1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011 Anybots Inc
5 * written by Akinori Furukoshi <[email protected]>
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/cdefs.h>
31 __FBSDID("$FreeBSD$");
32
33 #include <sys/param.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, 0, "sierra USB modem");
87 SYSCTL_INT(_hw_usb_usie, OID_AUTO, debug, CTLFLAG_RWTUN, &usie_debug, 0,
88 "usie debug level");
89 #endif
90
91 /* Sierra Wireless Direct IP modems */
92 static const STRUCT_USB_HOST_ID usie_devs[] = {
93 #define USIE_DEV(v, d) { \
94 USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##d) }
95 USIE_DEV(SIERRA, MC8700),
96 USIE_DEV(SIERRA, TRUINSTALL),
97 USIE_DEV(AIRPRIME, USB308),
98 #undef USIE_DEV
99 };
100
101 static device_probe_t usie_probe;
102 static device_attach_t usie_attach;
103 static device_detach_t usie_detach;
104 static void usie_free_softc(struct usie_softc *);
105
106 static void usie_free(struct ucom_softc *);
107 static void usie_uc_update_line_state(struct ucom_softc *, uint8_t);
108 static void usie_uc_cfg_get_status(struct ucom_softc *, uint8_t *, uint8_t *);
109 static void usie_uc_cfg_set_dtr(struct ucom_softc *, uint8_t);
110 static void usie_uc_cfg_set_rts(struct ucom_softc *, uint8_t);
111 static void usie_uc_cfg_open(struct ucom_softc *);
112 static void usie_uc_cfg_close(struct ucom_softc *);
113 static void usie_uc_start_read(struct ucom_softc *);
114 static void usie_uc_stop_read(struct ucom_softc *);
115 static void usie_uc_start_write(struct ucom_softc *);
116 static void usie_uc_stop_write(struct ucom_softc *);
117
118 static usb_callback_t usie_uc_tx_callback;
119 static usb_callback_t usie_uc_rx_callback;
120 static usb_callback_t usie_uc_status_callback;
121 static usb_callback_t usie_if_tx_callback;
122 static usb_callback_t usie_if_rx_callback;
123 static usb_callback_t usie_if_status_callback;
124
125 static void usie_if_sync_to(void *);
126 static void usie_if_sync_cb(void *, int);
127 static void usie_if_status_cb(void *, int);
128
129 static void usie_if_start(struct ifnet *);
130 static int usie_if_output(struct ifnet *, struct mbuf *,
131 const struct sockaddr *, struct route *);
132 static void usie_if_init(void *);
133 static void usie_if_stop(struct usie_softc *);
134 static int usie_if_ioctl(struct ifnet *, u_long, caddr_t);
135
136 static int usie_do_request(struct usie_softc *, struct usb_device_request *, void *);
137 static int usie_if_cmd(struct usie_softc *, uint8_t);
138 static void usie_cns_req(struct usie_softc *, uint32_t, uint16_t);
139 static void usie_cns_rsp(struct usie_softc *, struct usie_cns *);
140 static void usie_hip_rsp(struct usie_softc *, uint8_t *, uint32_t);
141 static int usie_driver_loaded(struct module *, int, void *);
142
143 static const struct usb_config usie_uc_config[USIE_UC_N_XFER] = {
144 [USIE_UC_STATUS] = {
145 .type = UE_INTERRUPT,
146 .endpoint = UE_ADDR_ANY,
147 .direction = UE_DIR_IN,
148 .bufsize = 0, /* use wMaxPacketSize */
149 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
150 .callback = &usie_uc_status_callback,
151 },
152 [USIE_UC_RX] = {
153 .type = UE_BULK,
154 .endpoint = UE_ADDR_ANY,
155 .direction = UE_DIR_IN,
156 .bufsize = USIE_BUFSIZE,
157 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.proxy_buffer = 1,},
158 .callback = &usie_uc_rx_callback,
159 },
160 [USIE_UC_TX] = {
161 .type = UE_BULK,
162 .endpoint = UE_ADDR_ANY,
163 .direction = UE_DIR_OUT,
164 .bufsize = USIE_BUFSIZE,
165 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
166 .callback = &usie_uc_tx_callback,
167 }
168 };
169
170 static const struct usb_config usie_if_config[USIE_IF_N_XFER] = {
171 [USIE_IF_STATUS] = {
172 .type = UE_INTERRUPT,
173 .endpoint = UE_ADDR_ANY,
174 .direction = UE_DIR_IN,
175 .bufsize = 0, /* use wMaxPacketSize */
176 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
177 .callback = &usie_if_status_callback,
178 },
179 [USIE_IF_RX] = {
180 .type = UE_BULK,
181 .endpoint = UE_ADDR_ANY,
182 .direction = UE_DIR_IN,
183 .bufsize = USIE_BUFSIZE,
184 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
185 .callback = &usie_if_rx_callback,
186 },
187 [USIE_IF_TX] = {
188 .type = UE_BULK,
189 .endpoint = UE_ADDR_ANY,
190 .direction = UE_DIR_OUT,
191 .bufsize = MAX(USIE_BUFSIZE, MCLBYTES),
192 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
193 .callback = &usie_if_tx_callback,
194 }
195 };
196
197 static device_method_t usie_methods[] = {
198 DEVMETHOD(device_probe, usie_probe),
199 DEVMETHOD(device_attach, usie_attach),
200 DEVMETHOD(device_detach, usie_detach),
201 DEVMETHOD_END
202 };
203
204 static driver_t usie_driver = {
205 .name = "usie",
206 .methods = usie_methods,
207 .size = sizeof(struct usie_softc),
208 };
209
210 static devclass_t usie_devclass;
211 static eventhandler_tag usie_etag;
212
213 DRIVER_MODULE(usie, uhub, usie_driver, usie_devclass, usie_driver_loaded, 0);
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 struct ifnet *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
436 if (ifp == NULL) {
437 device_printf(self, "Could not allocate a network interface\n");
438 goto detach;
439 }
440 if_initname(ifp, "usie", device_get_unit(self));
441
442 ifp->if_softc = sc;
