source: freebsd-mos-driver/if_mos.c@ 174

Last change on this file since 174 was 174, checked in by Rick van der Zwet, 14 years ago

An other condition causing a lock to left over (jumping out the lock state)
File size: 25.6 KB
Line 
1/* $OpenBSD: if_mos.c,v 1.7 2009/10/13 19:33:17 pirofti Exp $ */
2#define USB_DEBUG 1
3/*
4 * Copyright (c) 2010 Rick van der Zwet <info@rickvanderzwet.nl>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19/*
20 * Copyright (c) 2008 Johann Christian Rode <jcrode@gmx.net>
21 *
22 * Permission to use, copy, modify, and distribute this software for any
23 * purpose with or without fee is hereby granted, provided that the above
24 * copyright notice and this permission notice appear in all copies.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
27 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
28 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
29 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
30 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
31 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
32 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
33 */
34
35/*
36 * Copyright (c) 2005, 2006, 2007 Jonathan Gray <jsg@openbsd.org>
37 *
38 * Permission to use, copy, modify, and distribute this software for any
39 * purpose with or without fee is hereby granted, provided that the above
40 * copyright notice and this permission notice appear in all copies.
41 *
42 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
43 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
44 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
45 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
46 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
47 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
48 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
49 */
50
51/*
52 * Copyright (c) 1997, 1998, 1999, 2000-2003
53 * Bill Paul <wpaul@windriver.com>. All rights reserved.
54 *
55 * Redistribution and use in source and binary forms, with or without
56 * modification, are permitted provided that the following conditions
57 * are met:
58 * 1. Redistributions of source code must retain the above copyright
59 * notice, this list of conditions and the following disclaimer.
60 * 2. Redistributions in binary form must reproduce the above copyright
61 * notice, this list of conditions and the following disclaimer in the
62 * documentation and/or other materials provided with the distribution.
63 * 3. All advertising materials mentioning features or use of this software
64 * must display the following acknowledgement:
65 * This product includes software developed by Bill Paul.
66 * 4. Neither the name of the author nor the names of any co-contributors
67 * may be used to endorse or promote products derived from this software
68 * without specific prior written permission.
69 *
70 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
71 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
72 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
73 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
74 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
75 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
76 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
77 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
78 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
79 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
80 * THE POSSIBILITY OF SUCH DAMAGE.
81 */
82
83#include <sys/cdefs.h>
84
85/*
86 * Moschip MCS7730/MCS7830 USB to Ethernet controller
87 * The datasheet is available at the following URL:
88 * http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf
89 */
90
91#include <sys/stdint.h>
92#include <sys/stddef.h>
93#include <sys/param.h>
94#include <sys/queue.h>
95#include <sys/types.h>
96#include <sys/systm.h>
97#include <sys/kernel.h>
98#include <sys/bus.h>
99#include <sys/linker_set.h>
100#include <sys/module.h>
101#include <sys/lock.h>
102#include <sys/mutex.h>
103#include <sys/condvar.h>
104#include <sys/sysctl.h>
105#include <sys/sx.h>
106#include <sys/unistd.h>
107#include <sys/callout.h>
108#include <sys/malloc.h>
109#include <sys/priv.h>
110
111#include <dev/usb/usb.h>
112#include <dev/usb/usbdi.h>
113#include <dev/usb/usbdi_util.h>
114#include "usbdevs.h"
115
116#define USB_DEBUG_VAR mos_debug
117#include <dev/usb/usb_debug.h>
118#include <dev/usb/usb_process.h>
119
120#include <dev/usb/net/usb_ethernet.h>
121
122//#include <dev/usb/net/if_mosreg.h>
123#include "if_mosreg.h"
124
125#ifdef USB_DEBUG
126static int mos_debug = 10;
127
128SYSCTL_NODE(_hw_usb, OID_AUTO, mos, CTLFLAG_RW, 0, "USB mos");
129SYSCTL_INT(_hw_usb_mos, OID_AUTO, debug, CTLFLAG_RW, &mos_debug, 0,
130 "Debug level");
131#endif
132
133#define USB_PRODUCT_MOSCHIP_MCS7730 0x7730 /* MCS7730 Ethernet */
134#define USB_PRODUCT_SITECOMEU_LN030 0x0021 /* LN-030 */
135
136
137
138/*
139 * Various supported device vendors/products.
