if_aue.c revision 1.91.2.6 1 /* $NetBSD: if_aue.c,v 1.91.2.6 2008/02/11 14:59:52 yamt 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 and AN8511 Pegasus II USB to ethernet driver.
38 * Datasheet is available 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 #include <sys/cdefs.h>
80 __KERNEL_RCSID(0, "$NetBSD: if_aue.c,v 1.91.2.6 2008/02/11 14:59:52 yamt Exp $");
81
82 #if defined(__NetBSD__)
83 #include "opt_inet.h"
84 #include "bpfilter.h"
85 #include "rnd.h"
86 #elif defined(__OpenBSD__)
87 #include "bpfilter.h"
88 #endif /* defined(__OpenBSD__) */
89
90 #include <sys/param.h>
91 #include <sys/systm.h>
92 #include <sys/sockio.h>
93 #include <sys/mutex.h>
94 #include <sys/mbuf.h>
95 #include <sys/malloc.h>
96 #include <sys/kernel.h>
97 #include <sys/socket.h>
98 #include <sys/device.h>
99 #if NRND > 0
100 #include <sys/rnd.h>
101 #endif
102
103 #include <net/if.h>
104 #if defined(__NetBSD__)
105 #include <net/if_arp.h>
106 #endif
107 #include <net/if_dl.h>
108 #include <net/if_media.h>
109
110 #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m))
111
112 #if NBPFILTER > 0
113 #include <net/bpf.h>
114 #endif
115
116 #if defined(__NetBSD__)
117 #include <net/if_ether.h>
118 #ifdef INET
119 #include <netinet/in.h>
120 #include <netinet/if_inarp.h>
121 #endif
122 #endif /* defined(__NetBSD__) */
123
124 #if defined(__OpenBSD__)
125 #ifdef INET
126 #include <netinet/in.h>
127 #include <netinet/in_systm.h>
128 #include <netinet/in_var.h>
129 #include <netinet/ip.h>
130 #include <netinet/if_ether.h>
131 #endif
132 #endif /* defined(__OpenBSD__) */
133
134
135 #include <dev/mii/mii.h>
136 #include <dev/mii/miivar.h>
137
138 #include <dev/usb/usb.h>
139 #include <dev/usb/usbdi.h>
140 #include <dev/usb/usbdi_util.h>
141 #include <dev/usb/usbdevs.h>
142
143 #if defined(__NetBSD__)
144 #include <sys/condvar.h>
145 #include <sys/kthread.h>
146 #endif
147
148 #include <dev/usb/if_auereg.h>
149
150 #ifdef AUE_DEBUG
151 #define DPRINTF(x) if (auedebug) logprintf x
152 #define DPRINTFN(n,x) if (auedebug >= (n)) logprintf x
153 int auedebug = 0;
154 #else
155 #define DPRINTF(x)
156 #define DPRINTFN(n,x)
157 #endif
158
159 /*
160 * Various supported device vendors/products.
161 */
162 struct aue_type {
163 struct usb_devno aue_dev;
164 u_int16_t aue_flags;
165 #define LSYS 0x0001 /* use Linksys reset */
166 #define PNA 0x0002 /* has Home PNA */
167 #define PII 0x0004 /* Pegasus II chip */
168 };
169
170 Static const struct aue_type aue_devs[] = {
171 {{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460B}, PII },
172 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX1}, PNA|PII },
173 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX2}, PII },
174 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UFE1000}, LSYS },
175 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX4}, PNA },
176 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX5}, PNA },
177 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX6}, PII },
178 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX7}, PII },
179 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX8}, PII },
180 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX9}, PNA },
181 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX10}, 0 },
182 {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_DSB650TX_PNA}, 0 },
183 {{ USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_USB320_EC}, 0 },
184 {{ USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_SS1001}, PII },
185 {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUS}, PNA },
186 {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII}, PII },
187 {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII_2}, PII },
188 {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII_3}, PII },
189 {{ USB_VENDOR_AEI, USB_PRODUCT_AEI_USBTOLAN}, PII },
190 {{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_USB2LAN}, PII },
191 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB100}, 0 },
192 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBLP100}, PNA },
193 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBEL100}, 0 },
194 {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBE100}, PII },
195 {{ USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_HNE200}, PII },
196 {{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TX}, 0 },
197 {{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXS},PII },
198 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX4}, LSYS|PII },
199 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX1}, LSYS },
200 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX}, LSYS },
201 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX_PNA}, PNA },
202 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX3}, LSYS|PII },
203 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX2}, LSYS|PII },
204 {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650}, 0 },
205 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX0}, 0 },
206 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX1}, LSYS },
207 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX2}, 0 },
208 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX3}, LSYS },
209 {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBLTX}, PII },
210 {{ USB_VENDOR_ELSA, USB_PRODUCT_ELSA_USB2ETHERNET}, 0 },
211 {{ USB_VENDOR_HAWKING, USB_PRODUCT_HAWKING_UF100}, PII },
212 {{ USB_VENDOR_HP, USB_PRODUCT_HP_HN210E}, PII },
213 {{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTX}, 0 },
214 {{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTXS}, PII },
215 {{ USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_KNU101TX}, 0 },
216 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TX1}, LSYS|PII },
217 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T}, LSYS },
218 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB100TX}, LSYS },
219 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB100H1}, LSYS|PNA },
220 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TA}, LSYS },
221 {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TX2}, LSYS|PII },
222 {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUATX1}, 0 },
223 {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUATX5}, 0 },
224 {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUA2TX5}, PII },
225 {{ USB_VENDOR_MICROSOFT, USB_PRODUCT_MICROSOFT_MN110}, PII },
226 {{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA101}, PII },
227 {{ USB_VENDOR_SIEMENS, USB_PRODUCT_SIEMENS_SPEEDSTREAM}, PII },
228 {{ USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTNIC},PII },
229 {{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2202USB}, 0 },
230 {{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2206USB}, PII },
