1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/eventhandler.h> 35 #include <sys/systm.h> 36 #include <sys/queue.h> 37 #include <sys/systm.h> 38 #include <sys/socket.h> 39 #include <sys/kernel.h> 40 #include <sys/bus.h> 41 #include <sys/module.h> 42 #include <sys/sockio.h> 43 #include <sys/socket.h> 44 #include <sys/lock.h> 45 #include <sys/mutex.h> 46 #include <sys/condvar.h> 47 #include <sys/sysctl.h> 48 #include <sys/malloc.h> 49 #include <sys/taskqueue.h> 50 51 #include <net/if.h> 52 #include <net/if_var.h> 53 54 #include <machine/bus.h> 55 56 #include <net/if.h> 57 #include <net/if_types.h> 58 #include <net/netisr.h> 59 #include <net/bpf.h> 60 #include <net/ethernet.h> 61 62 #include <netinet/in.h> 63 #include <netinet/ip.h> 64 #include <netinet/ip6.h> 65 #include <netinet/udp.h> 66 67 #include <net80211/ieee80211_ioctl.h> 68 69 #include <dev/usb/usb.h> 70 #include <dev/usb/usbdi.h> 71 #include <dev/usb/usbdi_util.h> 72 #include <dev/usb/usb_cdc.h> 73 #include "usbdevs.h" 74 75 #define USB_DEBUG_VAR usie_debug 76 #include <dev/usb/usb_debug.h> 77 #include <dev/usb/usb_process.h> 78 #include <dev/usb/usb_msctest.h> 79 80 #include <dev/usb/serial/usb_serial.h> 81 82 #include <dev/usb/net/if_usievar.h> 83 84 #ifdef USB_DEBUG 85 static int usie_debug = 0; 86 87 static SYSCTL_NODE(_hw_usb, OID_AUTO, usie, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 88 "sierra USB modem"); 89 SYSCTL_INT(_hw_usb_usie, OID_AUTO, debug, CTLFLAG_RWTUN, &usie_debug, 0, 90 "usie debug level"); 91 #endif 92 93 /* Sierra Wireless Direct IP modems */ 94 static const STRUCT_USB_HOST_ID usie_devs[] = { 95 #define USIE_DEV(v, d) { \ 96 USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##d) } 97 USIE_DEV(SIERRA, MC8700), 98 USIE_DEV(SIERRA, TRUINSTALL), 99 USIE_DEV(AIRPRIME, USB308), 100 #undef USIE_DEV 101 }; 102 103 static device_probe_t usie_probe; 104 static device_attach_t usie_attach; 105 static device_detach_t usie_detach; 106 static void usie_free_softc(struct usie_softc *); 107 108 static void usie_free(struct ucom_softc *); 109 static void usie_uc_update_line_state(struct ucom_softc *, uint8_t); 110 static void usie_uc_cfg_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 111 static void usie_uc_cfg_set_dtr(struct ucom_softc *, uint8_t); 112 static void usie_uc_cfg_set_rts(struct ucom_softc *, uint8_t); 113 static void usie_uc_cfg_open(struct ucom_softc *); 114 static void usie_uc_cfg_close(struct ucom_softc *); 115 static void usie_uc_start_read(struct ucom_softc *); 116 static void usie_uc_stop_read(struct ucom_softc *); 117 static void usie_uc_start_write(struct ucom_softc *); 118 static void usie_uc_stop_write(struct ucom_softc *); 119 120 static usb_callback_t usie_uc_tx_callback; 121 static usb_callback_t usie_uc_rx_callback; 122 static usb_callback_t usie_uc_status_callback; 123 static usb_callback_t usie_if_tx_callback; 124 static usb_callback_t usie_if_rx_callback; 125 static usb_callback_t usie_if_status_callback; 126 127 static void usie_if_sync_to(void *); 128 static void usie_if_sync_cb(void *, int); 129 static void usie_if_status_cb(void *, int); 130 131 static void usie_if_start(struct ifnet *); 132 static int usie_if_output(struct ifnet *, struct mbuf *, 133 const struct sockaddr *, struct route *); 134 static void usie_if_init(void *); 135 static void usie_if_stop(struct usie_softc *); 136 static int usie_if_ioctl(struct ifnet *, u_long, caddr_t); 137 138 static int usie_do_request(struct usie_softc *, struct usb_device_request *, void *); 139 static int usie_if_cmd(struct usie_softc *, uint8_t); 140 static void usie_cns_req(struct usie_softc *, uint32_t, uint16_t); 141 static void usie_cns_rsp(struct usie_softc *, struct usie_cns *); 142 static void usie_hip_rsp(struct usie_softc *, uint8_t *, uint32_t); 143 static int usie_driver_loaded(struct module *, int, void *); 144 145 static const struct usb_config usie_uc_config[USIE_UC_N_XFER] = { 146 [USIE_UC_STATUS] = { 147 .type = UE_INTERRUPT, 148 .endpoint = UE_ADDR_ANY, 149 .direction = UE_DIR_IN, 150 .bufsize = 0, /* use wMaxPacketSize */ 151 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 152 .callback = &usie_uc_status_callback, 153 }, 154 [USIE_UC_RX] = { 155 .type = UE_BULK, 156 .endpoint = UE_ADDR_ANY, 157 .direction = UE_DIR_IN, 158 .bufsize = USIE_BUFSIZE, 159 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.proxy_buffer = 1,}, 160 .callback = &usie_uc_rx_callback, 161 }, 162 [USIE_UC_TX] = { 163 .type = UE_BULK, 164 .endpoint = UE_ADDR_ANY, 165 .direction = UE_DIR_OUT, 166 .bufsize = USIE_BUFSIZE, 167 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 168 .callback = &usie_uc_tx_callback, 169 } 170 }; 171 172 static const struct usb_config usie_if_config[USIE_IF_N_XFER] = { 173 [USIE_IF_STATUS] = { 174 .type = UE_INTERRUPT, 175 .endpoint = UE_ADDR_ANY, 176 .direction = UE_DIR_IN, 177 .bufsize = 0, /* use wMaxPacketSize */ 178 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 179 .callback = &usie_if_status_callback, 180 }, 181 [USIE_IF_RX] = { 182 .type = UE_BULK, 183 .endpoint = UE_ADDR_ANY, 184 .direction = UE_DIR_IN, 185 .bufsize = USIE_BUFSIZE, 186 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 187 .callback = &usie_if_rx_callback, 188 }, 189 [USIE_IF_TX] = { 190 .type = UE_BULK, 191 .endpoint = UE_ADDR_ANY, 192 .direction = UE_DIR_OUT, 