1 /* $OpenBSD: if_rsu.c,v 1.17 2013/04/15 09:23:01 mglocker 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 #include <sys/cdefs.h> 19 __FBSDID("$FreeBSD$"); 20 21 /* 22 * Driver for Realtek RTL8188SU/RTL8191SU/RTL8192SU. 23 * 24 * TODO: 25 * o h/w crypto 26 * o hostap / ibss / mesh 27 * o sensible RSSI levels 28 * o power-save operation 29 */ 30 31 #include "opt_wlan.h" 32 33 #include <sys/param.h> 34 #include <sys/endian.h> 35 #include <sys/sockio.h> 36 #include <sys/mbuf.h> 37 #include <sys/kernel.h> 38 #include <sys/socket.h> 39 #include <sys/systm.h> 40 #include <sys/conf.h> 41 #include <sys/bus.h> 42 #include <sys/rman.h> 43 #include <sys/firmware.h> 44 #include <sys/module.h> 45 46 #include <machine/bus.h> 47 #include <machine/resource.h> 48 49 #include <net/bpf.h> 50 #include <net/if.h> 51 #include <net/if_var.h> 52 #include <net/if_arp.h> 53 #include <net/if_dl.h> 54 #include <net/if_media.h> 55 #include <net/if_types.h> 56 57 #include <netinet/in.h> 58 #include <netinet/in_systm.h> 59 #include <netinet/in_var.h> 60 #include <netinet/if_ether.h> 61 #include <netinet/ip.h> 62 63 #include <net80211/ieee80211_var.h> 64 #include <net80211/ieee80211_regdomain.h> 65 #include <net80211/ieee80211_radiotap.h> 66 67 #include <dev/usb/usb.h> 68 #include <dev/usb/usbdi.h> 69 #include "usbdevs.h" 70 71 #define USB_DEBUG_VAR rsu_debug 72 #include <dev/usb/usb_debug.h> 73 74 #include <dev/usb/wlan/if_rsureg.h> 75 76 #ifdef USB_DEBUG 77 static int rsu_debug = 0; 78 SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW, 0, "USB rsu"); 79 SYSCTL_INT(_hw_usb_rsu, OID_AUTO, debug, CTLFLAG_RWTUN, &rsu_debug, 0, 80 "Debug level"); 81 #define RSU_DPRINTF(_sc, _flg, ...) \ 82 do \ 83 if (((_flg) == (RSU_DEBUG_ANY)) || (rsu_debug & (_flg))) \ 84 device_printf((_sc)->sc_dev, __VA_ARGS__); \ 85 while (0) 86 #else 87 #define RSU_DPRINTF(_sc, _flg, ...) 88 #endif 89 90 static int rsu_enable_11n = 1; 91 TUNABLE_INT("hw.usb.rsu.enable_11n", &rsu_enable_11n); 92 93 #define RSU_DEBUG_ANY 0xffffffff 94 #define RSU_DEBUG_TX 0x00000001 95 #define RSU_DEBUG_RX 0x00000002 96 #define RSU_DEBUG_RESET 0x00000004 97 #define RSU_DEBUG_CALIB 0x00000008 98 #define RSU_DEBUG_STATE 0x00000010 99 #define RSU_DEBUG_SCAN 0x00000020 100 #define RSU_DEBUG_FWCMD 0x00000040 101 #define RSU_DEBUG_TXDONE 0x00000080 102 #define RSU_DEBUG_FW 0x00000100 103 #define RSU_DEBUG_FWDBG 0x00000200 104 #define RSU_DEBUG_AMPDU 0x00000400 105 106 static const STRUCT_USB_HOST_ID rsu_devs[] = { 107 #define RSU_HT_NOT_SUPPORTED 0 108 #define RSU_HT_SUPPORTED 1 109 #define RSU_DEV_HT(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 110 RSU_HT_SUPPORTED) } 111 #define RSU_DEV(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 112 RSU_HT_NOT_SUPPORTED) } 113 RSU_DEV(ASUS, RTL8192SU), 114 RSU_DEV(AZUREWAVE, RTL8192SU_4), 115 RSU_DEV_HT(ACCTON, RTL8192SU), 116 RSU_DEV_HT(ASUS, USBN10), 117 RSU_DEV_HT(AZUREWAVE, RTL8192SU_1), 118 RSU_DEV_HT(AZUREWAVE, RTL8192SU_2), 119 RSU_DEV_HT(AZUREWAVE, RTL8192SU_3), 120 RSU_DEV_HT(AZUREWAVE, RTL8192SU_5), 121 RSU_DEV_HT(BELKIN, RTL8192SU_1), 122 RSU_DEV_HT(BELKIN, RTL8192SU_2), 123 RSU_DEV_HT(BELKIN, RTL8192SU_3), 124 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_1), 125 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_2), 126 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_3), 127 RSU_DEV_HT(COREGA, RTL8192SU), 128 RSU_DEV_HT(DLINK2, DWA131A1), 129 RSU_DEV_HT(DLINK2, RTL8192SU_1), 130 RSU_DEV_HT(DLINK2, RTL8192SU_2), 131 RSU_DEV_HT(EDIMAX, RTL8192SU_1), 132 RSU_DEV_HT(EDIMAX, RTL8192SU_2), 133 RSU_DEV_HT(EDIMAX, EW7622UMN), 134 RSU_DEV_HT(GUILLEMOT, HWGUN54), 135 RSU_DEV_HT(GUILLEMOT, HWNUM300), 136 RSU_DEV_HT(HAWKING, RTL8192SU_1), 137 RSU_DEV_HT(HAWKING, RTL8192SU_2), 138 RSU_DEV_HT(PLANEX2, GWUSNANO), 139 RSU_DEV_HT(REALTEK, RTL8171), 140 RSU_DEV_HT(REALTEK, RTL8172), 141 RSU_DEV_HT(REALTEK, RTL8173), 142 RSU_DEV_HT(REALTEK, RTL8174), 143 RSU_DEV_HT(REALTEK, RTL8192SU), 144 RSU_DEV_HT(REALTEK, RTL8712), 145 RSU_DEV_HT(REALTEK, RTL8713), 146 RSU_DEV_HT(SENAO, RTL8192SU_1), 147 RSU_DEV_HT(SENAO, RTL8192SU_2), 148 RSU_DEV_HT(SITECOMEU, WL349V1), 149 RSU_DEV_HT(SITECOMEU, WL353), 150 RSU_DEV_HT(SWEEX2, LW154), 151 RSU_DEV_HT(TRENDNET, TEW646UBH), 152 #undef RSU_DEV_HT 153 #undef RSU_DEV 154 }; 155 156 static device_probe_t rsu_match; 157 static device_attach_t rsu_attach; 158 static device_detach_t rsu_detach; 159 static usb_callback_t rsu_bulk_tx_callback_be_bk; 160 static usb_callback_t rsu_bulk_tx_callback_vi_vo; 161 static usb_callback_t rsu_bulk_tx_callback_h2c; 162 static usb_callback_t rsu_bulk_rx_callback; 163 static usb_error_t rsu_do_request(struct rsu_softc *, 164 struct usb_device_request *, void *); 165 static struct ieee80211vap * 166 rsu_vap_create(struct ieee80211com *, const char name[], 167 int, enum ieee80211_opmode, int, const uint8_t bssid[], 168 const uint8_t mac[]); 169 static void rsu_vap_delete(struct ieee80211vap *); 170 static void rsu_scan_start(struct ieee80211com *); 171 static void rsu_scan_end(struct ieee80211com *); 172 static void rsu_set_channel(struct ieee80211com *); 173 static void rsu_update_mcast(struct ieee80211com *); 174 static int rsu_alloc_rx_list(struct rsu_softc *); 175 static void rsu_free_rx_list(struct rsu_softc *); 176 static int rsu_alloc_tx_list(struct rsu_softc *); 177 static void rsu_free_tx_list(struct rsu_softc *); 178 static void rsu_free_list(struct rsu_softc *, struct rsu_data [], int); 179 static struct rsu_data *_rsu_getbuf(struct rsu_softc *); 180 static struct rsu_data *rsu_getbuf(struct rsu_softc *); 181 static void rsu_freebuf(struct rsu_softc *, struct rsu_data *); 182 static int rsu_write_region_1(struct rsu_softc *, uint16_t, uint8_t *, 183 int); 184 static void rsu_write_1(struct rsu_softc *, uint16_t, uint8_t); 185 static void rsu_write_2(struct rsu_softc *, uint16_t, uint16_t); 186 static void rsu_write_4(struct rsu_softc *, uint16_t, uint32_t); 187 static int rsu_read_region_1(struct rsu_softc *, uint16_t, uint8_t *, 188 int); 189 static uint8_t rsu_read_1(struct rsu_softc *, uint16_t); 190 static uint16_t rsu_read_2(struct rsu_softc *, uint16_t); 191 static uint32_t rsu_read_4(struct rsu_softc *, uint16_t); 192 static int rsu_fw_iocmd(struct rsu_softc *, uint32_t); 193 static uint8_t rsu_efuse_read_1(struct rsu_softc *, uint16_t); 194 static int rsu_read_rom(struct rsu_softc *); 195 static int rsu_fw_cmd(struct rsu_softc *, uint8_t, void *, int); 196 static void rsu_calib_task(void *, int); 197 static void rsu_tx_task(void *, int); 198 static int rsu_newstate(struct ieee80211vap *, enum ieee80211_state, int); 199 #ifdef notyet 200 static void rsu_set_key(struct rsu_softc *, const struct ieee80211_key *); 201 static void rsu_delete_key(struct rsu_softc *, const struct ieee80211_key *); 202 #endif 203 static int rsu_site_survey(struct rsu_softc *, struct ieee80211vap *); 204 static int rsu_join_bss(struct rsu_softc *, struct ieee80211_node *); 205 static int rsu_disconnect(struct rsu_softc *); 206 static int rsu_hwrssi_to_rssi(struct rsu_softc *, int hw_rssi); 207 static void rsu_event_survey(struct rsu_softc *, uint8_t *, int); 208 static void rsu_event_join_bss(struct rsu_softc *, uint8_t *, int); 209 static void rsu_rx_event(struct rsu_softc *, uint8_t, uint8_t *, int); 210 static void rsu_rx_multi_event(struct rsu_softc *, uint8_t *, int); 211 #if 0 212 static int8_t rsu_get_rssi(struct rsu_softc *, int, void *); 213 #endif 214 static struct mbuf * rsu_rx_frame(struct rsu_softc *, uint8_t *, int); 215 static struct mbuf * rsu_rx_multi_frame(struct rsu_softc *, uint8_t *, int); 216 static struct mbuf * 217 rsu_rxeof(struct usb_xfer *, struct rsu_data *); 218 static void rsu_txeof(struct usb_xfer *, struct rsu_data *); 219 static int rsu_raw_xmit(struct ieee80211_node *, struct mbuf *, 220 const struct ieee80211_bpf_params *); 221 static void rsu_init(struct rsu_softc *); 222 static int rsu_tx_start(struct rsu_softc *, struct ieee80211_node *, 223 struct mbuf *, struct rsu_data *); 224 static int rsu_transmit(struct ieee80211com *, struct mbuf *); 225 static void rsu_start(struct rsu_softc *); 226 static void _rsu_start(struct rsu_softc *); 227 static void rsu_parent(struct ieee80211com *); 228 static void rsu_stop(struct rsu_softc *); 229 static void rsu_ms_delay(struct rsu_softc *, int); 230 231 static device_method_t rsu_methods[] = { 232 DEVMETHOD(device_probe, rsu_match), 233 DEVMETHOD(device_attach, rsu_attach), 234 DEVMETHOD(device_detach, rsu_detach), 235 236 DEVMETHOD_END 237 }; 238 239 static driver_t rsu_driver = { 240 .name = "rsu", 241 .methods = rsu_methods, 242 .size = sizeof(struct rsu_softc) 243 }; 244 245 static devclass_t rsu_devclass; 246 247 DRIVER_MODULE(rsu, uhub, rsu_driver, rsu_devclass, NULL, 0); 248 MODULE_DEPEND(rsu, wlan, 1, 1, 1); 249 MODULE_DEPEND(rsu, usb, 1, 1, 1); 250 MODULE_DEPEND(rsu, firmware, 1, 1, 1); 251 MODULE_VERSION(rsu, 1); 252 253 static uint8_t rsu_wme_ac_xfer_map[4] = { 254 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 255 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 256 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 257 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 258 }; 259 260 /* XXX hard-coded */ 261 #define RSU_H2C_ENDPOINT 3 262 263 static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 264 [RSU_BULK_RX] = { 265 .type = UE_BULK, 266 .endpoint = UE_ADDR_ANY, 267 .direction = UE_DIR_IN, 268 .bufsize = RSU_RXBUFSZ, 269 .flags = { 270 .pipe_bof = 1, 271 .short_xfer_ok = 1 272 }, 273 .callback = rsu_bulk_rx_callback 274 }, 275 [RSU_BULK_TX_BE_BK] = { 276 .type = UE_BULK, 277 .endpoint = 0x06, 278 .direction = UE_DIR_OUT, 279 .bufsize = RSU_TXBUFSZ, 280 .flags = { 281 .ext_buffer = 1, 282 .pipe_bof = 1, 283 .force_short_xfer = 1 284 }, 285 .callback = rsu_bulk_tx_callback_be_bk, 286 .timeout = RSU_TX_TIMEOUT 287 }, 288 [RSU_BULK_TX_VI_VO] = { 289 .type = UE_BULK, 290 .endpoint = 0x04, 291 .direction = UE_DIR_OUT, 292 .bufsize = RSU_TXBUFSZ, 293 .flags = { 294 .ext_buffer = 1, 295 .pipe_bof = 1, 296 .force_short_xfer = 1 297 }, 298 .callback = rsu_bulk_tx_callback_vi_vo, 299 .timeout = RSU_TX_TIMEOUT 300 }, 301 [RSU_BULK_TX_H2C] = { 302 .type = UE_BULK, 303 .endpoint = 0x0d, 304 .direction = UE_DIR_OUT, 305 .bufsize = RSU_TXBUFSZ, 306 .flags = { 307 .ext_buffer = 1, 308 .pipe_bof = 1, 309 .short_xfer_ok = 1 310 }, 311 .callback = rsu_bulk_tx_callback_h2c, 312 .timeout = RSU_TX_TIMEOUT 313 }, 314 }; 315 316 static int 317 rsu_match(device_t self) 318 { 319 struct usb_attach_arg *uaa = device_get_ivars(self); 320 321 if (uaa->usb_mode != USB_MODE_HOST || 322 uaa->info.bIfaceIndex != 0 || 323 uaa->info.bConfigIndex != 0) 324 return (ENXIO); 325 326 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 327 } 328 329 static int 330 rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 331 { 332 333 return (ENOTSUP); 334 } 335 336 static void 337 rsu_update_chw(struct ieee80211com *ic) 338 { 339 340 } 341 342 /* 343 * notification from net80211 that it'd like to do A-MPDU on the given TID. 344 * 345 * Note: this actually hangs traffic at the present moment, so don't use it. 346 * The firmware debug does indiciate it's sending and establishing a TX AMPDU 347 * session, but then no traffic flows. 