if_rsu.c revision 288320
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: head/sys/dev/usb/wlan/if_rsu.c 288320 2015-09-28 01:16:44Z adrian $"); 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 77static int rsu_debug = 0; 78SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW, 0, "USB rsu"); 79SYSCTL_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 90static int rsu_enable_11n = 1; 91TUNABLE_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 106static 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 156static device_probe_t rsu_match; 157static device_attach_t rsu_attach; 158static device_detach_t rsu_detach; 159static usb_callback_t rsu_bulk_tx_callback_be_bk; 160static usb_callback_t rsu_bulk_tx_callback_vi_vo; 161static usb_callback_t rsu_bulk_tx_callback_h2c; 162static usb_callback_t rsu_bulk_rx_callback; 163static usb_error_t rsu_do_request(struct rsu_softc *, 164 struct usb_device_request *, void *); 165static 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[]); 169static void rsu_vap_delete(struct ieee80211vap *); 170static void rsu_scan_start(struct ieee80211com *); 171static void rsu_scan_end(struct ieee80211com *); 172static void rsu_set_channel(struct ieee80211com *); 173static void rsu_update_mcast(struct ieee80211com *); 174static int rsu_alloc_rx_list(struct rsu_softc *); 175static void rsu_free_rx_list(struct rsu_softc *); 176static int rsu_alloc_tx_list(struct rsu_softc *); 177static void rsu_free_tx_list(struct rsu_softc *); 178static void rsu_free_list(struct rsu_softc *, struct rsu_data [], int); 179static struct rsu_data *_rsu_getbuf(struct rsu_softc *); 180static struct rsu_data *rsu_getbuf(struct rsu_softc *); 181static void rsu_freebuf(struct rsu_softc *, struct rsu_data *); 182static int rsu_write_region_1(struct rsu_softc *, uint16_t, uint8_t *, 183 int); 184static void rsu_write_1(struct rsu_softc *, uint16_t, uint8_t); 185static void rsu_write_2(struct rsu_softc *, uint16_t, uint16_t); 186static void rsu_write_4(struct rsu_softc *, uint16_t, uint32_t); 187static int rsu_read_region_1(struct rsu_softc *, uint16_t, uint8_t *, 188 int); 189static uint8_t rsu_read_1(struct rsu_softc *, uint16_t); 190static uint16_t rsu_read_2(struct rsu_softc *, uint16_t); 191static uint32_t rsu_read_4(struct rsu_softc *, uint16_t); 192static int rsu_fw_iocmd(struct rsu_softc *, uint32_t); 193static uint8_t rsu_efuse_read_1(struct rsu_softc *, uint16_t); 194static int rsu_read_rom(struct rsu_softc *); 195static int rsu_fw_cmd(struct rsu_softc *, uint8_t, void *, int); 196static void rsu_calib_task(void *, int); 197static void rsu_tx_task(void *, int); 198static int rsu_newstate(struct ieee80211vap *, enum ieee80211_state, int); 199#ifdef notyet 200static void rsu_set_key(struct rsu_softc *, const struct ieee80211_key *); 201static void rsu_delete_key(struct rsu_softc *, const struct ieee80211_key *); 202#endif 203static int rsu_site_survey(struct rsu_softc *, struct ieee80211vap *); 204static int rsu_join_bss(struct rsu_softc *, struct ieee80211_node *); 205static int rsu_disconnect(struct rsu_softc *); 206static void rsu_event_survey(struct rsu_softc *, uint8_t *, int); 207static void rsu_event_join_bss(struct rsu_softc *, uint8_t *, int); 208static void rsu_rx_event(struct rsu_softc *, uint8_t, uint8_t *, int); 209static void rsu_rx_multi_event(struct rsu_softc *, uint8_t *, int); 210static int8_t rsu_get_rssi(struct rsu_softc *, int, void *); 211static struct mbuf * 212 rsu_rx_frame(struct rsu_softc *, uint8_t *, int, int *); 213static struct mbuf * 214 rsu_rx_multi_frame(struct rsu_softc *, uint8_t *, int, int *); 215static struct mbuf * 216 rsu_rxeof(struct usb_xfer *, struct rsu_data *, int *); 217static void rsu_txeof(struct usb_xfer *, struct rsu_data *); 218static int rsu_raw_xmit(struct ieee80211_node *, struct mbuf *, 219 const struct ieee80211_bpf_params *); 220static void rsu_init(struct rsu_softc *); 221static int rsu_tx_start(struct rsu_softc *, struct ieee80211_node *, 222 struct mbuf *, struct rsu_data *); 223static int rsu_transmit(struct ieee80211com *, struct mbuf *); 224static void rsu_start(struct rsu_softc *); 225static void _rsu_start(struct rsu_softc *); 226static void rsu_parent(struct ieee80211com *); 227static void rsu_stop(struct rsu_softc *); 228static void rsu_ms_delay(struct rsu_softc *, int); 229 230static device_method_t rsu_methods[] = { 231 DEVMETHOD(device_probe, rsu_match), 232 DEVMETHOD(device_attach, rsu_attach), 233 DEVMETHOD(device_detach, rsu_detach), 234 235 DEVMETHOD_END 236}; 237 238static driver_t rsu_driver = { 239 .name = "rsu", 240 .methods = rsu_methods, 241 .size = sizeof(struct rsu_softc) 242}; 243 244static devclass_t rsu_devclass; 245 246DRIVER_MODULE(rsu, uhub, rsu_driver, rsu_devclass, NULL, 0); 247MODULE_DEPEND(rsu, wlan, 1, 1, 1); 248MODULE_DEPEND(rsu, usb, 1, 1, 1); 249MODULE_DEPEND(rsu, firmware, 1, 1, 1); 250MODULE_VERSION(rsu, 1); 251 252static uint8_t rsu_wme_ac_xfer_map[4] = { 253 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 254 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 255 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 256 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 257}; 258 259/* XXX hard-coded */ 260#define RSU_H2C_ENDPOINT 3 261 262static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 263 [RSU_BULK_RX] = { 264 .type = UE_BULK, 265 .endpoint = UE_ADDR_ANY, 266 .direction = UE_DIR_IN, 267 .bufsize = RSU_RXBUFSZ, 268 .flags = { 269 .pipe_bof = 1, 270 .short_xfer_ok = 1 271 }, 272 .callback = rsu_bulk_rx_callback 273 }, 274 [RSU_BULK_TX_BE_BK] = { 275 .type = UE_BULK, 276 .endpoint = 0x06, 277 .direction = UE_DIR_OUT, 278 .bufsize = RSU_TXBUFSZ, 279 .flags = { 280 .ext_buffer = 1, 281 .pipe_bof = 1, 282 .force_short_xfer = 1 283 }, 284 .callback = rsu_bulk_tx_callback_be_bk, 285 .timeout = RSU_TX_TIMEOUT 286 }, 287 [RSU_BULK_TX_VI_VO] = { 288 .type = UE_BULK, 289 .endpoint = 0x04, 290 .direction = UE_DIR_OUT, 291 .bufsize = RSU_TXBUFSZ, 292 .flags = { 293 .ext_buffer = 1, 294 .pipe_bof = 1, 295 .force_short_xfer = 1 296 }, 297 .callback = rsu_bulk_tx_callback_vi_vo, 298 .timeout = RSU_TX_TIMEOUT 299 }, 300 [RSU_BULK_TX_H2C] = { 301 .type = UE_BULK, 302 .endpoint = 0x0d, 303 .direction = UE_DIR_OUT, 304 .bufsize = RSU_TXBUFSZ, 305 .flags = { 306 .ext_buffer = 1, 307 .pipe_bof = 1, 308 .short_xfer_ok = 1 309 }, 310 .callback = rsu_bulk_tx_callback_h2c, 311 .timeout = RSU_TX_TIMEOUT 312 }, 313}; 314 315static int 316rsu_match(device_t self) 317{ 318 struct usb_attach_arg *uaa = device_get_ivars(self); 319 320 if (uaa->usb_mode != USB_MODE_HOST || 321 uaa->info.bIfaceIndex != 0 || 322 uaa->info.bConfigIndex != 0) 323 return (ENXIO); 324 325 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 326} 327 328static int 329rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 330{ 331 332 return (ENOTSUP); 333} 334 335static void 336rsu_update_chw(struct ieee80211com *ic) 337{ 338 339} 340 341/* 342 * notification from net80211 that it'd like to do A-MPDU on the given TID. 343 * 344 * Note: this actually hangs traffic at the present moment, so don't use it. 345 * The firmware debug does indiciate it's sending and establishing a TX AMPDU 346 * session, but then no traffic flows. 347 */ 348static int 349rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 350{ 351#if 0 352 struct rsu_softc *sc = ni->ni_ic->ic_softc; 353 struct r92s_add_ba_req req; 354 355 /* Don't enable if it's requested or running */ 356 if (IEEE80211_AMPDU_REQUESTED(tap)) 357 return (0); 358 if (IEEE80211_AMPDU_RUNNING(tap)) 359 return (0); 360 361 /* We've decided to send addba; so send it */ 362 req.tid = htole32(tap->txa_tid); 363 364 /* Attempt net80211 state */ 365 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 366 return (0); 367 368 /* Send the firmware command */ 369 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: establishing AMPDU TX for TID %d\n", 370 __func__, 371 tap->txa_tid); 372 373 RSU_LOCK(sc); 374 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 1) { 375 RSU_UNLOCK(sc); 376 /* Mark failure */ 377 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 378 return (0); 379 } 380 RSU_UNLOCK(sc); 381 382 /* Mark success; we don't get any further notifications */ 383 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 384#endif 385 /* Return 0, we're driving this ourselves */ 386 return (0); 387} 388 389static int 390rsu_wme_update(struct ieee80211com *ic) 391{ 392 393 /* Firmware handles this; not our problem */ 394 return (0); 395} 396 397static int 398rsu_attach(device_t self) 399{ 400 struct usb_attach_arg *uaa = device_get_ivars(self); 401 struct rsu_softc *sc = device_get_softc(self); 402 struct ieee80211com *ic = &sc->sc_ic; 403 int error; 404 uint8_t iface_index, bands; 405 struct usb_interface *iface; 406 407 device_set_usb_desc(self); 408 sc->sc_udev = uaa->device; 409 sc->sc_dev = self; 410 if (rsu_enable_11n) 411 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 412 413 /* Get number of endpoints */ 414 iface = usbd_get_iface(sc->sc_udev, 0); 415 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 416 417 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 418 if (sc->sc_nendpoints != 4) { 419 device_printf(sc->sc_dev, 420 "the driver currently only supports 4-endpoint devices\n"); 421 return (ENXIO); 422 } 423 424 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 425 MTX_DEF); 426 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 427 rsu_calib_task, sc); 428 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 429 mbufq_init(&sc->sc_snd, ifqmaxlen); 430 431 /* Allocate Tx/Rx buffers. */ 432 error = rsu_alloc_rx_list(sc); 433 if (error != 0) { 434 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 435 goto fail_usb; 436 } 437 438 error = rsu_alloc_tx_list(sc); 439 if (error != 0) { 440 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 441 rsu_free_rx_list(sc); 442 goto fail_usb; 443 } 444 445 iface_index = 0; 446 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 447 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 