140 */
141static const struct usb_device_id mos_devs[] = {
142 { USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730, MCS7730) },
143 { USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830 , MCS7830) },
144 { USB_VPI( USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030 , MCS7830) },
145};
146
147int mos_probe(device_t dev);
148int mos_attach(device_t dev);
149void mos_attach_post(struct usb_ether *ue);
150int mos_detach(device_t dev);
151
152int mos_encap(struct mos_softc *, struct mbuf *, int);
153void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error);
154void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error);
155void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error);
156void mos_tick(struct usb_ether *);
157void mos_start(struct usb_ether *);
158void mos_init(struct usb_ether *);
159void mos_chip_init(struct mos_softc *);
160void mos_stop(struct usb_ether *);
161void mos_watchdog(struct usb_ether *);
162int mos_miibus_readreg(device_t , int, int);
163int mos_miibus_writereg(device_t , int, int, int);
164void mos_miibus_statchg(device_t);
165int mos_ifmedia_upd(struct ifnet *);
166void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *);
167void mos_reset(struct mos_softc *sc);
168
169int mos_reg_read_1(struct mos_softc *, int);
170int mos_reg_read_2(struct mos_softc *, int);
171int mos_reg_write_1(struct mos_softc *, int, int);
172int mos_reg_write_2(struct mos_softc *, int, int);
173int mos_readmac(struct mos_softc *, u_char *);
174int mos_writemac(struct mos_softc *, u_char *);
175int mos_write_mcast(struct mos_softc *, u_char *);
176
177void mos_setmulti(struct usb_ether *);
178
179static const struct usb_config mos_config[MOS_ENDPT_MAX] = {
180
181 [MOS_ENDPT_TX] = {
182 .type = UE_BULK,
183 .endpoint = UE_ADDR_ANY,
184 .direction = UE_DIR_OUT,
185 .bufsize = (MCLBYTES + 2),
186 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
187 .callback = mos_bulk_write_callback,
188 .timeout = 10000, /* 10 seconds */
189 },
190
191 [MOS_ENDPT_RX] = {
192 .type = UE_BULK,
193 .endpoint = UE_ADDR_ANY,
194 .direction = UE_DIR_IN,
195 .bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN),
196 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
197 .callback = mos_bulk_read_callback,
198 },
199
200 [MOS_ENDPT_INTR] = {
201 .type = UE_INTERRUPT,
202 .endpoint = UE_ADDR_ANY,
203 .direction = UE_DIR_IN,
204 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
205 .bufsize = 0, /* use wMaxPacketSize */
206 .callback = mos_intr_callback,
207 },
208};
209
210static device_method_t mos_methods[] = {
211 /* Device interface */
212 DEVMETHOD(device_probe, mos_probe),
213 DEVMETHOD(device_attach, mos_attach),
214 DEVMETHOD(device_detach, mos_detach),
215
216 /* bus interface */
217 DEVMETHOD(bus_print_child, bus_generic_print_child),
218 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
219
220 /* MII interface */
221 DEVMETHOD(miibus_readreg, mos_miibus_readreg),
222 DEVMETHOD(miibus_writereg, mos_miibus_writereg),
223 DEVMETHOD(miibus_statchg, mos_miibus_statchg),
224
225 {0, 0}
226};
227
228static driver_t mos_driver = {
229 .name = "mos",
230 .methods = mos_methods,
231 .size = sizeof(struct mos_softc)
232};
233
234static devclass_t mos_devclass;
235
236DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0);
237DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0);