348 */ 349 static int 350 rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 351 { 352 #if 0 353 struct rsu_softc *sc = ni->ni_ic->ic_softc; 354 struct r92s_add_ba_req req; 355 356 /* Don't enable if it's requested or running */ 357 if (IEEE80211_AMPDU_REQUESTED(tap)) 358 return (0); 359 if (IEEE80211_AMPDU_RUNNING(tap)) 360 return (0); 361 362 /* We've decided to send addba; so send it */ 363 req.tid = htole32(tap->txa_tid); 364 365 /* Attempt net80211 state */ 366 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 367 return (0); 368 369 /* Send the firmware command */ 370 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: establishing AMPDU TX for TID %d\n", 371 __func__, 372 tap->txa_tid); 373 374 RSU_LOCK(sc); 375 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 1) { 376 RSU_UNLOCK(sc); 377 /* Mark failure */ 378 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 379 return (0); 380 } 381 RSU_UNLOCK(sc); 382 383 /* Mark success; we don't get any further notifications */ 384 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 385 #endif 386 /* Return 0, we're driving this ourselves */ 387 return (0); 388 } 389 390 static int 391 rsu_wme_update(struct ieee80211com *ic) 392 { 393 394 /* Firmware handles this; not our problem */ 395 return (0); 396 } 397 398 static int 399 rsu_attach(device_t self) 400 { 401 struct usb_attach_arg *uaa = device_get_ivars(self); 402 struct rsu_softc *sc = device_get_softc(self); 403 struct ieee80211com *ic = &sc->sc_ic; 404 int error; 405 uint8_t iface_index, bands; 406 struct usb_interface *iface; 407 const char *rft; 408 409 device_set_usb_desc(self); 410 sc->sc_udev = uaa->device; 411 sc->sc_dev = self; 412 if (rsu_enable_11n) 413 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 414 415 /* Get number of endpoints */ 416 iface = usbd_get_iface(sc->sc_udev, 0); 417 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 418 419 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 420 if (sc->sc_nendpoints != 4) { 421 device_printf(sc->sc_dev, 422 "the driver currently only supports 4-endpoint devices\n"); 423 return (ENXIO); 424 } 425 426 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 427 MTX_DEF); 428 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 429 rsu_calib_task, sc); 430 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 431 mbufq_init(&sc->sc_snd, ifqmaxlen); 432 433 /* Allocate Tx/Rx buffers. */ 434 error = rsu_alloc_rx_list(sc); 435 if (error != 0) { 436 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 437 goto fail_usb; 438 } 439 440 error = rsu_alloc_tx_list(sc); 441 if (error != 0) { 442 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 443 rsu_free_rx_list(sc); 444 goto fail_usb; 445 } 446 447 iface_index = 0; 448 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 449 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 450 if (error) { 451 device_printf(sc->sc_dev, 452 "could not allocate USB transfers, err=%s\n", 453 usbd_errstr(error)); 454 goto fail_usb; 455 } 456 RSU_LOCK(sc); 457 /* Read chip revision. */ 458 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 459 if (sc->cut != 3) 460 sc->cut = (sc->cut >> 1) + 1; 461 error = rsu_read_rom(sc); 462 RSU_UNLOCK(sc); 463 if (error != 0) { 464 device_printf(self, "could not read ROM\n"); 465 goto fail_rom; 466 } 467 468 /* Figure out TX/RX streams */ 469 switch (sc->rom[84]) { 470 case 0x0: 471 sc->sc_rftype = RTL8712_RFCONFIG_1T1R; 472 sc->sc_nrxstream = 1; 473 sc->sc_ntxstream = 1; 474 rft = "1T1R"; 475 break; 476 case 0x1: 477 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 478 sc->sc_nrxstream = 2; 479 sc->sc_ntxstream = 1; 480 rft = "1T2R"; 481 break; 482 case 0x2: 483 sc->sc_rftype = RTL8712_RFCONFIG_2T2R; 484 sc->sc_nrxstream = 2; 485 sc->sc_ntxstream = 2; 486 rft = "2T2R"; 487 break; 488 default: 489 device_printf(sc->sc_dev, 490 "%s: unknown board type (rfconfig=0x%02x)\n", 491 __func__, 492 sc->rom[84]); 493 goto fail_rom; 494 } 495 496 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 497 device_printf(self, "MAC/BB RTL8712 cut %d %s\n", sc->cut, rft); 498 499 ic->ic_softc = sc; 500 ic->ic_name = device_get_nameunit(self); 501 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 502 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 503 504 /* Set device capabilities. */ 505 ic->ic_caps = 506 IEEE80211_C_STA | /* station mode */ 507 #if 0 508 IEEE80211_C_BGSCAN | /* Background scan. */ 509 #endif 510 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 511 IEEE80211_C_WME | /* WME/QoS */ 512 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 513 IEEE80211_C_WPA; /* WPA/RSN. */ 514 515 /* Check if HT support is present. */ 516 if (sc->sc_ht) { 517 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 518 519 /* Enable basic HT */ 520 ic->ic_htcaps = IEEE80211_HTC_HT | 521 IEEE80211_HTC_AMPDU | 522 IEEE80211_HTC_AMSDU | 523 IEEE80211_HTCAP_MAXAMSDU_3839 | 524 IEEE80211_HTCAP_SMPS_OFF; 525 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 526 527 /* set number of spatial streams */ 528 ic->ic_txstream = sc->sc_ntxstream; 529 ic->ic_rxstream = sc->sc_nrxstream; 530 } 531 532 /* Set supported .11b and .11g rates. */ 533 bands = 0; 534 setbit(&bands, IEEE80211_MODE_11B); 535 setbit(&bands, IEEE80211_MODE_11G); 536 if (sc->sc_ht) 537 setbit(&bands, IEEE80211_MODE_11NG); 538 ieee80211_init_channels(ic, NULL, &bands); 539 540 ieee80211_ifattach(ic); 541 ic->ic_raw_xmit = rsu_raw_xmit; 542 ic->ic_scan_start = rsu_scan_start; 543 ic->ic_scan_end = rsu_scan_end; 544 ic->ic_set_channel = rsu_set_channel; 545 ic->ic_vap_create = rsu_vap_create; 546 ic->ic_vap_delete = rsu_vap_delete; 547 ic->ic_update_mcast = rsu_update_mcast; 548 ic->ic_parent = rsu_parent; 549 ic->ic_transmit = rsu_transmit; 550 ic->ic_send_mgmt = rsu_send_mgmt; 551 ic->ic_update_chw = rsu_update_chw; 552 ic->ic_ampdu_enable = rsu_ampdu_enable; 553 ic->ic_wme.wme_update = rsu_wme_update; 554 555 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 556 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 557 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 558 RSU_RX_RADIOTAP_PRESENT); 559 560 if (bootverbose) 561 ieee80211_announce(ic); 562 563 return (0); 564 565 fail_rom: 566 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 567 fail_usb: 568 mtx_destroy(&sc->sc_mtx); 569 return (ENXIO); 570 } 571 572 static int 573 rsu_detach(device_t self) 574 { 575 struct rsu_softc *sc = device_get_softc(self); 576 struct ieee80211com *ic = &sc->sc_ic; 577 578 RSU_LOCK(sc); 579 rsu_stop(sc); 580 RSU_UNLOCK(sc); 581 582 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 583 584 /* 585 * Free buffers /before/ we detach from net80211, else node 586 * references to destroyed vaps will lead to a panic. 587 */ 588 /* Free Tx/Rx buffers. */ 589 RSU_LOCK(sc); 590 rsu_free_tx_list(sc); 591 rsu_free_rx_list(sc); 592 RSU_UNLOCK(sc); 593 594 /* Frames are freed; detach from net80211 */ 595 ieee80211_ifdetach(ic); 596 597 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 598 taskqueue_drain(taskqueue_thread, &sc->tx_task); 599 600 mtx_destroy(&sc->sc_mtx); 601 602 return (0); 603 } 604 605 static usb_error_t 606 rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 607 void *data) 608 { 609 usb_error_t err; 610 int ntries = 10; 611 612 RSU_ASSERT_LOCKED(sc); 613 614 while (ntries--) { 615 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 616 req, data, 0, NULL, 250 /* ms */); 617 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 618 break; 619 DPRINTFN(1, "Control request failed, %s (retrying)\n", 620 usbd_errstr(err)); 621 rsu_ms_delay(sc, 10); 622 } 623 624 return (err); 625 } 626 627 static struct ieee80211vap * 628 rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 629 enum ieee80211_opmode opmode, int flags, 630 const uint8_t bssid[IEEE80211_ADDR_LEN], 631 const uint8_t mac[IEEE80211_ADDR_LEN]) 632 { 633 struct rsu_vap *uvp; 634 struct ieee80211vap *vap; 635 636 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 637 return (NULL); 638 639 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 640 vap = &uvp->vap; 641 642 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 643 flags, bssid) != 0) { 644 /* out of memory */ 645 free(uvp, M_80211_VAP); 646 return (NULL); 647 } 648 649 /* override state transition machine */ 650 uvp->newstate = vap->iv_newstate; 651 vap->iv_newstate = rsu_newstate; 652 653 /* Limits from the r92su driver */ 654 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 655 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 656 657 /* complete setup */ 658 ieee80211_vap_attach(vap, ieee80211_media_change, 659 ieee80211_media_status, mac); 660 ic->ic_opmode = opmode; 661 662 return (vap); 663 } 664 665 static void 666 rsu_vap_delete(struct ieee80211vap *vap) 667 { 668 struct rsu_vap *uvp = RSU_VAP(vap); 669 670 ieee80211_vap_detach(vap); 671 free(uvp, M_80211_VAP); 672 } 673 674 static void 675 rsu_scan_start(struct ieee80211com *ic) 676 { 677 struct rsu_softc *sc = ic->ic_softc; 678 int error; 679 680 /* Scanning is done by the firmware. */ 681 RSU_LOCK(sc); 682 /* XXX TODO: force awake if in in network-sleep? */ 683 error = rsu_site_survey(sc, TAILQ_FIRST(&ic->ic_vaps)); 684 RSU_UNLOCK(sc); 685 if (error != 0) 686 device_printf(sc->sc_dev, 687 "could not send site survey command\n"); 688 } 689 690 static void 691 rsu_scan_end(struct ieee80211com *ic) 692 { 693 /* Nothing to do here. */ 694 } 695 696 static void 697 rsu_set_channel(struct ieee80211com *ic __unused) 698 { 699 /* We are unable to switch channels, yet. */ 700 } 701 702 static void 703 rsu_update_mcast(struct ieee80211com *ic) 704 { 705 /* XXX do nothing? */ 706 } 707 708 static int 709 rsu_alloc_list(struct rsu_softc *sc, struct rsu_data data[], 710 int ndata, int maxsz) 711 { 712 int i, error; 713 714 for (i = 0; i < ndata; i++) { 715 struct rsu_data *dp = &data[i]; 716 dp->sc = sc; 717 dp->m = NULL; 718 dp->buf = malloc(maxsz, M_USBDEV, M_NOWAIT); 719 if (dp->buf == NULL) { 720 device_printf(sc->sc_dev, 721 "could not allocate buffer\n"); 722 error = ENOMEM; 723 goto fail; 724 } 725 dp->ni = NULL; 726 } 727 728 return (0); 729 fail: 730 rsu_free_list(sc, data, ndata); 731 return (error); 732 } 733 734 static int 735 rsu_alloc_rx_list(struct rsu_softc *sc) 736 { 737 int error, i; 738 739 error = rsu_alloc_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT, 