1 | /* $NetBSD: if_upl.c,v 1.56 2016/07/07 06:55:42 msaitoh Exp $ */ |
2 | /* |
3 | * Copyright (c) 2000 The NetBSD Foundation, Inc. |
4 | * All rights reserved. |
5 | * |
6 | * This code is derived from software contributed to The NetBSD Foundation |
7 | * by Lennart Augustsson (lennart@augustsson.net) at |
8 | * Carlstedt Research & Technology. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | /* |
33 | * Prolific PL2301/PL2302 driver |
34 | */ |
35 | |
36 | #include <sys/cdefs.h> |
37 | __KERNEL_RCSID(0, "$NetBSD: if_upl.c,v 1.56 2016/07/07 06:55:42 msaitoh Exp $" ); |
38 | |
39 | #ifdef _KERNEL_OPT |
40 | #include "opt_inet.h" |
41 | #endif |
42 | |
43 | #include <sys/param.h> |
44 | #include <sys/systm.h> |
45 | #include <sys/callout.h> |
46 | #include <sys/sockio.h> |
47 | #include <sys/mbuf.h> |
48 | #include <sys/kernel.h> |
49 | #include <sys/socket.h> |
50 | |
51 | #include <sys/device.h> |
52 | #include <sys/rndsource.h> |
53 | |
54 | #include <net/if.h> |
55 | #include <net/if_types.h> |
56 | #include <net/if_dl.h> |
57 | #include <net/netisr.h> |
58 | |
59 | #include <net/bpf.h> |
60 | |
61 | #ifdef INET |
62 | #include <netinet/in.h> |
63 | #include <netinet/in_var.h> |
64 | #include <netinet/if_inarp.h> |
65 | #endif |
66 | |
67 | |
68 | #include <dev/usb/usb.h> |
69 | #include <dev/usb/usbdi.h> |
70 | #include <dev/usb/usbdi_util.h> |
71 | #include <dev/usb/usbdevs.h> |
72 | |
73 | /* |
74 | * 7 6 5 4 3 2 1 0 |
75 | * tx rx 1 0 |
76 | * 1110 0000 rxdata |
77 | * 1010 0000 idle |
78 | * 0010 0000 tx over |
79 | * 0110 tx over + rxd |
80 | */ |
81 | |
82 | #define UPL_RXDATA 0x40 |
83 | #define UPL_TXOK 0x80 |
84 | |
85 | #define UPL_INTR_PKTLEN 1 |
86 | |
87 | #define UPL_CONFIG_NO 1 |
88 | #define UPL_IFACE_IDX 0 |
89 | |
90 | /***/ |
91 | |
92 | #define UPL_INTR_INTERVAL 20 |
93 | |
94 | #define UPL_BUFSZ 1024 |
95 | |
96 | #define UPL_RX_FRAMES 1 |
97 | #define UPL_TX_FRAMES 1 |
98 | |
99 | #define UPL_RX_LIST_CNT 1 |
100 | #define UPL_TX_LIST_CNT 1 |
101 | |
102 | #define UPL_ENDPT_RX 0x0 |
103 | #define UPL_ENDPT_TX 0x1 |
104 | #define UPL_ENDPT_INTR 0x2 |
105 | #define UPL_ENDPT_MAX 0x3 |
106 | |
107 | struct upl_type { |
108 | uint16_t upl_vid; |
109 | uint16_t upl_did; |
110 | }; |
111 | |
112 | struct upl_softc; |
113 | |
114 | struct upl_chain { |
115 | struct upl_softc *upl_sc; |
116 | struct usbd_xfer *upl_xfer; |
117 | char *upl_buf; |
118 | struct mbuf *upl_mbuf; |
119 | int upl_idx; |
120 | }; |
121 | |
122 | struct upl_cdata { |
123 | struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT]; |
124 | struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT]; |
125 | int upl_tx_prod; |
126 | int upl_tx_cons; |
127 | int upl_tx_cnt; |
128 | int upl_rx_prod; |
129 | }; |
130 | |
131 | struct upl_softc { |
132 | device_t sc_dev; |
133 | |
134 | struct ifnet sc_if; |
135 | krndsource_t sc_rnd_source; |
136 | |
137 | struct callout sc_stat_ch; |
138 | |
139 | struct usbd_device * sc_udev; |
140 | struct usbd_interface * sc_iface; |
141 | uint16_t sc_vendor; |
142 | uint16_t sc_product; |
143 | int sc_ed[UPL_ENDPT_MAX]; |
144 | struct usbd_pipe * sc_ep[UPL_ENDPT_MAX]; |
145 | struct upl_cdata sc_cdata; |
146 | |
147 | uByte sc_ibuf; |
148 | |
149 | char sc_dying; |
150 | char sc_attached; |
151 | u_int sc_rx_errs; |
152 | struct timeval sc_rx_notice; |
153 | u_int sc_intr_errs; |
154 | }; |
155 | |
156 | #ifdef UPL_DEBUG |
157 | #define DPRINTF(x) if (upldebug) printf x |
158 | #define DPRINTFN(n,x) if (upldebug >= (n)) printf x |
159 | int upldebug = 0; |
160 | #else |
161 | #define DPRINTF(x) |
162 | #define DPRINTFN(n,x) |
163 | #endif |
164 | |
