1 /* $NetBSD: if_athn_usb.c,v 1.12 2016/06/10 13:27:15 ozaki-r Exp $ */ 2 /* $OpenBSD: if_athn_usb.c,v 1.12 2013/01/14 09:50:31 jsing Exp $ */ 3 4 /*- 5 * Copyright (c) 2011 Damien Bergamini <damien.bergamini@free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* 21 * USB front-end for Atheros AR9271 and AR7010 chipsets. 22 */ 23 24 #include <sys/cdefs.h> 25 __KERNEL_RCSID(0, "$NetBSD: if_athn_usb.c,v 1.12 2016/06/10 13:27:15 ozaki-r Exp $"); 26 27 #ifdef _KERNEL_OPT 28 #include "opt_inet.h" 29 #endif 30 31 #include <sys/param.h> 32 #include <sys/callout.h> 33 #include <sys/conf.h> 34 #include <sys/device.h> 35 #include <sys/kernel.h> 36 #include <sys/mbuf.h> 37 #include <sys/module.h> 38 #include <sys/proc.h> 39 #include <sys/socket.h> 40 #include <sys/sockio.h> 41 #include <sys/systm.h> 42 #include <sys/kmem.h> 43 44 #include <sys/bus.h> 45 #include <sys/endian.h> 46 #include <sys/intr.h> 47 48 #include <net/bpf.h> 49 #include <net/if.h> 50 #include <net/if_arp.h> 51 #include <net/if_dl.h> 52 #include <net/if_ether.h> 53 #include <net/if_media.h> 54 #include <net/if_types.h> 55 56 #include <netinet/if_inarp.h> 57 #include <netinet/in.h> 58 #include <netinet/in_systm.h> 59 #include <netinet/in_var.h> 60 #include <netinet/ip.h> 61 62 #include <net80211/ieee80211_var.h> 63 #include <net80211/ieee80211_amrr.h> 64 #include <net80211/ieee80211_radiotap.h> 65 66 #include <dev/firmload.h> 67 68 #include <dev/usb/usb.h> 69 #include <dev/usb/usbdevs.h> 70 #include <dev/usb/usbdi.h> 71 #include <dev/usb/usbdi_util.h> 72 73 #include <dev/ic/athnreg.h> 74 #include <dev/ic/athnvar.h> 75 #include <dev/ic/arn9285.h> 76 #include <dev/usb/if_athn_usb.h> 77 78 #define ATHN_USB_SOFTC(sc) ((struct athn_usb_softc *)(sc)) 79 #define ATHN_USB_NODE(ni) ((struct athn_usb_node *)(ni)) 80 81 #define IS_UP_AND_RUNNING(ifp) \ 82 (((ifp)->if_flags & IFF_UP) && ((ifp)->if_flags & IFF_RUNNING)) 83 84 #define athn_usb_wmi_cmd(sc, cmd_id) \ 85 athn_usb_wmi_xcmd(sc, cmd_id, NULL, 0, NULL) 86 87 Static int athn_usb_activate(device_t, enum devact); 88 Static int athn_usb_detach(device_t, int); 89 Static int athn_usb_match(device_t, cfdata_t, void *); 90 Static void athn_usb_attach(device_t, device_t, void *); 91 92 CFATTACH_DECL_NEW(athn_usb, sizeof(struct athn_usb_softc), athn_usb_match, 93 athn_usb_attach, athn_usb_detach, athn_usb_activate); 94 95 Static int athn_usb_alloc_rx_list(struct athn_usb_softc *); 96 Static int athn_usb_alloc_tx_cmd(struct athn_usb_softc *); 97 Static int athn_usb_alloc_tx_list(struct athn_usb_softc *); 98 Static void athn_usb_attachhook(device_t); 99 Static void athn_usb_bcneof(struct usbd_xfer *, void *, 100 usbd_status); 101 Static void athn_usb_abort_pipes(struct athn_usb_softc *); 102 Static void athn_usb_close_pipes(struct athn_usb_softc *); 103 Static int athn_usb_create_hw_node(struct athn_usb_softc *, 104 struct ar_htc_target_sta *); 105 Static int athn_usb_create_node(struct athn_usb_softc *, 106 struct ieee80211_node *); 107 Static void athn_usb_do_async(struct athn_usb_softc *, 108 void (*)(struct athn_usb_softc *, void *), void *, int); 109 Static void athn_usb_free_rx_list(struct athn_usb_softc *); 110 Static void athn_usb_free_tx_cmd(struct athn_usb_softc *); 111 Static void athn_usb_free_tx_list(struct athn_usb_softc *); 112 Static int athn_usb_htc_connect_svc(struct athn_usb_softc *, uint16_t, 113 uint8_t, uint8_t, uint8_t *); 114 Static int athn_usb_htc_msg(struct athn_usb_softc *, uint16_t, void *, 115 int); 116 Static int athn_usb_htc_setup(struct athn_usb_softc *); 117 Static int athn_usb_init(struct ifnet *); 118 Static void athn_usb_intr(struct usbd_xfer *, void *, 119 usbd_status); 120 Static int athn_usb_ioctl(struct ifnet *, u_long, void *); 121 Static int athn_usb_load_firmware(struct athn_usb_softc *); 122 Static const struct athn_usb_type * 123 athn_usb_lookup(int, int); 124 Static int athn_usb_media_change(struct ifnet *); 125 Static void athn_usb_newassoc(struct ieee80211_node *, int); 126 Static void athn_usb_newassoc_cb(struct athn_usb_softc *, void *); 127 Static int athn_usb_newstate(struct ieee80211com *, enum ieee80211_state, 128 int); 129 Static void athn_usb_newstate_cb(struct athn_usb_softc *, void *); 130 Static void athn_usb_node_cleanup(struct ieee80211_node *); 131 Static void athn_usb_node_cleanup_cb(struct athn_usb_softc *, void *); 132 Static int athn_usb_open_pipes(struct athn_usb_softc *); 133 Static uint32_t athn_usb_read(struct athn_softc *, uint32_t); 134 Static int athn_usb_remove_hw_node(struct athn_usb_softc *, uint8_t *); 135 Static void athn_usb_rx_enable(struct athn_softc *); 136 Static void athn_usb_rx_frame(struct athn_usb_softc *, struct mbuf *); 137 Static void athn_usb_rx_radiotap(struct athn_softc *, struct mbuf *, 138 struct ar_rx_status *); 139 Static void athn_usb_rx_wmi_ctrl(struct athn_usb_softc *, uint8_t *, size_t); 140 Static void athn_usb_rxeof(struct usbd_xfer *, void *, 141 usbd_status); 142 Static void athn_usb_start(struct ifnet *); 143 Static void athn_usb_stop(struct ifnet *); 144 Static void athn_usb_swba(struct athn_usb_softc *); 145 Static int athn_usb_switch_chan(struct athn_softc *, 146 struct ieee80211_channel *, struct ieee80211_channel *); 147 Static void athn_usb_task(void *); 148 Static int athn_usb_tx(struct athn_softc *, struct mbuf *, 149 struct ieee80211_node *, struct athn_usb_tx_data *); 150 Static void athn_usb_txeof(struct usbd_xfer *, void *, 151 usbd_status); 152 Static void athn_usb_updateslot(struct ifnet *); 153 Static void athn_usb_updateslot_cb(struct athn_usb_softc *, void *); 154 Static void athn_usb_wait_async(struct athn_usb_softc *); 155 Static void athn_usb_wait_cmd(struct athn_usb_softc *); 156 Static void athn_usb_wait_msg(struct athn_usb_softc *); 157 Static void athn_usb_wait_wmi(struct athn_usb_softc *); 158 Static void athn_usb_watchdog(struct ifnet *); 159 Static int athn_usb_wmi_xcmd(struct athn_usb_softc *, uint16_t, void *, 160 int, void *); 161 Static void athn_usb_wmieof(struct usbd_xfer *, void *, 162 usbd_status); 163 Static void athn_usb_write(struct athn_softc *, uint32_t, uint32_t); 164 Static void athn_usb_write_barrier(struct athn_softc *); 165 166 /************************************************************************ 167 * unused/notyet declarations 168 */ 169 #ifdef unused 170 Static int athn_usb_read_rom(struct athn_softc *); 171 #endif /* unused */ 172 173 #ifdef notyet_edca 174 Static void athn_usb_updateedca(struct ieee80211com *); 175 Static void athn_usb_updateedca_cb(struct athn_usb_softc *, void *); 176 #endif /* notyet_edca */ 177 178 #ifdef notyet 179 Static int athn_usb_ampdu_tx_start(struct ieee80211com *, 180 struct ieee80211_node *, uint8_t); 181 Static void athn_usb_ampdu_tx_start_cb(struct athn_usb_softc *, void *); 182 Static void athn_usb_ampdu_tx_stop(struct ieee80211com *, 183 struct ieee80211_node *, uint8_t); 184 Static void athn_usb_ampdu_tx_stop_cb(struct athn_usb_softc *, void *); 185 Static void athn_usb_delete_key(struct ieee80211com *, 186 struct ieee80211_node *, struct ieee80211_key *); 187 Static void athn_usb_delete_key_cb(struct athn_usb_softc *, void *); 188 Static int athn_usb_set_key(struct ieee80211com *, 189 struct ieee80211_node *, struct ieee80211_key *); 190 Static void athn_usb_set_key_cb(struct athn_usb_softc *, void *); 191 #endif /* notyet */ 192 /************************************************************************/ 193 194 struct athn_usb_type { 195 struct usb_devno devno; 196 u_int flags; 197 }; 198 199 Static const struct athn_usb_type * 200 athn_usb_lookup(int vendor, int product) 201 { 202 static const struct athn_usb_type athn_usb_devs[] = { 203 #define _D(v,p,f) \ 204 {{ USB_VENDOR_##v, USB_PRODUCT_##p }, ATHN_USB_FLAG_##f } 205 206 _D( ACCTON, ACCTON_AR9280, AR7010 ), 207 _D( ACTIONTEC, ACTIONTEC_AR9287, AR7010 ), 208 _D( ATHEROS2, ATHEROS2_AR9271_1, NONE ), 209 _D( ATHEROS2, ATHEROS2_AR9271_2, NONE ), 210 _D( ATHEROS2, ATHEROS2_AR9271_3, NONE ), 211 _D( ATHEROS2, ATHEROS2_AR9280, AR7010 ), 212 _D( ATHEROS2, ATHEROS2_AR9287, AR7010 ), 213 _D( AZUREWAVE, AZUREWAVE_AR9271_1, NONE ), 214 _D( AZUREWAVE, AZUREWAVE_AR9271_2, NONE ), 215 _D( AZUREWAVE, AZUREWAVE_AR9271_3, NONE ), 216 _D( AZUREWAVE, AZUREWAVE_AR9271_4, NONE ), 217 _D( AZUREWAVE, AZUREWAVE_AR9271_5, NONE ), 218 _D( AZUREWAVE, AZUREWAVE_AR9271_6, NONE ), 219 _D( DLINK2, DLINK2_AR9271, NONE ), 220 _D( LITEON, LITEON_AR9271, NONE ), 221 _D( NETGEAR, NETGEAR_WNA1100, NONE ), 222 _D( NETGEAR, NETGEAR_WNDA3200, AR7010 ), 223 _D( VIA, VIA_AR9271, NONE ) 224 #undef _D 225 }; 226 227 return (const void *)usb_lookup(athn_usb_devs, vendor, product); 228 } 229 230 Static int 231 athn_usb_match(device_t parent, cfdata_t match, void *aux) 232 { 233 struct usb_attach_arg *uaa = aux; 234 235 return athn_usb_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? 