740 RSU_RXBUFSZ); 741 if (error != 0) 742 return (error); 743 744 STAILQ_INIT(&sc->sc_rx_active); 745 STAILQ_INIT(&sc->sc_rx_inactive); 746 747 for (i = 0; i < RSU_RX_LIST_COUNT; i++) 748 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i], next); 749 750 return (0); 751 } 752 753 static int 754 rsu_alloc_tx_list(struct rsu_softc *sc) 755 { 756 int error, i; 757 758 error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT, 759 RSU_TXBUFSZ); 760 if (error != 0) 761 return (error); 762 763 STAILQ_INIT(&sc->sc_tx_inactive); 764 765 for (i = 0; i != RSU_N_TRANSFER; i++) { 766 STAILQ_INIT(&sc->sc_tx_active[i]); 767 STAILQ_INIT(&sc->sc_tx_pending[i]); 768 } 769 770 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 771 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i], next); 772 } 773 774 return (0); 775 } 776 777 static void 778 rsu_free_tx_list(struct rsu_softc *sc) 779 { 780 int i; 781 782 /* prevent further allocations from TX list(s) */ 783 STAILQ_INIT(&sc->sc_tx_inactive); 784 785 for (i = 0; i != RSU_N_TRANSFER; i++) { 786 STAILQ_INIT(&sc->sc_tx_active[i]); 787 STAILQ_INIT(&sc->sc_tx_pending[i]); 788 } 789 790 rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT); 791 } 792 793 static void 794 rsu_free_rx_list(struct rsu_softc *sc) 795 { 796 /* prevent further allocations from RX list(s) */ 797 STAILQ_INIT(&sc->sc_rx_inactive); 798 STAILQ_INIT(&sc->sc_rx_active); 799 800 rsu_free_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT); 801 } 802 803 static void 804 rsu_free_list(struct rsu_softc *sc, struct rsu_data data[], int ndata) 805 { 806 int i; 807 808 for (i = 0; i < ndata; i++) { 809 struct rsu_data *dp = &data[i]; 810 811 if (dp->buf != NULL) { 812 free(dp->buf, M_USBDEV); 813 dp->buf = NULL; 814 } 815 if (dp->ni != NULL) { 816 ieee80211_free_node(dp->ni); 817 dp->ni = NULL; 818 } 819 } 820 } 821 822 static struct rsu_data * 823 _rsu_getbuf(struct rsu_softc *sc) 824 { 825 struct rsu_data *bf; 826 827 bf = STAILQ_FIRST(&sc->sc_tx_inactive); 828 if (bf != NULL) 829 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next); 830 else 831 bf = NULL; 832 return (bf); 833 } 834 835 static struct rsu_data * 836 rsu_getbuf(struct rsu_softc *sc) 837 { 838 struct rsu_data *bf; 839 840 RSU_ASSERT_LOCKED(sc); 841 842 bf = _rsu_getbuf(sc); 843 if (bf == NULL) { 844 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: no buffers\n", __func__); 845 } 846 return (bf); 847 } 848 849 static void 850 rsu_freebuf(struct rsu_softc *sc, struct rsu_data *bf) 851 { 852 853 RSU_ASSERT_LOCKED(sc); 854 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, bf, next); 855 } 856 857 static int 858 rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 859 int len) 860 { 861 usb_device_request_t req; 862 863 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 864 req.bRequest = R92S_REQ_REGS; 865 USETW(req.wValue, addr); 866 USETW(req.wIndex, 0); 867 USETW(req.wLength, len); 868 869 return (rsu_do_request(sc, &req, buf)); 870 } 871 872 static void 873 rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 874 { 875 rsu_write_region_1(sc, addr, &val, 1); 876 } 877 878 static void 879 rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 880 { 881 val = htole16(val); 882 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 883 } 884 885 static void 886 rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 887 { 888 val = htole32(val); 889 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 890 } 891 892 static int 893 rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 894 int len) 895 { 896 usb_device_request_t req; 897 898 req.bmRequestType = UT_READ_VENDOR_DEVICE; 899 req.bRequest = R92S_REQ_REGS; 900 USETW(req.wValue, addr); 901 USETW(req.wIndex, 0); 902 USETW(req.wLength, len); 903 904 return (rsu_do_request(sc, &req, buf)); 905 } 906 907 static uint8_t 908 rsu_read_1(struct rsu_softc *sc, uint16_t addr) 909 { 910 uint8_t val; 911 912 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 913 return (0xff); 914 return (val); 915 } 916 917 static uint16_t 918 rsu_read_2(struct rsu_softc *sc, uint16_t addr) 919 { 920 uint16_t val; 921 922 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 923 return (0xffff); 924 return (le16toh(val)); 925 } 926 927 static uint32_t 928 rsu_read_4(struct rsu_softc *sc, uint16_t addr) 929 { 930 uint32_t val; 931 932 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 933 return (0xffffffff); 934 return (le32toh(val)); 935 } 936 937 static int 938 rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 939 { 940 int ntries; 941 942 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 943 rsu_ms_delay(sc, 1); 944 for (ntries = 0; ntries < 50; ntries++) { 945 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 946 return (0); 947 rsu_ms_delay(sc, 1); 948 } 949 return (ETIMEDOUT); 950 } 951 952 static uint8_t 953 rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 954 { 955 uint32_t reg; 956 int ntries; 957 958 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 959 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 960 reg &= ~R92S_EFUSE_CTRL_VALID; 961 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 962 /* Wait for read operation to complete. */ 963 for (ntries = 0; ntries < 100; ntries++) { 964 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 965 if (reg & R92S_EFUSE_CTRL_VALID) 966 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 967 rsu_ms_delay(sc, 1); 968 } 969 device_printf(sc->sc_dev, 970 "could not read efuse byte at address 0x%x\n", addr); 971 return (0xff); 972 } 973 974 static int 975 rsu_read_rom(struct rsu_softc *sc) 976 { 977 uint8_t *rom = sc->rom; 978 uint16_t addr = 0; 979 uint32_t reg; 980 uint8_t off, msk; 981 int i; 982 983 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 984 reg = rsu_read_1(sc, R92S_EE_9346CR); 985 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 986 return (EIO); 987 988 /* Turn on 2.5V to prevent eFuse leakage. */ 989 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 990 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 991 rsu_ms_delay(sc, 1); 992 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 993 994 /* Read full ROM image. */ 995 memset(&sc->rom, 0xff, sizeof(sc->rom)); 996 while (addr < 512) { 997 reg = rsu_efuse_read_1(sc, addr); 998 if (reg == 0xff) 999 break; 1000 addr++; 1001 off = reg >> 4; 1002 msk = reg & 0xf; 1003 for (i = 0; i < 4; i++) { 1004 if (msk & (1 << i)) 1005 continue; 1006 rom[off * 8 + i * 2 + 0] = 1007 rsu_efuse_read_1(sc, addr); 1008 addr++; 1009 rom[off * 8 + i * 2 + 1] = 1010 rsu_efuse_read_1(sc, addr); 1011 addr++; 1012 } 1013 } 1014 #ifdef USB_DEBUG 1015 if (rsu_debug >= 5) { 1016 /* Dump ROM content. */ 1017 printf("\n"); 1018 for (i = 0; i < sizeof(sc->rom); i++) 1019 printf("%02x:", rom[i]); 1020 printf("\n"); 1021 } 1022 #endif 1023 return (0); 1024 } 1025 1026 static int 1027 rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 1028 { 1029 const uint8_t which = RSU_H2C_ENDPOINT; 1030 struct rsu_data *data; 1031 struct r92s_tx_desc *txd; 1032 struct r92s_fw_cmd_hdr *cmd; 1033 int cmdsz; 1034 int xferlen; 1035 1036 RSU_ASSERT_LOCKED(sc); 1037 1038 data = rsu_getbuf(sc); 1039 if (data == NULL) 1040 return (ENOMEM); 1041 1042 /* Blank the entire payload, just to be safe */ 1043 memset(data->buf, '\0', RSU_TXBUFSZ); 1044 1045 /* Round-up command length to a multiple of 8 bytes. */ 1046 /* XXX TODO: is this required? */ 1047 cmdsz = (len + 7) & ~7; 1048 1049 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 1050 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 1051 memset(data->buf, 0, xferlen); 1052 1053 /* Setup Tx descriptor. */ 1054 txd = (struct r92s_tx_desc *)data->buf; 1055 txd->txdw0 = htole32( 1056 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1057 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 1058 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1059 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 1060 1061 /* Setup command header. */ 1062 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 1063 cmd->len = htole16(cmdsz); 1064 cmd->code = code; 1065 cmd->seq = sc->cmd_seq; 1066 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 1067 1068 /* Copy command payload. */ 1069 memcpy(&cmd[1], buf, len); 1070 1071 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FWCMD, 1072 "%s: Tx cmd code=0x%x len=0x%x\n", 1073 __func__, code, cmdsz); 1074 data->buflen = xferlen; 1075 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 1076 usbd_transfer_start(sc->sc_xfer[which]); 1077 1078 return (0); 1079 } 1080 1081 /* ARGSUSED */ 1082 static void 1083 rsu_calib_task(void *arg, int pending __unused) 1084 { 1085 struct rsu_softc *sc = arg; 1086 #ifdef notyet 1087 uint32_t reg; 1088 #endif 1089 1090 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: running calibration task\n", 1091 __func__); 1092 1093 RSU_LOCK(sc); 1094 #ifdef notyet 1095 /* Read WPS PBC status. */ 1096 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 1097 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 1098 rsu_write_1(sc, R92S_GPIO_IO_SEL, 1099 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 1100 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 1101 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 1102 DPRINTF(("WPS PBC is pushed\n")); 1103 #endif 1104 /* Read current signal level. */ 1105 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 1106 sc->sc_currssi = rsu_read_4(sc, R92S_IOCMD_DATA); 1107 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: RSSI=%d (%d)\n", 1108 __func__, sc->sc_currssi, 1109 rsu_hwrssi_to_rssi(sc, sc->sc_currssi)); 1110 } 1111 if (sc->sc_calibrating) 1112 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1113 RSU_UNLOCK(sc); 1114 } 1115 1116 static void 1117 rsu_tx_task(void *arg, int pending __unused) 1118 { 1119 struct rsu_softc *sc = arg; 1120 1121 RSU_LOCK(sc); 1122 _rsu_start(sc); 1123 RSU_UNLOCK(sc); 1124 } 1125 1126 #define RSU_PWR_UNKNOWN 0x0 1127 #define RSU_PWR_ACTIVE 0x1 1128 #define RSU_PWR_OFF 0x2 1129 #define RSU_PWR_SLEEP 0x3 1130 1131 /* 1132 * Set the current power state. 1133 * 1134 * The rtlwifi code doesn't do this so aggressively; it 1135 * waits for an idle period after association with 1136 * no traffic before doing this. 1137 * 1138 * For now - it's on in all states except RUN, and 1139 * in RUN it'll transition to allow sleep. 