231 {{ USB_VENDOR_SOHOWARE, USB_PRODUCT_SOHOWARE_NUB100}, 0 },
232 };
233 #define aue_lookup(v, p) ((const struct aue_type *)usb_lookup(aue_devs, v, p))
234
235 USB_DECLARE_DRIVER(aue);
236
237 #if defined(__NetBSD__)
238 Static void aue_multithread(void *);
239 #endif
240
241 Static void aue_reset_pegasus_II(struct aue_softc *sc);
242 Static int aue_tx_list_init(struct aue_softc *);
243 Static int aue_rx_list_init(struct aue_softc *);
244 Static int aue_newbuf(struct aue_softc *, struct aue_chain *, struct mbuf *);
245 Static int aue_send(struct aue_softc *, struct mbuf *, int);
246 Static void aue_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
247 Static void aue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
248 Static void aue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
249 Static void aue_tick(void *);
250 Static void aue_tick_task(void *);
251 Static void aue_start(struct ifnet *);
252 Static int aue_ioctl(struct ifnet *, u_long, void *);
253 Static void aue_init(void *);
254 Static void aue_stop(struct aue_softc *);
255 Static void aue_watchdog(struct ifnet *);
256 Static int aue_openpipes(struct aue_softc *);
257 Static int aue_ifmedia_upd(struct ifnet *);
258
259 Static int aue_eeprom_getword(struct aue_softc *, int);
260 Static void aue_read_mac(struct aue_softc *, u_char *);
261 Static int aue_miibus_readreg(device_ptr_t, int, int);
262 Static void aue_miibus_writereg(device_ptr_t, int, int, int);
263 Static void aue_miibus_statchg(device_ptr_t);
264
265 Static void aue_lock_mii(struct aue_softc *);
266 Static void aue_unlock_mii(struct aue_softc *);
267
268 Static void aue_setmulti(struct aue_softc *);
269 Static u_int32_t aue_crc(void *);
270 Static void aue_reset(struct aue_softc *);
271
272 Static int aue_csr_read_1(struct aue_softc *, int);
273 Static int aue_csr_write_1(struct aue_softc *, int, int);
274 Static int aue_csr_read_2(struct aue_softc *, int);
275 Static int aue_csr_write_2(struct aue_softc *, int, int);
276
277 #define AUE_SETBIT(sc, reg, x) \
278 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) | (x))
279
280 #define AUE_CLRBIT(sc, reg, x) \
281 aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x))
282
283 Static int
284 aue_csr_read_1(struct aue_softc *sc, int reg)
285 {
286 usb_device_request_t req;
287 usbd_status err;
288 uByte val = 0;
289
290 if (sc->aue_dying)
291 return (0);
292
293 req.bmRequestType = UT_READ_VENDOR_DEVICE;
294 req.bRequest = AUE_UR_READREG;
295 USETW(req.wValue, 0);
296 USETW(req.wIndex, reg);
297 USETW(req.wLength, 1);
298
299 err = usbd_do_request(sc->aue_udev, &req, &val);
300
301 if (err) {
302 DPRINTF(("%s: aue_csr_read_1: reg=0x%x err=%s\n",
303 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
304 return (0);
305 }
306
307 return (val);
308 }
309
310 Static int
311 aue_csr_read_2(struct aue_softc *sc, int reg)
312 {
313 usb_device_request_t req;
314 usbd_status err;
315 uWord val;
316
317 if (sc->aue_dying)
318 return (0);
319
320 req.bmRequestType = UT_READ_VENDOR_DEVICE;
321 req.bRequest = AUE_UR_READREG;
322 USETW(req.wValue, 0);
323 USETW(req.wIndex, reg);
324 USETW(req.wLength, 2);
325
326 err = usbd_do_request(sc->aue_udev, &req, &val);
327
328 if (err) {
329 DPRINTF(("%s: aue_csr_read_2: reg=0x%x err=%s\n",
330 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
331 return (0);
332 }
333
334 return (UGETW(val));
335 }
336
337 Static int
338 aue_csr_write_1(struct aue_softc *sc, int reg, int aval)
339 {
340 usb_device_request_t req;
341 usbd_status err;
342 uByte val;
343
344 if (sc->aue_dying)
345 return (0);
346
347 val = aval;
348 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
349 req.bRequest = AUE_UR_WRITEREG;
350 USETW(req.wValue, val);
351 USETW(req.wIndex, reg);
352 USETW(req.wLength, 1);
353
354 err = usbd_do_request(sc->aue_udev, &req, &val);
355
356 if (err) {
357 DPRINTF(("%s: aue_csr_write_1: reg=0x%x err=%s\n",
358 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
359 return (-1);
360 }
361
362 return (0);
363 }
364
365 Static int
366 aue_csr_write_2(struct aue_softc *sc, int reg, int aval)
367 {
368 usb_device_request_t req;
369 usbd_status err;
370 uWord val;
371
372 if (sc->aue_dying)
373 return (0);
374
375 USETW(val, aval);
376 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
377 req.bRequest = AUE_UR_WRITEREG;
378 USETW(req.wValue, aval);
379 USETW(req.wIndex, reg);
380 USETW(req.wLength, 2);
381
382 err = usbd_do_request(sc->aue_udev, &req, &val);
383
384 if (err) {
385 DPRINTF(("%s: aue_csr_write_2: reg=0x%x err=%s\n",
386 USBDEVNAME(sc->aue_dev), reg, usbd_errstr(err)));
387 return (-1);
388 }
389
390 return (0);
391 }
392
393 /*
394 * Read a word of data stored in the EEPROM at address 'addr.'
395 */
396 Static int
397 aue_eeprom_getword(struct aue_softc *sc, int addr)
398 {
399 int i;
400
401 aue_csr_write_1(sc, AUE_EE_REG, addr);
402 aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ);
403
404 for (i = 0; i < AUE_TIMEOUT; i++) {
405 if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE)
406 break;
407 }
408
409 if (i == AUE_TIMEOUT) {
410 printf("%s: EEPROM read timed out\n",
411 USBDEVNAME(sc->aue_dev));
412 }
413
414 return (aue_csr_read_2(sc, AUE_EE_DATA));
415 }
416
417 /*
418 * Read the MAC from the EEPROM. It's at offset 0.
419 */
420 Static void
421 aue_read_mac(struct aue_softc *sc, u_char *dest)
422 {
423 int i;
424 int off = 0;
425 int word;
426
427 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
428
429 for (i = 0; i < 3; i++) {
430 word = aue_eeprom_getword(sc, off + i);
431 dest[2 * i] = (u_char)word;
432 dest[2 * i + 1] = (u_char)(word >> 8);
433 }
434 }
435
436 /* Get exclusive access to the MII registers */
437 Static void
438 aue_lock_mii(struct aue_softc *sc)
439 {
440 sc->aue_refcnt++;
441 mutex_enter(&sc->aue_mii_lock);
442 }
443
444 Static void
445 aue_unlock_mii(struct aue_softc *sc)
446 {
447 mutex_exit(&sc->aue_mii_lock);
448 if (--sc->aue_refcnt < 0)
449 usb_detach_wakeup(USBDEV(sc->aue_dev));
450 }
451
452 Static int
453 aue_miibus_readreg(device_ptr_t dev, int phy, int reg)
454 {
455 struct aue_softc *sc = USBGETSOFTC(dev);
456 int i;
457 u_int16_t val;
458
459 if (sc->aue_dying) {
460 #ifdef DIAGNOSTIC
461 printf("%s: dying\n", USBDEVNAME(sc->aue_dev));
462 #endif
463 return 0;
464 }
465
466 #if 0
467 /*
468 * The Am79C901 HomePNA PHY actually contains
469 * two transceivers: a 1Mbps HomePNA PHY and a
470 * 10Mbps full/half duplex ethernet PHY with
471 * NWAY autoneg. However in the ADMtek adapter,
472 * only the 1Mbps PHY is actually connected to
473 * anything, so we ignore the 10Mbps one. It
474 * happens to be configured for MII address 3,
475 * so we filter that out.