238MODULE_DEPEND(mos, uether, 1, 1, 1);
239MODULE_DEPEND(mos, usb, 1, 1, 1);
240MODULE_DEPEND(mos, ether, 1, 1, 1);
241MODULE_DEPEND(mos, miibus, 1, 1, 1);
242
243static const struct usb_ether_methods mos_ue_methods = {
244 .ue_attach_post = mos_attach_post,
245 .ue_start = mos_start,
246 .ue_init = mos_init,
247 .ue_stop = mos_stop,
248 .ue_tick = mos_tick,
249 .ue_setmulti = mos_setmulti,
250 //.ue_setpromisc = mos_setpromisc,
251 .ue_mii_upd = mos_ifmedia_upd,
252 .ue_mii_sts = mos_ifmedia_sts,
253};
254
255
256int
257mos_reg_read_1(struct mos_softc *sc, int reg)
258{
259 struct usb_device_request req;
260 usb_error_t err;
261 uByte val = 0;
262
263 req.bmRequestType = UT_READ_VENDOR_DEVICE;
264 req.bRequest = MOS_UR_READREG;
265 USETW(req.wValue, 0);
266 USETW(req.wIndex, reg);
267 USETW(req.wLength, 1);
268
269 err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
270
271 if (err) {
272 DPRINTF("mos_reg_read_1 error, reg: %d\n", reg);
273 return (-1);
274 }
275
276 return (val);
277}
278
279int
280mos_reg_read_2(struct mos_softc *sc, int reg)
281{
282 struct usb_device_request req;
283 usb_error_t err;
284 uWord val;
285
286 USETW(val,0);
287
288 req.bmRequestType = UT_READ_VENDOR_DEVICE;
289 req.bRequest = MOS_UR_READREG;
290 USETW(req.wValue, 0);
291 USETW(req.wIndex, reg);
292 USETW(req.wLength, 2);
293
294 err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
295
296 if (err) {
297 DPRINTF("mos_reg_read_2 error, reg: %d\n", reg);
298 return (-1);
299 }
300
301 return(UGETW(val));
302}
303
304int
305mos_reg_write_1(struct mos_softc *sc, int reg, int aval)
306{
307 struct usb_device_request req;
308 usb_error_t err;
309 uByte val;
310
311 val = aval;
312
313 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
314 req.bRequest = MOS_UR_WRITEREG;
315 USETW(req.wValue, 0);
316 USETW(req.wIndex, reg);
317 USETW(req.wLength, 1);
318
319 err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
320
321 if (err) {
322 DPRINTF("mos_reg_write_1 error, reg: %d\n", reg);
323 return (-1);
324 }
325
326 return(0);
327}
328
329int
330mos_reg_write_2(struct mos_softc *sc, int reg, int aval)
331{
332 struct usb_device_request req;
333 usb_error_t err;
334 uWord val;
335
336 USETW(val, aval);
337
338 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
339 req.bRequest = MOS_UR_WRITEREG;
340 USETW(req.wValue, 0);
341 USETW(req.wIndex, reg);
342 USETW(req.wLength, 2);
343
344 err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
345
346 if (err) {
347 DPRINTF("mos_reg_write_2 error, reg: %d\n", reg);
348 return (-1);
349 }
350
351 return (0);
352}
353
354int
355mos_readmac(struct mos_softc *sc, u_char *mac)
356{
357 struct usb_device_request req;
358 usb_error_t err;
359
360 req.bmRequestType = UT_READ_VENDOR_DEVICE;
361 req.bRequest = MOS_UR_READREG;
362 USETW(req.wValue, 0);
363 USETW(req.wIndex, MOS_MAC);
364 USETW(req.wLength, ETHER_ADDR_LEN);
365
366 err = uether_do_request(&sc->sc_ue, &req, mac, 1000);
367
368 if (err) {
369 DPRINTF("mos_readmac error");
370 return (-1);
371 }
372
373 return (0);
374}
375
376int
377mos_writemac(struct mos_softc *sc, u_char *mac)
378{
379 struct usb_device_request req;
380 usb_error_t err;
381
382 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
383 req.bRequest = MOS_UR_WRITEREG;
384 USETW(req.wValue, 0);
385 USETW(req.wIndex, MOS_MAC);