1140 */ 1141 1142 struct r92s_pwr_cmd { 1143 uint8_t mode; 1144 uint8_t smart_ps; 1145 uint8_t bcn_pass_time; 1146 }; 1147 1148 static int 1149 rsu_set_fw_power_state(struct rsu_softc *sc, int state) 1150 { 1151 struct r92s_set_pwr_mode cmd; 1152 //struct r92s_pwr_cmd cmd; 1153 int error; 1154 1155 RSU_ASSERT_LOCKED(sc); 1156 1157 /* only change state if required */ 1158 if (sc->sc_curpwrstate == state) 1159 return (0); 1160 1161 memset(&cmd, 0, sizeof(cmd)); 1162 1163 switch (state) { 1164 case RSU_PWR_ACTIVE: 1165 /* Force the hardware awake */ 1166 rsu_write_1(sc, R92S_USB_HRPWM, 1167 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 1168 cmd.mode = R92S_PS_MODE_ACTIVE; 1169 break; 1170 case RSU_PWR_SLEEP: 1171 cmd.mode = R92S_PS_MODE_DTIM; /* XXX configurable? */ 1172 cmd.smart_ps = 1; /* XXX 2 if doing p2p */ 1173 cmd.bcn_pass_time = 5; /* in 100mS usb.c, linux/rtlwifi */ 1174 break; 1175 case RSU_PWR_OFF: 1176 cmd.mode = R92S_PS_MODE_RADIOOFF; 1177 break; 1178 default: 1179 device_printf(sc->sc_dev, "%s: unknown ps mode (%d)\n", 1180 __func__, 1181 state); 1182 return (ENXIO); 1183 } 1184 1185 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1186 "%s: setting ps mode to %d (mode %d)\n", 1187 __func__, state, cmd.mode); 1188 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 1189 if (error == 0) 1190 sc->sc_curpwrstate = state; 1191 1192 return (error); 1193 } 1194 1195 static int 1196 rsu_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1197 { 1198 struct rsu_vap *uvp = RSU_VAP(vap); 1199 struct ieee80211com *ic = vap->iv_ic; 1200 struct rsu_softc *sc = ic->ic_softc; 1201 struct ieee80211_node *ni; 1202 struct ieee80211_rateset *rs; 1203 enum ieee80211_state ostate; 1204 int error, startcal = 0; 1205 1206 ostate = vap->iv_state; 1207 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: %s -> %s\n", 1208 __func__, 1209 ieee80211_state_name[ostate], 1210 ieee80211_state_name[nstate]); 1211 1212 IEEE80211_UNLOCK(ic); 1213 if (ostate == IEEE80211_S_RUN) { 1214 RSU_LOCK(sc); 1215 /* Stop calibration. */ 1216 sc->sc_calibrating = 0; 1217 RSU_UNLOCK(sc); 1218 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 1219 taskqueue_drain(taskqueue_thread, &sc->tx_task); 1220 /* Disassociate from our current BSS. */ 1221 RSU_LOCK(sc); 1222 rsu_disconnect(sc); 1223 } else 1224 RSU_LOCK(sc); 1225 switch (nstate) { 1226 case IEEE80211_S_INIT: 1227 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1228 break; 1229 case IEEE80211_S_AUTH: 1230 ni = ieee80211_ref_node(vap->iv_bss); 1231 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1232 error = rsu_join_bss(sc, ni); 1233 ieee80211_free_node(ni); 1234 if (error != 0) { 1235 device_printf(sc->sc_dev, 1236 "could not send join command\n"); 1237 } 1238 break; 1239 case IEEE80211_S_RUN: 1240 ni = ieee80211_ref_node(vap->iv_bss); 1241 rs = &ni->ni_rates; 1242 /* Indicate highest supported rate. */ 1243 ni->ni_txrate = rs->rs_rates[rs->rs_nrates - 1]; 1244 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1245 ieee80211_free_node(ni); 1246 startcal = 1; 1247 break; 1248 default: 1249 break; 1250 } 1251 sc->sc_calibrating = 1; 1252 /* Start periodic calibration. */ 1253 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1254 RSU_UNLOCK(sc); 1255 IEEE80211_LOCK(ic); 1256 return (uvp->newstate(vap, nstate, arg)); 1257 } 1258 1259 #ifdef notyet 1260 static void 1261 rsu_set_key(struct rsu_softc *sc, const struct ieee80211_key *k) 1262 { 1263 struct r92s_fw_cmd_set_key key; 1264 1265 memset(&key, 0, sizeof(key)); 1266 /* Map net80211 cipher to HW crypto algorithm. */ 1267 switch (k->wk_cipher->ic_cipher) { 1268 case IEEE80211_CIPHER_WEP: 1269 if (k->wk_keylen < 8) 1270 key.algo = R92S_KEY_ALGO_WEP40; 1271 else 1272 key.algo = R92S_KEY_ALGO_WEP104; 1273 break; 1274 case IEEE80211_CIPHER_TKIP: 1275 key.algo = R92S_KEY_ALGO_TKIP; 1276 break; 1277 case IEEE80211_CIPHER_AES_CCM: 1278 key.algo = R92S_KEY_ALGO_AES; 1279 break; 1280 default: 1281 return; 1282 } 1283 key.id = k->wk_keyix; 1284 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1285 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1286 (void)rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1287 } 1288 1289 static void 1290 rsu_delete_key(struct rsu_softc *sc, const struct ieee80211_key *k) 1291 { 1292 struct r92s_fw_cmd_set_key key; 1293 1294 memset(&key, 0, sizeof(key)); 1295 key.id = k->wk_keyix; 1296 (void)rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1297 } 1298 #endif 1299 1300 static int 1301 rsu_site_survey(struct rsu_softc *sc, struct ieee80211vap *vap) 1302 { 1303 struct r92s_fw_cmd_sitesurvey cmd; 1304 struct ieee80211com *ic = &sc->sc_ic; 1305 int r; 1306 1307 RSU_ASSERT_LOCKED(sc); 1308 1309 memset(&cmd, 0, sizeof(cmd)); 1310 if ((ic->ic_flags & IEEE80211_F_ASCAN) || sc->sc_scan_pass == 1) 1311 cmd.active = htole32(1); 1312 cmd.limit = htole32(48); 1313 if (sc->sc_scan_pass == 1 && vap->iv_des_nssid > 0) { 1314 /* Do a directed scan for second pass. */ 1315 cmd.ssidlen = htole32(vap->iv_des_ssid[0].len); 1316 memcpy(cmd.ssid, vap->iv_des_ssid[0].ssid, 1317 vap->iv_des_ssid[0].len); 1318 1319 } 1320 DPRINTF("sending site survey command, pass=%d\n", sc->sc_scan_pass); 1321 r = rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd)); 1322 if (r == 0) { 1323 sc->sc_scanning = 1; 1324 } 1325 return (r); 1326 } 1327 1328 static int 1329 rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1330 { 1331 struct ieee80211com *ic = &sc->sc_ic; 1332 struct ieee80211vap *vap = ni->ni_vap; 1333 struct ndis_wlan_bssid_ex *bss; 1334 struct ndis_802_11_fixed_ies *fixed; 1335 struct r92s_fw_cmd_auth auth; 1336 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1337 uint8_t *frm; 1338 uint8_t opmode; 1339 int error; 1340 int cnt; 1341 char *msg = "rsujoin"; 1342 1343 RSU_ASSERT_LOCKED(sc); 1344 1345 /* 1346 * Until net80211 scanning doesn't automatically finish 1347 * before we tell it to, let's just wait until any pending 1348 * scan is done. 1349 * 1350 * XXX TODO: yes, this releases and re-acquires the lock. 1351 * We should re-verify the state whenever we re-attempt this! 1352 */ 1353 cnt = 0; 1354 while (sc->sc_scanning && cnt < 10) { 1355 device_printf(sc->sc_dev, 1356 "%s: still scanning! (attempt %d)\n", 1357 __func__, cnt); 1358 msleep(msg, &sc->sc_mtx, 0, msg, hz / 2); 1359 cnt++; 1360 } 1361 1362 /* Let the FW decide the opmode based on the capinfo field. */ 1363 opmode = NDIS802_11AUTOUNKNOWN; 1364 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1365 "%s: setting operating mode to %d\n", 1366 __func__, opmode); 1367 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1368 if (error != 0) 1369 return (error); 1370 1371 memset(&auth, 0, sizeof(auth)); 1372 if (vap->iv_flags & IEEE80211_F_WPA) { 1373 auth.mode = R92S_AUTHMODE_WPA; 1374 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1375 } else 1376 auth.mode = R92S_AUTHMODE_OPEN; 1377 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1378 "%s: setting auth mode to %d\n", 1379 __func__, auth.mode); 1380 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1381 if (error != 0) 1382 return (error); 1383 1384 memset(buf, 0, sizeof(buf)); 1385 bss = (struct ndis_wlan_bssid_ex *)buf; 1386 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1387 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1388 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1389 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1390 bss->privacy = htole32(1); 1391 bss->rssi = htole32(ni->ni_avgrssi); 1392 if (ic->ic_curmode == IEEE80211_MODE_11B) 1393 bss->networktype = htole32(NDIS802_11DS); 1394 else 1395 bss->networktype = htole32(NDIS802_11OFDM24); 1396 bss->config.len = htole32(sizeof(bss->config)); 1397 bss->config.bintval = htole32(ni->ni_intval); 1398 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1399 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1400 /* XXX verify how this is supposed to look! */ 1401 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1402 ni->ni_rates.rs_nrates); 1403 /* Write the fixed fields of the beacon frame. */ 1404 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1405 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1406 fixed->bintval = htole16(ni->ni_intval); 1407 fixed->capabilities = htole16(ni->ni_capinfo); 1408 /* Write IEs to be included in the association request. */ 1409 frm = (uint8_t *)&fixed[1]; 1410 frm = ieee80211_add_rsn(frm, vap); 1411 frm = ieee80211_add_wpa(frm, vap); 1412 frm = ieee80211_add_qos(frm, ni); 1413 if ((ic->ic_flags & IEEE80211_F_WME) && 1414 (ni->ni_ies.wme_ie != NULL)) 1415 frm = ieee80211_add_wme_info(frm, &ic->ic_wme); 1416 if (ni->ni_flags & IEEE80211_NODE_HT) { 1417 frm = ieee80211_add_htcap(frm, ni); 1418 frm = ieee80211_add_htinfo(frm, ni); 1419 } 1420 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1421 bss->len = htole32(((frm - buf) + 3) & ~3); 1422 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 1423 "%s: sending join bss command to %s chan %d\n", 1424 __func__, 1425 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 1426 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 1427 } 1428 1429 static int 1430 rsu_disconnect(struct rsu_softc *sc) 1431 { 1432 uint32_t zero = 0; /* :-) */ 1433 1434 /* Disassociate from our current BSS. */ 1435 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 1436 "%s: sending disconnect command\n", __func__); 1437 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 1438 } 1439 1440 /* 1441 * Map the hardware provided RSSI value to a signal level. 1442 * For the most part it's just something we divide by and cap 1443 * so it doesn't overflow the representation by net80211. 