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 tx a-mpdu 26 * o hostap / ibss / mesh 27 * o power-save operation 28 */ 29 30#include "opt_wlan.h" 31 32#include <sys/param.h> 33#include <sys/endian.h> 34#include <sys/sockio.h> 35#include <sys/malloc.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/firmware.h> 43#include <sys/module.h> 44 45#include <net/bpf.h> 46#include <net/if.h> 47#include <net/if_var.h> 48#include <net/if_arp.h> 49#include <net/if_dl.h> 50#include <net/if_media.h> 51#include <net/if_types.h> 52 53#include <netinet/in.h> 54#include <netinet/in_systm.h> 55#include <netinet/in_var.h> 56#include <netinet/if_ether.h> 57#include <netinet/ip.h> 58 59#include <net80211/ieee80211_var.h> 60#include <net80211/ieee80211_regdomain.h> 61#include <net80211/ieee80211_radiotap.h> 62 63#include <dev/usb/usb.h> 64#include <dev/usb/usbdi.h> 65#include "usbdevs.h" 66 67#include <dev/rtwn/if_rtwn_ridx.h> /* XXX */ 68#include <dev/usb/wlan/if_rsureg.h> 69 70#define RSU_RATE_IS_CCK RTWN_RATE_IS_CCK 71 72#ifdef USB_DEBUG 73static int rsu_debug = 0; 74SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 75 "USB rsu"); 76SYSCTL_INT(_hw_usb_rsu, OID_AUTO, debug, CTLFLAG_RWTUN, &rsu_debug, 0, 77 "Debug level"); 78#define RSU_DPRINTF(_sc, _flg, ...) \ 79 do \ 80 if (((_flg) == (RSU_DEBUG_ANY)) || (rsu_debug & (_flg))) \ 81 device_printf((_sc)->sc_dev, __VA_ARGS__); \ 82 while (0) 83#else 84#define RSU_DPRINTF(_sc, _flg, ...) 85#endif 86 87static int rsu_enable_11n = 1; 88TUNABLE_INT("hw.usb.rsu.enable_11n", &rsu_enable_11n); 89 90#define RSU_DEBUG_ANY 0xffffffff 91#define RSU_DEBUG_TX 0x00000001 92#define RSU_DEBUG_RX 0x00000002 93#define RSU_DEBUG_RESET 0x00000004 94#define RSU_DEBUG_CALIB 0x00000008 95#define RSU_DEBUG_STATE 0x00000010 96#define RSU_DEBUG_SCAN 0x00000020 97#define RSU_DEBUG_FWCMD 0x00000040 98#define RSU_DEBUG_TXDONE 0x00000080 99#define RSU_DEBUG_FW 0x00000100 100#define RSU_DEBUG_FWDBG 0x00000200 101#define RSU_DEBUG_AMPDU 0x00000400 102#define RSU_DEBUG_KEY 0x00000800 103#define RSU_DEBUG_USB 0x00001000 104 105static const STRUCT_USB_HOST_ID rsu_devs[] = { 106#define RSU_HT_NOT_SUPPORTED 0 107#define RSU_HT_SUPPORTED 1 108#define RSU_DEV_HT(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 109 RSU_HT_SUPPORTED) } 110#define RSU_DEV(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 111 RSU_HT_NOT_SUPPORTED) } 112 RSU_DEV(ASUS, RTL8192SU), 113 RSU_DEV(AZUREWAVE, RTL8192SU_4), 114 RSU_DEV(SITECOMEU, WLA1000), 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_getradiocaps(struct ieee80211com *, int, int *, 173 struct ieee80211_channel[]); 174static void rsu_set_channel(struct ieee80211com *); 175static void rsu_scan_curchan(struct ieee80211_scan_state *, unsigned long); 176static void rsu_scan_mindwell(struct ieee80211_scan_state *); 177static void rsu_update_promisc(struct ieee80211com *); 178static uint8_t rsu_get_multi_pos(const uint8_t[]); 179static void rsu_set_multi(struct rsu_softc *); 180static void rsu_update_mcast(struct ieee80211com *); 181static int rsu_alloc_rx_list(struct rsu_softc *); 182static void rsu_free_rx_list(struct rsu_softc *); 183static int rsu_alloc_tx_list(struct rsu_softc *); 184static void rsu_free_tx_list(struct rsu_softc *); 185static void rsu_free_list(struct rsu_softc *, struct rsu_data [], int); 186static struct rsu_data *_rsu_getbuf(struct rsu_softc *); 187static struct rsu_data *rsu_getbuf(struct rsu_softc *); 188static void rsu_freebuf(struct rsu_softc *, struct rsu_data *); 189static int rsu_write_region_1(struct rsu_softc *, uint16_t, uint8_t *, 190 int); 191static void rsu_write_1(struct rsu_softc *, uint16_t, uint8_t); 192static void rsu_write_2(struct rsu_softc *, uint16_t, uint16_t); 193static void rsu_write_4(struct rsu_softc *, uint16_t, uint32_t); 194static int rsu_read_region_1(struct rsu_softc *, uint16_t, uint8_t *, 195 int); 196static uint8_t rsu_read_1(struct rsu_softc *, uint16_t); 197static uint16_t rsu_read_2(struct rsu_softc *, uint16_t); 198static uint32_t rsu_read_4(struct rsu_softc *, uint16_t); 199static int rsu_fw_iocmd(struct rsu_softc *, uint32_t); 200static uint8_t rsu_efuse_read_1(struct rsu_softc *, uint16_t); 201static int rsu_read_rom(struct rsu_softc *); 202static int rsu_fw_cmd(struct rsu_softc *, uint8_t, void *, int); 203static void rsu_calib_task(void *, int); 204static void rsu_tx_task(void *, int); 205static void rsu_set_led(struct rsu_softc *, int); 206static int rsu_monitor_newstate(struct ieee80211vap *, 207 enum ieee80211_state, int); 208static int rsu_newstate(struct ieee80211vap *, enum ieee80211_state, int); 209static int rsu_key_alloc(struct ieee80211vap *, struct ieee80211_key *, 210 ieee80211_keyix *, ieee80211_keyix *); 211static int rsu_process_key(struct ieee80211vap *, 212 const struct ieee80211_key *, int); 213static int rsu_key_set(struct ieee80211vap *, 214 const struct ieee80211_key *); 215static int rsu_key_delete(struct ieee80211vap *, 216 const struct ieee80211_key *); 217static int rsu_cam_read(struct rsu_softc *, uint8_t, uint32_t *); 218static void rsu_cam_write(struct rsu_softc *, uint8_t, uint32_t); 219static int rsu_key_check(struct rsu_softc *, ieee80211_keyix, int); 220static uint8_t rsu_crypto_mode(struct rsu_softc *, u_int, int); 221static int rsu_set_key_group(struct rsu_softc *, 222 const struct ieee80211_key *); 223static int rsu_set_key_pair(struct rsu_softc *, 224 const struct ieee80211_key *); 225static int rsu_reinit_static_keys(struct rsu_softc *); 226static int rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix); 227static void rsu_delete_key_pair_cb(void *, int); 228static int rsu_site_survey(struct rsu_softc *, 229 struct ieee80211_scan_ssid *); 230static int rsu_join_bss(struct rsu_softc *, struct ieee80211_node *); 231static int rsu_disconnect(struct rsu_softc *); 232static int rsu_hwrssi_to_rssi(struct rsu_softc *, int hw_rssi); 233static void rsu_event_survey(struct rsu_softc *, uint8_t *, int); 234static void rsu_event_join_bss(struct rsu_softc *, uint8_t *, int); 235static void rsu_rx_event(struct rsu_softc *, uint8_t, uint8_t *, int); 236static void rsu_rx_multi_event(struct rsu_softc *, uint8_t *, int); 237static int8_t rsu_get_rssi(struct rsu_softc *, int, void *); 238static struct mbuf * rsu_rx_copy_to_mbuf(struct rsu_softc *, 239 struct r92s_rx_stat *, int); 240static uint32_t rsu_get_tsf_low(struct rsu_softc *); 241static uint32_t rsu_get_tsf_high(struct rsu_softc *); 242static struct ieee80211_node * rsu_rx_frame(struct rsu_softc *, struct mbuf *); 243static struct mbuf * rsu_rx_multi_frame(struct rsu_softc *, uint8_t *, int); 244static struct mbuf * 245 rsu_rxeof(struct usb_xfer *, struct rsu_data *); 246static void rsu_txeof(struct usb_xfer *, struct rsu_data *); 247static int rsu_raw_xmit(struct ieee80211_node *, struct mbuf *, 248 const struct ieee80211_bpf_params *); 249static void rsu_rxfilter_init(struct rsu_softc *); 250static void rsu_rxfilter_set(struct rsu_softc *, uint32_t, uint32_t); 251static void rsu_rxfilter_refresh(struct rsu_softc *); 252static int rsu_init(struct rsu_softc *); 253static int rsu_tx_start(struct rsu_softc *, struct ieee80211_node *, 254 struct mbuf *, struct rsu_data *); 255static int rsu_transmit(struct ieee80211com *, struct mbuf *); 256static void rsu_start(struct rsu_softc *); 257static void _rsu_start(struct rsu_softc *); 258static int rsu_ioctl_net(struct ieee80211com *, u_long, void *); 259static void rsu_parent(struct ieee80211com *); 260static void rsu_stop(struct rsu_softc *); 261static void rsu_ms_delay(struct rsu_softc *, int); 262 263static device_method_t rsu_methods[] = { 264 DEVMETHOD(device_probe, rsu_match), 265 DEVMETHOD(device_attach, rsu_attach), 266 DEVMETHOD(device_detach, rsu_detach), 267 268 DEVMETHOD_END 269}; 270 271static driver_t rsu_driver = { 272 .name = "rsu", 273 .methods = rsu_methods, 274 .size = sizeof(struct rsu_softc) 275}; 276 277static devclass_t rsu_devclass; 278 279DRIVER_MODULE(rsu, uhub, rsu_driver, rsu_devclass, NULL, 0); 280MODULE_DEPEND(rsu, wlan, 1, 1, 1); 281MODULE_DEPEND(rsu, usb, 1, 1, 1); 282MODULE_DEPEND(rsu, firmware, 1, 1, 1); 283MODULE_VERSION(rsu, 1); 284USB_PNP_HOST_INFO(rsu_devs); 285 286static uint8_t rsu_wme_ac_xfer_map[4] = { 287 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 288 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 289 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 290 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 291}; 292 293/* XXX hard-coded */ 294#define RSU_H2C_ENDPOINT 3 295 296static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 297 [RSU_BULK_RX] = { 298 .type = UE_BULK, 299 .endpoint = UE_ADDR_ANY, 300 .direction = UE_DIR_IN, 301 .bufsize = RSU_RXBUFSZ, 302 .flags = { 303 .pipe_bof = 1, 304 .short_xfer_ok = 1 305 }, 306 .callback = rsu_bulk_rx_callback 307 }, 308 [RSU_BULK_TX_BE_BK] = { 309 .type = UE_BULK, 310 .endpoint = 0x06, 311 .direction = UE_DIR_OUT, 312 .bufsize = RSU_TXBUFSZ, 313 .flags = { 314 .ext_buffer = 1, 315 .pipe_bof = 1, 316 .force_short_xfer = 1 317 }, 318 .callback = rsu_bulk_tx_callback_be_bk, 319 .timeout = RSU_TX_TIMEOUT 320 }, 321 [RSU_BULK_TX_VI_VO] = { 322 .type = UE_BULK, 323 .endpoint = 0x04, 324 .direction = UE_DIR_OUT, 325 .bufsize = RSU_TXBUFSZ, 326 .flags = { 327 .ext_buffer = 1, 328 .pipe_bof = 1, 329 .force_short_xfer = 1 330 }, 331 .callback = rsu_bulk_tx_callback_vi_vo, 332 .timeout = RSU_TX_TIMEOUT 333 }, 334 [RSU_BULK_TX_H2C] = { 335 .type = UE_BULK, 336 .endpoint = 0x0d, 337 .direction = UE_DIR_OUT, 338 .bufsize = RSU_TXBUFSZ, 339 .flags = { 340 .ext_buffer = 1, 341 .pipe_bof = 1, 342 .short_xfer_ok = 1 343 }, 344 .callback = rsu_bulk_tx_callback_h2c, 345 .timeout = RSU_TX_TIMEOUT 346 }, 347}; 348 349static int 350rsu_match(device_t self) 351{ 352 struct usb_attach_arg *uaa = device_get_ivars(self); 353 354 if (uaa->usb_mode != USB_MODE_HOST || 355 uaa->info.bIfaceIndex != 0 || 356 uaa->info.bConfigIndex != 0) 357 return (ENXIO); 358 359 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 360} 361 362static int 363rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 364{ 365 366 return (ENOTSUP); 367} 368 369static void 370rsu_update_chw(struct ieee80211com *ic) 371{ 372 373} 374 375/* 376 * notification from net80211 that it'd like to do A-MPDU on the given TID. 377 * 378 * Note: this actually hangs traffic at the present moment, so don't use it. 379 * The firmware debug does indiciate it's sending and establishing a TX AMPDU 380 * session, but then no traffic flows. 