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 "opt_inet6.h"
31
32 #include <sys/param.h>
33 #include <sys/eventhandler.h>
34 #include <sys/systm.h>
35 #include <sys/queue.h>
36 #include <sys/systm.h>
37 #include <sys/socket.h>
38 #include <sys/kernel.h>
39 #include <sys/bus.h>
40 #include <sys/module.h>
41 #include <sys/sockio.h>
42 #include <sys/socket.h>
43 #include <sys/lock.h>
44 #include <sys/mutex.h>
45 #include <sys/condvar.h>
46 #include <sys/sysctl.h>
47 #include <sys/malloc.h>
48 #include <sys/taskqueue.h>
49
50 #include <net/if.h>
51 #include <net/if_var.h>
52
53 #include <machine/bus.h>
54
55 #include <net/if.h>
56 #include <net/if_types.h>
57 #include <net/netisr.h>
58 #include <net/bpf.h>
59 #include <net/ethernet.h>
60
61 #include <netinet/in.h>
62 #include <netinet/ip.h>
63 #include <netinet/ip6.h>
64 #include <netinet/udp.h>
65
66 #include <net80211/ieee80211_ioctl.h>
67
68 #include <dev/usb/usb.h>
69 #include <dev/usb/usbdi.h>
70 #include <dev/usb/usbdi_util.h>
71 #include <dev/usb/usb_cdc.h>
72 #include "usbdevs.h"
73
74 #define USB_DEBUG_VAR usie_debug
75 #include <dev/usb/usb_debug.h>
76 #include <dev/usb/usb_process.h>
77 #include <dev/usb/usb_msctest.h>
78
79 #include <dev/usb/serial/usb_serial.h>
80
81 #include <dev/usb/net/if_usievar.h>
82
83 #ifdef USB_DEBUG
84 static int usie_debug = 0;
85
86 static SYSCTL_NODE(_hw_usb, OID_AUTO, usie, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
87 "sierra USB modem");
88 SYSCTL_INT(_hw_usb_usie, OID_AUTO, debug, CTLFLAG_RWTUN, &usie_debug, 0,
89 "usie debug level");
90 #endif
91
92 /* Sierra Wireless Direct IP modems */
93 static const STRUCT_USB_HOST_ID usie_devs[] = {
94 #define USIE_DEV(v, d) { \
95 USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##d) }
96 USIE_DEV(SIERRA, MC8700),
97 USIE_DEV(SIERRA, TRUINSTALL),
98 USIE_DEV(AIRPRIME, USB308),
99 #undef USIE_DEV
100 };
101
102 static device_probe_t usie_probe;
103 static device_attach_t usie_attach;
104 static device_detach_t usie_detach;
105 static void usie_free_softc(struct usie_softc *);
106
107 static void usie_free(struct ucom_softc *);
108 static void usie_uc_update_line_state(struct ucom_softc *, uint8_t);
109 static void usie_uc_cfg_get_status(struct ucom_softc *, uint8_t *, uint8_t *);
110 static void usie_uc_cfg_set_dtr(struct ucom_softc *, uint8_t);
111 static void usie_uc_cfg_set_rts(struct ucom_softc *, uint8_t);
112 static void usie_uc_cfg_open(struct ucom_softc *);
113 static void usie_uc_cfg_close(struct ucom_softc *);
114 static void usie_uc_start_read(struct ucom_softc *);
115 static void usie_uc_stop_read(struct ucom_softc *);
116 static void usie_uc_start_write(struct ucom_softc *);
117 static void usie_uc_stop_write(struct ucom_softc *);
118
119 static usb_callback_t usie_uc_tx_callback;
120 static usb_callback_t usie_uc_rx_callback;
121 static usb_callback_t usie_uc_status_callback;
122 static usb_callback_t usie_if_tx_callback;
123 static usb_callback_t usie_if_rx_callback;
124 static usb_callback_t usie_if_status_callback;
125
126 static void usie_if_sync_to(void *);
127 static void usie_if_sync_cb(void *, int);
128 static void usie_if_status_cb(void *, int);
129
130 static void usie_if_start(if_t);
131 static int usie_if_output(if_t, struct mbuf *,
132 const struct sockaddr *, struct route *);
133 static void usie_if_init(void *);
134 static void usie_if_stop(struct usie_softc *);
135 static int usie_if_ioctl(if_t, u_long, caddr_t);
136
137 static int usie_do_request(struct usie_softc *, struct usb_device_request *, void *);
138 static int usie_if_cmd(struct usie_softc *, uint8_t);
139 static void usie_cns_req(struct usie_softc *, uint32_t, uint16_t);
140 static void usie_cns_rsp(struct usie_softc *, struct usie_cns *);
141 static void usie_hip_rsp(struct usie_softc *, uint8_t *, uint32_t);
142 static int usie_driver_loaded(struct module *, int, void *);
143
144 static const struct usb_config usie_uc_config[USIE_UC_N_XFER] = {
145 [USIE_UC_STATUS] = {
146 .type = UE_INTERRUPT,
147 .endpoint = UE_ADDR_ANY,
148 .direction = UE_DIR_IN,
149 .bufsize = 0, /* use wMaxPacketSize */
150 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
151 .callback = &usie_uc_status_callback,
152 },
153 [USIE_UC_RX] = {
154 .type = UE_BULK,
155 .endpoint = UE_ADDR_ANY,
156 .direction = UE_DIR_IN,
157 .bufsize = USIE_BUFSIZE,
158 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.proxy_buffer = 1,},
159 .callback = &usie_uc_rx_callback,
160 },
161 [USIE_UC_TX] = {
162 .type = UE_BULK,
163 .endpoint = UE_ADDR_ANY,
164 .direction = UE_DIR_OUT,
165 .bufsize = USIE_BUFSIZE,
166 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
167 .callback = &usie_uc_tx_callback,
168 }
169 };
170
171 static const struct usb_config usie_if_config[USIE_IF_N_XFER] = {
172 [USIE_IF_STATUS] = {
173 .type = UE_INTERRUPT,
174 .endpoint = UE_ADDR_ANY,
175 .direction = UE_DIR_IN,
176 .bufsize = 0, /* use wMaxPacketSize */
177 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
178 .callback = &usie_if_status_callback,
179 },
180 [USIE_IF_RX] = {
181 .type = UE_BULK,
182 .endpoint = UE_ADDR_ANY,
183 .direction = UE_DIR_IN,
184 .bufsize = USIE_BUFSIZE,
185 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
186 .callback = &usie_if_rx_callback,
187 },
188 [USIE_IF_TX] = {
189 .type = UE_BULK,
190 .endpoint = UE_ADDR_ANY,
191 .direction = UE_DIR_OUT,
192 .bufsize = MAX(USIE_BUFSIZE, MCLBYTES),
193 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
194 .callback = &usie_if_tx_callback,
195 }
196 };
197
198 static device_method_t usie_methods[] = {
199 DEVMETHOD(device_probe, usie_probe),
200 DEVMETHOD(device_attach, usie_attach),
201 DEVMETHOD(device_detach, usie_detach),