443 ifp->if_mtu = USIE_MTU_MAX;
444 ifp->if_flags |= IFF_NOARP;
445 ifp->if_init = usie_if_init;
446 ifp->if_ioctl = usie_if_ioctl;
447 ifp->if_start = usie_if_start;
448 ifp->if_output = usie_if_output;
449 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
450 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
451 IFQ_SET_READY(&ifp->if_snd);
452
453 if_attach(ifp);
454 bpfattach(ifp, DLT_RAW, 0);
455
456 if (fwattr & USIE_PM_AUTO) {
457 usbd_set_power_mode(uaa->device, USB_POWER_MODE_SAVE);
458 DPRINTF("enabling automatic suspend and resume\n");
459 } else {
460 usbd_set_power_mode(uaa->device, USB_POWER_MODE_ON);
461 DPRINTF("USB power is always ON\n");
462 }
463
464 DPRINTF("device attached\n");
465 return (0);
466
467 detach:
468 usie_detach(self);
469 return (ENOMEM);
470 }
471
472 static int
usie_detach(device_t self)473 usie_detach(device_t self)
474 {
475 struct usie_softc *sc = device_get_softc(self);
476 uint8_t x;
477
478 /* detach ifnet */
479 if (sc->sc_ifp != NULL) {
480 usie_if_stop(sc);
481 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER);
482 bpfdetach(sc->sc_ifp);
483 if_detach(sc->sc_ifp);
484 if_free(sc->sc_ifp);
485 sc->sc_ifp = NULL;
486 }
487 /* detach ucom */
488 if (sc->sc_nucom > 0)
489 ucom_detach(&sc->sc_super_ucom, sc->sc_ucom);
490
491 /* stop all USB transfers */
492 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER);
493
494 for (x = 0; x != USIE_UCOM_MAX; x++)
495 usbd_transfer_unsetup(sc->sc_uc_xfer[x], USIE_UC_N_XFER);
496
497
498 device_claim_softc(self);
499
500 usie_free_softc(sc);
501
502 return (0);
503 }
504
505 UCOM_UNLOAD_DRAIN(usie);
506
507 static void
usie_free_softc(struct usie_softc * sc)508 usie_free_softc(struct usie_softc *sc)
509 {
510 if (ucom_unref(&sc->sc_super_ucom)) {
511 mtx_destroy(&sc->sc_mtx);
512 device_free_softc(sc);
513 }
514 }
515
516 static void
usie_free(struct ucom_softc * ucom)517 usie_free(struct ucom_softc *ucom)
518 {
519 usie_free_softc(ucom->sc_parent);
520 }
521
522 static void
usie_uc_update_line_state(struct ucom_softc * ucom,uint8_t ls)523 usie_uc_update_line_state(struct ucom_softc *ucom, uint8_t ls)
524 {
525 struct usie_softc *sc = ucom->sc_parent;
526 struct usb_device_request req;
527
528 if (sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS] == NULL)
529 return;
530
531 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
532 req.bRequest = USIE_LINK_STATE;
533 USETW(req.wValue, ls);
534 USETW(req.wIndex, sc->sc_uc_ifnum[ucom->sc_subunit]);
535 USETW(req.wLength, 0);
536
537 DPRINTF("sc_uc_ifnum=%d\n", sc->sc_uc_ifnum[ucom->sc_subunit]);
538
539 usie_do_request(sc, &req, NULL);
540 }
541
542 static void
usie_uc_cfg_get_status(struct ucom_softc * ucom,uint8_t * lsr,uint8_t * msr)543 usie_uc_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
544 {
545 struct usie_softc *sc = ucom->sc_parent;
546
547 *msr = sc->sc_msr;
548 *lsr = sc->sc_lsr;
549 }
550
551 static void
usie_uc_cfg_set_dtr(struct ucom_softc * ucom,uint8_t flag)552 usie_uc_cfg_set_dtr(struct ucom_softc *ucom, uint8_t flag)
553 {
554 uint8_t dtr;
555
556 dtr = flag ? USIE_LS_DTR : 0;
557 usie_uc_update_line_state(ucom, dtr);
558 }
559
560 static void
usie_uc_cfg_set_rts(struct ucom_softc * ucom,uint8_t flag)561 usie_uc_cfg_set_rts(struct ucom_softc *ucom, uint8_t flag)
562 {
563 uint8_t rts;
564
565 rts = flag ? USIE_LS_RTS : 0;
566 usie_uc_update_line_state(ucom, rts);
567 }
568
569 static void
usie_uc_cfg_open(struct ucom_softc * ucom)570 usie_uc_cfg_open(struct ucom_softc *ucom)
571 {
572 struct usie_softc *sc = ucom->sc_parent;
573
574 /* usbd_transfer_start() is NULL safe */
575
576 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]);
577 }
578
579 static void
usie_uc_cfg_close(struct ucom_softc * ucom)580 usie_uc_cfg_close(struct ucom_softc *ucom)
581 {
582 struct usie_softc *sc = ucom->sc_parent;
583
584 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]);
585 }
586
587 static void
usie_uc_start_read(struct ucom_softc * ucom)588 usie_uc_start_read(struct ucom_softc *ucom)
589 {
590 struct usie_softc *sc = ucom->sc_parent;
591
592 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]);
593 }
594
595 static void
usie_uc_stop_read(struct ucom_softc * ucom)596 usie_uc_stop_read(struct ucom_softc *ucom)
597 {
598 struct usie_softc *sc = ucom->sc_parent;
599
600 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]);
601 }
602
603 static void
usie_uc_start_write(struct ucom_softc * ucom)604 usie_uc_start_write(struct ucom_softc *ucom)
605 {
606 struct usie_softc *sc = ucom->sc_parent;
607
608 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]);
609 }
610
611 static void
usie_uc_stop_write(struct ucom_softc * ucom)612 usie_uc_stop_write(struct ucom_softc *ucom)
613 {
614 struct usie_softc *sc = ucom->sc_parent;
615
616 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]);
617 }
618
619 static void
usie_uc_rx_callback(struct usb_xfer * xfer,usb_error_t error)620 usie_uc_rx_callback(struct usb_xfer *xfer, usb_error_t error)
621 {
622 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
623 struct usie_softc *sc = ucom->sc_parent;
624 struct usb_page_cache *pc;
625 uint32_t actlen;
626
627 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
