1 /* $OpenBSD: if_rsu.c,v 1.41 2017/10/26 15:00:28 mpi Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* 20 * Driver for Realtek RTL8188SU/RTL8191SU/RTL8192SU. 21 */ 22 23 #include "bpfilter.h" 24 25 #include <sys/param.h> 26 #include <sys/sockio.h> 27 #include <sys/mbuf.h> 28 #include <sys/kernel.h> 29 #include <sys/socket.h> 30 #include <sys/systm.h> 31 #include <sys/timeout.h> 32 #include <sys/conf.h> 33 #include <sys/device.h> 34 #include <sys/endian.h> 35 36 #include <machine/intr.h> 37 38 #if NBPFILTER > 0 39 #include <net/bpf.h> 40 #endif 41 #include <net/if.h> 42 #include <net/if_dl.h> 43 #include <net/if_media.h> 44 45 #include <netinet/in.h> 46 #include <netinet/if_ether.h> 47 48 #include <net80211/ieee80211_var.h> 49 #include <net80211/ieee80211_radiotap.h> 50 51 #include <dev/usb/usb.h> 52 #include <dev/usb/usbdi.h> 53 #include <dev/usb/usbdi_util.h> 54 #include <dev/usb/usbdevs.h> 55 56 #include <dev/usb/if_rsureg.h> 57 58 #ifdef RSU_DEBUG 59 #define DPRINTF(x) do { if (rsu_debug) printf x; } while (0) 60 #define DPRINTFN(n, x) do { if (rsu_debug >= (n)) printf x; } while (0) 61 int rsu_debug = 4; 62 #else 63 #define DPRINTF(x) 64 #define DPRINTFN(n, x) 65 #endif 66 67 /* 68 * NB: When updating this list of devices, beware to also update the list 69 * of devices that have HT support disabled below, if applicable. 70 */ 71 static const struct usb_devno rsu_devs[] = { 72 { USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_RTL8192SU }, 73 { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_USBN10 }, 74 { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RTL8192SU_1 }, 75 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8192SU_1 }, 76 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8192SU_2 }, 77 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8192SU_3 }, 78 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8192SU_4 }, 79 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8192SU_5 }, 80 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_RTL8192SU_1 }, 81 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_RTL8192SU_2 }, 82 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_RTL8192SU_3 }, 83 { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_RTL8192SU_1 }, 84 { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_RTL8192SU_2 }, 85 { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_RTL8192SU_3 }, 86 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_RTL8192SU }, 87 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA131A1 }, 88 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_RTL8192SU_1 }, 89 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_RTL8192SU_2 }, 90 { USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_RTL8192SU_1 }, 91 { USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_RTL8192SU_2 }, 92 { USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_RTL8192SU_3 }, 93 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUN54 }, 94 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWNUM300 }, 95 { USB_VENDOR_HAWKING, USB_PRODUCT_HAWKING_RTL8192SU_1 }, 96 { USB_VENDOR_HAWKING, USB_PRODUCT_HAWKING_RTL8192SU_2 }, 97 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSNANO }, 98 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8171 }, 99 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8172 }, 100 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8173 }, 101 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8174 }, 102 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8192SU }, 103 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8712 }, 104 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8713 }, 105 { USB_VENDOR_SENAO, USB_PRODUCT_SENAO_RTL8192SU_1 }, 106 { USB_VENDOR_SENAO, USB_PRODUCT_SENAO_RTL8192SU_2 }, 107 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL349V1 }, 108 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL353 }, 109 { USB_VENDOR_SWEEX2, USB_PRODUCT_SWEEX2_LW154 } 110 }; 111 112 /* List of devices that have HT support disabled. */ 113 static const struct usb_devno rsu_devs_noht[] = { 114 { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RTL8192SU_1 }, 115 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8192SU_4 } 116 }; 117 118 int rsu_match(struct device *, void *, void *); 119 void rsu_attach(struct device *, struct device *, void *); 120 int rsu_detach(struct device *, int); 121 int rsu_open_pipes(struct rsu_softc *); 122 void rsu_close_pipes(struct rsu_softc *); 123 int rsu_alloc_rx_list(struct rsu_softc *); 124 void rsu_free_rx_list(struct rsu_softc *); 125 int rsu_alloc_tx_list(struct rsu_softc *); 126 void rsu_free_tx_list(struct rsu_softc *); 127 void rsu_task(void *); 128 void rsu_do_async(struct rsu_softc *, 129 void (*)(struct rsu_softc *, void *), void *, int); 130 void rsu_wait_async(struct rsu_softc *); 131 int rsu_write_region_1(struct rsu_softc *, uint16_t, uint8_t *, 132 int); 133 void rsu_write_1(struct rsu_softc *, uint16_t, uint8_t); 134 void rsu_write_2(struct rsu_softc *, uint16_t, uint16_t); 135 void rsu_write_4(struct rsu_softc *, uint16_t, uint32_t); 136 int rsu_read_region_1(struct rsu_softc *, uint16_t, uint8_t *, 137 int); 138 uint8_t rsu_read_1(struct rsu_softc *, uint16_t); 139 uint16_t rsu_read_2(struct rsu_softc *, uint16_t); 140 uint32_t rsu_read_4(struct rsu_softc *, uint16_t); 141 int rsu_fw_iocmd(struct rsu_softc *, uint32_t); 142 uint8_t rsu_efuse_read_1(struct rsu_softc *, uint16_t); 143 int rsu_read_rom(struct rsu_softc *); 144 int rsu_fw_cmd(struct rsu_softc *, uint8_t, void *, int); 145 int rsu_media_change(struct ifnet *); 146 void rsu_calib_to(void *); 147 void rsu_calib_cb(struct rsu_softc *, void *); 148 int rsu_newstate(struct ieee80211com *, enum ieee80211_state, int); 149 void rsu_newstate_cb(struct rsu_softc *, void *); 150 int rsu_set_key(struct ieee80211com *, struct ieee80211_node *, 151 struct ieee80211_key *); 152 void rsu_set_key_cb(struct rsu_softc *, void *); 153 void rsu_delete_key(struct ieee80211com *, struct ieee80211_node *, 154 struct ieee80211_key *); 155 void rsu_delete_key_cb(struct rsu_softc *, void *); 156 int rsu_site_survey(struct rsu_softc *); 157 int rsu_join_bss(struct rsu_softc *, struct ieee80211_node *); 158 int rsu_disconnect(struct rsu_softc *); 159 void rsu_event_survey(struct rsu_softc *, uint8_t *, int); 160 void rsu_event_join_bss(struct rsu_softc *, uint8_t *, int); 161 void rsu_rx_event(struct rsu_softc *, uint8_t, uint8_t *, int); 162 void rsu_rx_multi_event(struct rsu_softc *, uint8_t *, int); 163 int8_t rsu_get_rssi(struct rsu_softc *, int, void *); 164 void rsu_rx_frame(struct rsu_softc *, uint8_t *, int); 165 void rsu_rx_multi_frame(struct rsu_softc *, uint8_t *, int); 166 void rsu_rxeof(struct usbd_xfer *, void *, usbd_status); 167 void rsu_txeof(struct usbd_xfer *, void *, usbd_status); 168 int rsu_tx(struct rsu_softc *, struct mbuf *, 169 struct ieee80211_node *); 170 int rsu_send_mgmt(struct ieee80211com *, struct ieee80211_node *, 171 int, int, int); 172 void rsu_start(struct ifnet *); 173 void rsu_watchdog(struct ifnet *); 174 int rsu_ioctl(struct ifnet *, u_long, caddr_t); 175 void rsu_power_on_acut(struct rsu_softc *); 176 void rsu_power_on_bcut(struct rsu_softc *); 177 void rsu_power_off(struct rsu_softc *); 178 int rsu_fw_loadsection(struct rsu_softc *, uint8_t *, int); 179 int rsu_load_firmware(struct rsu_softc *); 180 int rsu_init(struct ifnet *); 181 void rsu_stop(struct ifnet *); 182 183 struct cfdriver rsu_cd = { 184 NULL, "rsu", DV_IFNET 185 }; 186 187 const struct cfattach rsu_ca = { 188 sizeof(struct rsu_softc), rsu_match, rsu_attach, rsu_detach, 189 }; 190 191 int 192 rsu_match(struct device *parent, void *match, void *aux) 193 { 194 struct usb_attach_arg *uaa = aux; 195 196 if (uaa->iface == NULL || uaa->configno != 1) 197 return (UMATCH_NONE); 198 199 return ((usb_lookup(rsu_devs, uaa->vendor, uaa->product) != NULL) ? 