165 | /* |
166 | * Various supported device vendors/products. |
167 | */ |
168 | Static struct upl_type sc_devs[] = { |
169 | { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 }, |
170 | { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 }, |
171 | { 0, 0 } |
172 | }; |
173 | |
174 | int upl_match(device_t, cfdata_t, void *); |
175 | void upl_attach(device_t, device_t, void *); |
176 | int upl_detach(device_t, int); |
177 | int upl_activate(device_t, enum devact); |
178 | extern struct cfdriver upl_cd; |
179 | CFATTACH_DECL_NEW(upl, sizeof(struct upl_softc), upl_match, upl_attach, |
180 | upl_detach, upl_activate); |
181 | |
182 | Static int upl_openpipes(struct upl_softc *); |
183 | Static int upl_tx_list_init(struct upl_softc *); |
184 | Static int upl_rx_list_init(struct upl_softc *); |
185 | Static int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *); |
186 | Static int upl_send(struct upl_softc *, struct mbuf *, int); |
187 | Static void upl_intr(struct usbd_xfer *, void *, usbd_status); |
188 | Static void upl_rxeof(struct usbd_xfer *, void *, usbd_status); |
189 | Static void upl_txeof(struct usbd_xfer *, void *, usbd_status); |
190 | Static void upl_start(struct ifnet *); |
191 | Static int upl_ioctl(struct ifnet *, u_long, void *); |
192 | Static void upl_init(void *); |
193 | Static void upl_stop(struct upl_softc *); |
194 | Static void upl_watchdog(struct ifnet *); |
195 | |
196 | Static int upl_output(struct ifnet *, struct mbuf *, const struct sockaddr *, |
197 | const struct rtentry *); |
198 | Static void upl_input(struct ifnet *, struct mbuf *); |
199 | |
200 | /* |
201 | * Probe for a Prolific chip. |
202 | */ |
203 | int |
204 | upl_match(device_t parent, cfdata_t match, void *aux) |
205 | { |
206 | struct usb_attach_arg *uaa = aux; |
207 | struct upl_type *t; |
208 | |
209 | for (t = sc_devs; t->upl_vid != 0; t++) |
210 | if (uaa->uaa_vendor == t->upl_vid && uaa->uaa_product == t->upl_did) |
211 | return UMATCH_VENDOR_PRODUCT; |
212 | |
213 | return UMATCH_NONE; |
214 | } |
215 | |
216 | void |
217 | upl_attach(device_t parent, device_t self, void *aux) |
218 | { |
219 | struct upl_softc *sc = device_private(self); |
220 | struct usb_attach_arg *uaa = aux; |
221 | char *devinfop; |
222 | int s; |
223 | struct usbd_device * dev = uaa->uaa_device; |
224 | struct usbd_interface * iface; |
225 | usbd_status err; |
226 | struct ifnet *ifp; |
227 | usb_interface_descriptor_t *id; |
228 | usb_endpoint_descriptor_t *ed; |
229 | int i; |
230 | |
231 | DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p" , sc, dev)); |
232 | |
233 | sc->sc_dev = self; |
234 | |
235 | aprint_naive("\n" ); |
236 | aprint_normal("\n" ); |
237 | |
238 | devinfop = usbd_devinfo_alloc(dev, 0); |
239 | aprint_normal_dev(self, "%s\n" , devinfop); |
240 | usbd_devinfo_free(devinfop); |
241 | |
242 | err = usbd_set_config_no(dev, UPL_CONFIG_NO, 1); |
243 | if (err) { |
244 | aprint_error_dev(self, "failed to set configuration" |
245 | ", err=%s\n" , usbd_errstr(err)); |
246 | return; |
247 | } |
248 | |
249 | sc->sc_udev = dev; |
250 | sc->sc_product = uaa->uaa_product; |
251 | sc->sc_vendor = uaa->uaa_vendor; |
252 | |
253 | err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface); |
254 | if (err) { |
255 | aprint_error_dev(self, "getting interface handle failed\n" ); |
256 | return; |
257 | } |
258 | |
259 | sc->sc_iface = iface; |
260 | id = usbd_get_interface_descriptor(iface); |
261 | |
262 | /* Find endpoints. */ |
263 | for (i = 0; i < id->bNumEndpoints; i++) { |
264 | ed = usbd_interface2endpoint_descriptor(iface, i); |
265 | if (ed == NULL) { |