381 */ 382static int 383rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 384{ 385#if 0 386 struct rsu_softc *sc = ni->ni_ic->ic_softc; 387 struct r92s_add_ba_req req; 388 389 /* Don't enable if it's requested or running */ 390 if (IEEE80211_AMPDU_REQUESTED(tap)) 391 return (0); 392 if (IEEE80211_AMPDU_RUNNING(tap)) 393 return (0); 394 395 /* We've decided to send addba; so send it */ 396 req.tid = htole32(tap->txa_tid); 397 398 /* Attempt net80211 state */ 399 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 400 return (0); 401 402 /* Send the firmware command */ 403 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: establishing AMPDU TX for TID %d\n", 404 __func__, 405 tap->txa_tid); 406 407 RSU_LOCK(sc); 408 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 1) { 409 RSU_UNLOCK(sc); 410 /* Mark failure */ 411 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 412 return (0); 413 } 414 RSU_UNLOCK(sc); 415 416 /* Mark success; we don't get any further notifications */ 417 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 418#endif 419 /* Return 0, we're driving this ourselves */ 420 return (0); 421} 422 423static int 424rsu_wme_update(struct ieee80211com *ic) 425{ 426 427 /* Firmware handles this; not our problem */ 428 return (0); 429} 430 431static int 432rsu_attach(device_t self) 433{ 434 struct usb_attach_arg *uaa = device_get_ivars(self); 435 struct rsu_softc *sc = device_get_softc(self); 436 struct ieee80211com *ic = &sc->sc_ic; 437 int error; 438 uint8_t iface_index; 439 struct usb_interface *iface; 440 const char *rft; 441 442 device_set_usb_desc(self); 443 sc->sc_udev = uaa->device; 444 sc->sc_dev = self; 445 sc->sc_rx_checksum_enable = 1; 446 if (rsu_enable_11n) 447 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 448 449 /* Get number of endpoints */ 450 iface = usbd_get_iface(sc->sc_udev, 0); 451 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 452 453 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 454 if (sc->sc_nendpoints != 4) { 455 device_printf(sc->sc_dev, 456 "the driver currently only supports 4-endpoint devices\n"); 457 return (ENXIO); 458 } 459 460 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 461 MTX_DEF); 462 RSU_DELKEY_BMAP_LOCK_INIT(sc); 463 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 464 rsu_calib_task, sc); 465 TASK_INIT(&sc->del_key_task, 0, rsu_delete_key_pair_cb, sc); 466 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 467 mbufq_init(&sc->sc_snd, ifqmaxlen); 468 469 /* Allocate Tx/Rx buffers. */ 470 error = rsu_alloc_rx_list(sc); 471 if (error != 0) { 472 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 473 goto fail_usb; 474 } 475 476 error = rsu_alloc_tx_list(sc); 477 if (error != 0) { 478 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 479 rsu_free_rx_list(sc); 480 goto fail_usb; 481 } 482 483 iface_index = 0; 484 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 485 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 486 if (error) { 487 device_printf(sc->sc_dev, 488 "could not allocate USB transfers, err=%s\n", 489 usbd_errstr(error)); 490 goto fail_usb; 491 } 492 RSU_LOCK(sc); 493 /* Read chip revision. */ 494 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 495 if (sc->cut != 3) 496 sc->cut = (sc->cut >> 1) + 1; 497 error = rsu_read_rom(sc); 498 RSU_UNLOCK(sc); 499 if (error != 0) { 500 device_printf(self, "could not read ROM\n"); 501 goto fail_rom; 502 } 503 504 /* Figure out TX/RX streams */ 505 switch (sc->rom[84]) { 506 case 0x0: 507 sc->sc_rftype = RTL8712_RFCONFIG_1T1R; 508 sc->sc_nrxstream = 1; 509 sc->sc_ntxstream = 1; 510 rft = "1T1R"; 511 break; 512 case 0x1: 513 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 514 sc->sc_nrxstream = 2; 515 sc->sc_ntxstream = 1; 516 rft = "1T2R"; 517 break; 518 case 0x2: 519 sc->sc_rftype = RTL8712_RFCONFIG_2T2R; 520 sc->sc_nrxstream = 2; 521 sc->sc_ntxstream = 2; 522 rft = "2T2R"; 523 break; 524 case 0x3: /* "green" NIC */ 525 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 526 sc->sc_nrxstream = 2; 527 sc->sc_ntxstream = 1; 528 rft = "1T2R ('green')"; 529 break; 530 default: 531 device_printf(sc->sc_dev, 532 "%s: unknown board type (rfconfig=0x%02x)\n", 533 __func__, 534 sc->rom[84]); 535 goto fail_rom; 536 } 537 538 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 539 device_printf(self, "MAC/BB RTL8712 cut %d %s\n", sc->cut, rft); 540 541 ic->ic_softc = sc; 542 ic->ic_name = device_get_nameunit(self); 543 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 544 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 545 546 /* Set device capabilities. */ 547 ic->ic_caps = 548 IEEE80211_C_STA | /* station mode */ 549 IEEE80211_C_MONITOR | /* monitor mode supported */ 550#if 0 551 IEEE80211_C_BGSCAN | /* Background scan. */ 552#endif 553 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 554 IEEE80211_C_WME | /* WME/QoS */ 555 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 556 IEEE80211_C_WPA; /* WPA/RSN. */ 557 558 ic->ic_cryptocaps = 559 IEEE80211_CRYPTO_WEP | 560 IEEE80211_CRYPTO_TKIP | 561 IEEE80211_CRYPTO_AES_CCM; 562 563 /* Check if HT support is present. */ 564 if (sc->sc_ht) { 565 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 566 567 /* Enable basic HT */ 568 ic->ic_htcaps = IEEE80211_HTC_HT | 569#if 0 570 IEEE80211_HTC_AMPDU | 571#endif 572 IEEE80211_HTC_AMSDU | 573 IEEE80211_HTCAP_MAXAMSDU_3839 | 574 IEEE80211_HTCAP_SMPS_OFF; 575 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 576 577 /* set number of spatial streams */ 578 ic->ic_txstream = sc->sc_ntxstream; 579 ic->ic_rxstream = sc->sc_nrxstream; 580 } 581 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 582 583 rsu_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 584 ic->ic_channels); 585 586 ieee80211_ifattach(ic); 587 ic->ic_raw_xmit = rsu_raw_xmit; 588 ic->ic_scan_start = rsu_scan_start; 589 ic->ic_scan_end = rsu_scan_end; 590 ic->ic_getradiocaps = rsu_getradiocaps; 591 ic->ic_set_channel = rsu_set_channel; 592 ic->ic_scan_curchan = rsu_scan_curchan; 593 ic->ic_scan_mindwell = rsu_scan_mindwell; 594 ic->ic_vap_create = rsu_vap_create; 595 ic->ic_vap_delete = rsu_vap_delete; 596 ic->ic_update_promisc = rsu_update_promisc; 597 ic->ic_update_mcast = rsu_update_mcast; 598 ic->ic_ioctl = rsu_ioctl_net; 599 ic->ic_parent = rsu_parent; 600 ic->ic_transmit = rsu_transmit; 601 ic->ic_send_mgmt = rsu_send_mgmt; 602 ic->ic_update_chw = rsu_update_chw; 603 ic->ic_ampdu_enable = rsu_ampdu_enable; 604 ic->ic_wme.wme_update = rsu_wme_update; 605 606 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 607 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 608 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 609 RSU_RX_RADIOTAP_PRESENT); 610 611 if (bootverbose) 612 ieee80211_announce(ic); 613 614 return (0); 615 616fail_rom: 617 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 618fail_usb: 619 mtx_destroy(&sc->sc_mtx); 620 return (ENXIO); 621} 622 623static int 624rsu_detach(device_t self) 625{ 626 struct rsu_softc *sc = device_get_softc(self); 627 struct ieee80211com *ic = &sc->sc_ic; 628 629 rsu_stop(sc); 630 631 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 632 633 /* 634 * Free buffers /before/ we detach from net80211, else node 635 * references to destroyed vaps will lead to a panic. 636 */ 637 /* Free Tx/Rx buffers. */ 638 RSU_LOCK(sc); 639 rsu_free_tx_list(sc); 640 rsu_free_rx_list(sc); 641 RSU_UNLOCK(sc); 642 643 /* Frames are freed; detach from net80211 */ 644 ieee80211_ifdetach(ic); 645 646 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 647 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 648 taskqueue_drain(taskqueue_thread, &sc->tx_task); 649 650 RSU_DELKEY_BMAP_LOCK_DESTROY(sc); 651 mtx_destroy(&sc->sc_mtx); 652 653 return (0); 654} 655 656static usb_error_t 657rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 658 void *data) 659{ 660 usb_error_t err; 661 int ntries = 10; 662 663 RSU_ASSERT_LOCKED(sc); 664 665 while (ntries--) { 666 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 667 req, data, 0, NULL, 250 /* ms */); 668 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 669 break; 670 RSU_DPRINTF(sc, RSU_DEBUG_USB, 671 "Control request failed, %s (retries left: %d)\n", 672 usbd_errstr(err), ntries); 673 rsu_ms_delay(sc, 10); 674 } 675 676 return (err); 677} 678 679static struct ieee80211vap * 680rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 681 enum ieee80211_opmode opmode, int flags, 682 const uint8_t bssid[IEEE80211_ADDR_LEN], 683 const uint8_t mac[IEEE80211_ADDR_LEN]) 684{ 685 struct rsu_softc *sc = ic->ic_softc; 686 struct rsu_vap *uvp; 687 struct ieee80211vap *vap; 688 struct ifnet *ifp; 689 690 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 691 return (NULL); 692 693 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 694 vap = &uvp->vap; 695 696 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 697 flags, bssid) != 0) { 698 /* out of memory */ 699 free(uvp, M_80211_VAP); 700 return (NULL); 701 } 702 703 ifp = vap->iv_ifp; 704 ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 705 RSU_LOCK(sc); 706 if (sc->sc_rx_checksum_enable) 707 ifp->if_capenable |= IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 708 RSU_UNLOCK(sc); 709 710 /* override state transition machine */ 711 uvp->newstate = vap->iv_newstate; 712 if (opmode == IEEE80211_M_MONITOR) 713 vap->iv_newstate = rsu_monitor_newstate; 714 else 715 vap->iv_newstate = rsu_newstate; 716 vap->iv_key_alloc = rsu_key_alloc; 717 vap->iv_key_set = rsu_key_set; 718 vap->iv_key_delete = rsu_key_delete; 719 720 /* Limits from the r92su driver */ 721 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 722 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 723 724 /* complete setup */ 725 ieee80211_vap_attach(vap, ieee80211_media_change, 726 ieee80211_media_status, mac); 727 ic->ic_opmode = opmode; 728 729 return (vap); 730} 731 732static void 733rsu_vap_delete(struct ieee80211vap *vap) 734{ 735 struct rsu_vap *uvp = RSU_VAP(vap); 736 737 ieee80211_vap_detach(vap); 738 free(uvp, M_80211_VAP); 739} 740 741static void 742rsu_scan_start(struct ieee80211com *ic) 743{ 744 struct rsu_softc *sc = ic->ic_softc; 745 struct ieee80211_scan_state *ss = ic->ic_scan; 746 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 747 int error; 748 749 /* Scanning is done by the firmware. */ 750 RSU_LOCK(sc); 751 sc->sc_active_scan = !!