386 USETW(req.wLength, ETHER_ADDR_LEN);
387
388 err = uether_do_request(&sc->sc_ue, &req, mac, 1000);
389
390 if (err) {
391 DPRINTF("mos_writemac error");
392 return (-1);
393 }
394
395 return (0);
396}
397
398int
399mos_write_mcast(struct mos_softc *sc, u_char *hashtbl)
400{
401 struct usb_device_request req;
402 usb_error_t err;
403
404 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
405 req.bRequest = MOS_UR_WRITEREG;
406 USETW(req.wValue, 0);
407 USETW(req.wIndex, MOS_MCAST_TABLE);
408 USETW(req.wLength, 8);
409
410 err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000);
411
412 if (err) {
413 DPRINTF("mos_reg_mcast error\n");
414 return(-1);
415 }
416
417 return(0);
418}
419
420int
421mos_miibus_readreg(struct device *dev, int phy, int reg)
422{
423 struct mos_softc *sc = device_get_softc(dev);
424 uWord val;
425 int i,res, locked;
426
427 USETW(val, 0);
428
429 locked = mtx_owned(&sc->sc_mtx);
430 if (!locked)
431 MOS_LOCK(sc);
432
433 mos_reg_write_2(sc, MOS_PHY_DATA, 0);
434 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) |
435 MOS_PHYCTL_READ);
436 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) |
437 MOS_PHYSTS_PENDING);
438
439 for (i = 0; i < MOS_TIMEOUT; i++) {
440 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY)
441 break;
442 }
443 if (i == MOS_TIMEOUT) {
444 printf("%s: MII read timeout\n", "mos");
445 }
446
447 res = mos_reg_read_2(sc, MOS_PHY_DATA);
448
449 if (!locked)
450 MOS_UNLOCK(sc);
451 return (res);
452}
453
454int
455mos_miibus_writereg(device_t dev, int phy, int reg, int val)
456{
457 struct mos_softc *sc = device_get_softc(dev);
458 int i, locked;
459
460 locked = mtx_owned(&sc->sc_mtx);
461 if (!locked)
462 MOS_LOCK(sc);
463
464 mos_reg_write_2(sc, MOS_PHY_DATA, val);
465 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) |
466 MOS_PHYCTL_WRITE);
467 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) |
468 MOS_PHYSTS_PENDING);
469
470 for (i = 0; i < MOS_TIMEOUT; i++) {
471 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY)
472 break;
473 }
474 if (i == MOS_TIMEOUT) {
475 printf("%s: MII write timeout\n", "mos");
476 }
477
478 if (!locked)
479 MOS_UNLOCK(sc);
480 return 0;
481}
482
483void
484mos_miibus_statchg(device_t dev)
485{
486 struct mos_softc *sc = device_get_softc(dev);
487 struct mii_data *mii = GET_MII(sc);
488 int val, err, locked;
489
490 locked = mtx_owned(&sc->sc_mtx);
491 if (!locked)
492 MOS_LOCK(sc);
493
494 /* disable RX, TX prior to changing FDX, SPEEDSEL */
495 val = mos_reg_read_1(sc, MOS_CTL);
496 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB);
497 mos_reg_write_1(sc, MOS_CTL, val);
498
499 /* reset register which counts dropped frames */
500 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0);
501
502 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
503 val |= MOS_CTL_FDX_ENB;
504 else
505 val &= ~(MOS_CTL_FDX_ENB);
506
507 switch (IFM_SUBTYPE(mii->mii_media_active)) {
508 case IFM_100_TX:
509 val |= MOS_CTL_SPEEDSEL;
510 break;
511 case IFM_10_T:
512 val &= ~(MOS_CTL_SPEEDSEL);
513 break;
514 }
515
516 /* re-enable TX, RX */
517 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB);
518 err = mos_reg_write_1(sc, MOS_CTL, val);
519
520 if (err)
521 printf("%s: media change failed\n", "mos");
522
523 if (!locked)
524 MOS_UNLOCK(sc);
525}
526
527/*
528 * Set media options.