200 UMATCH_VENDOR_PRODUCT_CONF_IFACE : UMATCH_NONE); 201 } 202 203 void 204 rsu_attach(struct device *parent, struct device *self, void *aux) 205 { 206 struct rsu_softc *sc = (struct rsu_softc *)self; 207 struct usb_attach_arg *uaa = aux; 208 struct ieee80211com *ic = &sc->sc_ic; 209 struct ifnet *ifp = &ic->ic_if; 210 int i, error; 211 212 sc->sc_udev = uaa->device; 213 sc->sc_iface = uaa->iface; 214 215 usb_init_task(&sc->sc_task, rsu_task, sc, USB_TASK_TYPE_GENERIC); 216 timeout_set(&sc->calib_to, rsu_calib_to, sc); 217 218 /* Read chip revision. */ 219 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 220 if (sc->cut != 3) 221 sc->cut = (sc->cut >> 1) + 1; 222 223 error = rsu_read_rom(sc); 224 if (error != 0) { 225 printf("%s: could not read ROM\n", sc->sc_dev.dv_xname); 226 return; 227 } 228 IEEE80211_ADDR_COPY(ic->ic_myaddr, &sc->rom[0x12]); 229 230 printf("%s: MAC/BB RTL8712 cut %d, address %s\n", 231 sc->sc_dev.dv_xname, sc->cut, ether_sprintf(ic->ic_myaddr)); 232 233 if (rsu_open_pipes(sc) != 0) 234 return; 235 236 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 237 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 238 ic->ic_state = IEEE80211_S_INIT; 239 240 /* Set device capabilities. */ 241 ic->ic_caps = 242 IEEE80211_C_SCANALL | /* Hardware scan. */ 243 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 244 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 245 IEEE80211_C_WEP | /* WEP. */ 246 IEEE80211_C_RSN; /* WPA/RSN. */ 247 /* Check if HT support is present. */ 248 if (usb_lookup(rsu_devs_noht, uaa->vendor, uaa->product) == NULL) { 249 #ifdef notyet 250 /* Set HT capabilities. */ 251 ic->ic_htcaps = 252 IEEE80211_HTCAP_CBW20_40 | 253 IEEE80211_HTCAP_DSSSCCK40; 254 /* Set supported HT rates. */ 255 for (i = 0; i < 2; i++) 256 ic->ic_sup_mcs[i] = 0xff; 257 #endif 258 } 259 260 /* Set supported .11b and .11g rates. */ 261 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 262 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 263 264 /* Set supported .11b and .11g channels (1 through 14). */ 265 for (i = 1; i <= 14; i++) { 266 ic->ic_channels[i].ic_freq = 267 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 268 ic->ic_channels[i].ic_flags = 269 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 270 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 271 } 272 273 ifp->if_softc = sc; 274 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 275 ifp->if_ioctl = rsu_ioctl; 276 ifp->if_start = rsu_start; 277 ifp->if_watchdog = rsu_watchdog; 278 memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 279 280 if_attach(ifp); 281 ieee80211_ifattach(ifp); 282 #ifdef notyet 283 ic->ic_set_key = rsu_set_key; 284 ic->ic_delete_key = rsu_delete_key; 285 #endif 286 /* Override state transition machine. */ 287 sc->sc_newstate = ic->ic_newstate; 288 ic->ic_newstate = rsu_newstate; 289 ic->ic_send_mgmt = rsu_send_mgmt; 290 ieee80211_media_init(ifp, rsu_media_change, ieee80211_media_status); 291 292 #if NBPFILTER > 0 293 bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO, 294 sizeof(struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN); 295 296 sc->sc_rxtap_len = sizeof(sc->sc_rxtapu); 297 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 298 sc->sc_rxtap.wr_ihdr.it_present = htole32(RSU_RX_RADIOTAP_PRESENT); 299 300 sc->sc_txtap_len = sizeof(sc->sc_txtapu); 301 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 302 sc->sc_txtap.wt_ihdr.it_present = htole32(RSU_TX_RADIOTAP_PRESENT); 303 #endif 304 } 305 306 int 307 rsu_detach(struct device *self, int flags) 308 { 309 struct rsu_softc *sc = (struct rsu_softc *)self; 310 struct ifnet *ifp = &sc->sc_ic.ic_if; 311 int s; 312 313 s = splusb(); 314 315 if (timeout_initialized(&sc->calib_to)) 316 timeout_del(&sc->calib_to); 317 318 /* Wait for all async commands to complete. */ 319 usb_rem_wait_task(sc->sc_udev, &sc->sc_task); 320 321 usbd_ref_wait(sc->sc_udev); 322 323 if (ifp->if_softc != NULL) { 324 ieee80211_ifdetach(ifp); 325 if_detach(ifp); 326 } 327 328 /* Abort and close Tx/Rx pipes. */ 329 rsu_close_pipes(sc); 330 331 /* Free Tx/Rx buffers. */ 332 rsu_free_tx_list(sc); 333 rsu_free_rx_list(sc); 334 splx(s); 335 336 return (0); 337 } 338 339 int 340 rsu_open_pipes(struct rsu_softc *sc) 341 { 342 usb_interface_descriptor_t *id; 343 int i, error; 344 345 /* 346 * Determine the number of Tx/Rx endpoints (there are chips with 347 * 4, 6 or 11 endpoints). 348 */ 349 id = usbd_get_interface_descriptor(sc->sc_iface); 350 sc->npipes = id->bNumEndpoints; 351 if (sc->npipes == 4) 352 sc->qid2idx = rsu_qid2idx_4ep; 353 else if (sc->npipes == 6) 354 sc->qid2idx = rsu_qid2idx_6ep; 355 else /* Assume npipes==11; will fail below otherwise. */ 356 sc->qid2idx = rsu_qid2idx_11ep; 357 DPRINTF(("%d endpoints configuration\n", sc->npipes)); 358 359 /* Open all pipes. */ 360 for (i = 0; i < MIN(sc->npipes, nitems(r92s_epaddr)); i++) { 361 error = usbd_open_pipe(sc->sc_iface, r92s_epaddr[i], 0, 362 &sc->pipe[i]); 363 if (error != 0) { 364 printf("%s: could not open bulk pipe 0x%02x\n", 365 sc->sc_dev.dv_xname, r92s_epaddr[i]); 366 break; 367 } 368 } 369 if (error != 0) 370 rsu_close_pipes(sc); 371 return (error); 372 } 373 374 void 375 rsu_close_pipes(struct rsu_softc *sc) 376 { 377 int i; 378 379 /* Close all pipes. */ 380 for (i = 0; i < sc->npipes; i++) { 381 if (sc->pipe[i] == NULL) 382 continue; 383 usbd_abort_pipe(sc->pipe[i]); 384 usbd_close_pipe(sc->pipe[i]); 385 } 386 } 387 388 int 389 rsu_alloc_rx_list(struct rsu_softc *sc) 390 { 391 struct rsu_rx_data *data; 392 int i, error = 0; 393 394 for (i = 0; i < RSU_RX_LIST_COUNT; i++) { 395 data = &sc->rx_data[i]; 396 397 data->sc = sc; /* Backpointer for callbacks. */ 398 399 data->xfer = usbd_alloc_xfer(sc->sc_udev); 400 if (data->xfer == NULL) { 401 printf("%s: could not allocate xfer\n", 402 sc->sc_dev.dv_xname); 403 error = ENOMEM; 404 break; 405 } 406 data->buf = usbd_alloc_buffer(data->xfer, RSU_RXBUFSZ); 407 if (data->buf == NULL) { 408 printf("%s: could not allocate xfer buffer\n", 409 sc->sc_dev.dv_xname); 410 error = ENOMEM; 411 break; 412 } 413 } 414 if (error != 0) 415 rsu_free_rx_list(sc); 416 return (error); 417 } 418 419 void 420 rsu_free_rx_list(struct rsu_softc *sc) 421 { 422 int i; 423 424 /* NB: Caller must abort pipe first. */ 425 for (i = 0; i < RSU_RX_LIST_COUNT; i++) { 426 if (sc->rx_data[i].xfer != NULL) 427 usbd_free_xfer(sc->rx_data[i].xfer); 428 sc->rx_data[i].xfer = NULL; 429 } 430 } 431 432 int 433 rsu_alloc_tx_list(struct rsu_softc *sc) 434 { 435 struct rsu_tx_data *data; 436 int i, error = 0; 437 438 TAILQ_INIT(&sc->tx_free_list); 439 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 440 data = &sc->tx_data[i]; 441 442 data->sc = sc; /* Backpointer for callbacks. */ 443 444 data->xfer = usbd_alloc_xfer(sc->sc_udev); 445 if (data->xfer == NULL) { 446 printf("%s: could not allocate xfer\n", 447 sc->sc_dev.dv_xname); 448 error = ENOMEM; 449 break; 450 } 451 data->buf = usbd_alloc_buffer(data->xfer, RSU_TXBUFSZ); 452 if (data->buf == NULL) { 453 printf("%s: could not allocate xfer buffer\n", 454 sc->sc_dev.dv_xname); 455 error = ENOMEM; 456 break; 457 } 458 /* Append this Tx buffer to our free list. */ 459 TAILQ_INSERT_TAIL(&sc->tx_free_list, data, next); 460 } 461 if (error != 0) 462 rsu_free_tx_list(sc); 463 return (error); 464 } 465 466 void 467 rsu_free_tx_list(struct rsu_softc *sc) 468 { 469 int i; 470 471 /* NB: Caller must abort pipe first. */ 472 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 473 if (sc->tx_data[i].xfer != NULL) 474 usbd_free_xfer(sc->tx_data[i].xfer); 475 sc->tx_data[i].xfer = NULL; 476 } 477 } 478 479 void 480 rsu_task(void *arg) 481 { 482 struct rsu_softc *sc = arg; 483 struct rsu_host_cmd_ring *ring = &sc->cmdq; 484 struct rsu_host_cmd *cmd; 485 int s; 486 487 /* Process host commands. */ 488 s = splusb(); 489 while (ring->next != ring->cur) { 490 cmd = &ring->cmd[ring->next]; 491 splx(s); 492 /* Invoke callback. */ 493 cmd->cb(sc, cmd->data); 494 s = splusb(); 495 ring->queued--; 496 ring->next = (ring->next + 1) % RSU_HOST_CMD_RING_COUNT; 497 } 498 splx(s); 499 } 500 501 void 502 rsu_do_async(struct rsu_softc *sc, 503 void (*cb)(struct rsu_softc *, void *), void *arg, int len) 504 { 505 struct rsu_host_cmd_ring *ring = &sc->cmdq; 506 struct rsu_host_cmd *cmd; 507 int s; 508 509 s = splusb(); 510 cmd = &ring->cmd[ring->cur]; 511 cmd->cb = cb; 512 KASSERT(len <= sizeof(cmd->data)); 513 memcpy(cmd->data, arg, len); 514 ring->cur = (ring->cur + 1) % RSU_HOST_CMD_RING_COUNT; 515 516 /* If there is no pending command already, schedule a task. */ 517 if (++ring->queued == 1) 518 usb_add_task(sc->sc_udev, &sc->sc_task); 519 splx(s); 520 } 521 522 void 523 rsu_wait_async(struct rsu_softc *sc) 524 { 525 /* Wait for all queued asynchronous commands to complete. */ 526 usb_wait_task(sc->sc_udev, &sc->sc_task); 527 } 528 529 int 530 rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 531 int len) 532 { 533 usb_device_request_t req; 534 535 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 536 req.bRequest = R92S_REQ_REGS; 537 USETW(req.wValue, addr); 538 USETW(req.wIndex, 0); 539 USETW(req.wLength, len); 540 return (usbd_do_request(sc->sc_udev, &req, buf)); 541 } 542 543 void 544 rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 545 { 546 rsu_write_region_1(sc, addr, &val, 1); 547 } 548 549 void 550 rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 551 { 552 val = htole16(val); 553 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 554 } 555 556 void 557 rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 558 { 559 val = htole32(val); 560 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 561 } 562 563 int 564 rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 565 int len) 566 { 567 usb_device_request_t req; 568 569 req.bmRequestType = UT_READ_VENDOR_DEVICE; 570 req.bRequest = R92S_REQ_REGS; 571 USETW(req.wValue, addr); 572 USETW(req.wIndex, 0); 573 USETW(req.wLength, len); 574 return (usbd_do_request(sc->sc_udev, &req, buf)); 575 } 576 577 uint8_t 578 rsu_read_1(struct rsu_softc *sc, uint16_t addr) 579 { 580 uint8_t val; 581 582 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 583 return (0xff); 584 return (val); 585 } 586 587 uint16_t 588 rsu_read_2(struct rsu_softc *sc, uint16_t addr) 589 { 590 uint16_t val; 591 592 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 593 return (0xffff); 594 return (letoh16(val)); 595 } 596 597 uint32_t 598 rsu_read_4(struct rsu_softc *sc, uint16_t addr) 599 { 600 uint32_t val; 601 602 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 603 return (0xffffffff); 604 return (letoh32(val)); 605 } 606 607 int 608 rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 609 { 610 int ntries; 611 612 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 613 DELAY(100); 614 for (ntries = 0; ntries < 50; ntries++) { 615 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 616 return (0); 617 DELAY(10); 618 } 619 return (ETIMEDOUT); 620 } 621 622 uint8_t 623 rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 624 { 625 uint32_t reg; 626 int ntries; 627 628 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 629 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 630 reg &= ~R92S_EFUSE_CTRL_VALID; 631 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 632 /* Wait for read operation to complete. */ 633 for (ntries = 0; ntries < 100; ntries++) { 634 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 635 if (reg & R92S_EFUSE_CTRL_VALID) 636 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 637 DELAY(5); 638 } 639 printf("%s: could not read efuse byte at address 0x%x\n", 640 sc->sc_dev.dv_xname, addr); 641 return (0xff); 642 } 643 644 int 645 rsu_read_rom(struct rsu_softc *sc) 646 { 647 uint8_t *rom = sc->rom; 648 uint16_t addr = 0; 649 uint32_t reg; 650 uint8_t off, msk; 651 int i; 652 653 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 654 reg = rsu_read_1(sc, R92S_EE_9346CR); 655 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 656 return (EIO); 657 658 /* Turn on 2.5V to prevent eFuse leakage. */ 659 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 660 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 661 DELAY(1000); 662 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 663 664 /* Read full ROM image. */ 665 memset(&sc->rom, 0xff, sizeof(sc->rom)); 666 while (addr < 512) { 667 reg = rsu_efuse_read_1(sc, addr); 668 if (reg == 0xff) 669 break; 670 addr++; 671 off = reg >> 4; 672 msk = reg & 0xf; 673 for (i = 0; i < 4; i++) { 674 if (msk & (1 << i)) 675 continue; 676 rom[off * 8 + i * 2 + 0] = 677 rsu_efuse_read_1(sc, addr); 678 addr++; 679 rom[off * 8 + i * 2 + 1] = 680 rsu_efuse_read_1(sc, addr); 681 addr++; 682 } 683 } 684 #ifdef RSU_DEBUG 685 if (rsu_debug >= 5) { 686 /* Dump ROM content. */ 687 printf("\n"); 688 for (i = 0; i < sizeof(sc->rom); i++) 689 printf("%02x:", rom[i]); 690 printf("\n"); 691 } 692 #endif 693 return (0); 694 } 695 696 int 697 rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 698 { 699 struct rsu_tx_data *data; 700 struct r92s_tx_desc *txd; 701 struct r92s_fw_cmd_hdr *cmd; 702 struct usbd_pipe *pipe; 703 int cmdsz, xferlen; 704 705 data = sc->fwcmd_data; 706 707 /* Round-up command length to a multiple of 8 bytes. */ 708 cmdsz = (len + 7) & ~7; 709 710 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 711 KASSERT(xferlen <= RSU_TXBUFSZ); 712 memset(data->buf, 0, xferlen); 713 714 /* Setup Tx descriptor. */ 715 txd = (struct r92s_tx_desc *)data->buf; 716 txd->txdw0 = htole32( 717 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 718 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 719 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 720 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 721 722 /* Setup command header. */ 723 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 724 cmd->len = htole16(cmdsz); 725 cmd->code = code; 726 cmd->seq = sc->cmd_seq; 727 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 728 729 /* Copy command payload. */ 730 memcpy(&cmd[1], buf, len); 731 732 DPRINTFN(2, ("Tx cmd code=%d len=%d\n", code, cmdsz)); 733 pipe = sc->pipe[sc->qid2idx[RSU_QID_H2C]]; 734 usbd_setup_xfer(data->xfer, pipe, NULL, data->buf, xferlen, 735 USBD_SHORT_XFER_OK | USBD_NO_COPY | USBD_SYNCHRONOUS, 736 RSU_CMD_TIMEOUT, NULL); 737 return (usbd_transfer(data->xfer)); 738 } 739 740 int 741 rsu_media_change(struct ifnet *ifp) 742 { 743 int error; 744 745 error = ieee80211_media_change(ifp); 746 if (error != ENETRESET) 747 return (error); 748 749 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 750 (IFF_UP | IFF_RUNNING)) { 751 rsu_stop(ifp); 752 rsu_init(ifp); 753 } 754 return (0); 755 } 756 757 void 758 rsu_calib_to(void *arg) 759 { 760 struct rsu_softc *sc = arg; 761 762 if (usbd_is_dying(sc->sc_udev)) 763 return; 764 765 usbd_ref_incr(sc->sc_udev); 766 767 /* Do it in a process context. */ 768 rsu_do_async(sc, rsu_calib_cb, NULL, 0); 769 770 usbd_ref_decr(sc->sc_udev); 771 } 772 773 /* ARGSUSED */ 774 void 775 rsu_calib_cb(struct rsu_softc *sc, void *arg) 776 { 777 uint32_t reg; 778 779 #ifdef notyet 780 /* Read WPS PBC status. */ 781 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 782 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 783 rsu_write_1(sc, R92S_GPIO_IO_SEL, 784 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 785 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 786 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 787 DPRINTF(("WPS PBC is pushed\n")); 788 #endif 789 /* Read current signal level. */ 790 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 791 reg = rsu_read_4(sc, R92S_IOCMD_DATA); 792 DPRINTFN(8, ("RSSI=%d%%\n", reg >> 4)); 793 } 794 795 if (!usbd_is_dying(sc->sc_udev)) 796 timeout_add_sec(&sc->calib_to, 2); 797 } 798 799 int 800 rsu_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 801 { 802 struct rsu_softc *sc = ic->ic_softc; 803 struct rsu_cmd_newstate cmd; 804 805 /* Do it in a process context. */ 806 cmd.state = nstate; 807 cmd.arg = arg; 808 rsu_do_async(sc, rsu_newstate_cb, &cmd, sizeof(cmd)); 809 return (0); 810 } 811 812 void 813 rsu_newstate_cb(struct rsu_softc *sc, void *arg) 814 { 815 struct rsu_cmd_newstate *cmd = arg; 816 struct ieee80211com *ic = &sc->sc_ic; 817 enum ieee80211_state ostate; 818 int error, s; 819 820 s = splnet(); 821 ostate = ic->ic_state; 822 DPRINTF(("newstate %s -> %s\n", 823 ieee80211_state_name[ostate], 824 ieee80211_state_name[cmd->state])); 825 826 if (ostate == IEEE80211_S_RUN) { 827 /* Stop calibration. */ 828 timeout_del(&sc->calib_to); 829 /* Disassociate from our current BSS. */ 830 (void)rsu_disconnect(sc); 831 } 832 switch (cmd->state) { 833 case IEEE80211_S_INIT: 834 break; 835 case IEEE80211_S_SCAN: 836 error = rsu_site_survey(sc); 837 if (error != 0) { 838 printf("%s: could not send site survey command\n", 839 sc->sc_dev.dv_xname); 840 } 841 ic->ic_state = cmd->state; 842 splx(s); 843 return; 844 case IEEE80211_S_AUTH: 845 ic->ic_bss->ni_rsn_supp_state = RSNA_SUPP_INITIALIZE; 846 error = rsu_join_bss(sc, ic->ic_bss); 847 if (error != 0) { 848 printf("%s: could not send join command\n", 849 sc->sc_dev.dv_xname); 850 ieee80211_begin_scan(&ic->ic_if); 851 splx(s); 852 return; 853 } 854 ic->ic_state = cmd->state; 855 if (ic->ic_flags & IEEE80211_F_RSNON) 856 ic->ic_bss->ni_rsn_supp_state = RSNA_SUPP_PTKSTART; 857 splx(s); 858 return; 859 case IEEE80211_S_ASSOC: 860 /* No-op for this driver. See rsu_event_join_bss(). */ 861 ic->ic_state = cmd->state; 862 splx(s); 863 return; 864 case IEEE80211_S_RUN: 865 /* Indicate highest supported rate. */ 866 ic->ic_bss->ni_txrate = ic->ic_bss->ni_rates.rs_nrates - 1; 867 868 /* Start periodic calibration. */ 869 if (!usbd_is_dying(sc->sc_udev)) 870 timeout_add_sec(&sc->calib_to, 2); 871 break; 872 } 873 (void)sc->sc_newstate(ic, cmd->state, cmd->arg); 874 splx(s); 875 } 876 877 int 878 rsu_set_key(struct ieee80211com *ic, struct ieee80211_node *ni, 879 struct ieee80211_key *k) 880 { 881 struct rsu_softc *sc = ic->ic_softc; 882 struct rsu_cmd_key cmd; 883 884 /* Defer setting of WEP keys until interface is brought up. */ 885 if ((ic->ic_if.if_flags & (IFF_UP | IFF_RUNNING)) != 886 (IFF_UP | IFF_RUNNING)) 887 return (0); 888 889 /* Do it in a process context. */ 890 cmd.key = *k; 891 rsu_do_async(sc, rsu_set_key_cb, &cmd, sizeof(cmd)); 892 return (0); 893 } 894 895 void 896 rsu_set_key_cb(struct rsu_softc *sc, void *arg) 897 { 898 struct rsu_cmd_key *cmd = arg; 899 struct ieee80211_key *k = &cmd->key; 900 struct r92s_fw_cmd_set_key key; 901 902 memset(&key, 0, sizeof(key)); 903 /* Map net80211 cipher to HW crypto algorithm. */ 904 switch (k->k_cipher) { 905 case IEEE80211_CIPHER_WEP40: 906 key.algo = R92S_KEY_ALGO_WEP40; 907 break; 908 case IEEE80211_CIPHER_WEP104: 909 key.algo = R92S_KEY_ALGO_WEP104; 910 break; 911 case IEEE80211_CIPHER_TKIP: 912 key.algo = R92S_KEY_ALGO_TKIP; 913 break; 914 case IEEE80211_CIPHER_CCMP: 915 key.algo = R92S_KEY_ALGO_AES; 916 break; 917 default: 918 return; 919 } 920 key.id = k->k_id; 921 key.grpkey = (k->k_flags & IEEE80211_KEY_GROUP) != 0; 922 memcpy(key.key, k->k_key, MIN(k->k_len, sizeof(key.key))); 923 (void)rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 924 } 925 926 /* ARGSUSED */ 927 void 928 rsu_delete_key(struct ieee80211com *ic, struct ieee80211_node *ni, 929 struct ieee80211_key *k) 930 { 931 struct rsu_softc *sc = ic->ic_softc; 932 struct rsu_cmd_key cmd; 933 934 if (!