202 DEVMETHOD_END
203 };
204
205 static driver_t usie_driver = {
206 .name = "usie",
207 .methods = usie_methods,
208 .size = sizeof(struct usie_softc),
209 };
210
211 static eventhandler_tag usie_etag;
212
213 DRIVER_MODULE(usie, uhub, usie_driver, usie_driver_loaded, NULL);
214 MODULE_DEPEND(usie, ucom, 1, 1, 1);
215 MODULE_DEPEND(usie, usb, 1, 1, 1);
216 MODULE_VERSION(usie, 1);
217 USB_PNP_HOST_INFO(usie_devs);
218
219 static const struct ucom_callback usie_uc_callback = {
220 .ucom_cfg_get_status = &usie_uc_cfg_get_status,
221 .ucom_cfg_set_dtr = &usie_uc_cfg_set_dtr,
222 .ucom_cfg_set_rts = &usie_uc_cfg_set_rts,
223 .ucom_cfg_open = &usie_uc_cfg_open,
224 .ucom_cfg_close = &usie_uc_cfg_close,
225 .ucom_start_read = &usie_uc_start_read,
226 .ucom_stop_read = &usie_uc_stop_read,
227 .ucom_start_write = &usie_uc_start_write,
228 .ucom_stop_write = &usie_uc_stop_write,
229 .ucom_free = &usie_free,
230 };
231
232 static void
usie_autoinst(void * arg,struct usb_device * udev,struct usb_attach_arg * uaa)233 usie_autoinst(void *arg, struct usb_device *udev,
234 struct usb_attach_arg *uaa)
235 {
236 struct usb_interface *iface;
237 struct usb_interface_descriptor *id;
238 struct usb_device_request req;
239 int err;
240
241 if (uaa->dev_state != UAA_DEV_READY)
242 return;
243
244 iface = usbd_get_iface(udev, 0);
245 if (iface == NULL)
246 return;
247
248 id = iface->idesc;
249 if (id == NULL || id->bInterfaceClass != UICLASS_MASS)
250 return;
251
252 if (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa) != 0)
253 return; /* no device match */
254
255 if (bootverbose) {
256 DPRINTF("Ejecting %s %s\n",
257 usb_get_manufacturer(udev),
258 usb_get_product(udev));
259 }
260 req.bmRequestType = UT_VENDOR;
261 req.bRequest = UR_SET_INTERFACE;
262 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP);
263 USETW(req.wIndex, UHF_PORT_CONNECTION);
264 USETW(req.wLength, 0);
265
266 /* at this moment there is no mutex */
267 err = usbd_do_request_flags(udev, NULL, &req,
268 NULL, 0, NULL, 250 /* ms */ );
269
270 /* success, mark the udev as disappearing */
271 if (err == 0)
272 uaa->dev_state = UAA_DEV_EJECTING;
273 }
274
275 static int
usie_probe(device_t self)276 usie_probe(device_t self)
277 {
278 struct usb_attach_arg *uaa = device_get_ivars(self);
279
280 if (uaa->usb_mode != USB_MODE_HOST)
281 return (ENXIO);
282 if (uaa->info.bConfigIndex != USIE_CNFG_INDEX)
283 return (ENXIO);
284 if (uaa->info.bIfaceIndex != USIE_IFACE_INDEX)
285 return (ENXIO);
286 if (uaa->info.bInterfaceClass != UICLASS_VENDOR)
287 return (ENXIO);
288
289 return (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa));
290 }
291
292 static int
usie_attach(device_t self)293 usie_attach(device_t self)
294 {
295 struct usie_softc *sc = device_get_softc(self);
296 struct usb_attach_arg *uaa = device_get_ivars(self);
297 if_t ifp;
298 struct usb_interface *iface;
299 struct usb_interface_descriptor *id;
300 struct usb_device_request req;
301 int err;
302 uint16_t fwattr;
303 uint8_t iface_index;
304 uint8_t ifidx;
305 uint8_t start;
306
307 device_set_usb_desc(self);
308 sc->sc_udev = uaa->device;
309 sc->sc_dev = self;
310
311 mtx_init(&sc->sc_mtx, "usie", MTX_NETWORK_LOCK, MTX_DEF);
312 ucom_ref(&sc->sc_super_ucom);
313
314 TASK_INIT(&sc->sc_if_status_task, 0, usie_if_status_cb, sc);
315 TASK_INIT(&sc->sc_if_sync_task, 0, usie_if_sync_cb, sc);
316
317 usb_callout_init_mtx(&sc->sc_if_sync_ch, &sc->sc_mtx, 0);
318
319 mtx_lock(&sc->sc_mtx);
320
321 /* set power mode to D0 */
322 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
323 req.bRequest = USIE_POWER;
324 USETW(req.wValue, 0);
325 USETW(req.wIndex, 0);
326 USETW(req.wLength, 0);
327 if (usie_do_request(sc, &req, NULL)) {
328 mtx_unlock(&sc->sc_mtx);
329 goto detach;
330 }
331 /* read fw attr */
332 fwattr = 0;
333 req.bmRequestType = UT_READ_VENDOR_DEVICE;
334 req.bRequest = USIE_FW_ATTR;
335 USETW(req.wValue, 0);
336 USETW(req.wIndex, 0);
337 USETW(req.wLength, sizeof(fwattr));
338 if (usie_do_request(sc, &req, &fwattr)) {
339 mtx_unlock(&sc->sc_mtx);
340 goto detach;
341 }
342 mtx_unlock(&sc->sc_mtx);
343
344 /* check DHCP supports */
345 DPRINTF("fwattr=%x\n", fwattr);
346 if (!(fwattr & USIE_FW_DHCP)) {
347 device_printf(self, "DHCP is not supported. A firmware upgrade might be needed.\n");
348 }
349
350 /* find available interfaces */
351 sc->sc_nucom = 0;
352 for (ifidx = 0; ifidx < USIE_IFACE_MAX; ifidx++) {
353 iface = usbd_get_iface(uaa->device, ifidx);
354 if (iface == NULL)
355 break;
356
357 id = usbd_get_interface_descriptor(iface);
358 if ((id == NULL) || (id->bInterfaceClass != UICLASS_VENDOR))
359 continue;
360
361 /* setup Direct IP transfer */
362 if (id->bInterfaceNumber >= 7 && id->bNumEndpoints == 3) {
363 sc->sc_if_ifnum = id->bInterfaceNumber;
364 iface_index = ifidx;
365
366 DPRINTF("ifnum=%d, ifidx=%d\n",
367 sc->sc_if_ifnum, ifidx);
368
369 err = usbd_transfer_setup(uaa->device,
370 &iface_index, sc->sc_if_xfer, usie_if_config,
371 USIE_IF_N_XFER, sc, &sc->sc_mtx);
372
373 if (err == 0)
374 continue;
375
376 device_printf(self,
377 "could not allocate USB transfers on "
378 "iface_index=%d, err=%s\n",
379 iface_index, usbd_errstr(err));
380 goto detach;
381 }
382
383 /* setup ucom */
384 if (sc->sc_nucom >= USIE_UCOM_MAX)
385 continue;
386
387 usbd_set_parent_iface(uaa->device, ifidx,
388 uaa->info.bIfaceIndex);
389
390 DPRINTF("NumEndpoints=%d bInterfaceNumber=%d\n",
391 id->bNumEndpoints, id->bInterfaceNumber);
392
393 if (id->bNumEndpoints == 2) {
394 sc->sc_uc_xfer[sc->sc_nucom][0] = NULL;
395 start = 1;
396 } else
397 start = 0;
398
399 err = usbd_transfer_setup(uaa->device, &ifidx,
400 sc->sc_uc_xfer[sc->sc_nucom] + start,