448 if (error) { 449 device_printf(sc->sc_dev, 450 "could not allocate USB transfers, err=%s\n", 451 usbd_errstr(error)); 452 goto fail_usb; 453 } 454 RSU_LOCK(sc); 455 /* Read chip revision. */ 456 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 457 if (sc->cut != 3) 458 sc->cut = (sc->cut >> 1) + 1; 459 error = rsu_read_rom(sc); 460 RSU_UNLOCK(sc); 461 if (error != 0) { 462 device_printf(self, "could not read ROM\n"); 463 goto fail_rom; 464 } 465 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 466 device_printf(self, "MAC/BB RTL8712 cut %d\n", sc->cut); 467 468 ic->ic_softc = sc; 469 ic->ic_name = device_get_nameunit(self); 470 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 471 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 472 473 /* Set device capabilities. */ 474 ic->ic_caps = 475 IEEE80211_C_STA | /* station mode */ 476#if 0 477 IEEE80211_C_BGSCAN | /* Background scan. */ 478#endif 479 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 480 IEEE80211_C_WME | /* WME/QoS */ 481 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 482 IEEE80211_C_WPA; /* WPA/RSN. */ 483 484 /* Check if HT support is present. */ 485 if (sc->sc_ht) { 486 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 487 488 /* Enable basic HT */ 489 ic->ic_htcaps = IEEE80211_HTC_HT | 490 IEEE80211_HTC_AMPDU | 491 IEEE80211_HTC_AMSDU | 492 IEEE80211_HTCAP_MAXAMSDU_3839 | 493 IEEE80211_HTCAP_SMPS_OFF; 494 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 495 496 /* set number of spatial streams */ 497 ic->ic_txstream = 1; 498 ic->ic_rxstream = 1; 499 } 500 501 /* Set supported .11b and .11g rates. */ 502 bands = 0; 503 setbit(&bands, IEEE80211_MODE_11B); 504 setbit(&bands, IEEE80211_MODE_11G); 505 if (sc->sc_ht) 506 setbit(&bands, IEEE80211_MODE_11NG); 507 ieee80211_init_channels(ic, NULL, &bands); 508 509 ieee80211_ifattach(ic); 510 ic->ic_raw_xmit = rsu_raw_xmit; 511 ic->ic_scan_start = rsu_scan_start; 512 ic->ic_scan_end = rsu_scan_end; 513 ic->ic_set_channel = rsu_set_channel; 514 ic->ic_vap_create = rsu_vap_create; 515 ic->ic_vap_delete = rsu_vap_delete; 516 ic->ic_update_mcast = rsu_update_mcast; 517 ic->ic_parent = rsu_parent; 518 ic->ic_transmit = rsu_transmit; 519 ic->ic_send_mgmt = rsu_send_mgmt; 520 ic->ic_update_chw = rsu_update_chw; 521 ic->ic_ampdu_enable = rsu_ampdu_enable; 522 ic->ic_wme.wme_update = rsu_wme_update; 523 524 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 525 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 526 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 527 RSU_RX_RADIOTAP_PRESENT); 528 529 if (bootverbose) 530 ieee80211_announce(ic); 531 532 return (0); 533 534fail_rom: 535 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 536fail_usb: 537 mtx_destroy(&sc->sc_mtx); 538 return (ENXIO); 539} 540 541static int 542rsu_detach(device_t self) 543{ 544 struct rsu_softc *sc = device_get_softc(self); 545 struct ieee80211com *ic = &sc->sc_ic; 546 547 RSU_LOCK(sc); 548 rsu_stop(sc); 549 RSU_UNLOCK(sc); 550 551 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 552 553 /* 554 * Free buffers /before/ we detach from net80211, else node 555 * references to destroyed vaps will lead to a panic. 556 */ 557 /* Free Tx/Rx buffers. */ 558 RSU_LOCK(sc); 559 rsu_free_tx_list(sc); 560 rsu_free_rx_list(sc); 561 RSU_UNLOCK(sc); 562 563 /* Frames are freed; detach from net80211 */ 564 ieee80211_ifdetach(ic); 565 566 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 567 taskqueue_drain(taskqueue_thread, &sc->tx_task); 568 569 mtx_destroy(&sc->sc_mtx); 570 571 return (0); 572} 573 574static usb_error_t 575rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 576 void *data) 577{ 578 usb_error_t err; 579 int ntries = 10; 580 581 RSU_ASSERT_LOCKED(sc); 582 583 while (ntries--) { 584 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 585 req, data, 0, NULL, 250 /* ms */); 586 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 587 break; 588 DPRINTFN(1, "Control request failed, %s (retrying)\n", 589 usbd_errstr(err)); 590 rsu_ms_delay(sc, 10); 591 } 592 593 return (err); 594} 595 596static struct ieee80211vap * 597rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 598 enum ieee80211_opmode opmode, int flags, 599 const uint8_t bssid[IEEE80211_ADDR_LEN], 600 const uint8_t mac[IEEE80211_ADDR_LEN]) 601{ 602 struct rsu_vap *uvp; 603 struct ieee80211vap *vap; 604 605 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 606 return (NULL); 607 608 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 609 vap = &uvp->vap; 610 611 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 612 flags, bssid) != 0) { 613 /* out of memory */ 614 free(uvp, M_80211_VAP); 615 return (NULL); 616 } 617 618 /* override state transition machine */ 619 uvp->newstate = vap->iv_newstate; 620 vap->iv_newstate = rsu_newstate; 621 622 /* Limits from the r92su driver */ 623 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 624 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 625 626 /* complete setup */ 627 ieee80211_vap_attach(vap, ieee80211_media_change, 628 ieee80211_media_status, mac); 629 ic->ic_opmode = opmode; 630 631 return (vap); 632} 633 634static void 635rsu_vap_delete(struct ieee80211vap *vap) 636{ 637 struct rsu_vap *uvp = RSU_VAP(vap); 638 639 ieee80211_vap_detach(vap); 640 free(uvp, M_80211_VAP); 641} 642 643static void 644rsu_scan_start(struct ieee80211com *ic) 645{ 646 struct rsu_softc *sc = ic->ic_softc; 647 int error; 648 649 /* Scanning is done by the firmware. */ 650 RSU_LOCK(sc); 651 /* XXX TODO: force awake if in in network-sleep? */ 652 error = rsu_site_survey(sc, TAILQ_FIRST(&ic->ic_vaps)); 653 RSU_UNLOCK(sc); 654 if (error != 0) 655 device_printf(sc->sc_dev, 656 "could not send site survey command\n"); 657} 658 659static void 660rsu_scan_end(struct ieee80211com *ic) 661{ 662 /* Nothing to do here. */ 663} 664 665static void 666rsu_set_channel(struct ieee80211com *ic __unused) 667{ 668 /* We are unable to switch channels, yet. */ 669} 670 671static void 672rsu_update_mcast(struct ieee80211com *ic) 673{ 674 /* XXX do nothing? */ 675} 676 677static int 678rsu_alloc_list(struct rsu_softc *sc, struct rsu_data data[], 679 int ndata, int maxsz) 680{ 681 int i, error; 682 683 for (i = 0; i < ndata; i++) { 684 struct rsu_data *dp = &data[i]; 685 dp->sc = sc; 686 dp->m = NULL; 687 dp->buf = malloc(maxsz, M_USBDEV, M_NOWAIT); 688 if (dp->buf == NULL) { 689 device_printf(sc->sc_dev, 690 "could not allocate buffer\n"); 691 error = ENOMEM; 692 goto fail; 693 } 694 dp->ni = NULL; 695 } 696 697 return (0); 698fail: 699 rsu_free_list(sc, data, ndata); 700 return (error); 701} 702 703static int 704rsu_alloc_rx_list(struct rsu_softc *sc) 705{ 706 int error, i; 707 708 error = rsu_alloc_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT, 709 RSU_RXBUFSZ); 710 if (error != 0) 711 return (error); 712 713 STAILQ_INIT(&sc->sc_rx_active); 714 STAILQ_INIT(&sc->sc_rx_inactive); 715 716 for (i = 0; i < RSU_RX_LIST_COUNT; i++) 717 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i], next); 718 719 return (0); 720} 721 722static int 723rsu_alloc_tx_list(struct rsu_softc *sc) 724{ 725 int error, i; 726 727 error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT, 728 RSU_TXBUFSZ); 729 if (error != 0) 730 return (error); 731 732 STAILQ_INIT(&sc->sc_tx_inactive); 733 734 for (i = 0; i != RSU_N_TRANSFER; i++) { 735 STAILQ_INIT(&sc->sc_tx_active[i]); 736 STAILQ_INIT(&sc->sc_tx_pending[i]); 737 } 738 739 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 740 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i], next); 741 } 742 743 return (0); 744} 745 746static void 747rsu_free_tx_list(struct rsu_softc *sc) 748{ 749 int i; 750 751 /* prevent further allocations from TX list(s) */ 752 STAILQ_INIT(&sc->sc_tx_inactive); 753 754 for (i = 0; i != RSU_N_TRANSFER; i++) { 755 STAILQ_INIT(&sc->sc_tx_active[i]); 756 STAILQ_INIT(&sc->sc_tx_pending[i]); 757 } 758 759 rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT); 760} 761 762static void 763rsu_free_rx_list(struct rsu_softc *sc) 764{ 765 /* prevent further allocations from RX list(s) */ 766 STAILQ_INIT(&sc->sc_rx_inactive); 767 STAILQ_INIT(&sc->sc_rx_active); 768 769 rsu_free_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT); 770} 771 772static void 773rsu_free_list(struct rsu_softc *sc, struct rsu_data data[], int ndata) 774{ 775 int i; 776 777 for (i = 0; i < ndata; i++) { 778 struct rsu_data *dp = &data[i]; 779 780 if (dp->buf != NULL) { 781 free(dp->buf, M_USBDEV); 782 dp->buf = NULL; 783 } 784 if (dp->ni != NULL) { 785 ieee80211_free_node(dp->ni); 786 dp->ni = NULL; 787 } 788 } 789} 790 791static struct rsu_data * 792_rsu_getbuf(struct rsu_softc *sc) 793{ 794 struct rsu_data *bf; 795 796 bf = STAILQ_FIRST(&sc->sc_tx_inactive); 797 if (bf != NULL) 798 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next); 799 else 800 bf = NULL; 801 return (bf); 802} 803 804static struct rsu_data * 805rsu_getbuf(struct rsu_softc *sc) 806{ 807 struct rsu_data *bf; 808 809 RSU_ASSERT_LOCKED(sc); 810 811 bf = _rsu_getbuf(sc); 812 if (bf == NULL) { 813 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: no buffers\n", __func__); 814 } 815 return (bf); 816} 817 818static void 819rsu_freebuf(struct rsu_softc *sc, struct rsu_data *bf) 820{ 821 822 RSU_ASSERT_LOCKED(sc); 823 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, bf, next); 824} 825 826static int 827rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 828 int len) 829{ 830 usb_device_request_t req; 831 832 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 833 req.bRequest = R92S_REQ_REGS; 834 USETW(req.wValue, addr); 835 USETW(req.wIndex, 0); 836 USETW(req.wLength, len); 837 838 return (rsu_do_request(sc, &req, buf)); 839} 840 841static void 842rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 843{ 844 rsu_write_region_1(sc, addr, &val, 1); 845} 846 847static void 848rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 849{ 850 val = htole16(val); 851 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 852} 853 854static void 855rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 856{ 857 val = htole32(val); 858 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 859} 860 861static int 862rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 863 int len) 864{ 865 usb_device_request_t req; 866 867 req.bmRequestType = UT_READ_VENDOR_DEVICE; 868 req.bRequest = R92S_REQ_REGS; 869 USETW(req.wValue, addr); 870 USETW(req.wIndex, 0); 871 USETW(req.wLength, len); 872 873 return (rsu_do_request(sc, &req, buf)); 874} 875 876static uint8_t 877rsu_read_1(struct rsu_softc *sc, uint16_t addr) 878{ 879 uint8_t val; 880 881 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 882 return (0xff); 883 return (val); 884} 885 886static uint16_t 887rsu_read_2(struct rsu_softc *sc, uint16_t addr) 888{ 889 uint16_t val; 890 891 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 892 return (0xffff); 893 return (le16toh(val)); 894} 895 896static uint32_t 897rsu_read_4(struct rsu_softc *sc, uint16_t addr) 898{ 899 uint32_t val; 900 901 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 902 return (0xffffffff); 903 return (le32toh(val)); 904} 905 906static int 907rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 908{ 909 int ntries; 910 911 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 912 rsu_ms_delay(sc, 1); 913 for (ntries = 0; ntries < 50; ntries++) { 914 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 915 return (0); 916 rsu_ms_delay(sc, 1); 917 } 918 return (ETIMEDOUT); 919} 920 921static uint8_t 922rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 923{ 924 uint32_t reg; 925 int ntries; 926 927 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 928 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 929 reg &= ~R92S_EFUSE_CTRL_VALID; 930 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 931 /* Wait for read operation to complete. */ 932 for (ntries = 0; ntries < 100; ntries++) { 933 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 934 if (reg & R92S_EFUSE_CTRL_VALID) 935 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 936 rsu_ms_delay(sc, 1); 937 } 938 device_printf(sc->sc_dev, 939 "could not read efuse byte at address 0x%x\n", addr); 940 return (0xff); 941} 942 943static int 944rsu_read_rom(struct rsu_softc *sc) 945{ 946 uint8_t *rom = sc->rom; 947 uint16_t addr = 0; 948 uint32_t reg; 949 uint8_t off, msk; 950 int i; 951 952 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 953 reg = rsu_read_1(sc, R92S_EE_9346CR); 954 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 955 return (EIO); 956 957 /* Turn on 2.5V to prevent eFuse leakage. */ 958 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 959 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 960 rsu_ms_delay(sc, 1); 961 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 962 963 /* Read full ROM image. */ 964 memset(&sc->rom, 0xff, sizeof(sc->rom)); 965 while (addr < 512) { 966 reg = rsu_efuse_read_1(sc, addr); 967 if (reg == 0xff) 968 break; 969 addr++; 970 off = reg >> 4; 971 msk = reg & 0xf; 972 for (i = 0; i < 4; i++) { 973 if (msk & (1 << i)) 974 continue; 975 rom[off * 8 + i * 2 + 0] = 976 rsu_efuse_read_1(sc, addr); 977 addr++; 978 rom[off * 8 + i * 2 + 1] = 979 rsu_efuse_read_1(sc, addr); 980 addr++; 981 } 982 } 983#ifdef USB_DEBUG 984 if (rsu_debug >= 5) { 985 /* Dump ROM content. */ 986 printf("\n"); 987 for (i = 0; i < sizeof(sc->rom); i++) 988 printf("%02x:", rom[i]); 989 printf("\n"); 990 } 991#endif 992 return (0); 993} 994 995static int 996rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 997{ 998 const uint8_t which = RSU_H2C_ENDPOINT; 999 struct rsu_data *data; 1000 struct r92s_tx_desc *txd; 1001 struct r92s_fw_cmd_hdr *cmd; 1002 int cmdsz; 1003 int xferlen; 1004 1005 RSU_ASSERT_LOCKED(sc); 1006 1007 data = rsu_getbuf(sc); 1008 if (data == NULL) 1009 return (ENOMEM); 1010 1011 /* Blank the entire payload, just to be safe */ 1012 memset(data->buf, '\0', RSU_TXBUFSZ); 1013 1014 /* Round-up command length to a multiple of 8 bytes. */ 1015 /* XXX TODO: is this required? */ 1016 cmdsz = (len + 7) & ~7; 1017 1018 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 1019 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 1020 memset(data->buf, 0, xferlen); 1021 1022 /* Setup Tx descriptor. */ 1023 txd = (struct r92s_tx_desc *)data->buf; 1024 txd->txdw0 = htole32( 1025 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1026 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 1027 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1028 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 1029 1030 /* Setup command header. */ 1031 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 1032 cmd->len = htole16(cmdsz); 1033 cmd->code = code; 1034 cmd->seq = sc->cmd_seq; 1035 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 1036 1037 /* Copy command payload. */ 1038 memcpy(&cmd[1], buf, len); 1039 1040 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FWCMD, 1041 "%s: Tx cmd code=0x%x len=0x%x\n", 1042 __func__, code, cmdsz); 1043 data->buflen = xferlen; 1044 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 1045 usbd_transfer_start(sc->sc_xfer[which]); 1046 1047 return (0); 1048} 1049 1050/* ARGSUSED */ 1051static void 1052rsu_calib_task(void *arg, int pending __unused) 1053{ 1054 struct rsu_softc *sc = arg; 1055 uint32_t reg; 1056 1057 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: running calibration task\n", 1058 __func__); 1059 1060 RSU_LOCK(sc); 1061#ifdef notyet 1062 /* Read WPS PBC status. */ 1063 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 1064 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 1065 rsu_write_1(sc, R92S_GPIO_IO_SEL, 1066 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 1067 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 1068 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 1069 DPRINTF(("WPS PBC is pushed\n")); 1070#endif 1071 /* Read current signal level. */ 1072 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 1073 reg = rsu_read_4(sc, R92S_IOCMD_DATA); 1074 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: RSSI=%d%%\n", 1075 __func__, reg >> 4); 1076 } 1077 if (sc->sc_calibrating) 1078 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1079 RSU_UNLOCK(sc); 1080} 1081 1082static void 1083rsu_tx_task(void *arg, int pending __unused) 1084{ 1085 struct rsu_softc *sc = arg; 1086 1087 RSU_LOCK(sc); 1088 _rsu_start(sc); 1089 RSU_UNLOCK(sc); 1090} 1091 1092#define RSU_PWR_UNKNOWN 0x0 1093#define RSU_PWR_ACTIVE 0x1 1094#define RSU_PWR_OFF 0x2 1095#define RSU_PWR_SLEEP 0x3 1096 1097/* 1098 * Set the current power state. 1099 * 1100 * The rtlwifi code doesn't do this so aggressively; it 1101 * waits for an idle period after association with 1102 * no traffic before doing this. 1103 * 1104 * For now - it's on in all states except RUN, and 1105 * in RUN it'll transition to allow sleep. 1106 */ 1107 1108struct r92s_pwr_cmd { 1109 uint8_t mode; 1110 uint8_t smart_ps; 1111 uint8_t bcn_pass_time; 1112}; 1113 1114static int 1115rsu_set_fw_power_state(struct rsu_softc *sc, int state) 1116{ 1117 struct r92s_set_pwr_mode cmd; 1118 //struct r92s_pwr_cmd cmd; 1119 int error; 1120 1121 RSU_ASSERT_LOCKED(sc); 1122 1123 /* only change state if required */ 1124 if (sc->sc_curpwrstate == state) 1125 return (0); 1126 1127 memset(&cmd, 0, sizeof(cmd)); 1128 1129 switch (state) { 1130 case RSU_PWR_ACTIVE: 1131 /* Force the hardware awake */ 1132 rsu_write_1(sc, R92S_USB_HRPWM, 1133 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 1134 cmd.mode = R92S_PS_MODE_ACTIVE; 1135 break; 1136 case RSU_PWR_SLEEP: 1137 cmd.mode = R92S_PS_MODE_DTIM; /* XXX configurable? */ 1138 cmd.smart_ps = 1; /* XXX 2 if doing p2p */ 1139 cmd.bcn_pass_time = 5; /* in 100mS usb.c, linux/rtlwifi */ 1140 break; 1141 case RSU_PWR_OFF: 1142 cmd.mode = R92S_PS_MODE_RADIOOFF; 1143 break; 1144 default: 1145 device_printf(sc->sc_dev, "%s: unknown ps mode (%d)\n", 1146 __func__, 1147 state); 1148 return (ENXIO); 1149 } 1150 1151 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1152 "%s: setting ps mode to %d (mode %d)\n", 1153 __func__, state, cmd.mode); 1154 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 1155 if (error == 0) 1156 sc->sc_curpwrstate = state; 1157 1158 return (error); 1159} 1160 1161static int 1162rsu_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1163{ 1164 struct rsu_vap *uvp = RSU_VAP(vap); 1165 struct ieee80211com *ic = vap->iv_ic; 1166 struct rsu_softc *sc = ic->ic_softc; 1167 struct ieee80211_node *ni; 1168 struct ieee80211_rateset *rs; 1169 enum ieee80211_state ostate; 1170 int error, startcal = 0; 1171 1172 ostate = vap->iv_state; 1173 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: %s -> %s\n", 1174 __func__, 1175 ieee80211_state_name[ostate], 1176 ieee80211_state_name[nstate]); 1177 1178 IEEE80211_UNLOCK(ic); 1179 if (ostate == IEEE80211_S_RUN) { 1180 RSU_LOCK(sc); 1181 /* Stop calibration. */ 1182 sc->sc_calibrating = 0; 1183 RSU_UNLOCK(sc); 1184 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 1185 taskqueue_drain(taskqueue_thread, &sc->tx_task); 1186 /* Disassociate from our current BSS. */ 1187 RSU_LOCK(sc); 1188 rsu_disconnect(sc); 1189 } else 1190 RSU_LOCK(sc); 1191 switch (nstate) { 1192 case IEEE80211_S_INIT: 1193 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1194 break; 1195 case IEEE80211_S_AUTH: 1196 ni = ieee80211_ref_node(vap->iv_bss); 1197 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1198 error = rsu_join_bss(sc, ni); 1199 ieee80211_free_node(ni); 1200 if (error != 0) { 1201 device_printf(sc->sc_dev, 1202 "could not send join command\n"); 1203 } 1204 break; 1205 case IEEE80211_S_RUN: 1206 ni = ieee80211_ref_node(vap->iv_bss); 1207 rs = &ni->ni_rates; 1208 /* Indicate highest supported rate. */ 1209 ni->ni_txrate = rs->rs_rates[rs->rs_nrates - 1]; 1210 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1211 ieee80211_free_node(ni); 1212 startcal = 1; 1213 break; 1214 default: 1215 break; 1216 } 1217 sc->sc_calibrating = 1; 1218 /* Start periodic calibration. */ 1219 