1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 Anybots Inc
5 * written by Akinori Furukoshi <moonlightakkiy@yahoo.ca>
6 * - ucom part is based on u3g.c
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/param.h>
31 #include <sys/eventhandler.h>
32 #include <sys/systm.h>
33 #include <sys/queue.h>
34 #include <sys/systm.h>
35 #include <sys/socket.h>
36 #include <sys/kernel.h>
37 #include <sys/bus.h>
38 #include <sys/module.h>
39 #include <sys/sockio.h>
40 #include <sys/socket.h>
41 #include <sys/lock.h>
42 #include <sys/mutex.h>
43 #include <sys/condvar.h>
44 #include <sys/sysctl.h>
45 #include <sys/malloc.h>
46 #include <sys/taskqueue.h>
47
48 #include <net/if.h>
49 #include <net/if_var.h>
50
51 #include <machine/bus.h>
52
53 #include <net/if.h>
54 #include <net/if_types.h>
55 #include <net/netisr.h>
56 #include <net/bpf.h>
57 #include <net/ethernet.h>
58
59 #include <netinet/in.h>
60 #include <netinet/ip.h>
61 #include <netinet/ip6.h>
62 #include <netinet/udp.h>
63
64 #include <net80211/ieee80211_ioctl.h>
65
66 #include <dev/usb/usb.h>
67 #include <dev/usb/usbdi.h>
68 #include <dev/usb/usbdi_util.h>
69 #include <dev/usb/usb_cdc.h>
70 #include "usbdevs.h"
71
72 #define USB_DEBUG_VAR usie_debug
73 #include <dev/usb/usb_debug.h>
74 #include <dev/usb/usb_process.h>
75 #include <dev/usb/usb_msctest.h>
76
77 #include <dev/usb/serial/usb_serial.h>
78
79 #include <dev/usb/net/if_usievar.h>
80
81 #ifdef USB_DEBUG
82 static int usie_debug = 0;
83
84 static SYSCTL_NODE(_hw_usb, OID_AUTO, usie, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
85 "sierra USB modem");
86 SYSCTL_INT(_hw_usb_usie, OID_AUTO, debug, CTLFLAG_RWTUN, &usie_debug, 0,
87 "usie debug level");
88 #endif
89
90 /* Sierra Wireless Direct IP modems */
91 static const STRUCT_USB_HOST_ID usie_devs[] = {
92 #define USIE_DEV(v, d) { \
93 USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##d) }
94 USIE_DEV(SIERRA, MC8700),
95 USIE_DEV(SIERRA, TRUINSTALL),
96 USIE_DEV(AIRPRIME, USB308),
97 #undef USIE_DEV
98 };
99
100 static device_probe_t usie_probe;
101 static device_attach_t usie_attach;
102 static device_detach_t usie_detach;
103 static void usie_free_softc(struct usie_softc *);
104
105 static void usie_free(struct ucom_softc *);
106 static void usie_uc_update_line_state(struct ucom_softc *, uint8_t);
107 static void usie_uc_cfg_get_status(struct ucom_softc *, uint8_t *, uint8_t *);
108 static void usie_uc_cfg_set_dtr(struct ucom_softc *, uint8_t);
109 static void usie_uc_cfg_set_rts(struct ucom_softc *, uint8_t);
110 static void usie_uc_cfg_open(struct ucom_softc *);
111 static void usie_uc_cfg_close(struct ucom_softc *);
112 static void usie_uc_start_read(struct ucom_softc *);
113 static void usie_uc_stop_read(struct ucom_softc *);
114 static void usie_uc_start_write(struct ucom_softc *);
115 static void usie_uc_stop_write(struct ucom_softc *);
116
117 static usb_callback_t usie_uc_tx_callback;
118 static usb_callback_t usie_uc_rx_callback;
119 static usb_callback_t usie_uc_status_callback;
120 static usb_callback_t usie_if_tx_callback;
121 static usb_callback_t usie_if_rx_callback;
122 static usb_callback_t usie_if_status_callback;
123
124 static void usie_if_sync_to(void *);
125 static void usie_if_sync_cb(void *, int);
126 static void usie_if_status_cb(void *, int);
127
128 static void usie_if_start(if_t);
129 static int usie_if_output(if_t, struct mbuf *,
130 const struct sockaddr *, struct route *);
131 static void usie_if_init(void *);
132 static void usie_if_stop(struct usie_softc *);
133 static int usie_if_ioctl(if_t, u_long, caddr_t);
134
135 static int usie_do_request(struct usie_softc *, struct usb_device_request *, void *);
136 static int usie_if_cmd(struct usie_softc *, uint8_t);
137 static void usie_cns_req(struct usie_softc *, uint32_t, uint16_t);
138 static void usie_cns_rsp(struct usie_softc *, struct usie_cns *);
139 static void usie_hip_rsp(struct usie_softc *, uint8_t *, uint32_t);
140 static int usie_driver_loaded(struct module *, int, void *);
141
142 static const struct usb_config usie_uc_config[USIE_UC_N_XFER] = {
143 [USIE_UC_STATUS] = {
144 .type = UE_INTERRUPT,
145 .endpoint = UE_ADDR_ANY,
146 .direction = UE_DIR_IN,
147 .bufsize = 0, /* use wMaxPacketSize */
148 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
149 .callback = &usie_uc_status_callback,
150 },
151 [USIE_UC_RX] = {
152 .type = UE_BULK,
153 .endpoint = UE_ADDR_ANY,
154 .direction = UE_DIR_IN,
155 .bufsize = USIE_BUFSIZE,
156 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.proxy_buffer = 1,},
157 .callback = &usie_uc_rx_callback,
158 },
159 [USIE_UC_TX] = {
160 .type = UE_BULK,
161 .endpoint = UE_ADDR_ANY,
162 .direction = UE_DIR_OUT,
163 .bufsize = USIE_BUFSIZE,
164 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
165 .callback = &usie_uc_tx_callback,
166 }
167 };
168
169 static const struct usb_config usie_if_config[USIE_IF_N_XFER] = {
170 [USIE_IF_STATUS] = {
171 .type = UE_INTERRUPT,
172 .endpoint = UE_ADDR_ANY,
173 .direction = UE_DIR_IN,
174 .bufsize = 0, /* use wMaxPacketSize */
175 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
176 .callback = &usie_if_status_callback,
177 },
178 [USIE_IF_RX] = {
179 .type = UE_BULK,
180 .endpoint = UE_ADDR_ANY,
181 .direction = UE_DIR_IN,
182 .bufsize = USIE_BUFSIZE,
183 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
184 .callback = &usie_if_rx_callback,
185 },
186 [USIE_IF_TX] = {
187 .type = UE_BULK,
188 .endpoint = UE_ADDR_ANY,
189 .direction = UE_DIR_OUT,
190 .bufsize = MAX(USIE_BUFSIZE, MCLBYTES),
191 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
192 .callback = &usie_if_tx_callback,
193 }
194 };
195
196 static device_method_t usie_methods[] = {
197 DEVMETHOD(device_probe, usie_probe),
