timeout/untimeout ==> callout_*
[dragonfly.git] / sys / dev / netif / axe / if_axe.c
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1/*
2 * Copyright (c) 1997, 1998, 1999, 2000-2003
3 * Bill Paul <wpaul@windriver.com>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * $FreeBSD: src/sys/dev/usb/if_axe.c,v 1.10 2003/12/08 07:54:14 obrien Exp $
3013ac0e 33 * $DragonFly: src/sys/dev/netif/axe/if_axe.c,v 1.5 2004/07/23 07:16:24 joerg Exp $
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34 */
35/*
36 * ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
37 * LinkSys USB200M and various other adapters.
38 *
39 * Manuals available from:
40 * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF
41 * Note: you need the manual for the AX88170 chip (USB 1.x ethernet
42 * controller) to find the definitions for the RX control register.
43 * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF
44 *
45 * Written by Bill Paul <wpaul@windriver.com>
46 * Senior Engineer
47 * Wind River Systems
48 */
49
50/*
51 * The AX88172 provides USB ethernet supports at 10 and 100Mbps.
52 * It uses an external PHY (reference designs use a RealTek chip),
53 * and has a 64-bit multicast hash filter. There is some information
54 * missing from the manual which one needs to know in order to make
55 * the chip function:
56 *
57 * - You must set bit 7 in the RX control register, otherwise the
58 * chip won't receive any packets.
59 * - You must initialize all 3 IPG registers, or you won't be able
60 * to send any packets.
61 *
62 * Note that this device appears to only support loading the station
63 * address via autload from the EEPROM (i.e. there's no way to manaully
64 * set it).
65 *
66 * (Adam Weinberger wanted me to name this driver if_gir.c.)
67 */
68
69#include <sys/param.h>
70#include <sys/systm.h>
71#include <sys/sockio.h>
72#include <sys/mbuf.h>
73#include <sys/malloc.h>
74#include <sys/kernel.h>
75#include <sys/socket.h>
76
77#include <net/if.h>
78#include <net/if_arp.h>
79#include <net/ethernet.h>
80#include <net/if_dl.h>
81#include <net/if_media.h>
82
83#include <net/bpf.h>
84
85#include <sys/bus.h>
86#include <machine/bus.h>
87
88#include <bus/usb/usb.h>
89#include <bus/usb/usbdi.h>
90#include <bus/usb/usbdi_util.h>
91#include <bus/usb/usbdivar.h>
92#include <bus/usb/usbdevs.h>
93#include <bus/usb/usb_ethersubr.h>
94
95#include "../mii_layer//mii.h"
96#include "../mii_layer/miivar.h"
97
98/* "controller miibus0" required. See GENERIC if you get errors here. */
99#include "miibus_if.h"
100
101#include "if_axereg.h"
102
103/*
104 * Various supported device vendors/products.
105 */
106Static struct axe_type axe_devs[] = {
107 { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172 },
108 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100 },
109 { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS_USB200M },
110 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120 },
111 { 0, 0 }
112};
113
114Static struct usb_qdat axe_qdat;
115
116Static int axe_match(device_ptr_t);
117Static int axe_attach(device_ptr_t);
118Static int axe_detach(device_ptr_t);
119
120Static int axe_tx_list_init(struct axe_softc *);
121Static int axe_rx_list_init(struct axe_softc *);
122Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *);
123Static int axe_encap(struct axe_softc *, struct mbuf *, int);
124Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
125Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
126Static void axe_tick(void *);
127Static void axe_rxstart(struct ifnet *);
128Static void axe_start(struct ifnet *);
129Static int axe_ioctl(struct ifnet *, u_long, caddr_t);
130Static void axe_init(void *);
131Static void axe_stop(struct axe_softc *);
132Static void axe_watchdog(struct ifnet *);
133Static void axe_shutdown(device_ptr_t);
134Static int axe_miibus_readreg(device_ptr_t, int, int);
135Static int axe_miibus_writereg(device_ptr_t, int, int, int);
136Static void axe_miibus_statchg(device_ptr_t);
137Static int axe_cmd(struct axe_softc *, int, int, int, void *);