(ic->ic_if.if_flags & IFF_RUNNING) || 935 ic->ic_state != IEEE80211_S_RUN) 936 return; /* Nothing to do. */ 937 938 /* Do it in a process context. */ 939 cmd.key = *k; 940 rsu_do_async(sc, rsu_delete_key_cb, &cmd, sizeof(cmd)); 941 } 942 943 void 944 rsu_delete_key_cb(struct rsu_softc *sc, void *arg) 945 { 946 struct rsu_cmd_key *cmd = arg; 947 struct ieee80211_key *k = &cmd->key; 948 struct r92s_fw_cmd_set_key key; 949 950 memset(&key, 0, sizeof(key)); 951 key.id = k->k_id; 952 (void)rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 953 } 954 955 int 956 rsu_site_survey(struct rsu_softc *sc) 957 { 958 struct ieee80211com *ic = &sc->sc_ic; 959 struct r92s_fw_cmd_sitesurvey cmd; 960 961 memset(&cmd, 0, sizeof(cmd)); 962 if ((ic->ic_flags & IEEE80211_F_ASCAN) || sc->scan_pass == 1) 963 cmd.active = htole32(1); 964 cmd.limit = htole32(48); 965 if (sc->scan_pass == 1) { 966 /* Do a directed scan for second pass. */ 967 cmd.ssidlen = htole32(ic->ic_des_esslen); 968 memcpy(cmd.ssid, ic->ic_des_essid, ic->ic_des_esslen); 969 } 970 DPRINTF(("sending site survey command, pass=%d\n", sc->scan_pass)); 971 return (rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd))); 972 } 973 974 int 975 rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 976 { 977 struct ieee80211com *ic = &sc->sc_ic; 978 struct ndis_wlan_bssid_ex *bss; 979 struct ndis_802_11_fixed_ies *fixed; 980 struct r92s_fw_cmd_auth auth; 981 uint8_t buf[sizeof(*bss) + 128], *frm; 982 uint8_t opmode; 983 int error; 984 985 /* Let the FW decide the opmode based on the capinfo field. */ 986 opmode = NDIS802_11AUTOUNKNOWN; 987 DPRINTF(("setting operating mode to %d\n", opmode)); 988 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 989 if (error != 0) 990 return (error); 991 992 memset(&auth, 0, sizeof(auth)); 993 if (ic->ic_flags & IEEE80211_F_RSNON) { 994 auth.mode = R92S_AUTHMODE_WPA; 995 auth.dot1x = ieee80211_is_8021x_akm(ni->ni_rsnakms); 996 } else 997 auth.mode = R92S_AUTHMODE_OPEN; 998 DPRINTF(("setting auth mode to %d\n", auth.mode)); 999 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1000 if (error != 0) 1001 return (error); 1002 1003 memset(buf, 0, sizeof(buf)); 1004 bss = (struct ndis_wlan_bssid_ex *)buf; 1005 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1006 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1007 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1008 if (ic->ic_flags & (IEEE80211_F_WEPON | IEEE80211_F_RSNON)) 1009 bss->privacy = htole32(1); 1010 bss->rssi = htole32(ni->ni_rssi); 1011 if (ic->ic_curmode == IEEE80211_MODE_11B) 1012 bss->networktype = htole32(NDIS802_11DS); 1013 else 1014 bss->networktype = htole32(NDIS802_11OFDM24); 1015 bss->config.len = htole32(sizeof(bss->config)); 1016 bss->config.bintval = htole32(ni->ni_intval); 1017 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1018 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1019 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1020 ni->ni_rates.rs_nrates); 1021 /* Write the fixed fields of the beacon frame. */ 1022 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1023 memcpy(&fixed->tstamp, ni->ni_tstamp, 8); 1024 fixed->bintval = htole16(ni->ni_intval); 1025 fixed->capabilities = htole16(ni->ni_capinfo); 1026 /* Write IEs to be included in the association request. */ 1027 frm = (uint8_t *)&fixed[1]; 1028 if ((ic->ic_flags & IEEE80211_F_RSNON) && 1029 (ni->ni_rsnprotos & IEEE80211_PROTO_RSN)) 1030 frm = ieee80211_add_rsn(frm, ic, ni); 1031 if (ni->ni_flags & IEEE80211_NODE_QOS) 1032 frm = ieee80211_add_qos_capability(frm, ic); 1033 if (ni->ni_flags & IEEE80211_NODE_HT) 1034 frm = ieee80211_add_htcaps(frm, ic); 1035 if ((ic->ic_flags & IEEE80211_F_RSNON) && 1036 (ni->ni_rsnprotos & IEEE80211_PROTO_WPA)) 1037 frm = ieee80211_add_wpa(frm, ic, ni); 1038 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1039 bss->len = htole32(((frm - buf) + 3) & ~3); 1040 DPRINTF(("sending join bss command to %s chan %d\n", 1041 ether_sprintf(bss->macaddr), letoh32(bss->config.dsconfig))); 1042 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 1043 } 1044 1045 int 1046 rsu_disconnect(struct rsu_softc *sc) 1047 { 1048 uint32_t zero = 0; /* :-) */ 1049 1050 /* Disassociate from our current BSS. */ 1051 DPRINTF(("sending disconnect command\n")); 1052 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 1053 } 1054 1055 void 1056 rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 1057 { 1058 struct ieee80211com *ic = &sc->sc_ic; 1059 struct ifnet *ifp = &ic->ic_if; 1060 struct ieee80211_rxinfo rxi; 1061 struct ieee80211_node *ni; 1062 struct ieee80211_frame *wh; 1063 struct ndis_wlan_bssid_ex *bss; 1064 struct mbuf *m; 1065 uint32_t pktlen, ieslen; 1066 1067 if (__predict_false(len < sizeof(*bss))) 1068 return; 1069 bss = (struct ndis_wlan_bssid_ex *)buf; 1070 ieslen = letoh32(bss->ieslen); 1071 if (ieslen > len - sizeof(*bss)) 1072 return; 1073 1074 DPRINTFN(2, ("found BSS %s: len=%d chan=%d inframode=%d " 1075 "networktype=%d privacy=%d\n", 1076 ether_sprintf(bss->macaddr), letoh32(bss->len), 1077 letoh32(bss->config.dsconfig), letoh32(bss->inframode), 1078 letoh32(bss->networktype), letoh32(bss->privacy))); 1079 1080 /* Build a fake beacon frame to let net80211 do all the parsing. */ 1081 pktlen = sizeof(*wh) + ieslen; 1082 if (__predict_false(pktlen > MCLBYTES)) 1083 return; 1084 MGETHDR(m, M_DONTWAIT, MT_DATA); 1085 if (__predict_false(m == NULL)) 1086 return; 1087 if (pktlen > MHLEN) { 1088 MCLGET(m, M_DONTWAIT); 1089 if (!(m->m_flags & M_EXT)) { 1090 m_free(m); 1091 return; 1092 } 1093 } 1094 wh = mtod(m, struct ieee80211_frame *); 1095 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 1096 IEEE80211_FC0_SUBTYPE_BEACON; 1097 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1098 *(uint16_t *)wh->i_dur = 0; 1099 IEEE80211_ADDR_COPY(wh->i_addr1, etherbroadcastaddr); 1100 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 1101 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 1102 *(uint16_t *)wh->i_seq = 0; 1103 memcpy(&wh[1], (uint8_t *)&bss[1], ieslen); 1104 1105 /* Finalize mbuf. */ 1106 m->m_pkthdr.len = m->m_len = pktlen; 1107 1108 ni = ieee80211_find_rxnode(ic, wh); 1109 rxi.rxi_flags = 0; 1110 rxi.rxi_rssi = letoh32(bss->rssi); 1111 rxi.rxi_tstamp = 0; 1112 ieee80211_input(ifp, m, ni, &rxi); 1113 /* Node is no longer needed. */ 1114 ieee80211_release_node(ic, ni); 1115 } 1116 1117 void 1118 rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 1119 { 1120 struct ieee80211com *ic = &sc->sc_ic; 1121 struct ieee80211_node *ni = ic->ic_bss; 1122 struct r92s_event_join_bss *rsp; 1123 int res; 1124 1125 if (__predict_false(len < sizeof(*rsp))) 1126 return; 1127 rsp = (struct r92s_event_join_bss *)buf; 1128 res = (int)letoh32(rsp->join_res); 1129 1130 DPRINTF(("Rx join BSS event len=%d res=%d\n", len, res)); 1131 if (res <= 0) { 1132 ic->ic_stats.is_rx_auth_fail++; 1133 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 1134 return; 1135 } 1136 DPRINTF(("associated with %s associd=%d\n", 1137 ether_sprintf(rsp->bss.macaddr), letoh32(rsp->associd))); 1138 1139 ni->ni_associd = letoh32(rsp->associd) | 0xc000; 1140 if (ic->ic_flags & IEEE80211_F_WEPON) 1141 ni->ni_flags |= IEEE80211_NODE_TXRXPROT; 1142 1143 /* Force an ASSOC->RUN transition. AUTH->RUN is invalid. */ 1144 ic->ic_state = IEEE80211_S_ASSOC; 1145 ieee80211_new_state(ic, IEEE80211_S_RUN, 1146 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1147 } 1148 1149 void 1150 rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 1151 { 1152 struct ieee80211com *ic = &sc->sc_ic; 1153 struct ifnet *ifp = &ic->ic_if; 1154 1155 DPRINTFN(4, ("Rx event code=%d len=%d\n", code, len)); 1156 switch (code) { 1157 case R92S_EVT_SURVEY: 1158 if (ic->ic_state == IEEE80211_S_SCAN) 1159 rsu_event_survey(sc, buf, len); 1160 break; 1161 case R92S_EVT_SURVEY_DONE: 1162 DPRINTF(("site survey pass %d done, found %d BSS\n", 1163 sc->scan_pass, letoh32(*(uint32_t *)buf))); 1164 if (ic->ic_state != IEEE80211_S_SCAN) 1165 break; /* Ignore if not scanning. */ 1166 if (sc->scan_pass == 0 && ic->ic_des_esslen != 0) { 1167 /* Schedule a directed scan for hidden APs. */ 1168 sc->scan_pass = 1; 1169 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 1170 break; 1171 } 1172 ieee80211_end_scan(ifp); 1173 sc->scan_pass = 0; 1174 break; 1175 case R92S_EVT_JOIN_BSS: 1176 if (ic->ic_state == IEEE80211_S_AUTH) 1177 rsu_event_join_bss(sc, buf, len); 1178 break; 1179 case R92S_EVT_DEL_STA: 1180 DPRINTF(("disassociated from %s\n", ether_sprintf(buf))); 1181 if (ic->ic_state == IEEE80211_S_RUN && 1182 IEEE80211_ADDR_EQ(ic->ic_bss->ni_bssid, buf)) 1183 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 1184 break; 1185 case R92S_EVT_WPS_PBC: 1186 DPRINTF(("WPS PBC pushed.