1444 */ 1445 static int 1446 rsu_hwrssi_to_rssi(struct rsu_softc *sc, int hw_rssi) 1447 { 1448 int v; 1449 1450 if (hw_rssi == 0) 1451 return (0); 1452 v = hw_rssi >> 4; 1453 if (v > 80) 1454 v = 80; 1455 return (v); 1456 } 1457 1458 static void 1459 rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 1460 { 1461 struct ieee80211com *ic = &sc->sc_ic; 1462 struct ieee80211_frame *wh; 1463 struct ndis_wlan_bssid_ex *bss; 1464 struct ieee80211_rx_stats rxs; 1465 struct mbuf *m; 1466 int pktlen; 1467 1468 if (__predict_false(len < sizeof(*bss))) 1469 return; 1470 bss = (struct ndis_wlan_bssid_ex *)buf; 1471 if (__predict_false(len < sizeof(*bss) + le32toh(bss->ieslen))) 1472 return; 1473 1474 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 1475 "%s: found BSS %s: len=%d chan=%d inframode=%d " 1476 "networktype=%d privacy=%d, RSSI=%d\n", 1477 __func__, 1478 ether_sprintf(bss->macaddr), le32toh(bss->len), 1479 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 1480 le32toh(bss->networktype), le32toh(bss->privacy), 1481 le32toh(bss->rssi)); 1482 1483 /* Build a fake beacon frame to let net80211 do all the parsing. */ 1484 /* XXX TODO: just call the new scan API methods! */ 1485 pktlen = sizeof(*wh) + le32toh(bss->ieslen); 1486 if (__predict_false(pktlen > MCLBYTES)) 1487 return; 1488 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 1489 if (__predict_false(m == NULL)) 1490 return; 1491 wh = mtod(m, struct ieee80211_frame *); 1492 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 1493 IEEE80211_FC0_SUBTYPE_BEACON; 1494 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1495 USETW(wh->i_dur, 0); 1496 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 1497 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 1498 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 1499 *(uint16_t *)wh->i_seq = 0; 1500 memcpy(&wh[1], (uint8_t *)&bss[1], le32toh(bss->ieslen)); 1501 1502 /* Finalize mbuf. */ 1503 m->m_pkthdr.len = m->m_len = pktlen; 1504 1505 /* Set channel flags for input path */ 1506 bzero(&rxs, sizeof(rxs)); 1507 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 1508 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 1509 rxs.c_ieee = le32toh(bss->config.dsconfig); 1510 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 1511 /* This is a number from 0..100; so let's just divide it down a bit */ 1512 rxs.rssi = le32toh(bss->rssi) / 2; 1513 rxs.nf = -96; 1514 1515 /* XXX avoid a LOR */ 1516 RSU_UNLOCK(sc); 1517 ieee80211_input_mimo_all(ic, m, &rxs); 1518 RSU_LOCK(sc); 1519 } 1520 1521 static void 1522 rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 1523 { 1524 struct ieee80211com *ic = &sc->sc_ic; 1525 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1526 struct ieee80211_node *ni = vap->iv_bss; 1527 struct r92s_event_join_bss *rsp; 1528 uint32_t tmp; 1529 int res; 1530 1531 if (__predict_false(len < sizeof(*rsp))) 1532 return; 1533 rsp = (struct r92s_event_join_bss *)buf; 1534 res = (int)le32toh(rsp->join_res); 1535 1536 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 1537 "%s: Rx join BSS event len=%d res=%d\n", 1538 __func__, len, res); 1539 1540 /* 1541 * XXX Don't do this; there's likely a better way to tell 1542 * the caller we failed. 1543 */ 1544 if (res <= 0) { 1545 RSU_UNLOCK(sc); 1546 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1547 RSU_LOCK(sc); 1548 return; 1549 } 1550 1551 tmp = le32toh(rsp->associd); 1552 if (tmp >= vap->iv_max_aid) { 1553 DPRINTF("Assoc ID overflow\n"); 1554 tmp = 1; 1555 } 1556 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 1557 "%s: associated with %s associd=%d\n", 1558 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 1559 /* XXX is this required? What's the top two bits for again? */ 1560 ni->ni_associd = tmp | 0xc000; 1561 RSU_UNLOCK(sc); 1562 ieee80211_new_state(vap, IEEE80211_S_RUN, 1563 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1564 RSU_LOCK(sc); 1565 } 1566 1567 static void 1568 rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 1569 { 1570 struct ieee80211com *ic = &sc->sc_ic; 1571 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1572 struct r92s_add_ba_event *ba = (void *) buf; 1573 struct ieee80211_node *ni; 1574 1575 if (len < sizeof(*ba)) { 1576 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 1577 return; 1578 } 1579 1580 if (vap == NULL) 1581 return; 1582 1583 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: mac=%s, tid=%d, ssn=%d\n", 1584 __func__, 1585 ether_sprintf(ba->mac_addr), 1586 (int) ba->tid, 1587 (int) le16toh(ba->ssn)); 1588 1589 /* XXX do node lookup; this is STA specific */ 1590 1591 ni = ieee80211_ref_node(vap->iv_bss); 1592 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 1593 ieee80211_free_node(ni); 1594 } 1595 1596 static void 1597 rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 1598 { 1599 struct ieee80211com *ic = &sc->sc_ic; 1600 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1601 1602 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 1603 "%s: Rx event code=%d len=%d\n", __func__, code, len); 1604 switch (code) { 1605 case R92S_EVT_SURVEY: 1606 rsu_event_survey(sc, buf, len); 1607 break; 1608 case R92S_EVT_SURVEY_DONE: 1609 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 1610 "%s: site survey pass %d done, found %d BSS\n", 1611 __func__, sc->sc_scan_pass, le32toh(*(uint32_t *)buf)); 1612 sc->sc_scanning = 0; 1613 if (vap->iv_state != IEEE80211_S_SCAN) 1614 break; /* Ignore if not scanning. */ 1615 1616 /* 1617 * XXX TODO: This needs to be done without a transition to 1618 * the SCAN state again. Grr. 1619 */ 1620 if (sc->sc_scan_pass == 0 && vap->iv_des_nssid != 0) { 1621 /* Schedule a directed scan for hidden APs. */ 1622 /* XXX bad! */ 1623 sc->sc_scan_pass = 1; 1624 RSU_UNLOCK(sc); 1625 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1626 RSU_LOCK(sc); 1627 break; 1628 } 1629 sc->sc_scan_pass = 0; 1630 break; 1631 case R92S_EVT_JOIN_BSS: 1632 if (vap->iv_state == IEEE80211_S_AUTH) 1633 rsu_event_join_bss(sc, buf, len); 1634 break; 1635 case R92S_EVT_DEL_STA: 1636 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 1637 "%s: disassociated from %s\n", __func__, 1638 ether_sprintf(buf)); 1639 if (vap->iv_state == IEEE80211_S_RUN && 1640 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 1641 RSU_UNLOCK(sc); 1642 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1643 RSU_LOCK(sc); 1644 } 1645 break; 1646 case R92S_EVT_WPS_PBC: 1647 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 1648 "%s: WPS PBC pushed.\n", __func__); 1649 break; 1650 case R92S_EVT_FWDBG: 1651 buf[60] = '\0'; 1652 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 1653 break; 1654 case R92S_EVT_ADDBA_REQ_REPORT: 1655 rsu_event_addba_req_report(sc, buf, len); 1656 break; 1657 default: 1658 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 1659 break; 1660 } 1661 } 1662 1663 static void 1664 rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 1665 { 1666 struct r92s_fw_cmd_hdr *cmd; 1667 int cmdsz; 1668 1669 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 1670 1671 /* Skip Rx status. */ 1672 buf += sizeof(struct r92s_rx_stat); 1673 len -= sizeof(struct r92s_rx_stat); 1674 1675 /* Process all events. */ 1676 for (;;) { 1677 /* Check that command header fits. */ 1678 if (__predict_false(len < sizeof(*cmd))) 1679 break; 1680 cmd = (struct r92s_fw_cmd_hdr *)buf; 1681 /* Check that command payload fits. */ 1682 cmdsz = le16toh(cmd->len); 1683 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 1684 break; 1685 1686 /* Process firmware event. */ 1687 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 1688 1689 if (!(cmd->seq & R92S_FW_CMD_MORE)) 1690 break; 1691 buf += sizeof(*cmd) + cmdsz; 1692 len -= sizeof(*cmd) + cmdsz; 1693 } 1694 } 1695 1696 #if 0 1697 static int8_t 1698 rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 1699 { 1700 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 1701 struct r92s_rx_phystat *phy; 1702 struct r92s_rx_cck *cck; 1703 uint8_t rpt; 1704 int8_t rssi; 1705 1706 if (rate <= 3) { 1707 cck = (struct r92s_rx_cck *)physt; 1708 rpt = (cck->agc_rpt >> 6) & 0x3; 1709 rssi = cck->agc_rpt & 0x3e; 1710 rssi = cckoff[rpt] - rssi; 1711 } else { /* OFDM/HT. */ 1712 phy = (struct r92s_rx_phystat *)physt; 1713 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 1714 } 1715 return (rssi); 1716 } 1717 #endif 1718 1719 static struct mbuf * 1720 rsu_rx_frame(struct rsu_softc *sc, uint8_t *buf, int pktlen) 1721 { 1722 struct ieee80211com *ic = &sc->sc_ic; 1723 struct ieee80211_frame *wh; 1724 struct r92s_rx_stat *stat; 1725 uint32_t rxdw0, rxdw3; 1726 struct mbuf *m; 1727 uint8_t rate; 1728 int infosz; 1729 1730 stat = (struct r92s_rx_stat *)buf; 1731 rxdw0 = le32toh(stat->rxdw0); 1732 rxdw3 = le32toh(stat->rxdw3); 1733 1734 if (__predict_false(rxdw0 & R92S_RXDW0_CRCERR)) { 1735 counter_u64_add(ic->ic_ierrors, 1); 1736 return NULL; 1737 } 1738 if (__predict_false(pktlen < sizeof(*wh) || pktlen > MCLBYTES)) { 1739 counter_u64_add(ic->ic_ierrors, 1); 1740 return NULL; 1741 } 1742 1743 rate = MS(rxdw3, R92S_RXDW3_RATE); 1744 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 1745 1746 #if 0 1747 /* Get RSSI from PHY status descriptor if present. */ 1748 if (infosz != 0) 1749 *rssi = rsu_get_rssi(sc, rate, &stat[1]); 1750 else 1751 *rssi = 0; 1752 #endif 1753 1754 RSU_DPRINTF(sc, RSU_DEBUG_RX, 1755 "%s: Rx frame len=%d rate=%d infosz=%d\n", 1756 __func__, pktlen, rate, infosz); 1757 1758 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 1759 if (__predict_false(m == NULL)) { 1760 counter_u64_add(ic->ic_ierrors, 1); 1761 return NULL; 1762 } 1763 /* Hardware does Rx TCP checksum offload. */ 1764 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 1765 if (__predict_true(rxdw3 & R92S_RXDW3_TCPCHKRPT)) 1766 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 1767 } 1768 wh = (struct ieee80211_frame *)((uint8_t *)&stat[1] + infosz); 1769 memcpy(mtod(m, uint8_t *), wh, pktlen); 1770 m->m_pkthdr.len = m->m_len = pktlen; 1771 1772 if (ieee80211_radiotap_active(ic)) { 1773 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 1774 1775 /* Map HW rate index to 802.11 rate. */ 1776 tap->wr_flags = 2; 1777 if (!(rxdw3 & R92S_RXDW3_HTC)) { 1778 switch (rate) { 1779 /* CCK. */ 1780 case 0: tap->wr_rate = 2; break; 1781 case 1: tap->wr_rate = 4; break; 1782 case 2: tap->wr_rate = 11; break; 1783 case 3: tap->wr_rate = 22; break; 1784 /* OFDM. */ 1785 case 4: tap->wr_rate = 12; break; 1786 case 5: tap->wr_rate = 18; break; 1787 case 6: tap->wr_rate = 24; break; 1788 case 7: tap->wr_rate = 36; break; 1789 case 8: tap->wr_rate = 48; break; 1790 case 9: tap->wr_rate = 72; break; 1791 case 10: tap->wr_rate = 96; break; 1792 case 11: tap->wr_rate = 108; break; 1793 } 1794 } else if (rate >= 12) { /* MCS0~15. */ 1795 /* Bit 7 set means HT MCS instead of rate. */ 1796 tap->wr_rate = 0x80 | (rate - 12); 1797 } 1798 #if 0 1799 tap->wr_dbm_antsignal = *rssi; 1800 #endif 1801 /* XXX not nice */ 1802 tap->wr_dbm_antsignal = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 1803 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 1804 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 1805 } 1806 1807 return (m); 1808 } 1809 1810 static struct mbuf * 1811 rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 1812 { 1813 struct r92s_rx_stat *stat; 1814 uint32_t rxdw0; 1815 int totlen, pktlen, infosz, npkts; 1816 struct mbuf *m, *m0 = NULL, *prevm = NULL; 1817 1818 /* Get the number of encapsulated frames. */ 1819 stat = (struct r92s_rx_stat *)buf; 1820 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 1821 RSU_DPRINTF(sc, RSU_DEBUG_RX, 1822 "%s: Rx %d frames in one chunk\n", __func__, npkts); 1823 1824 /* Process all of them. */ 1825 while (npkts-- > 0) { 1826 if (__predict_false(len < sizeof(*stat))) 1827 break; 1828 stat = (struct r92s_rx_stat *)buf; 1829 rxdw0 = le32toh(stat->rxdw0); 1830 1831 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 1832 if (__predict_false(pktlen == 0)) 1833 break; 1834 1835 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 1836 1837 /* Make sure everything fits in xfer. */ 1838 totlen = sizeof(*stat) + infosz + pktlen; 1839 if (__predict_false(totlen > len)) 1840 break; 1841 1842 /* Process 802.11 frame. */ 1843 m = rsu_rx_frame(sc, buf, pktlen); 1844 if (m0 == NULL) 1845 m0 = m; 1846 if (prevm == NULL) 1847 prevm = m; 