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1220 RSU_UNLOCK(sc); 1221 IEEE80211_LOCK(ic); 1222 return (uvp->newstate(vap, nstate, arg)); 1223} 1224 1225#ifdef notyet 1226static void 1227rsu_set_key(struct rsu_softc *sc, const struct ieee80211_key *k) 1228{ 1229 struct r92s_fw_cmd_set_key key; 1230 1231 memset(&key, 0, sizeof(key)); 1232 /* Map net80211 cipher to HW crypto algorithm. */ 1233 switch (k->wk_cipher->ic_cipher) { 1234 case IEEE80211_CIPHER_WEP: 1235 if (k->wk_keylen < 8) 1236 key.algo = R92S_KEY_ALGO_WEP40; 1237 else 1238 key.algo = R92S_KEY_ALGO_WEP104; 1239 break; 1240 case IEEE80211_CIPHER_TKIP: 1241 key.algo = R92S_KEY_ALGO_TKIP; 1242 break; 1243 case IEEE80211_CIPHER_AES_CCM: 1244 key.algo = R92S_KEY_ALGO_AES; 1245 break; 1246 default: 1247 return; 1248 } 1249 key.id = k->wk_keyix; 1250 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1251 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1252 (void)rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1253} 1254 1255static void 1256rsu_delete_key(struct rsu_softc *sc, const struct ieee80211_key *k) 1257{ 1258 struct r92s_fw_cmd_set_key key; 1259 1260 memset(&key, 0, sizeof(key)); 1261 key.id = k->wk_keyix; 1262 (void)rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1263} 1264#endif 1265 1266static int 1267rsu_site_survey(struct rsu_softc *sc, struct ieee80211vap *vap) 1268{ 1269 struct r92s_fw_cmd_sitesurvey cmd; 1270 struct ieee80211com *ic = &sc->sc_ic; 1271 int r; 1272 1273 RSU_ASSERT_LOCKED(sc); 1274 1275 memset(&cmd, 0, sizeof(cmd)); 1276 if ((ic->ic_flags & IEEE80211_F_ASCAN) || sc->sc_scan_pass == 1) 1277 cmd.active = htole32(1); 1278 cmd.limit = htole32(48); 1279 if (sc->sc_scan_pass == 1 && vap->iv_des_nssid > 0) { 1280 /* Do a directed scan for second pass. */ 1281 cmd.ssidlen = htole32(vap->iv_des_ssid[0].len); 1282 memcpy(cmd.ssid, vap->iv_des_ssid[0].ssid, 1283 vap->iv_des_ssid[0].len); 1284 1285 } 1286 DPRINTF("sending site survey command, pass=%d\n", sc->sc_scan_pass); 1287 r = rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd)); 1288 if (r == 0) { 1289 sc->sc_scanning = 1; 1290 } 1291 return (r); 1292} 1293 1294static int 1295rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1296{ 1297 struct ieee80211com *ic = &sc->sc_ic; 1298 struct ieee80211vap *vap = ni->ni_vap; 1299 struct ndis_wlan_bssid_ex *bss; 1300 struct ndis_802_11_fixed_ies *fixed; 1301 struct r92s_fw_cmd_auth auth; 1302 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1303 uint8_t *frm; 1304 uint8_t opmode; 1305 int error; 1306 int cnt; 1307 char *msg = "rsujoin"; 1308 1309 RSU_ASSERT_LOCKED(sc); 1310 1311 /* 1312 * Until net80211 scanning doesn't automatically finish 1313 * before we tell it to, let's just wait until any pending 1314 * scan is done. 1315 * 1316 * XXX TODO: yes, this releases and re-acquires the lock. 1317 * We should re-verify the state whenever we re-attempt this! 1318 */ 1319 cnt = 0; 1320 while (sc->sc_scanning && cnt < 10) { 1321 device_printf(sc->sc_dev, 1322 "%s: still scanning! (attempt %d)\n", 1323 __func__, cnt); 1324 msleep(msg, &sc->sc_mtx, 0, msg, hz / 2); 1325 cnt++; 1326 } 1327 1328 /* Let the FW decide the opmode based on the capinfo field. */ 1329 opmode = NDIS802_11AUTOUNKNOWN; 1330 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1331 "%s: setting operating mode to %d\n", 1332 __func__, opmode); 1333 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1334 if (error != 0) 1335 return (error); 1336 1337 memset(&auth, 0, sizeof(auth)); 1338 if (vap->iv_flags & IEEE80211_F_WPA) { 1339 auth.mode = R92S_AUTHMODE_WPA; 1340 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1341 } else 1342 auth.mode = R92S_AUTHMODE_OPEN; 1343 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1344 "%s: setting auth mode to %d\n", 1345 __func__, auth.mode); 1346 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1347 if (error != 0) 1348 return (error); 1349 1350 memset(buf, 0, sizeof(buf)); 1351 bss = (struct ndis_wlan_bssid_ex *)buf; 1352 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1353 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1354 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1355 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1356 bss->privacy = htole32(1); 1357 bss->rssi = htole32(ni->ni_avgrssi); 1358 if (ic->ic_curmode == IEEE80211_MODE_11B) 1359 bss->networktype = htole32(NDIS802_11DS); 1360 else 1361 bss->networktype = htole32(NDIS802_11OFDM24); 1362 bss->config.len = htole32(sizeof(bss->config)); 1363 bss->config.bintval = htole32(ni->ni_intval); 1364 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1365 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1366 /* XXX verify how this is supposed to look! */ 1367 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1368 ni->ni_rates.rs_nrates); 1369 /* Write the fixed fields of the beacon frame. */ 1370 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1371 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1372 fixed->bintval = htole16(ni->ni_intval); 1373 fixed->capabilities = htole16(ni->ni_capinfo); 1374 /* Write IEs to be included in the association request. */ 1375 frm = (uint8_t *)&fixed[1]; 1376 frm = ieee80211_add_rsn(frm, vap); 1377 frm = ieee80211_add_wpa(frm, vap); 1378 frm = ieee80211_add_qos(frm, ni); 1379 if ((ic->ic_flags & IEEE80211_F_WME) && 1380 (ni->ni_ies.wme_ie != NULL)) 1381 frm = ieee80211_add_wme_info(frm, &ic->ic_wme); 1382 if (ni->ni_flags & IEEE80211_NODE_HT) { 1383 frm = ieee80211_add_htcap(frm, ni); 1384 frm = ieee80211_add_htinfo(frm, ni); 1385 } 1386 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1387 bss->len = htole32(((frm - buf) + 3) & ~3); 1388 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 1389 "%s: sending join bss command to %s chan %d\n", 1390 __func__, 1391 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 1392 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 1393} 1394 1395static int 1396rsu_disconnect(struct rsu_softc *sc) 1397{ 1398 uint32_t zero = 0; /* :-) */ 1399 1400 /* Disassociate from our current BSS. */ 1401 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 1402 "%s: sending disconnect command\n", __func__); 1403 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 1404} 1405 1406static void 1407rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 1408{ 1409 struct ieee80211com *ic = &sc->sc_ic; 1410 struct ieee80211_frame *wh; 1411 struct ndis_wlan_bssid_ex *bss; 1412 struct ieee80211_rx_stats rxs; 1413 struct mbuf *m; 1414 int pktlen; 1415 1416 if (__predict_false(len < sizeof(*bss))) 1417 return; 1418 bss = (struct ndis_wlan_bssid_ex *)buf; 1419 if (__predict_false(len < sizeof(*bss) + le32toh(bss->ieslen))) 1420 return; 1421 1422 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 1423 "%s: found BSS %s: len=%d chan=%d inframode=%d " 1424 "networktype=%d privacy=%d, RSSI=%d\n", 1425 __func__, 1426 ether_sprintf(bss->macaddr), le32toh(bss->len), 1427 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 1428 le32toh(bss->networktype), le32toh(bss->privacy), 1429 le32toh(bss->rssi)); 1430 1431 /* Build a fake beacon frame to let net80211 do all the parsing. */ 1432 /* XXX TODO: just call the new scan API methods! */ 1433 pktlen = sizeof(*wh) + le32toh(bss->ieslen); 1434 if (__predict_false(pktlen > MCLBYTES)) 1435 return; 1436 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 1437 if (__predict_false(m == NULL)) 1438 return; 1439 wh = mtod(m, struct ieee80211_frame *); 1440 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 1441 IEEE80211_FC0_SUBTYPE_BEACON; 1442 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 1443 USETW(wh->i_dur, 0); 1444 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 1445 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 1446 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 1447 *(uint16_t *)wh->i_seq = 0; 1448 memcpy(&wh[1], (uint8_t *)&bss[1], le32toh(bss->ieslen)); 1449 1450 /* Finalize mbuf. */ 1451 m->m_pkthdr.len = m->m_len = pktlen; 1452 1453 /* Set channel flags for input path */ 1454 bzero(&rxs, sizeof(rxs)); 1455 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 1456 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 1457 rxs.c_ieee = le32toh(bss->config.dsconfig); 1458 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 1459 rxs.rssi = le32toh(bss->rssi); 1460 rxs.nf = 0; /* XXX */ 1461 1462 /* XXX avoid a LOR */ 1463 RSU_UNLOCK(sc); 1464 ieee80211_input_mimo_all(ic, m, &rxs); 1465 RSU_LOCK(sc); 1466} 1467 1468static void 1469rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 1470{ 1471 struct ieee80211com *ic = &sc->sc_ic; 1472 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1473 struct ieee80211_node *ni = vap->iv_bss; 1474 struct r92s_event_join_bss *rsp; 1475 uint32_t tmp; 1476 int res; 1477 1478 if (__predict_false(len < sizeof(*rsp))) 1479 return; 1480 rsp = (struct r92s_event_join_bss *)buf; 1481 res = (int)le32toh(rsp->join_res); 1482 1483 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 1484 "%s: Rx join BSS event len=%d res=%d\n", 1485 __func__, len, res); 1486 1487 /* 1488 * XXX Don't do this; there's likely a better way to tell 1489 * the caller we failed. 