193 .bufsize = MAX(USIE_BUFSIZE, MCLBYTES), 194 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 195 .callback = &usie_if_tx_callback, 196 } 197 }; 198 199 static device_method_t usie_methods[] = { 200 DEVMETHOD(device_probe, usie_probe), 201 DEVMETHOD(device_attach, usie_attach), 202 DEVMETHOD(device_detach, usie_detach), 203 DEVMETHOD_END 204 }; 205 206 static driver_t usie_driver = { 207 .name = "usie", 208 .methods = usie_methods, 209 .size = sizeof(struct usie_softc), 210 }; 211 212 static devclass_t usie_devclass; 213 static eventhandler_tag usie_etag; 214 215 DRIVER_MODULE(usie, uhub, usie_driver, usie_devclass, usie_driver_loaded, 0); 216 MODULE_DEPEND(usie, ucom, 1, 1, 1); 217 MODULE_DEPEND(usie, usb, 1, 1, 1); 218 MODULE_VERSION(usie, 1); 219 USB_PNP_HOST_INFO(usie_devs); 220 221 static const struct ucom_callback usie_uc_callback = { 222 .ucom_cfg_get_status = &usie_uc_cfg_get_status, 223 .ucom_cfg_set_dtr = &usie_uc_cfg_set_dtr, 224 .ucom_cfg_set_rts = &usie_uc_cfg_set_rts, 225 .ucom_cfg_open = &usie_uc_cfg_open, 226 .ucom_cfg_close = &usie_uc_cfg_close, 227 .ucom_start_read = &usie_uc_start_read, 228 .ucom_stop_read = &usie_uc_stop_read, 229 .ucom_start_write = &usie_uc_start_write, 230 .ucom_stop_write = &usie_uc_stop_write, 231 .ucom_free = &usie_free, 232 }; 233 234 static void 235 usie_autoinst(void *arg, struct usb_device *udev, 236 struct usb_attach_arg *uaa) 237 { 238 struct usb_interface *iface; 239 struct usb_interface_descriptor *id; 240 struct usb_device_request req; 241 int err; 242 243 if (uaa->dev_state != UAA_DEV_READY) 244 return; 245 246 iface = usbd_get_iface(udev, 0); 247 if (iface == NULL) 248 return; 249 250 id = iface->idesc; 251 if (id == NULL || id->bInterfaceClass != UICLASS_MASS) 252 return; 253 254 if (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa) != 0) 255 return; /* no device match */ 256 257 if (bootverbose) { 258 DPRINTF("Ejecting %s %s\n", 259 usb_get_manufacturer(udev), 260 usb_get_product(udev)); 261 } 262 req.bmRequestType = UT_VENDOR; 263 req.bRequest = UR_SET_INTERFACE; 264 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); 265 USETW(req.wIndex, UHF_PORT_CONNECTION); 266 USETW(req.wLength, 0); 267 268 /* at this moment there is no mutex */ 269 err = usbd_do_request_flags(udev, NULL, &req, 270 NULL, 0, NULL, 250 /* ms */ ); 271 272 /* success, mark the udev as disappearing */ 273 if (err == 0) 274 uaa->dev_state = UAA_DEV_EJECTING; 275 } 276 277 static int 278 usie_probe(device_t self) 279 { 280 struct usb_attach_arg *uaa = device_get_ivars(self); 281 282 if (uaa->usb_mode != USB_MODE_HOST) 283 return (ENXIO); 284 if (uaa->info.bConfigIndex != USIE_CNFG_INDEX) 285 return (ENXIO); 286 if (uaa->info.bIfaceIndex != USIE_IFACE_INDEX) 287 return (ENXIO); 288 if (uaa->info.bInterfaceClass != UICLASS_VENDOR) 289 return (ENXIO); 290 291 return (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa)); 292 } 293 294 static int 295 usie_attach(device_t self) 296 { 297 struct usie_softc *sc = device_get_softc(self); 298 struct usb_attach_arg *uaa = device_get_ivars(self); 299 struct ifnet *ifp; 300 struct usb_interface *iface; 301 struct usb_interface_descriptor *id; 302 struct usb_device_request req; 303 int err; 304 uint16_t fwattr; 305 uint8_t iface_index; 306 uint8_t ifidx; 307 uint8_t start; 308 309 device_set_usb_desc(self); 310 sc->sc_udev = uaa->device; 311 sc->sc_dev = self; 312 313 mtx_init(&sc->sc_mtx, "usie", MTX_NETWORK_LOCK, MTX_DEF); 314 ucom_ref(&sc->sc_super_ucom); 315 316 TASK_INIT(&sc->sc_if_status_task, 0, usie_if_status_cb, sc); 317 TASK_INIT(&sc->sc_if_sync_task, 0, usie_if_sync_cb, sc); 318 319 usb_callout_init_mtx(&sc->sc_if_sync_ch, &sc->sc_mtx, 0); 320 321 mtx_lock(&sc->sc_mtx); 322 323 /* set power mode to D0 */ 324 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 325 req.bRequest = USIE_POWER; 326 USETW(req.wValue, 0); 327 USETW(req.wIndex, 0); 328 USETW(req.wLength, 0); 329 if (usie_do_request(sc, &req, NULL)) { 330 mtx_unlock(&sc->sc_mtx); 331 goto detach; 332 } 333 /* read fw attr */ 334 fwattr = 0; 335 req.bmRequestType = UT_READ_VENDOR_DEVICE; 336 req.bRequest = USIE_FW_ATTR; 337 USETW(req.wValue, 0); 338 USETW(req.wIndex, 0); 339 USETW(req.wLength, sizeof(fwattr)); 340 if (usie_do_request(sc, &req, &fwattr)) { 341 mtx_unlock(&sc->sc_mtx); 342 goto detach; 343 } 344 mtx_unlock(&sc->sc_mtx); 345 346 /* check DHCP supports */ 347 DPRINTF("fwattr=%x\n", fwattr); 348 if (!(fwattr & USIE_FW_DHCP)) { 349 device_printf(self, "DHCP is not supported. A firmware upgrade might be needed.