138Static int axe_ifmedia_upd(struct ifnet *);
139Static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *);
140
141Static void axe_setmulti(struct axe_softc *);
142Static uint32_t axe_mchash(const uint8_t *);
143
144Static device_method_t axe_methods[] = {
145 /* Device interface */
146 DEVMETHOD(device_probe, axe_match),
147 DEVMETHOD(device_attach, axe_attach),
148 DEVMETHOD(device_detach, axe_detach),
149 DEVMETHOD(device_shutdown, axe_shutdown),
150
151 /* bus interface */
152 DEVMETHOD(bus_print_child, bus_generic_print_child),
153 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
154
155 /* MII interface */
156 DEVMETHOD(miibus_readreg, axe_miibus_readreg),
157 DEVMETHOD(miibus_writereg, axe_miibus_writereg),
158 DEVMETHOD(miibus_statchg, axe_miibus_statchg),
159
160 { 0, 0 }
161};
162
163Static driver_t axe_driver = {
164 "axe",
165 axe_methods,
166 sizeof(struct axe_softc)
167};
168
169Static devclass_t axe_devclass;
170
171DRIVER_MODULE(axe, uhub, axe_driver, axe_devclass, usbd_driver_load, 0);
172DRIVER_MODULE(miibus, axe, miibus_driver, miibus_devclass, 0, 0);
173MODULE_DEPEND(axe, usb, 1, 1, 1);
174MODULE_DEPEND(axe, miibus, 1, 1, 1);
175
176Static int
177axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf)
178{
179 usb_device_request_t req;
180 usbd_status err;
181
182 if (sc->axe_dying)
183 return(0);
184
185 if (AXE_CMD_DIR(cmd))
186 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
187 else
188 req.bmRequestType = UT_READ_VENDOR_DEVICE;
189 req.bRequest = AXE_CMD_CMD(cmd);
190 USETW(req.wValue, val);
191 USETW(req.wIndex, index);
192 USETW(req.wLength, AXE_CMD_LEN(cmd));
193
194 err = usbd_do_request(sc->axe_udev, &req, buf);
195
196 if (err)
197 return(-1);
198
199 return(0);
200}
201
202Static int
203axe_miibus_readreg(device_ptr_t dev, int phy, int reg)
204{
205 struct axe_softc *sc = USBGETSOFTC(dev);
206 usbd_status err;
207 u_int16_t val;
208
209 if (sc->axe_dying)
210 return(0);
211
212#ifdef notdef
213 /*
214 * The chip tells us the MII address of any supported
215 * PHYs attached to the chip, so only read from those.
216 */
217
218 if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0])
219 return (0);
220
221 if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1])
222 return (0);
223#endif
224 if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy)
225 return (0);
226
227 AXE_LOCK(sc);
228 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
229 err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val);
230 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
231 AXE_UNLOCK(sc);
232
233 if (err) {
234 printf("axe%d: read PHY failed\n", sc->axe_unit);
235 return(-1);
236 }
237
238 if (val)
239 sc->axe_phyaddrs[0] = phy;
240
241 return (val);
242}
243
244Static int
245axe_miibus_writereg(device_ptr_t dev, int phy, int reg, int val)
246{
247 struct axe_softc *sc = USBGETSOFTC(dev);
248 usbd_status err;
249
250 if (sc->axe_dying)
251 return(0);
252
253 AXE_LOCK(sc);
254 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
255 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val);
256 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
257 AXE_UNLOCK(sc);
258
259 if (err) {
260 printf("axe%d: write PHY failed\n", sc->axe_unit);
261 return(-1);
262 }
263
264 return (0);
265}
266
267Static void
268axe_miibus_statchg(device_ptr_t dev)
269{
270#ifdef notdef
271 struct axe_softc *sc = USBGETSOFTC(dev);
272 struct mii_data *mii = GET_MII(sc);
273#endif
274 /* doesn't seem to be necessary */
275
276 return;
277}
278
279/*
280 * Set media options.
281 */
282Static int
283axe_ifmedia_upd(struct ifnet *ifp)
284{
285 struct axe_softc *sc = ifp->if_softc;
286 struct mii_data *mii = GET_MII(sc);
287
288 sc->axe_link = 0;
289 if (mii->mii_instance) {
290 struct mii_softc *miisc;
291 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
292 mii_phy_reset(miisc);
293 }
294 mii_mediachg(mii);
295
296 return (0);
297}
298
299/*
300 * Report current media status.