476 */
477 if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
478 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
479 if (phy == 3)
480 return (0);
481 }
482 #endif
483
484 aue_lock_mii(sc);
485 aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
486 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ);
487
488 for (i = 0; i < AUE_TIMEOUT; i++) {
489 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
490 break;
491 }
492
493 if (i == AUE_TIMEOUT) {
494 printf("%s: MII read timed out\n", USBDEVNAME(sc->aue_dev));
495 }
496
497 val = aue_csr_read_2(sc, AUE_PHY_DATA);
498
499 DPRINTFN(11,("%s: %s: phy=%d reg=%d => 0x%04x\n",
500 USBDEVNAME(sc->aue_dev), __func__, phy, reg, val));
501
502 aue_unlock_mii(sc);
503 return (val);
504 }
505
506 Static void
507 aue_miibus_writereg(device_ptr_t dev, int phy, int reg, int data)
508 {
509 struct aue_softc *sc = USBGETSOFTC(dev);
510 int i;
511
512 #if 0
513 if (sc->aue_vendor == USB_VENDOR_ADMTEK &&
514 sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) {
515 if (phy == 3)
516 return;
517 }
518 #endif
519
520 DPRINTFN(11,("%s: %s: phy=%d reg=%d data=0x%04x\n",
521 USBDEVNAME(sc->aue_dev), __func__, phy, reg, data));
522
523 aue_lock_mii(sc);
524 aue_csr_write_2(sc, AUE_PHY_DATA, data);
525 aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
526 aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE);
527
528 for (i = 0; i < AUE_TIMEOUT; i++) {
529 if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
530 break;
531 }
532
533 if (i == AUE_TIMEOUT) {
534 printf("%s: MII read timed out\n",
535 USBDEVNAME(sc->aue_dev));
536 }
537 aue_unlock_mii(sc);
538 }
539
540 Static void
541 aue_miibus_statchg(device_ptr_t dev)
542 {
543 struct aue_softc *sc = USBGETSOFTC(dev);
544 struct mii_data *mii = GET_MII(sc);
545
546 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
547
548 aue_lock_mii(sc);
549 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
550
551 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) {
552 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
553 } else {
554 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
555 }
556
557 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
558 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
559 else
560 AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
561
562 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB);
563 aue_unlock_mii(sc);
564
565 /*
566 * Set the LED modes on the LinkSys adapter.
567 * This turns on the 'dual link LED' bin in the auxmode
568 * register of the Broadcom PHY.
569 */
570 if (!sc->aue_dying && (sc->aue_flags & LSYS)) {
571 u_int16_t auxmode;
572 auxmode = aue_miibus_readreg(dev, 0, 0x1b);
573 aue_miibus_writereg(dev, 0, 0x1b, auxmode | 0x04);
574 }
575 DPRINTFN(5,("%s: %s: exit\n", USBDEVNAME(sc->aue_dev), __func__));
576 }
577
578 #define AUE_POLY 0xEDB88320
579 #define AUE_BITS 6
580
581 Static u_int32_t
582 aue_crc(void *addrv)
583 {
584 u_int32_t idx, bit, data, crc;
585 char *addr = addrv;
586
587 /* Compute CRC for the address value. */
588 crc = 0xFFFFFFFF; /* initial value */
589
590 for (idx = 0; idx < 6; idx++) {
591 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
592 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? AUE_POLY : 0);
593 }
594
595 return (crc & ((1 << AUE_BITS) - 1));
596 }
597
598 Static void
599 aue_setmulti(struct aue_softc *sc)
600 {
601 struct ifnet *ifp;
602 struct ether_multi *enm;
603 struct ether_multistep step;
604 u_int32_t h = 0, i;
605
606 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
607
608 ifp = GET_IFP(sc);
609
610 if (ifp->if_flags & IFF_PROMISC) {
611 allmulti:
612 ifp->if_flags |= IFF_ALLMULTI;
613 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
614 return;
615 }
616
617 AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
618
619 /* first, zot all the existing hash bits */
620 for (i = 0; i < 8; i++)
621 aue_csr_write_1(sc, AUE_MAR0 + i, 0);
622
623 /* now program new ones */
624 #if defined(__NetBSD__)
625 ETHER_FIRST_MULTI(step, &sc->aue_ec, enm);
626 #else
627 ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
628 #endif
629 while (enm != NULL) {
630 if (memcmp(enm->enm_addrlo,
631 enm->enm_addrhi, ETHER_ADDR_LEN) != 0)
632 goto allmulti;
633
634 h = aue_crc(enm->enm_addrlo);
635 AUE_SETBIT(sc, AUE_MAR + (h >> 3), 1 << (h & 0x7));
636 ETHER_NEXT_MULTI(step, enm);
637 }
638
639 ifp->if_flags &= ~IFF_ALLMULTI;
640 }
641
642 Static void
643 aue_reset_pegasus_II(struct aue_softc *sc)
644 {
645 /* Magic constants taken from Linux driver. */
646 aue_csr_write_1(sc, AUE_REG_1D, 0);
647 aue_csr_write_1(sc, AUE_REG_7B, 2);
648 #if 0
649 if ((sc->aue_flags & HAS_HOME_PNA) && mii_mode)
650 aue_csr_write_1(sc, AUE_REG_81, 6);
651 else
652 #endif
653 aue_csr_write_1(sc, AUE_REG_81, 2);
654 }
655
656 Static void
657 aue_reset(struct aue_softc *sc)
658 {
659 int i;
660
661 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
662
663 AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC);
664
665 for (i = 0; i < AUE_TIMEOUT; i++) {
666 if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC))
667 break;
668 }
669
670 if (i == AUE_TIMEOUT)
671 printf("%s: reset failed\n", USBDEVNAME(sc->aue_dev));
672
673 #if 0
674 /* XXX what is mii_mode supposed to be */
675 if (sc->aue_mii_mode && (sc->aue_flags & PNA))
676 aue_csr_write_1(sc, AUE_GPIO1, 0x34);
677 else
678 aue_csr_write_1(sc, AUE_GPIO1, 0x26);
679 #endif
680
681 /*
682 * The PHY(s) attached to the Pegasus chip may be held
683 * in reset until we flip on the GPIO outputs. Make sure
684 * to set the GPIO pins high so that the PHY(s) will
685 * be enabled.
686 *
687 * Note: We force all of the GPIO pins low first, *then*
688 * enable the ones we want.
689 */
690 if (sc->aue_flags & LSYS) {
691 /* Grrr. LinkSys has to be different from everyone else. */
692 aue_csr_write_1(sc, AUE_GPIO0,
693 AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
694 } else {
695 aue_csr_write_1(sc, AUE_GPIO0,
696 AUE_GPIO_OUT0 | AUE_GPIO_SEL0);
697 }
698 aue_csr_write_1(sc, AUE_GPIO0,
699 AUE_GPIO_OUT0 | AUE_GPIO_SEL0 | AUE_GPIO_SEL1);
700
701 if (sc->aue_flags & PII)
702 aue_reset_pegasus_II(sc);
703
704 /* Wait a little while for the chip to get its brains in order. */
705 delay(10000); /* XXX */
706 }
707
708 /*
709 * Probe for a Pegasus chip.
710 */
711 USB_MATCH(aue)
712 {
713 USB_MATCH_START(aue, uaa);
714
715 /*
716 * Some manufacturers use the same vendor and product id for
717 * different devices. We need to sanity check the DeviceClass
718 * in this case
719 * Currently known guilty products:
720 * 0x050d/0x0121 Belkin Bluetooth and USB2LAN
721 *
722 * If this turns out to be more common, we could use a quirk
723 * table.