266 | aprint_error_dev(self, "couldn't get ep %d\n" , i); |
267 | return; |
268 | } |
269 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
270 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
271 | sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress; |
272 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && |
273 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
274 | sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress; |
275 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
276 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { |
277 | sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress; |
278 | } |
279 | } |
280 | |
281 | if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 || |
282 | sc->sc_ed[UPL_ENDPT_INTR] == 0) { |
283 | aprint_error_dev(self, "missing endpoint\n" ); |
284 | return; |
285 | } |
286 | |
287 | s = splnet(); |
288 | |
289 | /* Initialize interface info.*/ |
290 | ifp = &sc->sc_if; |
291 | ifp->if_softc = sc; |
292 | ifp->if_mtu = UPL_BUFSZ; |
293 | ifp->if_flags = IFF_POINTOPOINT | IFF_NOARP | IFF_SIMPLEX; |
294 | ifp->if_ioctl = upl_ioctl; |
295 | ifp->if_start = upl_start; |
296 | ifp->if_watchdog = upl_watchdog; |
297 | strncpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); |
298 | |
299 | ifp->if_type = IFT_OTHER; |
300 | ifp->if_addrlen = 0; |
301 | ifp->if_hdrlen = 0; |
302 | ifp->if_output = upl_output; |
303 | ifp->_if_input = upl_input; |
304 | ifp->if_baudrate = 12000000; |
305 | ifp->if_dlt = DLT_RAW; |
306 | IFQ_SET_READY(&ifp->if_snd); |
307 | |
308 | /* Attach the interface. */ |
309 | if_initialize(ifp); |
310 | if_register(ifp); |
311 | if_alloc_sadl(ifp); |
312 | |
313 | bpf_attach(ifp, DLT_RAW, 0); |
314 | rnd_attach_source(&sc->sc_rnd_source, device_xname(sc->sc_dev), |
315 | RND_TYPE_NET, RND_FLAG_DEFAULT); |
316 | |
317 | sc->sc_attached = 1; |
318 | splx(s); |
319 | |
320 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
321 | |
322 | return; |
323 | } |
324 | |
325 | int |
326 | upl_detach(device_t self, int flags) |
327 | { |
328 | struct upl_softc *sc = device_private(self); |
329 | struct ifnet *ifp = &sc->sc_if; |
330 | int s; |
331 | |
332 | DPRINTFN(2,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
333 | |
334 | s = splusb(); |
335 | |
336 | if (!sc->sc_attached) { |
337 | /* Detached before attached finished, so just bail out. */ |
338 | splx(s); |
339 | return 0; |
340 | } |
341 | |
342 | if (ifp->if_flags & IFF_RUNNING) |
343 | upl_stop(sc); |
344 | |
345 | rnd_detach_source(&sc->sc_rnd_source); |
346 | bpf_detach(ifp); |
347 | |
348 | if_detach(ifp); |
349 | |
350 | #ifdef DIAGNOSTIC |
351 | if (sc->sc_ep[UPL_ENDPT_TX] != NULL || |
352 | sc->sc_ep[UPL_ENDPT_RX] != NULL || |
353 | sc->sc_ep[UPL_ENDPT_INTR] != NULL) |
354 | aprint_debug_dev(self, "detach has active endpoints\n" ); |
355 | #endif |
356 | |
357 | sc->sc_attached = 0; |
358 | splx(s); |
359 | |
360 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
361 | |
362 | return 0; |
363 | } |
364 | |
365 | int |
366 | upl_activate(device_t self, enum devact act) |
367 | { |
368 | struct upl_softc *sc = device_private(self); |
369 | |
370 | DPRINTFN(2,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
371 | |
372 | switch (act) { |
373 | case DVACT_DEACTIVATE: |
374 | /* Deactivate the interface. */ |
375 | if_deactivate(&sc->sc_if); |
376 | sc->sc_dying = 1; |
377 | return 0; |
378 | default: |
379 | return EOPNOTSUPP; |
380 | } |
381 | } |
382 | |
383 | /* |
384 | * Initialize an RX descriptor and attach an MBUF cluster. |
385 | */ |
386 | Static int |
387 | upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m) |