529 */
530int
531mos_ifmedia_upd(struct ifnet *ifp)
532{
533 struct mos_softc *sc = ifp->if_softc;
534 struct mii_data *mii = GET_MII(sc);
535
536 MOS_LOCK_ASSERT(sc, MA_OWNED);
537
538 sc->mos_link = 0;
539 if (mii->mii_instance) {
540 struct mii_softc *miisc;
541
542 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
543 mii_phy_reset(miisc);
544 }
545 mii_mediachg(mii);
546 return (0);
547}
548
549/*
550 * Report current media status.
551 */
552void
553mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
554{
555 struct mos_softc *sc = ifp->if_softc;
556 struct mii_data *mii = GET_MII(sc);
557
558 MOS_LOCK(sc);
559 mii_pollstat(mii);
560 MOS_UNLOCK(sc);
561
562 ifmr->ifm_active = mii->mii_media_active;
563 ifmr->ifm_status = mii->mii_media_status;
564}
565
566void
567mos_setmulti(struct usb_ether *ue)
568{
569 struct mos_softc *sc = uether_getsc(ue);
570 struct ifnet *ifp = uether_getifp(ue);
571 struct ifmultiaddr *ifma;
572
573 u_int32_t h = 0;
574 u_int8_t rxmode;
575 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
576 int allmulti = 0;
577
578 MOS_LOCK_ASSERT(sc, MA_OWNED);
579
580 rxmode = mos_reg_read_1(sc, MOS_CTL);
581
582 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC)
583 allmulti = 1;
584
585 /* get all new ones */
586 if_maddr_rlock(ifp);
587 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
588 if (ifma->ifma_addr->sa_family != AF_LINK) {
589 allmulti = 1;
590 continue;
591 };
592 h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
593 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
594 //h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26;
595 hashtbl[h / 8] |= 1 << (h % 8);
596 }
597 if_maddr_runlock(ifp);
598
599 /* now program new ones */
600 if (allmulti == 1) {
601 rxmode |= MOS_CTL_ALLMULTI;
602 mos_reg_write_1(sc, MOS_CTL, rxmode);
603 } else {
604 rxmode &= ~MOS_CTL_ALLMULTI;
605 ifp->if_flags &= ~IFF_ALLMULTI;
606 mos_write_mcast(sc, (void *)&hashtbl);
607 mos_reg_write_1(sc, MOS_CTL, rxmode);
608 }
609}
610
611void
612mos_reset(struct mos_softc *sc)
613{
614 u_int8_t ctl;
615
616 ctl = mos_reg_read_1(sc, MOS_CTL);
617 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB |
618 MOS_CTL_RX_ENB);
619 /* Disable RX, TX, promiscuous and allmulticast mode */
620 mos_reg_write_1(sc, MOS_CTL, ctl);
621
622 /* Reset frame drop counter register to zero */
623 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0);
624
625 /* Wait a little while for the chip to get its brains in order. */
626 DELAY(1000);
627 return;
628}
629
630void
631mos_chip_init(struct mos_softc *sc)
632{
633 int i;
634
635 /*
636 * Rev.C devices have a pause threshold register which needs to be set
637 * at startup.
638 */
639 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) {
640 for (i=0;i<MOS_PAUSE_REWRITES;i++)
641 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0);
642 }
643
644 sc->mos_phyaddrs[0] = 1; sc->mos_phyaddrs[1] = 0xFF;
645}
646
647/*
648 * Probe for a MCS7x30 chip.