301 */
302Static void
303axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
304{
305 struct axe_softc *sc = ifp->if_softc;
306 struct mii_data *mii = GET_MII(sc);
307
308 mii_pollstat(mii);
309 ifmr->ifm_active = mii->mii_media_active;
310 ifmr->ifm_status = mii->mii_media_status;
311
312 return;
313}
314
315Static uint32_t
316axe_mchash(const uint8_t *addr)
317{
318 uint32_t crc, carry;
319 int idx, bit;
320 uint8_t data;
321
322 /* Compute CRC for the address value. */
323 crc = 0xFFFFFFFF; /* initial value */
324
325 for (idx = 0; idx < 6; idx++) {
326 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) {
327 carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01);
328 crc <<= 1;
329 if (carry)
330 crc = (crc ^ 0x04c11db6) | carry;
331 }
332 }
333
334 /* return the filter bit position */
335 return((crc >> 26) & 0x0000003F);
336}
337
338Static void
339axe_setmulti(struct axe_softc *sc)
340{
341 struct ifnet *ifp;
342 struct ifmultiaddr *ifma;
343 u_int32_t h = 0;
344 u_int16_t rxmode;
345 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
346
347 ifp = &sc->arpcom.ac_if;
348
349 AXE_LOCK(sc);
350 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode);
351
352 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
353 rxmode |= AXE_RXCMD_ALLMULTI;
354 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
355 AXE_UNLOCK(sc);
356 return;
357 } else
358 rxmode &= ~AXE_RXCMD_ALLMULTI;
359
360 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
361 if (ifma->ifma_addr->sa_family != AF_LINK)
362 continue;
363 h = axe_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
364 hashtbl[h / 8] |= 1 << (h % 8);
365 }
366
367 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl);
368 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
369 AXE_UNLOCK(sc);
370
371 return;
372}
373
374Static void
375axe_reset(struct axe_softc *sc)
376{
377 if (sc->axe_dying)
378 return;
379
380 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1) ||
381 usbd_device2interface_handle(sc->axe_udev, AXE_IFACE_IDX,
382 &sc->axe_iface)) {
383 printf("axe%d: getting interface handle failed\n",
384 sc->axe_unit);
385 }
386
387 /* Wait a little while for the chip to get its brains in order. */
388 DELAY(1000);
389 return;
390}
391
392/*
393 * Probe for a AX88172 chip.
394 */
395USB_MATCH(axe)
396{
397 USB_MATCH_START(axe, uaa);
398 struct axe_type *t;
399
400 if (!uaa->iface)
401 return(UMATCH_NONE);
402
403 t = axe_devs;
404 while(t->axe_vid) {
405 if (uaa->vendor == t->axe_vid &&
406 uaa->product == t->axe_did) {
407 return(UMATCH_VENDOR_PRODUCT);
408 }
409 t++;
410 }
411
412 return(UMATCH_NONE);
413}
414
415/*
416 * Attach the interface. Allocate softc structures, do ifmedia
417 * setup and ethernet/BPF attach.
418 */
419USB_ATTACH(axe)
420{
421 USB_ATTACH_START(axe, sc, uaa);
422 char devinfo[1024];
423 u_char eaddr[ETHER_ADDR_LEN];
424 struct ifnet *ifp;
425 usb_interface_descriptor_t *id;
426 usb_endpoint_descriptor_t *ed;
427 int i;
428
429 bzero(sc, sizeof(struct axe_softc));
430 sc->axe_udev = uaa->device;
431 sc->axe_dev = self;
432 sc->axe_unit = device_get_unit(self);
433
434 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1)) {
435 printf("axe%d: getting interface handle failed\n",
436 sc->axe_unit);
437 USB_ATTACH_ERROR_RETURN;
438 }
439
440 if (usbd_device2interface_handle(uaa->device,
441 AXE_IFACE_IDX, &sc->axe_iface)) {
442 printf("axe%d: getting interface handle failed\n",
443 sc->axe_unit);
444 USB_ATTACH_ERROR_RETURN;
445 }
446
447 id = usbd_get_interface_descriptor(sc->axe_iface);
448
449 usbd_devinfo(uaa->device, 0, devinfo);
450 device_set_desc_copy(self, devinfo);
451 printf("%s: %s\n", USBDEVNAME(self), devinfo);
452
453 /* Find endpoints. */
454 for (i = 0; i < id->bNumEndpoints; i++) {
455 ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i);
456 if (!ed) {
457 printf("axe%d: couldn't get ep %d\n",
458 sc->axe_unit, i);
459 USB_ATTACH_ERROR_RETURN;
460 }
461 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
462 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
463 sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress;
464 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
465 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
466 sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress;
467 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
468 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
469 sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress;
470 }
471 }
472
473 mtx_init(&sc->axe_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK,
474 MTX_DEF | MTX_RECURSE);
475 AXE_LOCK(sc);
476
477 /*
478 * Get station address.