\n"); 350 } 351 352 /* find available interfaces */ 353 sc->sc_nucom = 0; 354 for (ifidx = 0; ifidx < USIE_IFACE_MAX; ifidx++) { 355 iface = usbd_get_iface(uaa->device, ifidx); 356 if (iface == NULL) 357 break; 358 359 id = usbd_get_interface_descriptor(iface); 360 if ((id == NULL) || (id->bInterfaceClass != UICLASS_VENDOR)) 361 continue; 362 363 /* setup Direct IP transfer */ 364 if (id->bInterfaceNumber >= 7 && id->bNumEndpoints == 3) { 365 sc->sc_if_ifnum = id->bInterfaceNumber; 366 iface_index = ifidx; 367 368 DPRINTF("ifnum=%d, ifidx=%d\n", 369 sc->sc_if_ifnum, ifidx); 370 371 err = usbd_transfer_setup(uaa->device, 372 &iface_index, sc->sc_if_xfer, usie_if_config, 373 USIE_IF_N_XFER, sc, &sc->sc_mtx); 374 375 if (err == 0) 376 continue; 377 378 device_printf(self, 379 "could not allocate USB transfers on " 380 "iface_index=%d, err=%s\n", 381 iface_index, usbd_errstr(err)); 382 goto detach; 383 } 384 385 /* setup ucom */ 386 if (sc->sc_nucom >= USIE_UCOM_MAX) 387 continue; 388 389 usbd_set_parent_iface(uaa->device, ifidx, 390 uaa->info.bIfaceIndex); 391 392 DPRINTF("NumEndpoints=%d bInterfaceNumber=%d\n", 393 id->bNumEndpoints, id->bInterfaceNumber); 394 395 if (id->bNumEndpoints == 2) { 396 sc->sc_uc_xfer[sc->sc_nucom][0] = NULL; 397 start = 1; 398 } else 399 start = 0; 400 401 err = usbd_transfer_setup(uaa->device, &ifidx, 402 sc->sc_uc_xfer[sc->sc_nucom] + start, 403 usie_uc_config + start, USIE_UC_N_XFER - start, 404 &sc->sc_ucom[sc->sc_nucom], &sc->sc_mtx); 405 406 if (err != 0) { 407 DPRINTF("usbd_transfer_setup error=%s\n", usbd_errstr(err)); 408 continue; 409 } 410 411 mtx_lock(&sc->sc_mtx); 412 for (; start < USIE_UC_N_XFER; start++) 413 usbd_xfer_set_stall(sc->sc_uc_xfer[sc->sc_nucom][start]); 414 mtx_unlock(&sc->sc_mtx); 415 416 sc->sc_uc_ifnum[sc->sc_nucom] = id->bInterfaceNumber; 417 418 sc->sc_nucom++; /* found a port */ 419 } 420 421 if (sc->sc_nucom == 0) { 422 device_printf(self, "no comports found\n"); 423 goto detach; 424 } 425 426 err = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom, 427 sc->sc_nucom, sc, &usie_uc_callback, &sc->sc_mtx); 428 429 if (err != 0) { 430 DPRINTF("ucom_attach failed\n"); 431 goto detach; 432 } 433 DPRINTF("Found %d interfaces.\n", sc->sc_nucom); 434 435 /* setup ifnet (Direct IP) */ 436 sc->sc_ifp = ifp = if_alloc(IFT_OTHER); 437 438 if (ifp == NULL) { 439 device_printf(self, "Could not allocate a network interface\n"); 440 goto detach; 441 } 442 if_initname(ifp, "usie", device_get_unit(self)); 443 444 ifp->if_softc = sc; 445 ifp->if_mtu = USIE_MTU_MAX; 446 ifp->if_flags |= IFF_NOARP; 447 ifp->if_init = usie_if_init; 448 ifp->if_ioctl = usie_if_ioctl; 449 ifp->if_start = usie_if_start; 450 ifp->if_output = usie_if_output; 451 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 452 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 453 IFQ_SET_READY(&ifp->if_snd); 454 455 if_attach(ifp); 456 bpfattach(ifp, DLT_RAW, 0); 457 458 if (fwattr & USIE_PM_AUTO) { 459 usbd_set_power_mode(uaa->device, USB_POWER_MODE_SAVE); 460 DPRINTF("enabling automatic suspend and resume\n"); 461 } else { 462 usbd_set_power_mode(uaa->device, USB_POWER_MODE_ON); 463 DPRINTF("USB power is always ON\n"); 464 } 465 466 DPRINTF("device attached\n"); 467 return (0); 468 469 detach: 470 usie_detach(self); 471 return (ENOMEM); 472 } 473 474 static int 475 usie_detach(device_t self) 476 { 477 struct usie_softc *sc = device_get_softc(self); 478 uint8_t x; 479 480 /* detach ifnet */ 481 if (sc->sc_ifp != NULL) { 482 usie_if_stop(sc); 483 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER); 484 bpfdetach(sc->sc_ifp); 485 if_detach(sc->sc_ifp); 486 if_free(sc->sc_ifp); 487 sc->sc_ifp = NULL; 488 } 489 /* detach ucom */ 490 if (sc->sc_nucom > 0) 491 ucom_detach(&sc->sc_super_ucom, sc->sc_ucom); 492 493 /* stop all USB transfers */ 494 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER); 495 496 for (x = 0; x != USIE_UCOM_MAX; x++) 497 usbd_transfer_unsetup(sc->sc_uc_xfer[x], USIE_UC_N_XFER); 498 499 500 device_claim_softc(self); 501 502 usie_free_softc(sc); 503 504 return (0); 505 } 506 507 UCOM_UNLOAD_DRAIN(usie); 508 509 static void 510 usie_free_softc(struct usie_softc *sc) 511 { 512 if (ucom_unref(&sc->sc_super_ucom)) { 513 mtx_destroy(&sc->sc_mtx); 514 device_free_softc(sc); 515 } 516 } 517 518 static void 519 usie_free(struct ucom_softc *ucom) 520 { 521 usie_free_softc(ucom->sc_parent); 522 } 523 524 static void 525 usie_uc_update_line_state(struct ucom_softc *ucom, uint8_t ls) 526 { 527 struct usie_softc *sc = ucom->sc_parent; 528 struct usb_device_request req; 529 530 if (sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS] == NULL) 531 return; 532 533 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 534 req.bRequest = USIE_LINK_STATE; 535 USETW(req.wValue, ls); 536 USETW(req.wIndex, sc->sc_uc_ifnum[ucom->sc_subunit]); 537 USETW(req.wLength, 0); 538 539 DPRINTF("sc_uc_ifnum=%d\n", sc->sc_uc_ifnum[ucom->sc_subunit]); 540 541 usie_do_request(sc, &req, NULL); 542 } 543 544 static void 545 usie_uc_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 546 { 547 struct usie_softc *sc = ucom->sc_parent; 548 549 *msr = sc->sc_msr; 550 *lsr = sc->sc_lsr; 551 } 552 553 static void 554 usie_uc_cfg_set_dtr(struct ucom_softc *ucom, uint8_t flag) 555 { 556 uint8_t dtr; 557 558 dtr = flag ? USIE_LS_DTR : 0; 559 usie_uc_update_line_state(ucom, dtr); 560 } 561 562 static void 563 usie_uc_cfg_set_rts(struct ucom_softc *ucom, uint8_t flag) 564 { 565 uint8_t rts; 566 567 rts = flag ? USIE_LS_RTS : 0; 568 usie_uc_update_line_state(ucom, rts); 569 } 570 571 static void 572 usie_uc_cfg_open(struct ucom_softc *ucom) 573 { 574 struct usie_softc *sc = ucom->sc_parent; 575 576 /* usbd_transfer_start() is NULL safe */ 577 578 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]); 579 } 580 581 static void 582 usie_uc_cfg_close(struct ucom_softc *ucom) 583 { 584 struct usie_softc *sc = ucom->sc_parent; 585 586 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]); 587 } 588 589 static void 590 usie_uc_start_read(struct ucom_softc *ucom) 591 { 592 struct usie_softc *sc = ucom->sc_parent; 593 594 