388 | { |
389 | struct mbuf *m_new = NULL; |
390 | |
391 | DPRINTFN(8,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
392 | |
393 | if (m == NULL) { |
394 | MGETHDR(m_new, M_DONTWAIT, MT_DATA); |
395 | if (m_new == NULL) { |
396 | printf("%s: no memory for rx list " |
397 | "-- packet dropped!\n" , device_xname(sc->sc_dev)); |
398 | return ENOBUFS; |
399 | } |
400 | |
401 | MCLGET(m_new, M_DONTWAIT); |
402 | if (!(m_new->m_flags & M_EXT)) { |
403 | printf("%s: no memory for rx list " |
404 | "-- packet dropped!\n" , device_xname(sc->sc_dev)); |
405 | m_freem(m_new); |
406 | return ENOBUFS; |
407 | } |
408 | m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; |
409 | } else { |
410 | m_new = m; |
411 | m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; |
412 | m_new->m_data = m_new->m_ext.ext_buf; |
413 | } |
414 | |
415 | c->upl_mbuf = m_new; |
416 | |
417 | return 0; |
418 | } |
419 | |
420 | Static int |
421 | upl_rx_list_init(struct upl_softc *sc) |
422 | { |
423 | struct upl_cdata *cd; |
424 | struct upl_chain *c; |
425 | int i; |
426 | |
427 | DPRINTFN(5,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
428 | |
429 | cd = &sc->sc_cdata; |
430 | for (i = 0; i < UPL_RX_LIST_CNT; i++) { |
431 | c = &cd->upl_rx_chain[i]; |
432 | c->upl_sc = sc; |
433 | c->upl_idx = i; |
434 | if (upl_newbuf(sc, c, NULL) == ENOBUFS) |
435 | return ENOBUFS; |
436 | if (c->upl_xfer == NULL) { |
437 | int error = usbd_create_xfer(sc->sc_ep[UPL_ENDPT_RX], |
438 | UPL_BUFSZ, USBD_SHORT_XFER_OK, 0, &c->upl_xfer); |
439 | if (error) |
440 | return error; |
441 | c->upl_buf = usbd_get_buffer(c->upl_xfer); |
442 | } |
443 | } |
444 | |
445 | return 0; |
446 | } |
447 | |
448 | Static int |
449 | upl_tx_list_init(struct upl_softc *sc) |
450 | { |
451 | struct upl_cdata *cd; |
452 | struct upl_chain *c; |
453 | int i; |
454 | |
455 | DPRINTFN(5,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
456 | |
457 | cd = &sc->sc_cdata; |
458 | for (i = 0; i < UPL_TX_LIST_CNT; i++) { |
459 | c = &cd->upl_tx_chain[i]; |
460 | c->upl_sc = sc; |
461 | c->upl_idx = i; |
462 | c->upl_mbuf = NULL; |
463 | if (c->upl_xfer == NULL) { |
464 | int error = usbd_create_xfer(sc->sc_ep[UPL_ENDPT_TX], |
465 | UPL_BUFSZ, 0, 0, &c->upl_xfer); |
466 | if (error) |
467 | return error; |
468 | c->upl_buf = usbd_get_buffer(c->upl_xfer); |
469 | } |
470 | } |
471 | |
472 | return 0; |
473 | } |
474 | |
475 | /* |
476 | * A frame has been uploaded: pass the resulting mbuf chain up to |
477 | * the higher level protocols. |
478 | */ |
479 | Static void |
480 | upl_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) |
481 | { |
482 | struct upl_chain *c = priv; |
483 | struct upl_softc *sc = c->upl_sc; |
484 | struct ifnet *ifp = &sc->sc_if; |
485 | struct mbuf *m; |
486 | int total_len = 0; |
487 | int s; |
488 | |
489 | if (sc->sc_dying) |
490 | return; |
491 | |
492 | if (!(ifp->if_flags & IFF_RUNNING)) |
493 | return; |
494 | |
495 | if (status != USBD_NORMAL_COMPLETION) { |
496 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
497 | return; |
498 | sc->sc_rx_errs++; |
499 | if (usbd_ratecheck(&sc->sc_rx_notice)) { |
500 | printf("%s: %u usb errors on rx: %s\n" , |
501 | device_xname(sc->sc_dev), sc->sc_rx_errs, |
502 | usbd_errstr(status)); |
503 | sc->sc_rx_errs = 0; |
504 | } |
505 | if (status == USBD_STALLED) |
506 | usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); |
507 | goto done; |
508 | } |
509 | |
510 | usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); |
511 | |
512 | DPRINTFN(9,("%s: %s: enter status=%d length=%d\n" , |
513 | device_xname(sc->sc_dev), __func__, status, total_len)); |