1848 else { 1849 prevm->m_next = m; 1850 prevm = m; 1851 } 1852 /* Next chunk is 128-byte aligned. */ 1853 totlen = (totlen + 127) & ~127; 1854 buf += totlen; 1855 len -= totlen; 1856 } 1857 1858 return (m0); 1859 } 1860 1861 static struct mbuf * 1862 rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data) 1863 { 1864 struct rsu_softc *sc = data->sc; 1865 struct ieee80211com *ic = &sc->sc_ic; 1866 struct r92s_rx_stat *stat; 1867 int len; 1868 1869 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 1870 1871 if (__predict_false(len < sizeof(*stat))) { 1872 DPRINTF("xfer too short %d\n", len); 1873 counter_u64_add(ic->ic_ierrors, 1); 1874 return (NULL); 1875 } 1876 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 1877 stat = (struct r92s_rx_stat *)data->buf; 1878 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 1879 rsu_rx_multi_event(sc, data->buf, len); 1880 /* No packets to process. */ 1881 return (NULL); 1882 } else 1883 return (rsu_rx_multi_frame(sc, data->buf, len)); 1884 } 1885 1886 static void 1887 rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 1888 { 1889 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1890 struct ieee80211com *ic = &sc->sc_ic; 1891 struct ieee80211_frame *wh; 1892 struct ieee80211_node *ni; 1893 struct mbuf *m = NULL, *next; 1894 struct rsu_data *data; 1895 1896 RSU_ASSERT_LOCKED(sc); 1897 1898 switch (USB_GET_STATE(xfer)) { 1899 case USB_ST_TRANSFERRED: 1900 data = STAILQ_FIRST(&sc->sc_rx_active); 1901 if (data == NULL) 1902 goto tr_setup; 1903 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 1904 m = rsu_rxeof(xfer, data); 1905 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 1906 /* FALLTHROUGH */ 1907 case USB_ST_SETUP: 1908 tr_setup: 1909 /* 1910 * XXX TODO: if we have an mbuf list, but then 1911 * we hit data == NULL, what now? 1912 */ 1913 data = STAILQ_FIRST(&sc->sc_rx_inactive); 1914 if (data == NULL) { 1915 KASSERT(m == NULL, ("mbuf isn't NULL")); 1916 return; 1917 } 1918 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 1919 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 1920 usbd_xfer_set_frame_data(xfer, 0, data->buf, 1921 usbd_xfer_max_len(xfer)); 1922 usbd_transfer_submit(xfer); 1923 /* 1924 * To avoid LOR we should unlock our private mutex here to call 1925 * ieee80211_input() because here is at the end of a USB 1926 * callback and safe to unlock. 1927 */ 1928 RSU_UNLOCK(sc); 1929 while (m != NULL) { 1930 int rssi; 1931 1932 /* Cheat and get the last calibrated RSSI */ 1933 rssi = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 1934 1935 next = m->m_next; 1936 m->m_next = NULL; 1937 wh = mtod(m, struct ieee80211_frame *); 1938 ni = ieee80211_find_rxnode(ic, 1939 (struct ieee80211_frame_min *)wh); 1940 if (ni != NULL) { 1941 if (ni->ni_flags & IEEE80211_NODE_HT) 1942 m->m_flags |= M_AMPDU; 1943 (void)ieee80211_input(ni, m, rssi, -96); 1944 ieee80211_free_node(ni); 1945 } else 1946 (void)ieee80211_input_all(ic, m, rssi, -96); 1947 m = next; 1948 } 1949 RSU_LOCK(sc); 1950 break; 1951 default: 1952 /* needs it to the inactive queue due to a error. */ 1953 data = STAILQ_FIRST(&sc->sc_rx_active); 1954 if (data != NULL) { 1955 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 1956 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 1957 } 1958 if (error != USB_ERR_CANCELLED) { 1959 usbd_xfer_set_stall(xfer); 1960 counter_u64_add(ic->ic_ierrors, 1); 1961 goto tr_setup; 1962 } 1963 break; 1964 } 1965 1966 } 1967 1968 static void 1969 rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 1970 { 1971 #ifdef USB_DEBUG 1972 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1973 #endif 1974 1975 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 1976 __func__, 1977 data); 1978 1979 if (data->m) { 1980 /* XXX status? */ 1981 ieee80211_tx_complete(data->ni, data->m, 0); 1982 data->m = NULL; 1983 data->ni = NULL; 1984 } 1985 } 1986 1987 static void 1988 rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 1989 uint8_t which) 1990 { 1991 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1992 struct ieee80211com *ic = &sc->sc_ic; 1993 struct rsu_data *data; 1994 1995 RSU_ASSERT_LOCKED(sc); 1996 1997 switch (USB_GET_STATE(xfer)) { 1998 case USB_ST_TRANSFERRED: 1999 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2000 if (data == NULL) 2001 goto tr_setup; 2002 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 2003 __func__, data); 2004 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2005 rsu_txeof(xfer, data); 2006 rsu_freebuf(sc, data); 2007 /* FALLTHROUGH */ 2008 case USB_ST_SETUP: 2009 tr_setup: 2010 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 2011 if (data == NULL) { 2012 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2013 "%s: empty pending queue sc %p\n", __func__, sc); 2014 return; 2015 } 2016 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 2017 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 2018 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 2019 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2020 "%s: submitting transfer %p\n", 2021 __func__, 2022 data); 2023 usbd_transfer_submit(xfer); 2024 break; 2025 default: 2026 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2027 if (data != NULL) { 2028 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2029 rsu_txeof(xfer, data); 2030 rsu_freebuf(sc, data); 2031 } 2032 counter_u64_add(ic->ic_oerrors, 1); 2033 2034 if (error != USB_ERR_CANCELLED) { 2035 usbd_xfer_set_stall(xfer); 2036 goto tr_setup; 2037 } 2038 break; 2039 } 2040 2041 /* 2042 * XXX TODO: if the queue is low, flush out FF TX frames. 2043 * Remember to unlock the driver for now; net80211 doesn't 2044 * defer it for us. 2045 */ 2046 } 2047 2048 static void 2049 rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 2050 { 2051 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2052 2053 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 2054 2055 /* This kicks the TX taskqueue */ 2056 rsu_start(sc); 2057 } 2058 2059 static void 2060 rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 2061 { 2062 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2063 2064 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 2065 2066 /* This kicks the TX taskqueue */ 2067 rsu_start(sc); 2068 } 2069 2070 static void 2071 rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2072 { 2073 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2074 2075 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2076 2077 /* This kicks the TX taskqueue */ 2078 rsu_start(sc); 2079 } 2080 2081 /* 2082 * Transmit the given frame. 2083 * 2084 * This doesn't free the node or mbuf upon failure. 2085 */ 2086 static int 2087 rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2088 struct mbuf *m0, struct rsu_data *data) 2089 { 2090 struct ieee80211com *ic = &sc->sc_ic; 2091 struct ieee80211vap *vap = ni->ni_vap; 2092 struct ieee80211_frame *wh; 2093 struct ieee80211_key *k = NULL; 2094 struct r92s_tx_desc *txd; 2095 uint8_t type; 2096 int prio = 0; 2097 uint8_t which; 2098 int hasqos; 2099 int xferlen; 2100 int qid; 2101 2102 RSU_ASSERT_LOCKED(sc); 2103 2104 wh = mtod(m0, struct ieee80211_frame *); 2105 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2106 2107 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2108 __func__, data, m0); 2109 2110 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2111 k = ieee80211_crypto_encap(ni, m0); 2112 if (k == NULL) { 2113 device_printf(sc->sc_dev, 2114 "ieee80211_crypto_encap returns NULL.\n"); 2115 /* XXX we don't expect the fragmented frames */ 2116 return (ENOBUFS); 2117 } 2118 wh = mtod(m0, struct ieee80211_frame *); 2119 } 2120 /* If we have QoS then use it */ 2121 /* XXX TODO: mbuf WME/PRI versus TID? */ 2122 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2123 /* Has QoS */ 2124 prio = M_WME_GETAC(m0); 2125 which = rsu_wme_ac_xfer_map[prio]; 2126 hasqos = 1; 2127 } else { 2128 /* Non-QoS TID */ 2129 /* XXX TODO: tid=0 for non-qos TID? */ 2130 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2131 hasqos = 0; 2132 prio = 0; 2133 } 2134 2135 qid = rsu_ac2qid[prio]; 2136 #if 0 2137 switch (type) { 2138 case IEEE80211_FC0_TYPE_CTL: 2139 case IEEE80211_FC0_TYPE_MGT: 2140 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2141 break; 2142 default: 2143 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2144 break; 2145 } 2146 hasqos = 0; 2147 #endif 2148 2149 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2150 __func__, 2151 prio, 2152 which, 2153 hasqos); 2154 2155 /* Fill Tx descriptor. */ 2156 txd = (struct r92s_tx_desc *)data->buf; 2157 memset(txd, 0, sizeof(*txd)); 2158 2159 txd->txdw0 |= htole32( 2160 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2161 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2162 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2163 2164 txd->txdw1 |= htole32( 2165 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2166 if (!hasqos) 2167 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2168 #ifdef notyet 2169 if (k != NULL) { 2170 switch (k->wk_cipher->ic_cipher) { 2171 case IEEE80211_CIPHER_WEP: 2172 cipher = R92S_TXDW1_CIPHER_WEP; 2173 break; 2174 case IEEE80211_CIPHER_TKIP: 2175 cipher = R92S_TXDW1_CIPHER_TKIP; 2176 break; 2177 case IEEE80211_CIPHER_AES_CCM: 2178 cipher = R92S_TXDW1_CIPHER_AES; 2179 break; 2180 default: 2181 cipher = R92S_TXDW1_CIPHER_NONE; 2182 } 2183 txd->txdw1 |= htole32( 2184 SM(R92S_TXDW1_CIPHER, cipher) | 2185 SM(R92S_TXDW1_KEYIDX, k->k_id)); 2186 } 2187 #endif 2188 /* XXX todo: set AGGEN bit if appropriate? */ 2189 txd->txdw2 |= htole32(R92S_TXDW2_BK); 2190 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 2191 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2192 /* 2193 * Firmware will use and increment the sequence number for the 2194 * specified priority. 2195 */ 2196 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2197 2198 if (ieee80211_radiotap_active_vap(vap)) { 2199 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2200 2201 tap->wt_flags = 0; 2202 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 2203 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 2204 ieee80211_radiotap_tx(vap, m0); 2205 } 2206 2207 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2208 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2209 2210 data->buflen = xferlen; 2211 data->ni = ni; 2212 data->m = m0; 2213 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2214 2215 /* start transfer, if any */ 2216 usbd_transfer_start(sc->sc_xfer[which]); 2217 return (0); 2218 } 2219 2220 static int 2221 rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2222 { 2223 struct rsu_softc *sc = ic->ic_softc; 2224 int error; 2225 2226 RSU_LOCK(sc); 2227 if (!sc->sc_running) { 2228 RSU_UNLOCK(sc); 2229 return (ENXIO); 2230 } 2231 2232 /* 2233 * XXX TODO: ensure that we treat 'm' as a list of frames 2234 * to transmit! 