(ss->ss_flags & IEEE80211_SCAN_ACTIVE); 752 /* XXX TODO: force awake if in network-sleep? */ 753 error = rsu_site_survey(sc, ss->ss_nssid > 0 ? &ss->ss_ssid[0] : NULL); 754 RSU_UNLOCK(sc); 755 if (error != 0) { 756 device_printf(sc->sc_dev, 757 "could not send site survey command\n"); 758 ieee80211_cancel_scan(vap); 759 } 760} 761 762static void 763rsu_scan_end(struct ieee80211com *ic) 764{ 765 /* Nothing to do here. */ 766} 767 768static void 769rsu_getradiocaps(struct ieee80211com *ic, 770 int maxchans, int *nchans, struct ieee80211_channel chans[]) 771{ 772 struct rsu_softc *sc = ic->ic_softc; 773 uint8_t bands[IEEE80211_MODE_BYTES]; 774 775 /* Set supported .11b and .11g rates. */ 776 memset(bands, 0, sizeof(bands)); 777 setbit(bands, IEEE80211_MODE_11B); 778 setbit(bands, IEEE80211_MODE_11G); 779 if (sc->sc_ht) 780 setbit(bands, IEEE80211_MODE_11NG); 781 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, 782 bands, (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) ? 783 NET80211_CBW_FLAG_HT40 : 0); 784} 785 786static void 787rsu_set_channel(struct ieee80211com *ic) 788{ 789 struct rsu_softc *sc = ic->ic_softc; 790 791 /* 792 * Only need to set the channel in Monitor mode. AP scanning and auth 793 * are already taken care of by their respective firmware commands. 794 */ 795 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 796 struct r92s_set_channel cmd; 797 int error; 798 799 cmd.channel = IEEE80211_CHAN2IEEE(ic->ic_curchan); 800 801 RSU_LOCK(sc); 802 error = rsu_fw_cmd(sc, R92S_CMD_SET_CHANNEL, &cmd, 803 sizeof(cmd)); 804 if (error != 0) { 805 device_printf(sc->sc_dev, 806 "%s: error %d setting channel\n", __func__, 807 error); 808 } 809 RSU_UNLOCK(sc); 810 } 811} 812 813static void 814rsu_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 815{ 816 /* Scan is done in rsu_scan_start(). */ 817} 818 819/** 820 * Called by the net80211 framework to indicate 821 * the minimum dwell time has been met, terminate the scan. 822 * We don't actually terminate the scan as the firmware will notify 823 * us when it's finished and we have no way to interrupt it. 824 */ 825static void 826rsu_scan_mindwell(struct ieee80211_scan_state *ss) 827{ 828 /* NB: don't try to abort scan; wait for firmware to finish */ 829} 830 831static void 832rsu_update_promisc(struct ieee80211com *ic) 833{ 834 struct rsu_softc *sc = ic->ic_softc; 835 836 RSU_LOCK(sc); 837 if (sc->sc_running) 838 rsu_rxfilter_refresh(sc); 839 RSU_UNLOCK(sc); 840} 841 842/* 843 * The same as rtwn_get_multi_pos() / rtwn_set_multi(). 844 */ 845static uint8_t 846rsu_get_multi_pos(const uint8_t maddr[]) 847{ 848 uint64_t mask = 0x00004d101df481b4; 849 uint8_t pos = 0x27; /* initial value */ 850 int i, j; 851 852 for (i = 0; i < IEEE80211_ADDR_LEN; i++) 853 for (j = (i == 0) ? 1 : 0; j < 8; j++) 854 if ((maddr[i] >> j) & 1) 855 pos ^= (mask >> (i * 8 + j - 1)); 856 857 pos &= 0x3f; 858 859 return (pos); 860} 861 862static u_int 863rsu_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 864{ 865 uint32_t *mfilt = arg; 866 uint8_t pos; 867 868 pos = rsu_get_multi_pos(LLADDR(sdl)); 869 mfilt[pos / 32] |= (1 << (pos % 32)); 870 871 return (1); 872} 873 874static void 875rsu_set_multi(struct rsu_softc *sc) 876{ 877 struct ieee80211com *ic = &sc->sc_ic; 878 uint32_t mfilt[2]; 879 880 RSU_ASSERT_LOCKED(sc); 881 882 /* general structure was copied from ath(4). */ 883 if (ic->ic_allmulti == 0) { 884 struct ieee80211vap *vap; 885 886 /* 887 * Merge multicast addresses to form the hardware filter. 888 */ 889 mfilt[0] = mfilt[1] = 0; 890 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 891 if_foreach_llmaddr(vap->iv_ifp, rsu_hash_maddr, &mfilt); 892 } else 893 mfilt[0] = mfilt[1] = ~0; 894 895 rsu_write_4(sc, R92S_MAR + 0, mfilt[0]); 896 rsu_write_4(sc, R92S_MAR + 4, mfilt[1]); 897 898 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: MC filter %08x:%08x\n", 899 __func__, mfilt[0], mfilt[1]); 900} 901 902static void 903rsu_update_mcast(struct ieee80211com *ic) 904{ 905 struct rsu_softc *sc = ic->ic_softc; 906 907 RSU_LOCK(sc); 908 if (sc->sc_running) 909 rsu_set_multi(sc); 910 RSU_UNLOCK(sc); 911} 912 913static int 914rsu_alloc_list(struct rsu_softc *sc, struct rsu_data data[], 915 int ndata, int maxsz) 916{ 917 int i, error; 918 919 for (i = 0; i < ndata; i++) { 920 struct rsu_data *dp = &data[i]; 921 dp->sc = sc; 922 dp->m = NULL; 923 dp->buf = malloc(maxsz, M_USBDEV, M_NOWAIT); 924 if (dp->buf == NULL) { 925 device_printf(sc->sc_dev, 926 "could not allocate buffer\n"); 927 error = ENOMEM; 928 goto fail; 929 } 930 dp->ni = NULL; 931 } 932 933 return (0); 934fail: 935 rsu_free_list(sc, data, ndata); 936 return (error); 937} 938 939static int 940rsu_alloc_rx_list(struct rsu_softc *sc) 941{ 942 int error, i; 943 944 error = rsu_alloc_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT, 945 RSU_RXBUFSZ); 946 if (error != 0) 947 return (error); 948 949 STAILQ_INIT(&sc->sc_rx_active); 950 STAILQ_INIT(&sc->sc_rx_inactive); 951 952 for (i = 0; i < RSU_RX_LIST_COUNT; i++) 953 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i], next); 954 955 return (0); 956} 957 958static int 959rsu_alloc_tx_list(struct rsu_softc *sc) 960{ 961 int error, i; 962 963 error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT, 964 RSU_TXBUFSZ); 965 if (error != 0) 966 return (error); 967 968 STAILQ_INIT(&sc->sc_tx_inactive); 969 970 for (i = 0; i != RSU_N_TRANSFER; i++) { 971 STAILQ_INIT(&sc->sc_tx_active[i]); 972 STAILQ_INIT(&sc->sc_tx_pending[i]); 973 } 974 975 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 976 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i], next); 977 } 978 979 return (0); 980} 981 982static void 983rsu_free_tx_list(struct rsu_softc *sc) 984{ 985 int i; 986 987 /* prevent further allocations from TX list(s) */ 988 STAILQ_INIT(&sc->sc_tx_inactive); 989 990 for (i = 0; i != RSU_N_TRANSFER; i++) { 991 STAILQ_INIT(&sc->sc_tx_active[i]); 992 STAILQ_INIT(&sc->sc_tx_pending[i]); 993 } 994 995 rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT); 996} 997 998static void 999rsu_free_rx_list(struct rsu_softc *sc) 1000{ 1001 /* prevent further allocations from RX list(s) */ 1002 STAILQ_INIT(&sc->sc_rx_inactive); 1003 STAILQ_INIT(&sc->sc_rx_active); 1004 1005 rsu_free_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT); 1006} 1007 1008static void 1009rsu_free_list(struct rsu_softc *sc, struct rsu_data data[], int ndata) 1010{ 1011 int i; 1012 1013 for (i = 0; i < ndata; i++) { 1014 struct rsu_data *dp = &data[i]; 1015 1016 if (dp->buf != NULL) { 1017 free(dp->buf, M_USBDEV); 1018 dp->buf = NULL; 1019 } 1020 if (dp->ni != NULL) { 1021 ieee80211_free_node(dp->ni); 1022 dp->ni = NULL; 1023 } 1024 } 1025} 1026 1027static struct rsu_data * 1028_rsu_getbuf(struct rsu_softc *sc) 1029{ 1030 struct rsu_data *bf; 1031 1032 bf = STAILQ_FIRST(&sc->sc_tx_inactive); 1033 if (bf != NULL) 1034 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next); 1035 else 1036 bf = NULL; 1037 return (bf); 1038} 1039 1040static struct rsu_data * 1041rsu_getbuf(struct rsu_softc *sc) 1042{ 1043 struct rsu_data *bf; 1044 1045 RSU_ASSERT_LOCKED(sc); 1046 1047 bf = _rsu_getbuf(sc); 1048 if (bf == NULL) { 1049 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: no buffers\n", __func__); 1050 } 1051 return (bf); 1052} 1053 1054static void 1055rsu_freebuf(struct rsu_softc *sc, struct rsu_data *bf) 1056{ 1057 1058 RSU_ASSERT_LOCKED(sc); 1059 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, bf, next); 1060} 1061 1062static int 1063rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1064 int len) 1065{ 1066 usb_device_request_t req; 1067 1068 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1069 req.bRequest = R92S_REQ_REGS; 1070 USETW(req.wValue, addr); 1071 USETW(req.wIndex, 0); 1072 USETW(req.wLength, len); 1073 1074 return (rsu_do_request(sc, &req, buf)); 1075} 1076 1077static void 1078rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 1079{ 1080 rsu_write_region_1(sc, addr, &val, 1); 1081} 1082 1083static void 1084rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 1085{ 1086 val = htole16(val); 1087 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 1088} 1089 1090static void 1091rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 1092{ 1093 val = htole32(val); 1094 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 1095} 1096 1097static int 1098rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1099 int len) 1100{ 1101 usb_device_request_t req; 1102 1103 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1104 req.bRequest = R92S_REQ_REGS; 1105 USETW(req.wValue, addr); 1106 USETW(req.wIndex, 0); 1107 USETW(req.wLength, len); 1108 1109 return (rsu_do_request(sc, &req, buf)); 1110} 1111 1112static uint8_t 1113rsu_read_1(struct rsu_softc *sc, uint16_t addr) 1114{ 1115 uint8_t val; 1116 1117 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 1118 return (0xff); 1119 return (val); 1120} 1121 1122static uint16_t 1123rsu_read_2(struct rsu_softc *sc, uint16_t addr) 1124{ 1125 uint16_t val; 1126 1127 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 1128 return (0xffff); 1129 return (le16toh(val)); 1130} 1131 1132static uint32_t 1133rsu_read_4(struct rsu_softc *sc, uint16_t addr) 1134{ 1135 uint32_t val; 1136 1137 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 1138 return (0xffffffff); 1139 return (le32toh(val)); 1140} 1141 1142static int 1143rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 1144{ 1145 int ntries; 1146 1147 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 1148 rsu_ms_delay(sc, 1); 1149 for (ntries = 0; ntries < 50; ntries++) { 1150 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 1151 return (0); 1152 rsu_ms_delay(sc, 1); 1153 } 1154 return (ETIMEDOUT); 1155} 1156 1157static uint8_t 1158rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 1159{ 1160 uint32_t reg; 1161 int ntries; 1162 1163 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1164 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 1165 reg &= ~R92S_EFUSE_CTRL_VALID; 1166 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 1167 /* Wait for read operation to complete. */ 1168 for (ntries = 0; ntries < 100; ntries++) { 1169 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1170 if (reg & R92S_EFUSE_CTRL_VALID) 1171 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 