649 */
650int
651mos_probe(device_t dev)
652{
653 DPRINTF("mos: probe\n");
654 struct usb_attach_arg *uaa = device_get_ivars(dev);
655
656 if (uaa->usb_mode != USB_MODE_HOST) {
657 DPRINTF("mos: not USB_MODE_HOST\n");
658 return (ENXIO);
659 }
660 //uint8_t bIfaceIndex;
661 //uint8_t bIfaceNum;
662 //uint8_t bConfigIndex;
663 //uint8_t bConfigNum;
664
665 if (uaa->info.bConfigNum != MOS_CONFIG_NO) {
666 DPRINTF("mos: not MOS_CONFIG_NO %i vs %i\n", uaa->info.bConfigNum , MOS_CONFIG_NO);
667 return (ENXIO);
668 }
669 if (uaa->info.bIfaceIndex != MOS_IFACE_IDX) {
670 DPRINTF("mos: not MOS_IFACE_IDX %i vs %i\n", uaa->info.bIfaceIndex, MOS_IFACE_IDX);
671 return (ENXIO);
672 }
673
674 DPRINTF("mos: probe by generic means\n");
675 int retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa);
676 DPRINTF("mos: probe retval: %i (ENXIO:%i)\n", retval, ENXIO);
677 return retval;
678}
679
680/*
681 * Attach the interface. Allocate softc structures, do ifmedia
682 * setup and ethernet/BPF attach.
683 */
684int
685mos_attach(device_t dev)
686{
687 struct usb_attach_arg *uaa = device_get_ivars(dev);
688 struct mos_softc *sc = device_get_softc(dev);
689 struct usb_ether *ue = &sc->sc_ue;
690
691 uint8_t iface_index;
692 int error;
693
694 sc->mos_flags = USB_GET_DRIVER_INFO(uaa);
695
696 device_set_usb_desc(dev);
697 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
698
699 iface_index = MOS_IFACE_IDX;
700 error = usbd_transfer_setup(uaa->device, &iface_index,
701 sc->sc_xfer, mos_config, MOS_CONFIG_NO,
702 sc, &sc->sc_mtx);
703
704 if (error) {
705 device_printf(dev, "allocating USB transfers failed\n");
706 goto detach;
707 }
708
709 ue->ue_sc = sc;
710 ue->ue_dev = dev;
711 ue->ue_udev = uaa->device;
712 ue->ue_mtx = &sc->sc_mtx;
713 ue->ue_methods = &mos_ue_methods;
714
715
716 DPRINTF("%s:", "mos");
717
718 if (sc->mos_flags & MCS7730) {
719 DPRINTF(" MCS7730");
720 } else if (sc->mos_flags & MCS7830) {
721 DPRINTF(" MCS7830");
722 }
723
724 error = uether_ifattach(ue);
725 if (error) {
726 device_printf(dev, "could not attach interface\n");
727 goto detach;
728 }
729 return (0); /* success */
730
731
732detach:
733 mos_detach(dev);
734 return (ENXIO); /* failure */
735}
736
737
738void
739mos_attach_post(struct usb_ether *ue)
740{
741 struct mos_softc *sc = uether_getsc(ue);
742 /*
743 * Read MAC address, inform the world.
744 */
745 // int err = mos_readmac(sc, (void*)&eaddr);
746 // if (err) {
747 // printf("%s: couldn't get MAC address\n",
748 // "mos");
749 // return;
750 // }
751 // bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
752 // printf(", address %s\n", ether_sprintf(eaddr));
753 mos_chip_init(sc);
754
755
756 sc->mos_attached = 1;
757}
758
759int
760mos_detach(device_t dev)
761{
762 struct mos_softc *sc = device_get_softc(dev);
763 struct usb_ether *ue = &sc->sc_ue;
764
765 usbd_transfer_unsetup(sc->sc_xfer, MOS_CONFIG_NO);
766 uether_ifdetach(ue);
767 mtx_destroy(&sc->sc_mtx);
768
769 return (0);
770}
771
772
773
774
775/*
776 * A frame has been uploaded: pass the resulting mbuf chain up to
777 * the higher level protocols.