724 */
725 if (uaa->vendor == USB_VENDOR_BELKIN &&
726 uaa->product == USB_PRODUCT_BELKIN_USB2LAN) {
727 usb_device_descriptor_t *dd;
728
729 dd = usbd_get_device_descriptor(uaa->device);
730 if (dd != NULL &&
731 dd->bDeviceClass != UDCLASS_IN_INTERFACE)
732 return (UMATCH_NONE);
733 }
734
735 return (aue_lookup(uaa->vendor, uaa->product) != NULL ?
736 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
737 }
738
739 /*
740 * Attach the interface. Allocate softc structures, do ifmedia
741 * setup and ethernet/BPF attach.
742 */
743 USB_ATTACH(aue)
744 {
745 USB_ATTACH_START(aue, sc, uaa);
746 char *devinfop;
747 int s;
748 u_char eaddr[ETHER_ADDR_LEN];
749 struct ifnet *ifp;
750 struct mii_data *mii;
751 usbd_device_handle dev = uaa->device;
752 usbd_interface_handle iface;
753 usbd_status err;
754 usb_interface_descriptor_t *id;
755 usb_endpoint_descriptor_t *ed;
756 int i;
757
758 DPRINTFN(5,(" : aue_attach: sc=%p", sc));
759
760 devinfop = usbd_devinfo_alloc(uaa->device, 0);
761 USB_ATTACH_SETUP;
762 printf("%s: %s\n", USBDEVNAME(sc->aue_dev), devinfop);
763 usbd_devinfo_free(devinfop);
764
765 err = usbd_set_config_no(dev, AUE_CONFIG_NO, 1);
766 if (err) {
767 printf("%s: setting config no failed\n",
768 USBDEVNAME(sc->aue_dev));
769 USB_ATTACH_ERROR_RETURN;
770 }
771
772 usb_init_task(&sc->aue_tick_task, aue_tick_task, sc);
773 usb_init_task(&sc->aue_stop_task, (void (*)(void *))aue_stop, sc);
774 mutex_init(&sc->aue_mii_lock, MUTEX_DEFAULT, IPL_NONE);
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 #if defined(__NetBSD__)
783 sc->aue_closing = 0;
784
785 mutex_init(&sc->aue_mcmtx, MUTEX_DRIVER, IPL_NET);
786 cv_init(&sc->aue_domc, "auemc");
787 cv_init(&sc->aue_closemc, "auemccl");
788
789 err = kthread_create(PRI_NONE, 0, NULL,
790 aue_multithread, sc, &sc->aue_thread,
791 "%s-mc", USBDEVNAME(sc->aue_dev));
792
793 if (err) {
794 printf("%s: creating multicast configuration thread\n",
795 USBDEVNAME(sc->aue_dev));
796 USB_ATTACH_ERROR_RETURN;
797 }
798 #endif
799 sc->aue_flags = aue_lookup(uaa->vendor, uaa->product)->aue_flags;
800
801 sc->aue_udev = dev;
802 sc->aue_iface = iface;
803 sc->aue_product = uaa->product;
804 sc->aue_vendor = uaa->vendor;
805
806 id = usbd_get_interface_descriptor(iface);
807
808 /* Find endpoints. */
809 for (i = 0; i < id->bNumEndpoints; i++) {
810 ed = usbd_interface2endpoint_descriptor(iface, i);
811 if (ed == NULL) {
812 printf("%s: couldn't get endpoint descriptor %d\n",
813 USBDEVNAME(sc->aue_dev), i);
814 USB_ATTACH_ERROR_RETURN;
815 }
816 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
817 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
818 sc->aue_ed[AUE_ENDPT_RX] = ed->bEndpointAddress;
819 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
820 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
821 sc->aue_ed[AUE_ENDPT_TX] = ed->bEndpointAddress;
822 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
823 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
824 sc->aue_ed[AUE_ENDPT_INTR] = ed->bEndpointAddress;
825 }
826 }
827
828 if (sc->aue_ed[AUE_ENDPT_RX] == 0 || sc->aue_ed[AUE_ENDPT_TX] == 0 ||
829 sc->aue_ed[AUE_ENDPT_INTR] == 0) {
830 printf("%s: missing endpoint\n", USBDEVNAME(sc->aue_dev));
831 USB_ATTACH_ERROR_RETURN;
832 }
833
834
835 s = splnet();
836
837 /* Reset the adapter. */
838 aue_reset(sc);
839
840 /*
841 * Get station address from the EEPROM.
842 */
843 aue_read_mac(sc, eaddr);
844
845 /*
846 * A Pegasus chip was detected. Inform the world.
847 */
848 ifp = GET_IFP(sc);
849 printf("%s: Ethernet address %s\n", USBDEVNAME(sc->aue_dev),
850 ether_sprintf(eaddr));
851
852 /* Initialize interface info.*/
853 ifp->if_softc = sc;
854 ifp->if_mtu = ETHERMTU;
855 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
856 ifp->if_ioctl = aue_ioctl;
857 ifp->if_start = aue_start;
858 ifp->if_watchdog = aue_watchdog;
859 #if defined(__OpenBSD__)
860 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
861 #endif
862 strncpy(ifp->if_xname, USBDEVNAME(sc->aue_dev), IFNAMSIZ);
863
864 IFQ_SET_READY(&ifp->if_snd);
865
866 /* Initialize MII/media info. */
867 mii = &sc->aue_mii;
868 mii->mii_ifp = ifp;
869 mii->mii_readreg = aue_miibus_readreg;
870 mii->mii_writereg = aue_miibus_writereg;
871 mii->mii_statchg = aue_miibus_statchg;
872 mii->mii_flags = MIIF_AUTOTSLEEP;
873 sc->aue_ec.ec_mii = mii;
874 ifmedia_init(&mii->mii_media, 0, aue_ifmedia_upd, ether_mediastatus);
875 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
876 if (LIST_FIRST(&mii->mii_phys) == NULL) {
877 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL);
878 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE);
879 } else
880 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO);
881
882 /* Attach the interface. */
883 if_attach(ifp);
884 Ether_ifattach(ifp, eaddr);
885 #if NRND > 0
886 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->aue_dev),
887 RND_TYPE_NET, 0);
888 #endif
889
890 usb_callout_init(sc->aue_stat_ch);
891
892 sc->aue_attached = 1;
893 splx(s);
894
895 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->aue_udev,
896 USBDEV(sc->aue_dev));
897
898 USB_ATTACH_SUCCESS_RETURN;
899 }
900
901 USB_DETACH(aue)
902 {
903 USB_DETACH_START(aue, sc);
904 struct ifnet *ifp = GET_IFP(sc);
905 int s;
906
907 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
908
909 if (!sc->aue_attached) {
910 /* Detached before attached finished, so just bail out. */
911 return (0);
912 }
913
914 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
915 /*
916 * Remove any pending tasks. They cannot be executing because they run
917 * in the same thread as detach.