514 | |
515 | m = c->upl_mbuf; |
516 | memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len); |
517 | |
518 | ifp->if_ipackets++; |
519 | m->m_pkthdr.len = m->m_len = total_len; |
520 | |
521 | m_set_rcvif(m, ifp); |
522 | |
523 | s = splnet(); |
524 | |
525 | /* XXX ugly */ |
526 | if (upl_newbuf(sc, c, NULL) == ENOBUFS) { |
527 | ifp->if_ierrors++; |
528 | goto done1; |
529 | } |
530 | |
531 | /* |
532 | * Handle BPF listeners. Let the BPF user see the packet, but |
533 | * don't pass it up to the ether_input() layer unless it's |
534 | * a broadcast packet, multicast packet, matches our ethernet |
535 | * address or the interface is in promiscuous mode. |
536 | */ |
537 | bpf_mtap(ifp, m); |
538 | |
539 | DPRINTFN(10,("%s: %s: deliver %d\n" , device_xname(sc->sc_dev), |
540 | __func__, m->m_len)); |
541 | |
542 | if_input((ifp), (m)); |
543 | |
544 | done1: |
545 | splx(s); |
546 | |
547 | done: |
548 | #if 1 |
549 | /* Setup new transfer. */ |
550 | usbd_setup_xfer(c->upl_xfer, c, c->upl_buf, UPL_BUFSZ, |
551 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upl_rxeof); |
552 | usbd_transfer(c->upl_xfer); |
553 | |
554 | DPRINTFN(10,("%s: %s: start rx\n" , device_xname(sc->sc_dev), |
555 | __func__)); |
556 | #endif |
557 | } |
558 | |
559 | /* |
560 | * A frame was downloaded to the chip. It's safe for us to clean up |
561 | * the list buffers. |
562 | */ |
563 | Static void |
564 | upl_txeof(struct usbd_xfer *xfer, void *priv, |
565 | usbd_status status) |
566 | { |
567 | struct upl_chain *c = priv; |
568 | struct upl_softc *sc = c->upl_sc; |
569 | struct ifnet *ifp = &sc->sc_if; |
570 | int s; |
571 | |
572 | if (sc->sc_dying) |
573 | return; |
574 | |
575 | s = splnet(); |
576 | |
577 | DPRINTFN(10,("%s: %s: enter status=%d\n" , device_xname(sc->sc_dev), |
578 | __func__, status)); |
579 | |
580 | ifp->if_timer = 0; |
581 | ifp->if_flags &= ~IFF_OACTIVE; |
582 | |
583 | if (status != USBD_NORMAL_COMPLETION) { |
584 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { |
585 | splx(s); |
586 | return; |
587 | } |
588 | ifp->if_oerrors++; |
589 | printf("%s: usb error on tx: %s\n" , device_xname(sc->sc_dev), |
590 | usbd_errstr(status)); |
591 | if (status == USBD_STALLED) |
592 | usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_TX]); |
593 | splx(s); |
594 | return; |
595 | } |
596 | |
597 | ifp->if_opackets++; |
598 | |
599 | m_freem(c->upl_mbuf); |
600 | c->upl_mbuf = NULL; |
601 | |
602 | if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) |
603 | upl_start(ifp); |
604 | |
605 | splx(s); |
606 | } |
607 | |
608 | Static int |
609 | upl_send(struct upl_softc *sc, struct mbuf *m, int idx) |
610 | { |
611 | int total_len; |
612 | struct upl_chain *c; |
613 | usbd_status err; |
614 | |
615 | c = &sc->sc_cdata.upl_tx_chain[idx]; |
616 | |
617 | /* |
618 | * Copy the mbuf data into a contiguous buffer, leaving two |
619 | * bytes at the beginning to hold the frame length. |
620 | */ |
621 | m_copydata(m, 0, m->m_pkthdr.len, c->upl_buf); |
622 | c->upl_mbuf = m; |
623 | |
624 | total_len = m->m_pkthdr.len; |
625 | |
626 | DPRINTFN(10,("%s: %s: total_len=%d\n" , |
627 | device_xname(sc->sc_dev), __func__, total_len)); |
628 | |
629 | usbd_setup_xfer(c->upl_xfer, c, c->upl_buf, total_len, 0, |
630 | USBD_DEFAULT_TIMEOUT, upl_txeof); |
631 | |
632 | /* Transmit */ |
633 | err = usbd_transfer(c->upl_xfer); |
634 | if (err != USBD_IN_PROGRESS) { |
635 | printf("%s: upl_send error=%s\n" , device_xname(sc->sc_dev), |
636 | usbd_errstr(err)); |
637 | upl_stop(sc); |
638 | return EIO; |
639 | } |
640 | |
641 | sc->sc_cdata.upl_tx_cnt++; |
642 | |
643 | return 0; |