198 DEVMETHOD(device_attach, usie_attach),
199 DEVMETHOD(device_detach, usie_detach),
200 DEVMETHOD_END
201 };
202
203 static driver_t usie_driver = {
204 .name = "usie",
205 .methods = usie_methods,
206 .size = sizeof(struct usie_softc),
207 };
208
209 static eventhandler_tag usie_etag;
210
211 DRIVER_MODULE(usie, uhub, usie_driver, usie_driver_loaded, NULL);
212 MODULE_DEPEND(usie, ucom, 1, 1, 1);
213 MODULE_DEPEND(usie, usb, 1, 1, 1);
214 MODULE_VERSION(usie, 1);
215 USB_PNP_HOST_INFO(usie_devs);
216
217 static const struct ucom_callback usie_uc_callback = {
218 .ucom_cfg_get_status = &usie_uc_cfg_get_status,
219 .ucom_cfg_set_dtr = &usie_uc_cfg_set_dtr,
220 .ucom_cfg_set_rts = &usie_uc_cfg_set_rts,
221 .ucom_cfg_open = &usie_uc_cfg_open,
222 .ucom_cfg_close = &usie_uc_cfg_close,
223 .ucom_start_read = &usie_uc_start_read,
224 .ucom_stop_read = &usie_uc_stop_read,
225 .ucom_start_write = &usie_uc_start_write,
226 .ucom_stop_write = &usie_uc_stop_write,
227 .ucom_free = &usie_free,
228 };
229
230 static void
usie_autoinst(void * arg,struct usb_device * udev,struct usb_attach_arg * uaa)231 usie_autoinst(void *arg, struct usb_device *udev,
232 struct usb_attach_arg *uaa)
233 {
234 struct usb_interface *iface;
235 struct usb_interface_descriptor *id;
236 struct usb_device_request req;
237 int err;
238
239 if (uaa->dev_state != UAA_DEV_READY)
240 return;
241
242 iface = usbd_get_iface(udev, 0);
243 if (iface == NULL)
244 return;
245
246 id = iface->idesc;
247 if (id == NULL || id->bInterfaceClass != UICLASS_MASS)
248 return;
249
250 if (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa) != 0)
251 return; /* no device match */
252
253 if (bootverbose) {
254 DPRINTF("Ejecting %s %s\n",
255 usb_get_manufacturer(udev),
256 usb_get_product(udev));
257 }
258 req.bmRequestType = UT_VENDOR;
259 req.bRequest = UR_SET_INTERFACE;
260 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
261 USETW(req.wIndex, UHF_PORT_CONNECTION);
262 USETW(req.wLength, 0);
263
264 /* at this moment there is no mutex */
265 err = usbd_do_request_flags(udev, NULL, &req,
266 NULL, 0, NULL, 250 /* ms */ );
267
268 /* success, mark the udev as disappearing */
269 if (err == 0)
270 uaa->dev_state = UAA_DEV_EJECTING;
271 }
272
273 static int
usie_probe(device_t self)274 usie_probe(device_t self)
275 {
276 struct usb_attach_arg *uaa = device_get_ivars(self);
277
278 if (uaa->usb_mode != USB_MODE_HOST)
279 return (ENXIO);
280 if (uaa->info.bConfigIndex != USIE_CNFG_INDEX)
281 return (ENXIO);
282 if (uaa->info.bIfaceIndex != USIE_IFACE_INDEX)
283 return (ENXIO);
284 if (uaa->info.bInterfaceClass != UICLASS_VENDOR)
285 return (ENXIO);
286
287 return (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa));
288 }
289
290 static int
usie_attach(device_t self)291 usie_attach(device_t self)
292 {
293 struct usie_softc *sc = device_get_softc(self);
294 struct usb_attach_arg *uaa = device_get_ivars(self);
295 if_t ifp;
296 struct usb_interface *iface;
297 struct usb_interface_descriptor *id;
298 struct usb_device_request req;
299 int err;
300 uint16_t fwattr;
301 uint8_t iface_index;
302 uint8_t ifidx;
303 uint8_t start;
304
305 device_set_usb_desc(self);
306 sc->sc_udev = uaa->device;
307 sc->sc_dev = self;
308
309 mtx_init(&sc->sc_mtx, "usie", MTX_NETWORK_LOCK, MTX_DEF);
310 ucom_ref(&sc->sc_super_ucom);
311
312 TASK_INIT(&sc->sc_if_status_task, 0, usie_if_status_cb, sc);
313 TASK_INIT(&sc->sc_if_sync_task, 0, usie_if_sync_cb, sc);
314
315 usb_callout_init_mtx(&sc->sc_if_sync_ch, &sc->sc_mtx, 0);
316
317 mtx_lock(&sc->sc_mtx);
318
319 /* set power mode to D0 */
320 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
321 req.bRequest = USIE_POWER;
322 USETW(req.wValue, 0);
323 USETW(req.wIndex, 0);
324 USETW(req.wLength, 0);
325 if (usie_do_request(sc, &req, NULL)) {
326 mtx_unlock(&sc->sc_mtx);
327 goto detach;
328 }
329 /* read fw attr */
330 fwattr = 0;
331 req.bmRequestType = UT_READ_VENDOR_DEVICE;
332 req.bRequest = USIE_FW_ATTR;
333 USETW(req.wValue, 0);
334 USETW(req.wIndex, 0);
335 USETW(req.wLength, sizeof(fwattr));
336 if (usie_do_request(sc, &req, &fwattr)) {
337 mtx_unlock(&sc->sc_mtx);
338 goto detach;
339 }
340 mtx_unlock(&sc->sc_mtx);
341
342 /* check DHCP supports */
343 DPRINTF("fwattr=%x\n", fwattr);
344 if (!(fwattr & USIE_FW_DHCP)) {
345 device_printf(self, "DHCP is not supported. A firmware upgrade might be needed.\n");
346 }
347
348 /* find available interfaces */
349 sc->sc_nucom = 0;
350 for (ifidx = 0; ifidx < USIE_IFACE_MAX; ifidx++) {
351 iface = usbd_get_iface(uaa->device, ifidx);
352 if (iface == NULL)
353 break;
354
355 id = usbd_get_interface_descriptor(iface);
356 if ((id == NULL) || (id->bInterfaceClass != UICLASS_VENDOR))
357 continue;
358
359 /* setup Direct IP transfer */
360 if (id->bInterfaceNumber >= 7 && id->bNumEndpoints == 3) {
361 sc->sc_if_ifnum = id->bInterfaceNumber;
362 iface_index = ifidx;
363
364 DPRINTF("ifnum=%d, ifidx=%d\n",
365 sc->sc_if_ifnum, ifidx);
366
367 err = usbd_transfer_setup(uaa->device,
368 &iface_index, sc->sc_if_xfer, usie_if_config,
369 USIE_IF_N_XFER, sc, &sc->sc_mtx);
370
371 if (err == 0)
372 continue;
373
374 device_printf(self,
375 "could not allocate USB transfers on "
376 "iface_index=%d, err=%s\n",
377 iface_index, usbd_errstr(err));
378 goto detach;
379 }
380
381 /* setup ucom */
382 if (sc->sc_nucom >= USIE_UCOM_MAX)
383 continue;
384
385 usbd_set_parent_iface(uaa->device, ifidx,
386 uaa->info.bIfaceIndex);
387
388 DPRINTF("NumEndpoints=%d bInterfaceNumber=%d\n",
389 id->bNumEndpoints, id->bInterfaceNumber);
390
391 if (id->bNumEndpoints == 2) {
392 sc->sc_uc_xfer[sc->sc_nucom][0] = NULL;
393 start = 1;
394 } else
395 start = 0;
396
397 err = usbd_transfer_setup(uaa->device, &ifidx,
398 sc->sc_uc_xfer[sc->sc_nucom] + start,