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]); 595 } 596 597 static void 598 usie_uc_stop_read(struct ucom_softc *ucom) 599 { 600 struct usie_softc *sc = ucom->sc_parent; 601 602 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]); 603 } 604 605 static void 606 usie_uc_start_write(struct ucom_softc *ucom) 607 { 608 struct usie_softc *sc = ucom->sc_parent; 609 610 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]); 611 } 612 613 static void 614 usie_uc_stop_write(struct ucom_softc *ucom) 615 { 616 struct usie_softc *sc = ucom->sc_parent; 617 618 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]); 619 } 620 621 static void 622 usie_uc_rx_callback(struct usb_xfer *xfer, usb_error_t error) 623 { 624 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 625 struct usie_softc *sc = ucom->sc_parent; 626 struct usb_page_cache *pc; 627 uint32_t actlen; 628 629 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 630 631 switch (USB_GET_STATE(xfer)) { 632 case USB_ST_TRANSFERRED: 633 pc = usbd_xfer_get_frame(xfer, 0); 634 635 /* handle CnS response */ 636 if (ucom == sc->sc_ucom && actlen >= USIE_HIPCNS_MIN) { 637 638 DPRINTF("transferred=%u\n", actlen); 639 640 /* check if it is really CnS reply */ 641 usbd_copy_out(pc, 0, sc->sc_resp_temp, 1); 642 643 if (sc->sc_resp_temp[0] == USIE_HIP_FRM_CHR) { 644 645 /* verify actlen */ 646 if (actlen > USIE_BUFSIZE) 647 actlen = USIE_BUFSIZE; 648 649 /* get complete message */ 650 usbd_copy_out(pc, 0, sc->sc_resp_temp, actlen); 651 usie_hip_rsp(sc, sc->sc_resp_temp, actlen); 652 653 /* need to fall though */ 654 goto tr_setup; 655 } 656 /* else call ucom_put_data() */ 657 } 658 /* standard ucom transfer */ 659 ucom_put_data(ucom, pc, 0, actlen); 660 661 /* fall though */ 662 case USB_ST_SETUP: 663 tr_setup: 664 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 665 usbd_transfer_submit(xfer); 666 break; 667 668 default: /* Error */ 669 if (error != USB_ERR_CANCELLED) { 670 usbd_xfer_set_stall(xfer); 671 goto tr_setup; 672 } 673 break; 674 } 675 } 676 677 static void 678 usie_uc_tx_callback(struct usb_xfer *xfer, usb_error_t error) 679 { 680 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 681 struct usb_page_cache *pc; 682 uint32_t actlen; 683 684 switch (USB_GET_STATE(xfer)) { 685 case USB_ST_TRANSFERRED: 686 case USB_ST_SETUP: 687 tr_setup: 688 pc = usbd_xfer_get_frame(xfer, 0); 689 690 /* handle CnS request */ 691 struct mbuf *m = usbd_xfer_get_priv(xfer); 692 693 if (m != NULL) { 694 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 695 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 696 usbd_xfer_set_priv(xfer, NULL); 697 usbd_transfer_submit(xfer); 698 m_freem(m); 699 break; 700 } 701 /* standard ucom transfer */ 702 if (ucom_get_data(ucom, pc, 0, USIE_BUFSIZE, &actlen)) { 703 usbd_xfer_set_frame_len(xfer, 0, actlen); 704 usbd_transfer_submit(xfer); 705 } 706 break; 707 708 default: /* Error */ 709 if (error != USB_ERR_CANCELLED) { 710 usbd_xfer_set_stall(xfer); 711 goto tr_setup; 712 } 713 break; 714 } 715 } 716 717 static void 718 usie_uc_status_callback(struct usb_xfer *xfer, usb_error_t error) 719 { 720 struct usb_page_cache *pc; 721 struct { 722 struct usb_device_request req; 723 uint16_t param; 724 } st; 725 uint32_t actlen; 726 uint16_t param; 727 728 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 729 730 switch (USB_GET_STATE(xfer)) { 731 case USB_ST_TRANSFERRED: 732 DPRINTFN(4, "info received, actlen=%u\n", actlen); 733 734 if (actlen < sizeof(st)) { 735 DPRINTF("data too short actlen=%u\n", actlen); 736 goto tr_setup; 737 } 738 pc = usbd_xfer_get_frame(xfer, 0); 739 usbd_copy_out(pc, 0, &st, sizeof(st)); 740 741 if (st.req.bmRequestType == 0xa1 && st.req.bRequest == 0x20) { 742 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 743 struct usie_softc *sc = ucom->sc_parent; 744 745 param = le16toh(st.param); 746 DPRINTF("param=%x\n", param); 747 sc->sc_msr = sc->sc_lsr = 0; 748 sc->sc_msr |= (param & USIE_DCD) ? SER_DCD : 0; 749 sc->sc_msr |= (param & USIE_DSR) ? SER_DSR : 0; 750 sc->sc_msr |= (param & USIE_RI) ? SER_RI : 0; 751 sc->sc_msr |= (param & USIE_CTS) ? 0 : SER_CTS; 752 sc->sc_msr |= (param & USIE_RTS) ? SER_RTS : 0; 753 sc->sc_msr |= (param & USIE_DTR) ? SER_DTR : 0; 754 } 755 /* fall though */ 756 case USB_ST_SETUP: 757 tr_setup: 758 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 759 usbd_transfer_submit(xfer); 760 break; 761 762 default: /* Error */ 763 DPRINTF("USB transfer error, %s\n", 764 usbd_errstr(error)); 765 766 if (error != USB_ERR_CANCELLED) { 767 usbd_xfer_set_stall(xfer); 768 goto tr_setup; 769 } 770 break; 771 } 772 } 773 774 static void 775 usie_if_rx_callback(struct usb_xfer *xfer, usb_error_t error) 776 { 777 struct epoch_tracker et; 778 struct usie_softc *sc = usbd_xfer_softc(xfer); 779 struct ifnet *ifp = sc->sc_ifp; 780 struct mbuf *m0; 781 struct mbuf *m = NULL; 782 struct usie_desc *rxd; 783 uint32_t actlen; 784 uint16_t err; 785 uint16_t pkt; 786 uint16_t ipl; 787 uint16_t len; 788 uint16_t diff; 789 uint8_t pad; 790 uint8_t ipv; 791 792 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 793 794 switch (USB_GET_STATE(xfer)) { 795 case USB_ST_TRANSFERRED: 796 DPRINTFN(15, "rx done, actlen=%u\n", actlen); 797 798 if (actlen < sizeof(struct usie_hip)) { 799 DPRINTF("data too short %u\n", actlen); 800 goto tr_setup; 801 } 802 m = sc->sc_rxm; 803 sc->sc_rxm = NULL; 804 805 /* fall though */ 806 case USB_ST_SETUP: 807 tr_setup: 808 809 if (sc->sc_rxm == NULL) { 810 sc->sc_rxm = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, 811 MJUMPAGESIZE /* could be bigger than MCLBYTES */ ); 812 } 813 if (sc->sc_rxm == NULL) { 814 DPRINTF("could not allocate Rx mbuf\n"); 815 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 816 usbd_xfer_set_stall(xfer); 817 usbd_xfer_set_frames(xfer, 0); 818 } else { 819 /* 820 * Directly loading a mbuf cluster into DMA to 821 * save some data copying. This works because 822 * there is only one cluster. 