644 | } |
645 | |
646 | Static void |
647 | upl_start(struct ifnet *ifp) |
648 | { |
649 | struct upl_softc *sc = ifp->if_softc; |
650 | struct mbuf *m_head = NULL; |
651 | |
652 | if (sc->sc_dying) |
653 | return; |
654 | |
655 | DPRINTFN(10,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
656 | |
657 | if (ifp->if_flags & IFF_OACTIVE) |
658 | return; |
659 | |
660 | IFQ_POLL(&ifp->if_snd, m_head); |
661 | if (m_head == NULL) |
662 | return; |
663 | |
664 | if (upl_send(sc, m_head, 0)) { |
665 | ifp->if_flags |= IFF_OACTIVE; |
666 | return; |
667 | } |
668 | |
669 | IFQ_DEQUEUE(&ifp->if_snd, m_head); |
670 | |
671 | /* |
672 | * If there's a BPF listener, bounce a copy of this frame |
673 | * to him. |
674 | */ |
675 | bpf_mtap(ifp, m_head); |
676 | |
677 | ifp->if_flags |= IFF_OACTIVE; |
678 | |
679 | /* |
680 | * Set a timeout in case the chip goes out to lunch. |
681 | */ |
682 | ifp->if_timer = 5; |
683 | } |
684 | |
685 | Static void |
686 | upl_init(void *xsc) |
687 | { |
688 | struct upl_softc *sc = xsc; |
689 | struct ifnet *ifp = &sc->sc_if; |
690 | int s; |
691 | |
692 | if (sc->sc_dying) |
693 | return; |
694 | |
695 | DPRINTFN(10,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
696 | |
697 | if (ifp->if_flags & IFF_RUNNING) |
698 | return; |
699 | |
700 | s = splnet(); |
701 | |
702 | if (sc->sc_ep[UPL_ENDPT_RX] == NULL) { |
703 | if (upl_openpipes(sc)) { |
704 | splx(s); |
705 | return; |
706 | } |
707 | } |
708 | /* Init TX ring. */ |
709 | if (upl_tx_list_init(sc)) { |
710 | printf("%s: tx list init failed\n" , device_xname(sc->sc_dev)); |
711 | splx(s); |
712 | return; |
713 | } |
714 | |
715 | /* Init RX ring. */ |
716 | if (upl_rx_list_init(sc)) { |
717 | printf("%s: rx list init failed\n" , device_xname(sc->sc_dev)); |
718 | splx(s); |
719 | return; |
720 | } |
721 | |
722 | /* Start up the receive pipe. */ |
723 | for (int i = 0; i < UPL_RX_LIST_CNT; i++) { |
724 | struct upl_chain *c = &sc->sc_cdata.upl_rx_chain[i]; |
725 | usbd_setup_xfer(c->upl_xfer, c, c->upl_buf, UPL_BUFSZ, |
726 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, |
727 | upl_rxeof); |
728 | usbd_transfer(c->upl_xfer); |
729 | } |
730 | |
731 | ifp->if_flags |= IFF_RUNNING; |
732 | ifp->if_flags &= ~IFF_OACTIVE; |
733 | |
734 | splx(s); |
735 | } |
736 | |
737 | Static int |
738 | upl_openpipes(struct upl_softc *sc) |
739 | { |
740 | usbd_status err; |
741 | |
742 | /* Open RX and TX pipes. */ |
743 | err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX], |
744 | USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]); |
745 | if (err) { |
746 | printf("%s: open rx pipe failed: %s\n" , |
747 | device_xname(sc->sc_dev), usbd_errstr(err)); |
748 | return EIO; |
749 | } |
750 | err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX], |
751 | USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]); |
752 | if (err) { |
753 | printf("%s: open tx pipe failed: %s\n" , |
754 | device_xname(sc->sc_dev), usbd_errstr(err)); |
755 | return EIO; |
756 | } |
757 | err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR], |
758 | USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_INTR], sc, |
759 | &sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr, |
760 | UPL_INTR_INTERVAL); |
761 | if (err) { |
762 | printf("%s: open intr pipe failed: %s\n" , |
763 | device_xname(sc->sc_dev), usbd_errstr(err)); |
764 | return EIO; |
765 | } |
766 | |
767 | return 0; |
768 | } |
769 | |
770 | Static void |
771 | upl_intr(struct usbd_xfer *xfer, void *priv, |
772 | usbd_status status) |
773 | { |
774 | struct upl_softc *sc = priv; |
775 | struct ifnet *ifp = &sc->sc_if; |