918 */
919 usb_rem_task(sc->aue_udev, &sc->aue_tick_task);
920 usb_rem_task(sc->aue_udev, &sc->aue_stop_task);
921
922 sc->aue_closing = 1;
923 cv_signal(&sc->aue_domc);
924
925 mutex_enter(&sc->aue_mcmtx);
926 cv_wait(&sc->aue_closemc,&sc->aue_mcmtx);
927 mutex_exit(&sc->aue_mcmtx);
928
929 mutex_destroy(&sc->aue_mcmtx);
930 cv_destroy(&sc->aue_domc);
931 cv_destroy(&sc->aue_closemc);
932
933 s = splusb();
934
935 if (ifp->if_flags & IFF_RUNNING)
936 aue_stop(sc);
937
938 #if defined(__NetBSD__)
939 #if NRND > 0
940 rnd_detach_source(&sc->rnd_source);
941 #endif
942 mii_detach(&sc->aue_mii, MII_PHY_ANY, MII_OFFSET_ANY);
943 ifmedia_delete_instance(&sc->aue_mii.mii_media, IFM_INST_ANY);
944 ether_ifdetach(ifp);
945 #endif /* __NetBSD__ */
946
947 if_detach(ifp);
948
949 #ifdef DIAGNOSTIC
950 if (sc->aue_ep[AUE_ENDPT_TX] != NULL ||
951 sc->aue_ep[AUE_ENDPT_RX] != NULL ||
952 sc->aue_ep[AUE_ENDPT_INTR] != NULL)
953 printf("%s: detach has active endpoints\n",
954 USBDEVNAME(sc->aue_dev));
955 #endif
956
957 sc->aue_attached = 0;
958
959 if (--sc->aue_refcnt >= 0) {
960 /* Wait for processes to go away. */
961 usb_detach_wait(USBDEV(sc->aue_dev));
962 }
963 splx(s);
964
965 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->aue_udev,
966 USBDEV(sc->aue_dev));
967
968 mutex_destroy(&sc->aue_mii_lock);
969 #if 0
970 mutex_destroy(&sc->wkmtx);
971 #endif
972 return (0);
973 }
974
975 int
976 aue_activate(device_ptr_t self, enum devact act)
977 {
978 struct aue_softc *sc = (struct aue_softc *)self;
979
980 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
981
982 switch (act) {
983 case DVACT_ACTIVATE:
984 return (EOPNOTSUPP);
985 break;
986
987 case DVACT_DEACTIVATE:
988 if_deactivate(&sc->aue_ec.ec_if);
989 sc->aue_dying = 1;
990 break;
991 }
992 return (0);
993 }
994
995 /*
996 * Initialize an RX descriptor and attach an MBUF cluster.
997 */
998 Static int
999 aue_newbuf(struct aue_softc *sc, struct aue_chain *c, struct mbuf *m)
1000 {
1001 struct mbuf *m_new = NULL;
1002
1003 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__));
1004
1005 if (m == NULL) {
1006 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1007 if (m_new == NULL) {
1008 printf("%s: no memory for rx list "
1009 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1010 return (ENOBUFS);
1011 }
1012
1013 MCLGET(m_new, M_DONTWAIT);
1014 if (!(m_new->m_flags & M_EXT)) {
1015 printf("%s: no memory for rx list "
1016 "-- packet dropped!\n", USBDEVNAME(sc->aue_dev));
1017 m_freem(m_new);
1018 return (ENOBUFS);
1019 }
1020 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1021 } else {
1022 m_new = m;
1023 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1024 m_new->m_data = m_new->m_ext.ext_buf;
1025 }
1026
1027 m_adj(m_new, ETHER_ALIGN);
1028 c->aue_mbuf = m_new;
1029
1030 return (0);
1031 }
1032
1033 Static int
1034 aue_rx_list_init(struct aue_softc *sc)
1035 {
1036 struct aue_cdata *cd;
1037 struct aue_chain *c;
1038 int i;
1039
1040 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
1041
1042 cd = &sc->aue_cdata;
1043 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1044 c = &cd->aue_rx_chain[i];
1045 c->aue_sc = sc;
1046 c->aue_idx = i;
1047 if (aue_newbuf(sc, c, NULL) == ENOBUFS)
1048 return (ENOBUFS);
1049 if (c->aue_xfer == NULL) {
1050 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1051 if (c->aue_xfer == NULL)
1052 return (ENOBUFS);
1053 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1054 if (c->aue_buf == NULL)
1055 return (ENOBUFS); /* XXX free xfer */
1056 }
1057 }
1058
1059 return (0);
1060 }
1061
1062 Static int
1063 aue_tx_list_init(struct aue_softc *sc)
1064 {
1065 struct aue_cdata *cd;
1066 struct aue_chain *c;
1067 int i;
1068
1069 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
1070
1071 cd = &sc->aue_cdata;
1072 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1073 c = &cd->aue_tx_chain[i];
1074 c->aue_sc = sc;
1075 c->aue_idx = i;
1076 c->aue_mbuf = NULL;
1077 if (c->aue_xfer == NULL) {
1078 c->aue_xfer = usbd_alloc_xfer(sc->aue_udev);
1079 if (c->aue_xfer == NULL)
1080 return (ENOBUFS);
1081 c->aue_buf = usbd_alloc_buffer(c->aue_xfer, AUE_BUFSZ);
1082 if (c->aue_buf == NULL)
1083 return (ENOBUFS);
1084 }
1085 }
1086
1087 return (0);
1088 }
1089
1090 Static void
1091 aue_intr(usbd_xfer_handle xfer, usbd_private_handle priv,
1092 usbd_status status)
1093 {
1094 struct aue_softc *sc = priv;
1095 struct ifnet *ifp = GET_IFP(sc);
1096 struct aue_intrpkt *p = &sc->aue_cdata.aue_ibuf;
1097
1098 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__));
1099
1100 if (sc->aue_dying)
1101 return;
1102
1103 if (!(ifp->if_flags & IFF_RUNNING))
1104 return;
1105
1106 if (status != USBD_NORMAL_COMPLETION) {
1107 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1108 return;
1109 }
1110 sc->aue_intr_errs++;
1111 if (usbd_ratecheck(&sc->aue_rx_notice)) {
1112 printf("%s: %u usb errors on intr: %s\n",
1113 USBDEVNAME(sc->aue_dev), sc->aue_intr_errs,
1114 usbd_errstr(status));
1115 sc->aue_intr_errs = 0;
1116 }
1117 if (status == USBD_STALLED)
1118 usbd_clear_endpoint_stall_async(sc->aue_ep[AUE_ENDPT_RX]);
1119 return;
1120 }
1121
1122 if (p->aue_txstat0)
1123 ifp->if_oerrors++;
1124
1125 if (p->aue_txstat0 & (AUE_TXSTAT0_LATECOLL | AUE_TXSTAT0_EXCESSCOLL))
1126 ifp->if_collisions++;
1127 }
1128
1129 /*
1130 * A frame has been uploaded: pass the resulting mbuf chain up to
1131 * the higher level protocols.