236 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 237 } 238 239 Static void 240 athn_usb_attach(device_t parent, device_t self, void *aux) 241 { 242 struct athn_usb_softc *usc; 243 struct athn_softc *sc; 244 struct usb_attach_arg *uaa; 245 int error; 246 247 usc = device_private(self); 248 sc = &usc->usc_sc; 249 uaa = aux; 250 sc->sc_dev = self; 251 usc->usc_udev = uaa->uaa_device; 252 253 aprint_naive("\n"); 254 aprint_normal("\n"); 255 256 DPRINTFN(DBG_FN, sc, "\n"); 257 258 usc->usc_athn_attached = 0; 259 usc->usc_flags = athn_usb_lookup(uaa->uaa_vendor, uaa->uaa_product)->flags; 260 sc->sc_flags |= ATHN_FLAG_USB; 261 #ifdef notyet 262 /* Check if it is a combo WiFi+Bluetooth (WB193) device. */ 263 if (strncmp(product, "wb193", 5) == 0) 264 sc->sc_flags |= ATHN_FLAG_BTCOEX3WIRE; 265 #endif 266 267 sc->sc_ops.read = athn_usb_read; 268 sc->sc_ops.write = athn_usb_write; 269 sc->sc_ops.write_barrier = athn_usb_write_barrier; 270 271 cv_init(&usc->usc_task_cv, "athntsk"); 272 mutex_init(&usc->usc_task_mtx, MUTEX_DEFAULT, IPL_NET); 273 mutex_init(&usc->usc_tx_mtx, MUTEX_DEFAULT, IPL_NONE); 274 275 usb_init_task(&usc->usc_task, athn_usb_task, usc, 0); 276 277 if (usbd_set_config_no(usc->usc_udev, 1, 0) != 0) { 278 aprint_error_dev(sc->sc_dev, 279 "could not set configuration no\n"); 280 goto fail; 281 } 282 283 /* Get the first interface handle. */ 284 error = usbd_device2interface_handle(usc->usc_udev, 0, &usc->usc_iface); 285 if (error != 0) { 286 aprint_error_dev(sc->sc_dev, 287 "could not get interface handle\n"); 288 goto fail; 289 } 290 291 if (athn_usb_open_pipes(usc) != 0) 292 goto fail; 293 294 /* Allocate xfer for firmware commands. */ 295 if (athn_usb_alloc_tx_cmd(usc) != 0) 296 goto fail; 297 298 /* Allocate Tx/Rx buffers. */ 299 error = athn_usb_alloc_rx_list(usc); 300 if (error != 0) 301 goto fail; 302 error = athn_usb_alloc_tx_list(usc); 303 if (error != 0) 304 goto fail; 305 306 config_mountroot(self, athn_usb_attachhook); 307 308 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, usc->usc_udev, sc->sc_dev); 309 return; 310 311 fail: 312 /* Free Tx/Rx buffers. */ 313 athn_usb_abort_pipes(usc); 314 athn_usb_free_tx_list(usc); 315 athn_usb_free_rx_list(usc); 316 athn_usb_free_tx_cmd(usc); 317 athn_usb_close_pipes(usc); 318 usb_rem_task(usc->usc_udev, &usc->usc_task); 319 mutex_destroy(&usc->usc_tx_mtx); 320 mutex_destroy(&usc->usc_task_mtx); 321 } 322 323 Static void 324 athn_usb_node_cleanup_cb(struct athn_usb_softc *usc, void *arg) 325 { 326 uint8_t sta_index = *(uint8_t *)arg; 327 328 DPRINTFN(DBG_FN, usc, "\n"); 329 DPRINTFN(DBG_NODES, usc, "removing node %u\n", sta_index); 330 athn_usb_remove_hw_node(usc, &sta_index); 331 } 332 333 Static void 334 athn_usb_node_cleanup(struct ieee80211_node *ni) 335 { 336 struct athn_usb_softc *usc; 337 struct ieee80211com *ic; 338 uint8_t sta_index; 339 340 usc = ATHN_USB_SOFTC(ni->ni_ic->ic_ifp->if_softc); 341 ic = &ATHN_SOFTC(usc)->sc_ic; 342 343 DPRINTFN(DBG_FN, usc, "\n"); 344 345 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 346 sta_index = ATHN_NODE(ni)->sta_index; 347 if (sta_index != 0) 348 athn_usb_do_async(usc, athn_usb_node_cleanup_cb, 349 &sta_index, sizeof(sta_index)); 350 } 351 usc->usc_node_cleanup(ni); 352 } 353 354 Static void 355 athn_usb_attachhook(device_t arg) 356 { 357 struct athn_usb_softc *usc = device_private(arg); 358 struct athn_softc *sc = &usc->usc_sc; 359 struct athn_ops *ops = &sc->sc_ops; 360 struct ieee80211com *ic = &sc->sc_ic; 361 struct ifnet *ifp = &sc->sc_if; 362 size_t i; 363 int s, error; 364 365 if (usc->usc_dying) 366 return; 367 368 DPRINTFN(DBG_FN, usc, "\n"); 369 370 /* Load firmware. */ 371 error = athn_usb_load_firmware(usc); 372 if (error != 0) { 373 aprint_error_dev(sc->sc_dev, 374 "could not load firmware (%d)\n", error); 375 return; 376 } 377 378 /* Setup the host transport communication interface. */ 379 error = athn_usb_htc_setup(usc); 380 if (error != 0) 381 return; 382 383 /* We're now ready to attach the bus agnostic driver. */ 384 s = splnet(); 385 ic->ic_ifp = ifp; 386 ic->ic_updateslot = athn_usb_updateslot; 387 sc->sc_max_aid = AR_USB_MAX_STA; /* Firmware is limited to 8 STA */ 388 sc->sc_media_change = athn_usb_media_change; 389 error = athn_attach(sc); 390 if (error != 0) { 391 splx(s); 392 return; 393 } 394 usc->usc_athn_attached = 1; 395 396 /* Override some operations for USB. */ 397 ifp->if_init = athn_usb_init; 398 ifp->if_ioctl = athn_usb_ioctl; 399 ifp->if_start = athn_usb_start; 400 ifp->if_watchdog = athn_usb_watchdog; 401 402 /* hooks for HostAP association and disassociation */ 403 ic->ic_newassoc = athn_usb_newassoc; 404 usc->usc_node_cleanup = ic->ic_node_cleanup; 405 ic->ic_node_cleanup = athn_usb_node_cleanup; 406 407 #ifdef notyet_edca 408 ic->ic_updateedca = athn_usb_updateedca; 409 #endif 410 #ifdef notyet 411 ic->ic_set_key = athn_usb_set_key; 412 ic->ic_delete_key = athn_usb_delete_key; 413 ic->ic_ampdu_tx_start = athn_usb_ampdu_tx_start; 414 ic->ic_ampdu_tx_stop = athn_usb_ampdu_tx_stop; 415 #endif 416 ic->ic_newstate = athn_usb_newstate; 417 418 ops->rx_enable = athn_usb_rx_enable; 419 splx(s); 420 421 /* Reset HW key cache entries. */ 422 for (i = 0; i < sc->sc_kc_entries; i++) 423 athn_reset_key(sc, i); 424 425 ops->enable_antenna_diversity(sc); 426 427 #ifdef ATHN_BT_COEXISTENCE 428 /* Configure bluetooth coexistence for combo chips. */ 429 if (sc->sc_flags & ATHN_FLAG_BTCOEX) 430 athn_btcoex_init(sc); 431 #endif 432 /* Configure LED. */ 433 athn_led_init(sc); 434 435 ieee80211_announce(ic); 436 } 437 438 Static int 439 athn_usb_detach(device_t self, int flags) 440 { 441 struct athn_usb_softc *usc = device_private(self); 442 struct athn_softc *sc = &usc->usc_sc; 443 int s; 444 445 DPRINTFN(DBG_FN, usc, "\n"); 446 447 s = splusb(); 448 usc->usc_dying = 1; 449 450 athn_usb_wait_wmi(usc); 451 athn_usb_wait_cmd(usc); 452 athn_usb_wait_msg(usc); 453 athn_usb_wait_async(usc); 454 455 usb_rem_task(usc->usc_udev, &usc->usc_task); 456 457 if (usc->usc_athn_attached) { 458 usc->usc_athn_attached = 0; 459 athn_detach(sc); 460 } 461 /* Abort Tx/Rx pipes. */ 462 athn_usb_abort_pipes(usc); 463 splx(s); 464 465 /* Free Tx/Rx buffers. */ 466 athn_usb_free_rx_list(usc); 467 athn_usb_free_tx_list(usc); 468 athn_usb_free_tx_cmd(usc); 469 470 /* Close Tx/Rx pipes. */ 471 athn_usb_close_pipes(usc); 472 473 mutex_destroy(&usc->usc_tx_mtx); 474 mutex_destroy(&usc->usc_task_mtx); 475 cv_destroy(&usc->usc_task_cv); 476 477 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, usc->usc_udev, sc->sc_dev); 478 return 0; 479 } 480 481 Static int 482 athn_usb_activate(device_t self, enum devact act) 483 { 484 struct athn_usb_softc *usc = device_private(self); 485 struct athn_softc *sc = &usc->usc_sc; 486 487 DPRINTFN(DBG_FN, usc, "\n"); 488 489 switch (act) { 490 case DVACT_DEACTIVATE: 491 if_deactivate(sc->sc_ic.ic_ifp); 492 usc->usc_dying = 1; 493 return 0; 494 default: 495 return EOPNOTSUPP; 496 } 497 } 498 499 Static int 500 athn_usb_open_pipes(struct athn_usb_softc *usc) 501 { 502 usb_endpoint_descriptor_t *ed; 503 int error; 504 505 DPRINTFN(DBG_FN, usc, "\n"); 506 507 error = usbd_open_pipe(usc->usc_iface, AR_PIPE_TX_DATA, 0, 508 &usc->usc_tx_data_pipe); 509 if (error != 0) { 510 aprint_error_dev(usc->usc_dev, 511 "could not open Tx bulk pipe\n"); 512 goto fail; 513 } 514 515 error = usbd_open_pipe(usc->usc_iface, AR_PIPE_RX_DATA, 0, 516 &usc->usc_rx_data_pipe); 517 if (error != 0) { 518 aprint_error_dev(usc->usc_dev, 519 "could not open Rx bulk pipe\n"); 520 goto fail; 521 } 522 523 ed = usbd_get_endpoint_descriptor(usc->usc_iface, AR_PIPE_RX_INTR); 524 if (ed == NULL) { 525 aprint_error_dev(usc->usc_dev, 526 "could not retrieve Rx intr pipe descriptor\n"); 527 goto fail; 528 } 529 usc->usc_ibufsize = UGETW(ed->wMaxPacketSize); 530 if (usc->usc_ibufsize == 0) { 531 aprint_error_dev(usc->usc_dev, 532 "invalid Rx intr pipe descriptor\n"); 533 goto fail; 534 } 535 usc->usc_ibuf = kmem_alloc(usc->usc_ibufsize, KM_SLEEP); 536 if (usc->usc_ibuf == NULL) { 537 aprint_error_dev(usc->usc_dev, 538 "could not allocate Rx intr buffer\n"); 539 goto fail; 540 } 541 542 error = usbd_open_pipe_intr(usc->usc_iface, AR_PIPE_RX_INTR, 543 USBD_SHORT_XFER_OK, &usc->usc_rx_intr_pipe, usc, usc->usc_ibuf, 544 usc->usc_ibufsize, athn_usb_intr, USBD_DEFAULT_INTERVAL); 545 if (error != 0) { 546 aprint_error_dev(usc->usc_dev, 547 "could not open Rx intr pipe\n"); 548 goto fail; 549 } 550 error = usbd_open_pipe(usc->usc_iface, AR_PIPE_TX_INTR, 0, 551 &usc->usc_tx_intr_pipe); 552 if (error != 0) { 553 aprint_error_dev(usc->usc_dev, 554 "could not open Tx intr pipe\n"); 555 goto fail; 556 } 557 return 0; 558 fail: 559 athn_usb_abort_pipes(usc); 560 athn_usb_close_pipes(usc); 561 return error; 562 } 563 564 static inline void 565 athn_usb_kill_pipe(struct usbd_pipe **pipeptr) 566 { 567 struct usbd_pipe *pipe; 568 569 CTASSERT(sizeof(pipe) == sizeof(void *)); 570 pipe = atomic_swap_ptr(pipeptr, NULL); 571 if (pipe != NULL) { 572 usbd_close_pipe(pipe); 573 } 574 } 575 576 Static void 577 athn_usb_abort_pipes(struct athn_usb_softc *usc) 578 { 579 DPRINTFN(DBG_FN, usc, "\n"); 580 581 if (usc->usc_tx_data_pipe != NULL) 582 usbd_abort_pipe(usc->usc_tx_data_pipe); 583 if (usc->usc_rx_data_pipe != NULL) 584 usbd_abort_pipe(usc->usc_rx_data_pipe); 585 if (usc->usc_tx_intr_pipe != NULL) 586 usbd_abort_pipe(usc->usc_tx_intr_pipe); 587 if (usc->usc_rx_intr_pipe != NULL) 588 usbd_abort_pipe(usc->usc_rx_intr_pipe); 589 } 590 591 Static void 592 athn_usb_close_pipes(struct athn_usb_softc *usc) 593 { 594 uint8_t *ibuf; 595 596 DPRINTFN(DBG_FN, usc, "\n"); 597 598 athn_usb_kill_pipe(&usc->usc_tx_data_pipe); 599 athn_usb_kill_pipe(&usc->usc_rx_data_pipe); 600 athn_usb_kill_pipe(&usc->usc_tx_intr_pipe); 601 athn_usb_kill_pipe(&usc->usc_rx_intr_pipe); 602 ibuf = atomic_swap_ptr(&usc->usc_ibuf, NULL); 603 if (ibuf != NULL) 604 kmem_free(ibuf, usc->usc_ibufsize); 605 } 606 607 Static int 608 athn_usb_alloc_rx_list(struct athn_usb_softc *usc) 609 { 610 struct athn_usb_rx_data *data; 611 size_t i; 612 int error = 0; 613 614 DPRINTFN(DBG_FN, usc, "\n"); 615 616 for (i = 0; i < ATHN_USB_RX_LIST_COUNT; i++) { 617 data = &usc->usc_rx_data[i]; 618 619 data->sc = usc; /* Backpointer for callbacks. */ 620 621 error = usbd_create_xfer(usc->usc_rx_data_pipe, 622 ATHN_USB_RXBUFSZ, USBD_SHORT_XFER_OK, 0, &data->xfer); 623 if (error) { 624 aprint_error_dev(usc->usc_dev, 625 "could not allocate xfer\n"); 626 break; 627 } 628 data->buf = usbd_get_buffer(data->xfer); 629 } 630 if (error != 0) 631 athn_usb_free_rx_list(usc); 632 return error; 633 } 634 635 Static void 636 athn_usb_free_rx_list(struct athn_usb_softc *usc) 637 { 638 struct usbd_xfer *xfer; 639 size_t i; 640 641 DPRINTFN(DBG_FN, usc, "\n"); 642 643 /* NB: Caller must abort pipe first. */ 644 for (i = 0; i < ATHN_USB_RX_LIST_COUNT; i++) { 645 CTASSERT(sizeof(xfer) == sizeof(void *)); 646 xfer = atomic_swap_ptr(&usc->usc_rx_data[i].xfer, NULL); 647 if (xfer != NULL) 648 usbd_destroy_xfer(xfer); 649 } 650 } 651 652 Static int 653 athn_usb_alloc_tx_list(struct athn_usb_softc *usc) 654 { 655 struct athn_usb_tx_data *data; 656 size_t i; 657 int error = 0; 658 659 DPRINTFN(DBG_FN, usc, "\n"); 660 661 mutex_enter(&usc->usc_tx_mtx); 662 TAILQ_INIT(&usc->usc_tx_free_list); 663 for (i = 0; i < ATHN_USB_TX_LIST_COUNT; i++) { 664 data = &usc->usc_tx_data[i]; 665 666 data->sc = usc; /* Backpointer for callbacks. */ 667 668 error = usbd_create_xfer(usc->usc_tx_data_pipe, 669 ATHN_USB_TXBUFSZ, USBD_SHORT_XFER_OK, 0, &data->xfer); 670 if (error) { 671 aprint_error_dev(usc->usc_dev, 672 "could not create xfer on TX pipe\n"); 673 break; 674 } 675 data->buf = usbd_get_buffer(data->xfer); 676 677 /* Append this Tx buffer to our free list. */ 678 TAILQ_INSERT_TAIL(&usc->usc_tx_free_list, data, next); 679 } 680 if (error != 0) 681 athn_usb_free_tx_list(usc); 682 mutex_exit(&usc->usc_tx_mtx); 683 return error; 684 } 685 686 Static void 687 athn_usb_free_tx_list(struct athn_usb_softc *usc) 688 { 689 struct usbd_xfer *xfer; 690 size_t i; 691 692 DPRINTFN(DBG_FN, usc, "\n"); 693 694 /* NB: Caller must abort pipe first. */ 695 for (i = 0; i < ATHN_USB_TX_LIST_COUNT; i++) { 696 CTASSERT(sizeof(xfer) == sizeof(void *)); 697 xfer = atomic_swap_ptr(&usc->usc_tx_data[i].xfer, NULL); 698 if (xfer != NULL) 699 usbd_destroy_xfer(xfer); 700 } 701 } 702 703 Static int 704 athn_usb_alloc_tx_cmd(struct athn_usb_softc *usc) 705 { 706 struct athn_usb_tx_data *data = &usc->usc_tx_cmd; 707 708 DPRINTFN(DBG_FN, usc, "\n"); 709 710 data->sc = usc; /* Backpointer for callbacks. */ 711 712 int err = usbd_create_xfer(usc->usc_tx_intr_pipe, ATHN_USB_TXCMDSZ, 713 0, 0, &data->xfer); 714 if (err) { 715 aprint_error_dev(usc->usc_dev, 716 "could not allocate command xfer\n"); 717 return err; 718 } 719 720 return 0; 721 } 722 723 Static void 724 athn_usb_free_tx_cmd(struct athn_usb_softc *usc) 725 { 726 struct usbd_xfer *xfer; 727 728 DPRINTFN(DBG_FN, usc, "\n"); 729 730 CTASSERT(sizeof(xfer) == sizeof(void *)); 731 xfer = atomic_swap_ptr(&usc->usc_tx_cmd.xfer, NULL); 732 if (xfer != NULL) 733 usbd_destroy_xfer(xfer); 734 } 735 736 Static void 737 athn_usb_task(void *arg) 738 { 739 struct athn_usb_softc *usc = arg; 740 struct athn_usb_host_cmd_ring *ring = &usc->usc_cmdq; 741 struct athn_usb_host_cmd *cmd; 742 int s; 743 744 DPRINTFN(DBG_FN, usc, "\n"); 745 746 /* Process host commands. */ 747 s = splusb(); 748 mutex_spin_enter(&usc->usc_task_mtx); 749 while (ring->next != ring->cur) { 750 cmd = &ring->cmd[ring->next]; 751 mutex_spin_exit(&usc->usc_task_mtx); 752 splx(s); 753 754 /* Invoke callback. */ 755 if (!usc->usc_dying) 756 cmd->cb(usc, cmd->data); 757 758 s = splusb(); 759 mutex_spin_enter(&usc->usc_task_mtx); 760 ring->queued--; 761 ring->next = (ring->next + 1) % ATHN_USB_HOST_CMD_RING_COUNT; 762 } 763 mutex_spin_exit(&usc->usc_task_mtx); 764 wakeup(ring); 765 splx(s); 766 } 767 768 Static void 769 athn_usb_do_async(struct athn_usb_softc *usc, 770 void (*cb)(struct athn_usb_softc *, void *), void *arg, int len) 771 { 772 struct athn_usb_host_cmd_ring *ring = &usc->usc_cmdq; 773 struct athn_usb_host_cmd *cmd; 774 int s; 775 776 if (usc->usc_dying) 777 return; 778 779 DPRINTFN(DBG_FN, usc, "\n"); 780 781 s = splusb(); 782 mutex_spin_enter(&usc->usc_task_mtx); 783 cmd = &ring->cmd[ring->cur]; 784 cmd->cb = cb; 785 KASSERT(len <= sizeof(cmd->data)); 786 memcpy(cmd->data, arg, len); 787 ring->cur = (ring->cur + 1) % ATHN_USB_HOST_CMD_RING_COUNT; 788 789 /* If there is no pending command already, schedule a task. */ 790 if (++ring->queued == 1) { 791 mutex_spin_exit(&usc->usc_task_mtx); 792 usb_add_task(usc->usc_udev, &usc->usc_task, USB_TASKQ_DRIVER); 793 } 794 else 795 mutex_spin_exit(&usc->usc_task_mtx); 796 splx(s); 797 } 798 799 Static void 800 athn_usb_wait_async(struct athn_usb_softc *usc) 801 { 802 803 DPRINTFN(DBG_FN, usc, "\n"); 804 805 /* Wait for all queued asynchronous commands to complete. */ 806 mutex_spin_enter(&usc->usc_task_mtx); 807 while (usc->usc_cmdq.queued > 0) 808 cv_wait(&usc->usc_task_cv, &usc->usc_task_mtx); 809 mutex_spin_exit(&usc->usc_task_mtx); 810 } 811 812 Static int 813 athn_usb_load_firmware(struct athn_usb_softc *usc) 814 { 815 struct athn_softc *sc = &usc->usc_sc; 816 firmware_handle_t fwh; 817 usb_device_descriptor_t *dd; 818 usb_device_request_t req; 819 const char *name; 820 u_char *fw, *ptr; 821 size_t size, remain; 822 uint32_t addr; 823 int s, mlen, error; 824 825 DPRINTFN(DBG_FN, sc, "\n"); 826 827 /* Determine which firmware image to load. */ 828 if (usc->usc_flags & ATHN_USB_FLAG_AR7010) { 829 dd = usbd_get_device_descriptor(usc->usc_udev); 830 if (UGETW(dd->bcdDevice) == 0x0202) 831 name = "athn-ar7010-11"; 832 else 833 name = "athn-ar7010"; 834 } 835 else 836 name = "athn-ar9271"; 837 838 /* Read firmware image from the filesystem. */ 839 if ((error = firmware_open("if_athn", name, &fwh)) != 0) { 840 aprint_error_dev(sc->sc_dev, 841 "failed to open firmware file %s (%d)\n", name, error); 842 return error; 843 } 844 size = firmware_get_size(fwh); 845 fw = firmware_malloc(size); 846 if (fw == NULL) { 847 aprint_error_dev(usc->usc_dev, 848 "failed to allocate firmware memory\n"); 849 firmware_close(fwh); 850 return ENOMEM; 851 } 852 error = firmware_read(fwh, 0, fw, size); 853 firmware_close(fwh); 854 if (error != 0) { 855 aprint_error_dev(usc->usc_dev, 856 "failed to read firmware (error %d)\n", error); 857 firmware_free(fw, size); 858 return error; 859 } 860 861 /* Load firmware image. */ 862 ptr = fw; 863 addr = AR9271_FIRMWARE >> 8; 864 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 865 req.bRequest = AR_FW_DOWNLOAD; 866 USETW(req.wIndex, 0); 867 remain = size; 868 while (remain > 0) { 869 mlen = MIN(remain, 4096); 870 871 USETW(req.wValue, addr); 872 USETW(req.wLength, mlen); 873 error = usbd_do_request(usc->usc_udev, &req, ptr); 874 if (error != 0) { 875 firmware_free(fw, size); 876 return error; 877 } 878 addr += mlen >> 8; 879 ptr += mlen; 880 remain -= mlen; 881 } 882 firmware_free(fw, size); 883 884 /* Start firmware. */ 885 if (usc->usc_flags & ATHN_USB_FLAG_AR7010) 886 addr = AR7010_FIRMWARE_TEXT >> 8; 887 else 888 addr = AR9271_FIRMWARE_TEXT >> 8; 889 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 890 req.bRequest = AR_FW_DOWNLOAD_COMP; 891 USETW(req.wIndex, 0); 892 USETW(req.wValue, addr); 893 USETW(req.wLength, 0); 894 895 s = splusb(); 896 usc->usc_wait_msg_id = AR_HTC_MSG_READY; 897 error = usbd_do_request(usc->usc_udev, &req, NULL); 898 /* Wait at most 1 second for firmware to boot. */ 899 if (error == 0 && usc->usc_wait_msg_id != 0) 900 error = tsleep(&usc->usc_wait_msg_id, 0, "athnfw", hz); 901 usc->usc_wait_msg_id = 0; 902 splx(s); 903 return error; 904 } 905 906 Static int 907 athn_usb_htc_msg(struct athn_usb_softc *usc, uint16_t msg_id, void *buf, 908 int len) 909 { 910 struct athn_usb_tx_data *data = &usc->usc_tx_cmd; 911 struct ar_htc_frame_hdr *htc; 912 struct ar_htc_msg_hdr *msg; 913 914 if (usc->usc_dying) 915 return USBD_CANCELLED; 916 917 DPRINTFN(DBG_FN, usc, "\n"); 918 919 htc = (struct ar_htc_frame_hdr *)data->buf; 920 memset(htc, 0, sizeof(*htc)); 921 htc->endpoint_id = 0; 922 htc->payload_len = htobe16(sizeof(*msg) + len); 923 924 msg = (struct ar_htc_msg_hdr *)&htc[1]; 925 msg->msg_id = htobe16(msg_id); 926 927 memcpy(&msg[1], buf, len); 928 929 usbd_setup_xfer(data->xfer, NULL, data->buf, 930 sizeof(*htc) + sizeof(*msg) + len, 931 USBD_SHORT_XFER_OK, ATHN_USB_CMD_TIMEOUT, NULL); 932 return usbd_sync_transfer(data->xfer); 933 } 934 935 Static int 936 athn_usb_htc_setup(struct athn_usb_softc *usc) 937 { 938 struct ar_htc_msg_config_pipe cfg; 939 int s, error; 940 941 /* 942 * Connect WMI services to USB pipes. 943 */ 944 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_CONTROL, 945 AR_PIPE_TX_INTR, AR_PIPE_RX_INTR, &usc->usc_ep_ctrl); 946 if (error != 0) 947 return error; 948 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_BEACON, 949 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_bcn); 950 if (error != 0) 951 return error; 952 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_CAB, 953 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_cab); 954 if (error != 0) 955 return error; 956 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_UAPSD, 957 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_uapsd); 958 if (error != 0) 959 return error; 960 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_MGMT, 961 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_mgmt); 962 if (error != 0) 963 return error; 964 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_BE, 965 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_BE]); 966 if (error != 0) 967 return error; 968 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_BK, 969 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_BK]); 970 if (error != 0) 971 return error; 972 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_VI, 973 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_VI]); 974 if (error != 0) 975 return error; 976 error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_VO, 977 AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_VO]); 978 if (error != 0) 979 return error; 980 981 /* Set credits for WLAN Tx pipe. */ 982 memset(&cfg, 0, sizeof(cfg)); 983 cfg.pipe_id = UE_GET_ADDR(AR_PIPE_TX_DATA); 984 cfg.credits = (usc->usc_flags & ATHN_USB_FLAG_AR7010) ? 