1172 rsu_ms_delay(sc, 1); 1173 } 1174 device_printf(sc->sc_dev, 1175 "could not read efuse byte at address 0x%x\n", addr); 1176 return (0xff); 1177} 1178 1179static int 1180rsu_read_rom(struct rsu_softc *sc) 1181{ 1182 uint8_t *rom = sc->rom; 1183 uint16_t addr = 0; 1184 uint32_t reg; 1185 uint8_t off, msk; 1186 int i; 1187 1188 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 1189 reg = rsu_read_1(sc, R92S_EE_9346CR); 1190 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 1191 return (EIO); 1192 1193 /* Turn on 2.5V to prevent eFuse leakage. */ 1194 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 1195 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 1196 rsu_ms_delay(sc, 1); 1197 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 1198 1199 /* Read full ROM image. */ 1200 memset(&sc->rom, 0xff, sizeof(sc->rom)); 1201 while (addr < 512) { 1202 reg = rsu_efuse_read_1(sc, addr); 1203 if (reg == 0xff) 1204 break; 1205 addr++; 1206 off = reg >> 4; 1207 msk = reg & 0xf; 1208 for (i = 0; i < 4; i++) { 1209 if (msk & (1 << i)) 1210 continue; 1211 rom[off * 8 + i * 2 + 0] = 1212 rsu_efuse_read_1(sc, addr); 1213 addr++; 1214 rom[off * 8 + i * 2 + 1] = 1215 rsu_efuse_read_1(sc, addr); 1216 addr++; 1217 } 1218 } 1219#ifdef USB_DEBUG 1220 if (rsu_debug & RSU_DEBUG_RESET) { 1221 /* Dump ROM content. */ 1222 printf("\n"); 1223 for (i = 0; i < sizeof(sc->rom); i++) 1224 printf("%02x:", rom[i]); 1225 printf("\n"); 1226 } 1227#endif 1228 return (0); 1229} 1230 1231static int 1232rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 1233{ 1234 const uint8_t which = RSU_H2C_ENDPOINT; 1235 struct rsu_data *data; 1236 struct r92s_tx_desc *txd; 1237 struct r92s_fw_cmd_hdr *cmd; 1238 int cmdsz; 1239 int xferlen; 1240 1241 RSU_ASSERT_LOCKED(sc); 1242 1243 data = rsu_getbuf(sc); 1244 if (data == NULL) 1245 return (ENOMEM); 1246 1247 /* Blank the entire payload, just to be safe */ 1248 memset(data->buf, '\0', RSU_TXBUFSZ); 1249 1250 /* Round-up command length to a multiple of 8 bytes. */ 1251 /* XXX TODO: is this required? */ 1252 cmdsz = (len + 7) & ~7; 1253 1254 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 1255 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 1256 memset(data->buf, 0, xferlen); 1257 1258 /* Setup Tx descriptor. */ 1259 txd = (struct r92s_tx_desc *)data->buf; 1260 txd->txdw0 = htole32( 1261 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1262 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 1263 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1264 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 1265 1266 /* Setup command header. */ 1267 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 1268 cmd->len = htole16(cmdsz); 1269 cmd->code = code; 1270 cmd->seq = sc->cmd_seq; 1271 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 1272 1273 /* Copy command payload. */ 1274 memcpy(&cmd[1], buf, len); 1275 1276 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FWCMD, 1277 "%s: Tx cmd code=0x%x len=0x%x\n", 1278 __func__, code, cmdsz); 1279 data->buflen = xferlen; 1280 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 1281 usbd_transfer_start(sc->sc_xfer[which]); 1282 1283 return (0); 1284} 1285 1286/* ARGSUSED */ 1287static void 1288rsu_calib_task(void *arg, int pending __unused) 1289{ 1290 struct rsu_softc *sc = arg; 1291#ifdef notyet 1292 uint32_t reg; 1293#endif 1294 1295 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: running calibration task\n", 1296 __func__); 1297 1298 RSU_LOCK(sc); 1299#ifdef notyet 1300 /* Read WPS PBC status. */ 1301 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 1302 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 1303 rsu_write_1(sc, R92S_GPIO_IO_SEL, 1304 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 1305 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 1306 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 1307 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "WPS PBC is pushed\n"); 1308#endif 1309 /* Read current signal level. */ 1310 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 1311 sc->sc_currssi = rsu_read_4(sc, R92S_IOCMD_DATA); 1312 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: RSSI=%d (%d)\n", 1313 __func__, sc->sc_currssi, 1314 rsu_hwrssi_to_rssi(sc, sc->sc_currssi)); 1315 } 1316 if (sc->sc_calibrating) 1317 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1318 RSU_UNLOCK(sc); 1319} 1320 1321static void 1322rsu_tx_task(void *arg, int pending __unused) 1323{ 1324 struct rsu_softc *sc = arg; 1325 1326 RSU_LOCK(sc); 1327 _rsu_start(sc); 1328 RSU_UNLOCK(sc); 1329} 1330 1331#define RSU_PWR_UNKNOWN 0x0 1332#define RSU_PWR_ACTIVE 0x1 1333#define RSU_PWR_OFF 0x2 1334#define RSU_PWR_SLEEP 0x3 1335 1336/* 1337 * Set the current power state. 1338 * 1339 * The rtlwifi code doesn't do this so aggressively; it 1340 * waits for an idle period after association with 1341 * no traffic before doing this. 1342 * 1343 * For now - it's on in all states except RUN, and 1344 * in RUN it'll transition to allow sleep. 1345 */ 1346 1347struct r92s_pwr_cmd { 1348 uint8_t mode; 1349 uint8_t smart_ps; 1350 uint8_t bcn_pass_time; 1351}; 1352 1353static int 1354rsu_set_fw_power_state(struct rsu_softc *sc, int state) 1355{ 1356 struct r92s_set_pwr_mode cmd; 1357 //struct r92s_pwr_cmd cmd; 1358 int error; 1359 1360 RSU_ASSERT_LOCKED(sc); 1361 1362 /* only change state if required */ 1363 if (sc->sc_curpwrstate == state) 1364 return (0); 1365 1366 memset(&cmd, 0, sizeof(cmd)); 1367 1368 switch (state) { 1369 case RSU_PWR_ACTIVE: 1370 /* Force the hardware awake */ 1371 rsu_write_1(sc, R92S_USB_HRPWM, 1372 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 1373 cmd.mode = R92S_PS_MODE_ACTIVE; 1374 break; 1375 case RSU_PWR_SLEEP: 1376 cmd.mode = R92S_PS_MODE_DTIM; /* XXX configurable? */ 1377 cmd.smart_ps = 1; /* XXX 2 if doing p2p */ 1378 cmd.bcn_pass_time = 5; /* in 100mS usb.c, linux/rtlwifi */ 1379 break; 1380 case RSU_PWR_OFF: 1381 cmd.mode = R92S_PS_MODE_RADIOOFF; 1382 break; 1383 default: 1384 device_printf(sc->sc_dev, "%s: unknown ps mode (%d)\n", 1385 __func__, 1386 state); 1387 return (ENXIO); 1388 } 1389 1390 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1391 "%s: setting ps mode to %d (mode %d)\n", 1392 __func__, state, cmd.mode); 1393 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 1394 if (error == 0) 1395 sc->sc_curpwrstate = state; 1396 1397 return (error); 1398} 1399 1400static void 1401rsu_set_led(struct rsu_softc *sc, int on) 1402{ 1403 rsu_write_1(sc, R92S_LEDCFG, 1404 (rsu_read_1(sc, R92S_LEDCFG) & 0xf0) | (!on << 3)); 1405} 1406 1407static int 1408rsu_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, 1409 int arg) 1410{ 1411 struct ieee80211com *ic = vap->iv_ic; 1412 struct rsu_softc *sc = ic->ic_softc; 1413 struct rsu_vap *uvp = RSU_VAP(vap); 1414 1415 if (vap->iv_state != nstate) { 1416 IEEE80211_UNLOCK(ic); 1417 RSU_LOCK(sc); 1418 1419 switch (nstate) { 1420 case IEEE80211_S_INIT: 1421 sc->sc_vap_is_running = 0; 1422 rsu_set_led(sc, 0); 1423 break; 1424 case IEEE80211_S_RUN: 1425 sc->sc_vap_is_running = 1; 1426 rsu_set_led(sc, 1); 1427 break; 1428 default: 1429 /* NOTREACHED */ 1430 break; 1431 } 1432 rsu_rxfilter_refresh(sc); 1433 1434 RSU_UNLOCK(sc); 1435 IEEE80211_LOCK(ic); 1436 } 1437 1438 return (uvp->newstate(vap, nstate, arg)); 1439} 1440 1441static int 1442rsu_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1443{ 1444 struct rsu_vap *uvp = RSU_VAP(vap); 1445 struct ieee80211com *ic = vap->iv_ic; 1446 struct rsu_softc *sc = ic->ic_softc; 1447 struct ieee80211_node *ni; 1448 struct ieee80211_rateset *rs; 1449 enum ieee80211_state ostate; 1450 int error, startcal = 0; 1451 1452 ostate = vap->iv_state; 1453 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: %s -> %s\n", 1454 __func__, 1455 ieee80211_state_name[ostate], 1456 ieee80211_state_name[nstate]); 1457 1458 IEEE80211_UNLOCK(ic); 1459 if (ostate == IEEE80211_S_RUN) { 1460 RSU_LOCK(sc); 1461 /* Stop calibration. */ 1462 sc->sc_calibrating = 0; 1463 1464 /* Pause Tx for AC queues. */ 1465 rsu_write_1(sc, R92S_TXPAUSE, R92S_TXPAUSE_AC); 1466 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1467 1468 RSU_UNLOCK(sc); 1469 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 1470 taskqueue_drain(taskqueue_thread, &sc->tx_task); 1471 RSU_LOCK(sc); 1472 /* Disassociate from our current BSS. */ 1473 rsu_disconnect(sc); 1474 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1475 1476 /* Refresh Rx filter (may be modified by firmware). */ 1477 sc->sc_vap_is_running = 0; 1478 rsu_rxfilter_refresh(sc); 1479 1480 /* Reinstall static keys. */ 1481 if (sc->sc_running) 1482 rsu_reinit_static_keys(sc); 1483 } else 1484 RSU_LOCK(sc); 1485 switch (nstate) { 1486 case IEEE80211_S_INIT: 1487 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1488 break; 1489 case IEEE80211_S_AUTH: 1490 ni = ieee80211_ref_node(vap->iv_bss); 1491 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1492 error = rsu_join_bss(sc, ni); 1493 ieee80211_free_node(ni); 1494 if (error != 0) { 1495 device_printf(sc->sc_dev, 1496 "could not send join command\n"); 1497 } 1498 break; 1499 case IEEE80211_S_RUN: 1500 /* Flush all AC queues. */ 1501 rsu_write_1(sc, R92S_TXPAUSE, 0); 1502 1503 ni = ieee80211_ref_node(vap->iv_bss); 1504 rs = &ni->ni_rates; 1505 /* Indicate highest supported rate. */ 1506 ni->ni_txrate = rs->rs_rates[rs->rs_nrates - 1]; 1507 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1508 ieee80211_free_node(ni); 1509 startcal = 1; 1510 break; 1511 default: 1512 break; 1513 } 1514 if (startcal != 0) { 1515 sc->sc_calibrating = 1; 1516 /* Start periodic calibration. */ 1517 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, 1518 hz); 1519 } 1520 RSU_UNLOCK(sc); 1521 IEEE80211_LOCK(ic); 1522 return (uvp->newstate(vap, nstate, arg)); 1523} 1524 1525static int 1526rsu_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1527 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1528{ 1529 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1530 int is_checked = 0; 1531 1532 if (&vap->iv_nw_keys[0] <= k && 1533 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1534 *keyix = ieee80211_crypto_get_key_wepidx(vap, k); 1535 } else { 1536 if (vap->iv_opmode != IEEE80211_M_STA) { 1537 *keyix = 0; 1538 /* TODO: obtain keyix from node id */ 1539 is_checked = 1; 1540 k->wk_flags |= IEEE80211_KEY_SWCRYPT; 1541 } else 1542 *keyix = R92S_MACID_BSS; 1543 } 1544 1545 if (!is_checked) { 1546 RSU_LOCK(sc); 1547 if (isset(sc->keys_bmap, *keyix)) { 1548 device_printf(sc->sc_dev, 1549 "%s: key slot %d is already used!