778 */
779void
780mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
781{
782 struct mos_softc *sc = usbd_xfer_softc(xfer);
783 struct usb_ether *ue = &sc->sc_ue;
784 struct ifnet *ifp = uether_getifp(ue);
785
786 u_int8_t rxstat = 0;
787 u_int32_t actlen;
788 u_int16_t pktlen = 0;
789 struct mbuf *stat;
790 uint8_t status;
791 struct usb_page_cache *pc;
792
793 DPRINTF("%s: %s: enter\n", "mos",__func__);
794
795 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
796 pc = usbd_xfer_get_frame(xfer, 0);
797
798 status = USB_GET_STATE(xfer);
799 if (status != USB_ST_SETUP) {
800 if (status == USB_ST_TRANSFERRED) {
801 if (actlen <= 1)
802 goto done;
803
804 usbd_copy_out(pc, actlen - sizeof(stat), &stat,
805 sizeof(stat));
806
807 /* evaluate status byte at the end */
808 pktlen = actlen - 1;
809 //rxstat = stat[pktlen] & MOS_RXSTS_MASK;
810 m_freem(stat);
811
812 if (rxstat != MOS_RXSTS_VALID) {
813 DPRINTF("%s: erroneous frame received: ",
814 "mos");
815 if (rxstat & MOS_RXSTS_SHORT_FRAME)
816 DPRINTF("frame size less than 64 bytes\n");
817 if (rxstat & MOS_RXSTS_LARGE_FRAME)
818 DPRINTF("frame size larger than 1532 bytes\n");
819 if (rxstat & MOS_RXSTS_CRC_ERROR)
820 DPRINTF("CRC error\n");
821 if (rxstat & MOS_RXSTS_ALIGN_ERROR)
822 DPRINTF("alignment error\n");
823 ifp->if_ierrors++;
824 goto done;
825 }
826
827 if ( pktlen < sizeof(struct ether_header) ) {
828 ifp->if_ierrors++;
829 goto done;
830 }
831
832 uether_rxbuf(ue, pc, 0, actlen);
833
834 } else {
835 DPRINTF("bulk read error, %s\n", usbd_errstr(error));
836 if (error == USB_ERR_CANCELLED) {
837 return;
838 } else {
839 /* try to clear stall first */
840 usbd_xfer_set_stall(xfer);
841 goto done;
842 }
843 }
844 }
845done:
846 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
847 usbd_transfer_submit(xfer);
848 uether_rxflush(ue);
849 DPRINTF("%s: %s: start rx\n", "mos", __func__);
850
851 return;
852}
853
854/*
855 * A frame was downloaded to the chip. It's safe for us to clean up
856 * the list buffers.
857 */
858
859void
860mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
861{
862 struct mos_softc *sc = usbd_xfer_softc(xfer);
863 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
864 struct usb_page_cache *pc;
865 struct mbuf *m;
866 uint8_t status;
867 int actlen;
868
869 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
870 pc = usbd_xfer_get_frame(xfer, 0);
871
872 status = USB_GET_STATE(xfer);
873
874 if (status != USB_ST_SETUP) {
875 if (status == USB_ST_TRANSFERRED) {
876 DPRINTF("transfer of %d bytes complete\n", actlen);
877 ifp->if_opackets++;
878 } else {
879 DPRINTF("%s: usb error on tx: %s\n", "mos", usbd_errstr(status));
880 ifp->if_oerrors++;
881 if (error == USB_ERR_CANCELLED) {
882 return;
883 }
884 }
885 }
886
887 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
888
889 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
890
891 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
892
893 /*
894 * if there's a BPF listener, bounce a copy
895 * of this frame to him:
896 */
897 BPF_MTAP(ifp, m);
898
899 m_freem(m);
900
901 usbd_transfer_submit(xfer);
902
903 ifp->if_opackets++;
904 return;
905}
906
907void
908mos_tick(struct usb_ether *ue)
909{
910 struct mos_softc *sc = uether_getsc(ue);
911 struct mii_data *mii = GET_MII(sc);
912
913 MOS_LOCK_ASSERT(sc, MA_OWNED);
914 DPRINTF("%s: %s: enter\n", "mos", __func__);
915
916 mii_tick(mii);
917 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE &&
918 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
919 DPRINTF("%s: %s: got link\n",