1132 */
1133 Static void
1134 aue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
1135 {
1136 struct aue_chain *c = priv;
1137 struct aue_softc *sc = c->aue_sc;
1138 struct ifnet *ifp = GET_IFP(sc);
1139 struct mbuf *m;
1140 u_int32_t total_len;
1141 struct aue_rxpkt r;
1142 int s;
1143
1144 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__));
1145
1146 if (sc->aue_dying)
1147 return;
1148
1149 if (!(ifp->if_flags & IFF_RUNNING))
1150 return;
1151
1152 if (status != USBD_NORMAL_COMPLETION) {
1153 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
1154 return;
1155 sc->aue_rx_errs++;
1156 if (usbd_ratecheck(&sc->aue_rx_notice)) {
1157 printf("%s: %u usb errors on rx: %s\n",
1158 USBDEVNAME(sc->aue_dev), sc->aue_rx_errs,
1159 usbd_errstr(status));
1160 sc->aue_rx_errs = 0;
1161 }
1162 if (status == USBD_STALLED)
1163 usbd_clear_endpoint_stall_async(sc->aue_ep[AUE_ENDPT_RX]);
1164 goto done;
1165 }
1166
1167 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
1168
1169 memcpy(mtod(c->aue_mbuf, char *), c->aue_buf, total_len);
1170
1171 if (total_len <= 4 + ETHER_CRC_LEN) {
1172 ifp->if_ierrors++;
1173 goto done;
1174 }
1175
1176 memcpy(&r, c->aue_buf + total_len - 4, sizeof(r));
1177
1178 /* Turn off all the non-error bits in the rx status word. */
1179 r.aue_rxstat &= AUE_RXSTAT_MASK;
1180 if (r.aue_rxstat) {
1181 ifp->if_ierrors++;
1182 goto done;
1183 }
1184
1185 /* No errors; receive the packet. */
1186 m = c->aue_mbuf;
1187 total_len -= ETHER_CRC_LEN + 4;
1188 m->m_pkthdr.len = m->m_len = total_len;
1189 ifp->if_ipackets++;
1190
1191 m->m_pkthdr.rcvif = ifp;
1192
1193 s = splnet();
1194
1195 /* XXX ugly */
1196 if (aue_newbuf(sc, c, NULL) == ENOBUFS) {
1197 ifp->if_ierrors++;
1198 goto done1;
1199 }
1200
1201 #if NBPFILTER > 0
1202 /*
1203 * Handle BPF listeners. Let the BPF user see the packet, but
1204 * don't pass it up to the ether_input() layer unless it's
1205 * a broadcast packet, multicast packet, matches our ethernet
1206 * address or the interface is in promiscuous mode.
1207 */
1208 if (ifp->if_bpf)
1209 BPF_MTAP(ifp, m);
1210 #endif
1211
1212 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->aue_dev),
1213 __func__, m->m_len));
1214 IF_INPUT(ifp, m);
1215 done1:
1216 splx(s);
1217
1218 done:
1219
1220 /* Setup new transfer. */
1221 usbd_setup_xfer(xfer, sc->aue_ep[AUE_ENDPT_RX],
1222 c, c->aue_buf, AUE_BUFSZ,
1223 USBD_SHORT_XFER_OK | USBD_NO_COPY,
1224 USBD_NO_TIMEOUT, aue_rxeof);
1225 usbd_transfer(xfer);
1226
1227 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->aue_dev),
1228 __func__));
1229 }
1230
1231 /*
1232 * A frame was downloaded to the chip. It's safe for us to clean up
1233 * the list buffers.
1234 */
1235
1236 Static void
1237 aue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv,
1238 usbd_status status)
1239 {
1240 struct aue_chain *c = priv;
1241 struct aue_softc *sc = c->aue_sc;
1242 struct ifnet *ifp = GET_IFP(sc);
1243 int s;
1244
1245 if (sc->aue_dying)
1246 return;
1247
1248 s = splnet();
1249
1250 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->aue_dev),
1251 __func__, status));
1252
1253 ifp->if_timer = 0;
1254 ifp->if_flags &= ~IFF_OACTIVE;
1255
1256 if (status != USBD_NORMAL_COMPLETION) {
1257 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
1258 splx(s);
1259 return;
1260 }
1261 ifp->if_oerrors++;
1262 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->aue_dev),
1263 usbd_errstr(status));
1264 if (status == USBD_STALLED)
1265 usbd_clear_endpoint_stall_async(sc->aue_ep[AUE_ENDPT_TX]);
1266 splx(s);
1267 return;
1268 }
1269
1270 ifp->if_opackets++;
1271
1272 m_freem(c->aue_mbuf);
1273 c->aue_mbuf = NULL;
1274
1275 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
1276 aue_start(ifp);
1277
1278 splx(s);
1279 }
1280
1281 Static void
1282 aue_tick(void *xsc)
1283 {
1284 struct aue_softc *sc = xsc;
1285
1286 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__));
1287
1288 if (sc == NULL)
1289 return;
1290
1291 if (sc->aue_dying)
1292 return;
1293
1294 /* Perform periodic stuff in process context. */
1295 usb_add_task(sc->aue_udev, &sc->aue_tick_task, USB_TASKQ_DRIVER);
1296 }
1297
1298 Static void
1299 aue_tick_task(void *xsc)
1300 {
1301 struct aue_softc *sc = xsc;
1302 struct ifnet *ifp;
1303 struct mii_data *mii;
1304 int s;
1305
1306 DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__));
1307
1308 if (sc->aue_dying)
1309 return;
1310
1311 ifp = GET_IFP(sc);
1312 mii = GET_MII(sc);
1313 if (mii == NULL)
1314 return;
1315
1316 s = splnet();
1317
1318 mii_tick(mii);
1319 if (!sc->aue_link) {
1320 mii_pollstat(mii); /* XXX FreeBSD has removed this call */
1321 if (mii->mii_media_status & IFM_ACTIVE &&
1322 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
1323 DPRINTFN(2,("%s: %s: got link\n",
1324 USBDEVNAME(sc->aue_dev),__func__));
1325 sc->aue_link++;
1326 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
1327 aue_start(ifp);
1328 }
1329 }
1330
1331 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1332
1333 splx(s);
1334 }
1335
1336 Static int
1337 aue_send(struct aue_softc *sc, struct mbuf *m, int idx)
1338 {
1339 int total_len;
1340 struct aue_chain *c;
1341 usbd_status err;
1342
1343 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev),__func__));
1344
1345 c = &sc->aue_cdata.aue_tx_chain[idx];
1346
1347 /*
1348 * Copy the mbuf data into a contiguous buffer, leaving two
1349 * bytes at the beginning to hold the frame length.
1350 */
1351 m_copydata(m, 0, m->m_pkthdr.len, c->aue_buf + 2);
1352 c->aue_mbuf = m;
1353
1354 /*
1355 * The ADMtek documentation says that the packet length is
1356 * supposed to be specified in the first two bytes of the
1357 * transfer, however it actually seems to ignore this info
1358 * and base the frame size on the bulk transfer length.