776 | uByte stat; |
777 | |
778 | DPRINTFN(15,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
779 | |
780 | if (sc->sc_dying) |
781 | return; |
782 | |
783 | if (!(ifp->if_flags & IFF_RUNNING)) |
784 | return; |
785 | |
786 | if (status != USBD_NORMAL_COMPLETION) { |
787 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { |
788 | return; |
789 | } |
790 | sc->sc_intr_errs++; |
791 | if (usbd_ratecheck(&sc->sc_rx_notice)) { |
792 | printf("%s: %u usb errors on intr: %s\n" , |
793 | device_xname(sc->sc_dev), sc->sc_rx_errs, |
794 | usbd_errstr(status)); |
795 | sc->sc_intr_errs = 0; |
796 | } |
797 | if (status == USBD_STALLED) |
798 | usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); |
799 | return; |
800 | } |
801 | |
802 | stat = sc->sc_ibuf; |
803 | |
804 | if (stat == 0) |
805 | return; |
806 | |
807 | DPRINTFN(10,("%s: %s: stat=0x%02x\n" , device_xname(sc->sc_dev), |
808 | __func__, stat)); |
809 | |
810 | } |
811 | |
812 | Static int |
813 | upl_ioctl(struct ifnet *ifp, u_long command, void *data) |
814 | { |
815 | struct upl_softc *sc = ifp->if_softc; |
816 | struct ifaddr *ifa = (struct ifaddr *)data; |
817 | struct ifreq *ifr = (struct ifreq *)data; |
818 | int s, error = 0; |
819 | |
820 | if (sc->sc_dying) |
821 | return EIO; |
822 | |
823 | DPRINTFN(5,("%s: %s: cmd=0x%08lx\n" , |
824 | device_xname(sc->sc_dev), __func__, command)); |
825 | |
826 | s = splnet(); |
827 | |
828 | switch(command) { |
829 | case SIOCINITIFADDR: |
830 | ifp->if_flags |= IFF_UP; |
831 | upl_init(sc); |
832 | |
833 | switch (ifa->ifa_addr->sa_family) { |
834 | #ifdef INET |
835 | case AF_INET: |
836 | break; |
837 | #endif /* INET */ |
838 | } |
839 | break; |
840 | |
841 | case SIOCSIFMTU: |
842 | if (ifr->ifr_mtu > UPL_BUFSZ) |
843 | error = EINVAL; |
844 | else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) |
845 | error = 0; |
846 | break; |
847 | |
848 | case SIOCSIFFLAGS: |
849 | if ((error = ifioctl_common(ifp, command, data)) != 0) |
850 | break; |
851 | /* XXX re-use ether_ioctl() */ |
852 | switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { |
853 | case IFF_UP: |
854 | upl_init(sc); |
855 | break; |
856 | case IFF_RUNNING: |
857 | upl_stop(sc); |
858 | break; |
859 | default: |
860 | break; |
861 | } |
862 | break; |
863 | default: |
864 | error = ifioctl_common(ifp, command, data); |
865 | break; |
866 | } |
867 | |
868 | splx(s); |
869 | |
870 | return error; |
871 | } |
872 | |
873 | Static void |
874 | upl_watchdog(struct ifnet *ifp) |
875 | { |
876 | struct upl_softc *sc = ifp->if_softc; |
877 | |
878 | DPRINTFN(5,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
879 | |
880 | if (sc->sc_dying) |
881 | return; |
882 | |
883 | ifp->if_oerrors++; |
884 | printf("%s: watchdog timeout\n" , device_xname(sc->sc_dev)); |
885 | |
886 | upl_stop(sc); |
887 | upl_init(sc); |
888 | |
889 | if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) |
890 | upl_start(ifp); |
891 | } |
892 | |
893 | /* |
894 | * Stop the adapter and free any mbufs allocated to the |
895 | * RX and TX lists. |
896 | */ |
897 | Static void |
898 | upl_stop(struct upl_softc *sc) |
899 | { |
900 | usbd_status err; |
901 | struct ifnet *ifp; |
902 | int i; |
903 | |
904 | DPRINTFN(10,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
905 | |
906 | ifp = &sc->sc_if; |
907 | ifp->if_timer = 0; |
908 | |
909 | /* Stop transfers. */ |
910 | if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { |
911 | err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_RX]); |
912 | if (err) { |
913 | printf("%s: abort rx pipe failed: %s\n" , |
914 | device_xname(sc->sc_dev), usbd_errstr(err)); |