628
629 switch (USB_GET_STATE(xfer)) {
630 case USB_ST_TRANSFERRED:
631 pc = usbd_xfer_get_frame(xfer, 0);
632
633 /* handle CnS response */
634 if (ucom == sc->sc_ucom && actlen >= USIE_HIPCNS_MIN) {
635
636 DPRINTF("transferred=%u\n", actlen);
637
638 /* check if it is really CnS reply */
639 usbd_copy_out(pc, 0, sc->sc_resp_temp, 1);
640
641 if (sc->sc_resp_temp[0] == USIE_HIP_FRM_CHR) {
642
643 /* verify actlen */
644 if (actlen > USIE_BUFSIZE)
645 actlen = USIE_BUFSIZE;
646
647 /* get complete message */
648 usbd_copy_out(pc, 0, sc->sc_resp_temp, actlen);
649 usie_hip_rsp(sc, sc->sc_resp_temp, actlen);
650
651 /* need to fall though */
652 goto tr_setup;
653 }
654 /* else call ucom_put_data() */
655 }
656 /* standard ucom transfer */
657 ucom_put_data(ucom, pc, 0, actlen);
658
659 /* fall though */
660 case USB_ST_SETUP:
661 tr_setup:
662 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
663 usbd_transfer_submit(xfer);
664 break;
665
666 default: /* Error */
667 if (error != USB_ERR_CANCELLED) {
668 usbd_xfer_set_stall(xfer);
669 goto tr_setup;
670 }
671 break;
672 }
673 }
674
675 static void
usie_uc_tx_callback(struct usb_xfer * xfer,usb_error_t error)676 usie_uc_tx_callback(struct usb_xfer *xfer, usb_error_t error)
677 {
678 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
679 struct usb_page_cache *pc;
680 uint32_t actlen;
681
682 switch (USB_GET_STATE(xfer)) {
683 case USB_ST_TRANSFERRED:
684 case USB_ST_SETUP:
685 tr_setup:
686 pc = usbd_xfer_get_frame(xfer, 0);
687
688 /* handle CnS request */
689 struct mbuf *m = usbd_xfer_get_priv(xfer);
690
691 if (m != NULL) {
692 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
693 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
694 usbd_xfer_set_priv(xfer, NULL);
695 usbd_transfer_submit(xfer);
696 m_freem(m);
697 break;
698 }
699 /* standard ucom transfer */
700 if (ucom_get_data(ucom, pc, 0, USIE_BUFSIZE, &actlen)) {
701 usbd_xfer_set_frame_len(xfer, 0, actlen);
702 usbd_transfer_submit(xfer);
703 }
704 break;
705
706 default: /* Error */
707 if (error != USB_ERR_CANCELLED) {
708 usbd_xfer_set_stall(xfer);
709 goto tr_setup;
710 }
711 break;
712 }
713 }
714
715 static void
usie_uc_status_callback(struct usb_xfer * xfer,usb_error_t error)716 usie_uc_status_callback(struct usb_xfer *xfer, usb_error_t error)
717 {
718 struct usb_page_cache *pc;
719 struct {
720 struct usb_device_request req;
721 uint16_t param;
722 } st;
723 uint32_t actlen;
724 uint16_t param;
725
726 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
727
728 switch (USB_GET_STATE(xfer)) {
729 case USB_ST_TRANSFERRED:
730 DPRINTFN(4, "info received, actlen=%u\n", actlen);
731
732 if (actlen < sizeof(st)) {
733 DPRINTF("data too short actlen=%u\n", actlen);
734 goto tr_setup;
735 }
736 pc = usbd_xfer_get_frame(xfer, 0);
737 usbd_copy_out(pc, 0, &st, sizeof(st));
738
739 if (st.req.bmRequestType == 0xa1 && st.req.bRequest == 0x20) {
740 struct ucom_softc *ucom = usbd_xfer_softc(xfer);
741 struct usie_softc *sc = ucom->sc_parent;
742
743 param = le16toh(st.param);
744 DPRINTF("param=%x\n", param);
745 sc->sc_msr = sc->sc_lsr = 0;
746 sc->sc_msr |= (param & USIE_DCD) ? SER_DCD : 0;
747 sc->sc_msr |= (param & USIE_DSR) ? SER_DSR : 0;
748 sc->sc_msr |= (param & USIE_RI) ? SER_RI : 0;
749 sc->sc_msr |= (param & USIE_CTS) ? 0 : SER_CTS;
750 sc->sc_msr |= (param & USIE_RTS) ? SER_RTS : 0;
751 sc->sc_msr |= (param & USIE_DTR) ? SER_DTR : 0;
752 }
753 /* fall though */
754 case USB_ST_SETUP:
755 tr_setup:
756 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
757 usbd_transfer_submit(xfer);
758 break;
759
760 default: /* Error */
761 DPRINTF("USB transfer error, %s\n",
762 usbd_errstr(error));
763
764 if (error != USB_ERR_CANCELLED) {
765 usbd_xfer_set_stall(xfer);
766 goto tr_setup;
767 }
768 break;
769 }
770 }
771
772 static void
usie_if_rx_callback(struct usb_xfer * xfer,usb_error_t error)773 usie_if_rx_callback(struct usb_xfer *xfer, usb_error_t error)
774 {
775 struct usie_softc *sc = usbd_xfer_softc(xfer);
776 struct ifnet *ifp = sc->sc_ifp;
777 struct mbuf *m0;
778 struct mbuf *m = NULL;
779 struct usie_desc *rxd;
780 uint32_t actlen;
781 uint16_t err;
782 uint16_t pkt;
783 uint16_t ipl;
784 uint16_t len;
785 uint16_t diff;
786 uint8_t pad;
787 uint8_t ipv;
788
789 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
790
791 switch (USB_GET_STATE(xfer)) {
792 case USB_ST_TRANSFERRED:
793 DPRINTFN(15, "rx done, actlen=%u\n", actlen);
794
795 if (actlen < sizeof(struct usie_hip)) {
796 DPRINTF("data too short %u\n", actlen);
797 goto tr_setup;
798 }
799 m = sc->sc_rxm;
800 sc->sc_rxm = NULL;
801
802 /* fall though */
803 case USB_ST_SETUP:
804 tr_setup:
805
806 if (sc->sc_rxm == NULL) {
807 sc->sc_rxm = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
808 MJUMPAGESIZE /* could be bigger than MCLBYTES */ );
809 }
810 if (sc->sc_rxm == NULL) {
811 DPRINTF("could not allocate Rx mbuf\n");
812 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
813 usbd_xfer_set_stall(xfer);
814 usbd_xfer_set_frames(xfer, 0);
815 } else {
816 /*
817 * Directly loading a mbuf cluster into DMA to
818 * save some data copying. This works because
819 * there is only one cluster.