1359 */
1360 c->aue_buf[0] = (u_int8_t)m->m_pkthdr.len;
1361 c->aue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
1362 total_len = m->m_pkthdr.len + 2;
1363
1364 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_TX],
1365 c, c->aue_buf, total_len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
1366 AUE_TX_TIMEOUT, aue_txeof);
1367
1368 /* Transmit */
1369 err = usbd_transfer(c->aue_xfer);
1370 if (err != USBD_IN_PROGRESS) {
1371 printf("%s: aue_send error=%s\n", USBDEVNAME(sc->aue_dev),
1372 usbd_errstr(err));
1373 /* Stop the interface from process context. */
1374 usb_add_task(sc->aue_udev, &sc->aue_stop_task,
1375 USB_TASKQ_DRIVER);
1376 return (EIO);
1377 }
1378 DPRINTFN(5,("%s: %s: send %d bytes\n", USBDEVNAME(sc->aue_dev),
1379 __func__, total_len));
1380
1381 sc->aue_cdata.aue_tx_cnt++;
1382
1383 return (0);
1384 }
1385
1386 Static void
1387 aue_start(struct ifnet *ifp)
1388 {
1389 struct aue_softc *sc = ifp->if_softc;
1390 struct mbuf *m_head = NULL;
1391
1392 DPRINTFN(5,("%s: %s: enter, link=%d\n", USBDEVNAME(sc->aue_dev),
1393 __func__, sc->aue_link));
1394
1395 if (sc->aue_dying)
1396 return;
1397
1398 if (!sc->aue_link)
1399 return;
1400
1401 if (ifp->if_flags & IFF_OACTIVE)
1402 return;
1403
1404 IFQ_POLL(&ifp->if_snd, m_head);
1405 if (m_head == NULL)
1406 return;
1407
1408 if (aue_send(sc, m_head, 0)) {
1409 ifp->if_flags |= IFF_OACTIVE;
1410 return;
1411 }
1412
1413 IFQ_DEQUEUE(&ifp->if_snd, m_head);
1414
1415 #if NBPFILTER > 0
1416 /*
1417 * If there's a BPF listener, bounce a copy of this frame
1418 * to him.
1419 */
1420 if (ifp->if_bpf)
1421 BPF_MTAP(ifp, m_head);
1422 #endif
1423
1424 ifp->if_flags |= IFF_OACTIVE;
1425
1426 /*
1427 * Set a timeout in case the chip goes out to lunch.
1428 */
1429 ifp->if_timer = 5;
1430 }
1431
1432 Static void
1433 aue_init(void *xsc)
1434 {
1435 struct aue_softc *sc = xsc;
1436 struct ifnet *ifp = GET_IFP(sc);
1437 struct mii_data *mii = GET_MII(sc);
1438 int i, s;
1439 const u_char *eaddr;
1440
1441 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
1442
1443 if (sc->aue_dying)
1444 return;
1445
1446 if (ifp->if_flags & IFF_RUNNING)
1447 return;
1448
1449 s = splnet();
1450
1451 /*
1452 * Cancel pending I/O and free all RX/TX buffers.
1453 */
1454 aue_reset(sc);
1455
1456 #if defined(__OpenBSD__)
1457 eaddr = sc->arpcom.ac_enaddr;
1458 #elif defined(__NetBSD__)
1459 eaddr = CLLADDR(ifp->if_sadl);
1460 #endif /* defined(__NetBSD__) */
1461 for (i = 0; i < ETHER_ADDR_LEN; i++)
1462 aue_csr_write_1(sc, AUE_PAR0 + i, eaddr[i]);
1463
1464 /* If we want promiscuous mode, set the allframes bit. */
1465 if (ifp->if_flags & IFF_PROMISC)
1466 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1467 else
1468 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1469
1470 /* Init TX ring. */
1471 if (aue_tx_list_init(sc) == ENOBUFS) {
1472 printf("%s: tx list init failed\n", USBDEVNAME(sc->aue_dev));
1473 splx(s);
1474 return;
1475 }
1476
1477 /* Init RX ring. */
1478 if (aue_rx_list_init(sc) == ENOBUFS) {
1479 printf("%s: rx list init failed\n", USBDEVNAME(sc->aue_dev));
1480 splx(s);
1481 return;
1482 }
1483
1484 /* Load the multicast filter. */
1485 aue_setmulti(sc);
1486
1487 /* Enable RX and TX */
1488 aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB);
1489 AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB);
1490 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR);
1491
1492 mii_mediachg(mii);
1493
1494 if (sc->aue_ep[AUE_ENDPT_RX] == NULL) {
1495 if (aue_openpipes(sc)) {
1496 splx(s);
1497 return;
1498 }
1499 }
1500
1501 ifp->if_flags |= IFF_RUNNING;
1502 ifp->if_flags &= ~IFF_OACTIVE;
1503
1504 splx(s);
1505
1506 usb_callout(sc->aue_stat_ch, hz, aue_tick, sc);
1507 }
1508
1509 Static int
1510 aue_openpipes(struct aue_softc *sc)
1511 {
1512 struct aue_chain *c;
1513 usbd_status err;
1514 int i;
1515
1516 /* Open RX and TX pipes. */
1517 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_RX],
1518 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_RX]);
1519 if (err) {
1520 printf("%s: open rx pipe failed: %s\n",
1521 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1522 return (EIO);
1523 }
1524 err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_TX],
1525 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_TX]);
1526 if (err) {
1527 printf("%s: open tx pipe failed: %s\n",
1528 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1529 return (EIO);
1530 }
1531 err = usbd_open_pipe_intr(sc->aue_iface, sc->aue_ed[AUE_ENDPT_INTR],
1532 USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_INTR], sc,
1533 &sc->aue_cdata.aue_ibuf, AUE_INTR_PKTLEN, aue_intr,
1534 AUE_INTR_INTERVAL);
1535 if (err) {
1536 printf("%s: open intr pipe failed: %s\n",
1537 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1538 return (EIO);
1539 }
1540
1541 /* Start up the receive pipe. */
1542 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1543 c = &sc->aue_cdata.aue_rx_chain[i];
1544 usbd_setup_xfer(c->aue_xfer, sc->aue_ep[AUE_ENDPT_RX],
1545 c, c->aue_buf, AUE_BUFSZ,
1546 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
1547 aue_rxeof);
1548 (void)usbd_transfer(c->aue_xfer); /* XXX */
1549 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->aue_dev),
1550 __func__));
1551
1552 }
1553 return (0);
1554 }
1555
1556 /*
1557 * Set media options.