1490 */ 1491 if (res <= 0) { 1492 RSU_UNLOCK(sc); 1493 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1494 RSU_LOCK(sc); 1495 return; 1496 } 1497 1498 tmp = le32toh(rsp->associd); 1499 if (tmp >= vap->iv_max_aid) { 1500 DPRINTF("Assoc ID overflow\n"); 1501 tmp = 1; 1502 } 1503 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 1504 "%s: associated with %s associd=%d\n", 1505 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 1506 /* XXX is this required? What's the top two bits for again? */ 1507 ni->ni_associd = tmp | 0xc000; 1508 RSU_UNLOCK(sc); 1509 ieee80211_new_state(vap, IEEE80211_S_RUN, 1510 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 1511 RSU_LOCK(sc); 1512} 1513 1514static void 1515rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 1516{ 1517 struct ieee80211com *ic = &sc->sc_ic; 1518 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1519 struct r92s_add_ba_event *ba = (void *) buf; 1520 struct ieee80211_node *ni; 1521 1522 if (len < sizeof(*ba)) { 1523 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 1524 return; 1525 } 1526 1527 if (vap == NULL) 1528 return; 1529 1530 device_printf(sc->sc_dev, "%s: mac=%s, tid=%d, ssn=%d\n", 1531 __func__, 1532 ether_sprintf(ba->mac_addr), 1533 (int) ba->tid, 1534 (int) le16toh(ba->ssn)); 1535 1536 /* XXX do node lookup; this is STA specific */ 1537 1538 ni = ieee80211_ref_node(vap->iv_bss); 1539 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 1540 ieee80211_free_node(ni); 1541} 1542 1543static void 1544rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 1545{ 1546 struct ieee80211com *ic = &sc->sc_ic; 1547 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1548 1549 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 1550 "%s: Rx event code=%d len=%d\n", __func__, code, len); 1551 switch (code) { 1552 case R92S_EVT_SURVEY: 1553 rsu_event_survey(sc, buf, len); 1554 break; 1555 case R92S_EVT_SURVEY_DONE: 1556 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 1557 "%s: site survey pass %d done, found %d BSS\n", 1558 __func__, sc->sc_scan_pass, le32toh(*(uint32_t *)buf)); 1559 sc->sc_scanning = 0; 1560 if (vap->iv_state != IEEE80211_S_SCAN) 1561 break; /* Ignore if not scanning. */ 1562 1563 /* 1564 * XXX TODO: This needs to be done without a transition to 1565 * the SCAN state again. Grr. 1566 */ 1567 if (sc->sc_scan_pass == 0 && vap->iv_des_nssid != 0) { 1568 /* Schedule a directed scan for hidden APs. */ 1569 /* XXX bad! */ 1570 sc->sc_scan_pass = 1; 1571 RSU_UNLOCK(sc); 1572 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1573 RSU_LOCK(sc); 1574 break; 1575 } 1576 sc->sc_scan_pass = 0; 1577 break; 1578 case R92S_EVT_JOIN_BSS: 1579 if (vap->iv_state == IEEE80211_S_AUTH) 1580 rsu_event_join_bss(sc, buf, len); 1581 break; 1582 case R92S_EVT_DEL_STA: 1583 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 1584 "%s: disassociated from %s\n", __func__, 1585 ether_sprintf(buf)); 1586 if (vap->iv_state == IEEE80211_S_RUN && 1587 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 1588 RSU_UNLOCK(sc); 1589 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1590 RSU_LOCK(sc); 1591 } 1592 break; 1593 case R92S_EVT_WPS_PBC: 1594 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 1595 "%s: WPS PBC pushed.\n", __func__); 1596 break; 1597 case R92S_EVT_FWDBG: 1598 buf[60] = '\0'; 1599 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 1600 break; 1601 case R92S_EVT_ADDBA_REQ_REPORT: 1602 rsu_event_addba_req_report(sc, buf, len); 1603 break; 1604 default: 1605 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 1606 break; 1607 } 1608} 1609 1610static void 1611rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 1612{ 1613 struct r92s_fw_cmd_hdr *cmd; 1614 int cmdsz; 1615 1616 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 1617 1618 /* Skip Rx status. */ 1619 buf += sizeof(struct r92s_rx_stat); 1620 len -= sizeof(struct r92s_rx_stat); 1621 1622 /* Process all events. */ 1623 for (;;) { 1624 /* Check that command header fits. */ 1625 if (__predict_false(len < sizeof(*cmd))) 1626 break; 1627 cmd = (struct r92s_fw_cmd_hdr *)buf; 1628 /* Check that command payload fits. */ 1629 cmdsz = le16toh(cmd->len); 1630 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 1631 break; 1632 1633 /* Process firmware event. */ 1634 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 1635 1636 if (!(cmd->seq & R92S_FW_CMD_MORE)) 1637 break; 1638 buf += sizeof(*cmd) + cmdsz; 1639 len -= sizeof(*cmd) + cmdsz; 1640 } 1641} 1642 1643static int8_t 1644rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 1645{ 1646 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 1647 struct r92s_rx_phystat *phy; 1648 struct r92s_rx_cck *cck; 1649 uint8_t rpt; 1650 int8_t rssi; 1651 1652 if (rate <= 3) { 1653 cck = (struct r92s_rx_cck *)physt; 1654 rpt = (cck->agc_rpt >> 6) & 0x3; 1655 rssi = cck->agc_rpt & 0x3e; 1656 rssi = cckoff[rpt] - rssi; 1657 } else { /* OFDM/HT. */ 1658 phy = (struct r92s_rx_phystat *)physt; 1659 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 1660 } 1661 return (rssi); 1662} 1663 1664static struct mbuf * 1665rsu_rx_frame(struct rsu_softc *sc, uint8_t *buf, int pktlen, int *rssi) 1666{ 1667 struct ieee80211com *ic = &sc->sc_ic; 1668 struct ieee80211_frame *wh; 1669 struct r92s_rx_stat *stat; 1670 uint32_t rxdw0, rxdw3; 1671 struct mbuf *m; 1672 uint8_t rate; 1673 int infosz; 1674 1675 stat = (struct r92s_rx_stat *)buf; 1676 rxdw0 = le32toh(stat->rxdw0); 1677 rxdw3 = le32toh(stat->rxdw3); 1678 1679 if (__predict_false(rxdw0 & R92S_RXDW0_CRCERR)) { 1680 counter_u64_add(ic->ic_ierrors, 1); 1681 return NULL; 1682 } 1683 if (__predict_false(pktlen < sizeof(*wh) || pktlen > MCLBYTES)) { 1684 counter_u64_add(ic->ic_ierrors, 1); 1685 return NULL; 1686 } 1687 1688 rate = MS(rxdw3, R92S_RXDW3_RATE); 1689 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 1690 1691 /* Get RSSI from PHY status descriptor if present. */ 1692 if (infosz != 0) 1693 *rssi = rsu_get_rssi(sc, rate, &stat[1]); 1694 else 1695 *rssi = 0; 1696 1697 RSU_DPRINTF(sc, RSU_DEBUG_RX, 1698 "%s: Rx frame len=%d rate=%d infosz=%d rssi=%d\n", 1699 __func__, 1700 pktlen, rate, infosz, *rssi); 1701 1702 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 1703 if (__predict_false(m == NULL)) { 1704 counter_u64_add(ic->ic_ierrors, 1); 1705 return NULL; 1706 } 1707 /* Hardware does Rx TCP checksum offload. */ 1708 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 1709 if (__predict_true(rxdw3 & R92S_RXDW3_TCPCHKRPT)) 1710 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 1711 } 1712 wh = (struct ieee80211_frame *)((uint8_t *)&stat[1] + infosz); 1713 memcpy(mtod(m, uint8_t *), wh, pktlen); 1714 m->m_pkthdr.len = m->m_len = pktlen; 1715 1716 if (ieee80211_radiotap_active(ic)) { 1717 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 1718 1719 /* Map HW rate index to 802.11 rate. */ 1720 tap->wr_flags = 2; 1721 if (!(rxdw3 & R92S_RXDW3_HTC)) { 1722 switch (rate) { 1723 /* CCK. */ 1724 case 0: tap->wr_rate = 2; break; 1725 case 1: tap->wr_rate = 4; break; 1726 case 2: tap->wr_rate = 11; break; 1727 case 3: tap->wr_rate = 22; break; 1728 /* OFDM. */ 1729 case 4: tap->wr_rate = 12; break; 1730 case 5: tap->wr_rate = 18; break; 1731 case 6: tap->wr_rate = 24; break; 1732 case 7: tap->wr_rate = 36; break; 1733 case 8: tap->wr_rate = 48; break; 1734 case 9: tap->wr_rate = 72; break; 1735 case 10: tap->wr_rate = 96; break; 1736 case 11: tap->wr_rate = 108; break; 1737 } 1738 } else if (rate >= 12) { /* MCS0~15. */ 1739 /* Bit 7 set means HT MCS instead of rate. */ 1740 tap->wr_rate = 0x80 | (rate - 12); 1741 } 1742 tap->wr_dbm_antsignal = *rssi; 1743 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 1744 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 1745 } 1746 1747 return (m); 1748} 1749 1750static struct mbuf * 1751rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len, int *rssi) 1752{ 1753 struct r92s_rx_stat *stat; 1754 uint32_t rxdw0; 1755 int totlen, pktlen, infosz, npkts; 1756 struct mbuf *m, *m0 = NULL, *prevm = NULL; 1757 1758 /* Get the number of encapsulated frames. */ 1759 stat = (struct r92s_rx_stat *)buf; 1760 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 1761 RSU_DPRINTF(sc, RSU_DEBUG_RX, 1762 "%s: Rx %d frames in one chunk\n", __func__, npkts); 1763 1764 /* Process all of them. */ 1765 while (npkts-- > 0) { 1766 if (__predict_false(len < sizeof(*stat))) 1767 break; 1768 stat = (struct r92s_rx_stat *)buf; 1769 rxdw0 = le32toh(stat->rxdw0); 1770 1771 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 1772 if (__predict_false(pktlen == 0)) 1773 break; 1774 1775 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 1776 1777 /* Make sure everything fits in xfer. */ 1778 totlen = sizeof(*stat) + infosz + pktlen; 1779 if (__predict_false(totlen > len)) 1780 break; 1781 1782 /* Process 802.11 frame. */ 1783 m = rsu_rx_frame(sc, buf, pktlen, rssi); 1784 if (m0 == NULL) 1785 m0 = m; 1786 if (prevm == NULL) 1787 prevm = m; 1788 else { 1789 prevm->m_next = m; 1790 prevm = m; 1791 } 1792 /* Next chunk is 128-byte aligned. */ 1793 totlen = (totlen + 127) & ~127; 1794 buf += totlen; 1795 len -= totlen; 1796 } 1797 1798 return (m0); 1799} 1800 1801static struct mbuf * 1802rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data, int *rssi) 1803{ 1804 struct rsu_softc *sc = data->sc; 1805 struct ieee80211com *ic = &sc->sc_ic; 1806 struct r92s_rx_stat *stat; 1807 int len; 1808 1809 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 1810 1811 if (__predict_false(len < sizeof(*stat))) { 1812 DPRINTF("xfer too short %d\n", len); 1813 counter_u64_add(ic->ic_ierrors, 1); 1814 return (NULL); 1815 } 1816 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 1817 stat = (struct r92s_rx_stat *)data->buf; 1818 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 1819 rsu_rx_multi_event(sc, data->buf, len); 1820 /* No packets to process. */ 1821 return (NULL); 1822 } else 1823 return (rsu_rx_multi_frame(sc, data->buf, len, rssi)); 1824} 1825 1826static void 1827rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 1828{ 1829 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1830 struct ieee80211com *ic = &sc->sc_ic; 1831 struct ieee80211_frame *wh; 1832 struct ieee80211_node *ni; 1833 struct mbuf *m = NULL, *next; 1834 struct rsu_data *data; 1835 int rssi = 1; 1836 1837 RSU_ASSERT_LOCKED(sc); 1838 1839 switch (USB_GET_STATE(xfer)) { 1840 case USB_ST_TRANSFERRED: 1841 data = STAILQ_FIRST(&sc->sc_rx_active); 1842 if (data == NULL) 1843 goto tr_setup; 1844 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 1845 m = rsu_rxeof(xfer, data, &rssi); 1846 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 1847 /* FALLTHROUGH */ 1848 case USB_ST_SETUP: 1849tr_setup: 1850 /* 1851 * XXX TODO: if we have an mbuf list, but then 1852 * we hit data == NULL, what now? 1853 */ 1854 data = STAILQ_FIRST(&sc->sc_rx_inactive); 1855 if (data == NULL) { 1856 KASSERT(m == NULL, ("mbuf isn't NULL")); 1857 return; 1858 } 1859 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 1860 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 1861 usbd_xfer_set_frame_data(xfer, 0, data->buf, 1862 usbd_xfer_max_len(xfer)); 1863 usbd_transfer_submit(xfer); 1864 /* 1865 * To avoid LOR we should unlock our private mutex here to call 1866 * ieee80211_input() because here is at the end of a USB 1867 * callback and safe to unlock. 