820 */
821 usbd_xfer_set_frame_data(xfer, 0,
822 mtod(sc->sc_rxm, caddr_t), MIN(MJUMPAGESIZE, USIE_RXSZ_MAX));
823 usbd_xfer_set_frames(xfer, 1);
824 }
825 usbd_transfer_submit(xfer);
826 break;
827
828 default: /* Error */
829 DPRINTF("USB transfer error, %s\n", usbd_errstr(error));
830
831 if (error != USB_ERR_CANCELLED) {
832 /* try to clear stall first */
833 usbd_xfer_set_stall(xfer);
834 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
835 goto tr_setup;
836 }
837 if (sc->sc_rxm != NULL) {
838 m_freem(sc->sc_rxm);
839 sc->sc_rxm = NULL;
840 }
841 break;
842 }
843
844 if (m == NULL)
845 return;
846
847 mtx_unlock(&sc->sc_mtx);
848
849 m->m_pkthdr.len = m->m_len = actlen;
850
851 err = pkt = 0;
852
853 /* HW can aggregate multiple frames in a single USB xfer */
854 for (;;) {
855 rxd = mtod(m, struct usie_desc *);
856
857 len = be16toh(rxd->hip.len) & USIE_HIP_IP_LEN_MASK;
858 pad = (rxd->hip.id & USIE_HIP_PAD) ? 1 : 0;
859 ipl = (len - pad - ETHER_HDR_LEN);
860 if (ipl >= len) {
861 DPRINTF("Corrupt frame\n");
862 m_freem(m);
863 break;
864 }
865 diff = sizeof(struct usie_desc) + ipl + pad;
866
867 if (((rxd->hip.id & USIE_HIP_MASK) != USIE_HIP_IP) ||
868 (be16toh(rxd->desc_type) & USIE_TYPE_MASK) != USIE_IP_RX) {
869 DPRINTF("received wrong type of packet\n");
870 m->m_data += diff;
871 m->m_pkthdr.len = (m->m_len -= diff);
872 err++;
873 if (m->m_pkthdr.len > 0)
874 continue;
875 m_freem(m);
876 break;
877 }
878 switch (be16toh(rxd->ethhdr.ether_type)) {
879 case ETHERTYPE_IP:
880 ipv = NETISR_IP;
881 break;
882 #ifdef INET6
883 case ETHERTYPE_IPV6:
884 ipv = NETISR_IPV6;
885 break;
886 #endif
887 default:
888 DPRINTF("unsupported ether type\n");
889 err++;
890 break;
891 }
892
893 /* the last packet */
894 if (m->m_pkthdr.len <= diff) {
895 m->m_data += (sizeof(struct usie_desc) + pad);
896 m->m_pkthdr.len = m->m_len = ipl;
897 m->m_pkthdr.rcvif = ifp;
898 BPF_MTAP(sc->sc_ifp, m);
899 netisr_dispatch(ipv, m);
900 break;
901 }
902 /* copy aggregated frames to another mbuf */
903 m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
904 if (__predict_false(m0 == NULL)) {
905 DPRINTF("could not allocate mbuf\n");
906 err++;
907 m_freem(m);
908 break;
909 }
910 m_copydata(m, sizeof(struct usie_desc) + pad, ipl, mtod(m0, caddr_t));
911 m0->m_pkthdr.rcvif = ifp;
912 m0->m_pkthdr.len = m0->m_len = ipl;
913
914 BPF_MTAP(sc->sc_ifp, m0);
915 netisr_dispatch(ipv, m0);
916
917 m->m_data += diff;
918 m->m_pkthdr.len = (m->m_len -= diff);
919 }
920
921 mtx_lock(&sc->sc_mtx);
922
923 if_inc_counter(ifp, IFCOUNTER_IERRORS, err);
924 if_inc_counter(ifp, IFCOUNTER_IPACKETS, pkt);
925 }
926
927 static void
usie_if_tx_callback(struct usb_xfer * xfer,usb_error_t error)928 usie_if_tx_callback(struct usb_xfer *xfer, usb_error_t error)
929 {
930 struct usie_softc *sc = usbd_xfer_softc(xfer);
931 struct usb_page_cache *pc;
932 struct ifnet *ifp = sc->sc_ifp;
933 struct mbuf *m;
934 uint16_t size;
935
936 switch (USB_GET_STATE(xfer)) {
937 case USB_ST_TRANSFERRED:
938 DPRINTFN(11, "transfer complete\n");
939 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
940 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
941
942 /* fall though */
943 case USB_ST_SETUP:
944 tr_setup:
945
946 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
947 break;
948
949 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
950 if (m == NULL)
951 break;
952
953 if (m->m_pkthdr.len > (int)(MCLBYTES - ETHER_HDR_LEN +
954 ETHER_CRC_LEN - sizeof(sc->sc_txd))) {
955 DPRINTF("packet len is too big: %d\n",
956 m->m_pkthdr.len);
957 break;
958 }
959 pc = usbd_xfer_get_frame(xfer, 0);
960
961 sc->sc_txd.hip.len = htobe16(m->m_pkthdr.len +
962 ETHER_HDR_LEN + ETHER_CRC_LEN);
963 size = sizeof(sc->sc_txd);
964
965 usbd_copy_in(pc, 0, &sc->sc_txd, size);
966 usbd_m_copy_in(pc, size, m, 0, m->m_pkthdr.len);
967 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len +
968 size + ETHER_CRC_LEN);
969
970 BPF_MTAP(ifp, m);
971
972 m_freem(m);
973
974 usbd_transfer_submit(xfer);
975 break;
976
977 default: /* Error */
978 DPRINTF("USB transfer error, %s\n",
979 usbd_errstr(error));
980 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
981
982 if (error != USB_ERR_CANCELLED) {
983 usbd_xfer_set_stall(xfer);
984 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
985 goto tr_setup;
986 }
987 break;
988 }
989 }
990
991 static void
usie_if_status_callback(struct usb_xfer * xfer,usb_error_t error)992 usie_if_status_callback(struct usb_xfer *xfer, usb_error_t error)
993 {
994 struct usie_softc *sc = usbd_xfer_softc(xfer);
995 struct usb_page_cache *pc;