45 : 33; 985 986 s = splusb(); 987 988 usc->usc_wait_msg_id = AR_HTC_MSG_CONF_PIPE_RSP; 989 error = athn_usb_htc_msg(usc, AR_HTC_MSG_CONF_PIPE, &cfg, sizeof(cfg)); 990 if (error == 0 && usc->usc_wait_msg_id != 0) 991 error = tsleep(&usc->usc_wait_msg_id, 0, "athnhtc", hz); 992 usc->usc_wait_msg_id = 0; 993 994 splx(s); 995 996 if (error != 0) { 997 aprint_error_dev(usc->usc_dev, "could not configure pipe\n"); 998 return error; 999 } 1000 1001 error = athn_usb_htc_msg(usc, AR_HTC_MSG_SETUP_COMPLETE, NULL, 0); 1002 if (error != 0) { 1003 aprint_error_dev(usc->usc_dev, "could not complete setup\n"); 1004 return error; 1005 } 1006 return 0; 1007 } 1008 1009 Static int 1010 athn_usb_htc_connect_svc(struct athn_usb_softc *usc, uint16_t svc_id, 1011 uint8_t ul_pipe, uint8_t dl_pipe, uint8_t *endpoint_id) 1012 { 1013 struct ar_htc_msg_conn_svc msg; 1014 struct ar_htc_msg_conn_svc_rsp rsp; 1015 int s, error; 1016 1017 DPRINTFN(DBG_FN, usc, "\n"); 1018 1019 memset(&msg, 0, sizeof(msg)); 1020 msg.svc_id = htobe16(svc_id); 1021 msg.dl_pipeid = UE_GET_ADDR(dl_pipe); 1022 msg.ul_pipeid = UE_GET_ADDR(ul_pipe); 1023 s = splusb(); 1024 1025 usc->usc_msg_conn_svc_rsp = &rsp; 1026 1027 usc->usc_wait_msg_id = AR_HTC_MSG_CONN_SVC_RSP; 1028 error = athn_usb_htc_msg(usc, AR_HTC_MSG_CONN_SVC, &msg, sizeof(msg)); 1029 if (error == 0 && usc->usc_wait_msg_id != 0) 1030 error = tsleep(&usc->usc_wait_msg_id, 0, "athnhtc", hz); 1031 usc->usc_wait_msg_id = 0; 1032 1033 splx(s); 1034 if (error != 0) { 1035 aprint_error_dev(usc->usc_dev, 1036 "error waiting for service %d connection\n", svc_id); 1037 return error; 1038 } 1039 if (rsp.status != AR_HTC_SVC_SUCCESS) { 1040 aprint_error_dev(usc->usc_dev, 1041 "service %d connection failed, error %d\n", 1042 svc_id, rsp.status); 1043 return EIO; 1044 } 1045 DPRINTFN(DBG_INIT, usc, 1046 "service %d successfully connected to endpoint %d\n", 1047 svc_id, rsp.endpoint_id); 1048 1049 /* Return endpoint id. */ 1050 *endpoint_id = rsp.endpoint_id; 1051 return 0; 1052 } 1053 1054 Static void 1055 athn_usb_wait_msg(struct athn_usb_softc *usc) 1056 { 1057 1058 DPRINTFN(DBG_FN, usc, "\n"); 1059 1060 while (__predict_false(usc->usc_wait_msg_id)) 1061 tsleep(&usc->usc_wait_msg_id, 0, "athnmsg", hz); 1062 } 1063 1064 Static void 1065 athn_usb_wait_cmd(struct athn_usb_softc *usc) 1066 { 1067 1068 DPRINTFN(DBG_FN, usc, "\n"); 1069 1070 while (__predict_false(usc->usc_wait_cmd_id)) 1071 tsleep(&usc->usc_wait_cmd_id, 0, "athncmd", hz); 1072 } 1073 1074 Static void 1075 athn_usb_wmieof(struct usbd_xfer *xfer, void * priv, 1076 usbd_status status) 1077 { 1078 struct athn_usb_softc *usc = priv; 1079 1080 DPRINTFN(DBG_FN, usc, "\n"); 1081 1082 if (__predict_false(status == USBD_STALLED)) 1083 usbd_clear_endpoint_stall_async(usc->usc_tx_intr_pipe); 1084 1085 usc->usc_wmi_done = 1; 1086 wakeup(&usc->usc_wmi_done); 1087 } 1088 1089 Static int 1090 athn_usb_wmi_xcmd(struct athn_usb_softc *usc, uint16_t cmd_id, void *ibuf, 1091 int ilen, void *obuf) 1092 { 1093 struct athn_usb_tx_data *data = &usc->usc_tx_cmd; 1094 struct ar_htc_frame_hdr *htc; 1095 struct ar_wmi_cmd_hdr *wmi; 1096 int s, error; 1097 1098 if (usc->usc_dying) 1099 return EIO; 1100 1101 DPRINTFN(DBG_FN, usc, "\n"); 1102 1103 htc = (struct ar_htc_frame_hdr *)data->buf; 1104 memset(htc, 0, sizeof(*htc)); 1105 htc->endpoint_id = usc->usc_ep_ctrl; 1106 htc->payload_len = htobe16(sizeof(*wmi) + ilen); 1107 1108 wmi = (struct ar_wmi_cmd_hdr *)&htc[1]; 1109 wmi->cmd_id = htobe16(cmd_id); 1110 usc->usc_wmi_seq_no++; 1111 wmi->seq_no = htobe16(usc->usc_wmi_seq_no); 1112 1113 memcpy(&wmi[1], ibuf, ilen); 1114 1115 usbd_setup_xfer(data->xfer, usc, data->buf, 1116 sizeof(*htc) + sizeof(*wmi) + ilen, 1117 USBD_SHORT_XFER_OK, ATHN_USB_CMD_TIMEOUT, 1118 athn_usb_wmieof); 1119 1120 s = splusb(); 1121 usc->usc_wmi_done = 0; 1122 usc->usc_wait_cmd_id = cmd_id; 1123 error = usbd_transfer(data->xfer); 1124 if (__predict_true(error == 0 || error == USBD_IN_PROGRESS)) { 1125 usc->usc_obuf = obuf; 1126 1127 /* Wait for WMI command to complete. */ 1128 error = tsleep(&usc->usc_wait_cmd_id, 0, "athnwmi", hz); 1129 usc->usc_wait_cmd_id = 0; 1130 athn_usb_wait_wmi(usc); 1131 } 1132 splx(s); 1133 return error; 1134 } 1135 1136 Static void 1137 athn_usb_wait_wmi(struct athn_usb_softc *usc) 1138 { 1139 1140 DPRINTFN(DBG_FN, usc, "\n"); 1141 1142 while (__predict_false(!usc->usc_wmi_done)) 1143 tsleep(&usc->usc_wmi_done, 0, "athnwmi", 0); 1144 } 1145 1146 #ifdef unused 1147 Static int 1148 athn_usb_read_rom(struct athn_softc *sc) 1149 { 1150 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1151 uint32_t addrs[8], vals[8], addr; 1152 uint16_t *eep; 1153 size_t i, j; 1154 int error = 0; 1155 1156 DPRINTFN(DBG_FN, sc, "\n"); 1157 1158 /* Read EEPROM by blocks of 16 bytes. */ 1159 eep = sc->sc_eep; 1160 addr = AR_EEPROM_OFFSET(sc->sc_eep_base); 1161 for (i = 0; i < sc->sc_eep_size / 16; i++) { 1162 for (j = 0; j < 8; j++, addr += 4) 1163 addrs[j] = htobe32(addr); 1164 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_REG_READ, 1165 addrs, sizeof(addrs), vals); 1166 if (error != 0) 1167 break; 1168 for (j = 0; j < 8; j++) 1169 *eep++ = be32toh(vals[j]); 1170 } 1171 return error; 1172 } 1173 #endif /* unused */ 1174 1175 Static uint32_t 1176 athn_usb_read(struct athn_softc *sc, uint32_t addr) 1177 { 1178 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1179 uint32_t val; 1180 int error; 1181 1182 if (usc->usc_dying) 1183 return 0; 1184 1185 DPRINTFN(DBG_FN, sc, "\n"); 1186 1187 /* Flush pending writes for strict consistency. */ 1188 athn_usb_write_barrier(sc); 1189 1190 addr = htobe32(addr); 1191 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_REG_READ, 1192 &addr, sizeof(addr), &val); 1193 if (error != 0) 1194 return 0xdeadbeef; 1195 return be32toh(val); 1196 } 1197 1198 Static void 1199 athn_usb_write(struct athn_softc *sc, uint32_t addr, uint32_t val) 1200 { 1201 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1202 1203 if (usc->usc_dying) 1204 return; 1205 1206 DPRINTFN(DBG_FN, sc, "\n"); 1207 1208 usc->usc_wbuf[usc->usc_wcount].addr = htobe32(addr); 1209 usc->usc_wbuf[usc->usc_wcount].val = htobe32(val); 1210 if (++usc->usc_wcount == AR_MAX_WRITE_COUNT) 1211 athn_usb_write_barrier(sc); 1212 } 1213 1214 Static void 1215 athn_usb_write_barrier(struct athn_softc *sc) 1216 { 1217 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1218 1219 if (usc->usc_dying) 1220 goto done; 1221 1222 DPRINTFN(DBG_FN, sc, "\n"); 1223 1224 if (usc->usc_wcount == 0) 1225 return; 1226 1227 (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_REG_WRITE, 1228 usc->usc_wbuf, usc->usc_wcount * sizeof(usc->usc_wbuf[0]), NULL); 1229 done: 1230 usc->usc_wcount = 0; /* Always flush buffer. */ 1231 } 1232 1233 Static int 1234 athn_usb_media_change(struct ifnet *ifp) 1235 { 1236 struct athn_softc *sc = ifp->if_softc; 1237 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1238 int error; 1239 1240 if (usc->usc_dying) 1241 return EIO; 1242 1243 DPRINTFN(DBG_FN, sc, "\n"); 1244 1245 error = ieee80211_media_change(ifp); 1246 if (error == ENETRESET && IS_UP_AND_RUNNING(ifp)) { 1247 athn_usb_stop(ifp); 1248 error = athn_usb_init(ifp); 1249 } 1250 return error; 1251 } 1252 1253 Static int 1254 athn_usb_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, 1255 int arg) 1256 { 1257 struct athn_softc *sc = ic->ic_ifp->if_softc; 1258 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1259 struct athn_usb_cmd_newstate cmd; 1260 1261 DPRINTFN(DBG_FN, sc, "\n"); 1262 1263 /* Do it in a process context. */ 1264 cmd.state = nstate; 1265 cmd.arg = arg; 1266 athn_usb_do_async(usc, athn_usb_newstate_cb, &cmd, sizeof(cmd)); 1267 return 0; 1268 } 1269 1270 Static void 1271 athn_usb_newstate_cb(struct athn_usb_softc *usc, void *arg) 1272 { 1273 struct athn_usb_cmd_newstate *cmd = arg; 1274 struct athn_softc *sc = &usc->usc_sc; 1275 struct ieee80211com *ic = &sc->sc_ic; 1276 enum ieee80211_state ostate, nstate; 1277 uint32_t reg, imask; 1278 int s; 1279 1280 DPRINTFN(DBG_FN, sc, "\n"); 1281 1282 callout_stop(&sc->sc_calib_to); 1283 1284 s = splnet(); 1285 1286 ostate = ic->ic_state; 1287 nstate = cmd->state; 1288 DPRINTFN(DBG_STM, usc, "newstate %s(%d) -> %s(%d)\n", 1289 ieee80211_state_name[ostate], ostate, 1290 ieee80211_state_name[nstate], nstate); 1291 1292 if (ostate == IEEE80211_S_RUN) { 1293 uint8_t sta_index; 1294 1295 sta_index = ATHN_NODE(ic->ic_bss)->sta_index; 1296 DPRINTFN(DBG_NODES, usc, "removing node %u\n", sta_index); 1297 athn_usb_remove_hw_node(usc, &sta_index); 1298 } 1299 1300 switch (nstate) { 1301 case IEEE80211_S_INIT: 1302 athn_set_led(sc, 0); 1303 break; 1304 case IEEE80211_S_SCAN: 1305 /* Make the LED blink while scanning. */ 1306 athn_set_led(sc, !sc->sc_led_state); 1307 (void)athn_usb_switch_chan(sc, ic->ic_curchan, NULL); 1308 if (!usc->usc_dying) 1309 callout_schedule(&sc->sc_scan_to, hz / 5); 1310 break; 1311 case IEEE80211_S_AUTH: 1312 athn_set_led(sc, 0); 1313 athn_usb_switch_chan(sc, ic->ic_curchan, NULL); 1314 break; 1315 case IEEE80211_S_ASSOC: 1316 break; 1317 case IEEE80211_S_RUN: 1318 athn_set_led(sc, 1); 1319 1320 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1321 break; 1322 1323 /* Create node entry for our BSS. */ 1324 DPRINTFN(DBG_NODES, sc, "create node for AID=0x%x\n", 1325 ic->ic_bss->ni_associd); 1326 athn_usb_create_node(usc, ic->ic_bss); /* XXX: handle error? */ 1327 1328 athn_set_bss(sc, ic->ic_bss); 1329 athn_usb_wmi_cmd(usc, AR_WMI_CMD_DISABLE_INTR); 1330 #ifndef IEEE80211_STA_ONLY 1331 if (ic->ic_opmode == IEEE80211_M_HOSTAP) { 1332 athn_set_hostap_timers(sc); 1333 /* Enable software beacon alert interrupts. */ 1334 imask = htobe32(AR_IMR_SWBA); 1335 } 1336 else 1337 #endif 1338 { 1339 athn_set_sta_timers(sc); 1340 /* Enable beacon miss interrupts. */ 1341 imask = htobe32(AR_IMR_BMISS); 1342 1343 /* Stop receiving beacons from other BSS. */ 1344 reg = AR_READ(sc, AR_RX_FILTER); 1345 reg = (reg & ~AR_RX_FILTER_BEACON) | 1346 AR_RX_FILTER_MYBEACON; 1347 AR_WRITE(sc, AR_RX_FILTER, reg); 1348 AR_WRITE_BARRIER(sc); 1349 } 1350 athn_usb_wmi_xcmd(usc, AR_WMI_CMD_ENABLE_INTR, 1351 &imask, sizeof(imask), NULL); 1352 break; 1353 } 1354 if (!usc->usc_dying) 1355 (void)sc->sc_newstate(ic, nstate, cmd->arg); 1356 splx(s); 1357 } 1358 1359 Static void 1360 athn_usb_newassoc(struct ieee80211_node *ni, int isnew) 1361 { 1362 struct ieee80211com *ic = ni->ni_ic; 1363 struct athn_softc *sc = ic->ic_ifp->if_softc; 1364 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1365 1366 DPRINTFN(DBG_FN, sc, "\n"); 1367 1368 if (ic->ic_opmode != IEEE80211_M_HOSTAP || !isnew) 1369 return; 1370 1371 /* Do it in a process context. */ 1372 ieee80211_ref_node(ni); 1373 athn_usb_do_async(usc, athn_usb_newassoc_cb, &ni, sizeof(ni)); 1374 } 1375 1376 Static void 1377 athn_usb_newassoc_cb(struct athn_usb_softc *usc, void *arg) 1378 { 1379 struct ieee80211_node *ni = *(void **)arg; 1380 int s; 1381 1382 DPRINTFN(DBG_FN, usc, "\n"); 1383 1384 s = splnet(); 1385 /* NB: Node may have left before we got scheduled. */ 1386 if (ni->ni_associd != 0) { 1387 DPRINTFN(DBG_NODES, usc, "creating node for AID=0x%x\n", 1388 ni->ni_associd); 1389 (void)athn_usb_create_node(usc, ni); /* XXX: handle error? */ 1390 } 1391 ieee80211_free_node(ni); 1392 splx(s); 1393 } 1394 1395 #ifdef notyet 1396 Static int 1397 athn_usb_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni, 1398 uint8_t tid) 1399 { 1400 struct athn_softc *sc = ic->ic_ifp->if_softc; 1401 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1402 struct athn_node *an = ATHN_NODE(ni); 1403 struct athn_usb_aggr_cmd cmd; 1404 1405 DPRINTFN(DBG_FN, sc, "\n"); 1406 1407 /* Do it in