823 */ 824 usbd_xfer_set_frame_data(xfer, 0, 825 mtod(sc->sc_rxm, caddr_t), MIN(MJUMPAGESIZE, USIE_RXSZ_MAX)); 826 usbd_xfer_set_frames(xfer, 1); 827 } 828 usbd_transfer_submit(xfer); 829 break; 830 831 default: /* Error */ 832 DPRINTF("USB transfer error, %s\n", usbd_errstr(error)); 833 834 if (error != USB_ERR_CANCELLED) { 835 /* try to clear stall first */ 836 usbd_xfer_set_stall(xfer); 837 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 838 goto tr_setup; 839 } 840 if (sc->sc_rxm != NULL) { 841 m_freem(sc->sc_rxm); 842 sc->sc_rxm = NULL; 843 } 844 break; 845 } 846 847 if (m == NULL) 848 return; 849 850 mtx_unlock(&sc->sc_mtx); 851 852 m->m_pkthdr.len = m->m_len = actlen; 853 854 err = pkt = 0; 855 856 /* HW can aggregate multiple frames in a single USB xfer */ 857 NET_EPOCH_ENTER(et); 858 for (;;) { 859 rxd = mtod(m, struct usie_desc *); 860 861 len = be16toh(rxd->hip.len) & USIE_HIP_IP_LEN_MASK; 862 pad = (rxd->hip.id & USIE_HIP_PAD) ? 1 : 0; 863 ipl = (len - pad - ETHER_HDR_LEN); 864 if (ipl >= len) { 865 DPRINTF("Corrupt frame\n"); 866 m_freem(m); 867 break; 868 } 869 diff = sizeof(struct usie_desc) + ipl + pad; 870 871 if (((rxd->hip.id & USIE_HIP_MASK) != USIE_HIP_IP) || 872 (be16toh(rxd->desc_type) & USIE_TYPE_MASK) != USIE_IP_RX) { 873 DPRINTF("received wrong type of packet\n"); 874 m->m_data += diff; 875 m->m_pkthdr.len = (m->m_len -= diff); 876 err++; 877 if (m->m_pkthdr.len > 0) 878 continue; 879 m_freem(m); 880 break; 881 } 882 switch (be16toh(rxd->ethhdr.ether_type)) { 883 case ETHERTYPE_IP: 884 ipv = NETISR_IP; 885 break; 886 #ifdef INET6 887 case ETHERTYPE_IPV6: 888 ipv = NETISR_IPV6; 889 break; 890 #endif 891 default: 892 DPRINTF("unsupported ether type\n"); 893 err++; 894 break; 895 } 896 897 /* the last packet */ 898 if (m->m_pkthdr.len <= diff) { 899 m->m_data += (sizeof(struct usie_desc) + pad); 900 m->m_pkthdr.len = m->m_len = ipl; 901 m->m_pkthdr.rcvif = ifp; 902 BPF_MTAP(sc->sc_ifp, m); 903 netisr_dispatch(ipv, m); 904 break; 905 } 906 /* copy aggregated frames to another mbuf */ 907 m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 908 if (__predict_false(m0 == NULL)) { 909 DPRINTF("could not allocate mbuf\n"); 910 err++; 911 m_freem(m); 912 break; 913 } 914 m_copydata(m, sizeof(struct usie_desc) + pad, ipl, mtod(m0, caddr_t)); 915 m0->m_pkthdr.rcvif = ifp; 916 m0->m_pkthdr.len = m0->m_len = ipl; 917 918 BPF_MTAP(sc->sc_ifp, m0); 919 netisr_dispatch(ipv, m0); 920 921 m->m_data += diff; 922 m->m_pkthdr.len = (m->m_len -= diff); 923 } 924 NET_EPOCH_EXIT(et); 925 926 mtx_lock(&sc->sc_mtx); 927 928 if_inc_counter(ifp, IFCOUNTER_IERRORS, err); 929 if_inc_counter(ifp, IFCOUNTER_IPACKETS, pkt); 930 } 931 932 static void 933 usie_if_tx_callback(struct usb_xfer *xfer, usb_error_t error) 934 { 935 struct usie_softc *sc = usbd_xfer_softc(xfer); 936 struct usb_page_cache *pc; 937 struct ifnet *ifp = sc->sc_ifp; 938 struct mbuf *m; 939 uint16_t size; 940 941 switch (USB_GET_STATE(xfer)) { 942 case USB_ST_TRANSFERRED: 943 DPRINTFN(11, "transfer complete\n"); 944 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 945 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 946 947 /* fall though */ 948 case USB_ST_SETUP: 949 tr_setup: 950 951 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 952 break; 953 954 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 955 if (m == NULL) 956 break; 957 958 if (m->m_pkthdr.len > (int)(MCLBYTES - ETHER_HDR_LEN + 959 ETHER_CRC_LEN - sizeof(sc->sc_txd))) { 960 DPRINTF("packet len is too big: %d\n", 961 m->m_pkthdr.len); 962 break; 963 } 964 pc = usbd_xfer_get_frame(xfer, 0); 965 966 sc->sc_txd.hip.len = htobe16(m->m_pkthdr.len + 967 ETHER_HDR_LEN + ETHER_CRC_LEN); 968 size = sizeof(sc->sc_txd); 969 970 usbd_copy_in(pc, 0, &sc->sc_txd, size); 971 usbd_m_copy_in(pc, size, m, 0, m->m_pkthdr.len); 972 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len + 973 size + ETHER_CRC_LEN); 974 975 BPF_MTAP(ifp, m); 976 977 m_freem(m); 978 979 usbd_transfer_submit(xfer); 980 break; 981 982 default: /* Error */ 983 DPRINTF("USB transfer error, %s\n", 984 usbd_errstr(error)); 985 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 986 987 if (error != USB_ERR_CANCELLED) { 988 usbd_xfer_set_stall(xfer); 989 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 990 goto tr_setup; 991 } 992 break; 993 } 994 } 995 996 static void 997 usie_if_status_callback(struct usb_xfer *xfer, usb_error_t error) 998 { 999 struct usie_softc *sc = usbd_xfer_softc(xfer); 1000 struct usb_page_cache *pc; 1001 struct usb_cdc_notification cdc; 1002 uint32_t actlen; 1003 1004 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1005 1006 switch (USB_GET_STATE(xfer)) { 1007 case USB_ST_TRANSFERRED: 