399 usie_uc_config + start, USIE_UC_N_XFER - start,
400 &sc->sc_ucom[sc->sc_nucom], &sc->sc_mtx);
401
402 if (err != 0) {
403 DPRINTF("usbd_transfer_setup error=%s\n", usbd_errstr(err));
404 continue;
405 }
406
407 mtx_lock(&sc->sc_mtx);
408 for (; start < USIE_UC_N_XFER; start++)
409 usbd_xfer_set_stall(sc->sc_uc_xfer[sc->sc_nucom][start]);
410 mtx_unlock(&sc->sc_mtx);
411
412 sc->sc_uc_ifnum[sc->sc_nucom] = id->bInterfaceNumber;
413
414 sc->sc_nucom++; /* found a port */
415 }
416
417 if (sc->sc_nucom == 0) {
418 device_printf(self, "no comports found\n");
419 goto detach;
420 }
421
422 err = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
423 sc->sc_nucom, sc, &usie_uc_callback, &sc->sc_mtx);
424
425 if (err != 0) {
426 DPRINTF("ucom_attach failed\n");
427 goto detach;
428 }
429 DPRINTF("Found %d interfaces.\n", sc->sc_nucom);
430
431 /* setup ifnet (Direct IP) */
432 sc->sc_ifp = ifp = if_alloc(IFT_OTHER);
433
434 if (ifp == NULL) {
435 device_printf(self, "Could not allocate a network interface\n");
436 goto detach;
437 }
438 if_initname(ifp, "usie", device_get_unit(self));
439
440 if_setsoftc(ifp, sc);
441 if_setmtu(ifp, USIE_MTU_MAX);
442 if_setflagbits(ifp, IFF_NOARP, 0);
443 if_setinitfn(ifp, usie_if_init);
444 if_setioctlfn(ifp, usie_if_ioctl);
445 if_setstartfn(ifp, usie_if_start);
446 if_setoutputfn(ifp, usie_if_output);
447 if_setsendqlen(ifp, ifqmaxlen);
448 if_setsendqready(ifp);
449
450 if_attach(ifp);
451 bpfattach(ifp, DLT_RAW, 0);
452
453 if (fwattr & USIE_PM_AUTO) {
454 usbd_set_power_mode(uaa->device, USB_POWER_MODE_SAVE);
455 DPRINTF("enabling automatic suspend and resume\n");
456 } else {
457 usbd_set_power_mode(uaa->device, USB_POWER_MODE_ON);
458 DPRINTF("USB power is always ON\n");
459 }
460
461 DPRINTF("device attached\n");
462 return (0);
463
464 detach:
465 usie_detach(self);
466 return (ENOMEM);
467 }
468
469 static int
usie_detach(device_t self)470 usie_detach(device_t self)
471 {
472 struct usie_softc *sc = device_get_softc(self);
473 uint8_t x;
474
475 /* detach ifnet */
476 if (sc->sc_ifp != NULL) {
477 usie_if_stop(sc);
478 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER);
479 bpfdetach(sc->sc_ifp);
480 if_detach(sc->sc_ifp);
481 if_free(sc->sc_ifp);
482 sc->sc_ifp = NULL;
483 }
484 /* detach ucom */
485 if (sc->sc_nucom > 0)
486 ucom_detach(&sc->sc_super_ucom, sc->sc_ucom);
487
488 /* stop all USB transfers */
489 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER);
490
491 for (x = 0; x != USIE_UCOM_MAX; x++)
492 usbd_transfer_unsetup(sc->sc_uc_xfer[x], USIE_UC_N_XFER);
493
494 device_claim_softc(self);
495
496 usie_free_softc(sc);
497
498 return (0);
499 }
500
501 UCOM_UNLOAD_DRAIN(usie);
502
503 static void
usie_free_softc(struct usie_softc * sc)504 usie_free_softc(struct usie_softc *sc)
505 {
506 if (ucom_unref(&sc->sc_super_ucom)) {
507 mtx_destroy(&sc->sc_mtx);
508 device_free_softc(sc);
509 }
510 }
511
512 static void
usie_free(struct ucom_softc * ucom)513 usie_free(struct ucom_softc *ucom)
514 {
515 usie_free_softc(ucom->sc_parent);
516 }
517
518 static void
usie_uc_update_line_state(struct ucom_softc * ucom,uint8_t ls)519 usie_uc_update_line_state(struct ucom_softc *ucom, uint8_t ls)
520 {
521 struct usie_softc *sc = ucom->sc_parent;
522 struct usb_device_request req;
523
524 if (sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS] == NULL)
525 return;
526
527 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
528 req.bRequest = USIE_LINK_STATE;
529 USETW(req.wValue, ls);
530 USETW(req.wIndex, sc->sc_uc_ifnum[ucom->sc_subunit]);
531 USETW(req.wLength, 0);
532
533 DPRINTF("sc_uc_ifnum=%d\n", sc->sc_uc_ifnum[ucom->sc_subunit]);
534
535 usie_do_request(sc, &req, NULL);
536 }
537
538 static void
usie_uc_cfg_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)539 usie_uc_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
540 {
541 struct usie_softc *sc = ucom->sc_parent;
542
543 *msr = sc->sc_msr;
544 *lsr = sc->sc_lsr;
545 }
546
547 static void
usie_uc_cfg_set_dtr(struct ucom_softc * ucom,uint8_t flag)548 usie_uc_cfg_set_dtr(struct ucom_softc *ucom, uint8_t flag)
549 {
550 uint8_t dtr;
551
552 dtr = flag ? USIE_LS_DTR : 0;
553 usie_uc_update_line_state(ucom, dtr);
554 }
555
556 static void
usie_uc_cfg_set_rts(struct ucom_softc * ucom,uint8_t flag)557 usie_uc_cfg_set_rts(struct ucom_softc *ucom, uint8_t flag)
558 {
559 uint8_t rts;
560
561 rts = flag ? USIE_LS_RTS : 0;
562 usie_uc_update_line_state(ucom, rts);
563 }
564
565 static void
usie_uc_cfg_open(struct ucom_softc * ucom)566 usie_uc_cfg_open(struct ucom_softc *ucom)
567 {
568 struct usie_softc *sc = ucom->sc_parent;
569
570 /* usbd_transfer_start() is NULL safe */
571
572 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]);
573 }
574
575 static void
usie_uc_cfg_close(struct ucom_softc * ucom)576 usie_uc_cfg_close(struct ucom_softc *ucom)
577 {
578 struct usie_softc *sc = ucom->sc_parent;
579
580 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]);
581 }
582
583 static void
usie_uc_start_read(struct ucom_softc * ucom)584 usie_uc_start_read(struct ucom_softc *ucom)
585 {
586 struct usie_softc *sc = ucom->sc_parent;
587
588 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]);
589 }
590
591 static void
usie_uc_stop_read(struct ucom_softc * ucom)592 usie_uc_stop_read(struct ucom_softc *ucom)
593 {
594 struct usie_softc *sc = ucom->sc_parent;
595
596 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]);
597 }
598
599 static void
usie_uc_start_write(struct ucom_softc * ucom)600 usie_uc_start_write(struct ucom_softc *ucom)
601 {
602 struct usie_softc *sc = ucom->sc_parent;
603
604 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]);
605 }
606
607 static void