915 | } |
916 | } |
917 | |
918 | if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { |
919 | err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_TX]); |
920 | if (err) { |
921 | printf("%s: abort tx pipe failed: %s\n" , |
922 | device_xname(sc->sc_dev), usbd_errstr(err)); |
923 | } |
924 | } |
925 | |
926 | if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { |
927 | err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_INTR]); |
928 | if (err) { |
929 | printf("%s: abort intr pipe failed: %s\n" , |
930 | device_xname(sc->sc_dev), usbd_errstr(err)); |
931 | } |
932 | } |
933 | |
934 | /* Free RX resources. */ |
935 | for (i = 0; i < UPL_RX_LIST_CNT; i++) { |
936 | if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) { |
937 | m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf); |
938 | sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL; |
939 | } |
940 | } |
941 | |
942 | /* Free TX resources. */ |
943 | for (i = 0; i < UPL_TX_LIST_CNT; i++) { |
944 | if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) { |
945 | m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf); |
946 | sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL; |
947 | } |
948 | if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) { |
949 | usbd_destroy_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer); |
950 | sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL; |
951 | } |
952 | } |
953 | |
954 | /* Close pipes */ |
955 | if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { |
956 | err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]); |
957 | if (err) { |
958 | printf("%s: close rx pipe failed: %s\n" , |
959 | device_xname(sc->sc_dev), usbd_errstr(err)); |
960 | } |
961 | sc->sc_ep[UPL_ENDPT_RX] = NULL; |
962 | } |
963 | |
964 | if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { |
965 | err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]); |
966 | if (err) { |
967 | printf("%s: close tx pipe failed: %s\n" , |
968 | device_xname(sc->sc_dev), usbd_errstr(err)); |
969 | } |
970 | sc->sc_ep[UPL_ENDPT_TX] = NULL; |
971 | } |
972 | |
973 | if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { |
974 | err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]); |
975 | if (err) { |
976 | printf("%s: close intr pipe failed: %s\n" , |
977 | device_xname(sc->sc_dev), usbd_errstr(err)); |
978 | } |
979 | sc->sc_ep[UPL_ENDPT_INTR] = NULL; |
980 | } |
981 | |
982 | ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); |
983 | } |
984 | |
985 | Static int |
986 | upl_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, |
987 | const struct rtentry *rt0) |
988 | { |
989 | int error; |
990 | |
991 | DPRINTFN(10,("%s: %s: enter\n" , |
992 | device_xname(((struct upl_softc *)ifp->if_softc)->sc_dev), |
993 | __func__)); |
994 | |
995 | /* |
996 | * if the queueing discipline needs packet classification, |
997 | * do it now. |
998 | */ |
999 | IFQ_CLASSIFY(&ifp->if_snd, m, dst->sa_family); |
1000 | |
1001 | /* |
1002 | * Queue message on interface, and start output if interface |
1003 | * not yet active. |
1004 | */ |
1005 | error = if_transmit_lock(ifp, m); |
1006 | |
1007 | return error; |
1008 | } |
1009 | |
1010 | Static void |
1011 | upl_input(struct ifnet *ifp, struct mbuf *m) |
1012 | { |
1013 | #ifdef INET |
1014 | size_t pktlen = m->m_len; |
1015 | int s; |
1016 | |
1017 | s = splnet(); |
1018 | if (__predict_false(!pktq_enqueue(ip_pktq, m, 0))) { |
1019 | ifp->if_iqdrops++; |
1020 | m_freem(m); |
1021 | } else { |
1022 | ifp->if_ipackets++; |
1023 | ifp->if_ibytes += pktlen; |
1024 | } |
1025 | splx(s); |
1026 | #endif |
1027 | } |
1028 | |