a process context. */ 1408 cmd.sta_index = an->sta_index; 1409 cmd.tid = tid; 1410 athn_usb_do_async(usc, athn_usb_ampdu_tx_start_cb, &cmd, sizeof(cmd)); 1411 return 0; 1412 } 1413 1414 Static void 1415 athn_usb_ampdu_tx_start_cb(struct athn_usb_softc *usc, void *arg) 1416 { 1417 struct athn_usb_aggr_cmd *cmd = arg; 1418 struct ar_htc_target_aggr aggr; 1419 1420 DPRINTFN(DBG_FN, usc, "\n"); 1421 1422 memset(&aggr, 0, sizeof(aggr)); 1423 aggr.sta_index = cmd->sta_index; 1424 aggr.tidno = cmd->tid; 1425 aggr.aggr_enable = 1; 1426 (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_TX_AGGR_ENABLE, 1427 &aggr, sizeof(aggr), NULL); 1428 } 1429 1430 Static void 1431 athn_usb_ampdu_tx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, 1432 uint8_t tid) 1433 { 1434 struct athn_softc *sc = ic->ic_ifp->if_softc; 1435 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1436 struct athn_node *an = ATHN_NODE(ni); 1437 struct athn_usb_aggr_cmd cmd; 1438 1439 DPRINTFN(DBG_FN, sc, "\n"); 1440 1441 /* Do it in a process context. */ 1442 cmd.sta_index = an->sta_index; 1443 cmd.tid = tid; 1444 athn_usb_do_async(usc, athn_usb_ampdu_tx_stop_cb, &cmd, sizeof(cmd)); 1445 } 1446 1447 Static void 1448 athn_usb_ampdu_tx_stop_cb(struct athn_usb_softc *usc, void *arg) 1449 { 1450 struct athn_usb_aggr_cmd *cmd = arg; 1451 struct ar_htc_target_aggr aggr; 1452 1453 DPRINTFN(DBG_FN, usc, "\n"); 1454 1455 memset(&aggr, 0, sizeof(aggr)); 1456 aggr.sta_index = cmd->sta_index; 1457 aggr.tidno = cmd->tid; 1458 aggr.aggr_enable = 0; 1459 (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_TX_AGGR_ENABLE, 1460 &aggr, sizeof(aggr), NULL); 1461 } 1462 #endif /* notyet */ 1463 1464 Static int 1465 athn_usb_remove_hw_node(struct athn_usb_softc *usc, uint8_t *sta_idx) 1466 { 1467 int error; 1468 1469 DPRINTFN(DBG_FN, usc, "\n"); 1470 1471 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_NODE_REMOVE, 1472 sta_idx, sizeof(*sta_idx), NULL); 1473 1474 DPRINTFN(DBG_NODES, usc, "node=%u error=%d\n", 1475 *sta_idx, error); 1476 return error; 1477 } 1478 1479 Static int 1480 athn_usb_create_hw_node(struct athn_usb_softc *usc, 1481 struct ar_htc_target_sta *sta) 1482 { 1483 int error; 1484 1485 DPRINTFN(DBG_FN, usc, "\n"); 1486 1487 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_NODE_CREATE, 1488 sta, sizeof(*sta), NULL); 1489 1490 DPRINTFN(DBG_NODES, usc, "node=%u error=%d\n", 1491 sta->sta_index, error); 1492 1493 return error; 1494 } 1495 1496 Static int 1497 athn_usb_create_node(struct athn_usb_softc *usc, struct ieee80211_node *ni) 1498 { 1499 struct athn_node *an = ATHN_NODE(ni); 1500 struct ar_htc_target_sta sta; 1501 struct ar_htc_target_rate rate; 1502 int error; 1503 1504 DPRINTFN(DBG_FN | DBG_NODES, usc, "AID=0x%x\n", ni->ni_associd); 1505 1506 /* 1507 * NB: this is called by ic_newstate and (in HOSTAP mode by) 1508 * ic_newassoc. 1509 * 1510 * The firmware has a limit of 8 nodes. In HOSTAP mode, we 1511 * limit the AID to < 8 and use that value to index the 1512 * firmware node table. Node zero is used for the BSS. 1513 * 1514 * In STA mode, we simply use node 1 for the BSS. 1515 */ 1516 if (ATHN_SOFTC(usc)->sc_ic.ic_opmode == IEEE80211_M_HOSTAP) 1517 an->sta_index = IEEE80211_NODE_AID(ni); 1518 else 1519 an->sta_index = 1; 1520 1521 /* Create node entry on target. */ 1522 memset(&sta, 0, sizeof(sta)); 1523 IEEE80211_ADDR_COPY(sta.macaddr, ni->ni_macaddr); 1524 IEEE80211_ADDR_COPY(sta.bssid, ni->ni_bssid); 1525 1526 sta.associd = htobe16(ni->ni_associd); 1527 sta.valid = 1; 1528 sta.sta_index = an->sta_index; 1529 1530 sta.maxampdu = 0xffff; 1531 #ifndef IEEE80211_NO_HT 1532 if (ni->ni_flags & IEEE80211_NODE_HT) 1533 sta.flags |= htobe16(AR_HTC_STA_HT); 1534 #endif 1535 error = athn_usb_create_hw_node(usc, &sta); 1536 if (error) 1537 return error; 1538 1539 /* Setup supported rates. */ 1540 memset(&rate, 0, sizeof(rate)); 1541 rate.sta_index = sta.sta_index; 1542 rate.isnew = 1; 1543 rate.lg_rates.rs_nrates = ni->ni_rates.rs_nrates; 1544 memcpy(rate.lg_rates.rs_rates, ni->ni_rates.rs_rates, 1545 ni->ni_rates.rs_nrates); 1546 1547 #ifndef IEEE80211_NO_HT 1548 if (ni->ni_flags & IEEE80211_NODE_HT) { 1549 rate.capflags |= htobe32(AR_RC_HT_FLAG); 1550 #ifdef notyet 1551 /* XXX setup HT rates */ 1552 if (ni->ni_htcaps & IEEE80211_HTCAP_CBW20_40) 1553 rate.capflags |= htobe32(AR_RC_40_FLAG); 1554 if (ni->ni_htcaps & IEEE80211_HTCAP_SGI40) 1555 rate.capflags |= htobe32(AR_RC_SGI_FLAG); 1556 if (ni->ni_htcaps & IEEE80211_HTCAP_SGI20) 1557 rate.capflags |= htobe32(AR_RC_SGI_FLAG); 1558 #endif 1559 } 1560 #endif 1561 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_RC_RATE_UPDATE, 1562 &rate, sizeof(rate), NULL); 1563 return error; 1564 } 1565 1566 Static void 1567 athn_usb_rx_enable(struct athn_softc *sc) 1568 { 1569 1570 DPRINTFN(DBG_FN, sc, "\n"); 1571 1572 AR_WRITE(sc, AR_CR, AR_CR_RXE); 1573 AR_WRITE_BARRIER(sc); 1574 } 1575 1576 Static int 1577 athn_usb_switch_chan(struct athn_softc *sc, struct ieee80211_channel *curchan, 1578 struct ieee80211_channel *extchan) 1579 { 1580 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1581 uint16_t mode; 1582 int error; 1583 1584 DPRINTFN(DBG_FN, sc, "\n"); 1585 1586 /* Disable interrupts. */ 1587 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_DISABLE_INTR); 1588 if (error != 0) 1589 goto reset; 1590 /* Stop all Tx queues. */ 1591 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_DRAIN_TXQ_ALL); 1592 if (error != 0) 1593 goto reset; 1594 /* Stop Rx. */ 1595 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_STOP_RECV); 1596 if (error != 0) 1597 goto reset; 1598 1599 /* If band or bandwidth changes, we need to do a full reset. */ 1600 if (curchan->ic_flags != sc->sc_curchan->ic_flags || 1601 ((extchan != NULL) ^ (sc->sc_curchanext != NULL))) { 1602 DPRINTFN(DBG_RF, sc, "channel band switch\n"); 1603 goto reset; 1604 } 1605 1606 error = athn_set_chan(sc, curchan, extchan); 1607 if (AR_SREV_9271(sc) && error == 0) 1608 ar9271_load_ani(sc); 1609 if (error != 0) { 1610 reset: /* Error found, try a full reset. */ 1611 DPRINTFN(DBG_RF, sc, "needs a full reset\n"); 1612 error = athn_hw_reset(sc, curchan, extchan, 0); 1613 if (error != 0) /* Hopeless case. */ 1614 return error; 1615 } 1616 1617 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_START_RECV); 1618 if (error != 0) 1619 return error; 1620 athn_rx_start(sc); 1621 1622 mode = htobe16(IEEE80211_IS_CHAN_2GHZ(curchan) ? 1623 AR_HTC_MODE_11NG : AR_HTC_MODE_11NA); 1624 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_SET_MODE, 1625 &mode, sizeof(mode), NULL); 1626 if (error != 0) 1627 return error; 1628 1629 /* Re-enable interrupts. */ 1630 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_ENABLE_INTR); 1631 return error; 1632 } 1633 1634 #ifdef notyet_edca 1635 Static void 1636 athn_usb_updateedca(struct ieee80211com *ic) 1637 { 1638 struct athn_softc *sc = ic->ic_ifp->if_softc; 1639 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1640 1641 DPRINTFN(DBG_FN, sc, "\n"); 1642 1643 /* Do it in a process context. */ 1644 athn_usb_do_async(usc, athn_usb_updateedca_cb, NULL, 0); 1645 } 1646 1647 Static void 1648 athn_usb_updateedca_cb(struct athn_usb_softc *usc, void *arg) 1649 { 1650 int s; 1651 1652 DPRINTFN(DBG_FN, usc, "\n"); 1653 1654 s = splnet(); 1655 athn_updateedca(&usc->usc_sc.sc_ic); 1656 splx(s); 1657 } 1658 #endif /* notyet_edca */ 1659 1660 Static void 1661 athn_usb_updateslot(struct ifnet *ifp) 1662 { 1663 struct athn_softc *sc = ifp->if_softc; 1664 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1665 1666 DPRINTFN(DBG_FN, sc, "\n"); 1667 1668 /* 1669 * NB: athn_updateslog() needs to be done in a process context 1670 * to avoid being called by ieee80211_reset_erp() inside a 1671 * spinlock held by ieee80211_free_allnodes(). 1672 * 1673 * XXX: calling this during the athn_attach() causes 1674 * usb_insert_transfer() to produce a bunch of "not busy" 1675 * messages. Why? 1676 */ 1677 if (usc->usc_athn_attached) 1678 athn_usb_do_async(usc, athn_usb_updateslot_cb, NULL, 0); 1679 } 1680 1681 Static void 1682 athn_usb_updateslot_cb(struct athn_usb_softc *usc, void *arg) 1683 { 1684 int s; 1685 1686 DPRINTFN(DBG_FN, usc, "\n"); 1687 1688 s = splnet(); 1689 athn_updateslot(&usc->usc_sc.sc_if); 1690 splx(s); 1691 } 1692 1693 #ifdef notyet 1694 Static int 1695 athn_usb_set_key(struct ieee80211com *ic, struct ieee80211_node *ni, 1696 struct ieee80211_key *k) 1697 { 1698 struct athn_softc *sc = ic->ic_ifp->if_softc; 1699 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1700 struct ifnet *ifp = &usc->usc_sc.sc_if; 1701 struct athn_usb_cmd_key cmd; 1702 1703 DPRINTFN(DBG_FN, sc, "\n"); 1704 1705 /* Defer setting of WEP keys until interface is brought up. */ 1706 if (!IS_UP_AND_RUNNING(ifp)) 1707 return 0; 1708 1709 /* Do it in a process context. */ 1710 cmd.ni = (ni != NULL) ? ieee80211_ref_node(ni) : NULL; 1711 cmd.key = k; 1712 athn_usb_do_async(usc, athn_usb_set_key_cb, &cmd, sizeof(cmd)); 1713 return 0; 1714 } 1715 1716 Static void 1717 athn_usb_set_key_cb(struct athn_usb_softc *usc, void *arg) 1718 { 1719 struct ieee80211com *ic = &usc->usc_sc.sc_ic; 1720 struct athn_usb_cmd_key *cmd = arg; 1721 int s; 1722 1723 DPRINTFN(DBG_FN, usc, "\n"); 1724 1725 s = splnet(); 1726 athn_set_key(ic, cmd->ni, cmd->key); 1727 if (cmd->ni != NULL) 1728 ieee80211_free_node(cmd->ni); 1729 splx(s); 1730 } 1731 1732 Static void 1733 athn_usb_delete_key(struct ieee80211com *ic, struct ieee80211_node *ni, 1734 struct ieee80211_key *k) 1735 { 1736 struct athn_softc *sc = ic->ic_ifp->if_softc; 1737 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 1738 struct ifnet *ifp = &usc->usc_sc.sc_if; 1739 struct athn_usb_cmd_key cmd; 1740 1741 DPRINTFN(DBG_FN, sc, "\n"); 1742 1743 if (!