usie_uc_stop_write(struct ucom_softc * ucom)608 usie_uc_stop_write(struct ucom_softc *ucom)
609 {
610 struct usie_softc *sc = ucom->sc_parent;
611
612 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]);
613 }
614
615 static void
usie_uc_rx_callback(struct usb_xfer * xfer,usb_error_t error)616 usie_uc_rx_callback(struct usb_xfer *xfer, usb_error_t error)
617 {
618 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
619 struct usie_softc *sc = ucom->sc_parent;
620 struct usb_page_cache *pc;
621 uint32_t actlen;
622
623 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
624
625 switch (USB_GET_STATE(xfer)) {
626 case USB_ST_TRANSFERRED:
627 pc = usbd_xfer_get_frame(xfer, 0);
628
629 /* handle CnS response */
630 if (ucom == sc->sc_ucom && actlen >= USIE_HIPCNS_MIN) {
631 DPRINTF("transferred=%u\n", actlen);
632
633 /* check if it is really CnS reply */
634 usbd_copy_out(pc, 0, sc->sc_resp_temp, 1);
635
636 if (sc->sc_resp_temp[0] == USIE_HIP_FRM_CHR) {
637 /* verify actlen */
638 if (actlen > USIE_BUFSIZE)
639 actlen = USIE_BUFSIZE;
640
641 /* get complete message */
642 usbd_copy_out(pc, 0, sc->sc_resp_temp, actlen);
643 usie_hip_rsp(sc, sc->sc_resp_temp, actlen);
644
645 /* need to fall though */
646 goto tr_setup;
647 }
648 /* else call ucom_put_data() */
649 }
650 /* standard ucom transfer */
651 ucom_put_data(ucom, pc, 0, actlen);
652
653 /* fall though */
654 case USB_ST_SETUP:
655 tr_setup:
656 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
657 usbd_transfer_submit(xfer);
658 break;
659
660 default: /* Error */
661 if (error != USB_ERR_CANCELLED) {
662 usbd_xfer_set_stall(xfer);
663 goto tr_setup;
664 }
665 break;
666 }
667 }
668
669 static void
usie_uc_tx_callback(struct usb_xfer * xfer,usb_error_t error)670 usie_uc_tx_callback(struct usb_xfer *xfer, usb_error_t error)
671 {
672 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
673 struct usb_page_cache *pc;
674 uint32_t actlen;
675
676 switch (USB_GET_STATE(xfer)) {
677 case USB_ST_TRANSFERRED:
678 case USB_ST_SETUP:
679 tr_setup:
680 pc = usbd_xfer_get_frame(xfer, 0);
681
682 /* handle CnS request */
683 struct mbuf *m = usbd_xfer_get_priv(xfer);
684
685 if (m != NULL) {
686 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
687 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
688 usbd_xfer_set_priv(xfer, NULL);
689 usbd_transfer_submit(xfer);
690 m_freem(m);
691 break;
692 }
693 /* standard ucom transfer */
694 if (ucom_get_data(ucom, pc, 0, USIE_BUFSIZE, &actlen)) {
695 usbd_xfer_set_frame_len(xfer, 0, actlen);
696 usbd_transfer_submit(xfer);
697 }
698 break;
699
700 default: /* Error */
701 if (error != USB_ERR_CANCELLED) {
702 usbd_xfer_set_stall(xfer);
703 goto tr_setup;
704 }
705 break;
706 }
707 }
708
709 static void
usie_uc_status_callback(struct usb_xfer * xfer,usb_error_t error)710 usie_uc_status_callback(struct usb_xfer *xfer, usb_error_t error)
711 {
712 struct usb_page_cache *pc;
713 struct {
714 struct usb_device_request req;
715 uint16_t param;
716 } st;
717 uint32_t actlen;
718 uint16_t param;
719
720 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
721
722 switch (USB_GET_STATE(xfer)) {
723 case USB_ST_TRANSFERRED:
724 DPRINTFN(4, "info received, actlen=%u\n", actlen);
725
726 if (actlen < sizeof(st)) {
727 DPRINTF("data too short actlen=%u\n", actlen);
728 goto tr_setup;
729 }
730 pc = usbd_xfer_get_frame(xfer, 0);
731 usbd_copy_out(pc, 0, &st, sizeof(st));
732
733 if (st.req.bmRequestType == 0xa1 && st.req.bRequest == 0x20) {
734 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
735 struct usie_softc *sc = ucom->sc_parent;
736
737 param = le16toh(st.param);
738 DPRINTF("param=%x\n", param);
739 sc->sc_msr = sc->sc_lsr = 0;
740 sc->sc_msr |= (param & USIE_DCD) ? SER_DCD : 0;
741 sc->sc_msr |= (param & USIE_DSR) ? SER_DSR : 0;
742 sc->sc_msr |= (param & USIE_RI) ? SER_RI : 0;
743 sc->sc_msr |= (param & USIE_CTS) ? 0 : SER_CTS;
744 sc->sc_msr |= (param & USIE_RTS) ? SER_RTS : 0;
745 sc->sc_msr |= (param & USIE_DTR) ? SER_DTR : 0;
746 }
747 /* fall though */
748 case USB_ST_SETUP:
749 tr_setup:
750 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
751 usbd_transfer_submit(xfer);
752 break;
753
754 default: /* Error */
755 DPRINTF("USB transfer error, %s\n",
756 usbd_errstr(error));
757
758 if (error != USB_ERR_CANCELLED) {
759 usbd_xfer_set_stall(xfer);
760 goto tr_setup;
761 }
762 break;
763 }
764 }
765
766 static void
usie_if_rx_callback(struct usb_xfer * xfer,usb_error_t error)767 usie_if_rx_callback(struct usb_xfer *xfer, usb_error_t error)
768 {
769 struct epoch_tracker et;
770 struct usie_softc *sc = usbd_xfer_softc(xfer);
771 if_t ifp = sc->sc_ifp;
772 struct mbuf *m0;
773 struct mbuf *m = NULL;
774 struct usie_desc *rxd;
775 uint32_t actlen;
776 uint16_t err;
777 uint16_t pkt;
778 uint16_t ipl;
779 uint16_t len;
780 uint16_t diff;
781 uint8_t pad;
782 uint8_t ipv;
783
784 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
785
786 switch (USB_GET_STATE(xfer)) {
787 case USB_ST_TRANSFERRED:
788 DPRINTFN(15, "rx done, actlen=%u\n", actlen);
789
790 if (actlen < sizeof(struct usie_hip)) {
791 DPRINTF("data too short %u\n", actlen);
792 goto tr_setup;
793 }
794 m = sc->sc_rxm;
795 sc->sc_rxm = NULL;
796
797 /* fall though */
798 case USB_ST_SETUP:
799 tr_setup:
800
801 if (sc->sc_rxm == NULL) {
802 sc->sc_rxm = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
803 MJUMPAGESIZE /* could be bigger than MCLBYTES */ );
804 }
805 if (sc->sc_rxm == NULL) {
806 DPRINTF("could not allocate Rx mbuf\n");
807 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
808 usbd_xfer_set_stall(xfer);
809 usbd_xfer_set_frames(xfer, 0);
810 } else {
811 /*
812 * Directly loading a mbuf cluster into DMA to
813 * save some data copying. This works because
814 * there is only one cluster.