1558 */
1559 Static int
1560 aue_ifmedia_upd(struct ifnet *ifp)
1561 {
1562 struct aue_softc *sc = ifp->if_softc;
1563 struct mii_data *mii = GET_MII(sc);
1564 int rc;
1565
1566 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
1567
1568 if (sc->aue_dying)
1569 return (0);
1570
1571 sc->aue_link = 0;
1572
1573 if ((rc = mii_mediachg(mii)) == ENXIO)
1574 return 0;
1575 return rc;
1576 }
1577
1578 Static int
1579 aue_ioctl(struct ifnet *ifp, u_long command, void *data)
1580 {
1581 struct aue_softc *sc = ifp->if_softc;
1582 struct ifaddr *ifa = (struct ifaddr *)data;
1583 struct ifreq *ifr = (struct ifreq *)data;
1584 int s, error = 0;
1585
1586 if (sc->aue_dying)
1587 return (EIO);
1588
1589 s = splnet();
1590
1591 switch(command) {
1592 case SIOCSIFADDR:
1593 ifp->if_flags |= IFF_UP;
1594 aue_init(sc);
1595
1596 switch (ifa->ifa_addr->sa_family) {
1597 #ifdef INET
1598 case AF_INET:
1599 #if defined(__NetBSD__)
1600 arp_ifinit(ifp, ifa);
1601 #else
1602 arp_ifinit(&sc->arpcom, ifa);
1603 #endif
1604 break;
1605 #endif /* INET */
1606 }
1607 break;
1608
1609 case SIOCSIFMTU:
1610 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU)
1611 error = EINVAL;
1612 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET)
1613 error = 0;
1614 break;
1615
1616 case SIOCSIFFLAGS:
1617 if (ifp->if_flags & IFF_UP) {
1618 if (ifp->if_flags & IFF_RUNNING &&
1619 ifp->if_flags & IFF_PROMISC &&
1620 !(sc->aue_if_flags & IFF_PROMISC)) {
1621 AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1622 } else if (ifp->if_flags & IFF_RUNNING &&
1623 !(ifp->if_flags & IFF_PROMISC) &&
1624 sc->aue_if_flags & IFF_PROMISC) {
1625 AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1626 } else if (!(ifp->if_flags & IFF_RUNNING))
1627 aue_init(sc);
1628 } else {
1629 if (ifp->if_flags & IFF_RUNNING)
1630 aue_stop(sc);
1631 }
1632 sc->aue_if_flags = ifp->if_flags;
1633 error = 0;
1634 break;
1635 case SIOCADDMULTI:
1636 case SIOCDELMULTI:
1637 case SIOCGIFMEDIA:
1638 case SIOCSIFMEDIA:
1639 if ((error = ether_ioctl(ifp, command, data)) == ENETRESET) {
1640 if (ifp->if_flags & IFF_RUNNING) {
1641 #if defined(__NetBSD__)
1642 cv_signal(&sc->aue_domc);
1643 #else
1644 aue_init(sc);
1645 aue_setmulti(sc);
1646 #endif
1647 }
1648 error = 0;
1649 }
1650 break;
1651 default:
1652 error = EINVAL;
1653 break;
1654 }
1655
1656 splx(s);
1657
1658 return (error);
1659 }
1660
1661 Static void
1662 aue_watchdog(struct ifnet *ifp)
1663 {
1664 struct aue_softc *sc = ifp->if_softc;
1665 struct aue_chain *c;
1666 usbd_status stat;
1667 int s;
1668
1669 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
1670
1671 ifp->if_oerrors++;
1672 printf("%s: watchdog timeout\n", USBDEVNAME(sc->aue_dev));
1673
1674 s = splusb();
1675 c = &sc->aue_cdata.aue_tx_chain[0];
1676 usbd_get_xfer_status(c->aue_xfer, NULL, NULL, NULL, &stat);
1677 aue_txeof(c->aue_xfer, c, stat);
1678
1679 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
1680 aue_start(ifp);
1681 splx(s);
1682 }
1683
1684 /*
1685 * Stop the adapter and free any mbufs allocated to the
1686 * RX and TX lists.
1687 */
1688 Static void
1689 aue_stop(struct aue_softc *sc)
1690 {
1691 usbd_status err;
1692 struct ifnet *ifp;
1693 int i;
1694
1695 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->aue_dev), __func__));
1696
1697 ifp = GET_IFP(sc);
1698 ifp->if_timer = 0;
1699
1700 aue_csr_write_1(sc, AUE_CTL0, 0);
1701 aue_csr_write_1(sc, AUE_CTL1, 0);
1702 aue_reset(sc);
1703 usb_uncallout(sc->aue_stat_ch, aue_tick, sc);
1704
1705 /* Stop transfers. */
1706 if (sc->aue_ep[AUE_ENDPT_RX] != NULL) {
1707 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1708 if (err) {
1709 printf("%s: abort rx pipe failed: %s\n",
1710 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1711 }
1712 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_RX]);
1713 if (err) {
1714 printf("%s: close rx pipe failed: %s\n",
1715 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1716 }
1717 sc->aue_ep[AUE_ENDPT_RX] = NULL;
1718 }
1719
1720 if (sc->aue_ep[AUE_ENDPT_TX] != NULL) {
1721 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1722 if (err) {
1723 printf("%s: abort tx pipe failed: %s\n",
1724 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1725 }
1726 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_TX]);
1727 if (err) {
1728 printf("%s: close tx pipe failed: %s\n",
1729 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1730 }
1731 sc->aue_ep[AUE_ENDPT_TX] = NULL;
1732 }
1733
1734 if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) {
1735 err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1736 if (err) {
1737 printf("%s: abort intr pipe failed: %s\n",
1738 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1739 }
1740 err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_INTR]);
1741 if (err) {
1742 printf("%s: close intr pipe failed: %s\n",
1743 USBDEVNAME(sc->aue_dev), usbd_errstr(err));
1744 }
1745 sc->aue_ep[AUE_ENDPT_INTR] = NULL;
1746 }
1747
1748 /* Free RX resources. */
1749 for (i = 0; i < AUE_RX_LIST_CNT; i++) {
1750 if (sc->aue_cdata.aue_rx_chain[i].aue_mbuf != NULL) {
1751 m_freem(sc->aue_cdata.aue_rx_chain[i].aue_mbuf);
1752 sc->aue_cdata.aue_rx_chain[i].aue_mbuf = NULL;
1753 }
1754 if (sc->aue_cdata.aue_rx_chain[i].aue_xfer != NULL) {
1755 usbd_free_xfer(sc->aue_cdata.aue_rx_chain[i].aue_xfer);
1756 sc->aue_cdata.aue_rx_chain[i].aue_xfer = NULL;
1757 }
1758 }
1759
1760 /* Free TX resources. */
1761 for (i = 0; i < AUE_TX_LIST_CNT; i++) {
1762 if (sc->aue_cdata.aue_tx_chain[i].aue_mbuf != NULL) {
1763 m_freem(sc->aue_cdata.aue_tx_chain[i].aue_mbuf);
1764 sc->aue_cdata.aue_tx_chain[i].aue_mbuf = NULL;
1765 }
1766 if (sc->aue_cdata.aue_tx_chain[i].aue_xfer != NULL) {
1767 usbd_free_xfer(sc->aue_cdata.aue_tx_chain[i].aue_xfer);
1768 sc->aue_cdata.aue_tx_chain[i].aue_xfer = NULL;
1769 }
1770 }
1771
1772 sc->aue_link = 0;
1773
1774 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1775 }
1776
1777 #if defined(__NetBSD__)
1778 Static void
1779 aue_multithread(void *arg) {
1780 struct aue_softc *sc;
1781 int s;
1782
1783 sc = (struct aue_softc *)arg;
1784
1785 while (1) {
1786 mutex_enter(&sc->aue_mcmtx);
1787 cv_wait(&sc->aue_domc,&sc->aue_mcmtx);
1788 mutex_exit(&sc->aue_mcmtx);
1789
1790 if (sc->aue_closing)
1791 break;
1792
1793 s = splnet();
1794 aue_init(sc);
1795 /* XXX called by aue_init, but rc ifconfig hangs without it: */
1796 aue_setmulti(sc);
1797 splx(s);
1798 }
1799
1800 cv_signal(&sc->aue_closemc);
1801
1802 kthread_exit(0);
1803 }
1804 #endif
1805