\n", 1550 __func__, *keyix); 1551 RSU_UNLOCK(sc); 1552 return (0); 1553 } 1554 setbit(sc->keys_bmap, *keyix); 1555 RSU_UNLOCK(sc); 1556 } 1557 1558 *rxkeyix = *keyix; 1559 1560 return (1); 1561} 1562 1563static int 1564rsu_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k, 1565 int set) 1566{ 1567 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1568 int ret; 1569 1570 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 1571 /* Not for us. */ 1572 return (1); 1573 } 1574 1575 /* Handle group keys. */ 1576 if (&vap->iv_nw_keys[0] <= k && 1577 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1578 KASSERT(k->wk_keyix < nitems(sc->group_keys), 1579 ("keyix %u > %zu\n", k->wk_keyix, nitems(sc->group_keys))); 1580 1581 RSU_LOCK(sc); 1582 sc->group_keys[k->wk_keyix] = (set ? k : NULL); 1583 if (!sc->sc_running) { 1584 /* Static keys will be set during device startup. */ 1585 RSU_UNLOCK(sc); 1586 return (1); 1587 } 1588 1589 if (set) 1590 ret = rsu_set_key_group(sc, k); 1591 else 1592 ret = rsu_delete_key(sc, k->wk_keyix); 1593 RSU_UNLOCK(sc); 1594 1595 return (!ret); 1596 } 1597 1598 if (set) { 1599 /* wait for pending key removal */ 1600 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 1601 1602 RSU_LOCK(sc); 1603 ret = rsu_set_key_pair(sc, k); 1604 RSU_UNLOCK(sc); 1605 } else { 1606 RSU_DELKEY_BMAP_LOCK(sc); 1607 setbit(sc->free_keys_bmap, k->wk_keyix); 1608 RSU_DELKEY_BMAP_UNLOCK(sc); 1609 1610 /* workaround ieee80211_node_delucastkey() locking */ 1611 taskqueue_enqueue(taskqueue_thread, &sc->del_key_task); 1612 ret = 0; /* fake success */ 1613 } 1614 1615 return (!ret); 1616} 1617 1618static int 1619rsu_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1620{ 1621 return (rsu_process_key(vap, k, 1)); 1622} 1623 1624static int 1625rsu_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1626{ 1627 return (rsu_process_key(vap, k, 0)); 1628} 1629 1630static int 1631rsu_cam_read(struct rsu_softc *sc, uint8_t addr, uint32_t *val) 1632{ 1633 int ntries; 1634 1635 rsu_write_4(sc, R92S_CAMCMD, 1636 R92S_CAMCMD_POLLING | SM(R92S_CAMCMD_ADDR, addr)); 1637 for (ntries = 0; ntries < 10; ntries++) { 1638 if (!(rsu_read_4(sc, R92S_CAMCMD) & R92S_CAMCMD_POLLING)) 1639 break; 1640 1641 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1642 } 1643 if (ntries == 10) { 1644 device_printf(sc->sc_dev, 1645 "%s: cannot read CAM entry at address %02X\n", 1646 __func__, addr); 1647 return (ETIMEDOUT); 1648 } 1649 1650 *val = rsu_read_4(sc, R92S_CAMREAD); 1651 1652 return (0); 1653} 1654 1655static void 1656rsu_cam_write(struct rsu_softc *sc, uint8_t addr, uint32_t data) 1657{ 1658 1659 rsu_write_4(sc, R92S_CAMWRITE, data); 1660 rsu_write_4(sc, R92S_CAMCMD, 1661 R92S_CAMCMD_POLLING | R92S_CAMCMD_WRITE | 1662 SM(R92S_CAMCMD_ADDR, addr)); 1663} 1664 1665static int 1666rsu_key_check(struct rsu_softc *sc, ieee80211_keyix keyix, int is_valid) 1667{ 1668 uint32_t val; 1669 int error, ntries; 1670 1671 for (ntries = 0; ntries < 20; ntries++) { 1672 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1673 1674 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1675 if (error != 0) { 1676 device_printf(sc->sc_dev, 1677 "%s: cannot check key status!\n", __func__); 1678 return (error); 1679 } 1680 if (((val & R92S_CAM_VALID) == 0) ^ is_valid) 1681 break; 1682 } 1683 if (ntries == 20) { 1684 device_printf(sc->sc_dev, 1685 "%s: key %d is %s marked as valid, rejecting request\n", 1686 __func__, keyix, is_valid ? "not" : "still"); 1687 return (EIO); 1688 } 1689 1690 return (0); 1691} 1692 1693/* 1694 * Map net80211 cipher to RTL8712 security mode. 1695 */ 1696static uint8_t 1697rsu_crypto_mode(struct rsu_softc *sc, u_int cipher, int keylen) 1698{ 1699 switch (cipher) { 1700 case IEEE80211_CIPHER_WEP: 1701 return keylen < 8 ? R92S_KEY_ALGO_WEP40 : R92S_KEY_ALGO_WEP104; 1702 case IEEE80211_CIPHER_TKIP: 1703 return R92S_KEY_ALGO_TKIP; 1704 case IEEE80211_CIPHER_AES_CCM: 1705 return R92S_KEY_ALGO_AES; 1706 default: 1707 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1708 return R92S_KEY_ALGO_INVALID; 1709 } 1710} 1711 1712static int 1713rsu_set_key_group(struct rsu_softc *sc, const struct ieee80211_key *k) 1714{ 1715 struct r92s_fw_cmd_set_key key; 1716 uint8_t algo; 1717 int error; 1718 1719 RSU_ASSERT_LOCKED(sc); 1720 1721 /* Map net80211 cipher to HW crypto algorithm. */ 1722 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1723 if (algo == R92S_KEY_ALGO_INVALID) 1724 return (EINVAL); 1725 1726 memset(&key, 0, sizeof(key)); 1727 key.algo = algo; 1728 key.cam_id = k->wk_keyix; 1729 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1730 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1731 1732 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1733 "%s: keyix %u, group %u, algo %u/%u, flags %04X, len %u, " 1734 "macaddr %s\n", __func__, key.cam_id, key.grpkey, 1735 k->wk_cipher->ic_cipher, key.algo, k->wk_flags, k->wk_keylen, 1736 ether_sprintf(k->wk_macaddr)); 1737 1738 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1739 if (error != 0) { 1740 device_printf(sc->sc_dev, 1741 "%s: cannot send firmware command, error %d\n", 1742 __func__, error); 1743 return (error); 1744 } 1745 1746 return (rsu_key_check(sc, k->wk_keyix, 1)); 1747} 1748 1749static int 1750rsu_set_key_pair(struct rsu_softc *sc, const struct ieee80211_key *k) 1751{ 1752 struct r92s_fw_cmd_set_key_mac key; 1753 uint8_t algo; 1754 int error; 1755 1756 RSU_ASSERT_LOCKED(sc); 1757 1758 if (!sc->sc_running) 1759 return (ESHUTDOWN); 1760 1761 /* Map net80211 cipher to HW crypto algorithm. */ 1762 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1763 if (algo == R92S_KEY_ALGO_INVALID) 1764 return (EINVAL); 1765 1766 memset(&key, 0, sizeof(key)); 1767 key.algo = algo; 1768 memcpy(key.macaddr, k->wk_macaddr, sizeof(key.macaddr)); 1769 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1770 1771 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1772 "%s: keyix %u, algo %u/%u, flags %04X, len %u, macaddr %s\n", 1773 __func__, k->wk_keyix, k->wk_cipher->ic_cipher, key.algo, 1774 k->wk_flags, k->wk_keylen, ether_sprintf(key.macaddr)); 1775 1776 error = rsu_fw_cmd(sc, R92S_CMD_SET_STA_KEY, &key, sizeof(key)); 1777 if (error != 0) { 1778 device_printf(sc->sc_dev, 1779 "%s: cannot send firmware command, error %d\n", 1780 __func__, error); 1781 return (error); 1782 } 1783 1784 return (rsu_key_check(sc, k->wk_keyix, 1)); 1785} 1786 1787static int 1788rsu_reinit_static_keys(struct rsu_softc *sc) 1789{ 1790 int i, error; 1791 1792 for (i = 0; i < nitems(sc->group_keys); i++) { 1793 if (sc->group_keys[i] != NULL) { 1794 error = rsu_set_key_group(sc, sc->group_keys[i]); 1795 if (error != 0) { 1796 device_printf(sc->sc_dev, 1797 "%s: failed to set static key %d, " 1798 "error %d\n", __func__, i, error); 1799 return (error); 1800 } 1801 } 1802 } 1803 1804 return (0); 1805} 1806 1807static int 1808rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix keyix) 1809{ 1810 struct r92s_fw_cmd_set_key key; 1811 uint32_t val; 1812 int error; 1813 1814 RSU_ASSERT_LOCKED(sc); 1815 1816 if (!sc->sc_running) 1817 return (0); 1818 1819 /* check if it was automatically removed by firmware */ 1820 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1821 if (error == 0 && (val & R92S_CAM_VALID) == 0) { 1822 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1823 "%s: key %u does not exist\n", __func__, keyix); 1824 clrbit(sc->keys_bmap, keyix); 1825 return (0); 1826 } 1827 1828 memset(&key, 0, sizeof(key)); 1829 key.cam_id = keyix; 1830 1831 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1832 "%s: removing key %u\n", __func__, key.cam_id); 1833 1834 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1835 if (error != 0) { 1836 device_printf(sc->sc_dev, 1837 "%s: cannot send firmware command, error %d\n", 1838 __func__, error); 1839 goto finish; 1840 } 1841 1842 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(5)); 1843 1844 /* 1845 * Clear 'valid' bit manually (cannot be done via firmware command). 1846 * Used for key check + when firmware command cannot be sent. 1847 */ 1848finish: 1849 rsu_cam_write(sc, R92S_CAM_CTL0(keyix), 0); 1850 1851 clrbit(sc->keys_bmap, keyix); 1852 1853 return (rsu_key_check(sc, keyix, 0)); 1854} 1855 1856static void 1857rsu_delete_key_pair_cb(void *arg, int pending __unused) 1858{ 1859 struct rsu_softc *sc = arg; 1860 int i; 1861 1862 RSU_DELKEY_BMAP_LOCK(sc); 1863 for (i = IEEE80211_WEP_NKID; i < R92S_CAM_ENTRY_LIMIT; i++) { 1864 if (isset(sc->free_keys_bmap, i)) { 1865 RSU_DELKEY_BMAP_UNLOCK(sc); 1866 1867 RSU_LOCK(sc); 1868 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1869 "%s: calling rsu_delete_key() with keyix = %d\n", 1870 __func__, i); 1871 (void) rsu_delete_key(sc, i); 1872 RSU_UNLOCK(sc); 1873 1874 RSU_DELKEY_BMAP_LOCK(sc); 1875 clrbit(sc->free_keys_bmap, i); 1876 1877 /* bmap can be changed */ 1878 i = IEEE80211_WEP_NKID - 1; 1879 continue; 1880 } 1881 } 1882 RSU_DELKEY_BMAP_UNLOCK(sc); 1883} 1884 1885static int 1886rsu_site_survey(struct rsu_softc *sc, struct ieee80211_scan_ssid *ssid) 1887{ 1888 struct r92s_fw_cmd_sitesurvey cmd; 1889 1890 RSU_ASSERT_LOCKED(sc); 1891 1892 memset(&cmd, 0, sizeof(cmd)); 1893 /* TODO: passive channels? */ 1894 if (sc->sc_active_scan) 1895 cmd.active = htole32(1); 1896 cmd.limit = htole32(48); 1897 1898 if (ssid != NULL) { 1899 sc->sc_extra_scan = 1; 1900 cmd.ssidlen = htole32(ssid->len); 1901 memcpy(cmd.ssid, ssid->ssid, ssid->len); 1902 } 1903#ifdef USB_DEBUG 1904 if (rsu_debug & (RSU_DEBUG_SCAN | RSU_DEBUG_FWCMD)) { 1905 device_printf(sc->sc_dev, 1906 "sending site survey command, active %d", 1907 le32toh(cmd.active)); 1908 if (ssid != NULL) { 1909 printf(", ssid: "); 1910 ieee80211_print_essid(cmd.ssid, le32toh(cmd.ssidlen)); 1911 } 1912 printf("\n"); 1913 } 1914#endif 1915 return (rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd))); 1916} 1917 1918static int 1919rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1920{ 1921 struct ieee80211com *ic = &sc->sc_ic; 1922 struct ieee80211vap *vap = ni->ni_vap; 1923 struct ndis_wlan_bssid_ex *bss; 1924 struct ndis_802_11_fixed_ies *fixed; 1925 struct r92s_fw_cmd_auth auth; 1926 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1927 