(ifp->if_flags & IFF_RUNNING) || 1744 ic->ic_state != IEEE80211_S_RUN) 1745 return; /* Nothing to do. */ 1746 1747 /* Do it in a process context. */ 1748 cmd.ni = (ni != NULL) ? ieee80211_ref_node(ni) : NULL; 1749 cmd.key = k; 1750 athn_usb_do_async(usc, athn_usb_delete_key_cb, &cmd, sizeof(cmd)); 1751 } 1752 1753 Static void 1754 athn_usb_delete_key_cb(struct athn_usb_softc *usc, void *arg) 1755 { 1756 struct ieee80211com *ic = &usc->usc_sc.sc_ic; 1757 struct athn_usb_cmd_key *cmd = arg; 1758 int s; 1759 1760 DPRINTFN(DBG_FN, usc, "\n"); 1761 1762 s = splnet(); 1763 athn_delete_key(ic, cmd->ni, cmd->key); 1764 if (cmd->ni != NULL) 1765 ieee80211_free_node(cmd->ni); 1766 splx(s); 1767 } 1768 #endif /* notyet */ 1769 1770 #ifndef IEEE80211_STA_ONLY 1771 Static void 1772 athn_usb_bcneof(struct usbd_xfer *xfer, void * priv, 1773 usbd_status status) 1774 { 1775 struct athn_usb_tx_data *data = priv; 1776 struct athn_usb_softc *usc = data->sc; 1777 1778 DPRINTFN(DBG_FN, usc, "\n"); 1779 1780 if (__predict_false(status == USBD_STALLED)) 1781 usbd_clear_endpoint_stall_async(usc->usc_tx_data_pipe); 1782 usc->usc_tx_bcn = data; 1783 } 1784 1785 /* 1786 * Process Software Beacon Alert interrupts. 1787 */ 1788 Static void 1789 athn_usb_swba(struct athn_usb_softc *usc) 1790 { 1791 struct athn_softc *sc = &usc->usc_sc; 1792 struct ieee80211com *ic = &sc->sc_ic; 1793 struct athn_usb_tx_data *data; 1794 struct ieee80211_frame *wh; 1795 struct ieee80211_beacon_offsets bo; 1796 struct ar_stream_hdr *hdr; 1797 struct ar_htc_frame_hdr *htc; 1798 struct ar_tx_bcn *bcn; 1799 struct mbuf *m; 1800 int error; 1801 1802 if (usc->usc_dying) 1803 return; 1804 1805 DPRINTFN(DBG_FN, sc, "\n"); 1806 1807 if (ic->ic_dtim_count == 0) 1808 ic->ic_dtim_count = ic->ic_dtim_period - 1; 1809 else 1810 ic->ic_dtim_count--; 1811 1812 /* Make sure previous beacon has been sent. */ 1813 if (usc->usc_tx_bcn == NULL) 1814 return; 1815 data = usc->usc_tx_bcn; 1816 1817 /* Get new beacon. */ 1818 #ifdef ATHN_DEBUG 1819 memset(&bo, 0, sizeof(bo)); 1820 #endif 1821 m = ieee80211_beacon_alloc(ic, ic->ic_bss, &bo); 1822 if (__predict_false(m == NULL)) 1823 return; 1824 /* Assign sequence number. */ 1825 /* XXX: use non-QoS tid? */ 1826 wh = mtod(m, struct ieee80211_frame *); 1827 *(uint16_t *)&wh->i_seq[0] = 1828 htole16(ic->ic_bss->ni_txseqs[0] << IEEE80211_SEQ_SEQ_SHIFT); 1829 ic->ic_bss->ni_txseqs[0]++; 1830 1831 hdr = (struct ar_stream_hdr *)data->buf; 1832 hdr->tag = htole16(AR_USB_TX_STREAM_TAG); 1833 hdr->len = htole16(sizeof(*htc) + sizeof(*bcn) + m->m_pkthdr.len); 1834 1835 htc = (struct ar_htc_frame_hdr *)&hdr[1]; 1836 memset(htc, 0, sizeof(*htc)); 1837 htc->endpoint_id = usc->usc_ep_bcn; 1838 htc->payload_len = htobe16(sizeof(*bcn) + m->m_pkthdr.len); 1839 1840 bcn = (struct ar_tx_bcn *)&htc[1]; 1841 memset(bcn, 0, sizeof(*bcn)); 1842 bcn->vif_idx = 0; 1843 1844 m_copydata(m, 0, m->m_pkthdr.len, (void *)&bcn[1]); 1845 1846 usbd_setup_xfer(data->xfer, data, data->buf, 1847 sizeof(*hdr) + sizeof(*htc) + sizeof(*bcn) + m->m_pkthdr.len, 1848 USBD_SHORT_XFER_OK, ATHN_USB_TX_TIMEOUT, 1849 athn_usb_bcneof); 1850 1851 m_freem(m); 1852 usc->usc_tx_bcn = NULL; 1853 error = usbd_transfer(data->xfer); 1854 if (__predict_false(error != USBD_IN_PROGRESS && error != 0)) 1855 usc->usc_tx_bcn = data; 1856 } 1857 #endif 1858 1859 Static void 1860 athn_usb_rx_wmi_ctrl(struct athn_usb_softc *usc, uint8_t *buf, size_t len) 1861 { 1862 #ifdef ATHN_DEBUG 1863 struct ar_wmi_evt_txrate *txrate; 1864 #endif 1865 struct ar_wmi_cmd_hdr *wmi; 1866 uint16_t cmd_id; 1867 1868 if (usc->usc_dying) 1869 return; 1870 1871 DPRINTFN(DBG_FN, usc, "\n"); 1872 1873 if (__predict_false(len < sizeof(*wmi))) 1874 return; 1875 wmi = (struct ar_wmi_cmd_hdr *)buf; 1876 cmd_id = be16toh(wmi->cmd_id); 1877 1878 if (!(cmd_id & AR_WMI_EVT_FLAG)) { 1879 if (usc->usc_wait_cmd_id != cmd_id) 1880 return; /* Unexpected reply. */ 1881 if (usc->usc_obuf != NULL) { 1882 /* Copy answer into caller supplied buffer. */ 1883 memcpy(usc->usc_obuf, &wmi[1], len - sizeof(*wmi)); 1884 } 1885 /* Notify caller of completion. */ 1886 usc->usc_wait_cmd_id = 0; 1887 wakeup(&usc->usc_wait_cmd_id); 1888 return; 1889 } 1890 /* 1891 * XXX: the Linux 2.6 and 3.7.4 kernels differ on the event numbers! 1892 * See the alternate defines in if_athn_usb.h. 1893 */ 1894 switch (cmd_id & 0xfff) { 1895 #ifndef IEEE80211_STA_ONLY 1896 case AR_WMI_EVT_SWBA: 1897 athn_usb_swba(usc); 1898 break; 1899 #endif 1900 case AR_WMI_EVT_FATAL: 1901 aprint_error_dev(usc->usc_dev, "fatal firmware error\n"); 1902 break; 1903 case AR_WMI_EVT_TXRATE: 1904 #ifdef ATHN_DEBUG 1905 txrate = (struct ar_wmi_evt_txrate *)&wmi[1]; 1906 DPRINTFN(DBG_TX, usc, "txrate=%d\n", be32toh(txrate->txrate)); 1907 #endif 1908 break; 1909 default: 1910 DPRINTFN(DBG_TX, usc, "WMI event 0x%x (%d) ignored\n", cmd_id, cmd_id); 1911 break; 1912 } 1913 } 1914 1915 Static void 1916 athn_usb_intr(struct usbd_xfer *xfer, void * priv, 1917 usbd_status status) 1918 { 1919 struct athn_usb_softc *usc = priv; 1920 struct ar_htc_frame_hdr *htc; 1921 struct ar_htc_msg_hdr *msg; 1922 uint8_t *buf = usc->usc_ibuf; 1923 uint16_t msg_id; 1924 int len; 1925 1926 if (usc->usc_dying) 1927 return; 1928 1929 DPRINTFN(DBG_FN, usc, "\n"); 1930 1931 if (__predict_false(status != USBD_NORMAL_COMPLETION)) { 1932 DPRINTFN(DBG_INTR, usc, "intr status=%d\n", status); 1933 if (status == USBD_STALLED) 1934 usbd_clear_endpoint_stall_async(usc->usc_rx_intr_pipe); 1935 return; 1936 } 1937 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 1938 1939 /* Skip watchdog pattern if present. */ 1940 if (len >= 4 && *(uint32_t *)buf == htobe32(0x00c60000)) { 1941 buf += 4; 1942 len -= 4; 1943 } 1944 if (__predict_false(len < (int)sizeof(*htc))) 1945 return; 1946 htc = (struct ar_htc_frame_hdr *)buf; 1947 /* Skip HTC header. */ 1948 buf += sizeof(*htc); 1949 len -= sizeof(*htc); 1950 1951 if (htc->endpoint_id != 0) { 1952 if (__predict_false(htc->endpoint_id != usc->usc_ep_ctrl)) 1953 return; 1954 /* Remove trailer if present. */ 1955 if (htc->flags & AR_HTC_FLAG_TRAILER) { 1956 if (__predict_false(len < htc->control[0])) 1957 return; 1958 len -= htc->control[0]; 1959 } 1960 athn_usb_rx_wmi_ctrl(usc, buf, len); 1961 return; 1962 } 1963 1964 /* 1965 * Endpoint 0 carries HTC messages. 1966 */ 1967 if (__predict_false(len < (int)sizeof(*msg))) 1968 return; 1969 msg = (struct ar_htc_msg_hdr *)buf; 1970 msg_id = be16toh(msg->msg_id); 1971 DPRINTFN(DBG_RX, usc, "Rx HTC message %d\n", msg_id); 1972 switch (msg_id) { 1973 case AR_HTC_MSG_READY: 1974 case AR_HTC_MSG_CONF_PIPE_RSP: 1975 if (usc->usc_wait_msg_id != msg_id) 1976 break; 1977 usc->usc_wait_msg_id = 0; 1978 wakeup(&usc->usc_wait_msg_id); 1979 break; 1980 case AR_HTC_MSG_CONN_SVC_RSP: 1981 if (usc->usc_wait_msg_id != msg_id) 1982 break; 1983 if (usc->usc_msg_conn_svc_rsp != NULL) { 1984 memcpy(usc->usc_msg_conn_svc_rsp, &msg[1], 1985 sizeof(*usc->usc_msg_conn_svc_rsp)); 1986 } 1987 usc->usc_wait_msg_id = 0; 1988 wakeup(&usc->usc_wait_msg_id); 1989 break; 1990 default: 1991 DPRINTFN(DBG_RX, usc, "HTC message %d ignored\n", msg_id); 1992 break; 1993 } 1994 } 1995 1996 Static void 1997 athn_usb_rx_radiotap(struct athn_softc *sc, struct mbuf *m, 1998 struct ar_rx_status *rs) 1999 { 2000 struct athn_rx_radiotap_header *tap = &sc->sc_rxtap; 2001 struct ieee80211com *ic = &sc->sc_ic; 2002 uint8_t rate; 2003 2004 DPRINTFN(DBG_FN, sc, "\n"); 2005 2006 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 2007 tap->wr_tsft = htole64(be64toh(rs->rs_tstamp)); 2008 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 2009 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 2010 tap->wr_dbm_antsignal = rs->rs_rssi; 2011 /* XXX noise. */ 2012 tap->wr_antenna = rs->rs_antenna; 2013 rate = rs->rs_rate; 2014 if (rate & 0x80) { /* HT. */ 2015 /* Bit 7 set means HT MCS instead of rate. */ 2016 tap->wr_rate = rate; 2017 if (!(rs->rs_flags & AR_RXS_FLAG_GI)) 2018 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 2019 } 2020 else if (rate & 0x10) { /* CCK. */ 2021 if (rate & 0x04) 2022 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 2023 switch (rate & ~0x14) { 2024 case 0xb: tap->wr_rate = 2; break; 2025 case 0xa: tap->wr_rate = 4; break; 2026 case 0x9: tap->wr_rate = 11; break; 2027 case 0x8: tap->wr_rate = 22; break; 2028 default: tap->wr_rate = 0; break; 2029 } 2030 } 2031 else { /* OFDM. */ 2032 switch (rate) { 2033 case 0xb: tap->wr_rate = 12; break; 2034 case 0xf: tap->wr_rate = 18; break; 2035 case 0xa: tap->wr_rate = 24; break; 2036 case 0xe: tap->wr_rate = 36; break; 2037 case 0x9: tap->wr_rate = 48; break; 2038 case 0xd: tap->wr_rate = 72; break; 2039 case 0x8: tap->wr_rate = 96; break; 2040 case 0xc: tap->wr_rate = 108; break; 2041 default: tap->wr_rate = 0; break; 2042 } 2043 } 2044 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 2045 } 2046 2047 Static void 2048 athn_usb_rx_frame(struct athn_usb_softc *usc, struct mbuf *m) 2049 { 2050 struct athn_softc *sc = &usc->usc_sc; 2051 struct ieee80211com *ic = &sc->sc_ic; 2052 struct ifnet *ifp = &sc->sc_if; 2053 struct ieee80211_frame *wh; 2054 struct ieee80211_node *ni; 2055 struct ar_htc_frame_hdr *htc; 2056 struct ar_rx_status *rs; 2057 uint16_t datalen; 2058 int s; 2059 2060 DPRINTFN(DBG_FN, sc, "\n"); 2061 2062 if (__predict_false(m->m_len < (int)sizeof(*htc))) 2063 goto skip; 2064 htc = mtod(m, struct ar_htc_frame_hdr *); 2065 if (__predict_false(htc->endpoint_id == 0)) { 2066 DPRINTFN(DBG_RX, sc, "bad endpoint %d\n", htc->endpoint_id); 2067 goto skip; 2068 } 2069 if (htc->flags & AR_HTC_FLAG_TRAILER) { 2070 if (m->m_len < htc->control[0]) 2071 goto skip; 2072 m_adj(m, -(int)htc->control[0]); 2073 } 2074 m_adj(m, sizeof(*htc)); /* Strip HTC header. */ 2075 2076 if (__predict_false(m->m_len < (int)sizeof(*rs))) 2077 goto skip; 2078 rs = mtod(m, struct ar_rx_status *); 2079 2080 /* Make sure that payload fits. */ 2081 datalen = be16toh(rs->rs_datalen); 2082 if (__predict_false(m->m_len < (int)sizeof(*rs) + datalen)) 2083 goto skip; 2084 2085 /* Ignore runt frames. Let ACKs be seen by bpf */ 2086 if (__predict_false(datalen < 2087 sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)) 2088 goto skip; 2089 2090 m_adj(m, sizeof(*rs)); /* Strip Rx status. */ 2091 m_set_rcvif(m, ifp); 2092 2093 s = splnet(); 2094 2095 /* Grab a reference to the source node. */ 2096 wh = mtod(m, struct ieee80211_frame *); 2097 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 2098 2099 /* Remove any HW padding after the 802.11 header. */ 2100 if (!