479 */
480 axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr);
481
482 /*
483 * Load IPG values and PHY indexes.
484 */
485 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs);
486 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs);
487
488 /*
489 * Work around broken adapters that appear to lie about
490 * their PHY addresses.
491 */
492 sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF;
493
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494 ifp = &sc->arpcom.ac_if;
495 ifp->if_softc = sc;
496 if_initname(ifp, "axe", sc->axe_unit);
497 ifp->if_mtu = ETHERMTU;
498 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
499 ifp->if_ioctl = axe_ioctl;
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500 ifp->if_start = axe_start;
501 ifp->if_watchdog = axe_watchdog;
502 ifp->if_init = axe_init;
503 ifp->if_baudrate = 10000000;
504 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
505
506 axe_qdat.ifp = ifp;
507 axe_qdat.if_rxstart = axe_rxstart;
508
509 if (mii_phy_probe(self, &sc->axe_miibus,
510 axe_ifmedia_upd, axe_ifmedia_sts)) {
511 printf("axe%d: MII without any PHY!\n", sc->axe_unit);
512 AXE_UNLOCK(sc);
513 mtx_destroy(&sc->axe_mtx);
514 USB_ATTACH_ERROR_RETURN;
515 }
516
517 /*
518 * Call MI attach routine.
519 */
520
521 ether_ifattach(ifp, eaddr);
522 callout_handle_init(&sc->axe_stat_ch);
523 usb_register_netisr();
524
525 sc->axe_dying = 0;
526
527 AXE_UNLOCK(sc);
528
529 USB_ATTACH_SUCCESS_RETURN;
530}
531
532Static int
533axe_detach(device_ptr_t dev)
534{
535 struct axe_softc *sc;
536 struct ifnet *ifp;
537
538 sc = device_get_softc(dev);
539 AXE_LOCK(sc);
540 ifp = &sc->arpcom.ac_if;
541
542 sc->axe_dying = 1;
543 untimeout(axe_tick, sc, sc->axe_stat_ch);
544 ether_ifdetach(ifp);
545
546 if (sc->axe_ep[AXE_ENDPT_TX] != NULL)
547 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
548 if (sc->axe_ep[AXE_ENDPT_RX] != NULL)
549 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
550 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL)
551 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
552
553 AXE_UNLOCK(sc);
554 mtx_destroy(&sc->axe_mtx);
555
556 return(0);
557}
558
559/*
560 * Initialize an RX descriptor and attach an MBUF cluster.
561 */
562Static int
563axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m)
564{
565 struct mbuf *m_new = NULL;
566
567 if (m == NULL) {
74f1caca 568 m_new = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
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569 if (m_new == NULL) {
570 printf("axe%d: no memory for rx list "
571 "-- packet dropped!\n", sc->axe_unit);
572 return(ENOBUFS);
573 }
574 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
575 } else {
576 m_new = m;
577 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
578 m_new->m_data = m_new->m_ext.ext_buf;
579 }
580
581 m_adj(m_new, ETHER_ALIGN);
582 c->axe_mbuf = m_new;
583
584 return(0);
585}
586
587Static int
588axe_rx_list_init(struct axe_softc *sc)
589{
590 struct axe_cdata *cd;
591 struct axe_chain *c;
592 int i;
593
594 cd = &sc->axe_cdata;
595 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
596 c = &cd->axe_rx_chain[i];