1008 DPRINTFN(4, "info received, actlen=%d\n", actlen); 1009 1010 /* usb_cdc_notification - .data[16] */ 1011 if (actlen < (sizeof(cdc) - 16)) { 1012 DPRINTF("data too short %d\n", actlen); 1013 goto tr_setup; 1014 } 1015 pc = usbd_xfer_get_frame(xfer, 0); 1016 usbd_copy_out(pc, 0, &cdc, (sizeof(cdc) - 16)); 1017 1018 DPRINTFN(4, "bNotification=%x\n", cdc.bNotification); 1019 1020 if (cdc.bNotification & UCDC_N_RESPONSE_AVAILABLE) { 1021 taskqueue_enqueue(taskqueue_thread, 1022 &sc->sc_if_status_task); 1023 } 1024 /* fall though */ 1025 case USB_ST_SETUP: 1026 tr_setup: 1027 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1028 usbd_transfer_submit(xfer); 1029 break; 1030 1031 default: /* Error */ 1032 DPRINTF("USB transfer error, %s\n", 1033 usbd_errstr(error)); 1034 1035 if (error != USB_ERR_CANCELLED) { 1036 usbd_xfer_set_stall(xfer); 1037 goto tr_setup; 1038 } 1039 break; 1040 } 1041 } 1042 1043 static void 1044 usie_if_sync_to(void *arg) 1045 { 1046 struct usie_softc *sc = arg; 1047 1048 taskqueue_enqueue(taskqueue_thread, &sc->sc_if_sync_task); 1049 } 1050 1051 static void 1052 usie_if_sync_cb(void *arg, int pending) 1053 { 1054 struct usie_softc *sc = arg; 1055 1056 mtx_lock(&sc->sc_mtx); 1057 1058 /* call twice */ 1059 usie_if_cmd(sc, USIE_HIP_SYNC2M); 1060 usie_if_cmd(sc, USIE_HIP_SYNC2M); 1061 1062 usb_callout_reset(&sc->sc_if_sync_ch, 2 * hz, usie_if_sync_to, sc); 1063 1064 mtx_unlock(&sc->sc_mtx); 1065 } 1066 1067 static void 1068 usie_if_status_cb(void *arg, int pending) 1069 { 1070 struct usie_softc *sc = arg; 1071 struct ifnet *ifp = sc->sc_ifp; 1072 struct usb_device_request req; 1073 struct usie_hip *hip; 1074 struct usie_lsi *lsi; 1075 uint16_t actlen; 1076 uint8_t ntries; 1077 uint8_t pad; 1078 1079 mtx_lock(&sc->sc_mtx); 1080 1081 req.bmRequestType = UT_READ_CLASS_INTERFACE; 1082 req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE; 1083 USETW(req.wValue, 0); 1084 USETW(req.wIndex, sc->sc_if_ifnum); 1085 USETW(req.wLength, sizeof(sc->sc_status_temp)); 1086 1087 for (ntries = 0; ntries != 10; ntries++) { 1088 int err; 1089 1090 err = usbd_do_request_flags(sc->sc_udev, 1091 &sc->sc_mtx, &req, sc->sc_status_temp, USB_SHORT_XFER_OK, 1092 &actlen, USB_DEFAULT_TIMEOUT); 1093 1094 if (err == 0) 1095 break; 1096 1097 DPRINTF("Control request failed: %s %d/10\n", 1098 usbd_errstr(err), ntries); 1099 1100 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1101 } 1102 1103 if (ntries == 10) { 1104 mtx_unlock(&sc->sc_mtx); 1105 DPRINTF("Timeout\n"); 1106 return; 1107 } 1108 1109 hip = (struct usie_hip *)sc->sc_status_temp; 1110 1111 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0; 1112 1113 DPRINTF("hip.id=%x hip.len=%d actlen=%u pad=%d\n", 1114 hip->id, be16toh(hip->len), actlen, pad); 1115 1116 switch (hip->id & USIE_HIP_MASK) { 1117 case USIE_HIP_SYNC2H: 1118 usie_if_cmd(sc, USIE_HIP_SYNC2M); 1119 break; 1120 case USIE_HIP_RESTR: 1121 usb_callout_stop(&sc->sc_if_sync_ch); 1122 break; 1123 case USIE_HIP_UMTS: 1124 lsi = (struct usie_lsi *)( 1125 sc->sc_status_temp + sizeof(struct usie_hip) + pad); 1126 1127 DPRINTF("lsi.proto=%x lsi.len=%d\n", lsi->proto, 1128 be16toh(lsi->len)); 1129 1130 if (lsi->proto != USIE_LSI_UMTS) 1131 break; 1132 1133 if (lsi->area == USIE_LSI_AREA_NO || 1134 lsi->area == USIE_LSI_AREA_NODATA) { 1135 device_printf(sc->sc_dev, "no service available\n"); 1136 break; 1137 } 1138 if (lsi->state == USIE_LSI_STATE_IDLE) { 1139 DPRINTF("lsi.state=%x\n", lsi->state); 1140 break; 1141 } 1142 DPRINTF("ctx=%x\n", hip->param); 1143 sc->sc_txd.hip.param = hip->param; 1144 1145 sc->sc_net.addr_len = lsi->pdp_addr_len; 1146 memcpy(&sc->sc_net.dns1_addr, &lsi->dns1_addr, 16); 1147 memcpy(&sc->sc_net.dns2_addr, &lsi->dns2_addr, 16); 1148 memcpy(sc->sc_net.pdp_addr, lsi->pdp_addr, 16); 1149 memcpy(sc->sc_net.gw_addr, lsi->gw_addr, 16); 1150 ifp->if_flags |= IFF_UP; 1151 ifp->if_drv_flags |= IFF_DRV_RUNNING; 1152 1153 device_printf(sc->sc_dev, "IP Addr=%d.%d.%d.%d\n", 1154 *lsi->pdp_addr, *(lsi->pdp_addr + 1), 1155 *(lsi->pdp_addr + 2), *(lsi->pdp_addr + 3)); 1156 device_printf(sc->sc_dev, "Gateway Addr=%d.%d.%d.%d\n", 1157 *lsi->gw_addr, *(lsi->gw_addr + 1), 1158 *(lsi->gw_addr + 2), *(lsi->gw_addr + 3)); 1159 device_printf(sc->sc_dev, "Prim NS Addr=%d.%d.%d.%d\n", 1160 *lsi->dns1_addr, *(lsi->dns1_addr + 1), 1161 *(lsi->dns1_addr + 2), *(lsi->dns1_addr + 3)); 1162 device_printf(sc->sc_dev, "Scnd NS Addr=%d.%d.%d.%d\n", 1163 *lsi->dns2_addr, *(lsi->dns2_addr + 1), 1164 *(lsi->dns2_addr + 2), *(lsi->dns2_addr + 3)); 1165 1166 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI); 1167 break; 1168 1169 case USIE_HIP_RCGI: 1170 /* ignore, workaround for sloppy windows */ 1171 break; 1172 default: 1173 DPRINTF("undefined msgid: %x\n", hip->id); 1174 break; 1175 } 1176 1177 mtx_unlock(&sc->sc_mtx); 1178 } 1179 1180 static void 1181 usie_if_start(struct ifnet *ifp) 1182 { 1183 struct usie_softc *sc = ifp->if_softc; 1184 1185 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1186 DPRINTF("Not running\n"); 1187 return; 1188 } 1189 mtx_lock(&sc->sc_mtx); 1190 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_TX]); 1191 mtx_unlock(&sc->sc_mtx); 1192 1193 DPRINTFN(3, "interface started\n"); 1194 } 1195 1196 static int 1197 usie_if_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, 1198 struct route *ro) 