uint8_t *frm; 1928 uint8_t opmode; 1929 int error; 1930 1931 RSU_ASSERT_LOCKED(sc); 1932 1933 /* Let the FW decide the opmode based on the capinfo field. */ 1934 opmode = NDIS802_11AUTOUNKNOWN; 1935 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1936 "%s: setting operating mode to %d\n", 1937 __func__, opmode); 1938 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1939 if (error != 0) 1940 return (error); 1941 1942 memset(&auth, 0, sizeof(auth)); 1943 if (vap->iv_flags & IEEE80211_F_WPA) { 1944 auth.mode = R92S_AUTHMODE_WPA; 1945 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1946 } else 1947 auth.mode = R92S_AUTHMODE_OPEN; 1948 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1949 "%s: setting auth mode to %d\n", 1950 __func__, auth.mode); 1951 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1952 if (error != 0) 1953 return (error); 1954 1955 memset(buf, 0, sizeof(buf)); 1956 bss = (struct ndis_wlan_bssid_ex *)buf; 1957 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1958 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1959 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1960 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1961 bss->privacy = htole32(1); 1962 bss->rssi = htole32(ni->ni_avgrssi); 1963 if (ic->ic_curmode == IEEE80211_MODE_11B) 1964 bss->networktype = htole32(NDIS802_11DS); 1965 else 1966 bss->networktype = htole32(NDIS802_11OFDM24); 1967 bss->config.len = htole32(sizeof(bss->config)); 1968 bss->config.bintval = htole32(ni->ni_intval); 1969 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1970 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1971 /* XXX verify how this is supposed to look! */ 1972 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1973 ni->ni_rates.rs_nrates); 1974 /* Write the fixed fields of the beacon frame. */ 1975 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1976 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1977 fixed->bintval = htole16(ni->ni_intval); 1978 fixed->capabilities = htole16(ni->ni_capinfo); 1979 /* Write IEs to be included in the association request. */ 1980 frm = (uint8_t *)&fixed[1]; 1981 frm = ieee80211_add_rsn(frm, vap); 1982 frm = ieee80211_add_wpa(frm, vap); 1983 frm = ieee80211_add_qos(frm, ni); 1984 if ((ic->ic_flags & IEEE80211_F_WME) && 1985 (ni->ni_ies.wme_ie != NULL)) 1986 frm = ieee80211_add_wme_info(frm, &ic->ic_wme, ni); 1987 if (ni->ni_flags & IEEE80211_NODE_HT) { 1988 frm = ieee80211_add_htcap(frm, ni); 1989 frm = ieee80211_add_htinfo(frm, ni); 1990 } 1991 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1992 bss->len = htole32(((frm - buf) + 3) & ~3); 1993 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 1994 "%s: sending join bss command to %s chan %d\n", 1995 __func__, 1996 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 1997 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 1998} 1999 2000static int 2001rsu_disconnect(struct rsu_softc *sc) 2002{ 2003 uint32_t zero = 0; /* :-) */ 2004 2005 /* Disassociate from our current BSS. */ 2006 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2007 "%s: sending disconnect command\n", __func__); 2008 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 2009} 2010 2011/* 2012 * Map the hardware provided RSSI value to a signal level. 2013 * For the most part it's just something we divide by and cap 2014 * so it doesn't overflow the representation by net80211. 2015 */ 2016static int 2017rsu_hwrssi_to_rssi(struct rsu_softc *sc, int hw_rssi) 2018{ 2019 int v; 2020 2021 if (hw_rssi == 0) 2022 return (0); 2023 v = hw_rssi >> 4; 2024 if (v > 80) 2025 v = 80; 2026 return (v); 2027} 2028 2029CTASSERT(MCLBYTES > sizeof(struct ieee80211_frame)); 2030 2031static void 2032rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 2033{ 2034 struct ieee80211com *ic = &sc->sc_ic; 2035 struct ieee80211_frame *wh; 2036 struct ndis_wlan_bssid_ex *bss; 2037 struct ieee80211_rx_stats rxs; 2038 struct mbuf *m; 2039 uint32_t ieslen; 2040 uint32_t pktlen; 2041 2042 if (__predict_false(len < sizeof(*bss))) 2043 return; 2044 bss = (struct ndis_wlan_bssid_ex *)buf; 2045 ieslen = le32toh(bss->ieslen); 2046 /* range check length of information element */ 2047 if (__predict_false(ieslen > (uint32_t)(len - sizeof(*bss)))) 2048 return; 2049 2050 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2051 "%s: found BSS %s: len=%d chan=%d inframode=%d " 2052 "networktype=%d privacy=%d, RSSI=%d\n", 2053 __func__, 2054 ether_sprintf(bss->macaddr), ieslen, 2055 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 2056 le32toh(bss->networktype), le32toh(bss->privacy), 2057 le32toh(bss->rssi)); 2058 2059 /* Build a fake beacon frame to let net80211 do all the parsing. */ 2060 /* XXX TODO: just call the new scan API methods! */ 2061 if (__predict_false(ieslen > (size_t)(MCLBYTES - sizeof(*wh)))) 2062 return; 2063 pktlen = sizeof(*wh) + ieslen; 2064 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2065 if (__predict_false(m == NULL)) 2066 return; 2067 wh = mtod(m, struct ieee80211_frame *); 2068 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2069 IEEE80211_FC0_SUBTYPE_BEACON; 2070 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2071 USETW(wh->i_dur, 0); 2072 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 2073 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 2074 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 2075 *(uint16_t *)wh->i_seq = 0; 2076 memcpy(&wh[1], (uint8_t *)&bss[1], ieslen); 2077 2078 /* Finalize mbuf. */ 2079 m->m_pkthdr.len = m->m_len = pktlen; 2080 2081 /* Set channel flags for input path */ 2082 bzero(&rxs, sizeof(rxs)); 2083 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 2084 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2085 rxs.c_ieee = le32toh(bss->config.dsconfig); 2086 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 2087 /* This is a number from 0..100; so let's just divide it down a bit */ 2088 rxs.c_rssi = le32toh(bss->rssi) / 2; 2089 rxs.c_nf = -96; 2090 if (ieee80211_add_rx_params(m, &rxs) == 0) 2091 return; 2092 2093 /* XXX avoid a LOR */ 2094 RSU_UNLOCK(sc); 2095 ieee80211_input_mimo_all(ic, m); 2096 RSU_LOCK(sc); 2097} 2098 2099static void 2100rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 2101{ 2102 struct ieee80211com *ic = &sc->sc_ic; 2103 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2104 struct ieee80211_node *ni = vap->iv_bss; 2105 struct r92s_event_join_bss *rsp; 2106 uint32_t tmp; 2107 int res; 2108 2109 if (__predict_false(len < sizeof(*rsp))) 2110 return; 2111 rsp = (struct r92s_event_join_bss *)buf; 2112 res = (int)le32toh(rsp->join_res); 2113 2114 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2115 "%s: Rx join BSS event len=%d res=%d\n", 2116 __func__, len, res); 2117 2118 /* 2119 * XXX Don't do this; there's likely a better way to tell 2120 * the caller we failed. 2121 */ 2122 if (res <= 0) { 2123 RSU_UNLOCK(sc); 2124 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2125 RSU_LOCK(sc); 2126 return; 2127 } 2128 2129 tmp = le32toh(rsp->associd); 2130 if (tmp >= vap->iv_max_aid) { 2131 RSU_DPRINTF(sc, RSU_DEBUG_ANY, "Assoc ID overflow\n"); 2132 tmp = 1; 2133 } 2134 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2135 "%s: associated with %s associd=%d\n", 2136 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 2137 /* XXX is this required? What's the top two bits for again? */ 2138 ni->ni_associd = tmp | 0xc000; 2139 2140 /* Refresh Rx filter (was changed by firmware). */ 2141 sc->sc_vap_is_running = 1; 2142 rsu_rxfilter_refresh(sc); 2143 2144 RSU_UNLOCK(sc); 2145 ieee80211_new_state(vap, IEEE80211_S_RUN, 2146 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 2147 RSU_LOCK(sc); 2148} 2149 2150static void 2151rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 2152{ 2153 struct ieee80211com *ic = &sc->sc_ic; 2154 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2155 struct r92s_add_ba_event *ba = (void *) buf; 2156 struct ieee80211_node *ni; 2157 2158 if (len < sizeof(*ba)) { 2159 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 2160 return; 2161 } 2162 2163 if (vap == NULL) 2164 return; 2165 2166 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: mac=%s, tid=%d, ssn=%d\n", 2167 __func__, 2168 ether_sprintf(ba->mac_addr), 2169 (int) ba->tid, 2170 (int) le16toh(ba->ssn)); 2171 2172 /* XXX do node lookup; this is STA specific */ 2173 2174 ni = ieee80211_ref_node(vap->iv_bss); 2175 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 2176 ieee80211_free_node(ni); 2177} 2178 2179static void 2180rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 2181{ 2182 struct ieee80211com *ic = &sc->sc_ic; 2183 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2184 2185 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2186 "%s: Rx event code=%d len=%d\n", __func__, code, len); 2187 switch (code) { 2188 case R92S_EVT_SURVEY: 2189 rsu_event_survey(sc, buf, len); 2190 break; 2191 case R92S_EVT_SURVEY_DONE: 2192 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2193 "%s: %s scan done, found %d BSS\n", 2194 __func__, sc->sc_extra_scan ? "direct" : "broadcast", 2195 le32toh(*(uint32_t *)buf)); 2196 if (sc->sc_extra_scan == 1) { 2197 /* Send broadcast probe request. */ 2198 sc->sc_extra_scan = 0; 2199 if (vap != NULL && rsu_site_survey(sc, NULL) != 0) { 2200 RSU_UNLOCK(sc); 2201 ieee80211_cancel_scan(vap); 2202 RSU_LOCK(sc); 2203 } 2204 break; 2205 } 2206 if (vap != NULL) { 2207 RSU_UNLOCK(sc); 2208 ieee80211_scan_done(vap); 2209 RSU_LOCK(sc); 2210 } 2211 break; 2212 case R92S_EVT_JOIN_BSS: 2213 if (vap->iv_state == IEEE80211_S_AUTH) 2214 rsu_event_join_bss(sc, buf, len); 2215 break; 2216 case R92S_EVT_DEL_STA: 2217 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 2218 "%s: disassociated from %s\n", __func__, 2219 ether_sprintf(buf)); 2220 if (vap->iv_state == IEEE80211_S_RUN && 2221 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 2222 RSU_UNLOCK(sc); 2223 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2224 RSU_LOCK(sc); 2225 } 2226 break; 2227 case R92S_EVT_WPS_PBC: 2228 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2229 "%s: WPS PBC pushed.