597 c->axe_sc = sc;
598 c->axe_idx = i;
599 if (axe_newbuf(sc, c, NULL) == ENOBUFS)
600 return(ENOBUFS);
601 if (c->axe_xfer == NULL) {
602 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
603 if (c->axe_xfer == NULL)
604 return(ENOBUFS);
605 }
606 }
607
608 return(0);
609}
610
611Static int
612axe_tx_list_init(struct axe_softc *sc)
613{
614 struct axe_cdata *cd;
615 struct axe_chain *c;
616 int i;
617
618 cd = &sc->axe_cdata;
619 for (i = 0; i < AXE_TX_LIST_CNT; i++) {
620 c = &cd->axe_tx_chain[i];
621 c->axe_sc = sc;
622 c->axe_idx = i;
623 c->axe_mbuf = NULL;
624 if (c->axe_xfer == NULL) {
625 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
626 if (c->axe_xfer == NULL)
627 return(ENOBUFS);
628 }
c5541aee 629 c->axe_buf = malloc(AXE_BUFSZ, M_USBDEV, M_WAITOK);
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630 if (c->axe_buf == NULL)
631 return(ENOBUFS);
632 }
633
634 return(0);
635}
636
637Static void
638axe_rxstart(struct ifnet *ifp)
639{
640 struct axe_softc *sc;
641 struct axe_chain *c;
642
643 sc = ifp->if_softc;
644 AXE_LOCK(sc);
645 c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod];
646
647 if (axe_newbuf(sc, c, NULL) == ENOBUFS) {
648 ifp->if_ierrors++;
649 AXE_UNLOCK(sc);
650 return;
651 }
652
653 /* Setup new transfer. */
654 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
655 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
656 USBD_NO_TIMEOUT, axe_rxeof);
657 usbd_transfer(c->axe_xfer);
658 AXE_UNLOCK(sc);
659
660 return;
661}
662
663/*
664 * A frame has been uploaded: pass the resulting mbuf chain up to
665 * the higher level protocols.
666 */
667Static void
668axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
669{
670 struct axe_softc *sc;
671 struct axe_chain *c;
672 struct mbuf *m;
673 struct ifnet *ifp;
674 int total_len = 0;
675
676 c = priv;
677 sc = c->axe_sc;
678 AXE_LOCK(sc);
679 ifp = &sc->arpcom.ac_if;
680
681 if (!(ifp->if_flags & IFF_RUNNING)) {
682 AXE_UNLOCK(sc);
683 return;
684 }
685
686 if (status != USBD_NORMAL_COMPLETION) {
687 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
688 AXE_UNLOCK(sc);
689 return;
690 }
691 if (usbd_ratecheck(&sc->axe_rx_notice))
692 printf("axe%d: usb error on rx: %s\n", sc->axe_unit,
693 usbd_errstr(status));
694 if (status == USBD_STALLED)
695 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_RX]);
696 goto done;
697 }
698
699 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
700
701 m = c->axe_mbuf;
702
703 if (total_len < sizeof(struct ether_header)) {
704 ifp->if_ierrors++;
705 goto done;
706 }
707
708 ifp->if_ipackets++;
709 m->m_pkthdr.rcvif = (struct ifnet *)&axe_qdat;
710 m->m_pkthdr.len = m->m_len = total_len;
711
712 /* Put the packet on the special USB input queue. */
713 usb_ether_input(m);
714 AXE_UNLOCK(sc);
715
716 return;
717done:
718 /* Setup new transfer. */
719 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
720 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
721 USBD_NO_TIMEOUT, axe_rxeof);
722 usbd_transfer(c->axe_xfer);
723 AXE_UNLOCK(sc);
724
725 return;
726}
727
728/*
729 * A frame was downloaded to the chip. It's safe for us to clean up
730 * the list buffers.