(wh->i_fc[0] & IEEE80211_FC0_TYPE_CTL)) { 2101 u_int hdrlen = ieee80211_anyhdrsize(wh); 2102 if (hdrlen & 3) { 2103 ovbcopy(wh, (uint8_t *)wh + 2, hdrlen); 2104 m_adj(m, 2); 2105 } 2106 } 2107 if (__predict_false(sc->sc_drvbpf != NULL)) 2108 athn_usb_rx_radiotap(sc, m, rs); 2109 2110 /* Trim 802.11 FCS after radiotap. */ 2111 m_adj(m, -IEEE80211_CRC_LEN); 2112 2113 /* Send the frame to the 802.11 layer. */ 2114 ieee80211_input(ic, m, ni, rs->rs_rssi + AR_USB_DEFAULT_NF, 0); 2115 2116 /* Node is no longer needed. */ 2117 ieee80211_free_node(ni); 2118 splx(s); 2119 return; 2120 skip: 2121 m_freem(m); 2122 } 2123 2124 Static void 2125 athn_usb_rxeof(struct usbd_xfer *xfer, void * priv, 2126 usbd_status status) 2127 { 2128 struct athn_usb_rx_data *data = priv; 2129 struct athn_usb_softc *usc = data->sc; 2130 struct athn_usb_rx_stream *stream = &usc->usc_rx_stream; 2131 uint8_t *buf = data->buf; 2132 struct ar_stream_hdr *hdr; 2133 struct mbuf *m; 2134 uint16_t pktlen; 2135 int off, len; 2136 2137 if (usc->usc_dying) 2138 return; 2139 2140 DPRINTFN(DBG_FN, usc, "\n"); 2141 2142 if (__predict_false(status != USBD_NORMAL_COMPLETION)) { 2143 DPRINTFN(DBG_RX, usc, "RX status=%d\n", status); 2144 if (status == USBD_STALLED) 2145 usbd_clear_endpoint_stall_async(usc->usc_rx_data_pipe); 2146 if (status != USBD_CANCELLED) 2147 goto resubmit; 2148 return; 2149 } 2150 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 2151 2152 if (stream->left > 0) { 2153 if (len >= stream->left) { 2154 /* We have all our pktlen bytes now. */ 2155 if (__predict_true(stream->m != NULL)) { 2156 memcpy(mtod(stream->m, uint8_t *) + 2157 stream->moff, buf, stream->left); 2158 athn_usb_rx_frame(usc, stream->m); 2159 stream->m = NULL; 2160 } 2161 /* Next header is 32-bit aligned. */ 2162 off = (stream->left + 3) & ~3; 2163 buf += off; 2164 len -= off; 2165 stream->left = 0; 2166 } 2167 else { 2168 /* Still need more bytes, save what we have. */ 2169 if (__predict_true(stream->m != NULL)) { 2170 memcpy(mtod(stream->m, uint8_t *) + 2171 stream->moff, buf, len); 2172 stream->moff += len; 2173 } 2174 stream->left -= len; 2175 goto resubmit; 2176 } 2177 } 2178 KASSERT(stream->left == 0); 2179 while (len >= (int)sizeof(*hdr)) { 2180 hdr = (struct ar_stream_hdr *)buf; 2181 if (hdr->tag != htole16(AR_USB_RX_STREAM_TAG)) { 2182 DPRINTFN(DBG_RX, usc, "invalid tag 0x%x\n", hdr->tag); 2183 break; 2184 } 2185 pktlen = le16toh(hdr->len); 2186 buf += sizeof(*hdr); 2187 len -= sizeof(*hdr); 2188 2189 if (__predict_true(pktlen <= MCLBYTES)) { 2190 /* Allocate an mbuf to store the next pktlen bytes. */ 2191 MGETHDR(m, M_DONTWAIT, MT_DATA); 2192 if (__predict_true(m != NULL)) { 2193 m->m_pkthdr.len = m->m_len = pktlen; 2194 if (pktlen > MHLEN) { 2195 MCLGET(m, M_DONTWAIT); 2196 if (!(m->m_flags & M_EXT)) { 2197 m_free(m); 2198 m = NULL; 2199 } 2200 } 2201 } 2202 } 2203 else /* Drop frames larger than MCLBYTES. */ 2204 m = NULL; 2205 /* 2206 * NB: m can be NULL, in which case the next pktlen bytes 2207 * will be discarded from the Rx stream. 2208 */ 2209 if (pktlen > len) { 2210 /* Need more bytes, save what we have. */ 2211 stream->m = m; /* NB: m can be NULL. */ 2212 if (__predict_true(stream->m != NULL)) { 2213 memcpy(mtod(stream->m, uint8_t *), buf, len); 2214 stream->moff = len; 2215 } 2216 stream->left = pktlen - len; 2217 goto resubmit; 2218 } 2219 if (__predict_true(m != NULL)) { 2220 /* We have all the pktlen bytes in this xfer. */ 2221 memcpy(mtod(m, uint8_t *), buf, pktlen); 2222 athn_usb_rx_frame(usc, m); 2223 } 2224 2225 /* Next header is 32-bit aligned. */ 2226 off = (pktlen + 3) & ~3; 2227 buf += off; 2228 len -= off; 2229 } 2230 2231 resubmit: 2232 /* Setup a new transfer. */ 2233 usbd_setup_xfer(xfer, data, data->buf, ATHN_USB_RXBUFSZ, 2234 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, athn_usb_rxeof); 2235 (void)usbd_transfer(xfer); 2236 } 2237 2238 Static void 2239 athn_usb_txeof(struct usbd_xfer *xfer, void * priv, 2240 usbd_status status) 2241 { 2242 struct athn_usb_tx_data *data = priv; 2243 struct athn_usb_softc *usc = data->sc; 2244 struct athn_softc *sc = &usc->usc_sc; 2245 struct ifnet *ifp = &sc->sc_if; 2246 int s; 2247 2248 if (usc->usc_dying) 2249 return; 2250 2251 DPRINTFN(DBG_FN, usc, "\n"); 2252 2253 s = splnet(); 2254 /* Put this Tx buffer back to our free list. */ 2255 mutex_enter(&usc->usc_tx_mtx); 2256 TAILQ_INSERT_TAIL(&usc->usc_tx_free_list, data, next); 2257 mutex_exit(&usc->usc_tx_mtx); 2258 2259 if (__predict_false(status != USBD_NORMAL_COMPLETION)) { 2260 DPRINTFN(DBG_TX, sc, "TX status=%d\n", status); 2261 if (status == USBD_STALLED) 2262 usbd_clear_endpoint_stall_async(usc->usc_tx_data_pipe); 2263 ifp->if_oerrors++; 2264 splx(s); 2265 /* XXX Why return? */ 2266 return; 2267 } 2268 sc->sc_tx_timer = 0; 2269 ifp->if_opackets++; 2270 2271 /* We just released a Tx buffer, notify Tx. */ 2272 if (ifp->if_flags & IFF_OACTIVE) { 2273 ifp->if_flags &= ~IFF_OACTIVE; 2274 ifp->if_start(ifp); 2275 } 2276 splx(s); 2277 } 2278 2279 Static int 2280 athn_usb_tx(struct athn_softc *sc, struct mbuf *m, struct ieee80211_node *ni, 2281 struct athn_usb_tx_data *data) 2282 { 2283 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 2284 struct athn_node *an = ATHN_NODE(ni); 2285 struct ieee80211com *ic = &sc->sc_ic; 2286 struct ieee80211_frame *wh; 2287 struct ieee80211_key *k = NULL; 2288 struct ar_stream_hdr *hdr; 2289 struct ar_htc_frame_hdr *htc; 2290 struct ar_tx_frame *txf; 2291 struct ar_tx_mgmt *txm; 2292 uint8_t *frm; 2293 uint8_t sta_index, qid, tid; 2294 int error, s, xferlen; 2295 2296 DPRINTFN(DBG_FN, sc, "\n"); 2297 2298 wh = mtod(m, struct ieee80211_frame *); 2299 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2300 k = ieee80211_crypto_encap(ic, ni, m); 2301 if (k == NULL) 2302 return ENOBUFS; 2303 2304 /* packet header may have moved, reset our local pointer */ 2305 wh = mtod(m, struct ieee80211_frame *); 2306 } 2307 #ifdef notyet_edca 2308 if (ieee80211_has_qos(wh)) { 2309 uint16_t qos; 2310 2311 qos = ieee80211_get_qos(wh); 2312 tid = qos & IEEE80211_QOS_TID; 2313 qid = ieee80211_up_to_ac(ic, tid); 2314 } 2315 else 2316 #endif /* notyet_edca */ 2317 { 2318 tid = 0; 2319 qid = WME_AC_BE; 2320 } 2321 2322 /* XXX Change radiotap Tx header for USB (no txrate). */ 2323 if (__predict_false(sc->sc_drvbpf != NULL)) { 2324 struct athn_tx_radiotap_header *tap = &sc->sc_txtap; 2325 2326 tap->wt_flags = 0; 2327 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 2328 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 2329 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) 2330 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2331 2332 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m); 2333 } 2334 sta_index = an->sta_index; 2335 2336 /* NB: We don't take advantage of USB Tx stream mode for now. */ 2337 hdr = (struct ar_stream_hdr *)data->buf; 2338 hdr->tag = htole16(AR_USB_TX_STREAM_TAG); 2339 2340 htc = (struct ar_htc_frame_hdr *)&hdr[1]; 2341 memset(htc, 0, sizeof(*htc)); 2342 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 2343 IEEE80211_FC0_TYPE_DATA) { 2344 htc->endpoint_id = usc->usc_ep_data[qid]; 2345 2346 txf = (struct ar_tx_frame *)&htc[1]; 2347 memset(txf, 0, sizeof(*txf)); 2348 txf->data_type = AR_HTC_NORMAL; 2349 txf->node_idx = sta_index; 2350 txf->vif_idx = 0; 2351 txf->tid = tid; 2352 if (m->m_pkthdr.len + IEEE80211_CRC_LEN > ic->ic_rtsthreshold) 2353 txf->flags |= htobe32(AR_HTC_TX_RTSCTS); 2354 else if (ic->ic_flags & IEEE80211_F_USEPROT) { 2355 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 2356 txf->flags |= htobe32(AR_HTC_TX_CTSONLY); 2357 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 2358 txf->flags |= htobe32(AR_HTC_TX_RTSCTS); 2359 } 2360 txf->key_idx = 0xff; 2361 frm = (uint8_t *)&txf[1]; 2362 } 2363 else { 2364 htc->endpoint_id = usc->usc_ep_mgmt; 2365 2366 txm = (struct ar_tx_mgmt *)&htc[1]; 2367 memset(txm, 0, sizeof(*txm)); 2368 txm->node_idx = sta_index; 2369 txm->vif_idx = 0; 2370 txm->key_idx = 0xff; 2371 frm = (uint8_t *)&txm[1]; 2372 } 2373 /* Copy payload. */ 2374 m_copydata(m, 0, m->m_pkthdr.len, (void *)frm); 2375 frm += m->m_pkthdr.len; 2376 2377 /* Finalize headers. */ 2378 htc->payload_len = htobe16(frm - (uint8_t *)&htc[1]); 2379 hdr->len = htole16(frm - (uint8_t *)&hdr[1]); 2380 xferlen = frm - data->buf; 2381 2382 s = splnet(); 2383 usbd_setup_xfer(data->xfer, data, data->buf, xferlen, 2384 USBD_FORCE_SHORT_XFER, ATHN_USB_TX_TIMEOUT, athn_usb_txeof); 2385 error = usbd_transfer(data->xfer); 2386 if (__predict_false(error != USBD_IN_PROGRESS && error != 0)) { 2387 splx(s); 2388 return error; 2389 } 2390 splx(s); 2391 return 0; 2392 } 2393 2394 Static void 2395 athn_usb_start(struct ifnet *ifp) 2396 { 2397 struct athn_softc *sc = ifp->if_softc; 2398 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 2399 struct ieee80211com *ic = &sc->sc_ic; 2400 struct athn_usb_tx_data *data; 2401 struct ether_header *eh; 2402 struct ieee80211_node *ni; 2403 struct mbuf *m; 2404 2405 if (usc->usc_dying) 2406 return; 2407 2408 DPRINTFN(DBG_FN, sc, "\n"); 2409 2410 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 2411 return; 2412 2413 data = NULL; 2414 for (;;) { 2415 mutex_enter(&usc->usc_tx_mtx); 2416 if (data == NULL && !TAILQ_EMPTY(&usc->usc_tx_free_list)) { 2417 data = TAILQ_FIRST(&usc->usc_tx_free_list); 2418 TAILQ_REMOVE(&usc->usc_tx_free_list, data, next); 2419 } 2420 mutex_exit(&usc->usc_tx_mtx); 2421 2422 if (data == NULL) { 2423 ifp->if_flags |= IFF_OACTIVE; 2424 return; 2425 } 2426 2427 /* Send pending management frames first. */ 2428 IF_DEQUEUE(&ic->ic_mgtq, m); 2429 if (m != NULL) { 2430 ni = M_GETCTX(m, struct ieee80211_node *); 2431 M_CLEARCTX(m); 2432 goto sendit; 2433 } 2434 if (ic->ic_state != IEEE80211_S_RUN) 2435 break; 2436 2437 /* Encapsulate and send data frames. */ 2438 IFQ_DEQUEUE(&ifp->if_snd, m); 2439 if (m == NULL) 2440 break; 2441 2442 if (m->m_len < (int)sizeof(*eh) && 2443 (m = m_pullup(m, sizeof(*eh))) == NULL) { 2444 ifp->if_oerrors++; 2445 continue; 2446 } 2447 eh = mtod(m, struct ether_header *); 2448 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 2449 if (ni == NULL) { 2450 m_freem(m); 2451 ifp->if_oerrors++; 2452 continue; 2453 } 2454 2455 bpf_mtap(ifp, m); 2456 2457 if ((m = ieee80211_encap(ic, m, ni)) == NULL) { 2458 ieee80211_free_node(ni); 2459 ifp->if_oerrors++; 2460 continue; 2461 } 2462 sendit: 2463 bpf_mtap3(ic->ic_rawbpf, m); 