401 usie_uc_config + start, USIE_UC_N_XFER - start,
402 &sc->sc_ucom[sc->sc_nucom], &sc->sc_mtx);
403
404 if (err != 0) {
405 DPRINTF("usbd_transfer_setup error=%s\n", usbd_errstr(err));
406 continue;
407 }
408
409 mtx_lock(&sc->sc_mtx);
410 for (; start < USIE_UC_N_XFER; start++)
411 usbd_xfer_set_stall(sc->sc_uc_xfer[sc->sc_nucom][start]);
412 mtx_unlock(&sc->sc_mtx);
413
414 sc->sc_uc_ifnum[sc->sc_nucom] = id->bInterfaceNumber;
415
416 sc->sc_nucom++; /* found a port */
417 }
418
419 if (sc->sc_nucom == 0) {
420 device_printf(self, "no comports found\n");
421 goto detach;
422 }
423
424 err = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
425 sc->sc_nucom, sc, &usie_uc_callback, &sc->sc_mtx);
426
427 if (err != 0) {
428 DPRINTF("ucom_attach failed\n");
429 goto detach;
430 }
431 DPRINTF("Found %d interfaces.\n", sc->sc_nucom);
432
433 /* setup ifnet (Direct IP) */
434 sc->sc_ifp = ifp = if_alloc(IFT_OTHER);
435 if_initname(ifp, "usie", device_get_unit(self));
436
437 if_setsoftc(ifp, sc);
438 if_setmtu(ifp, USIE_MTU_MAX);
439 if_setflagbits(ifp, IFF_NOARP, 0);
440 if_setinitfn(ifp, usie_if_init);
441 if_setioctlfn(ifp, usie_if_ioctl);
442 if_setstartfn(ifp, usie_if_start);
443 if_setoutputfn(ifp, usie_if_output);
444 if_setsendqlen(ifp, ifqmaxlen);
445 if_setsendqready(ifp);
446
447 if_attach(ifp);
448 bpfattach(ifp, DLT_RAW, 0);
449
450 if (fwattr & USIE_PM_AUTO) {
451 usbd_set_power_mode(uaa->device, USB_POWER_MODE_SAVE);
452 DPRINTF("enabling automatic suspend and resume\n");
453 } else {
454 usbd_set_power_mode(uaa->device, USB_POWER_MODE_ON);
455 DPRINTF("USB power is always ON\n");
456 }
457
458 DPRINTF("device attached\n");
459 return (0);
460
461 detach:
462 usie_detach(self);
463 return (ENOMEM);
464 }
465
466 static int
usie_detach(device_t self)467 usie_detach(device_t self)
468 {
469 struct usie_softc *sc = device_get_softc(self);
470 uint8_t x;
471
472 /* detach ifnet */
473 if (sc->sc_ifp != NULL) {
474 usie_if_stop(sc);
475 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER);
476 bpfdetach(sc->sc_ifp);
477 if_detach(sc->sc_ifp);
478 if_free(sc->sc_ifp);
479 sc->sc_ifp = NULL;
480 }
481 /* detach ucom */
482 if (sc->sc_nucom > 0)
483 ucom_detach(&sc->sc_super_ucom, sc->sc_ucom);
484
485 /* stop all USB transfers */
486 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER);
487
488 for (x = 0; x != USIE_UCOM_MAX; x++)
489 usbd_transfer_unsetup(sc->sc_uc_xfer[x], USIE_UC_N_XFER);
490
491 device_claim_softc(self);
492
493 usie_free_softc(sc);
494
495 return (0);
496 }
497
498 UCOM_UNLOAD_DRAIN(usie);
499
500 static void
usie_free_softc(struct usie_softc * sc)501 usie_free_softc(struct usie_softc *sc)
502 {
503 if (ucom_unref(&sc->sc_super_ucom)) {
504 mtx_destroy(&sc->sc_mtx);
505 device_free_softc(sc);
506 }
507 }
508
509 static void
usie_free(struct ucom_softc * ucom)510 usie_free(struct ucom_softc *ucom)
511 {
512 usie_free_softc(ucom->sc_parent);
513 }
514
515 static void
usie_uc_update_line_state(struct ucom_softc * ucom,uint8_t ls)516 usie_uc_update_line_state(struct ucom_softc *ucom, uint8_t ls)
517 {
518 struct usie_softc *sc = ucom->sc_parent;
519 struct usb_device_request req;
520
521 if (sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS] == NULL)
522 return;
523
524 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
525 req.bRequest = USIE_LINK_STATE;
526 USETW(req.wValue, ls);
527 USETW(req.wIndex, sc->sc_uc_ifnum[ucom->sc_subunit]);
528 USETW(req.wLength, 0);
529
530 DPRINTF("sc_uc_ifnum=%d\n", sc->sc_uc_ifnum[ucom->sc_subunit]);
531
532 usie_do_request(sc, &req, NULL);
533 }
534
535 static void
usie_uc_cfg_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)536 usie_uc_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
537 {
538 struct usie_softc *sc = ucom->sc_parent;
539
540 *msr = sc->sc_msr;
541 *lsr = sc->sc_lsr;
542 }
543
544 static void
usie_uc_cfg_set_dtr(struct ucom_softc * ucom,uint8_t flag)545 usie_uc_cfg_set_dtr(struct ucom_softc *ucom, uint8_t flag)
546 {
547 uint8_t dtr;
548
549 dtr = flag ? USIE_LS_DTR : 0;
550 usie_uc_update_line_state(ucom, dtr);
551 }
552
553 static void
usie_uc_cfg_set_rts(struct ucom_softc * ucom,uint8_t flag)554 usie_uc_cfg_set_rts(struct ucom_softc *ucom, uint8_t flag)
555 {
556 uint8_t rts;
557
558 rts = flag ? USIE_LS_RTS : 0;
559 usie_uc_update_line_state(ucom, rts);
560 }
561
562 static void
usie_uc_cfg_open(struct ucom_softc * ucom)563 usie_uc_cfg_open(struct ucom_softc *ucom)
564 {
565 struct usie_softc *sc = ucom->sc_parent;
566
567 /* usbd_transfer_start() is NULL safe */
568
569 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]);
570 }
571
572 static void
usie_uc_cfg_close(struct ucom_softc * ucom)573 usie_uc_cfg_close(struct ucom_softc *ucom)
574 {
575 struct usie_softc *sc = ucom->sc_parent;
576
577 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]);
578 }
579
580 static void
usie_uc_start_read(struct ucom_softc * ucom)581 usie_uc_start_read(struct ucom_softc *ucom)
582 {
583 struct usie_softc *sc = ucom->sc_parent;
584
585 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]);
586 }
587
588 static void
usie_uc_stop_read(struct ucom_softc * ucom)589 usie_uc_stop_read(struct ucom_softc *ucom)
590 {
591 struct usie_softc *sc = ucom->sc_parent;
592
593 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]);
594 }
595
596 static void
usie_uc_start_write(struct ucom_softc * ucom)597 usie_uc_start_write(struct ucom_softc *ucom)
598 {
599 struct usie_softc *sc = ucom->sc_parent;
600
601 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]);
602 }
603
604 static void
usie_uc_stop_write(struct ucom_softc * ucom)605 usie_uc_stop_write(struct ucom_softc *ucom)
606 {