731 */
732
733Static void
734axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
735{
736 struct axe_softc *sc;
737 struct axe_chain *c;
738 struct ifnet *ifp;
739 usbd_status err;
740
741 c = priv;
742 sc = c->axe_sc;
743 AXE_LOCK(sc);
744 ifp = &sc->arpcom.ac_if;
745
746 if (status != USBD_NORMAL_COMPLETION) {
747 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
748 AXE_UNLOCK(sc);
749 return;
750 }
751 printf("axe%d: usb error on tx: %s\n", sc->axe_unit,
752 usbd_errstr(status));
753 if (status == USBD_STALLED)
754 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_TX]);
755 AXE_UNLOCK(sc);
756 return;
757 }
758
759 ifp->if_timer = 0;
760 ifp->if_flags &= ~IFF_OACTIVE;
761 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &err);
762
763 if (c->axe_mbuf != NULL) {
764 c->axe_mbuf->m_pkthdr.rcvif = ifp;
765 usb_tx_done(c->axe_mbuf);
766 c->axe_mbuf = NULL;
767 }
768
769 if (err)
770 ifp->if_oerrors++;
771 else
772 ifp->if_opackets++;
773
774 AXE_UNLOCK(sc);
775
776 return;
777}
778
779Static void
780axe_tick(void *xsc)
781{
782 struct axe_softc *sc;
783 struct ifnet *ifp;
784 struct mii_data *mii;
785
786 sc = xsc;
787
788 if (sc == NULL)
789 return;
790
791 AXE_LOCK(sc);
792
793 ifp = &sc->arpcom.ac_if;
794 mii = GET_MII(sc);
795 if (mii == NULL) {
796 AXE_UNLOCK(sc);
797 return;
798 }
799
800 mii_tick(mii);
801 if (!sc->axe_link && mii->mii_media_status & IFM_ACTIVE &&
802 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
803 sc->axe_link++;
804 if (ifp->if_snd.ifq_head != NULL)
805 axe_start(ifp);
806 }
807
808 sc->axe_stat_ch = timeout(axe_tick, sc, hz);
809
810 AXE_UNLOCK(sc);
811
812 return;
813}
814
815Static int
816axe_encap(struct axe_softc *sc, struct mbuf *m, int idx)
817{
818 struct axe_chain *c;
819 usbd_status err;
820
821 c = &sc->axe_cdata.axe_tx_chain[idx];
822
823 /*
824 * Copy the mbuf data into a contiguous buffer, leaving two
825 * bytes at the beginning to hold the frame length.
826 */
827 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf);
828 c->axe_mbuf = m;
829
830 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX],
831 c, c->axe_buf, m->m_pkthdr.len, 0, 10000, axe_txeof);
832
833 /* Transmit */
834 err = usbd_transfer(c->axe_xfer);
835 if (err != USBD_IN_PROGRESS) {
836 axe_stop(sc);
837 return(EIO);
838 }
839
840 sc->axe_cdata.axe_tx_cnt++;
841
842 return(0);
843}
844
845Static void
846axe_start(struct ifnet *ifp)
847{
848 struct axe_softc *sc;
849 struct mbuf *m_head = NULL;
850
851 sc = ifp->if_softc;
852 AXE_LOCK(sc);
853
854 if (!sc->axe_link) {
855 AXE_UNLOCK(sc);
856 return;
857 }
858
859 if (ifp->if_flags & IFF_OACTIVE) {
860 AXE_UNLOCK(sc);
861 return;
862 }
863
864 IF_DEQUEUE(&ifp->if_snd, m_head);
865 if (m_head == NULL) {
866 AXE_UNLOCK(sc);
867 return;
868 }
869
870 if (axe_encap(sc, m_head, 0)) {
871 IF_PREPEND(&ifp->if_snd, m_head);
872 ifp->if_flags |= IFF_OACTIVE;
873 AXE_UNLOCK(sc);
874 return;
875 }
876
877 /*
878 * If there's a BPF listener, bounce a copy of this frame
879 * to him.
880 */
881 BPF_MTAP(ifp, m_head);
882
883 ifp->if_flags |= IFF_OACTIVE;
884
885 /*
886 * Set a timeout in case the chip goes out to lunch.
887 */
888 ifp->if_timer = 5;
889 AXE_UNLOCK(sc);
890
891 return;
892}
893
894Static void
895axe_init(void *xsc)
896{
897 struct axe_softc *sc = xsc;
898 struct ifnet *ifp = &sc->arpcom.ac_if;
899 struct axe_chain *c;
900 usbd_status err;
901 int i;
902 int rxmode;
903
904 if (ifp->if_flags & IFF_RUNNING)
905 return;
906
907 AXE_LOCK(sc);
908
909 /*
910 * Cancel pending I/O and free all RX/TX buffers.