2235 */ 2236 error = mbufq_enqueue(&sc->sc_snd, m); 2237 if (error) { 2238 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2239 "%s: mbufq_enable: failed (%d)\n", 2240 __func__, 2241 error); 2242 RSU_UNLOCK(sc); 2243 return (error); 2244 } 2245 RSU_UNLOCK(sc); 2246 2247 /* This kicks the TX taskqueue */ 2248 rsu_start(sc); 2249 2250 return (0); 2251 } 2252 2253 static void 2254 rsu_drain_mbufq(struct rsu_softc *sc) 2255 { 2256 struct mbuf *m; 2257 struct ieee80211_node *ni; 2258 2259 RSU_ASSERT_LOCKED(sc); 2260 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2261 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2262 m->m_pkthdr.rcvif = NULL; 2263 ieee80211_free_node(ni); 2264 m_freem(m); 2265 } 2266 } 2267 2268 static void 2269 _rsu_start(struct rsu_softc *sc) 2270 { 2271 struct ieee80211_node *ni; 2272 struct rsu_data *bf; 2273 struct mbuf *m; 2274 2275 RSU_ASSERT_LOCKED(sc); 2276 2277 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2278 bf = rsu_getbuf(sc); 2279 if (bf == NULL) { 2280 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2281 "%s: failed to get buffer\n", __func__); 2282 mbufq_prepend(&sc->sc_snd, m); 2283 break; 2284 } 2285 2286 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2287 m->m_pkthdr.rcvif = NULL; 2288 2289 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2290 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2291 "%s: failed to transmit\n", __func__); 2292 if_inc_counter(ni->ni_vap->iv_ifp, 2293 IFCOUNTER_OERRORS, 1); 2294 rsu_freebuf(sc, bf); 2295 ieee80211_free_node(ni); 2296 m_freem(m); 2297 break; 2298 } 2299 } 2300 } 2301 2302 static void 2303 rsu_start(struct rsu_softc *sc) 2304 { 2305 2306 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 2307 } 2308 2309 static void 2310 rsu_parent(struct ieee80211com *ic) 2311 { 2312 struct rsu_softc *sc = ic->ic_softc; 2313 int startall = 0; 2314 2315 RSU_LOCK(sc); 2316 if (ic->ic_nrunning > 0) { 2317 if (!sc->sc_running) { 2318 rsu_init(sc); 2319 startall = 1; 2320 } 2321 } else if (sc->sc_running) 2322 rsu_stop(sc); 2323 RSU_UNLOCK(sc); 2324 2325 if (startall) 2326 ieee80211_start_all(ic); 2327 } 2328 2329 /* 2330 * Power on sequence for A-cut adapters. 2331 */ 2332 static void 2333 rsu_power_on_acut(struct rsu_softc *sc) 2334 { 2335 uint32_t reg; 2336 2337 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 2338 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 2339 2340 /* Enable AFE macro block's bandgap and Mbias. */ 2341 rsu_write_1(sc, R92S_AFE_MISC, 2342 rsu_read_1(sc, R92S_AFE_MISC) | 2343 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 2344 /* Enable LDOA15 block. */ 2345 rsu_write_1(sc, R92S_LDOA15_CTRL, 2346 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 2347 2348 rsu_write_1(sc, R92S_SPS1_CTRL, 2349 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 2350 rsu_ms_delay(sc, 2000); 2351 /* Enable switch regulator block. */ 2352 rsu_write_1(sc, R92S_SPS1_CTRL, 2353 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 2354 2355 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 2356 2357 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2358 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 2359 2360 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2361 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 2362 2363 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2364 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 2365 2366 /* Enable AFE clock. */ 2367 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 2368 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 2369 /* Enable AFE PLL macro block. */ 2370 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 2371 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 2372 /* Attach AFE PLL to MACTOP/BB. */ 2373 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 2374 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 2375 2376 /* Switch to 40MHz clock instead of 80MHz. */ 2377 rsu_write_2(sc, R92S_SYS_CLKR, 2378 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 2379 2380 /* Enable MAC clock. */ 2381 rsu_write_2(sc, R92S_SYS_CLKR, 2382 rsu_read_2(sc, R92S_SYS_CLKR) | 2383 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 2384 2385 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 2386 2387 /* Enable digital core and IOREG R/W. */ 2388 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2389 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 2390 2391 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2392 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 2393 2394 /* Switch the control path to firmware. */ 2395 reg = rsu_read_2(sc, R92S_SYS_CLKR); 2396 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 2397 rsu_write_2(sc, R92S_SYS_CLKR, reg); 2398 2399 rsu_write_2(sc, R92S_CR, 0x37fc); 2400 2401 /* Fix USB RX FIFO issue. */ 2402 rsu_write_1(sc, 0xfe5c, 2403 rsu_read_1(sc, 0xfe5c) | 0x80); 2404 rsu_write_1(sc, 0x00ab, 2405 rsu_read_1(sc, 0x00ab) | 0xc0); 2406 2407 rsu_write_1(sc, R92S_SYS_CLKR, 2408 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 2409 } 2410 2411 /* 2412 * Power on sequence for B-cut and C-cut adapters. 2413 */ 2414 static void 2415 rsu_power_on_bcut(struct rsu_softc *sc) 2416 { 2417 uint32_t reg; 2418 int ntries; 2419 2420 /* Prevent eFuse leakage. */ 2421 rsu_write_1(sc, 0x37, 0xb0); 2422 rsu_ms_delay(sc, 10); 2423 rsu_write_1(sc, 0x37, 0x30); 2424 2425 /* Switch the control path to hardware. */ 2426 reg = rsu_read_2(sc, R92S_SYS_CLKR); 2427 if (reg & R92S_FWHW_SEL) { 2428 rsu_write_2(sc, R92S_SYS_CLKR, 2429 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 2430 } 2431 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2432 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 2433 rsu_ms_delay(sc, 1); 2434 2435 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 2436 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 2437 2438 reg = rsu_read_1(sc, R92S_AFE_MISC); 2439 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 2440 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 2441 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 2442 2443 /* Enable PLL. */ 2444 rsu_write_1(sc, R92S_LDOA15_CTRL, 2445 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 2446 2447 rsu_write_1(sc, R92S_LDOV12D_CTRL, 2448 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 2449 2450 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2451 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 2452 2453 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2454 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 2455 2456 /* Support 64KB IMEM. */ 2457 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2458 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 2459 2460 /* Enable AFE clock. */ 2461 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 2462 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 2463 /* Enable AFE PLL macro block. */ 2464 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 2465 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 2466 rsu_ms_delay(sc, 1); 2467 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 2468 rsu_ms_delay(sc, 1); 2469 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 2470 rsu_ms_delay(sc, 1); 2471 2472 /* Attach AFE PLL to MACTOP/BB. */ 2473 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 2474 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 2475 2476 /* Switch to 40MHz clock. */ 2477 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 2478 /* Disable CPU clock and 80MHz SSC. */ 2479 rsu_write_1(sc, R92S_SYS_CLKR, 2480 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 2481 /* Enable MAC clock. */ 2482 rsu_write_2(sc, R92S_SYS_CLKR, 2483 rsu_read_2(sc, R92S_SYS_CLKR) | 2484 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 2485 2486 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 2487 2488 /* Enable digital core and IOREG R/W. */ 2489 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2490 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 2491 2492 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2493 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 2494 2495 /* Switch the control path to firmware. */ 2496 reg = rsu_read_2(sc, R92S_SYS_CLKR); 2497 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 2498 rsu_write_2(sc, R92S_SYS_CLKR, reg); 2499 2500 rsu_write_2(sc, R92S_CR, 0x37fc); 2501 2502 /* Fix USB RX FIFO issue. */ 2503 rsu_write_1(sc, 0xfe5c, 2504 rsu_read_1(sc, 0xfe5c) | 0x80); 2505 2506 rsu_write_1(sc, R92S_SYS_CLKR, 2507 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 2508 2509 rsu_write_1(sc, 0xfe1c, 0x80); 2510 2511 /* Make sure TxDMA is ready to download firmware. */ 2512 for (ntries = 0; ntries < 20; ntries++) { 2513 reg = rsu_read_1(sc, R92S_TCR); 2514 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 2515 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 2516 break; 2517 rsu_ms_delay(sc, 1); 2518 } 2519 if (ntries == 20) { 2520 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 2521 "%s: TxDMA is not ready\n", 2522 __func__); 2523 /* Reset TxDMA. */ 2524 reg = rsu_read_1(sc, R92S_CR); 2525 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 2526 rsu_ms_delay(sc, 1); 2527 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 2528 } 2529 } 2530 2531 static void 2532 rsu_power_off(struct rsu_softc *sc) 2533 { 2534 /* Turn RF off. */ 2535 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 2536 rsu_ms_delay(sc, 5); 2537 2538 /* Turn MAC off. */ 2539 /* Switch control path. */ 2540 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 2541 /* Reset MACTOP. */ 2542 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 2543 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 2544 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 2545 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 2546 2547 /* Disable AFE PLL. */ 2548 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 2549 /* Disable A15V. */ 2550 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 2551 /* Disable eFuse 1.2V. */ 2552 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 2553 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 2554 /* Enable AFE macro block's bandgap and Mbias. */ 2555 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 2556 /* Disable 1.6V LDO. */ 2557 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 2558 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 2559 2560 /* Firmware - tell it to switch things off */ 2561 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 2562 } 2563 2564 static int 2565 rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 2566 { 2567 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2568 struct