2464 2465 if (athn_usb_tx(sc, m, ni, data) != 0) { 2466 m_freem(m); 2467 ieee80211_free_node(ni); 2468 ifp->if_oerrors++; 2469 continue; 2470 } 2471 data = NULL; 2472 m_freem(m); 2473 ieee80211_free_node(ni); 2474 sc->sc_tx_timer = 5; 2475 ifp->if_timer = 1; 2476 } 2477 2478 /* Return the Tx buffer to the free list */ 2479 mutex_enter(&usc->usc_tx_mtx); 2480 TAILQ_INSERT_TAIL(&usc->usc_tx_free_list, data, next); 2481 mutex_exit(&usc->usc_tx_mtx); 2482 } 2483 2484 Static void 2485 athn_usb_watchdog(struct ifnet *ifp) 2486 { 2487 struct athn_softc *sc = ifp->if_softc; 2488 2489 DPRINTFN(DBG_FN, sc, "\n"); 2490 2491 ifp->if_timer = 0; 2492 2493 if (sc->sc_tx_timer > 0) { 2494 if (--sc->sc_tx_timer == 0) { 2495 aprint_error_dev(sc->sc_dev, "device timeout\n"); 2496 /* athn_usb_init(ifp); XXX needs a process context! */ 2497 ifp->if_oerrors++; 2498 return; 2499 } 2500 ifp->if_timer = 1; 2501 } 2502 ieee80211_watchdog(&sc->sc_ic); 2503 } 2504 2505 Static int 2506 athn_usb_ioctl(struct ifnet *ifp, u_long cmd, void *data) 2507 { 2508 struct athn_softc *sc = ifp->if_softc; 2509 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 2510 struct ieee80211com *ic = &sc->sc_ic; 2511 int s, error = 0; 2512 2513 if (usc->usc_dying) 2514 return EIO; 2515 2516 DPRINTFN(DBG_FN, sc, "cmd=0x%08lx\n", cmd); 2517 2518 s = splnet(); 2519 2520 switch (cmd) { 2521 case SIOCSIFFLAGS: 2522 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 2523 break; 2524 2525 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 2526 case IFF_UP | IFF_RUNNING: 2527 break; 2528 case IFF_UP: 2529 error = athn_usb_init(ifp); 2530 break; 2531 case IFF_RUNNING: 2532 athn_usb_stop(ifp); 2533 break; 2534 case 0: 2535 default: 2536 break; 2537 } 2538 break; 2539 2540 case SIOCADDMULTI: 2541 case SIOCDELMULTI: 2542 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 2543 /* setup multicast filter, etc */ 2544 error = 0; 2545 } 2546 break; 2547 2548 case SIOCS80211CHANNEL: 2549 error = ieee80211_ioctl(ic, cmd, data); 2550 if (error == ENETRESET && 2551 ic->ic_opmode == IEEE80211_M_MONITOR) { 2552 if (IS_UP_AND_RUNNING(ifp)) 2553 athn_usb_switch_chan(sc, ic->ic_curchan, NULL); 2554 error = 0; 2555 } 2556 break; 2557 2558 default: 2559 error = ieee80211_ioctl(ic, cmd, data); 2560 break; 2561 } 2562 if (error == ENETRESET) { 2563 error = 0; 2564 if (IS_UP_AND_RUNNING(ifp) && 2565 ic->ic_roaming != IEEE80211_ROAMING_MANUAL) { 2566 athn_usb_stop(ifp); 2567 error = athn_usb_init(ifp); 2568 } 2569 } 2570 splx(s); 2571 return error; 2572 } 2573 2574 Static int 2575 athn_usb_init(struct ifnet *ifp) 2576 { 2577 struct athn_softc *sc = ifp->if_softc; 2578 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 2579 struct athn_ops *ops = &sc->sc_ops; 2580 struct ieee80211com *ic = &sc->sc_ic; 2581 struct ieee80211_channel *curchan, *extchan; 2582 struct athn_usb_rx_data *data; 2583 struct ar_htc_target_vif hvif; 2584 struct ar_htc_target_sta sta; 2585 struct ar_htc_cap_target hic; 2586 uint16_t mode; 2587 size_t i; 2588 int error; 2589 2590 if (usc->usc_dying) 2591 return USBD_CANCELLED; 2592 2593 DPRINTFN(DBG_FN, sc, "\n"); 2594 2595 /* Init host async commands ring. */ 2596 mutex_spin_enter(&usc->usc_task_mtx); 2597 usc->usc_cmdq.cur = usc->usc_cmdq.next = usc->usc_cmdq.queued = 0; 2598 mutex_spin_exit(&usc->usc_task_mtx); 2599 2600 /* Steal one buffer for beacons. */ 2601 mutex_enter(&usc->usc_tx_mtx); 2602 usc->usc_tx_bcn = TAILQ_FIRST(&usc->usc_tx_free_list); 2603 TAILQ_REMOVE(&usc->usc_tx_free_list, usc->usc_tx_bcn, next); 2604 mutex_exit(&usc->usc_tx_mtx); 2605 2606 curchan = ic->ic_curchan; 2607 extchan = NULL; 2608 2609 /* In case a new MAC address has been configured. */ 2610 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2611 2612 error = athn_set_power_awake(sc); 2613 if (error != 0) 2614 goto fail; 2615 2616 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_FLUSH_RECV); 2617 if (error != 0) 2618 goto fail; 2619 2620 error = athn_hw_reset(sc, curchan, extchan, 1); 2621 if (error != 0) 2622 goto fail; 2623 2624 ops->set_txpower(sc, curchan, extchan); 2625 2626 mode = htobe16(IEEE80211_IS_CHAN_2GHZ(curchan) ? 2627 AR_HTC_MODE_11NG : AR_HTC_MODE_11NA); 2628 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_SET_MODE, 2629 &mode, sizeof(mode), NULL); 2630 if (error != 0) 2631 goto fail; 2632 2633 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_ATH_INIT); 2634 if (error != 0) 2635 goto fail; 2636 2637 error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_START_RECV); 2638 if (error != 0) 2639 goto fail; 2640 2641 athn_rx_start(sc); 2642 2643 /* Create main interface on target. */ 2644 memset(&hvif, 0, sizeof(hvif)); 2645 hvif.index = 0; 2646 IEEE80211_ADDR_COPY(hvif.myaddr, ic->ic_myaddr); 2647 switch (ic->ic_opmode) { 2648 case IEEE80211_M_STA: 2649 hvif.opmode = htobe32(AR_HTC_M_STA); 2650 break; 2651 case IEEE80211_M_MONITOR: 2652 hvif.opmode = htobe32(AR_HTC_M_MONITOR); 2653 break; 2654 #ifndef IEEE80211_STA_ONLY 2655 case IEEE80211_M_IBSS: 2656 hvif.opmode = htobe32(AR_HTC_M_IBSS); 2657 break; 2658 case IEEE80211_M_AHDEMO: 2659 hvif.opmode = htobe32(AR_HTC_M_AHDEMO); 2660 break; 2661 case IEEE80211_M_HOSTAP: 2662 hvif.opmode = htobe32(AR_HTC_M_HOSTAP); 2663 break; 2664 #endif 2665 } 2666 hvif.rtsthreshold = htobe16(ic->ic_rtsthreshold); 2667 DPRINTFN(DBG_INIT, sc, "creating VAP\n"); 2668 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_VAP_CREATE, 2669 &hvif, sizeof(hvif), NULL); 2670 if (error != 0) 2671 goto fail; 2672 2673 /* Create a fake node to send management frames before assoc. */ 2674 memset(&sta, 0, sizeof(sta)); 2675 IEEE80211_ADDR_COPY(sta.macaddr, ic->ic_myaddr); 2676 sta.sta_index = 0; 2677 sta.is_vif_sta = 1; 2678 sta.vif_index = hvif.index; 2679 sta.maxampdu = 0xffff; 2680 2681 DPRINTFN(DBG_INIT | DBG_NODES, sc, "creating default node %u\n", 2682 sta.sta_index); 2683 error = athn_usb_create_hw_node(usc, &sta); 2684 if (error != 0) 2685 goto fail; 2686 2687 /* Update target capabilities. */ 2688 memset(&hic, 0, sizeof(hic)); 2689 hic.flags = htobe32(0x400c2400); 2690 hic.flags_ext = htobe32(0x00106080); 2691 hic.ampdu_limit = htobe32(0x0000ffff); 2692 hic.ampdu_subframes = 20; 2693 hic.protmode = 1; /* XXX */ 2694 hic.lg_txchainmask = sc->sc_txchainmask; 2695 hic.ht_txchainmask = sc->sc_txchainmask; 2696 DPRINTFN(DBG_INIT, sc, "updating target configuration\n"); 2697 error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_TARGET_IC_UPDATE, 2698 &hic, sizeof(hic), NULL); 2699 if (error != 0) 2700 goto fail; 2701 2702 /* Queue Rx xfers. */ 2703 for (i = 0; i < ATHN_USB_RX_LIST_COUNT; i++) { 2704 data = &usc->usc_rx_data[i]; 2705 2706 usbd_setup_xfer(data->xfer, data, data->buf, 2707 ATHN_USB_RXBUFSZ, USBD_SHORT_XFER_OK, 2708 USBD_NO_TIMEOUT, athn_usb_rxeof); 2709 error = usbd_transfer(data->xfer); 2710 if (error != 0 && error != USBD_IN_PROGRESS) 2711 goto fail; 2712 } 2713 /* We're ready to go. */ 2714 ifp->if_flags &= ~IFF_OACTIVE; 2715 ifp->if_flags |= IFF_RUNNING; 2716 2717 #ifdef notyet 2718 if (ic->ic_flags & IEEE80211_F_WEPON) { 2719 /* Install WEP keys. */ 2720 for (i = 0; i < IEEE80211_WEP_NKID; i++) 2721 athn_usb_set_key(ic, NULL, &ic->ic_nw_keys[i]); 2722 } 2723 #endif 2724 if (ic->ic_opmode == IEEE80211_M_HOSTAP) 2725 ic->ic_max_aid = AR_USB_MAX_STA; /* Firmware is limited to 8 STA */ 2726 else 2727 ic->ic_max_aid = sc->sc_max_aid; 2728 2729 if (ic->ic_opmode == IEEE80211_M_MONITOR) 2730 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2731 else 2732 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2733 athn_usb_wait_async(usc); 2734 return 0; 2735 fail: 2736 athn_usb_stop(ifp); 2737 return error; 2738 } 2739 2740 Static void 2741 athn_usb_stop(struct ifnet *ifp) 2742 { 2743 struct athn_softc *sc = ifp->if_softc; 2744 struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); 2745 struct ieee80211com *ic = &sc->sc_ic; 2746 struct ar_htc_target_vif hvif; 2747 struct mbuf *m; 2748 uint8_t sta_index; 2749 int s; 2750 2751 DPRINTFN(DBG_FN, sc, "\n"); 2752 2753 s = splusb(); 2754 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2755 athn_usb_wait_async(usc); 2756 splx(s); 2757 2758 sc->sc_tx_timer = 0; 2759 ifp->if_timer = 0; 2760 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2761 2762 callout_stop(&sc->sc_scan_to); 2763 callout_stop(&sc->sc_calib_to); 2764 2765 /* Abort Tx/Rx. */ 2766 usbd_abort_pipe(usc->usc_tx_data_pipe); 2767 usbd_abort_pipe(usc->usc_rx_data_pipe); 2768 2769 /* Free Tx/Rx buffers. */ 2770 athn_usb_free_tx_list(usc); 2771 athn_usb_free_rx_list(usc); 2772 2773 /* Flush Rx stream. */ 2774 CTASSERT(sizeof(m) == sizeof(void *)); 2775 m = atomic_swap_ptr(&usc->usc_rx_stream.m, NULL); 2776 m_freem(m); 2777 usc->usc_rx_stream.left = 0; 2778 2779 /* Remove main interface. */ 2780 memset(&hvif, 0, sizeof(hvif)); 2781 hvif.index = 0; 2782 IEEE80211_ADDR_COPY(hvif.myaddr, ic->ic_myaddr); 2783 (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_VAP_REMOVE, 2784 &hvif, sizeof(hvif), NULL); 2785 2786 /* Remove default node. */ 2787 sta_index = 0; 2788 DPRINTFN(DBG_NODES, usc, "removing node %u\n", sta_index); 2789 (void)athn_usb_remove_hw_node(usc, &sta_index); 2790 2791 (void)athn_usb_wmi_cmd(usc, AR_WMI_CMD_DISABLE_INTR); 2792 (void)athn_usb_wmi_cmd(usc, AR_WMI_CMD_DRAIN_TXQ_ALL); 2793 (void)athn_usb_wmi_cmd(usc, AR_WMI_CMD_STOP_RECV); 2794 2795 athn_reset(sc, 0); 2796 athn_init_pll(sc, NULL); 2797 athn_set_power_awake(sc); 2798 athn_reset(sc, 1); 2799 athn_init_pll(sc, NULL); 2800 athn_set_power_sleep(sc); 2801 } 2802 2803 MODULE(MODULE_CLASS_DRIVER, if_athn_usb, "bpf"); 2804 2805 #ifdef _MODULE 2806 #include "ioconf.c" 2807 #endif 2808 2809 static int 2810 if_athn_usb_modcmd(modcmd_t cmd, void *aux) 2811 { 2812 int error = 0; 2813 2814 switch (cmd) { 2815 case MODULE_CMD_INIT: 2816 #ifdef _MODULE 2817 error = config_init_component(cfdriver_ioconf_if_athn_usb, 2818 cfattach_ioconf_if_athn_usb, cfdata_ioconf_if_athn_usb); 2819 #endif 2820 return error; 2821 case MODULE_CMD_FINI: 2822 #ifdef _MODULE 2823 error = config_fini_component(cfdriver_ioconf_if_athn_usb, 2824 cfattach_ioconf_if_athn_usb, cfdata_ioconf_if_athn_usb); 2825 #endif 2826 return error; 2827 default: 2828 return ENOTTY; 2829 } 2830 } 2831