815 */
816 usbd_xfer_set_frame_data(xfer, 0,
817 mtod(sc->sc_rxm, caddr_t), MIN(MJUMPAGESIZE, USIE_RXSZ_MAX));
818 usbd_xfer_set_frames(xfer, 1);
819 }
820 usbd_transfer_submit(xfer);
821 break;
822
823 default: /* Error */
824 DPRINTF("USB transfer error, %s\n", usbd_errstr(error));
825
826 if (error != USB_ERR_CANCELLED) {
827 /* try to clear stall first */
828 usbd_xfer_set_stall(xfer);
829 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
830 goto tr_setup;
831 }
832 if (sc->sc_rxm != NULL) {
833 m_freem(sc->sc_rxm);
834 sc->sc_rxm = NULL;
835 }
836 break;
837 }
838
839 if (m == NULL)
840 return;
841
842 mtx_unlock(&sc->sc_mtx);
843
844 m->m_pkthdr.len = m->m_len = actlen;
845
846 err = pkt = 0;
847
848 /* HW can aggregate multiple frames in a single USB xfer */
849 NET_EPOCH_ENTER(et);
850 for (;;) {
851 rxd = mtod(m, struct usie_desc *);
852
853 len = be16toh(rxd->hip.len) & USIE_HIP_IP_LEN_MASK;
854 pad = (rxd->hip.id & USIE_HIP_PAD) ? 1 : 0;
855 ipl = (len - pad - ETHER_HDR_LEN);
856 if (ipl >= len) {
857 DPRINTF("Corrupt frame\n");
858 m_freem(m);
859 break;
860 }
861 diff = sizeof(struct usie_desc) + ipl + pad;
862
863 if (((rxd->hip.id & USIE_HIP_MASK) != USIE_HIP_IP) ||
864 (be16toh(rxd->desc_type) & USIE_TYPE_MASK) != USIE_IP_RX) {
865 DPRINTF("received wrong type of packet\n");
866 m->m_data += diff;
867 m->m_pkthdr.len = (m->m_len -= diff);
868 err++;
869 if (m->m_pkthdr.len > 0)
870 continue;
871 m_freem(m);
872 break;
873 }
874 switch (be16toh(rxd->ethhdr.ether_type)) {
875 case ETHERTYPE_IP:
876 ipv = NETISR_IP;
877 break;
878 #ifdef INET6
879 case ETHERTYPE_IPV6:
880 ipv = NETISR_IPV6;
881 break;
882 #endif
883 default:
884 DPRINTF("unsupported ether type\n");
885 err++;
886 break;
887 }
888
889 /* the last packet */
890 if (m->m_pkthdr.len <= diff) {
891 m->m_data += (sizeof(struct usie_desc) + pad);
892 m->m_pkthdr.len = m->m_len = ipl;
893 m->m_pkthdr.rcvif = ifp;
894 BPF_MTAP(sc->sc_ifp, m);
895 netisr_dispatch(ipv, m);
896 break;
897 }
898 /* copy aggregated frames to another mbuf */
899 m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
900 if (__predict_false(m0 == NULL)) {
901 DPRINTF("could not allocate mbuf\n");
902 err++;
903 m_freem(m);
904 break;
905 }
906 m_copydata(m, sizeof(struct usie_desc) + pad, ipl, mtod(m0, caddr_t));
907 m0->m_pkthdr.rcvif = ifp;
908 m0->m_pkthdr.len = m0->m_len = ipl;
909
910 BPF_MTAP(sc->sc_ifp, m0);
911 netisr_dispatch(ipv, m0);
912
913 m->m_data += diff;
914 m->m_pkthdr.len = (m->m_len -= diff);
915 }
916 NET_EPOCH_EXIT(et);
917
918 mtx_lock(&sc->sc_mtx);
919
920 if_inc_counter(ifp, IFCOUNTER_IERRORS, err);
921 if_inc_counter(ifp, IFCOUNTER_IPACKETS, pkt);
922 }
923
924 static void
usie_if_tx_callback(struct usb_xfer * xfer,usb_error_t error)925 usie_if_tx_callback(struct usb_xfer *xfer, usb_error_t error)
926 {
927 struct usie_softc *sc = usbd_xfer_softc(xfer);
928 struct usb_page_cache *pc;
929 if_t ifp = sc->sc_ifp;
930 struct mbuf *m;
931 uint16_t size;
932
933 switch (USB_GET_STATE(xfer)) {
934 case USB_ST_TRANSFERRED:
935 DPRINTFN(11, "transfer complete\n");
936 if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE);
937 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
938
939 /* fall though */
940 case USB_ST_SETUP:
941 tr_setup:
942
943 if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
944 break;
945
946 m = if_dequeue(ifp);
947 if (m == NULL)
948 break;
949
950 if (m->m_pkthdr.len > (int)(MCLBYTES - ETHER_HDR_LEN +
951 ETHER_CRC_LEN - sizeof(sc->sc_txd))) {
952 DPRINTF("packet len is too big: %d\n",
953 m->m_pkthdr.len);
954 break;
955 }
956 pc = usbd_xfer_get_frame(xfer, 0);
957
958 sc->sc_txd.hip.len = htobe16(m->m_pkthdr.len +
959 ETHER_HDR_LEN + ETHER_CRC_LEN);
960 size = sizeof(sc->sc_txd);
961
962 usbd_copy_in(pc, 0, &sc->sc_txd, size);
963 usbd_m_copy_in(pc, size, m, 0, m->m_pkthdr.len);
964 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len +
965 size + ETHER_CRC_LEN);
966
967 BPF_MTAP(ifp, m);
968
969 m_freem(m);
970
971 usbd_transfer_submit(xfer);
972 break;
973
974 default: /* Error */
975 DPRINTF("USB transfer error, %s\n",
976 usbd_errstr(error));
977 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
978
979 if (error != USB_ERR_CANCELLED) {
980 usbd_xfer_set_stall(xfer);
981 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
982 goto tr_setup;
983 }
984 break;
985 }
986 }
987
988 static void
usie_if_status_callback(struct usb_xfer * xfer,usb_error_t error)989 usie_if_status_callback(struct usb_xfer *xfer, usb_error_t error)
990 {
991 struct usie_softc *sc = usbd_xfer_softc(xfer);
992 struct usb_page_cache *pc;
993 struct usb_cdc_notification cdc;
994 uint32_t actlen;
995
996 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
997
998 switch (USB_GET_STATE(xfer)) {
999 case USB_ST_TRANSFERRED:
1000 DPRINTFN(4, "info received, actlen=%d\n", actlen);
1001
1002 /* usb_cdc_notification - .data[16] */
1003 if (actlen < (sizeof(cdc) - 16)) {
1004 DPRINTF("data too short %d\n", actlen);
1005 goto tr_setup;
1006 }
1007 pc = usbd_xfer_get_frame(xfer, 0);
1008 usbd_copy_out(pc, 0, &cdc, (sizeof(cdc) - 16));
1009
1010 DPRINTFN(4, "bNotification=%x\n", cdc.bNotification);
1011
1012 if (cdc.bNotification & UCDC_N_RESPONSE_AVAILABLE) {
1013 taskqueue_enqueue(taskqueue_thread,
1014 &sc->sc_if_status_task);
1015 }
1016 /* fall though */
1017 case USB_ST_SETUP:
1018 tr_setup:
1019 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1020 usbd_transfer_submit(xfer);
1021 break;
1022
1023 default: /* Error */
1024 DPRINTF("USB transfer error, %s\n",
1025 usbd_errstr(error));
1026
1027 if (error != USB_ERR_CANCELLED) {
1028 usbd_xfer_set_stall(xfer);
1029 goto tr_setup;
1030 }
1031 break;
1032 }
1033 }
1034
1035 static void
usie_if_sync_to(void * arg)1036 usie_if_sync_to(void *arg)
1037 {
1038 struct usie_softc *sc = arg;
1039
1040 taskqueue_enqueue(taskqueue_thread, &sc->sc_if_sync_task);
1041 }
1042
1043 static void
usie_if_sync_cb(void * arg,int pending)1044 usie_if_sync_cb(void *arg, int pending)
1045 {
1046 struct usie_softc *sc = arg;
1047
1048 mtx_lock(&sc->sc_mtx);
1049
1050 /* call twice */
1051 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1052 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1053
1054 usb_callout_reset(&sc->sc_if_sync_ch, 2 * hz, usie_if_sync_to, sc);
1055
1056 mtx_unlock(&sc->sc_mtx);
1057 }
1058
1059 static void
usie_if_status_cb(void * arg,int pending)1060 usie_if_status_cb(void *arg, int pending)
1061 {
1062 struct usie_softc *sc = arg;
1063 if_t ifp = sc->sc_ifp;
1064 struct usb_device_request req;
1065 struct usie_hip *hip;
1066 struct usie_lsi *lsi;
1067 uint16_t actlen;
1068 uint8_t ntries;
1069 uint8_t pad;
1070
1071 mtx_lock(&sc->sc_mtx);
1072
1073 req.bmRequestType = UT_READ_CLASS_INTERFACE;
1074 req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
1075 USETW(req.wValue, 0);
1076 USETW(req.wIndex, sc->sc_if_ifnum);
1077 USETW(req.wLength, sizeof(sc->sc_status_temp));
1078
1079 for (ntries = 0; ntries != 10; ntries++) {
1080 int err;
1081
1082 err = usbd_do_request_flags(sc->sc_udev,
1083 &sc->sc_mtx, &req, sc->sc_status_temp, USB_SHORT_XFER_OK,
1084 &actlen, USB_DEFAULT_TIMEOUT);
1085
1086 if (err == 0)
1087 break;
1088
1089 DPRINTF("Control request failed: %s %d/10\n",
1090 usbd_errstr(err), ntries);
1091
1092 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
1093 }
1094
1095 if (ntries == 10) {
1096 mtx_unlock(&sc->sc_mtx);
1097 DPRINTF("Timeout\n");
1098 return;
1099 }
1100
1101 hip = (struct usie_hip *)sc->sc_status_temp;
1102
1103 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0;
1104
1105 DPRINTF("hip.id=%x hip.len=%d actlen=%u pad=%d\n",
1106 hip->id, be16toh(hip->len), actlen, pad);
1107
1108 switch (hip->id & USIE_HIP_MASK) {
1109 case USIE_HIP_SYNC2H:
1110 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1111 break;
1112 case USIE_HIP_RESTR:
1113 usb_callout_stop(&sc->sc_if_sync_ch);
1114 break;
1115 case USIE_HIP_UMTS:
1116 lsi = (struct usie_lsi *)(
1117 sc->sc_status_temp + sizeof(struct usie_hip) + pad);
1118
1119 DPRINTF("lsi.proto=%x lsi.len=%d\n", lsi->proto,
1120 be16toh(lsi->len));
1121
1122 if (lsi->proto != USIE_LSI_UMTS)
1123 break;
1124
1125 if (lsi->area == USIE_LSI_AREA_NO ||
1126 lsi->area == USIE_LSI_AREA_NODATA) {
1127 device_printf(sc->sc_dev, "no service available\n");
1128 break;
1129 }
1130 if (lsi->state == USIE_LSI_STATE_IDLE) {
1131 DPRINTF("lsi.state=%x\n", lsi->state);
1132 break;
1133 }
1134 DPRINTF("ctx=%x\n", hip->param);
1135 sc->sc_txd.hip.param = hip->param;
1136
1137 sc->sc_net.addr_len = lsi->pdp_addr_len;
1138 memcpy(&sc->sc_net.dns1_addr, &lsi->dns1_addr, 16);
1139 memcpy(&sc->sc_net.dns2_addr, &lsi->dns2_addr, 16);
1140 memcpy(sc->sc_net.pdp_addr, lsi->pdp_addr, 16);
1141 memcpy(sc->sc_net.gw_addr, lsi->gw_addr, 16);
1142 if_setflagbits(ifp, IFF_UP, 0);
1143 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0);
1144
1145 device_printf(sc->sc_dev, "IP Addr=%d.%d.%d.%d\n",
1146 *lsi->pdp_addr, *(lsi->pdp_addr + 1),
1147 *(lsi->pdp_addr + 2), *(lsi->pdp_addr + 3));
1148 device_printf(sc->sc_dev, "Gateway Addr=%d.%d.%d.%d\n",
1149 *lsi->gw_addr, *(lsi->gw_addr + 1),
1150 *(lsi->gw_addr + 2), *(lsi->gw_addr + 3));
1151 device_printf(sc->sc_dev, "Prim NS Addr=%d.%d.%d.%d\n",
1152 *lsi->dns1_addr, *(lsi->dns1_addr + 1),
1153 *(lsi->dns1_addr + 2), *(lsi->dns1_addr + 3));
1154 device_printf(sc->sc_dev, "Scnd NS Addr=%d.%d.%d.%d\n",
1155 *lsi->dns2_addr, *(lsi->dns2_addr + 1),
1156 *(lsi->dns2_addr + 2), *(lsi->dns2_addr + 3));
1157
1158 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI);
1159 break;
1160
1161 case USIE_HIP_RCGI:
1162 /* ignore, workaround for sloppy windows */
1163 break;
1164 default:
1165 DPRINTF("undefined msgid: %x\n", hip->id);
1166 break;
1167 }
1168
1169 mtx_unlock(&sc->sc_mtx);
1170 }
1171
1172 static void
usie_if_start(if_t ifp)1173 usie_if_start(if_t ifp)
1174 {
1175 struct usie_softc *sc = if_getsoftc(ifp);
1176
1177 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) {
1178 DPRINTF("Not running\n");
1179 return;
1180 }
1181 mtx_lock(&sc->sc_mtx);
1182 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_TX]);
1183 mtx_unlock(&sc->sc_mtx);
1184
1185 DPRINTFN(3, "interface started\n");
1186 }
1187
1188 static int
usie_if_output(if_t ifp,struct mbuf * m,const struct sockaddr * dst,struct route * ro)1189 usie_if_output(if_t ifp, struct mbuf *m, const struct sockaddr *dst,
1190 struct route *ro)
1191 {
1192 int err;
1193
1194 DPRINTF("proto=%x\n", dst->sa_family);
1195
1196 switch (dst->sa_family) {
1197 #ifdef INET6
1198 case AF_INET6;
1199 /* fall though */
1200 #endif
1201 case AF_INET:
1202 break;
1203
1204 /* silently drop dhclient packets */
1205 case AF_UNSPEC:
1206 m_freem(m);
1207 return (0);
1208
1209 /* drop other packet types */