607 struct usie_softc *sc = ucom->sc_parent;
608
609 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]);
610 }
611
612 static void
usie_uc_rx_callback(struct usb_xfer * xfer,usb_error_t error)613 usie_uc_rx_callback(struct usb_xfer *xfer, usb_error_t error)
614 {
615 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
616 struct usie_softc *sc = ucom->sc_parent;
617 struct usb_page_cache *pc;
618 uint32_t actlen;
619
620 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
621
622 switch (USB_GET_STATE(xfer)) {
623 case USB_ST_TRANSFERRED:
624 pc = usbd_xfer_get_frame(xfer, 0);
625
626 /* handle CnS response */
627 if (ucom == sc->sc_ucom && actlen >= USIE_HIPCNS_MIN) {
628 DPRINTF("transferred=%u\n", actlen);
629
630 /* check if it is really CnS reply */
631 usbd_copy_out(pc, 0, sc->sc_resp_temp, 1);
632
633 if (sc->sc_resp_temp[0] == USIE_HIP_FRM_CHR) {
634 /* verify actlen */
635 if (actlen > USIE_BUFSIZE)
636 actlen = USIE_BUFSIZE;
637
638 /* get complete message */
639 usbd_copy_out(pc, 0, sc->sc_resp_temp, actlen);
640 usie_hip_rsp(sc, sc->sc_resp_temp, actlen);
641
642 /* need to fall though */
643 goto tr_setup;
644 }
645 /* else call ucom_put_data() */
646 }
647 /* standard ucom transfer */
648 ucom_put_data(ucom, pc, 0, actlen);
649
650 /* fall though */
651 case USB_ST_SETUP:
652 tr_setup:
653 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
654 usbd_transfer_submit(xfer);
655 break;
656
657 default: /* Error */
658 if (error != USB_ERR_CANCELLED) {
659 usbd_xfer_set_stall(xfer);
660 goto tr_setup;
661 }
662 break;
663 }
664 }
665
666 static void
usie_uc_tx_callback(struct usb_xfer * xfer,usb_error_t error)667 usie_uc_tx_callback(struct usb_xfer *xfer, usb_error_t error)
668 {
669 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
670 struct usb_page_cache *pc;
671 uint32_t actlen;
672
673 switch (USB_GET_STATE(xfer)) {
674 case USB_ST_TRANSFERRED:
675 case USB_ST_SETUP:
676 tr_setup:
677 pc = usbd_xfer_get_frame(xfer, 0);
678
679 /* handle CnS request */
680 struct mbuf *m = usbd_xfer_get_priv(xfer);
681
682 if (m != NULL) {
683 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
684 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
685 usbd_xfer_set_priv(xfer, NULL);
686 usbd_transfer_submit(xfer);
687 m_freem(m);
688 break;
689 }
690 /* standard ucom transfer */
691 if (ucom_get_data(ucom, pc, 0, USIE_BUFSIZE, &actlen)) {
692 usbd_xfer_set_frame_len(xfer, 0, actlen);
693 usbd_transfer_submit(xfer);
694 }
695 break;
696
697 default: /* Error */
698 if (error != USB_ERR_CANCELLED) {
699 usbd_xfer_set_stall(xfer);
700 goto tr_setup;
701 }
702 break;
703 }
704 }
705
706 static void
usie_uc_status_callback(struct usb_xfer * xfer,usb_error_t error)707 usie_uc_status_callback(struct usb_xfer *xfer, usb_error_t error)
708 {
709 struct usb_page_cache *pc;
710 struct {
711 struct usb_device_request req;
712 uint16_t param;
713 } st;
714 uint32_t actlen;
715 uint16_t param;
716
717 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
718
719 switch (USB_GET_STATE(xfer)) {
720 case USB_ST_TRANSFERRED:
721 DPRINTFN(4, "info received, actlen=%u\n", actlen);
722
723 if (actlen < sizeof(st)) {
724 DPRINTF("data too short actlen=%u\n", actlen);
725 goto tr_setup;
726 }
727 pc = usbd_xfer_get_frame(xfer, 0);
728 usbd_copy_out(pc, 0, &st, sizeof(st));
729
730 if (st.req.bmRequestType == 0xa1 && st.req.bRequest == 0x20) {
731 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
732 struct usie_softc *sc = ucom->sc_parent;
733
734 param = le16toh(st.param);
735 DPRINTF("param=%x\n", param);
736 sc->sc_msr = sc->sc_lsr = 0;
737 sc->sc_msr |= (param & USIE_DCD) ? SER_DCD : 0;
738 sc->sc_msr |= (param & USIE_DSR) ? SER_DSR : 0;
739 sc->sc_msr |= (param & USIE_RI) ? SER_RI : 0;
740 sc->sc_msr |= (param & USIE_CTS) ? 0 : SER_CTS;
741 sc->sc_msr |= (param & USIE_RTS) ? SER_RTS : 0;
742 sc->sc_msr |= (param & USIE_DTR) ? SER_DTR : 0;
743 }
744 /* fall though */
745 case USB_ST_SETUP:
746 tr_setup:
747 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
748 usbd_transfer_submit(xfer);
749 break;
750
751 default: /* Error */
752 DPRINTF("USB transfer error, %s\n",
753 usbd_errstr(error));
754
755 if (error != USB_ERR_CANCELLED) {
756 usbd_xfer_set_stall(xfer);
757 goto tr_setup;
758 }
759 break;
760 }
761 }
762
763 static void
usie_if_rx_callback(struct usb_xfer * xfer,usb_error_t error)764 usie_if_rx_callback(struct usb_xfer *xfer, usb_error_t error)
765 {
766 struct epoch_tracker et;
767 struct usie_softc *sc = usbd_xfer_softc(xfer);
768 if_t ifp = sc->sc_ifp;
769 struct mbuf *m0;
770 struct mbuf *m = NULL;
771 struct usie_desc *rxd;
772 uint32_t actlen;
773 uint16_t err;
774 uint16_t pkt;
775 uint16_t ipl;
776 uint16_t len;
777 uint16_t diff;
778 uint8_t pad;
779 uint8_t ipv;
780
781 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
782
783 switch (USB_GET_STATE(xfer)) {
784 case USB_ST_TRANSFERRED:
785 DPRINTFN(15, "rx done, actlen=%u\n", actlen);
786
787 if (actlen < sizeof(struct usie_hip)) {
788 DPRINTF("data too short %u\n", actlen);
789 goto tr_setup;
790 }
791 m = sc->sc_rxm;
792 sc->sc_rxm = NULL;
793
794 /* fall though */
795 case USB_ST_SETUP:
796 tr_setup:
797
798 if (sc->sc_rxm == NULL) {
799 sc->sc_rxm = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
800 MJUMPAGESIZE /* could be bigger than MCLBYTES */ );
801 }
802 if (sc->sc_rxm == NULL) {
803 DPRINTF("could not allocate Rx mbuf\n");
804 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
805 usbd_xfer_set_stall(xfer);
806 usbd_xfer_set_frames(xfer, 0);
807 } else {
808 /*
809 * Directly loading a mbuf cluster into DMA to
810 * save some data copying. This works because
811 * there is only one cluster.