920 "mos", __func__);
921 sc->mos_link++;
922 mos_start(ue);
923 }
924}
925
926
927//int
928//mos_encap(struct mos_softc *sc, struct mbuf *m, int idx)
929//{
930// struct mos_chain *c;
931// int err;
932// int length;
933//
934// c = &sc->mos_cdata.mos_tx_chain[idx];
935//
936// m_copydata(m, 0, m->m_pkthdr.len, c->mos_buf);
937// length = m->m_pkthdr.len;
938//
939// c->mos_mbuf = m;
940//
941// usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_TX],
942// c, c->mos_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
943// 10000, mos_txeof);
944//
945// /* Transmit */
946// err = usbd_transfer(c->mos_xfer);
947// if (err != USBD_IN_PROGRESS) {
948// mos_stop(sc);
949// return(EIO);
950// }
951//
952// sc->mos_cdata.mos_tx_cnt++;
953//
954// return(0);
955//}
956
957void
958mos_start(struct usb_ether *ue)
959{
960 struct mos_softc *sc = uether_getsc(ue);
961
962 /*
963 * start the USB transfers, if not already started:
964 */
965 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]);
966 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]);
967 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]);
968}
969
970void
971mos_init(struct usb_ether *ue)
972{
973 struct mos_softc *sc = uether_getsc(ue);
974 struct ifnet *ifp = uether_getifp(ue);
975 u_int8_t rxmode;
976
977 MOS_LOCK_ASSERT(sc, MA_OWNED);
978
979 /*
980 * Cancel pending I/O and free all RX/TX buffers.
981 */
982 mos_reset(sc);
983
984 /*
985 * Write MAC address
986 */
987 //mos_writemac(sc, sc->arpcom.ac_enaddr);
988
989
990
991 /* Read and set transmitter IPG values */
992 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0);
993 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1);
994 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]);
995 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]);
996
997 /* Enable receiver and transmitter, bridge controls speed/duplex mode */
998 rxmode = mos_reg_read_1(sc, MOS_CTL);
999 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB;
1000 rxmode &= ~(MOS_CTL_SLEEP);
1001
1002 /* If we want promiscuous mode, set the allframes bit. */
1003 if (ifp->if_flags & IFF_PROMISC)
1004 rxmode |= MOS_CTL_RX_PROMISC;
1005
1006 /* XXX: broadcast mode? */
1007
1008 mos_reg_write_1(sc, MOS_CTL, rxmode);
1009
1010 /* Load the multicast filter. */
1011 mos_setmulti(ue);
1012
1013 usbd_xfer_set_stall(sc->sc_xfer[MOS_ENDPT_TX]);
1014
1015 ifp->if_flags |= IFF_DRV_RUNNING;
1016 mos_start(ue);
1017}
1018
1019
1020void
1021mos_intr_callback(struct usb_xfer *xfer, usb_error_t error)
1022{
1023 struct mos_softc *sc = usbd_xfer_softc(xfer);
1024 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
1025 int actlen;
1026
1027 ifp->if_oerrors++;
1028 printf("%s: watchdog timeout\n", "mos");
1029
1030 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1031
1032 //XXX: Porting, how? mos_txeof(c->mos_xfer, c, stat);
1033}
1034
1035
1036/*
1037 * Stop the adapter and free any mbufs allocated to the
1038 * RX and TX lists.
1039 */
1040void
1041mos_stop(struct usb_ether *ue)
1042{
1043 struct mos_softc *sc = uether_getsc(ue);
1044 struct ifnet *ifp = uether_getifp(ue);
1045
1046 mos_reset(sc);
1047
1048 MOS_LOCK_ASSERT(sc, MA_OWNED);
1049 ifp->if_flags &= ~IFF_DRV_RUNNING;
1050
1051 /*
1052 * stop all the transfers, if not already stopped:
1053 */
1054 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]);
1055 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]);
1056 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]);
1057
1058 sc->mos_link = 0;
1059}
1060
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