996 struct usb_cdc_notification cdc;
997 uint32_t actlen;
998
999 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1000
1001 switch (USB_GET_STATE(xfer)) {
1002 case USB_ST_TRANSFERRED:
1003 DPRINTFN(4, "info received, actlen=%d\n", actlen);
1004
1005 /* usb_cdc_notification - .data[16] */
1006 if (actlen < (sizeof(cdc) - 16)) {
1007 DPRINTF("data too short %d\n", actlen);
1008 goto tr_setup;
1009 }
1010 pc = usbd_xfer_get_frame(xfer, 0);
1011 usbd_copy_out(pc, 0, &cdc, (sizeof(cdc) - 16));
1012
1013 DPRINTFN(4, "bNotification=%x\n", cdc.bNotification);
1014
1015 if (cdc.bNotification & UCDC_N_RESPONSE_AVAILABLE) {
1016 taskqueue_enqueue(taskqueue_thread,
1017 &sc->sc_if_status_task);
1018 }
1019 /* fall though */
1020 case USB_ST_SETUP:
1021 tr_setup:
1022 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1023 usbd_transfer_submit(xfer);
1024 break;
1025
1026 default: /* Error */
1027 DPRINTF("USB transfer error, %s\n",
1028 usbd_errstr(error));
1029
1030 if (error != USB_ERR_CANCELLED) {
1031 usbd_xfer_set_stall(xfer);
1032 goto tr_setup;
1033 }
1034 break;
1035 }
1036 }
1037
1038 static void
usie_if_sync_to(void * arg)1039 usie_if_sync_to(void *arg)
1040 {
1041 struct usie_softc *sc = arg;
1042
1043 taskqueue_enqueue(taskqueue_thread, &sc->sc_if_sync_task);
1044 }
1045
1046 static void
usie_if_sync_cb(void * arg,int pending)1047 usie_if_sync_cb(void *arg, int pending)
1048 {
1049 struct usie_softc *sc = arg;
1050
1051 mtx_lock(&sc->sc_mtx);
1052
1053 /* call twice */
1054 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1055 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1056
1057 usb_callout_reset(&sc->sc_if_sync_ch, 2 * hz, usie_if_sync_to, sc);
1058
1059 mtx_unlock(&sc->sc_mtx);
1060 }
1061
1062 static void
usie_if_status_cb(void * arg,int pending)1063 usie_if_status_cb(void *arg, int pending)
1064 {
1065 struct usie_softc *sc = arg;
1066 struct ifnet *ifp = sc->sc_ifp;
1067 struct usb_device_request req;
1068 struct usie_hip *hip;
1069 struct usie_lsi *lsi;
1070 uint16_t actlen;
1071 uint8_t ntries;
1072 uint8_t pad;
1073
1074 mtx_lock(&sc->sc_mtx);
1075
1076 req.bmRequestType = UT_READ_CLASS_INTERFACE;
1077 req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
1078 USETW(req.wValue, 0);
1079 USETW(req.wIndex, sc->sc_if_ifnum);
1080 USETW(req.wLength, sizeof(sc->sc_status_temp));
1081
1082 for (ntries = 0; ntries != 10; ntries++) {
1083 int err;
1084
1085 err = usbd_do_request_flags(sc->sc_udev,
1086 &sc->sc_mtx, &req, sc->sc_status_temp, USB_SHORT_XFER_OK,
1087 &actlen, USB_DEFAULT_TIMEOUT);
1088
1089 if (err == 0)
1090 break;
1091
1092 DPRINTF("Control request failed: %s %d/10\n",
1093 usbd_errstr(err), ntries);
1094
1095 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
1096 }
1097
1098 if (ntries == 10) {
1099 mtx_unlock(&sc->sc_mtx);
1100 DPRINTF("Timeout\n");
1101 return;
1102 }
1103
1104 hip = (struct usie_hip *)sc->sc_status_temp;
1105
1106 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0;
1107
1108 DPRINTF("hip.id=%x hip.len=%d actlen=%u pad=%d\n",
1109 hip->id, be16toh(hip->len), actlen, pad);
1110
1111 switch (hip->id & USIE_HIP_MASK) {
1112 case USIE_HIP_SYNC2H:
1113 usie_if_cmd(sc, USIE_HIP_SYNC2M);
1114 break;
1115 case USIE_HIP_RESTR:
1116 usb_callout_stop(&sc->sc_if_sync_ch);
1117 break;
1118 case USIE_HIP_UMTS:
1119 lsi = (struct usie_lsi *)(
1120 sc->sc_status_temp + sizeof(struct usie_hip) + pad);
1121
1122 DPRINTF("lsi.proto=%x lsi.len=%d\n", lsi->proto,
1123 be16toh(lsi->len));
1124
1125 if (lsi->proto != USIE_LSI_UMTS)
1126 break;
1127
1128 if (lsi->area == USIE_LSI_AREA_NO ||
1129 lsi->area == USIE_LSI_AREA_NODATA) {
1130 device_printf(sc->sc_dev, "no service available\n");
1131 break;
1132 }
1133 if (lsi->state == USIE_LSI_STATE_IDLE) {
1134 DPRINTF("lsi.state=%x\n", lsi->state);
1135 break;
1136 }
1137 DPRINTF("ctx=%x\n", hip->param);
1138 sc->sc_txd.hip.param = hip->param;
1139
1140 sc->sc_net.addr_len = lsi->pdp_addr_len;
1141 memcpy(&sc->sc_net.dns1_addr, &lsi->dns1_addr, 16);
1142 memcpy(&sc->sc_net.dns2_addr, &lsi->dns2_addr, 16);
1143 memcpy(sc->sc_net.pdp_addr, lsi->pdp_addr, 16);
1144 memcpy(sc->sc_net.gw_addr, lsi->gw_addr, 16);
1145 ifp->if_flags |= IFF_UP;
1146 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1147
1148 device_printf(sc->sc_dev, "IP Addr=%d.%d.%d.%d\n",
1149 *lsi->pdp_addr, *(lsi->pdp_addr + 1),
1150 *(lsi->pdp_addr + 2), *(lsi->pdp_addr + 3));
1151 device_printf(sc->sc_dev, "Gateway Addr=%d.%d.%d.%d\n",
1152 *lsi->gw_addr, *(lsi->gw_addr + 1),
1153 *(lsi->gw_addr + 2), *(lsi->gw_addr + 3));
1154 device_printf(sc->sc_dev, "Prim NS Addr=%d.%d.%d.%d\n",