\n")); 1187 break; 1188 case R92S_EVT_FWDBG: 1189 if (ifp->if_flags & IFF_DEBUG) { 1190 buf[60] = '\0'; 1191 printf("FWDBG: %s\n", (char *)buf); 1192 } 1193 break; 1194 } 1195 } 1196 1197 void 1198 rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 1199 { 1200 struct r92s_fw_cmd_hdr *cmd; 1201 int cmdsz; 1202 1203 DPRINTFN(6, ("Rx events len=%d\n", len)); 1204 1205 /* Skip Rx status. */ 1206 buf += sizeof(struct r92s_rx_stat); 1207 len -= sizeof(struct r92s_rx_stat); 1208 1209 /* Process all events. */ 1210 for (;;) { 1211 /* Check that command header fits. */ 1212 if (__predict_false(len < sizeof(*cmd))) 1213 break; 1214 cmd = (struct r92s_fw_cmd_hdr *)buf; 1215 /* Check that command payload fits. */ 1216 cmdsz = letoh16(cmd->len); 1217 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 1218 break; 1219 if (cmdsz > len) 1220 break; 1221 1222 /* Process firmware event. */ 1223 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 1224 1225 if (!(cmd->seq & R92S_FW_CMD_MORE)) 1226 break; 1227 buf += sizeof(*cmd) + cmdsz; 1228 len -= sizeof(*cmd) + cmdsz; 1229 } 1230 } 1231 1232 int8_t 1233 rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 1234 { 1235 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 1236 struct r92s_rx_phystat *phy; 1237 struct r92s_rx_cck *cck; 1238 uint8_t rpt; 1239 int8_t rssi; 1240 1241 if (rate <= 3) { 1242 cck = (struct r92s_rx_cck *)physt; 1243 rpt = (cck->agc_rpt >> 6) & 0x3; 1244 rssi = cck->agc_rpt & 0x3e; 1245 rssi = cckoff[rpt] - rssi; 1246 } else { /* OFDM/HT. */ 1247 phy = (struct r92s_rx_phystat *)physt; 1248 rssi = ((letoh32(phy->phydw1) >> 1) & 0x7f) - 106; 1249 } 1250 return (rssi); 1251 } 1252 1253 void 1254 rsu_rx_frame(struct rsu_softc *sc, uint8_t *buf, int pktlen) 1255 { 1256 struct ieee80211com *ic = &sc->sc_ic; 1257 struct ifnet *ifp = &ic->ic_if; 1258 struct ieee80211_rxinfo rxi; 1259 struct ieee80211_frame *wh; 1260 struct ieee80211_node *ni; 1261 struct r92s_rx_stat *stat; 1262 uint32_t rxdw0, rxdw3; 1263 struct mbuf *m; 1264 uint8_t rate; 1265 int8_t rssi = 0; 1266 int s, infosz; 1267 1268 stat = (struct r92s_rx_stat *)buf; 1269 rxdw0 = letoh32(stat->rxdw0); 1270 rxdw3 = letoh32(stat->rxdw3); 1271 1272 if (__predict_false(rxdw0 & R92S_RXDW0_CRCERR)) { 1273 ifp->if_ierrors++; 1274 return; 1275 } 1276 if (__predict_false(pktlen < sizeof(*wh) || pktlen > MCLBYTES)) { 1277 ifp->if_ierrors++; 1278 return; 1279 } 1280 1281 rate = MS(rxdw3, R92S_RXDW3_RATE); 1282 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 1283 1284 /* Get RSSI from PHY status descriptor if present. */ 1285 if (infosz != 0) 1286 rssi = rsu_get_rssi(sc, rate, &stat[1]); 1287 1288 DPRINTFN(5, ("Rx frame len=%d rate=%d infosz=%d rssi=%d\n", 1289 pktlen, rate, infosz, rssi)); 1290 1291 MGETHDR(m, M_DONTWAIT, MT_DATA); 1292 if (__predict_false(m == NULL)) { 1293 ifp->if_ierrors++; 1294 return; 1295 } 1296 if (pktlen > MHLEN) { 1297 MCLGET(m, M_DONTWAIT); 1298 if (__predict_false(!(m->m_flags & M_EXT))) { 1299 ifp->if_ierrors++; 1300 m_freem(m); 1301 return; 1302 } 1303 } 1304 /* Finalize mbuf. */ 1305 /* Hardware does Rx TCP checksum offload. */ 1306 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 1307 if (__predict_true(rxdw3 & R92S_RXDW3_TCPCHKRPT)) 1308 m->m_pkthdr.csum_flags |= M_TCP_CSUM_IN_OK; 1309 else 1310 m->m_pkthdr.csum_flags |= M_TCP_CSUM_IN_BAD; 1311 } 1312 wh = (struct ieee80211_frame *)((uint8_t *)&stat[1] + infosz); 1313 memcpy(mtod(m, uint8_t *), wh, pktlen); 1314 m->m_pkthdr.len = m->m_len = pktlen; 1315 1316 s = splnet(); 1317 #if NBPFILTER > 0 1318 if (__predict_false(sc->sc_drvbpf != NULL)) { 1319 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 1320 struct mbuf mb; 1321 1322 tap->wr_flags = 0; 1323 /* Map HW rate index to 802.11 rate. */ 1324 tap->wr_flags = 2; 1325 if (!(rxdw3 & R92S_RXDW3_HTC)) { 1326 switch (rate) { 1327 /* CCK. */ 1328 case 0: tap->wr_rate = 2; break; 1329 case 1: tap->wr_rate = 4; break; 1330 case 2: tap->wr_rate = 11; break; 1331 case 3: tap->wr_rate = 22; break; 1332 /* OFDM. */ 1333 case 4: tap->wr_rate = 12; break; 1334 case 5: tap->wr_rate = 18; break; 1335 case 6: tap->wr_rate = 24; break; 1336 case 7: tap->wr_rate = 36; break; 1337 case 8: tap->wr_rate = 48; break; 1338 case 9: tap->wr_rate = 72; break; 1339 case 10: tap->wr_rate = 96; break; 1340 case 11: tap->wr_rate = 108; break; 1341 } 1342 } else if (rate >= 12) { /* MCS0~15. */ 1343 /* Bit 7 set means HT MCS instead of rate. */ 1344 tap->wr_rate = 0x80 | (rate - 12); 1345 } 1346 tap->wr_dbm_antsignal = rssi; 1347 tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1348 tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1349 1350 mb.m_data = (caddr_t)tap; 1351 mb.m_len = sc->sc_rxtap_len; 1352 mb.m_next = m; 1353 mb.m_nextpkt = NULL; 1354 mb.m_type = 0; 1355 mb.m_flags = 0; 1356 bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN); 1357 } 1358 #endif 1359 1360 ni = ieee80211_find_rxnode(ic, wh); 1361 rxi.rxi_flags = 0; 1362 rxi.rxi_rssi = rssi; 1363 rxi.rxi_tstamp = 0; /* Unused. */ 1364 ieee80211_input(ifp, m, ni, &rxi); 1365 /* Node is no longer needed. */ 1366 ieee80211_release_node(ic, ni); 1367 splx(s); 1368 } 1369 1370 void 1371 rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 1372 { 1373 struct r92s_rx_stat *stat; 1374 uint32_t rxdw0; 1375 int totlen, pktlen, infosz, npkts; 1376 1377 /* Get the number of encapsulated frames. */ 1378 stat = (struct r92s_rx_stat *)buf; 1379 npkts = MS(letoh32(stat->rxdw2), R92S_RXDW2_PKTCNT); 1380 DPRINTFN(6, ("Rx %d frames in one chunk\n", npkts)); 1381 1382 /* Process all of them. */ 1383 while (npkts-- > 0) { 1384 if (__predict_false(len < sizeof(*stat))) 1385 break; 1386 stat = (struct r92s_rx_stat *)buf; 1387 rxdw0 = letoh32(stat->rxdw0); 1388 1389 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 1390 if (__predict_false(pktlen == 0)) 1391 break; 1392 1393 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 1394 1395 /* Make sure everything fits in xfer. */ 1396 totlen = sizeof(*stat) + infosz + pktlen; 1397 if (__predict_false(totlen > len)) 1398 break; 1399 1400 /* Process 802.11 frame. */ 1401 rsu_rx_frame(sc, buf, pktlen); 1402 1403 /* Next chunk is 128-byte aligned. */ 1404 totlen = (totlen + 127) & ~127; 1405 buf += totlen; 1406 len -= totlen; 1407 } 1408 } 1409 1410 void 1411 rsu_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 1412 { 1413 struct rsu_rx_data *data = priv; 1414 struct rsu_softc *sc = data->sc; 1415 struct r92s_rx_stat *stat; 1416 struct ifnet *ifp = &sc->sc_ic.ic_if; 1417 int len; 1418 1419 if (__predict_false(status != USBD_NORMAL_COMPLETION)) { 1420 DPRINTF(("RX status=%d\n", status)); 1421 if (status == USBD_STALLED) 1422 usbd_clear_endpoint_stall_async(data->pipe); 1423 if (status != USBD_CANCELLED) 1424 goto resubmit; 1425 return; 1426 } 1427 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 1428 1429 if (__predict_false(len < sizeof(*stat))) { 1430 DPRINTF(("xfer too short %d\n", len)); 1431 ifp->if_ierrors++; 1432 goto resubmit; 1433 } 1434 if (len > RSU_RXBUFSZ) { 1435 DPRINTF(("xfer too large %d\n", len)); 1436 ifp->if_ierrors++; 1437 goto resubmit; 1438 } 1439 1440 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 1441 stat = (struct r92s_rx_stat *)data->buf; 1442 if ((letoh32(stat->rxdw1) & 0x1ff) == 0x1ff) 1443 rsu_rx_multi_event(sc, data->buf, len); 1444 else 1445 rsu_rx_multi_frame(sc, data->buf, len); 1446 1447 resubmit: 1448 /* Setup a new transfer. */ 1449 usbd_setup_xfer(xfer, data->pipe, data, data->buf, RSU_RXBUFSZ, 1450 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, rsu_rxeof); 1451 (void)usbd_transfer(xfer); 1452 } 1453 1454 void 1455 rsu_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 1456 { 1457 struct rsu_tx_data *data = priv; 1458 struct rsu_softc *sc = data->sc; 1459 struct ifnet *ifp = &sc->sc_ic.ic_if; 1460 int s; 1461 1462 s = splnet(); 1463 /* Put this Tx buffer back to our free list. */ 1464 