1868 */ 1869 RSU_UNLOCK(sc); 1870 while (m != NULL) { 1871 next = m->m_next; 1872 m->m_next = NULL; 1873 wh = mtod(m, struct ieee80211_frame *); 1874 ni = ieee80211_find_rxnode(ic, 1875 (struct ieee80211_frame_min *)wh); 1876 if (ni != NULL) { 1877 if (ni->ni_flags & IEEE80211_NODE_HT) 1878 m->m_flags |= M_AMPDU; 1879 (void)ieee80211_input(ni, m, rssi, 0); 1880 ieee80211_free_node(ni); 1881 } else 1882 (void)ieee80211_input_all(ic, m, rssi, 0); 1883 m = next; 1884 } 1885 RSU_LOCK(sc); 1886 break; 1887 default: 1888 /* needs it to the inactive queue due to a error. */ 1889 data = STAILQ_FIRST(&sc->sc_rx_active); 1890 if (data != NULL) { 1891 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 1892 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 1893 } 1894 if (error != USB_ERR_CANCELLED) { 1895 usbd_xfer_set_stall(xfer); 1896 counter_u64_add(ic->ic_ierrors, 1); 1897 goto tr_setup; 1898 } 1899 break; 1900 } 1901 1902} 1903 1904static void 1905rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 1906{ 1907#ifdef USB_DEBUG 1908 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1909#endif 1910 1911 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 1912 __func__, 1913 data); 1914 1915 if (data->m) { 1916 /* XXX status? */ 1917 ieee80211_tx_complete(data->ni, data->m, 0); 1918 data->m = NULL; 1919 data->ni = NULL; 1920 } 1921} 1922 1923static void 1924rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 1925 uint8_t which) 1926{ 1927 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1928 struct ieee80211com *ic = &sc->sc_ic; 1929 struct rsu_data *data; 1930 1931 RSU_ASSERT_LOCKED(sc); 1932 1933 switch (USB_GET_STATE(xfer)) { 1934 case USB_ST_TRANSFERRED: 1935 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 1936 if (data == NULL) 1937 goto tr_setup; 1938 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 1939 __func__, data); 1940 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 1941 rsu_txeof(xfer, data); 1942 rsu_freebuf(sc, data); 1943 /* FALLTHROUGH */ 1944 case USB_ST_SETUP: 1945tr_setup: 1946 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 1947 if (data == NULL) { 1948 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 1949 "%s: empty pending queue sc %p\n", __func__, sc); 1950 return; 1951 } 1952 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 1953 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 1954 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 1955 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 1956 "%s: submitting transfer %p\n", 1957 __func__, 1958 data); 1959 usbd_transfer_submit(xfer); 1960 break; 1961 default: 1962 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 1963 if (data != NULL) { 1964 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 1965 rsu_txeof(xfer, data); 1966 rsu_freebuf(sc, data); 1967 } 1968 counter_u64_add(ic->ic_oerrors, 1); 1969 1970 if (error != USB_ERR_CANCELLED) { 1971 usbd_xfer_set_stall(xfer); 1972 goto tr_setup; 1973 } 1974 break; 1975 } 1976} 1977 1978static void 1979rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 1980{ 1981 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1982 1983 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 1984 1985 /* This kicks the TX taskqueue */ 1986 rsu_start(sc); 1987} 1988 1989static void 1990rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 1991{ 1992 struct rsu_softc *sc = usbd_xfer_softc(xfer); 1993 1994 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 1995 1996 /* This kicks the TX taskqueue */ 1997 rsu_start(sc); 1998} 1999 2000static void 2001rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2002{ 2003 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2004 2005 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2006 2007 /* This kicks the TX taskqueue */ 2008 rsu_start(sc); 2009} 2010 2011/* 2012 * Transmit the given frame. 2013 * 2014 * This doesn't free the node or mbuf upon failure. 2015 */ 2016static int 2017rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2018 struct mbuf *m0, struct rsu_data *data) 2019{ 2020 struct ieee80211com *ic = &sc->sc_ic; 2021 struct ieee80211vap *vap = ni->ni_vap; 2022 struct ieee80211_frame *wh; 2023 struct ieee80211_key *k = NULL; 2024 struct r92s_tx_desc *txd; 2025 uint8_t type; 2026 int prio = 0; 2027 uint8_t which; 2028 int hasqos; 2029 int xferlen; 2030 int qid; 2031 2032 RSU_ASSERT_LOCKED(sc); 2033 2034 wh = mtod(m0, struct ieee80211_frame *); 2035 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2036 2037 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2038 __func__, data, m0); 2039 2040 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2041 k = ieee80211_crypto_encap(ni, m0); 2042 if (k == NULL) { 2043 device_printf(sc->sc_dev, 2044 "ieee80211_crypto_encap returns NULL.\n"); 2045 /* XXX we don't expect the fragmented frames */ 2046 return (ENOBUFS); 2047 } 2048 wh = mtod(m0, struct ieee80211_frame *); 2049 } 2050 /* If we have QoS then use it */ 2051 /* XXX TODO: mbuf WME/PRI versus TID? */ 2052 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2053 /* Has QoS */ 2054 prio = M_WME_GETAC(m0); 2055 which = rsu_wme_ac_xfer_map[prio]; 2056 hasqos = 1; 2057 } else { 2058 /* Non-QoS TID */ 2059 /* XXX TODO: tid=0 for non-qos TID? */ 2060 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2061 hasqos = 0; 2062 prio = 0; 2063 } 2064 2065 qid = rsu_ac2qid[prio]; 2066#if 0 2067 switch (type) { 2068 case IEEE80211_FC0_TYPE_CTL: 2069 case IEEE80211_FC0_TYPE_MGT: 2070 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2071 break; 2072 default: 2073 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2074 break; 2075 } 2076 hasqos = 0; 2077#endif 2078 2079 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2080 __func__, 2081 prio, 2082 which, 2083 hasqos); 2084 2085 /* Fill Tx descriptor. */ 2086 txd = (struct r92s_tx_desc *)data->buf; 2087 memset(txd, 0, sizeof(*txd)); 2088 2089 txd->txdw0 |= htole32( 2090 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2091 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2092 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2093 2094 txd->txdw1 |= htole32( 2095 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2096 if (!hasqos) 2097 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2098#ifdef notyet 2099 if (k != NULL) { 2100 switch (k->wk_cipher->ic_cipher) { 2101 case IEEE80211_CIPHER_WEP: 2102 cipher = R92S_TXDW1_CIPHER_WEP; 2103 break; 2104 case IEEE80211_CIPHER_TKIP: 2105 cipher = R92S_TXDW1_CIPHER_TKIP; 2106 break; 2107 case IEEE80211_CIPHER_AES_CCM: 2108 cipher = R92S_TXDW1_CIPHER_AES; 2109 break; 2110 default: 2111 cipher = R92S_TXDW1_CIPHER_NONE; 2112 } 2113 txd->txdw1 |= htole32( 2114 SM(R92S_TXDW1_CIPHER, cipher) | 2115 SM(R92S_TXDW1_KEYIDX, k->k_id)); 2116 } 2117#endif 2118 /* XXX todo: set AGGEN bit if appropriate? */ 2119 txd->txdw2 |= htole32(R92S_TXDW2_BK); 2120 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 2121 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2122 /* 2123 * Firmware will use and increment the sequence number for the 2124 * specified priority. 2125 */ 2126 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2127 2128 if (ieee80211_radiotap_active_vap(vap)) { 2129 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2130 2131 tap->wt_flags = 0; 2132 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 2133 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 2134 ieee80211_radiotap_tx(vap, m0); 2135 } 2136 2137 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2138 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2139 2140 data->buflen = xferlen; 2141 data->ni = ni; 2142 data->m = m0; 2143 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2144 2145 /* start transfer, if any */ 2146 usbd_transfer_start(sc->sc_xfer[which]); 2147 return (0); 2148} 2149 2150static int 2151rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2152{ 2153 struct rsu_softc *sc = ic->ic_softc; 2154 int error; 2155 2156 RSU_LOCK(sc); 2157 if (!sc->sc_running) { 2158 RSU_UNLOCK(sc); 2159 return (ENXIO); 2160 } 2161 2162 /* 2163 * XXX TODO: ensure that we treat 'm' as a list of frames 2164 * to transmit! 2165 */ 2166 error = mbufq_enqueue(&sc->sc_snd, m); 2167 if (error) { 2168 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2169 "%s: mbufq_enable: failed (%d)\n", 2170 __func__, 2171 error); 2172 RSU_UNLOCK(sc); 2173 return (error); 2174 } 2175 RSU_UNLOCK(sc); 2176 2177 /* This kicks the TX taskqueue */ 2178 rsu_start(sc); 2179 2180 return (0); 2181} 2182 2183static void 2184rsu_drain_mbufq(struct rsu_softc *sc) 2185{ 2186 struct mbuf *m; 2187 struct ieee80211_node *ni; 2188 2189 RSU_ASSERT_LOCKED(sc); 2190 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2191 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2192 m->m_pkthdr.rcvif = NULL; 2193 ieee80211_free_node(ni); 2194 m_freem(m); 2195 } 2196} 2197 2198static void 2199_rsu_start(struct rsu_softc *sc) 2200{ 2201 struct ieee80211_node *ni; 2202 struct rsu_data *bf; 2203 struct mbuf *m; 2204 2205 RSU_ASSERT_LOCKED(sc); 2206 2207 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2208 bf = rsu_getbuf(sc); 2209 if (bf == NULL) { 2210 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2211 "%s: failed to get buffer\n", __func__); 2212 mbufq_prepend(&sc->sc_snd, m); 2213 break; 2214 } 2215 2216 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2217 m->m_pkthdr.rcvif = NULL; 2218 2219 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2220 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2221 "%s: failed to transmit\n", __func__); 2222 if_inc_counter(ni->ni_vap->iv_ifp, 2223 IFCOUNTER_OERRORS, 1); 2224 rsu_freebuf(sc, bf); 2225 ieee80211_free_node(ni); 2226 m_freem(m); 2227 break; 2228 } 2229 } 2230} 2231 2232static void 2233rsu_start(struct rsu_softc *sc) 2234{ 2235 2236 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 2237} 2238 2239static void 2240rsu_parent(struct ieee80211com *ic) 2241{ 2242 struct rsu_softc *sc = ic->ic_softc; 2243 int startall = 0; 2244 2245 RSU_LOCK(sc); 2246 if (ic->ic_nrunning > 0) { 2247 if (!sc->sc_running) { 2248 rsu_init(sc); 2249 startall = 1; 2250 } 2251 } else if (sc->sc_running) 2252 rsu_stop(sc); 2253 RSU_UNLOCK(sc); 2254 2255 if (startall) 2256 ieee80211_start_all(ic); 2257} 2258 2259/* 2260 * Power on sequence for A-cut adapters. 