1155 *lsi->dns1_addr, *(lsi->dns1_addr + 1),
1156 *(lsi->dns1_addr + 2), *(lsi->dns1_addr + 3));
1157 device_printf(sc->sc_dev, "Scnd NS Addr=%d.%d.%d.%d\n",
1158 *lsi->dns2_addr, *(lsi->dns2_addr + 1),
1159 *(lsi->dns2_addr + 2), *(lsi->dns2_addr + 3));
1160
1161 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI);
1162 break;
1163
1164 case USIE_HIP_RCGI:
1165 /* ignore, workaround for sloppy windows */
1166 break;
1167 default:
1168 DPRINTF("undefined msgid: %x\n", hip->id);
1169 break;
1170 }
1171
1172 mtx_unlock(&sc->sc_mtx);
1173 }
1174
1175 static void
usie_if_start(struct ifnet * ifp)1176 usie_if_start(struct ifnet *ifp)
1177 {
1178 struct usie_softc *sc = ifp->if_softc;
1179
1180 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1181 DPRINTF("Not running\n");
1182 return;
1183 }
1184 mtx_lock(&sc->sc_mtx);
1185 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_TX]);
1186 mtx_unlock(&sc->sc_mtx);
1187
1188 DPRINTFN(3, "interface started\n");
1189 }
1190
1191 static int
usie_if_output(struct ifnet * ifp,struct mbuf * m,const struct sockaddr * dst,struct route * ro)1192 usie_if_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
1193 struct route *ro)
1194 {
1195 int err;
1196
1197 DPRINTF("proto=%x\n", dst->sa_family);
1198
1199 switch (dst->sa_family) {
1200 #ifdef INET6
1201 case AF_INET6;
1202 /* fall though */
1203 #endif
1204 case AF_INET:
1205 break;
1206
1207 /* silently drop dhclient packets */
1208 case AF_UNSPEC:
1209 m_freem(m);
1210 return (0);
1211
1212 /* drop other packet types */
1213 default:
1214 m_freem(m);
1215 return (EAFNOSUPPORT);
1216 }
1217
1218 err = (ifp->if_transmit)(ifp, m);
1219 if (err) {
1220 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1221 return (ENOBUFS);
1222 }
1223 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1224
1225 return (0);
1226 }
1227
1228 static void
usie_if_init(void * arg)1229 usie_if_init(void *arg)
1230 {
1231 struct usie_softc *sc = arg;
1232 struct ifnet *ifp = sc->sc_ifp;
1233 uint8_t i;
1234
1235 mtx_lock(&sc->sc_mtx);
1236
1237 /* write tx descriptor */
1238 sc->sc_txd.hip.id = USIE_HIP_CTX;
1239 sc->sc_txd.hip.param = 0; /* init value */
1240 sc->sc_txd.desc_type = htobe16(USIE_IP_TX);
1241
1242 for (i = 0; i != USIE_IF_N_XFER; i++)
1243 usbd_xfer_set_stall(sc->sc_if_xfer[i]);
1244
1245 usbd_transfer_start(sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_RX]);
1246 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_STATUS]);
1247 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_RX]);
1248
1249 /* if not running, initiate the modem */
1250 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1251 usie_cns_req(sc, USIE_CNS_ID_INIT, USIE_CNS_OB_LINK_UPDATE);
1252
1253 mtx_unlock(&sc->sc_mtx);
1254
1255 DPRINTF("ifnet initialized\n");
1256 }
1257
1258 static void
usie_if_stop(struct usie_softc * sc)1259 usie_if_stop(struct usie_softc *sc)
1260 {
1261 usb_callout_drain(&sc->sc_if_sync_ch);
1262
1263 mtx_lock(&sc->sc_mtx);
1264
1265 /* usie_cns_req() clears IFF_* flags */
1266 usie_cns_req(sc, USIE_CNS_ID_STOP, USIE_CNS_OB_LINK_UPDATE);
1267
1268 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_TX]);
1269 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_RX]);
1270 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_STATUS]);
1271
1272 /* shutdown device */
1273 usie_if_cmd(sc, USIE_HIP_DOWN);
1274
1275 mtx_unlock(&sc->sc_mtx);
1276 }
1277
1278 static int
usie_if_ioctl(struct ifnet * ifp,u_long cmd,caddr_t data)1279 usie_if_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1280 {
1281 struct usie_softc *sc = ifp->if_softc;
1282 struct ieee80211req *ireq;
1283 struct ieee80211req_sta_info si;
1284 struct ifmediareq *ifmr;
1285
1286 switch (cmd) {
1287 case SIOCSIFFLAGS:
1288 if (ifp->if_flags & IFF_UP) {
1289 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1290 usie_if_init(sc);
1291 } else {
1292 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1293 usie_if_stop(sc);
1294 }
1295 break;
1296
1297 case SIOCSIFCAP:
1298 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1299 device_printf(sc->sc_dev,
1300 "Connect to the network first.\n");
1301 break;
1302 }
1303 mtx_lock(&sc->sc_mtx);
1304 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI);
1305 mtx_unlock(&sc->sc_mtx);
1306 break;
1307
1308 case SIOCG80211:
1309 ireq = (struct ieee80211req *)data;
1310
1311 if (ireq->i_type != IEEE80211_IOC_STA_INFO)
1312 break;
1313
1314 memset(&si, 0, sizeof(si));
1315 si.isi_len = sizeof(si);
1316 /*
1317 * ifconfig expects RSSI in 0.5dBm units
1318 * relative to the noise floor.