\n", __func__); 2230 break; 2231 case R92S_EVT_FWDBG: 2232 buf[60] = '\0'; 2233 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 2234 break; 2235 case R92S_EVT_ADDBA_REQ_REPORT: 2236 rsu_event_addba_req_report(sc, buf, len); 2237 break; 2238 default: 2239 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 2240 break; 2241 } 2242} 2243 2244static void 2245rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 2246{ 2247 struct r92s_fw_cmd_hdr *cmd; 2248 int cmdsz; 2249 2250 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 2251 2252 /* Skip Rx status. */ 2253 buf += sizeof(struct r92s_rx_stat); 2254 len -= sizeof(struct r92s_rx_stat); 2255 2256 /* Process all events. */ 2257 for (;;) { 2258 /* Check that command header fits. */ 2259 if (__predict_false(len < sizeof(*cmd))) 2260 break; 2261 cmd = (struct r92s_fw_cmd_hdr *)buf; 2262 /* Check that command payload fits. */ 2263 cmdsz = le16toh(cmd->len); 2264 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 2265 break; 2266 2267 /* Process firmware event. */ 2268 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 2269 2270 if (!(cmd->seq & R92S_FW_CMD_MORE)) 2271 break; 2272 buf += sizeof(*cmd) + cmdsz; 2273 len -= sizeof(*cmd) + cmdsz; 2274 } 2275} 2276 2277static int8_t 2278rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 2279{ 2280 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 2281 struct r92s_rx_phystat *phy; 2282 struct r92s_rx_cck *cck; 2283 uint8_t rpt; 2284 int8_t rssi; 2285 2286 if (rate <= 3) { 2287 cck = (struct r92s_rx_cck *)physt; 2288 rpt = (cck->agc_rpt >> 6) & 0x3; 2289 rssi = cck->agc_rpt & 0x3e; 2290 rssi = cckoff[rpt] - rssi; 2291 } else { /* OFDM/HT. */ 2292 phy = (struct r92s_rx_phystat *)physt; 2293 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 2294 } 2295 return (rssi); 2296} 2297 2298static struct mbuf * 2299rsu_rx_copy_to_mbuf(struct rsu_softc *sc, struct r92s_rx_stat *stat, 2300 int totlen) 2301{ 2302 struct ieee80211com *ic = &sc->sc_ic; 2303 struct mbuf *m; 2304 uint32_t rxdw0; 2305 int pktlen; 2306 2307 rxdw0 = le32toh(stat->rxdw0); 2308 if (__predict_false(rxdw0 & (R92S_RXDW0_CRCERR | R92S_RXDW0_ICVERR))) { 2309 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2310 "%s: RX flags error (%s)\n", __func__, 2311 rxdw0 & R92S_RXDW0_CRCERR ? "CRC" : "ICV"); 2312 goto fail; 2313 } 2314 2315 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2316 if (__predict_false(pktlen < sizeof (struct ieee80211_frame_ack))) { 2317 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2318 "%s: frame is too short: %d\n", __func__, pktlen); 2319 goto fail; 2320 } 2321 2322 m = m_get2(totlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2323 if (__predict_false(m == NULL)) { 2324 device_printf(sc->sc_dev, 2325 "%s: could not allocate RX mbuf, totlen %d\n", 2326 __func__, totlen); 2327 goto fail; 2328 } 2329 2330 /* Finalize mbuf. */ 2331 memcpy(mtod(m, uint8_t *), (uint8_t *)stat, totlen); 2332 m->m_pkthdr.len = m->m_len = totlen; 2333 2334 return (m); 2335fail: 2336 counter_u64_add(ic->ic_ierrors, 1); 2337 return (NULL); 2338} 2339 2340static uint32_t 2341rsu_get_tsf_low(struct rsu_softc *sc) 2342{ 2343 return (rsu_read_4(sc, R92S_TSFTR)); 2344} 2345 2346static uint32_t 2347rsu_get_tsf_high(struct rsu_softc *sc) 2348{ 2349 return (rsu_read_4(sc, R92S_TSFTR + 4)); 2350} 2351 2352static struct ieee80211_node * 2353rsu_rx_frame(struct rsu_softc *sc, struct mbuf *m) 2354{ 2355 struct ieee80211com *ic = &sc->sc_ic; 2356 struct ieee80211_frame_min *wh; 2357 struct ieee80211_rx_stats rxs; 2358 struct r92s_rx_stat *stat; 2359 uint32_t rxdw0, rxdw3; 2360 uint8_t cipher, rate; 2361 int infosz; 2362 int rssi; 2363 2364 stat = mtod(m, struct r92s_rx_stat *); 2365 rxdw0 = le32toh(stat->rxdw0); 2366 rxdw3 = le32toh(stat->rxdw3); 2367 2368 rate = MS(rxdw3, R92S_RXDW3_RATE); 2369 cipher = MS(rxdw0, R92S_RXDW0_CIPHER); 2370 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2371 2372 /* Get RSSI from PHY status descriptor if present. */ 2373 if (infosz != 0 && (rxdw0 & R92S_RXDW0_PHYST)) 2374 rssi = rsu_get_rssi(sc, rate, &stat[1]); 2375 else { 2376 /* Cheat and get the last calibrated RSSI */ 2377 rssi = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 2378 } 2379 2380 /* Hardware does Rx TCP checksum offload. */ 2381 /* 2382 * This flag can be set for some other 2383 * (e.g., EAPOL) frame types, so don't rely on it. 2384 */ 2385 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 2386 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2387 "%s: TCP/IP checksums: %schecked / %schecked\n", 2388 __func__, 2389 (rxdw3 & R92S_RXDW3_TCPCHKRPT) ? "" : "not ", 2390 (rxdw3 & R92S_RXDW3_IPCHKRPT) ? "" : "not "); 2391 2392 /* 2393 * 'IP header checksum valid' bit will not be set if 2394 * the frame was not checked / has incorrect checksum / 2395 * does not have checksum (IPv6). 2396 * 2397 * NB: if DF bit is not set then frame will not be checked. 2398 */ 2399 if (rxdw3 & R92S_RXDW3_IPCHKRPT) { 2400 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2401 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2402 } 2403 2404 /* 2405 * This is independent of the above check. 2406 */ 2407 if (rxdw3 & R92S_RXDW3_TCPCHKRPT) { 2408 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 2409 m->m_pkthdr.csum_flags |= CSUM_PSEUDO_HDR; 2410 m->m_pkthdr.csum_data = 0xffff; 2411 } 2412 } 2413 2414 /* RX flags */ 2415 2416 /* Set channel flags for input path */ 2417 bzero(&rxs, sizeof(rxs)); 2418 2419 /* normal RSSI */ 2420 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2421 rxs.c_rssi = rssi; 2422 rxs.c_nf = -96; 2423 2424 /* Rate */ 2425 if (rate < 12) { 2426 rxs.c_rate = ridx2rate[rate]; 2427 if (RSU_RATE_IS_CCK(rate)) 2428 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2429 else 2430 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2431 } else { 2432 rxs.c_rate = IEEE80211_RATE_MCS | (rate - 12); 2433 rxs.c_pktflags |= IEEE80211_RX_F_HT; 2434 } 2435 2436 if (ieee80211_radiotap_active(ic)) { 2437 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 2438 2439 /* Map HW rate index to 802.11 rate. */ 2440 tap->wr_flags = 0; /* TODO */ 2441 tap->wr_tsft = rsu_get_tsf_high(sc); 2442 if (le32toh(stat->tsf_low) > rsu_get_tsf_low(sc)) 2443 tap->wr_tsft--; 2444 tap->wr_tsft = (uint64_t)htole32(tap->wr_tsft) << 32; 2445 tap->wr_tsft += stat->tsf_low; 2446 2447 tap->wr_rate = rxs.c_rate; 2448 tap->wr_dbm_antsignal = rssi; 2449 }; 2450 2451 (void) ieee80211_add_rx_params(m, &rxs); 2452 2453 /* Drop descriptor. */ 2454 m_adj(m, sizeof(*stat) + infosz); 2455 wh = mtod(m, struct ieee80211_frame_min *); 2456 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 2457 cipher != R92S_KEY_ALGO_NONE) { 2458 m->m_flags |= M_WEP; 2459 } 2460 2461 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2462 "%s: Rx frame len %d, rate %d, infosz %d\n", 2463 __func__, m->m_len, rate, infosz); 2464 2465 if (m->m_len >= sizeof(*wh)) 2466 return (ieee80211_find_rxnode(ic, wh)); 2467 2468 return (NULL); 2469} 2470 2471static struct mbuf * 2472rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 2473{ 2474 struct r92s_rx_stat *stat; 2475 uint32_t rxdw0; 2476 int totlen, pktlen, infosz, npkts; 2477 struct mbuf *m, *m0 = NULL, *prevm = NULL; 2478 2479 /* 2480 * don't pass packets to the ieee80211 framework if the driver isn't 2481 * RUNNING. 2482 */ 2483 if (!sc->sc_running) 2484 return (NULL); 2485 2486 /* Get the number of encapsulated frames. */ 2487 stat = (struct r92s_rx_stat *)buf; 2488 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 2489 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2490 "%s: Rx %d frames in one chunk\n", __func__, npkts); 2491 2492 /* Process all of them. */ 2493 while (npkts-- > 0) { 2494 if (__predict_false(len < sizeof(*stat))) 2495 break; 2496 stat = (struct r92s_rx_stat *)buf; 2497 rxdw0 = le32toh(stat->rxdw0); 2498 2499 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2500 if (__predict_false(pktlen == 0)) 2501 break; 2502 2503 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2504 2505 /* Make sure everything fits in xfer. */ 2506 totlen = sizeof(*stat) + infosz + pktlen; 2507 if (__predict_false(totlen > len)) 2508 break; 2509 2510 /* Process 802.11 frame. */ 2511 m = rsu_rx_copy_to_mbuf(sc, stat, totlen); 2512 if (m0 == NULL) 2513 m0 = m; 2514 if (prevm == NULL) 2515 prevm = m; 2516 else { 2517 prevm->m_next = m; 2518 prevm = m; 2519 } 2520 /* Next chunk is 128-byte aligned. */ 2521 totlen = (totlen + 127) & ~127; 2522 buf += totlen; 2523 len -= totlen; 2524 } 2525 2526 return (m0); 2527} 2528 2529static struct mbuf * 2530rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data) 2531{ 2532 struct rsu_softc *sc = data->sc; 2533 struct ieee80211com *ic = &sc->sc_ic; 2534 struct r92s_rx_stat *stat; 2535 int len; 2536 2537 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 2538 2539 if (__predict_false(len < sizeof(*stat))) { 2540 RSU_DPRINTF(sc, RSU_DEBUG_RX, "xfer too short %d\n", len); 2541 counter_u64_add(ic->ic_ierrors, 1); 2542 return (NULL); 2543 } 2544 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 2545 stat = (struct r92s_rx_stat *)data->buf; 2546 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 2547 rsu_rx_multi_event(sc, data->buf, len); 2548 /* No packets to process. */ 2549 return (NULL); 2550 } else 2551 return (rsu_rx_multi_frame(sc, data->buf, len)); 2552} 2553 2554static void 2555rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 2556{ 2557 struct epoch_tracker et; 2558 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2559 struct ieee80211com *ic = &sc->sc_ic; 2560 struct ieee80211_node *ni; 2561 struct mbuf *m = NULL, *next; 2562 struct rsu_data *data; 2563 2564 RSU_ASSERT_LOCKED(sc); 2565 2566 switch (USB_GET_STATE(xfer)) { 2567 case USB_ST_TRANSFERRED: 2568 data = STAILQ_FIRST(&sc->sc_rx_active); 2569 if (data == NULL) 2570 goto tr_setup; 2571 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2572 m = rsu_rxeof(xfer, data); 2573 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2574 /* FALLTHROUGH */ 2575 case USB_ST_SETUP: 2576tr_setup: 2577 data = STAILQ_FIRST(&sc->sc_rx_inactive); 2578 if (data == NULL) { 2579 KASSERT(m == NULL, ("mbuf isn't NULL")); 2580 return; 2581 } 2582 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 2583 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 2584 usbd_xfer_set_frame_data(xfer, 0, data->buf, 2585 usbd_xfer_max_len(xfer)); 2586 usbd_transfer_submit(xfer); 2587 /* 2588 * To avoid LOR we should unlock our private mutex here to call 2589 * ieee80211_input() because here is at the end of a USB 2590 * callback and safe to unlock. 