911 */
912
913 axe_reset(sc);
914
915#ifdef notdef
916 /* Set MAC address */
917 axe_mac(sc, sc->arpcom.ac_enaddr, 1);
918#endif
919
920 /* Enable RX logic. */
921
922 /* Init TX ring. */
923 if (axe_tx_list_init(sc) == ENOBUFS) {
924 printf("axe%d: tx list init failed\n", sc->axe_unit);
925 AXE_UNLOCK(sc);
926 return;
927 }
928
929 /* Init RX ring. */
930 if (axe_rx_list_init(sc) == ENOBUFS) {
931 printf("axe%d: rx list init failed\n", sc->axe_unit);
932 AXE_UNLOCK(sc);
933 return;
934 }
935
936 /* Set transmitter IPG values */
937 axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL);
938 axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL);
939 axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL);
940
941 /* Enable receiver, set RX mode */
942 rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE;
943
944 /* If we want promiscuous mode, set the allframes bit. */
945 if (ifp->if_flags & IFF_PROMISC)
946 rxmode |= AXE_RXCMD_PROMISC;
947
948 if (ifp->if_flags & IFF_BROADCAST)
949 rxmode |= AXE_RXCMD_BROADCAST;
950
951 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
952
953 /* Load the multicast filter. */
954 axe_setmulti(sc);
955
956 /* Open RX and TX pipes. */
957 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX],
958 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]);
959 if (err) {
960 printf("axe%d: open rx pipe failed: %s\n",
961 sc->axe_unit, usbd_errstr(err));
962 AXE_UNLOCK(sc);
963 return;
964 }
965
966 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX],
967 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]);
968 if (err) {
969 printf("axe%d: open tx pipe failed: %s\n",
970 sc->axe_unit, usbd_errstr(err));
971 AXE_UNLOCK(sc);
972 return;
973 }
974
975 /* Start up the receive pipe. */
976 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
977 c = &sc->axe_cdata.axe_rx_chain[i];
978 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
979 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ,
980 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof);
981 usbd_transfer(c->axe_xfer);
982 }
983
984 ifp->if_flags |= IFF_RUNNING;
985 ifp->if_flags &= ~IFF_OACTIVE;
986
987 AXE_UNLOCK(sc);
988
989 sc->axe_stat_ch = timeout(axe_tick, sc, hz);
990
991 return;
992}
993
994Static int
995axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
996{
997 struct axe_softc *sc = ifp->if_softc;
998 struct ifreq *ifr = (struct ifreq *)data;
999 struct mii_data *mii;
1000 u_int16_t rxmode;
1001 int error = 0;
1002
1003 switch(command) {
1004 case SIOCSIFFLAGS:
1005 if (ifp->if_flags & IFF_UP) {
1006 if (ifp->if_flags & IFF_RUNNING &&
1007 ifp->if_flags & IFF_PROMISC &&
1008 !(sc->axe_if_flags & IFF_PROMISC)) {
1009 AXE_LOCK(sc);
1010 axe_cmd(sc, AXE_CMD_RXCTL_READ,
1011 0, 0, (void *)&rxmode);
1012 rxmode |= AXE_RXCMD_PROMISC;
1013 axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
1014 0, rxmode, NULL);
1015 AXE_UNLOCK(sc);
1016 axe_setmulti(sc);
1017 } else if (ifp->if_flags & IFF_RUNNING &&
1018 !(ifp->if_flags & IFF_PROMISC) &&
1019 sc->axe_if_flags & IFF_PROMISC) {
1020 AXE_LOCK(sc);
1021 axe_cmd(sc, AXE_CMD_RXCTL_READ,
1022 0, 0, (void *)&rxmode);
1023 rxmode &= ~AXE_RXCMD_PROMISC;
1024 axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
1025 0, rxmode, NULL);
1026 AXE_UNLOCK(sc);
1027 axe_setmulti(sc);
1028 } else if (!(ifp->if_flags & IFF_RUNNING))
1029 axe_init(sc);
1030 } else {
1031 if (ifp->if_flags & IFF_RUNNING)
1032 axe_stop(sc);
1033 }
1034 sc->axe_if_flags = ifp->if_flags;
1035 error = 0;
1036 break;
1037 case SIOCADDMULTI:
1038 case SIOCDELMULTI:
1039 axe_setmulti(sc);
1040 error = 0;
1041 break;
1042 case SIOCGIFMEDIA:
1043 case SIOCSIFMEDIA:
1044 mii = GET_MII(sc);
1045 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
1046 break;
1047
1048 default:
1049 error = ether_ioctl(ifp, command, data);
1050 break;
1051 }
1052
1053 AXE_UNLOCK(sc);
1054
1055 return(error);
1056}
1057
1058Static void
1059axe_watchdog(struct ifnet *ifp)
1060{
1061 struct axe_softc *sc;
1062 struct axe_chain *c;
1063 usbd_status stat;
1064
1065 sc = ifp->if_softc;
1066 AXE_LOCK(sc);
1067
1068 ifp->if_oerrors++;
1069 printf("axe%d: watchdog timeout\n", sc->axe_unit);
1070
1071 c = &sc->axe_cdata.axe_tx_chain[0];
1072 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat);
1073 axe_txeof(c->axe_xfer, c, stat);
1074
1075 AXE_UNLOCK(sc);
1076
1077 if (ifp->if_snd.ifq_head != NULL)
1078 axe_start(ifp);
1079
1080 return;
1081}
1082
1083/*
1084 * Stop the adapter and free any mbufs allocated to the
1085 * RX and TX lists.