1199 { 1200 int err; 1201 1202 DPRINTF("proto=%x\n", dst->sa_family); 1203 1204 switch (dst->sa_family) { 1205 #ifdef INET6 1206 case AF_INET6; 1207 /* fall though */ 1208 #endif 1209 case AF_INET: 1210 break; 1211 1212 /* silently drop dhclient packets */ 1213 case AF_UNSPEC: 1214 m_freem(m); 1215 return (0); 1216 1217 /* drop other packet types */ 1218 default: 1219 m_freem(m); 1220 return (EAFNOSUPPORT); 1221 } 1222 1223 err = (ifp->if_transmit)(ifp, m); 1224 if (err) { 1225 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1226 return (ENOBUFS); 1227 } 1228 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1229 1230 return (0); 1231 } 1232 1233 static void 1234 usie_if_init(void *arg) 1235 { 1236 struct usie_softc *sc = arg; 1237 struct ifnet *ifp = sc->sc_ifp; 1238 uint8_t i; 1239 1240 mtx_lock(&sc->sc_mtx); 1241 1242 /* write tx descriptor */ 1243 sc->sc_txd.hip.id = USIE_HIP_CTX; 1244 sc->sc_txd.hip.param = 0; /* init value */ 1245 sc->sc_txd.desc_type = htobe16(USIE_IP_TX); 1246 1247 for (i = 0; i != USIE_IF_N_XFER; i++) 1248 usbd_xfer_set_stall(sc->sc_if_xfer[i]); 1249 1250 usbd_transfer_start(sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_RX]); 1251 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_STATUS]); 1252 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_RX]); 1253 1254 /* if not running, initiate the modem */ 1255 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 1256 usie_cns_req(sc, USIE_CNS_ID_INIT, USIE_CNS_OB_LINK_UPDATE); 1257 1258 mtx_unlock(&sc->sc_mtx); 1259 1260 DPRINTF("ifnet initialized\n"); 1261 } 1262 1263 static void 1264 usie_if_stop(struct usie_softc *sc) 1265 { 1266 usb_callout_drain(&sc->sc_if_sync_ch); 1267 1268 mtx_lock(&sc->sc_mtx); 1269 1270 /* usie_cns_req() clears IFF_* flags */ 1271 usie_cns_req(sc, USIE_CNS_ID_STOP, USIE_CNS_OB_LINK_UPDATE); 1272 1273 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_TX]); 1274 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_RX]); 1275 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_STATUS]); 1276 1277 /* shutdown device */ 1278 usie_if_cmd(sc, USIE_HIP_DOWN); 1279 1280 mtx_unlock(&sc->sc_mtx); 1281 } 1282 1283 static int 1284 usie_if_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1285 { 1286 struct usie_softc *sc = ifp->if_softc; 1287 struct ieee80211req *ireq; 1288 struct ieee80211req_sta_info si; 1289 struct ifmediareq *ifmr; 1290 1291 switch (cmd) { 1292 case SIOCSIFFLAGS: 1293 if (ifp->if_flags & IFF_UP) { 1294 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 1295 usie_if_init(sc); 1296 } else { 1297 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1298 usie_if_stop(sc); 1299 } 1300 break; 1301 1302 case SIOCSIFCAP: 1303 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1304 device_printf(sc->sc_dev, 1305 "Connect to the network first.\n"); 1306 break; 1307 } 1308 mtx_lock(&sc->sc_mtx); 1309 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI); 1310 mtx_unlock(&sc->sc_mtx); 1311 break; 1312 1313 case SIOCG80211: 1314 ireq = (struct ieee80211req *)data; 1315 1316 if (ireq->i_type != IEEE80211_IOC_STA_INFO) 1317 break; 1318 1319 memset(&si, 0, sizeof(si)); 1320 si.isi_len = sizeof(si); 1321 /* 1322 * ifconfig expects RSSI in 0.5dBm units 1323 * relative to the noise floor. 1324 */ 1325 si.isi_rssi = 2 * sc->sc_rssi; 1326 if (copyout(&si, (uint8_t *)ireq->i_data + 8, 1327 sizeof(struct ieee80211req_sta_info))) 1328 DPRINTF("copyout failed\n"); 1329 DPRINTF("80211\n"); 1330 break; 1331 1332 case SIOCGIFMEDIA: /* to fool ifconfig */ 1333 ifmr = (struct ifmediareq *)data; 1334 ifmr->ifm_count = 1; 1335 DPRINTF("media\n"); 1336 break; 1337 1338 case SIOCSIFADDR: 1339 break; 1340 1341 default: 1342 return (EINVAL); 1343 } 1344 return (0); 1345 } 1346 1347 static int 1348 usie_do_request(struct usie_softc *sc, struct usb_device_request *req, 1349 void *data) 1350 { 1351 int err = 0; 1352 int ntries; 1353 1354 mtx_assert(&sc->sc_mtx, MA_OWNED); 1355 1356 for (ntries = 0; ntries != 10; ntries++) { 1357 err = usbd_do_request(sc->sc_udev, 1358 &sc->sc_mtx, req, data); 1359 if (err == 0) 1360 break; 1361 1362 DPRINTF("Control request failed: %s %d/10\n", 1363 usbd_errstr(err), ntries); 1364 1365 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1366 } 1367 return (err); 1368 } 1369 1370 static int 1371 usie_if_cmd(struct usie_softc *sc, uint8_t cmd) 1372 { 1373 struct usb_device_request req; 1374 struct usie_hip msg; 1375 1376 msg.len = 0; 1377 msg.id = cmd; 1378 msg.param = 0; 1379 1380 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 1381 req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND; 1382 USETW(req.wValue, 0); 1383 USETW(req.wIndex, sc->sc_if_ifnum); 1384 USETW(req.wLength, sizeof(msg)); 1385 1386 DPRINTF("cmd=%x\n", cmd); 1387 1388 return (usie_do_request(sc, &req, &msg)); 1389 } 1390 1391 static void 1392 usie_cns_req(struct usie_softc *sc, uint32_t id, uint16_t obj) 1393 { 1394 struct ifnet *ifp = sc->sc_ifp; 1395 struct mbuf *m; 1396 struct usb_xfer *xfer; 1397 struct usie_hip *hip; 1398 struct usie_cns *cns; 1399 uint8_t *param; 1400 uint8_t *tmp; 1401 uint8_t cns_len; 1402 1403 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1404 if (__predict_false(m == NULL)) { 1405 DPRINTF("could not allocate mbuf\n"); 1406 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1407 return; 1408 } 1409 /* to align usie_hip{} on 32 bit */ 1410 m->m_data += 3; 1411 param = mtod(m, uint8_t *); 1412 *param++ = USIE_HIP_FRM_CHR; 1413 hip = (struct usie_hip *)param; 1414 cns = (struct usie_cns *)(hip + 1); 1415 1416 tmp = param + USIE_HIPCNS_MIN - 2; 1417 1418 switch (obj) { 1419 case USIE_CNS_OB_LINK_UPDATE: 1420 cns_len = 2; 1421 cns->op = USIE_CNS_OP_SET; 1422 *tmp++ = 1; /* profile ID, always use 1 for now */ 1423 *tmp++ = id == USIE_CNS_ID_INIT ? 