1319 */
1320 si.isi_rssi = 2 * sc->sc_rssi;
1321 if (copyout(&si, (uint8_t *)ireq->i_data + 8,
1322 sizeof(struct ieee80211req_sta_info)))
1323 DPRINTF("copyout failed\n");
1324 DPRINTF("80211\n");
1325 break;
1326
1327 case SIOCGIFMEDIA: /* to fool ifconfig */
1328 ifmr = (struct ifmediareq *)data;
1329 ifmr->ifm_count = 1;
1330 DPRINTF("media\n");
1331 break;
1332
1333 case SIOCSIFADDR:
1334 break;
1335
1336 default:
1337 return (EINVAL);
1338 }
1339 return (0);
1340 }
1341
1342 static int
usie_do_request(struct usie_softc * sc,struct usb_device_request * req,void * data)1343 usie_do_request(struct usie_softc *sc, struct usb_device_request *req,
1344 void *data)
1345 {
1346 int err = 0;
1347 int ntries;
1348
1349 mtx_assert(&sc->sc_mtx, MA_OWNED);
1350
1351 for (ntries = 0; ntries != 10; ntries++) {
1352 err = usbd_do_request(sc->sc_udev,
1353 &sc->sc_mtx, req, data);
1354 if (err == 0)
1355 break;
1356
1357 DPRINTF("Control request failed: %s %d/10\n",
1358 usbd_errstr(err), ntries);
1359
1360 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
1361 }
1362 return (err);
1363 }
1364
1365 static int
usie_if_cmd(struct usie_softc * sc,uint8_t cmd)1366 usie_if_cmd(struct usie_softc *sc, uint8_t cmd)
1367 {
1368 struct usb_device_request req;
1369 struct usie_hip msg;
1370
1371 msg.len = 0;
1372 msg.id = cmd;
1373 msg.param = 0;
1374
1375 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
1376 req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
1377 USETW(req.wValue, 0);
1378 USETW(req.wIndex, sc->sc_if_ifnum);
1379 USETW(req.wLength, sizeof(msg));
1380
1381 DPRINTF("cmd=%x\n", cmd);
1382
1383 return (usie_do_request(sc, &req, &msg));
1384 }
1385
1386 static void
usie_cns_req(struct usie_softc * sc,uint32_t id,uint16_t obj)1387 usie_cns_req(struct usie_softc *sc, uint32_t id, uint16_t obj)
1388 {
1389 struct ifnet *ifp = sc->sc_ifp;
1390 struct mbuf *m;
1391 struct usb_xfer *xfer;
1392 struct usie_hip *hip;
1393 struct usie_cns *cns;
1394 uint8_t *param;
1395 uint8_t *tmp;
1396 uint8_t cns_len;
1397
1398 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1399 if (__predict_false(m == NULL)) {
1400 DPRINTF("could not allocate mbuf\n");
1401 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1402 return;
1403 }
1404 /* to align usie_hip{} on 32 bit */
1405 m->m_data += 3;
1406 param = mtod(m, uint8_t *);
1407 *param++ = USIE_HIP_FRM_CHR;
1408 hip = (struct usie_hip *)param;
1409 cns = (struct usie_cns *)(hip + 1);
1410
1411 tmp = param + USIE_HIPCNS_MIN - 2;
1412
1413 switch (obj) {
1414 case USIE_CNS_OB_LINK_UPDATE:
1415 cns_len = 2;
1416 cns->op = USIE_CNS_OP_SET;
1417 *tmp++ = 1; /* profile ID, always use 1 for now */
1418 *tmp++ = id == USIE_CNS_ID_INIT ? 1 : 0;
1419 break;
1420
1421 case USIE_CNS_OB_PROF_WRITE:
1422 cns_len = 245;
1423 cns->op = USIE_CNS_OP_SET;
1424 *tmp++ = 1; /* profile ID, always use 1 for now */
1425 *tmp++ = 2;
1426 memcpy(tmp, &sc->sc_net, 34);
1427 memset(tmp + 35, 0, 245 - 36);
1428 tmp += 243;
1429 break;
1430
1431 case USIE_CNS_OB_RSSI:
1432 cns_len = 0;
1433 cns->op = USIE_CNS_OP_REQ;
1434 break;
1435
1436 default:
1437 DPRINTF("unsupported CnS object type\n");
1438 return;
1439 }
1440 *tmp = USIE_HIP_FRM_CHR;
1441
1442 hip->len = htobe16(sizeof(struct usie_cns) + cns_len);
1443 hip->id = USIE_HIP_CNS2M;
1444 hip->param = 0; /* none for CnS */
1445
1446 cns->obj = htobe16(obj);
1447 cns->id = htobe32(id);
1448 cns->len = cns_len;
1449 cns->rsv0 = cns->rsv1 = 0; /* always '0' */
1450
1451 param = (uint8_t *)(cns + 1);
1452
1453 DPRINTF("param: %16D\n", param, ":");
1454
1455 m->m_pkthdr.len = m->m_len = USIE_HIPCNS_MIN + cns_len + 2;
1456
1457 xfer = sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_TX];
1458
1459 if (usbd_xfer_get_priv(xfer) == NULL) {
1460 usbd_xfer_set_priv(xfer, m);
1461 usbd_transfer_start(xfer);
1462 } else {
1463 DPRINTF("Dropped CNS event\n");
1464 m_freem(m);