812 */
813 usbd_xfer_set_frame_data(xfer, 0,
814 mtod(sc->sc_rxm, caddr_t), MIN(MJUMPAGESIZE, USIE_RXSZ_MAX));
815 usbd_xfer_set_frames(xfer, 1);
816 }
817 usbd_transfer_submit(xfer);
818 break;
819
820 default: /* Error */
821 DPRINTF("USB transfer error, %s\n", usbd_errstr(error));
822
823 if (error != USB_ERR_CANCELLED) {
824 /* try to clear stall first */
825 usbd_xfer_set_stall(xfer);
826 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
827 goto tr_setup;
828 }
829 if (sc->sc_rxm != NULL) {
830 m_freem(sc->sc_rxm);
831 sc->sc_rxm = NULL;
832 }
833 break;
834 }
835
836 if (m == NULL)
837 return;
838
839 mtx_unlock(&sc->sc_mtx);
840
841 m->m_pkthdr.len = m->m_len = actlen;
842
843 err = pkt = 0;
844
845 /* HW can aggregate multiple frames in a single USB xfer */
846 NET_EPOCH_ENTER(et);
847 for (;;) {
848 rxd = mtod(m, struct usie_desc *);
849
850 len = be16toh(rxd->hip.len) & USIE_HIP_IP_LEN_MASK;
851 pad = (rxd->hip.id & USIE_HIP_PAD) ? 1 : 0;
852 ipl = (len - pad - ETHER_HDR_LEN);
853 if (ipl >= len) {
854 DPRINTF("Corrupt frame\n");
855 m_freem(m);
856 break;
857 }
858 diff = sizeof(struct usie_desc) + ipl + pad;
859
860 if (((rxd->hip.id & USIE_HIP_MASK) != USIE_HIP_IP) ||
861 (be16toh(rxd->desc_type) & USIE_TYPE_MASK) != USIE_IP_RX) {
862 DPRINTF("received wrong type of packet\n");
863 m->m_data += diff;
864 m->m_pkthdr.len = (m->m_len -= diff);
865 err++;
866 if (m->m_pkthdr.len > 0)
867 continue;
868 m_freem(m);
869 break;
870 }
871 switch (be16toh(rxd->ethhdr.ether_type)) {
872 case ETHERTYPE_IP:
873 ipv = NETISR_IP;
874 break;
875 #ifdef INET6
876 case ETHERTYPE_IPV6:
877 ipv = NETISR_IPV6;
878 break;
879 #endif
880 default:
881 DPRINTF("unsupported ether type\n");
882 err++;
883 break;
884 }
885
886 /* the last packet */
887 if (m->m_pkthdr.len <= diff) {
888 m->m_data += (sizeof(struct usie_desc) + pad);
889 m->m_pkthdr.len = m->m_len = ipl;
890 m->m_pkthdr.rcvif = ifp;
891 BPF_MTAP(sc->sc_ifp, m);
892 netisr_dispatch(ipv, m);
893 break;
894 }
895 /* copy aggregated frames to another mbuf */
896 m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
897 if (__predict_false(m0 == NULL)) {
898 DPRINTF("could not allocate mbuf\n");
899 err++;
900 m_freem(m);
901 break;
902 }
903 m_copydata(m, sizeof(struct usie_desc) + pad, ipl, mtod(m0, caddr_t));
904 m0->m_pkthdr.rcvif = ifp;
905 m0->m_pkthdr.len = m0->m_len = ipl;
906
907 BPF_MTAP(sc->sc_ifp, m0);
908 netisr_dispatch(ipv, m0);
909
910 m->m_data += diff;
911 m->m_pkthdr.len = (m->m_len -= diff);
912 }
913 NET_EPOCH_EXIT(et);
914
915 mtx_lock(&sc->sc_mtx);
916
917 if_inc_counter(ifp, IFCOUNTER_IERRORS, err);
918 if_inc_counter(ifp, IFCOUNTER_IPACKETS, pkt);
919 }
920
921 static void
usie_if_tx_callback(struct usb_xfer * xfer,usb_error_t error)922 usie_if_tx_callback(struct usb_xfer *xfer, usb_error_t error)
923 {
924 struct usie_softc *sc = usbd_xfer_softc(xfer);
925 struct usb_page_cache *pc;
926 if_t ifp = sc->sc_ifp;
927 struct mbuf *m;
928 uint16_t size;
929
930 switch (USB_GET_STATE(xfer)) {
931 case USB_ST_TRANSFERRED:
932 DPRINTFN(11, "transfer complete\n");
933 if_setdrvflagbits(ifp, 0, IFF_DRV_OACTIVE);
934 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
935
936 /* fall though */
937 case USB_ST_SETUP:
938 tr_setup:
939
940 if ((if_getdrvflags(ifp) & IFF_DRV_RUNNING) == 0)
941 break;
942
943 m = if_dequeue(ifp);
944 if (m == NULL)
945 break;
946
947 if (m->m_pkthdr.len > (int)(MCLBYTES - ETHER_HDR_LEN +
948 ETHER_CRC_LEN - sizeof(sc->sc_txd))) {
949 DPRINTF("packet len is too big: %d\n",
950 m->m_pkthdr.len);
951 break;
952 }
953 pc = usbd_xfer_get_frame(xfer, 0);
954
955 sc->sc_txd.hip.len = htobe16(m->m_pkthdr.len +
956 ETHER_HDR_LEN + ETHER_CRC_LEN);
957 size = sizeof(sc->sc_txd);
958
959 usbd_copy_in(pc, 0, &sc->sc_txd, size);
960 usbd_m_copy_in(pc, size, m, 0, m->m_pkthdr.len);
961 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len +
962 size + ETHER_CRC_LEN);
963
964 BPF_MTAP(ifp, m);
965
966 m_freem(m);
967
968 usbd_transfer_submit(xfer);
969 break;
970
971 default: /* Error */
972 DPRINTF("USB transfer error, %s\n",
973 usbd_errstr(error));
974 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
975
976 if (error != USB_ERR_CANCELLED) {
977 usbd_xfer_set_stall(xfer);
978 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
979 goto tr_setup;
980 }
981 break;
982 }
983 }
984
985 static void
usie_if_status_callback(struct usb_xfer * xfer,usb_error_t error)986 usie_if_status_callback(struct usb_xfer *xfer, usb_error_t error)
987 {
988 struct usie_softc *sc = usbd_xfer_softc(xfer);
989 struct usb_page_cache *pc;
990 struct usb_cdc_notification cdc;
991 uint32_t actlen;
992
993 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
994
995 switch (USB_GET_STATE(xfer)) {
996 case USB_ST_TRANSFERRED:
997 DPRINTFN(4, "info received, actlen=%d\n", actlen);
998
999 /* usb_cdc_notification - .data[16] */
1000 if (actlen < (sizeof(cdc) - 16)) {
1001 DPRINTF("data too short %d\n", actlen);
1002 goto tr_setup;
1003 }
1004 pc = usbd_xfer_get_frame(xfer, 0);
1005 usbd_copy_out(pc, 0, &cdc, (sizeof(cdc) - 16));
1006
1007 DPRINTFN(4, "bNotification=%x\n", cdc.bNotification);
1008
1009 if (cdc.bNotification & UCDC_N_RESPONSE_AVAILABLE) {
1010 taskqueue_enqueue(taskqueue_thread,
1011 &sc->sc_if_status_task);
1012 }
1013 /* fall though */
1014 case USB_ST_SETUP:
1015 tr_setup:
1016 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1017 usbd_transfer_submit(xfer);
1018 break;
1019
1020 default: /* Error */
1021 DPRINTF("USB transfer error, %s\n",
1022 usbd_errstr(error));
1023
1024 if (error != USB_ERR_CANCELLED) {
1025 usbd_xfer_set_stall(xfer);
1026 goto tr_setup;
1027 }
1028 break;
1029 }
1030 }
1031
1032 static void
usie_if_sync_to(void * arg)1033 usie_if_sync_to(void *arg)
1034 {
1035 struct usie_softc *sc = arg;
1036
1037 taskqueue_enqueue(taskqueue_thread, &sc->sc_if_sync_task);
1038 }
1039
1040 static void
usie_if_sync_cb(void * arg,int pending)1041 usie_if_sync_cb(void *arg, int pending)
1042 {
1043 struct usie_softc *sc = arg;
1044
1045 mtx_lock(&sc->sc_mtx);
1046
1047 /* call twice */
1048 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1049 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1050
1051 usb_callout_reset(&sc->sc_if_sync_ch, 2 * hz, usie_if_sync_to, sc);
1052
1053 mtx_unlock(&sc->sc_mtx);
1054 }
1055
1056 static void
usie_if_status_cb(void * arg,int pending)1057 usie_if_status_cb(void *arg, int pending)
1058 {
1059 struct usie_softc *sc = arg;
1060 if_t ifp = sc->sc_ifp;
1061 struct usb_device_request req;
1062 struct usie_hip *hip;
1063 struct usie_lsi *lsi;
1064 uint16_t actlen;
1065 uint8_t ntries;
1066 uint8_t pad;
1067
1068 mtx_lock(&sc->sc_mtx);
1069
1070 req.bmRequestType = UT_READ_CLASS_INTERFACE;
1071 req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
1072 USETW(req.wValue, 0);
1073 USETW(req.wIndex, sc->sc_if_ifnum);
1074 USETW(req.wLength, sizeof(sc->sc_status_temp));
1075
1076 for (ntries = 0; ntries != 10; ntries++) {
1077 int err;
1078
1079 err = usbd_do_request_flags(sc->sc_udev,
1080 &sc->sc_mtx, &req, sc->sc_status_temp, USB_SHORT_XFER_OK,
1081 &actlen, USB_DEFAULT_TIMEOUT);
1082
1083 if (err == 0)
1084 break;
1085
1086 DPRINTF("Control request failed: %s %d/10\n",
1087 usbd_errstr(err), ntries);
1088
1089 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
1090 }
1091
1092 if (ntries == 10) {
1093 mtx_unlock(&sc->sc_mtx);
1094 DPRINTF("Timeout\n");
1095 return;
1096 }
1097
1098 hip = (struct usie_hip *)sc->sc_status_temp;
1099
1100 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0;
1101
1102 DPRINTF("hip.id=%x hip.len=%d actlen=%u pad=%d\n",
1103 hip->id, be16toh(hip->len), actlen, pad);
1104
1105 switch (hip->id & USIE_HIP_MASK) {
1106 case USIE_HIP_SYNC2H:
1107 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1108 break;
1109 case USIE_HIP_RESTR:
1110 usb_callout_stop(&sc->sc_if_sync_ch);
1111 break;
1112 case USIE_HIP_UMTS:
1113 lsi = (struct usie_lsi *)(
1114 sc->sc_status_temp + sizeof(struct usie_hip) + pad);
1115
1116 DPRINTF("lsi.proto=%x lsi.len=%d\n", lsi->proto,
1117 be16toh(lsi->len));
1118
1119 if (lsi->proto != USIE_LSI_UMTS)
1120 break;
1121
1122 if (lsi->area == USIE_LSI_AREA_NO ||
1123 lsi->area == USIE_LSI_AREA_NODATA) {
1124 device_printf(sc->sc_dev, "no service available\n");
1125 break;
1126 }
1127 if (lsi->state == USIE_LSI_STATE_IDLE) {
1128 DPRINTF("lsi.state=%x\n", lsi->state);
1129 break;
1130 }
1131 DPRINTF("ctx=%x\n", hip->param);
1132 sc->sc_txd.hip.param = hip->param;
1133
1134 sc->sc_net.addr_len = lsi->pdp_addr_len;
1135 memcpy(&sc->sc_net.dns1_addr, &lsi->dns1_addr, 16);
1136 memcpy(&sc->sc_net.dns2_addr, &lsi->dns2_addr, 16);
1137 memcpy(sc->sc_net.pdp_addr, lsi->pdp_addr, 16);
1138 memcpy(sc->sc_net.gw_addr, lsi->gw_addr, 16);
1139 if_setflagbits(ifp, IFF_UP, 0);
1140 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0);
1141
1142 device_printf(sc->sc_dev, "IP Addr=%d.%d.%d.%d\n",
1143 *lsi->pdp_addr, *(lsi->pdp_addr + 1),
1144 *(lsi->pdp_addr + 2), *(lsi->pdp_addr + 3));
1145 device_printf(sc->sc_dev, "Gateway Addr=%d.%d.%d.%d\n",
1146 *lsi->gw_addr, *(lsi->gw_addr + 1),
1147 *(lsi->gw_addr + 2), *(lsi->gw_addr + 3));
1148 device_printf(sc->sc_dev, "Prim NS Addr=%d.%d.%d.%d\n",
1149 *lsi->dns1_addr, *(lsi->dns1_addr + 1),
1150 *(lsi->dns1_addr + 2), *(lsi->dns1_addr + 3));
1151 device_printf(sc->sc_dev, "Scnd NS Addr=%d.%d.%d.%d\n",
1152 *lsi->dns2_addr, *(lsi->dns2_addr + 1),
1153 *(lsi->dns2_addr + 2), *(lsi->dns2_addr + 3));
1154
1155 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI);
1156 break;
1157
1158 case USIE_HIP_RCGI:
1159 /* ignore, workaround for sloppy windows */
1160 break;
1161 default:
1162 DPRINTF("undefined msgid: %x\n", hip->id);
1163 break;
1164 }
1165
1166 mtx_unlock(&sc->sc_mtx);
1167 }
1168
1169 static void
usie_if_start(if_t ifp)1170 usie_if_start(if_t ifp)
1171 {
1172 struct usie_softc *sc = if_getsoftc(ifp);
1173
1174 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) {
1175 DPRINTF("Not running\n");
1176 return;
1177 }
1178 mtx_lock(&sc->sc_mtx);
1179 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_TX]);
1180 mtx_unlock(&sc->sc_mtx);
1181
1182 DPRINTFN(3, "interface started\n");
1183 }
1184
1185 static int
usie_if_output(if_t ifp,struct mbuf * m,const struct sockaddr * dst,struct route * ro)1186 usie_if_output(if_t ifp, struct mbuf *m, const struct sockaddr *dst,
1187 struct route *ro)
1188 {
1189 int err;
1190
1191 DPRINTF("proto=%x\n", dst->sa_family);
1192
1193 switch (dst->sa_family) {
1194 #ifdef INET6
1195 case AF_INET6:
1196 /* fall though */
1197 #endif
1198 case AF_INET:
1199 break;
1200
1201 /* silently drop dhclient packets */
1202 case AF_UNSPEC:
1203 m_freem(m);
1204 return (0);
1205
1206 /* drop other packet types */
1207 default:
1208 m_freem(m);
1209 return (EAFNOSUPPORT);
1210 }
1211
1212 err = if_transmit(ifp, m);
1213 if (err) {
1214 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1215 return (ENOBUFS);
1216 }
1217 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1218
1219 return (0);
1220 }
1221
1222 static void
usie_if_init(void * arg)1223 usie_if_init(void *arg)
1224 {
1225 struct usie_softc *sc = arg;
1226 if_t ifp = sc->sc_ifp;
1227 uint8_t i;
1228
1229 mtx_lock(&sc->sc_mtx);
1230
1231 /* write tx descriptor */
1232 sc->sc_txd.hip.id = USIE_HIP_CTX;
1233 sc->sc_txd.hip.param = 0; /* init value */
1234 sc->sc_txd.desc_type = htobe16(USIE_IP_TX);
1235
1236 for (i = 0; i != USIE_IF_N_XFER; i++)
1237 usbd_xfer_set_stall(sc->sc_if_xfer[i]);
1238
1239 usbd_transfer_start(sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_RX]);
1240 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_STATUS]);
1241 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_RX]);
1242
1243 /* if not running, initiate the modem */
1244 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING))
1245 usie_cns_req(sc, USIE_CNS_ID_INIT, USIE_CNS_OB_LINK_UPDATE);
1246
1247 mtx_unlock(&sc->sc_mtx);
1248
1249 DPRINTF("ifnet initialized\n");
1250 }
1251
1252 static void
usie_if_stop(struct usie_softc * sc)1253 usie_if_stop(struct usie_softc *sc)
1254 {
1255 usb_callout_drain(&sc->sc_if_sync_ch);
1256
1257 mtx_lock(&sc->sc_mtx);
1258
1259 /* usie_cns_req() clears IFF_* flags */
1260 usie_cns_req(sc, USIE_CNS_ID_STOP, USIE_CNS_OB_LINK_UPDATE);
1261
1262 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_TX]);
1263 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_RX]);
1264 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_STATUS]);
1265
1266 /* shutdown device */
1267 usie_if_cmd(sc, USIE_HIP_DOWN);
1268
1269 mtx_unlock(&sc->sc_mtx);
1270 }
1271
1272 static int
usie_if_ioctl(if_t ifp,u_long cmd,caddr_t data)1273 usie_if_ioctl(if_t ifp, u_long cmd, caddr_t data)
1274 {
1275 struct usie_softc *sc = if_getsoftc(ifp);
1276 struct ieee80211req *ireq;
1277 struct ieee80211req_sta_info si;
1278 struct ifmediareq *ifmr;
1279
1280 switch (cmd) {
1281 case SIOCSIFFLAGS:
1282 if (if_getflags(ifp) & IFF_UP) {
1283 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING))
1284 usie_if_init(sc);
1285 } else {
1286 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
1287 usie_if_stop(sc);
1288 }
1289 break;
1290
1291 case SIOCSIFCAP:
1292 if (!(if_getdrvflags(ifp) & IFF_DRV_RUNNING)) {
1293 device_printf(sc->sc_dev,
1294 "Connect to the network first.\n");
1295 break;
1296 }
1297 mtx_lock(&sc->sc_mtx);
1298 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI);
1299 mtx_unlock(&sc->sc_mtx);
1300 break;
1301
1302 case SIOCG80211:
1303 ireq = (struct ieee80211req *)data;
1304
1305 if (ireq->i_type != IEEE80211_IOC_STA_INFO)
1306 break;
1307
1308 memset(&si, 0, sizeof(si));
1309 si.isi_len = sizeof(si);
1310 /*
1311 * ifconfig expects RSSI in 0.5dBm units
1312 * relative to the noise floor.
1313 */
1314 si.isi_rssi = 2 * sc->sc_rssi;
1315 if (copyout(&si, (uint8_t *)ireq->i_data + 8,
1316 sizeof(struct ieee80211req_sta_info)))
1317 DPRINTF("copyout failed\n");
1318 DPRINTF("80211\n");
1319 break;
1320
1321 case SIOCGIFMEDIA: /* to fool ifconfig */
1322 ifmr = (struct ifmediareq *)data;
1323 ifmr->ifm_count = 1;
1324 DPRINTF("media\n");
1325 break;
1326
1327 case SIOCSIFADDR:
1328 break;
1329
1330 default:
1331 return (EINVAL);
1332 }
1333 return (0);
1334 }
1335
1336 static int
usie_do_request(struct usie_softc * sc,struct usb_device_request * req,void * data)1337 usie_do_request(struct usie_softc *sc, struct usb_device_request *req,
1338 void *data)
1339 {
1340 int err = 0;
1341 int ntries;
1342
1343 mtx_assert(&sc->sc_mtx, MA_OWNED);
1344
1345 for (ntries = 0; ntries != 10; ntries++) {
1346 err = usbd_do_request(sc->sc_udev,
1347 &sc->sc_mtx, req, data);
1348 if (err == 0)
1349 break;
1350
1351 DPRINTF("Control request failed: %s %d/10\n",
1352 usbd_errstr(err), ntries);
1353
1354 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
1355 }
1356 return (err);
1357 }
1358
1359 static int
usie_if_cmd(struct usie_softc * sc,uint8_t cmd)1360 usie_if_cmd(struct usie_softc *sc, uint8_t cmd)
1361 {
1362 struct usb_device_request req;
1363 struct usie_hip msg;
1364
1365 msg.len = 0;
1366 msg.id = cmd;
1367 msg.param = 0;
1368
1369 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1370 req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
1371 USETW(req.wValue, 0);
1372 USETW(req.wIndex, sc->sc_if_ifnum);
1373 USETW(req.wLength, sizeof(msg));
1374
1375 DPRINTF("cmd=%x\n", cmd);
1376
1377 return (usie_do_request(sc, &req, &msg));
1378 }
1379
1380 static void
usie_cns_req(struct usie_softc * sc,uint32_t id,uint16_t obj)1381 usie_cns_req(struct usie_softc *sc, uint32_t id, uint16_t obj)
1382 {
1383 if_t ifp = sc->sc_ifp;
1384 struct mbuf *m;
1385 struct usb_xfer *xfer;
1386 struct usie_hip *hip;
1387 struct usie_cns *cns;
1388 uint8_t *param;
1389 uint8_t *tmp;
1390 uint8_t cns_len;
1391
1392 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1393 if (__predict_false(m == NULL)) {
1394 DPRINTF("could not allocate mbuf\n");
1395 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1396 return;
1397 }
1398 /* to align usie_hip{} on 32 bit */
1399 m->m_data += 3;
1400 param = mtod(m, uint8_t *);
1401 *param++ = USIE_HIP_FRM_CHR;