TAILQ_INSERT_TAIL(&sc->tx_free_list, data, next); 1465 1466 if (__predict_false(status != USBD_NORMAL_COMPLETION)) { 1467 DPRINTF(("TX status=%d\n", status)); 1468 if (status == USBD_STALLED) 1469 usbd_clear_endpoint_stall_async(data->pipe); 1470 ifp->if_oerrors++; 1471 splx(s); 1472 return; 1473 } 1474 sc->sc_tx_timer = 0; 1475 1476 /* We just released a Tx buffer, notify Tx. */ 1477 if (ifq_is_oactive(&ifp->if_snd)) { 1478 ifq_clr_oactive(&ifp->if_snd); 1479 rsu_start(ifp); 1480 } 1481 splx(s); 1482 } 1483 1484 int 1485 rsu_tx(struct rsu_softc *sc, struct mbuf *m, struct ieee80211_node *ni) 1486 { 1487 struct ieee80211com *ic = &sc->sc_ic; 1488 struct ieee80211_frame *wh; 1489 struct ieee80211_key *k = NULL; 1490 struct rsu_tx_data *data; 1491 struct r92s_tx_desc *txd; 1492 struct usbd_pipe *pipe; 1493 uint16_t qos; 1494 uint8_t type, qid, tid = 0; 1495 int hasqos, xferlen, error; 1496 1497 wh = mtod(m, struct ieee80211_frame *); 1498 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1499 1500 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1501 k = ieee80211_get_txkey(ic, wh, ni); 1502 if ((m = ieee80211_encrypt(ic, m, k)) == NULL) 1503 return (ENOBUFS); 1504 wh = mtod(m, struct ieee80211_frame *); 1505 } 1506 if ((hasqos = ieee80211_has_qos(wh))) { 1507 qos = ieee80211_get_qos(wh); 1508 tid = qos & IEEE80211_QOS_TID; 1509 qid = rsu_ac2qid[ieee80211_up_to_ac(ic, tid)]; 1510 } else 1511 qid = RSU_QID_BE; 1512 1513 /* Get the USB pipe to use for this queue id. */ 1514 pipe = sc->pipe[sc->qid2idx[qid]]; 1515 1516 /* Grab a Tx buffer from our free list. */ 1517 data = TAILQ_FIRST(&sc->tx_free_list); 1518 TAILQ_REMOVE(&sc->tx_free_list, data, next); 1519 1520 /* Fill Tx descriptor. */ 1521 txd = (struct r92s_tx_desc *)data->buf; 1522 memset(txd, 0, sizeof(*txd)); 1523 1524 txd->txdw0 |= htole32( 1525 SM(R92S_TXDW0_PKTLEN, m->m_pkthdr.len) | 1526 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1527 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1528 1529 txd->txdw1 |= htole32( 1530 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | 1531 SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_BE)); 1532 if (!hasqos) 1533 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 1534 #ifdef notyet 1535 if (k != NULL) { 1536 switch (k->k_cipher) { 1537 case IEEE80211_CIPHER_WEP40: 1538 case IEEE80211_CIPHER_WEP104: 1539 cipher = R92S_TXDW1_CIPHER_WEP; 1540 break; 1541 case IEEE80211_CIPHER_TKIP: 1542 cipher = R92S_TXDW1_CIPHER_TKIP; 1543 break; 1544 case IEEE80211_CIPHER_CCMP: 1545 cipher = R92S_TXDW1_CIPHER_AES; 1546 break; 1547 default: 1548 cipher = R92S_TXDW1_CIPHER_NONE; 1549 } 1550 txd->txdw1 |= htole32( 1551 SM(R92S_TXDW1_CIPHER, cipher) | 1552 SM(R92S_TXDW1_KEYIDX, k->k_id)); 1553 } 1554 #endif 1555 txd->txdw2 |= htole32(R92S_TXDW2_BK); 1556 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1557 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 1558 /* 1559 * Firmware will use and increment the sequence number for the 1560 * specified TID. 1561 */ 1562 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, tid)); 1563 1564 #if NBPFILTER > 0 1565 if (__predict_false(sc->sc_drvbpf != NULL)) { 1566 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 1567 struct mbuf mb; 1568 1569 tap->wt_flags = 0; 1570 tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1571 tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1572 1573 mb.m_data = (caddr_t)tap; 1574 mb.m_len = sc->sc_txtap_len; 1575 mb.m_next = m; 1576 mb.m_nextpkt = NULL; 1577 mb.m_type = 0; 1578 mb.m_flags = 0; 1579 bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_OUT); 1580 } 1581 #endif 1582 1583 xferlen = sizeof(*txd) + m->m_pkthdr.len; 1584 m_copydata(m, 0, m->m_pkthdr.len, (caddr_t)&txd[1]); 1585 m_freem(m); 1586 1587 data->pipe = pipe; 1588 usbd_setup_xfer(data->xfer, pipe, data, data->buf, xferlen, 1589 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RSU_TX_TIMEOUT, 1590 rsu_txeof); 1591 error = usbd_transfer(data->xfer); 1592 if (__predict_false(error != USBD_IN_PROGRESS && error != 0)) { 1593 /* Put this Tx buffer back to our free list. */ 1594 TAILQ_INSERT_TAIL(&sc->tx_free_list, data, next); 1595 return (error); 1596 } 1597 ieee80211_release_node(ic, ni); 1598 return (0); 1599 } 1600 1601 /* ARGSUSED */ 1602 int 1603 rsu_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, int type, 1604 int arg1, int arg2) 1605 { 1606 return (EOPNOTSUPP); 1607 } 1608 1609 void 1610 rsu_start(struct ifnet *ifp) 1611 { 1612 struct rsu_softc *sc = ifp->if_softc; 1613 struct ieee80211com *ic = &sc->sc_ic; 1614 struct ieee80211_node *ni; 1615 struct mbuf *m; 1616 1617 if (!(ifp->if_flags & IFF_RUNNING) || ifq_is_oactive(&ifp->if_snd)) 1618 return; 1619 1620 for (;;) { 1621 if (TAILQ_EMPTY(&sc->tx_free_list)) { 1622 ifq_set_oactive(&ifp->if_snd); 1623 break; 1624 } 1625 if (ic->ic_state != IEEE80211_S_RUN) 1626 break; 1627 1628 /* Encapsulate and send data frames. */ 1629 IFQ_DEQUEUE(&ifp->if_snd, m); 1630 if (m == NULL) 1631 break; 1632 #if NBPFILTER > 0 1633 if (ifp->if_bpf != NULL) 1634 bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT); 1635 #endif 1636 if ((m = ieee80211_encap(ifp, m, &ni)) == NULL) 1637 continue; 1638 1639 #if NBPFILTER > 0 1640 if (ic->ic_rawbpf != NULL) 1641 bpf_mtap(ic->ic_rawbpf, m, BPF_DIRECTION_OUT); 1642 #endif 1643 if (rsu_tx(sc, m, ni) != 0) { 1644 ieee80211_release_node(ic, ni); 1645 ifp->if_oerrors++; 1646 continue; 1647 } 1648 1649 sc->sc_tx_timer = 5; 1650 ifp->if_timer = 1; 1651 } 1652 } 1653 1654 void 1655 rsu_watchdog(struct ifnet *ifp) 1656 { 1657 struct rsu_softc *sc = ifp->if_softc; 1658 1659 ifp->if_timer = 0; 1660 1661 if (sc->sc_tx_timer > 0) { 1662 if (--sc->sc_tx_timer == 0) { 1663 printf("%s: device timeout\n", sc->sc_dev.dv_xname); 1664 /* rsu_init(ifp); XXX needs a process context! */ 1665 ifp->if_oerrors++; 1666 return; 1667 } 1668 ifp->if_timer = 1; 1669 } 1670 ieee80211_watchdog(ifp); 1671 } 1672 1673 int 1674 rsu_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1675 { 1676 struct rsu_softc *sc = ifp->if_softc; 1677 int s, error = 0; 1678 1679 if (usbd_is_dying(sc->sc_udev)) 1680 return ENXIO; 1681 1682 usbd_ref_incr(sc->sc_udev); 1683 1684 s = splnet(); 1685 1686 switch (cmd) { 1687 case SIOCSIFADDR: 1688 ifp->if_flags |= IFF_UP; 1689 /* FALLTHROUGH */ 1690 case SIOCSIFFLAGS: 1691 if (ifp->if_flags & IFF_UP) { 1692 if (!(ifp->if_flags & IFF_RUNNING)) 1693 rsu_init(ifp); 1694 } else { 1695 if (ifp->if_flags & IFF_RUNNING) 1696 rsu_stop(ifp); 1697 } 1698 break; 1699 default: 1700 error = ieee80211_ioctl(ifp, cmd, data); 1701 } 1702 1703 if (error == ENETRESET) { 1704 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1705 (IFF_UP | IFF_RUNNING)) { 1706 rsu_stop(ifp); 1707 rsu_init(ifp); 1708 } 1709 error = 0; 1710 } 1711 splx(s); 1712 1713 usbd_ref_decr(sc->sc_udev); 1714 1715 return (error); 1716 } 1717 1718 /* 1719 * Power on sequence for A-cut adapters. 1720 */ 1721 void 1722 rsu_power_on_acut(struct rsu_softc *sc) 1723 { 1724 uint32_t reg; 1725 1726 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 1727 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 1728 1729 /* Enable AFE macro block's bandgap and Mbias. */ 1730 rsu_write_1(sc, R92S_AFE_MISC, 1731 rsu_read_1(sc, R92S_AFE_MISC) | 1732 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 1733 /* Enable LDOA15 block. */ 1734 rsu_write_1(sc, R92S_LDOA15_CTRL, 1735 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 1736 1737 rsu_write_1(sc, R92S_SPS1_CTRL, 1738 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 1739 usbd_delay_ms(sc->sc_udev, 2); 1740 /* Enable switch regulator block. */ 1741 rsu_write_1(sc, R92S_SPS1_CTRL, 1742 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 1743 1744 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 1745 1746 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 1747 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 1748 1749 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 1750 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 1751 1752 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 1753 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 1754 1755 /* Enable AFE clock. */ 1756 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 1757 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 1758 /* Enable AFE PLL macro block. */ 1759 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 1760 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 1761 /* Attach AFE PLL to MACTOP/BB. */ 1762 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 1763 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 1764 1765 /* Switch to 40MHz clock instead of 80MHz. */ 1766 rsu_write_2(sc, R92S_SYS_CLKR, 1767 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 1768 1769 /* Enable MAC clock. */ 1770 rsu_write_2(sc, R92S_SYS_CLKR, 1771 rsu_read_2(sc, R92S_SYS_CLKR) | 1772 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 1773 1774 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 1775 1776 /* Enable digital core and IOREG R/W. */ 1777 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 1778 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 1779 1780 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 1781 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 1782 1783 /* Switch the control path to firmware. */ 1784 reg = rsu_read_2(sc, R92S_SYS_CLKR); 1785 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 1786 rsu_write_2(sc, R92S_SYS_CLKR, reg); 1787 1788 rsu_write_2(sc, R92S_CR, 0x37fc); 1789 1790 /* Fix USB RX FIFO issue. */ 1791 rsu_write_1(sc, 0xfe5c, 1792 rsu_read_1(sc, 0xfe5c) | 0x80); 1793 rsu_write_1(sc, 0x00ab, 1794 rsu_read_1(sc, 0x00ab) | 0xc0); 1795 1796 rsu_write_1(sc, R92S_SYS_CLKR, 1797 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 1798 } 1799 1800 /* 1801 * Power on sequence for B-cut and C-cut adapters. 