1465 }
1466 }
1467
1468 static void
usie_cns_rsp(struct usie_softc * sc,struct usie_cns * cns)1469 usie_cns_rsp(struct usie_softc *sc, struct usie_cns *cns)
1470 {
1471 struct ifnet *ifp = sc->sc_ifp;
1472
1473 DPRINTF("received CnS\n");
1474
1475 switch (be16toh(cns->obj)) {
1476 case USIE_CNS_OB_LINK_UPDATE:
1477 if (be32toh(cns->id) & USIE_CNS_ID_INIT)
1478 usie_if_sync_to(sc);
1479 else if (be32toh(cns->id) & USIE_CNS_ID_STOP) {
1480 ifp->if_flags &= ~IFF_UP;
1481 ifp->if_drv_flags &=
1482 ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
1483 } else
1484 DPRINTF("undefined link update\n");
1485 break;
1486
1487 case USIE_CNS_OB_RSSI:
1488 sc->sc_rssi = be16toh(*(int16_t *)(cns + 1));
1489 if (sc->sc_rssi <= 0)
1490 device_printf(sc->sc_dev, "No signal\n");
1491 else {
1492 device_printf(sc->sc_dev, "RSSI=%ddBm\n",
1493 sc->sc_rssi - 110);
1494 }
1495 break;
1496
1497 case USIE_CNS_OB_PROF_WRITE:
1498 break;
1499
1500 case USIE_CNS_OB_PDP_READ:
1501 break;
1502
1503 default:
1504 DPRINTF("undefined CnS\n");
1505 break;
1506 }
1507 }
1508
1509 static void
usie_hip_rsp(struct usie_softc * sc,uint8_t * rsp,uint32_t len)1510 usie_hip_rsp(struct usie_softc *sc, uint8_t *rsp, uint32_t len)
1511 {
1512 struct usie_hip *hip;
1513 struct usie_cns *cns;
1514 uint32_t i;
1515 uint32_t j;
1516 uint32_t off;
1517 uint8_t tmp[USIE_HIPCNS_MAX] __aligned(4);
1518
1519 for (off = 0; (off + USIE_HIPCNS_MIN) <= len; off++) {
1520
1521 uint8_t pad;
1522
1523 while ((off < len) && (rsp[off] == USIE_HIP_FRM_CHR))
1524 off++;
1525
1526 /* Unstuff the bytes */
1527 for (i = j = 0; ((i + off) < len) &&
1528 (j < USIE_HIPCNS_MAX); i++) {
1529
1530 if (rsp[i + off] == USIE_HIP_FRM_CHR)
1531 break;
1532
1533 if (rsp[i + off] == USIE_HIP_ESC_CHR) {
1534 if ((i + off + 1) >= len)
1535 break;
1536 tmp[j++] = rsp[i++ + off + 1] ^ 0x20;
1537 } else {
1538 tmp[j++] = rsp[i + off];
1539 }
1540 }
1541
1542 off += i;
1543
1544 DPRINTF("frame len=%d\n", j);
1545
1546 if (j < sizeof(struct usie_hip)) {
1547 DPRINTF("too little data\n");
1548 break;
1549 }
1550 /*
1551 * Make sure we are not reading the stack if something
1552 * is wrong.
1553 */
1554 memset(tmp + j, 0, sizeof(tmp) - j);
1555
1556 hip = (struct usie_hip *)tmp;
1557
1558 DPRINTF("hip: len=%d msgID=%02x, param=%02x\n",
1559 be16toh(hip->len), hip->id, hip->param);
1560
1561 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0;
1562
1563 if ((hip->id & USIE_HIP_MASK) == USIE_HIP_CNS2H) {
1564 cns = (struct usie_cns *)(((uint8_t *)(hip + 1)) + pad);
1565
1566 if (j < (sizeof(struct usie_cns) +
1567 sizeof(struct usie_hip) + pad)) {
1568 DPRINTF("too little data\n");
1569 break;
1570 }
1571 DPRINTF("cns: obj=%04x, op=%02x, rsv0=%02x, "
1572 "app=%08x, rsv1=%02x, len=%d\n",
1573 be16toh(cns->obj), cns->op, cns->rsv0,
1574 be32toh(cns->id), cns->rsv1, cns->len);
1575
1576 if (cns->op & USIE_CNS_OP_ERR)
1577 DPRINTF("CnS error response\n");
1578 else
1579 usie_cns_rsp(sc, cns);
1580
1581 i = sizeof(struct usie_hip) + pad + sizeof(struct usie_cns);
1582 j = cns->len;
1583 } else {
1584 i = sizeof(struct usie_hip) + pad;
1585 j = be16toh(hip->len);
1586 }
1587 #ifdef USB_DEBUG
1588 if (usie_debug == 0)
1589 continue;
1590
1591 while (i < USIE_HIPCNS_MAX && j > 0) {
1592 DPRINTF("param[0x%02x] = 0x%02x\n", i, tmp[i]);
1593 i++;
1594 j--;
1595 }
1596 #endif
1597 }
1598 }
1599
1600 static int
usie_driver_loaded(struct module * mod,int what,void * arg)1601 usie_driver_loaded(struct module *mod, int what, void *arg)
1602 {
1603 switch (what) {
1604 case MOD_LOAD:
1605 /* register autoinstall handler */
1606 usie_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
1607 usie_autoinst, NULL, EVENTHANDLER_PRI_ANY);
1608 break;
1609 case MOD_UNLOAD:
1610 EVENTHANDLER_DEREGISTER(usb_dev_configured, usie_etag);
1611 break;
1612 default:
1613 return (EOPNOTSUPP);
1614 }
1615 return (0);
1616 }
1617
1618