1210 default:
1211 m_freem(m);
1212 return (EAFNOSUPPORT);
1213 }
1214
1215 err = if_transmit(ifp, m);
1216 if (err) {
1217 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1218 return (ENOBUFS);
1219 }
1220 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1221
1222 return (0);
1223 }
1224
1225 static void
usie_if_init(void * arg)1226 usie_if_init(void *arg)
1227 {
1228 struct usie_softc *sc = arg;
1229 if_t ifp = sc->sc_ifp;
1230 uint8_t i;
1231
1232 mtx_lock(&sc->sc_mtx);
1233
1234 /* write tx descriptor */
1235 sc->sc_txd.hip.id = USIE_HIP_CTX;
1236 sc->sc_txd.hip.param = 0; /* init value */
1237 sc->sc_txd.desc_type = htobe16(USIE_IP_TX);
1238
1239 for (i = 0; i != USIE_IF_N_XFER; i++)
1240 usbd_xfer_set_stall(sc->sc_if_xfer[i]);
1241
1242 usbd_transfer_start(sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_RX]);
1243 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_STATUS]);
1244 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_RX]);
1245
1246 /* if not running, initiate the modem */
1247 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING))
1248 usie_cns_req(sc, USIE_CNS_ID_INIT, USIE_CNS_OB_LINK_UPDATE);
1249
1250 mtx_unlock(&sc->sc_mtx);
1251
1252 DPRINTF("ifnet initialized\n");
1253 }
1254
1255 static void
usie_if_stop(struct usie_softc * sc)1256 usie_if_stop(struct usie_softc *sc)
1257 {
1258 usb_callout_drain(&sc->sc_if_sync_ch);
1259
1260 mtx_lock(&sc->sc_mtx);
1261
1262 /* usie_cns_req() clears IFF_* flags */
1263 usie_cns_req(sc, USIE_CNS_ID_STOP, USIE_CNS_OB_LINK_UPDATE);
1264
1265 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_TX]);
1266 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_RX]);
1267 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_STATUS]);
1268
1269 /* shutdown device */
1270 usie_if_cmd(sc, USIE_HIP_DOWN);
1271
1272 mtx_unlock(&sc->sc_mtx);
1273 }
1274
1275 static int
usie_if_ioctl(if_t ifp,u_long cmd,caddr_t data)1276 usie_if_ioctl(if_t ifp, u_long cmd, caddr_t data)
1277 {
1278 struct usie_softc *sc = if_getsoftc(ifp);
1279 struct ieee80211req *ireq;
1280 struct ieee80211req_sta_info si;
1281 struct ifmediareq *ifmr;
1282
1283 switch (cmd) {
1284 case SIOCSIFFLAGS:
1285 if (if_getflags(ifp) & IFF_UP) {
1286 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING))
1287 usie_if_init(sc);
1288 } else {
1289 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
1290 usie_if_stop(sc);
1291 }
1292 break;
1293
1294 case SIOCSIFCAP:
1295 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) {
1296 device_printf(sc->sc_dev,
1297 "Connect to the network first.\n");
1298 break;
1299 }
1300 mtx_lock(&sc->sc_mtx);
1301 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI);
1302 mtx_unlock(&sc->sc_mtx);
1303 break;
1304
1305 case SIOCG80211:
1306 ireq = (struct ieee80211req *)data;
1307
1308 if (ireq->i_type != IEEE80211_IOC_STA_INFO)
1309 break;
1310
1311 memset(&si, 0, sizeof(si));
1312 si.isi_len = sizeof(si);
1313 /*
1314 * ifconfig expects RSSI in 0.5dBm units
1315 * relative to the noise floor.
1316 */
1317 si.isi_rssi = 2 * sc->sc_rssi;
1318 if (copyout(&si, (uint8_t *)ireq->i_data + 8,
1319 sizeof(struct ieee80211req_sta_info)))
1320 DPRINTF("copyout failed\n");
1321 DPRINTF("80211\n");
1322 break;
1323
1324 case SIOCGIFMEDIA: /* to fool ifconfig */
1325 ifmr = (struct ifmediareq *)data;
1326 ifmr->ifm_count = 1;
1327 DPRINTF("media\n");
1328 break;
1329
1330 case SIOCSIFADDR:
1331 break;
1332
1333 default:
1334 return (EINVAL);
1335 }
1336 return (0);
1337 }
1338
1339 static int
usie_do_request(struct usie_softc * sc,struct usb_device_request * req,void * data)1340 usie_do_request(struct usie_softc *sc, struct usb_device_request *req,
1341 void *data)
1342 {
1343 int err = 0;
1344 int ntries;
1345
1346 mtx_assert(&sc->sc_mtx, MA_OWNED);
1347
1348 for (ntries = 0; ntries != 10; ntries++) {
1349 err = usbd_do_request(sc->sc_udev,
1350 &sc->sc_mtx, req, data);
1351 if (err == 0)
1352 break;
1353
1354 DPRINTF("Control request failed: %s %d/10\n",
1355 usbd_errstr(err), ntries);
1356
1357 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
1358 }
1359 return (err);
1360 }
1361
1362 static int
usie_if_cmd(struct usie_softc * sc,uint8_t cmd)1363 usie_if_cmd(struct usie_softc *sc, uint8_t cmd)
1364 {
1365 struct usb_device_request req;
1366 struct usie_hip msg;
1367
1368 msg.len = 0;
1369 msg.id = cmd;
1370 msg.param = 0;
1371
1372 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1373 req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
1374 USETW(req.wValue, 0);
1375 USETW(req.wIndex, sc->sc_if_ifnum);
1376 USETW(req.wLength, sizeof(msg));
1377
1378 DPRINTF("cmd=%x\n", cmd);
1379
1380 return (usie_do_request(sc, &req, &msg));
1381 }
1382
1383 static void
usie_cns_req(struct usie_softc * sc,uint32_t id,uint16_t obj)1384 usie_cns_req(struct usie_softc *sc, uint32_t id, uint16_t obj)
1385 {
1386 if_t ifp = sc->sc_ifp;
1387 struct mbuf *m;
1388 struct usb_xfer *xfer;
1389 struct usie_hip *hip;
1390 struct usie_cns *cns;
1391 uint8_t *param;
1392 uint8_t *tmp;
1393 uint8_t cns_len;
1394
1395 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1396 if (__predict_false(m == NULL)) {
1397 DPRINTF("could not allocate mbuf\n");
1398 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1399 return;
1400 }
1401 /* to align usie_hip{} on 32 bit */
1402 m->m_data += 3;
1403 param = mtod(m, uint8_t *);
1404 *param++ = USIE_HIP_FRM_CHR;