1802 */ 1803 void 1804 rsu_power_on_bcut(struct rsu_softc *sc) 1805 { 1806 uint32_t reg; 1807 int ntries; 1808 1809 /* Prevent eFuse leakage. */ 1810 rsu_write_1(sc, 0x37, 0xb0); 1811 usbd_delay_ms(sc->sc_udev, 10); 1812 rsu_write_1(sc, 0x37, 0x30); 1813 1814 /* Switch the control path to hardware. */ 1815 reg = rsu_read_2(sc, R92S_SYS_CLKR); 1816 if (reg & R92S_FWHW_SEL) { 1817 rsu_write_2(sc, R92S_SYS_CLKR, 1818 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 1819 } 1820 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 1821 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 1822 DELAY(1000); 1823 1824 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 1825 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 1826 1827 reg = rsu_read_1(sc, R92S_AFE_MISC); 1828 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 1829 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 1830 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 1831 1832 /* Enable PLL. */ 1833 rsu_write_1(sc, R92S_LDOA15_CTRL, 1834 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 1835 1836 rsu_write_1(sc, R92S_LDOV12D_CTRL, 1837 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 1838 1839 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 1840 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 1841 1842 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 1843 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 1844 1845 /* Support 64KB IMEM. */ 1846 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 1847 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 1848 1849 /* Enable AFE clock. */ 1850 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 1851 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 1852 /* Enable AFE PLL macro block. */ 1853 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 1854 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 1855 DELAY(500); 1856 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 1857 DELAY(500); 1858 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 1859 DELAY(500); 1860 1861 /* Attach AFE PLL to MACTOP/BB. */ 1862 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 1863 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 1864 1865 /* Switch to 40MHz clock. */ 1866 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 1867 /* Disable CPU clock and 80MHz SSC. */ 1868 rsu_write_1(sc, R92S_SYS_CLKR, 1869 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 1870 /* Enable MAC clock. */ 1871 rsu_write_2(sc, R92S_SYS_CLKR, 1872 rsu_read_2(sc, R92S_SYS_CLKR) | 1873 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 1874 1875 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 1876 1877 /* Enable digital core and IOREG R/W. */ 1878 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 1879 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 1880 1881 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 1882 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 1883 1884 /* Switch the control path to firmware. */ 1885 reg = rsu_read_2(sc, R92S_SYS_CLKR); 1886 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 1887 rsu_write_2(sc, R92S_SYS_CLKR, reg); 1888 1889 rsu_write_2(sc, R92S_CR, 0x37fc); 1890 1891 /* Fix USB RX FIFO issue. */ 1892 rsu_write_1(sc, 0xfe5c, 1893 rsu_read_1(sc, 0xfe5c) | 0x80); 1894 1895 rsu_write_1(sc, R92S_SYS_CLKR, 1896 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 1897 1898 rsu_write_1(sc, 0xfe1c, 0x80); 1899 1900 /* Make sure TxDMA is ready to download firmware. */ 1901 for (ntries = 0; ntries < 20; ntries++) { 1902 reg = rsu_read_1(sc, R92S_TCR); 1903 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 1904 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 1905 break; 1906 DELAY(5); 1907 } 1908 if (ntries == 20) { 1909 /* Reset TxDMA. */ 1910 reg = rsu_read_1(sc, R92S_CR); 1911 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 1912 DELAY(2); 1913 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 1914 } 1915 } 1916 1917 void 1918 rsu_power_off(struct rsu_softc *sc) 1919 { 1920 /* Turn RF off. */ 1921 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 1922 usbd_delay_ms(sc->sc_udev, 5); 1923 1924 /* Turn MAC off. */ 1925 /* Switch control path. */ 1926 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 1927 /* Reset MACTOP. */ 1928 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 1929 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 1930 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 1931 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 1932 1933 /* Disable AFE PLL. */ 1934 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 1935 /* Disable A15V. */ 1936 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 1937 /* Disable eFuse 1.2V. */ 1938 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 1939 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 1940 /* Enable AFE macro block's bandgap and Mbias. */ 1941 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 1942 /* Disable 1.6V LDO. */ 1943 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 1944 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 1945 } 1946 1947 int 1948 rsu_fw_loadsection(struct rsu_softc *sc, uint8_t *buf, int len) 1949 { 1950 struct rsu_tx_data *data; 1951 struct r92s_tx_desc *txd; 1952 struct usbd_pipe *pipe; 1953 int mlen, error; 1954 1955 data = sc->fwcmd_data; 1956 pipe = sc->pipe[sc->qid2idx[RSU_QID_VO]]; 1957 txd = (struct r92s_tx_desc *)data->buf; 1958 while (len > 0) { 1959 memset(txd, 0, sizeof(*txd)); 1960 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 1961 /* Last chunk. */ 1962 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 1963 mlen = len; 1964 } else 1965 mlen = RSU_TXBUFSZ - sizeof(*txd); 1966 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 1967 memcpy(&txd[1], buf, mlen); 1968 1969 usbd_setup_xfer(data->xfer, pipe, NULL, data->buf, 1970 sizeof(*txd) + mlen, 1971 USBD_SHORT_XFER_OK | USBD_NO_COPY | USBD_SYNCHRONOUS, 1972 RSU_TX_TIMEOUT, NULL); 1973 error = usbd_transfer(data->xfer); 1974 if (error != 0) 1975 return (error); 1976 buf += mlen; 1977 len -= mlen; 1978 } 1979 return (0); 1980 } 1981 1982 int 1983 rsu_load_firmware(struct rsu_softc *sc) 1984 { 1985 struct ieee80211com *ic = &sc->sc_ic; 1986 struct r92s_fw_hdr *hdr; 1987 struct r92s_fw_priv *dmem; 1988 uint8_t *imem, *emem; 1989 int imemsz, ememsz; 1990 u_char *fw; 1991 size_t size; 1992 uint32_t reg; 1993 int ntries, error; 1994 1995 /* Read firmware image from the filesystem. */ 1996 if ((error = loadfirmware("rsu-rtl8712fw", &fw, &size)) != 0) { 1997 printf("%s: failed loadfirmware of file %s (error %d)\n", 1998 sc->sc_dev.dv_xname, "rsu-rtl8712fw", error); 1999 return (error); 2000 } 2001 if (size < sizeof(*hdr)) { 2002 printf("%s: firmware too short\n", sc->sc_dev.dv_xname); 2003 error = EINVAL; 2004 goto fail; 2005 } 2006 hdr = (struct r92s_fw_hdr *)fw; 2007 if (hdr->signature != htole16(0x8712) && 2008 hdr->signature != htole16(0x8192)) { 2009 printf("%s: invalid firmware signature 0x%x\n", 2010 sc->sc_dev.dv_xname, letoh16(hdr->signature)); 2011 error = EINVAL; 2012 goto fail; 2013 } 2014 DPRINTF(("FW V%d %02x-%02x %02x:%02x\n", letoh16(hdr->version), 2015 hdr->month, hdr->day, hdr->hour, hdr->minute)); 2016 2017 /* Make sure that driver and firmware are in sync. */ 2018 if (hdr->privsz != htole32(sizeof(*dmem))) { 2019 printf("%s: unsupported firmware image\n", 2020 sc->sc_dev.dv_xname); 2021 error = EINVAL; 2022 goto fail; 2023 } 2024 /* Get FW sections sizes. */ 2025 imemsz = letoh32(hdr->imemsz); 2026 ememsz = letoh32(hdr->sramsz); 2027 /* Check that all FW sections fit in image. */ 2028 if (size < sizeof(*hdr) + imemsz + ememsz) { 2029 printf("%s: firmware too short\n", sc->sc_dev.dv_xname); 2030 error = EINVAL; 2031 goto fail; 2032 } 2033 imem = (uint8_t *)&hdr[1]; 2034 emem = imem + imemsz; 2035 2036 /* Load IMEM section. */ 2037 error = rsu_fw_loadsection(sc, imem, imemsz); 2038 if (error != 0) { 2039 printf("%s: could not load firmware section %s\n", 2040 sc->sc_dev.dv_xname, "IMEM"); 2041 goto fail; 2042 } 2043 /* Wait for load to complete. */ 2044 for (ntries = 0; ntries < 10; ntries++) { 2045 reg = rsu_read_2(sc, R92S_TCR); 2046 if (reg & R92S_TCR_IMEM_CODE_DONE) 2047 break; 2048 DELAY(10); 2049 } 2050 if (ntries == 10 || !