2261 */ 2262static void 2263rsu_power_on_acut(struct rsu_softc *sc) 2264{ 2265 uint32_t reg; 2266 2267 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 2268 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 2269 2270 /* Enable AFE macro block's bandgap and Mbias. */ 2271 rsu_write_1(sc, R92S_AFE_MISC, 2272 rsu_read_1(sc, R92S_AFE_MISC) | 2273 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 2274 /* Enable LDOA15 block. */ 2275 rsu_write_1(sc, R92S_LDOA15_CTRL, 2276 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 2277 2278 rsu_write_1(sc, R92S_SPS1_CTRL, 2279 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 2280 rsu_ms_delay(sc, 2000); 2281 /* Enable switch regulator block. */ 2282 rsu_write_1(sc, R92S_SPS1_CTRL, 2283 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 2284 2285 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 2286 2287 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2288 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 2289 2290 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2291 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 2292 2293 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2294 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 2295 2296 /* Enable AFE clock. */ 2297 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 2298 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 2299 /* Enable AFE PLL macro block. */ 2300 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 2301 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 2302 /* Attach AFE PLL to MACTOP/BB. */ 2303 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 2304 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 2305 2306 /* Switch to 40MHz clock instead of 80MHz. */ 2307 rsu_write_2(sc, R92S_SYS_CLKR, 2308 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 2309 2310 /* Enable MAC clock. */ 2311 rsu_write_2(sc, R92S_SYS_CLKR, 2312 rsu_read_2(sc, R92S_SYS_CLKR) | 2313 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 2314 2315 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 2316 2317 /* Enable digital core and IOREG R/W. */ 2318 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2319 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 2320 2321 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2322 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 2323 2324 /* Switch the control path to firmware. */ 2325 reg = rsu_read_2(sc, R92S_SYS_CLKR); 2326 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 2327 rsu_write_2(sc, R92S_SYS_CLKR, reg); 2328 2329 rsu_write_2(sc, R92S_CR, 0x37fc); 2330 2331 /* Fix USB RX FIFO issue. */ 2332 rsu_write_1(sc, 0xfe5c, 2333 rsu_read_1(sc, 0xfe5c) | 0x80); 2334 rsu_write_1(sc, 0x00ab, 2335 rsu_read_1(sc, 0x00ab) | 0xc0); 2336 2337 rsu_write_1(sc, R92S_SYS_CLKR, 2338 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 2339} 2340 2341/* 2342 * Power on sequence for B-cut and C-cut adapters. 2343 */ 2344static void 2345rsu_power_on_bcut(struct rsu_softc *sc) 2346{ 2347 uint32_t reg; 2348 int ntries; 2349 2350 /* Prevent eFuse leakage. */ 2351 rsu_write_1(sc, 0x37, 0xb0); 2352 rsu_ms_delay(sc, 10); 2353 rsu_write_1(sc, 0x37, 0x30); 2354 2355 /* Switch the control path to hardware. */ 2356 reg = rsu_read_2(sc, R92S_SYS_CLKR); 2357 if (reg & R92S_FWHW_SEL) { 2358 rsu_write_2(sc, R92S_SYS_CLKR, 2359 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 2360 } 2361 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2362 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 2363 rsu_ms_delay(sc, 1); 2364 2365 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 2366 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 2367 2368 reg = rsu_read_1(sc, R92S_AFE_MISC); 2369 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 2370 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 2371 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 2372 2373 /* Enable PLL. */ 2374 rsu_write_1(sc, R92S_LDOA15_CTRL, 2375 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 2376 2377 rsu_write_1(sc, R92S_LDOV12D_CTRL, 2378 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 2379 2380 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2381 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 2382 2383 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2384 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 2385 2386 /* Support 64KB IMEM. */ 2387 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 2388 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 2389 2390 /* Enable AFE clock. */ 2391 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 2392 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 2393 /* Enable AFE PLL macro block. */ 2394 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 2395 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 2396 rsu_ms_delay(sc, 1); 2397 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 2398 rsu_ms_delay(sc, 1); 2399 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 2400 rsu_ms_delay(sc, 1); 2401 2402 /* Attach AFE PLL to MACTOP/BB. */ 2403 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 2404 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 2405 2406 /* Switch to 40MHz clock. */ 2407 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 2408 /* Disable CPU clock and 80MHz SSC. */ 2409 rsu_write_1(sc, R92S_SYS_CLKR, 2410 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 2411 /* Enable MAC clock. */ 2412 rsu_write_2(sc, R92S_SYS_CLKR, 2413 rsu_read_2(sc, R92S_SYS_CLKR) | 2414 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 2415 2416 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 2417 2418 /* Enable digital core and IOREG R/W. */ 2419 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2420 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 2421 2422 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 2423 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 2424 2425 /* Switch the control path to firmware. */ 2426 reg = rsu_read_2(sc, R92S_SYS_CLKR); 2427 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 2428 rsu_write_2(sc, R92S_SYS_CLKR, reg); 2429 2430 rsu_write_2(sc, R92S_CR, 0x37fc); 2431 2432 /* Fix USB RX FIFO issue. */ 2433 rsu_write_1(sc, 0xfe5c, 2434 rsu_read_1(sc, 0xfe5c) | 0x80); 2435 2436 rsu_write_1(sc, R92S_SYS_CLKR, 2437 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 2438 2439 rsu_write_1(sc, 0xfe1c, 0x80); 2440 2441 /* Make sure TxDMA is ready to download firmware. */ 2442 for (ntries = 0; ntries < 20; ntries++) { 2443 reg = rsu_read_1(sc, R92S_TCR); 2444 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 2445 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 2446 break; 2447 rsu_ms_delay(sc, 1); 2448 } 2449 if (ntries == 20) { 2450 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 2451 "%s: TxDMA is not ready\n", 2452 __func__); 2453 /* Reset TxDMA. */ 2454 reg = rsu_read_1(sc, R92S_CR); 2455 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 2456 rsu_ms_delay(sc, 1); 2457 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 2458 } 2459} 2460 2461static void 2462rsu_power_off(struct rsu_softc *sc) 2463{ 2464 /* Turn RF off. */ 2465 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 2466 rsu_ms_delay(sc, 5); 2467 2468 /* Turn MAC off. */ 2469 /* Switch control path. */ 2470 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 2471 /* Reset MACTOP. */ 2472 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 2473 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 2474 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 2475 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 2476 2477 /* Disable AFE PLL. */ 2478 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 2479 /* Disable A15V. */ 2480 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 2481 /* Disable eFuse 1.2V. */ 2482 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 2483 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 2484 /* Enable AFE macro block's bandgap and Mbias. */ 2485 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 2486 /* Disable 1.6V LDO. */ 2487 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 2488 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 2489 2490 /* Firmware - tell it to switch things off */ 2491 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 2492} 2493 2494static int 2495rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 2496{ 2497 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2498 struct rsu_data *data; 2499 struct r92s_tx_desc *txd; 2500 int mlen; 2501 2502 while (len > 0) { 2503 data = rsu_getbuf(sc); 2504 if (data == NULL) 2505 return (ENOMEM); 2506 txd = (struct r92s_tx_desc *)data->buf; 2507 memset(txd, 0, sizeof(*txd)); 2508 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 2509 /* Last chunk. */ 2510 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 2511 mlen = len; 2512 } else 2513 mlen = RSU_TXBUFSZ - sizeof(*txd); 2514 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 2515 memcpy(&txd[1], buf, mlen); 2516 data->buflen = sizeof(*txd) + mlen; 2517 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 2518 "%s: starting transfer %p\n", 2519 __func__, data); 2520 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2521 buf += mlen; 2522 len -= mlen; 2523 } 2524 usbd_transfer_start(sc->sc_xfer[which]); 2525 return (0); 2526} 2527 2528static int 2529rsu_load_firmware(struct rsu_softc *sc) 2530{ 2531 const struct r92s_fw_hdr *hdr; 2532 struct r92s_fw_priv *dmem; 2533 struct ieee80211com *ic = &sc->sc_ic; 2534 const uint8_t *imem, *emem; 2535 int imemsz, ememsz; 2536 const struct firmware *fw; 2537 size_t size; 2538 uint32_t reg; 2539 int ntries, error; 2540 2541 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 2542 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 2543 "%s: Firmware already loaded\n", 2544 __func__); 2545 return (0); 2546 } 2547 2548 RSU_UNLOCK(sc); 2549 /* Read firmware image from the filesystem. */ 2550 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 2551 device_printf(sc->sc_dev, 2552 "%s: failed load firmware of file rsu-rtl8712fw\n", 2553 __func__); 2554 RSU_LOCK(sc); 2555 return (ENXIO); 2556 } 2557 RSU_LOCK(sc); 2558 size = fw->datasize; 2559 if (size < sizeof(*hdr)) { 2560 device_printf(sc->sc_dev, "firmware too short\n"); 2561 error = EINVAL; 2562 goto fail; 2563 } 2564 hdr = (const struct r92s_fw_hdr *)fw->data; 2565 if (hdr->signature != htole16(0x8712) && 2566 hdr->signature != htole16(0x8192)) { 2567 device_printf(sc->sc_dev, 2568 "invalid firmware signature 0x%x\n", 2569 le16toh(hdr->signature)); 2570 error = EINVAL; 2571 goto fail; 2572 } 2573 DPRINTF("FW V%d %02x-%02x %02x:%02x\n", le16toh(hdr->version), 2574 hdr->month, hdr->day, hdr->hour, hdr->minute); 2575 2576 /* Make sure that driver and firmware are in sync. */ 2577 if (hdr->privsz != htole32(sizeof(*dmem))) { 2578 device_printf(sc->sc_dev, "unsupported firmware image\n"); 2579 error = EINVAL; 2580 goto fail; 2581 } 2582 /* Get FW sections sizes. */ 2583 imemsz = le32toh(hdr->imemsz); 2584 ememsz = le32toh(hdr->sramsz); 2585 /* Check that all FW sections fit in image. */ 2586 if (size < sizeof(*hdr) + imemsz + ememsz) { 2587 device_printf(sc->sc_dev, "firmware too short\n"); 2588 error = EINVAL; 2589 goto fail; 2590 } 2591 imem = (const uint8_t *)&hdr[1]; 2592 emem = imem + imemsz; 2593 2594 /* Load IMEM section. */ 2595 error = rsu_fw_loadsection(sc, imem, imemsz); 2596 if (error != 0) { 2597 device_printf(sc->sc_dev, 2598 "could not load firmware section %s\n", "IMEM"); 2599 goto fail; 2600 } 2601 /* Wait for load to complete. */ 2602 for (ntries = 0; ntries != 50; ntries++) { 2603 rsu_ms_delay(sc, 10); 2604 reg = rsu_read_1(sc, R92S_TCR); 2605 if (reg & R92S_TCR_IMEM_CODE_DONE) 2606 break; 2607 } 2608 if (ntries == 50) { 2609 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 2610 error = ETIMEDOUT; 2611 goto fail; 2612 } 2613 /* Load EMEM section. */ 2614 error = rsu_fw_loadsection(sc, emem, ememsz); 2615 if (error != 0) { 2616 device_printf(sc->sc_dev, 2617 "could not load firmware section %s\n", "EMEM"); 2618 goto fail; 2619 } 2620 /* Wait for load to complete. */ 2621 for (ntries = 0; ntries != 50; ntries++) { 2622 rsu_ms_delay(sc, 10); 2623 reg = rsu_read_2(sc, R92S_TCR); 2624 if (reg & R92S_TCR_EMEM_CODE_DONE) 2625 break; 2626 } 2627 if (ntries == 50) { 2628 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 2629 error = ETIMEDOUT; 2630 goto fail; 2631 } 2632 /* Enable CPU. */ 2633 rsu_write_1(sc, R92S_SYS_CLKR, 2634 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 2635 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 2636 device_printf(sc->sc_dev, "could not enable system clock\n"); 2637 error = EIO; 2638 goto fail; 2639 } 2640 rsu_write_2(sc, R92S_SYS_FUNC_EN, 2641 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 2642 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 2643 device_printf(sc->sc_dev, 2644 "could not enable microcontroller\n"); 2645 error = EIO; 2646 goto fail; 2647 } 2648 /* Wait for CPU to initialize. */ 2649 for (ntries = 0; ntries < 100; ntries++) { 2650 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 2651 break; 2652 rsu_ms_delay(sc, 1); 2653 } 2654 if (ntries == 100) { 2655 device_printf(sc->sc_dev, 2656 "timeout waiting for microcontroller\n"); 2657 error = ETIMEDOUT; 2658 goto fail; 2659 } 2660 2661 /* Update DMEM section before loading. */ 2662 dmem = __DECONST(struct r92s_fw_priv *, &hdr->priv); 2663 memset(dmem, 0, sizeof(*dmem)); 2664 dmem->hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 2665 dmem->nendpoints = sc->sc_nendpoints; 2666 dmem->chip_version = sc->cut; 2667 /* XXX TODO: rf_config should come from ROM */ 2668 dmem->rf_config = 0x11; /* 1T1R */ 2669 dmem->vcs_type = R92S_VCS_TYPE_AUTO; 2670 dmem->vcs_mode = R92S_VCS_MODE_RTS_CTS; 2671 dmem->turbo_mode = 0; 2672 dmem->bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 2673 dmem->amsdu2ampdu_en = !! (sc->sc_ht); 2674 dmem->ampdu_en = !! (sc->sc_ht); 2675 dmem->agg_offload = !! (sc->sc_ht); 2676 dmem->qos_en = 1; 2677 dmem->ps_offload = 1; 2678 dmem->lowpower_mode = 1; /* XXX TODO: configurable? */ 2679 /* Load DMEM section. */ 2680 error = rsu_fw_loadsection(sc, (uint8_t *)dmem, sizeof(*dmem)); 2681 if (error != 0) { 2682 device_printf(sc->sc_dev, 2683 "could not load firmware section %s\n", "DMEM"); 2684 goto fail; 2685 } 2686 /* Wait for load to complete. */ 2687 for (ntries = 0; ntries < 100; ntries++) { 2688 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 2689 break; 2690 rsu_ms_delay(sc, 1); 2691 } 2692 if (ntries == 100) { 2693 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 2694 "DMEM"); 2695 error = ETIMEDOUT; 2696 goto fail; 2697 } 2698 /* Wait for firmware readiness. */ 2699 for (ntries = 0; ntries < 60; ntries++) { 2700 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 2701 break; 2702 rsu_ms_delay(sc, 1); 2703 } 2704 if (ntries == 60) { 2705 device_printf(sc->sc_dev, 2706 "timeout waiting for firmware readiness\n"); 2707 error = ETIMEDOUT; 2708 goto fail; 2709 } 2710 fail: 2711 firmware_put(fw, FIRMWARE_UNLOAD); 2712 return (error); 2713} 2714 2715 2716static int 2717rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2718 const struct ieee80211_bpf_params *params) 2719{ 2720 struct ieee80211com *ic = ni->ni_ic; 2721 struct rsu_softc *sc = ic->ic_softc; 2722 struct rsu_data *bf; 2723 2724 /* prevent management frames from being sent if we're not ready */ 2725 if (!sc->sc_running) { 2726 m_freem(m); 2727 ieee80211_free_node(ni); 2728 return (ENETDOWN); 2729 } 2730 RSU_LOCK(sc); 2731 bf = rsu_getbuf(sc); 2732 if (bf == NULL) { 2733 ieee80211_free_node(ni); 2734 m_freem(m); 2735 RSU_UNLOCK(sc); 2736 return (ENOBUFS); 2737 } 2738 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2739 ieee80211_free_node(ni); 2740 m_freem(m); 2741 rsu_freebuf(sc, bf); 2742 RSU_UNLOCK(sc); 2743 return (EIO); 2744 } 2745 RSU_UNLOCK(sc); 2746 2747 return (0); 2748} 2749 2750static void 2751rsu_init(struct rsu_softc *sc) 2752{ 2753 struct ieee80211com *ic = &sc->sc_ic; 2754 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2755 uint8_t macaddr[IEEE80211_ADDR_LEN]; 2756 int error; 2757 int i; 2758 2759 RSU_ASSERT_LOCKED(sc); 2760 2761 /* Ensure the mbuf queue is drained */ 2762 rsu_drain_mbufq(sc); 2763 2764 /* Init host async commands ring. */ 2765 sc->cmdq.cur = sc->cmdq.next = sc->cmdq.queued = 0; 2766 2767 /* Reset power management state. */ 2768 rsu_write_1(sc, R92S_USB_HRPWM, 0); 2769 2770 /* Power on adapter. */ 2771 if (sc->cut == 1) 2772 rsu_power_on_acut(sc); 2773 else 2774 rsu_power_on_bcut(sc); 2775 2776 /* Load firmware. */ 2777 error = rsu_load_firmware(sc); 2778 if (error != 0) 2779 goto fail; 2780 2781 /* Enable Rx TCP checksum offload. */ 2782 rsu_write_4(sc, R92S_RCR, 2783 rsu_read_4(sc, R92S_RCR) | 0x04000000); 2784 /* Append PHY status. */ 2785 rsu_write_4(sc, R92S_RCR, 2786 rsu_read_4(sc, R92S_RCR) | 0x02000000); 2787 2788 rsu_write_4(sc, R92S_CR, 2789 rsu_read_4(sc, R92S_CR) & ~0xff000000); 2790 2791 /* Use 128 bytes pages. */ 2792 rsu_write_1(sc, 0x00b5, 2793 rsu_read_1(sc, 0x00b5) | 0x01); 2794 /* Enable USB Rx aggregation. */ 2795 rsu_write_1(sc, 0x00bd, 2796 rsu_read_1(sc, 0x00bd) | 0x80); 2797 /* Set USB Rx aggregation threshold. */ 2798 rsu_write_1(sc, 0x00d9, 0x01); 2799 /* Set USB Rx aggregation timeout (1.7ms/4). */ 2800 rsu_write_1(sc, 0xfe5b, 0x04); 2801 /* Fix USB Rx FIFO issue. */ 2802 rsu_write_1(sc, 0xfe5c, 2803 rsu_read_1(sc, 0xfe5c) | 0x80); 2804 2805 /* Set MAC address. */ 2806 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 2807 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 2808 2809 /* It really takes 1.5 seconds for the firmware to boot: */ 2810 rsu_ms_delay(sc, 2000); 2811 2812 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 2813 __func__, 2814 ether_sprintf(macaddr)); 2815 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 2816 IEEE80211_ADDR_LEN); 2817 if (error != 0) { 2818 device_printf(sc->sc_dev, "could not set MAC address\n"); 2819 goto fail; 2820 } 2821 2822 /* Set PS mode fully active */ 2823 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 2824 2825 if (error != 0) { 2826 device_printf(sc->sc_dev, "could not set PS mode\n"); 2827 goto fail; 2828 } 2829 2830 sc->sc_scan_pass = 0; 2831 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 2832 2833 /* We're ready to go. */ 2834 sc->sc_running = 1; 2835 sc->sc_scanning = 0; 2836 return; 2837fail: 2838 /* Need to stop all failed transfers, if any */ 2839 for (i = 0; i != RSU_N_TRANSFER; i++) 2840 usbd_transfer_stop(sc->sc_xfer[i]); 2841} 2842 2843static void 2844rsu_stop(struct rsu_softc *sc) 2845{ 2846 int i; 2847 2848 RSU_ASSERT_LOCKED(sc); 2849 2850 sc->sc_running = 0; 2851 sc->sc_calibrating = 0; 2852 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 2853 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 2854 2855 /* Power off adapter. */ 2856 rsu_power_off(sc); 2857 2858 for (i = 0; i < RSU_N_TRANSFER; i++) 2859 usbd_transfer_stop(sc->sc_xfer[i]); 2860 2861 /* Ensure the mbuf queue is drained */ 2862 rsu_drain_mbufq(sc); 2863} 2864 2865/* 2866 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 2867 * which breaks any kind of driver serialisation. 2868 */ 2869static void 2870rsu_ms_delay(struct rsu_softc *sc, int ms) 2871{ 2872 2873 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 2874 DELAY(ms * 1000); 2875} 2876