1405 hip = (struct usie_hip *)param;
1406 cns = (struct usie_cns *)(hip + 1);
1407
1408 tmp = param + USIE_HIPCNS_MIN - 2;
1409
1410 switch (obj) {
1411 case USIE_CNS_OB_LINK_UPDATE:
1412 cns_len = 2;
1413 cns->op = USIE_CNS_OP_SET;
1414 *tmp++ = 1; /* profile ID, always use 1 for now */
1415 *tmp++ = id == USIE_CNS_ID_INIT ? 1 : 0;
1416 break;
1417
1418 case USIE_CNS_OB_PROF_WRITE:
1419 cns_len = 245;
1420 cns->op = USIE_CNS_OP_SET;
1421 *tmp++ = 1; /* profile ID, always use 1 for now */
1422 *tmp++ = 2;
1423 memcpy(tmp, &sc->sc_net, 34);
1424 memset(tmp + 35, 0, 245 - 36);
1425 tmp += 243;
1426 break;
1427
1428 case USIE_CNS_OB_RSSI:
1429 cns_len = 0;
1430 cns->op = USIE_CNS_OP_REQ;
1431 break;
1432
1433 default:
1434 DPRINTF("unsupported CnS object type\n");
1435 return;
1436 }
1437 *tmp = USIE_HIP_FRM_CHR;
1438
1439 hip->len = htobe16(sizeof(struct usie_cns) + cns_len);
1440 hip->id = USIE_HIP_CNS2M;
1441 hip->param = 0; /* none for CnS */
1442
1443 cns->obj = htobe16(obj);
1444 cns->id = htobe32(id);
1445 cns->len = cns_len;
1446 cns->rsv0 = cns->rsv1 = 0; /* always '0' */
1447
1448 param = (uint8_t *)(cns + 1);
1449
1450 DPRINTF("param: %16D\n", param, ":");
1451
1452 m->m_pkthdr.len = m->m_len = USIE_HIPCNS_MIN + cns_len + 2;
1453
1454 xfer = sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_TX];
1455
1456 if (usbd_xfer_get_priv(xfer) == NULL) {
1457 usbd_xfer_set_priv(xfer, m);
1458 usbd_transfer_start(xfer);
1459 } else {
1460 DPRINTF("Dropped CNS event\n");
1461 m_freem(m);
1462 }
1463 }
1464
1465 static void
usie_cns_rsp(struct usie_softc * sc,struct usie_cns * cns)1466 usie_cns_rsp(struct usie_softc *sc, struct usie_cns *cns)
1467 {
1468 if_t ifp = sc->sc_ifp;
1469
1470 DPRINTF("received CnS\n");
1471
1472 switch (be16toh(cns->obj)) {
1473 case USIE_CNS_OB_LINK_UPDATE:
1474 if (be32toh(cns->id) & USIE_CNS_ID_INIT)
1475 usie_if_sync_to(sc);
1476 else if (be32toh(cns->id) & USIE_CNS_ID_STOP) {
1477 if_setflagbits(ifp, 0, IFF_UP);
1478 if_setdrvflagbits(ifp, 0,
1479 IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
1480 } else
1481 DPRINTF("undefined link update\n");
1482 break;
1483
1484 case USIE_CNS_OB_RSSI:
1485 sc->sc_rssi = be16toh(*(int16_t *)(cns + 1));
1486 if (sc->sc_rssi <= 0)
1487 device_printf(sc->sc_dev, "No signal\n");
1488 else {
1489 device_printf(sc->sc_dev, "RSSI=%ddBm\n",
1490 sc->sc_rssi - 110);
1491 }
1492 break;
1493
1494 case USIE_CNS_OB_PROF_WRITE:
1495 break;
1496
1497 case USIE_CNS_OB_PDP_READ:
1498 break;
1499
1500 default:
1501 DPRINTF("undefined CnS\n");
1502 break;
1503 }
1504 }
1505
1506 static void
usie_hip_rsp(struct usie_softc * sc,uint8_t * rsp,uint32_t len)1507 usie_hip_rsp(struct usie_softc *sc, uint8_t *rsp, uint32_t len)
1508 {
1509 struct usie_hip *hip;
1510 struct usie_cns *cns;
1511 uint32_t i;
1512 uint32_t j;
1513 uint32_t off;
1514 uint8_t tmp[USIE_HIPCNS_MAX] __aligned(4);
1515
1516 for (off = 0; (off + USIE_HIPCNS_MIN) <= len; off++) {
1517 uint8_t pad;
1518
1519 while ((off < len) && (rsp[off] == USIE_HIP_FRM_CHR))
1520 off++;
1521
1522 /* Unstuff the bytes */
1523 for (i = j = 0; ((i + off) < len) &&
1524 (j < USIE_HIPCNS_MAX); i++) {
1525 if (rsp[i + off] == USIE_HIP_FRM_CHR)
1526 break;
1527
1528 if (rsp[i + off] == USIE_HIP_ESC_CHR) {
1529 if ((i + off + 1) >= len)
1530 break;
1531 tmp[j++] = rsp[i++ + off + 1] ^ 0x20;
1532 } else {
1533 tmp[j++] = rsp[i + off];
1534 }
1535 }
1536
1537 off += i;
1538
1539 DPRINTF("frame len=%d\n", j);
1540
1541 if (j < sizeof(struct usie_hip)) {
1542 DPRINTF("too little data\n");
1543 break;
1544 }
1545 /*
1546 * Make sure we are not reading the stack if something
1547 * is wrong.
1548 */
1549 memset(tmp + j, 0, sizeof(tmp) - j);
1550
1551 hip = (struct usie_hip *)tmp;
1552
1553 DPRINTF("hip: len=%d msgID=%02x, param=%02x\n",
1554 be16toh(hip->len), hip->id, hip->param);
1555
1556 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0;
1557
1558 if ((hip->id & USIE_HIP_MASK) == USIE_HIP_CNS2H) {
1559 cns = (struct usie_cns *)(((uint8_t *)(hip + 1)) + pad);
1560
1561 if (j < (sizeof(struct usie_cns) +
1562 sizeof(struct usie_hip) + pad)) {
1563 DPRINTF("too little data\n");
1564 break;
1565 }
1566 DPRINTF("cns: obj=%04x, op=%02x, rsv0=%02x, "
1567 "app=%08x, rsv1=%02x, len=%d\n",
1568 be16toh(cns->obj), cns->op, cns->rsv0,
1569 be32toh(cns->id), cns->rsv1, cns->len);
1570
1571 if (cns->op & USIE_CNS_OP_ERR)
1572 DPRINTF("CnS error response\n");
1573 else
1574 usie_cns_rsp(sc, cns);
1575
1576 i = sizeof(struct usie_hip) + pad + sizeof(struct usie_cns);
1577 j = cns->len;
1578 } else {
1579 i = sizeof(struct usie_hip) + pad;
1580 j = be16toh(hip->len);
1581 }
1582 #ifdef USB_DEBUG
1583 if (usie_debug == 0)
1584 continue;
1585
1586 while (i < USIE_HIPCNS_MAX && j > 0) {
1587 DPRINTF("param[0x%02x] = 0x%02x\n", i, tmp[i]);
1588 i++;
1589 j--;
1590 }
1591 #endif
1592 }
1593 }
1594
1595 static int
usie_driver_loaded(struct module * mod,int what,void * arg)1596 usie_driver_loaded(struct module *mod, int what, void *arg)
1597 {
1598 switch (what) {
1599 case MOD_LOAD:
1600 /* register autoinstall handler */
1601 usie_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
1602 usie_autoinst, NULL, EVENTHANDLER_PRI_ANY);
1603 break;
1604 case MOD_UNLOAD:
1605 EVENTHANDLER_DEREGISTER(usb_dev_configured, usie_etag);
1606 break;
1607 default:
1608 return (EOPNOTSUPP);
1609 }
1610 return (0);
1611 }
1612