
1881
1882 /* Free TX resources. */
1883 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1884 if (sc->aue_cdata.aue_tx_chain[i].aue_mbuf != NULL) {
1885 m_freem(sc->aue_cdata.aue_tx_chain[i].aue_mbuf);
1886 sc->aue_cdata.aue_tx_chain[i].aue_mbuf = NULL;
1887 }
1888 if (sc->aue_cdata.aue_tx_chain[i].aue_xfer != NULL) {
1889 usbd_free_xfer(sc->aue_cdata.aue_tx_chain[i].aue_xfer);
1890 sc->aue_cdata.aue_tx_chain[i].aue_xfer = NULL;
1891 }
1892 }
1893
1894 sc->aue_link = 0;
1895
1896 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1897 }
1898
1899 #ifdef __FreeBSD__
1900 /*
1901 * Stop all chip I/O so that the kernel's probe routines don't
1902 * get confused by errant DMAs when rebooting.
1903 */
1904 Static void
1905 aue_shutdown(dev)
1906 device_ptr_t dev;
1907 {
1908 struct aue_softc *sc = USBGETSOFTC(dev);
1909
1910 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __FUNCTION__));
1911
1912 aue_reset(sc);
1913 aue_stop(sc);
1914 }
1915 #endif
1916