1402 hip = (struct usie_hip *)param;
1403 cns = (struct usie_cns *)(hip + 1);
1404
1405 tmp = param + USIE_HIPCNS_MIN - 2;
1406
1407 switch (obj) {
1408 case USIE_CNS_OB_LINK_UPDATE:
1409 cns_len = 2;
1410 cns->op = USIE_CNS_OP_SET;
1411 *tmp++ = 1; /* profile ID, always use 1 for now */
1412 *tmp++ = id == USIE_CNS_ID_INIT ? 1 : 0;
1413 break;
1414
1415 case USIE_CNS_OB_PROF_WRITE:
1416 cns_len = 245;
1417 cns->op = USIE_CNS_OP_SET;
1418 *tmp++ = 1; /* profile ID, always use 1 for now */
1419 *tmp++ = 2;
1420 memcpy(tmp, &sc->sc_net, 34);
1421 memset(tmp + 35, 0, 245 - 36);
1422 tmp += 243;
1423 break;
1424
1425 case USIE_CNS_OB_RSSI:
1426 cns_len = 0;
1427 cns->op = USIE_CNS_OP_REQ;
1428 break;
1429
1430 default:
1431 DPRINTF("unsupported CnS object type\n");
1432 return;
1433 }
1434 *tmp = USIE_HIP_FRM_CHR;
1435
1436 hip->len = htobe16(sizeof(struct usie_cns) + cns_len);
1437 hip->id = USIE_HIP_CNS2M;
1438 hip->param = 0; /* none for CnS */
1439
1440 cns->obj = htobe16(obj);
1441 cns->id = htobe32(id);
1442 cns->len = cns_len;
1443 cns->rsv0 = cns->rsv1 = 0; /* always '0' */
1444
1445 param = (uint8_t *)(cns + 1);
1446
1447 DPRINTF("param: %16D\n", param, ":");
1448
1449 m->m_pkthdr.len = m->m_len = USIE_HIPCNS_MIN + cns_len + 2;
1450
1451 xfer = sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_TX];
1452
1453 if (usbd_xfer_get_priv(xfer) == NULL) {
1454 usbd_xfer_set_priv(xfer, m);
1455 usbd_transfer_start(xfer);
1456 } else {
1457 DPRINTF("Dropped CNS event\n");
1458 m_freem(m);
1459 }
1460 }
1461
1462 static void
usie_cns_rsp(struct usie_softc * sc,struct usie_cns * cns)1463 usie_cns_rsp(struct usie_softc *sc, struct usie_cns *cns)
1464 {
1465 if_t ifp = sc->sc_ifp;
1466
1467 DPRINTF("received CnS\n");
1468
1469 switch (be16toh(cns->obj)) {
1470 case USIE_CNS_OB_LINK_UPDATE:
1471 if (be32toh(cns->id) & USIE_CNS_ID_INIT)
1472 usie_if_sync_to(sc);
1473 else if (be32toh(cns->id) & USIE_CNS_ID_STOP) {
1474 if_setflagbits(ifp, 0, IFF_UP);
1475 if_setdrvflagbits(ifp, 0,
1476 IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
1477 } else
1478 DPRINTF("undefined link update\n");
1479 break;
1480
1481 case USIE_CNS_OB_RSSI:
1482 sc->sc_rssi = be16toh(*(int16_t *)(cns + 1));
1483 if (sc->sc_rssi <= 0)
1484 device_printf(sc->sc_dev, "No signal\n");
1485 else {
1486 device_printf(sc->sc_dev, "RSSI=%ddBm\n",
1487 sc->sc_rssi - 110);
1488 }
1489 break;
1490
1491 case USIE_CNS_OB_PROF_WRITE:
1492 break;
1493
1494 case USIE_CNS_OB_PDP_READ:
1495 break;
1496
1497 default:
1498 DPRINTF("undefined CnS\n");
1499 break;
1500 }
1501 }
1502
1503 static void
usie_hip_rsp(struct usie_softc * sc,uint8_t * rsp,uint32_t len)1504 usie_hip_rsp(struct usie_softc *sc, uint8_t *rsp, uint32_t len)
1505 {
1506 struct usie_hip *hip;
1507 struct usie_cns *cns;
1508 uint32_t i;
1509 uint32_t j;
1510 uint32_t off;
1511 uint8_t tmp[USIE_HIPCNS_MAX] __aligned(4);
1512
1513 for (off = 0; (off + USIE_HIPCNS_MIN) <= len; off++) {
1514 uint8_t pad;
1515
1516 while ((off < len) && (rsp[off] == USIE_HIP_FRM_CHR))
1517 off++;
1518
1519 /* Unstuff the bytes */
1520 for (i = j = 0; ((i + off) < len) &&
1521 (j < USIE_HIPCNS_MAX); i++) {
1522 if (rsp[i + off] == USIE_HIP_FRM_CHR)
1523 break;
1524
1525 if (rsp[i + off] == USIE_HIP_ESC_CHR) {
1526 if ((i + off + 1) >= len)
1527 break;
1528 tmp[j++] = rsp[i++ + off + 1] ^ 0x20;
1529 } else {
1530 tmp[j++] = rsp[i + off];
1531 }
1532 }
1533
1534 off += i;
1535
1536 DPRINTF("frame len=%d\n", j);
1537
1538 if (j < sizeof(struct usie_hip)) {
1539 DPRINTF("too little data\n");
1540 break;
1541 }
1542 /*
1543 * Make sure we are not reading the stack if something
1544 * is wrong.
1545 */
1546 memset(tmp + j, 0, sizeof(tmp) - j);
1547
1548 hip = (struct usie_hip *)tmp;
1549
1550 DPRINTF("hip: len=%d msgID=%02x, param=%02x\n",
1551 be16toh(hip->len), hip->id, hip->param);
1552
1553 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0;
1554
1555 if ((hip->id & USIE_HIP_MASK) == USIE_HIP_CNS2H) {
1556 cns = (struct usie_cns *)(((uint8_t *)(hip + 1)) + pad);
1557
1558 if (j < (sizeof(struct usie_cns) +
1559 sizeof(struct usie_hip) + pad)) {
1560 DPRINTF("too little data\n");
1561 break;
1562 }
1563 DPRINTF("cns: obj=%04x, op=%02x, rsv0=%02x, "
1564 "app=%08x, rsv1=%02x, len=%d\n",
1565 be16toh(cns->obj), cns->op, cns->rsv0,
1566 be32toh(cns->id), cns->rsv1, cns->len);
1567
1568 if (cns->op & USIE_CNS_OP_ERR)
1569 DPRINTF("CnS error response\n");
1570 else
1571 usie_cns_rsp(sc, cns);
1572
1573 i = sizeof(struct usie_hip) + pad + sizeof(struct usie_cns);
1574 j = cns->len;
1575 } else {
1576 i = sizeof(struct usie_hip) + pad;
1577 j = be16toh(hip->len);
1578 }
1579 #ifdef USB_DEBUG
1580 if (usie_debug == 0)
1581 continue;
1582
1583 while (i < USIE_HIPCNS_MAX && j > 0) {
1584 DPRINTF("param[0x%02x] = 0x%02x\n", i, tmp[i]);
1585 i++;
1586 j--;
1587 }
1588 #endif
1589 }
1590 }
1591
1592 static int
usie_driver_loaded(struct module * mod,int what,void * arg)1593 usie_driver_loaded(struct module *mod, int what, void *arg)
1594 {
1595 switch (what) {
1596 case MOD_LOAD:
1597 /* register autoinstall handler */
1598 usie_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
1599 usie_autoinst, NULL, EVENTHANDLER_PRI_ANY);
1600 break;
1601 case MOD_UNLOAD:
1602 EVENTHANDLER_DEREGISTER(usb_dev_configured, usie_etag);
1603 break;
1604 default:
1605 return (EOPNOTSUPP);
1606 }
1607 return (0);
1608 }
1609