1 : 0; 1424 break; 1425 1426 case USIE_CNS_OB_PROF_WRITE: 1427 cns_len = 245; 1428 cns->op = USIE_CNS_OP_SET; 1429 *tmp++ = 1; /* profile ID, always use 1 for now */ 1430 *tmp++ = 2; 1431 memcpy(tmp, &sc->sc_net, 34); 1432 memset(tmp + 35, 0, 245 - 36); 1433 tmp += 243; 1434 break; 1435 1436 case USIE_CNS_OB_RSSI: 1437 cns_len = 0; 1438 cns->op = USIE_CNS_OP_REQ; 1439 break; 1440 1441 default: 1442 DPRINTF("unsupported CnS object type\n"); 1443 return; 1444 } 1445 *tmp = USIE_HIP_FRM_CHR; 1446 1447 hip->len = htobe16(sizeof(struct usie_cns) + cns_len); 1448 hip->id = USIE_HIP_CNS2M; 1449 hip->param = 0; /* none for CnS */ 1450 1451 cns->obj = htobe16(obj); 1452 cns->id = htobe32(id); 1453 cns->len = cns_len; 1454 cns->rsv0 = cns->rsv1 = 0; /* always '0' */ 1455 1456 param = (uint8_t *)(cns + 1); 1457 1458 DPRINTF("param: %16D\n", param, ":"); 1459 1460 m->m_pkthdr.len = m->m_len = USIE_HIPCNS_MIN + cns_len + 2; 1461 1462 xfer = sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_TX]; 1463 1464 if (usbd_xfer_get_priv(xfer) == NULL) { 1465 usbd_xfer_set_priv(xfer, m); 1466 usbd_transfer_start(xfer); 1467 } else { 1468 DPRINTF("Dropped CNS event\n"); 1469 m_freem(m); 1470 } 1471 } 1472 1473 static void 1474 usie_cns_rsp(struct usie_softc *sc, struct usie_cns *cns) 1475 { 1476 struct ifnet *ifp = sc->sc_ifp; 1477 1478 DPRINTF("received CnS\n"); 1479 1480 switch (be16toh(cns->obj)) { 1481 case USIE_CNS_OB_LINK_UPDATE: 1482 if (be32toh(cns->id) & USIE_CNS_ID_INIT) 1483 usie_if_sync_to(sc); 1484 else if (be32toh(cns->id) & USIE_CNS_ID_STOP) { 1485 ifp->if_flags &= ~IFF_UP; 1486 ifp->if_drv_flags &= 1487 ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1488 } else 1489 DPRINTF("undefined link update\n"); 1490 break; 1491 1492 case USIE_CNS_OB_RSSI: 1493 sc->sc_rssi = be16toh(*(int16_t *)(cns + 1)); 1494 if (sc->sc_rssi <= 0) 1495 device_printf(sc->sc_dev, "No signal\n"); 1496 else { 1497 device_printf(sc->sc_dev, "RSSI=%ddBm\n", 1498 sc->sc_rssi - 110); 1499 } 1500 break; 1501 1502 case USIE_CNS_OB_PROF_WRITE: 1503 break; 1504 1505 case USIE_CNS_OB_PDP_READ: 1506 break; 1507 1508 default: 1509 DPRINTF("undefined CnS\n"); 1510 break; 1511 } 1512 } 1513 1514 static void 1515 usie_hip_rsp(struct usie_softc *sc, uint8_t *rsp, uint32_t len) 1516 { 1517 struct usie_hip *hip; 1518 struct usie_cns *cns; 1519 uint32_t i; 1520 uint32_t j; 1521 uint32_t off; 1522 uint8_t tmp[USIE_HIPCNS_MAX] __aligned(4); 1523 1524 for (off = 0; (off + USIE_HIPCNS_MIN) <= len; off++) { 1525 1526 uint8_t pad; 1527 1528 while ((off < len) && (rsp[off] == USIE_HIP_FRM_CHR)) 1529 off++; 1530 1531 /* Unstuff the bytes */ 1532 for (i = j = 0; ((i + off) < len) && 1533 (j < USIE_HIPCNS_MAX); i++) { 1534 1535 if (rsp[i + off] == USIE_HIP_FRM_CHR) 1536 break; 1537 1538 if (rsp[i + off] == USIE_HIP_ESC_CHR) { 1539 if ((i + off + 1) >= len) 1540 break; 1541 tmp[j++] = rsp[i++ + off + 1] ^ 0x20; 1542 } else { 1543 tmp[j++] = rsp[i + off]; 1544 } 1545 } 1546 1547 off += i; 1548 1549 DPRINTF("frame len=%d\n", j); 1550 1551 if (j < sizeof(struct usie_hip)) { 1552 DPRINTF("too little data\n"); 1553 break; 1554 } 1555 /* 1556 * Make sure we are not reading the stack if something 1557 * is wrong. 1558 */ 1559 memset(tmp + j, 0, sizeof(tmp) - j); 1560 1561 hip = (struct usie_hip *)tmp; 1562 1563 DPRINTF("hip: len=%d msgID=%02x, param=%02x\n", 1564 be16toh(hip->len), hip->id, hip->param); 1565 1566 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0; 1567 1568 if ((hip->id & USIE_HIP_MASK) == USIE_HIP_CNS2H) { 1569 cns = (struct usie_cns *)(((uint8_t *)(hip + 1)) + pad); 1570 1571 if (j < (sizeof(struct usie_cns) + 1572 sizeof(struct usie_hip) + pad)) { 1573 DPRINTF("too little data\n"); 1574 break; 1575 } 1576 DPRINTF("cns: obj=%04x, op=%02x, rsv0=%02x, " 1577 "app=%08x, rsv1=%02x, len=%d\n", 1578 be16toh(cns->obj), cns->op, cns->rsv0, 1579 be32toh(cns->id), cns->rsv1, cns->len); 1580 1581 if (cns->op & USIE_CNS_OP_ERR) 1582 DPRINTF("CnS error response\n"); 1583 else 1584 usie_cns_rsp(sc, cns); 1585 1586 i = sizeof(struct usie_hip) + pad + sizeof(struct usie_cns); 1587 j = cns->len; 1588 } else { 1589 i = sizeof(struct usie_hip) + pad; 1590 j = be16toh(hip->len); 1591 } 1592 #ifdef USB_DEBUG 1593 if (usie_debug == 0) 1594 continue; 1595 1596 while (i < USIE_HIPCNS_MAX && j > 0) { 1597 DPRINTF("param[0x%02x] = 0x%02x\n", i, tmp[i]); 1598 i++; 1599 j--; 1600 } 1601 #endif 1602 } 1603 } 1604 1605 static int 1606 usie_driver_loaded(struct module *mod, int what, void *arg) 1607 { 1608 switch (what) { 1609 case MOD_LOAD: 1610 /* register autoinstall handler */ 1611 usie_etag = EVENTHANDLER_REGISTER(usb_dev_configured, 1612 usie_autoinst, NULL, EVENTHANDLER_PRI_ANY); 1613 break; 1614 case MOD_UNLOAD: 1615 EVENTHANDLER_DEREGISTER(usb_dev_configured, usie_etag); 1616 break; 1617 default: 1618 return (EOPNOTSUPP); 1619 } 1620 return (0); 1621 } 1622 1623