rsu_data *data; 2569 struct r92s_tx_desc *txd; 2570 int mlen; 2571 2572 while (len > 0) { 2573 data = rsu_getbuf(sc); 2574 if (data == NULL) 2575 return (ENOMEM); 2576 txd = (struct r92s_tx_desc *)data->buf; 2577 memset(txd, 0, sizeof(*txd)); 2578 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 2579 /* Last chunk. */ 2580 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 2581 mlen = len; 2582 } else 2583 mlen = RSU_TXBUFSZ - sizeof(*txd); 2584 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 2585 memcpy(&txd[1], buf, mlen); 2586 data->buflen = sizeof(*txd) + mlen; 2587 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 2588 "%s: starting transfer %p\n", 2589 __func__, data); 2590 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2591 buf += mlen; 2592 len -= mlen; 2593 } 2594 usbd_transfer_start(sc->sc_xfer[which]); 2595 return (0); 2596 } 2597 2598 static int 2599 rsu_load_firmware(struct rsu_softc *sc) 2600 { 2601 const struct r92s_fw_hdr *hdr; 2602 struct r92s_fw_priv *dmem; 2603 struct ieee80211com *ic = &sc->sc_ic; 2604 const uint8_t *imem, *emem; 2605 int imemsz, ememsz; 2606 const struct firmware *fw; 2607 size_t size; 2608 uint32_t reg; 2609 int ntries, error; 2610 2611 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 2612 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 2613 "%s: Firmware already loaded\n", 2614 __func__); 2615 return (0); 2616 } 2617 2618 RSU_UNLOCK(sc); 2619 /* Read firmware image from the filesystem. */ 2620 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 2621 device_printf(sc->sc_dev, 2622 "%s: failed load firmware of file rsu-rtl8712fw\n", 2623 __func__); 2624 RSU_LOCK(sc); 2625 return (ENXIO); 2626 } 2627 RSU_LOCK(sc); 2628 size = fw->datasize; 2629 if (size < sizeof(*hdr)) { 2630 device_printf(sc->sc_dev, "firmware too short\n"); 2631 error = EINVAL; 2632 goto fail; 2633 } 2634 hdr = (const struct r92s_fw_hdr *)fw->data; 2635 if (hdr->signature != htole16(0x8712) && 2636 hdr->signature != htole16(0x8192)) { 2637 device_printf(sc->sc_dev, 2638 "invalid firmware signature 0x%x\n", 2639 le16toh(hdr->signature)); 2640 error = EINVAL; 2641 goto fail; 2642 } 2643 DPRINTF("FW V%d %02x-%02x %02x:%02x\n", le16toh(hdr->version), 2644 hdr->month, hdr->day, hdr->hour, hdr->minute); 2645 2646 /* Make sure that driver and firmware are in sync. */ 2647 if (hdr->privsz != htole32(sizeof(*dmem))) { 2648 device_printf(sc->sc_dev, "unsupported firmware image\n"); 2649 error = EINVAL; 2650 goto fail; 2651 } 2652 /* Get FW sections sizes. */ 2653 imemsz = le32toh(hdr->imemsz); 2654 ememsz = le32toh(hdr->sramsz); 2655 /* Check that all FW sections fit in image. */ 2656 if (size < sizeof(*hdr) + imemsz + ememsz) { 2657 device_printf(sc->sc_dev, "firmware too short\n"); 2658 error = EINVAL; 2659 goto fail; 2660 } 2661 imem = (const uint8_t *)&hdr[1]; 2662 emem = imem + imemsz; 2663 2664 /* Load IMEM section. */ 2665 error = rsu_fw_loadsection(sc, imem, imemsz); 2666 if (error != 0) { 2667 device_printf(sc->sc_dev, 2668 "could not load firmware section %s\n", "IMEM"); 2669 goto fail; 2670 } 2671 /* Wait for load to complete. */ 2672 for (ntries = 0; ntries != 50; ntries++) { 2673 rsu_ms_delay(sc, 10); 2674 reg = rsu_read_1(sc, R92S_TCR); 2675 if (reg & R92S_TCR_IMEM_CODE_DONE) 2676 break; 2677 } 2678 if (ntries == 50) { 2679 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 2680 error = ETIMEDOUT; 2681 goto fail; 2682 } 2683 /* Load EMEM section. */ 2684 error = rsu_fw_loadsection(sc, emem, ememsz); 2685 if (error != 0) { 2686 device_printf(sc->sc_dev, 2687 "could not load firmware section %s\n", "EMEM"); 2688 goto fail; 2689 } 2690 /* Wait for load to complete. */ 2691 for (ntries = 0; ntries != 50; ntries++) { 2692 rsu_ms_delay(sc, 10); 2693 reg = rsu_read_2(sc, R92S_TCR); 2694 if (reg & R92S_TCR_EMEM_CODE_DONE) 2695 break; 2696 } 2697 if (ntries == 50) { 2698 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 2699 error = ETIMEDOUT; 2700 goto fail; 2701 } 2702 /* Enable CPU. */ 2703 rsu_write_1(sc, R92S_SYS_CLKR, 2704 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 2705 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 2706 device_printf(sc->sc_dev, "could not enable system clock\n"); 2707 error = EIO; 2708 goto fail; 2709 } 2710 rsu_write_2(sc, R92S_SYS_FUNC_EN, 2711 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 2712 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 2713 device_printf(sc->sc_dev, 2714 "could not enable microcontroller\n"); 2715 error = EIO; 2716 goto fail; 2717 } 2718 /* Wait for CPU to initialize. */ 2719 for (ntries = 0; ntries < 100; ntries++) { 2720 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 2721 break; 2722 rsu_ms_delay(sc, 1); 2723 } 2724 if (ntries == 100) { 2725 device_printf(sc->sc_dev, 2726 "timeout waiting for microcontroller\n"); 2727 error = ETIMEDOUT; 2728 goto fail; 2729 } 2730 2731 /* Update DMEM section before loading. */ 2732 dmem = __DECONST(struct r92s_fw_priv *, &hdr->priv); 2733 memset(dmem, 0, sizeof(*dmem)); 2734 dmem->hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 2735 dmem->nendpoints = sc->sc_nendpoints; 2736 dmem->chip_version = sc->cut; 2737 dmem->rf_config = sc->sc_rftype; 2738 dmem->vcs_type = R92S_VCS_TYPE_AUTO; 2739 dmem->vcs_mode = R92S_VCS_MODE_RTS_CTS; 2740 dmem->turbo_mode = 0; 2741 dmem->bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 2742 dmem->amsdu2ampdu_en = !! (sc->sc_ht); 2743 dmem->ampdu_en = !! (sc->sc_ht); 2744 dmem->agg_offload = !! (sc->sc_ht); 2745 dmem->qos_en = 1; 2746 dmem->ps_offload = 1; 2747 dmem->lowpower_mode = 1; /* XXX TODO: configurable? */ 2748 /* Load DMEM section. */ 2749 error = rsu_fw_loadsection(sc, (uint8_t *)dmem, sizeof(*dmem)); 2750 if (error != 0) { 2751 device_printf(sc->sc_dev, 2752 "could not load firmware section %s\n", "DMEM"); 2753 goto fail; 2754 } 2755 /* Wait for load to complete. */ 2756 for (ntries = 0; ntries < 100; ntries++) { 2757 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 2758 break; 2759 rsu_ms_delay(sc, 1); 2760 } 2761 if (ntries == 100) { 2762 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 2763 "DMEM"); 2764 error = ETIMEDOUT; 2765 goto fail; 2766 } 2767 /* Wait for firmware readiness. */ 2768 for (ntries = 0; ntries < 60; ntries++) { 2769 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 2770 break; 2771 rsu_ms_delay(sc, 1); 2772 } 2773 if (ntries == 60) { 2774 device_printf(sc->sc_dev, 2775 "timeout waiting for firmware readiness\n"); 2776 error = ETIMEDOUT; 2777 goto fail; 2778 } 2779 fail: 2780 firmware_put(fw, FIRMWARE_UNLOAD); 2781 return (error); 2782 } 2783 2784 2785 static int 2786 rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2787 const struct ieee80211_bpf_params *params) 2788 { 2789 struct ieee80211com *ic = ni->ni_ic; 2790 struct rsu_softc *sc = ic->ic_softc; 2791 struct rsu_data *bf; 2792 2793 /* prevent management frames from being sent if we're not ready */ 2794 if (!sc->sc_running) { 2795 m_freem(m); 2796 return (ENETDOWN); 2797 } 2798 RSU_LOCK(sc); 2799 bf = rsu_getbuf(sc); 2800 if (bf == NULL) { 2801 m_freem(m); 2802 RSU_UNLOCK(sc); 2803 return (ENOBUFS); 2804 } 2805 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2806 m_freem(m); 2807 rsu_freebuf(sc, bf); 2808 RSU_UNLOCK(sc); 2809 return (EIO); 2810 } 2811 RSU_UNLOCK(sc); 2812 2813 return (0); 2814 } 2815 2816 static void 2817 rsu_init(struct rsu_softc *sc) 2818 { 2819 struct ieee80211com *ic = &sc->sc_ic; 2820 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2821 uint8_t macaddr[IEEE80211_ADDR_LEN]; 2822 int error; 2823 int i; 2824 2825 RSU_ASSERT_LOCKED(sc); 2826 2827 /* Ensure the mbuf queue is drained */ 2828 rsu_drain_mbufq(sc); 2829 2830 /* Init host async commands ring. */ 2831 sc->cmdq.cur = sc->cmdq.next = sc->cmdq.queued = 0; 2832 2833 /* Reset power management state. */ 2834 rsu_write_1(sc, R92S_USB_HRPWM, 0); 2835 2836 /* Power on adapter. */ 2837 if (sc->cut == 1) 2838 rsu_power_on_acut(sc); 2839 else 2840 rsu_power_on_bcut(sc); 2841 2842 /* Load firmware. */ 2843 error = rsu_load_firmware(sc); 2844 if (error != 0) 2845 goto fail; 2846 2847 /* Enable Rx TCP checksum offload. */ 2848 rsu_write_4(sc, R92S_RCR, 2849 rsu_read_4(sc, R92S_RCR) | 0x04000000); 2850 /* Append PHY status. */ 2851 rsu_write_4(sc, R92S_RCR, 2852 rsu_read_4(sc, R92S_RCR) | 0x02000000); 2853 2854 rsu_write_4(sc, R92S_CR, 2855 rsu_read_4(sc, R92S_CR) & ~0xff000000); 2856 2857 /* Use 128 bytes pages. */ 2858 rsu_write_1(sc, 0x00b5, 2859 rsu_read_1(sc, 0x00b5) | 0x01); 2860 /* Enable USB Rx aggregation. */ 2861 rsu_write_1(sc, 0x00bd, 2862 rsu_read_1(sc, 0x00bd) | 0x80); 2863 /* Set USB Rx aggregation threshold. */ 2864 rsu_write_1(sc, 0x00d9, 0x01); 2865 /* Set USB Rx aggregation timeout (1.7ms/4). */ 2866 rsu_write_1(sc, 0xfe5b, 0x04); 2867 /* Fix USB Rx FIFO issue. */ 2868 rsu_write_1(sc, 0xfe5c, 2869 rsu_read_1(sc, 0xfe5c) | 0x80); 2870 2871 /* Set MAC address. */ 2872 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 2873 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 2874 2875 /* It really takes 1.5 seconds for the firmware to boot: */ 2876 rsu_ms_delay(sc, 2000); 2877 2878 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 2879 __func__, 2880 ether_sprintf(macaddr)); 2881 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 2882 IEEE80211_ADDR_LEN); 2883 if (error != 0) { 2884 device_printf(sc->sc_dev, "could not set MAC address\n"); 2885 goto fail; 2886 } 2887 2888 /* Set PS mode fully active */ 2889 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 2890 2891 if (error != 0) { 2892 device_printf(sc->sc_dev, "could not set PS mode\n"); 2893 goto fail; 2894 } 2895 2896 sc->sc_scan_pass = 0; 2897 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 2898 2899 /* We're ready to go. */ 2900 sc->sc_running = 1; 2901 sc->sc_scanning = 0; 2902 return; 2903 fail: 2904 /* Need to stop all failed transfers, if any */ 2905 for (i = 0; i != RSU_N_TRANSFER; i++) 2906 usbd_transfer_stop(sc->sc_xfer[i]); 2907 } 2908 2909 static void 2910 rsu_stop(struct rsu_softc *sc) 2911 { 2912 int i; 2913 2914 RSU_ASSERT_LOCKED(sc); 2915 2916 sc->sc_running = 0; 2917 sc->sc_calibrating = 0; 2918 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 2919 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 2920 2921 /* Power off adapter. */ 2922 rsu_power_off(sc); 2923 2924 for (i = 0; i < RSU_N_TRANSFER; i++) 2925 usbd_transfer_stop(sc->sc_xfer[i]); 2926 2927 /* Ensure the mbuf queue is drained */ 2928 rsu_drain_mbufq(sc); 2929 } 2930 2931 /* 2932 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 2933 * which breaks any kind of driver serialisation. 2934 */ 2935 static void 2936 rsu_ms_delay(struct rsu_softc *sc, int ms) 2937 { 2938 2939 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 2940 DELAY(ms * 1000); 2941 } 2942