1086 */
1087Static void
1088axe_stop(struct axe_softc *sc)
1089{
1090 usbd_status err;
1091 struct ifnet *ifp;
1092 int i;
1093
1094 AXE_LOCK(sc);
1095
1096 axe_reset(sc);
1097
1098 ifp = &sc->arpcom.ac_if;
1099 ifp->if_timer = 0;
1100
1101 untimeout(axe_tick, sc, sc->axe_stat_ch);
1102
1103 /* Stop transfers. */
1104 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) {
1105 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
1106 if (err) {
1107 printf("axe%d: abort rx pipe failed: %s\n",
1108 sc->axe_unit, usbd_errstr(err));
1109 }
1110 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]);
1111 if (err) {
1112 printf("axe%d: close rx pipe failed: %s\n",
1113 sc->axe_unit, usbd_errstr(err));
1114 }
1115 sc->axe_ep[AXE_ENDPT_RX] = NULL;
1116 }
1117
1118 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) {
1119 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
1120 if (err) {
1121 printf("axe%d: abort tx pipe failed: %s\n",
1122 sc->axe_unit, usbd_errstr(err));
1123 }
1124 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]);
1125 if (err) {
1126 printf("axe%d: close tx pipe failed: %s\n",
1127 sc->axe_unit, usbd_errstr(err));
1128 }
1129 sc->axe_ep[AXE_ENDPT_TX] = NULL;
1130 }
1131
1132 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) {
1133 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
1134 if (err) {
1135 printf("axe%d: abort intr pipe failed: %s\n",
1136 sc->axe_unit, usbd_errstr(err));
1137 }
1138 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
1139 if (err) {
1140 printf("axe%d: close intr pipe failed: %s\n",
1141 sc->axe_unit, usbd_errstr(err));
1142 }
1143 sc->axe_ep[AXE_ENDPT_INTR] = NULL;
1144 }
1145
1146 /* Free RX resources. */
1147 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
1148 if (sc->axe_cdata.axe_rx_chain[i].axe_buf != NULL) {
1149 free(sc->axe_cdata.axe_rx_chain[i].axe_buf, M_USBDEV);
1150 sc->axe_cdata.axe_rx_chain[i].axe_buf = NULL;
1151 }
1152 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) {
1153 m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf);
1154 sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL;
1155 }
1156 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) {
1157 usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer);
1158 sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL;
1159 }
1160 }
1161
1162 /* Free TX resources. */
1163 for (i = 0; i < AXE_TX_LIST_CNT; i++) {
1164 if (sc->axe_cdata.axe_tx_chain[i].axe_buf != NULL) {
1165 free(sc->axe_cdata.axe_tx_chain[i].axe_buf, M_USBDEV);
1166 sc->axe_cdata.axe_tx_chain[i].axe_buf = NULL;
1167 }
1168 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) {
1169 m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf);
1170 sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL;
1171 }
1172 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) {
1173 usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer);
1174 sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL;
1175 }
1176 }
1177
1178 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1179 sc->axe_link = 0;
1180 AXE_UNLOCK(sc);
1181
1182 return;
1183}
1184
1185/*
1186 * Stop all chip I/O so that the kernel's probe routines don't
1187 * get confused by errant DMAs when rebooting.
1188 */
1189Static void
1190axe_shutdown(device_ptr_t dev)
1191{
1192 struct axe_softc *sc;
1193
1194 sc = device_get_softc(dev);
1195
1196 axe_stop(sc);
1197
1198 return;
1199}