(reg & R92S_TCR_IMEM_CHK_RPT)) { 2051 printf("%s: timeout waiting for %s transfer\n", 2052 sc->sc_dev.dv_xname, "IMEM"); 2053 error = ETIMEDOUT; 2054 goto fail; 2055 } 2056 2057 /* Load EMEM section. */ 2058 error = rsu_fw_loadsection(sc, emem, ememsz); 2059 if (error != 0) { 2060 printf("%s: could not load firmware section %s\n", 2061 sc->sc_dev.dv_xname, "EMEM"); 2062 goto fail; 2063 } 2064 /* Wait for load to complete. */ 2065 for (ntries = 0; ntries < 10; ntries++) { 2066 reg = rsu_read_2(sc, R92S_TCR); 2067 if (reg & R92S_TCR_EMEM_CODE_DONE) 2068 break; 2069 DELAY(10); 2070 } 2071 if (ntries == 10 || !(reg & R92S_TCR_EMEM_CHK_RPT)) { 2072 printf("%s: timeout waiting for %s transfer\n", 2073 sc->sc_dev.dv_xname, "EMEM"); 2074 error = ETIMEDOUT; 2075 goto fail; 2076 } 2077 2078 /* Enable CPU. */ 2079 rsu_write_1(sc, R92S_SYS_CLKR, 2080 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 2081 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 2082 printf("%s: could not enable system clock\n", 2083 sc->sc_dev.dv_xname); 2084 error = EIO; 2085 goto fail; 2086 } 2087 rsu_write_2(sc, R92S_SYS_FUNC_EN, 2088 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 2089 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 2090 printf("%s: could not enable microcontroller\n", 2091 sc->sc_dev.dv_xname); 2092 error = EIO; 2093 goto fail; 2094 } 2095 /* Wait for CPU to initialize. */ 2096 for (ntries = 0; ntries < 100; ntries++) { 2097 if (rsu_read_2(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 2098 break; 2099 DELAY(1000); 2100 } 2101 if (ntries == 100) { 2102 printf("%s: timeout waiting for microcontroller\n", 2103 sc->sc_dev.dv_xname); 2104 error = ETIMEDOUT; 2105 goto fail; 2106 } 2107 2108 /* Update DMEM section before loading. */ 2109 dmem = &hdr->priv; 2110 memset(dmem, 0, sizeof(*dmem)); 2111 dmem->hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 2112 dmem->nendpoints = sc->npipes; 2113 dmem->rf_config = 0x12; /* 1T2R */ 2114 dmem->vcs_type = R92S_VCS_TYPE_AUTO; 2115 dmem->vcs_mode = R92S_VCS_MODE_RTS_CTS; 2116 dmem->bw40_en = (ic->ic_htcaps & IEEE80211_HTCAP_CBW20_40) != 0; 2117 dmem->turbo_mode = 1; 2118 /* Load DMEM section. */ 2119 error = rsu_fw_loadsection(sc, (uint8_t *)dmem, sizeof(*dmem)); 2120 if (error != 0) { 2121 printf("%s: could not load firmware section %s\n", 2122 sc->sc_dev.dv_xname, "DMEM"); 2123 goto fail; 2124 } 2125 /* Wait for load to complete. */ 2126 for (ntries = 0; ntries < 100; ntries++) { 2127 if (rsu_read_2(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 2128 break; 2129 DELAY(1000); 2130 } 2131 if (ntries == 100) { 2132 printf("%s: timeout waiting for %s transfer\n", 2133 sc->sc_dev.dv_xname, "DMEM"); 2134 error = ETIMEDOUT; 2135 goto fail; 2136 } 2137 /* Wait for firmware readiness. */ 2138 for (ntries = 0; ntries < 60; ntries++) { 2139 if (!(rsu_read_2(sc, R92S_TCR) & R92S_TCR_FWRDY)) 2140 break; 2141 DELAY(1000); 2142 } 2143 if (ntries == 60) { 2144 printf("%s: timeout waiting for firmware readiness\n", 2145 sc->sc_dev.dv_xname); 2146 error = ETIMEDOUT; 2147 goto fail; 2148 } 2149 fail: 2150 free(fw, M_DEVBUF, size); 2151 return (error); 2152 } 2153 2154 int 2155 rsu_init(struct ifnet *ifp) 2156 { 2157 struct rsu_softc *sc = ifp->if_softc; 2158 struct ieee80211com *ic = &sc->sc_ic; 2159 struct r92s_set_pwr_mode cmd; 2160 struct rsu_rx_data *data; 2161 int i, error; 2162 2163 /* Init host async commands ring. */ 2164 sc->cmdq.cur = sc->cmdq.next = sc->cmdq.queued = 0; 2165 2166 /* Allocate Tx/Rx buffers. */ 2167 error = rsu_alloc_rx_list(sc); 2168 if (error != 0) { 2169 printf("%s: could not allocate Rx buffers\n", 2170 sc->sc_dev.dv_xname); 2171 goto fail; 2172 } 2173 error = rsu_alloc_tx_list(sc); 2174 if (error != 0) { 2175 printf("%s: could not allocate Tx buffers\n", 2176 sc->sc_dev.dv_xname); 2177 goto fail; 2178 } 2179 /* Reserve one Tx buffer for firmware commands. */ 2180 sc->fwcmd_data = TAILQ_FIRST(&sc->tx_free_list); 2181 TAILQ_REMOVE(&sc->tx_free_list, sc->fwcmd_data, next); 2182 2183 /* Power on adapter. */ 2184 if (sc->cut == 1) 2185 rsu_power_on_acut(sc); 2186 else 2187 rsu_power_on_bcut(sc); 2188 /* Load firmware. */ 2189 error = rsu_load_firmware(sc); 2190 if (error != 0) 2191 goto fail; 2192 2193 /* Enable Rx TCP checksum offload. */ 2194 rsu_write_4(sc, R92S_RCR, 2195 rsu_read_4(sc, R92S_RCR) | 0x04000000); 2196 /* Append PHY status. */ 2197 rsu_write_4(sc, R92S_RCR, 2198 rsu_read_4(sc, R92S_RCR) | 0x02000000); 2199 2200 rsu_write_4(sc, R92S_CR, 2201 rsu_read_4(sc, R92S_CR) & ~0xff000000); 2202 2203 /* Use 128 bytes pages. */ 2204 rsu_write_1(sc, 0x00b5, 2205 rsu_read_1(sc, 0x00b5) | 0x01); 2206 /* Enable USB Rx aggregation. */ 2207 rsu_write_1(sc, 0x00bd, 2208 rsu_read_1(sc, 0x00bd) | 0x80); 2209 /* Set USB Rx aggregation threshold. */ 2210 rsu_write_1(sc, 0x00d9, 0x01); 2211 /* Set USB Rx aggregation timeout (1.7ms/4). */ 2212 rsu_write_1(sc, 0xfe5b, 0x04); 2213 /* Fix USB Rx FIFO issue. */ 2214 rsu_write_1(sc, 0xfe5c, 2215 rsu_read_1(sc, 0xfe5c) | 0x80); 2216 2217 /* Set MAC address. */ 2218 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 2219 rsu_write_region_1(sc, R92S_MACID, ic->ic_myaddr, IEEE80211_ADDR_LEN); 2220 2221 /* Queue Rx xfers (XXX C2H pipe for 11-pipe configurations?) */ 2222 for (i = 0; i < RSU_RX_LIST_COUNT; i++) { 2223 data = &sc->rx_data[i]; 2224 2225 data->pipe = sc->pipe[sc->qid2idx[RSU_QID_RXOFF]]; 2226 usbd_setup_xfer(data->xfer, data->pipe, data, data->buf, 2227 RSU_RXBUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 2228 USBD_NO_TIMEOUT, rsu_rxeof); 2229 error = usbd_transfer(data->xfer); 2230 if (error != 0 && error != USBD_IN_PROGRESS) 2231 goto fail; 2232 } 2233 2234 /* NB: it really takes that long for firmware to boot. */ 2235 usbd_delay_ms(sc->sc_udev, 1500); 2236 2237 DPRINTF(("setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2238 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2239 IEEE80211_ADDR_LEN); 2240 if (error != 0) { 2241 printf("%s: could not set MAC address\n", sc->sc_dev.dv_xname); 2242 goto fail; 2243 } 2244 2245 rsu_write_1(sc, R92S_USB_HRPWM, 2246 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 2247 2248 memset(&cmd, 0, sizeof(cmd)); 2249 cmd.mode = R92S_PS_MODE_ACTIVE; 2250 DPRINTF(("setting ps mode to %d\n", cmd.mode)); 2251 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 2252 if (error != 0) { 2253 printf("%s: could not set PS mode\n", sc->sc_dev.dv_xname); 2254 goto fail; 2255 } 2256 2257 if (ic->ic_htcaps & IEEE80211_HTCAP_CBW20_40) { 2258 /* Enable 40MHz mode. */ 2259 error = rsu_fw_iocmd(sc, 2260 SM(R92S_IOCMD_CLASS, 0xf4) | 2261 SM(R92S_IOCMD_INDEX, 0x00) | 2262 SM(R92S_IOCMD_VALUE, 0x0007)); 2263 if (error != 0) { 2264 printf("%s: could not enable 40MHz mode\n", 2265 sc->sc_dev.dv_xname); 2266 goto fail; 2267 } 2268 } 2269 2270 /* Set default channel. */ 2271 ic->ic_bss->ni_chan = ic->ic_ibss_chan; 2272 2273 /* We're ready to go. */ 2274 ifp->if_flags |= IFF_RUNNING; 2275 ifq_clr_oactive(&ifp->if_snd); 2276 2277 #ifdef notyet 2278 if (ic->ic_flags & IEEE80211_F_WEPON) { 2279 /* Install WEP keys. */ 2280 for (i = 0; i < IEEE80211_WEP_NKID; i++) 2281 rsu_set_key(ic, NULL, &ic->ic_nw_keys[i]); 2282 rsu_wait_async(sc); 2283 } 2284 #endif 2285 2286 sc->scan_pass = 0; 2287 ieee80211_begin_scan(ifp); 2288 return (0); 2289 fail: 2290 rsu_stop(ifp); 2291 return (error); 2292 } 2293 2294 void 2295 rsu_stop(struct ifnet *ifp) 2296 { 2297 struct rsu_softc *sc = ifp->if_softc; 2298 struct ieee80211com *ic = &sc->sc_ic; 2299 int i, s; 2300 2301 sc->sc_tx_timer = 0; 2302 ifp->if_timer = 0; 2303 ifp->if_flags &= ~IFF_RUNNING; 2304 ifq_clr_oactive(&ifp->if_snd); 2305 2306 /* In case we were scanning, release the scan "lock". */ 2307 ic->ic_scan_lock = IEEE80211_SCAN_UNLOCKED; 2308 2309 s = splusb(); 2310 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2311 /* Wait for all async commands to complete. */ 2312 rsu_wait_async(sc); 2313 splx(s); 2314 2315 timeout_del(&sc->calib_to); 2316 2317 /* Power off adapter. */ 2318 rsu_power_off(sc); 2319 2320 /* Abort Tx/Rx. */ 2321 for (i = 0; i < sc->npipes; i++) 2322 usbd_abort_pipe(sc->pipe[i]); 2323 2324 /* Free Tx/Rx buffers. */ 2325 rsu_free_tx_list(sc); 2326 rsu_free_rx_list(sc); 2327 } 2328