2591 */ 2592 NET_EPOCH_ENTER(et); 2593 while (m != NULL) { 2594 next = m->m_next; 2595 m->m_next = NULL; 2596 2597 ni = rsu_rx_frame(sc, m); 2598 RSU_UNLOCK(sc); 2599 2600 if (ni != NULL) { 2601 if (ni->ni_flags & IEEE80211_NODE_HT) 2602 m->m_flags |= M_AMPDU; 2603 (void)ieee80211_input_mimo(ni, m); 2604 ieee80211_free_node(ni); 2605 } else 2606 (void)ieee80211_input_mimo_all(ic, m); 2607 2608 RSU_LOCK(sc); 2609 m = next; 2610 } 2611 NET_EPOCH_EXIT(et); 2612 break; 2613 default: 2614 /* needs it to the inactive queue due to a error. */ 2615 data = STAILQ_FIRST(&sc->sc_rx_active); 2616 if (data != NULL) { 2617 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2618 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2619 } 2620 if (error != USB_ERR_CANCELLED) { 2621 usbd_xfer_set_stall(xfer); 2622 counter_u64_add(ic->ic_ierrors, 1); 2623 goto tr_setup; 2624 } 2625 break; 2626 } 2627 2628} 2629 2630static void 2631rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 2632{ 2633#ifdef USB_DEBUG 2634 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2635#endif 2636 2637 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 2638 __func__, 2639 data); 2640 2641 if (data->m) { 2642 /* XXX status? */ 2643 ieee80211_tx_complete(data->ni, data->m, 0); 2644 data->m = NULL; 2645 data->ni = NULL; 2646 } 2647} 2648 2649static void 2650rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 2651 uint8_t which) 2652{ 2653 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2654 struct ieee80211com *ic = &sc->sc_ic; 2655 struct rsu_data *data; 2656 2657 RSU_ASSERT_LOCKED(sc); 2658 2659 switch (USB_GET_STATE(xfer)) { 2660 case USB_ST_TRANSFERRED: 2661 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2662 if (data == NULL) 2663 goto tr_setup; 2664 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 2665 __func__, data); 2666 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2667 rsu_txeof(xfer, data); 2668 rsu_freebuf(sc, data); 2669 /* FALLTHROUGH */ 2670 case USB_ST_SETUP: 2671tr_setup: 2672 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 2673 if (data == NULL) { 2674 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2675 "%s: empty pending queue sc %p\n", __func__, sc); 2676 return; 2677 } 2678 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 2679 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 2680 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 2681 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2682 "%s: submitting transfer %p\n", 2683 __func__, 2684 data); 2685 usbd_transfer_submit(xfer); 2686 break; 2687 default: 2688 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2689 if (data != NULL) { 2690 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2691 rsu_txeof(xfer, data); 2692 rsu_freebuf(sc, data); 2693 } 2694 counter_u64_add(ic->ic_oerrors, 1); 2695 2696 if (error != USB_ERR_CANCELLED) { 2697 usbd_xfer_set_stall(xfer); 2698 goto tr_setup; 2699 } 2700 break; 2701 } 2702 2703 /* 2704 * XXX TODO: if the queue is low, flush out FF TX frames. 2705 * Remember to unlock the driver for now; net80211 doesn't 2706 * defer it for us. 2707 */ 2708} 2709 2710static void 2711rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 2712{ 2713 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2714 2715 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 2716 2717 /* This kicks the TX taskqueue */ 2718 rsu_start(sc); 2719} 2720 2721static void 2722rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 2723{ 2724 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2725 2726 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 2727 2728 /* This kicks the TX taskqueue */ 2729 rsu_start(sc); 2730} 2731 2732static void 2733rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2734{ 2735 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2736 2737 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2738 2739 /* This kicks the TX taskqueue */ 2740 rsu_start(sc); 2741} 2742 2743/* 2744 * Transmit the given frame. 2745 * 2746 * This doesn't free the node or mbuf upon failure. 2747 */ 2748static int 2749rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2750 struct mbuf *m0, struct rsu_data *data) 2751{ 2752 const struct ieee80211_txparam *tp = ni->ni_txparms; 2753 struct ieee80211vap *vap = ni->ni_vap; 2754 struct ieee80211_frame *wh; 2755 struct ieee80211_key *k = NULL; 2756 struct r92s_tx_desc *txd; 2757 uint8_t rate, ridx, type, cipher, qos; 2758 int prio = 0; 2759 uint8_t which; 2760 int hasqos; 2761 int ismcast; 2762 int xferlen; 2763 int qid; 2764 2765 RSU_ASSERT_LOCKED(sc); 2766 2767 wh = mtod(m0, struct ieee80211_frame *); 2768 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2769 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 2770 2771 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2772 __func__, data, m0); 2773 2774 /* Choose a TX rate index. */ 2775 if (type == IEEE80211_FC0_TYPE_MGT || 2776 type == IEEE80211_FC0_TYPE_CTL || 2777 (m0->m_flags & M_EAPOL) != 0) 2778 rate = tp->mgmtrate; 2779 else if (ismcast) 2780 rate = tp->mcastrate; 2781 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 2782 rate = tp->ucastrate; 2783 else 2784 rate = 0; 2785 2786 if (rate != 0) 2787 ridx = rate2ridx(rate); 2788 2789 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2790 k = ieee80211_crypto_encap(ni, m0); 2791 if (k == NULL) { 2792 device_printf(sc->sc_dev, 2793 "ieee80211_crypto_encap returns NULL.\n"); 2794 /* XXX we don't expect the fragmented frames */ 2795 return (ENOBUFS); 2796 } 2797 wh = mtod(m0, struct ieee80211_frame *); 2798 } 2799 /* If we have QoS then use it */ 2800 /* XXX TODO: mbuf WME/PRI versus TID? */ 2801 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2802 /* Has QoS */ 2803 prio = M_WME_GETAC(m0); 2804 which = rsu_wme_ac_xfer_map[prio]; 2805 hasqos = 1; 2806 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 2807 } else { 2808 /* Non-QoS TID */ 2809 /* XXX TODO: tid=0 for non-qos TID? */ 2810 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2811 hasqos = 0; 2812 prio = 0; 2813 qos = 0; 2814 } 2815 2816 qid = rsu_ac2qid[prio]; 2817#if 0 2818 switch (type) { 2819 case IEEE80211_FC0_TYPE_CTL: 2820 case IEEE80211_FC0_TYPE_MGT: 2821 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2822 break; 2823 default: 2824 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2825 break; 2826 } 2827 hasqos = 0; 2828#endif 2829 2830 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2831 __func__, 2832 prio, 2833 which, 2834 hasqos); 2835 2836 /* Fill Tx descriptor. */ 2837 txd = (struct r92s_tx_desc *)data->buf; 2838 memset(txd, 0, sizeof(*txd)); 2839 2840 txd->txdw0 |= htole32( 2841 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2842 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2843 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2844 2845 txd->txdw1 |= htole32( 2846 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2847 if (!hasqos) 2848 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2849 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWENCRYPT)) { 2850 switch (k->wk_cipher->ic_cipher) { 2851 case IEEE80211_CIPHER_WEP: 2852 cipher = R92S_TXDW1_CIPHER_WEP; 2853 break; 2854 case IEEE80211_CIPHER_TKIP: 2855 cipher = R92S_TXDW1_CIPHER_TKIP; 2856 break; 2857 case IEEE80211_CIPHER_AES_CCM: 2858 cipher = R92S_TXDW1_CIPHER_AES; 2859 break; 2860 default: 2861 cipher = R92S_TXDW1_CIPHER_NONE; 2862 } 2863 txd->txdw1 |= htole32( 2864 SM(R92S_TXDW1_CIPHER, cipher) | 2865 SM(R92S_TXDW1_KEYIDX, k->wk_keyix)); 2866 } 2867 /* XXX todo: set AGGEN bit if appropriate? */ 2868 txd->txdw2 |= htole32(R92S_TXDW2_BK); 2869 if (ismcast) 2870 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2871 2872 if (!ismcast && (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 2873 IEEE80211_QOS_ACKPOLICY_NOACK)) { 2874 txd->txdw2 |= htole32(R92S_TXDW2_RTY_LMT_ENA); 2875 txd->txdw2 |= htole32(SM(R92S_TXDW2_RTY_LMT, tp->maxretry)); 2876 } 2877 2878 /* Force mgmt / mcast / ucast rate if needed. */ 2879 if (rate != 0) { 2880 /* Data rate fallback limit (max). */ 2881 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE_FB_LMT, 0x1f)); 2882 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE, ridx)); 2883 txd->txdw4 |= htole32(R92S_TXDW4_DRVRATE); 2884 } 2885 2886 /* 2887 * Firmware will use and increment the sequence number for the 2888 * specified priority. 2889 */ 2890 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2891 2892 if (ieee80211_radiotap_active_vap(vap)) { 2893 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2894 2895 tap->wt_flags = 0; 2896 ieee80211_radiotap_tx(vap, m0); 2897 } 2898 2899 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2900 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2901 2902 data->buflen = xferlen; 2903 data->ni = ni; 2904 data->m = m0; 2905 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2906 2907 /* start transfer, if any */ 2908 usbd_transfer_start(sc->sc_xfer[which]); 2909 return (0); 2910} 2911 2912static int 2913rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2914{ 2915 struct rsu_softc *sc = ic->ic_softc; 2916 int error; 2917 2918 RSU_LOCK(sc); 2919 if (!sc->sc_running) { 2920 RSU_UNLOCK(sc); 2921 return (ENXIO); 2922 } 2923 2924 /* 2925 * XXX TODO: ensure that we treat 'm' as a list of frames 2926 * to transmit! 2927 */ 2928 error = mbufq_enqueue(&sc->sc_snd, m); 2929 if (error) { 2930 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2931 "%s: mbufq_enable: failed (%d)\n", 2932 __func__, 2933 error); 2934 RSU_UNLOCK(sc); 2935 return (error); 2936 } 2937 RSU_UNLOCK(sc); 2938 2939 /* This kicks the TX taskqueue */ 2940 rsu_start(sc); 2941 2942 return (0); 2943} 2944 2945static void 2946rsu_drain_mbufq(struct rsu_softc *sc) 2947{ 2948 struct mbuf *m; 2949 struct ieee80211_node *ni; 2950 2951 RSU_ASSERT_LOCKED(sc); 2952 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2953 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2954 m->m_pkthdr.rcvif = NULL; 2955 ieee80211_free_node(ni); 2956 m_freem(m); 2957 } 2958} 2959 2960static void 2961_rsu_start(struct rsu_softc *sc) 2962{ 2963 struct ieee80211_node *ni; 2964 struct rsu_data *bf; 2965 struct mbuf *m; 2966 2967 RSU_ASSERT_LOCKED(sc); 2968 2969 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2970 bf = rsu_getbuf(sc); 2971 if (bf == NULL) { 2972 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2973 "%s: failed to get buffer\n", __func__); 2974 mbufq_prepend(&sc->sc_snd, m); 2975 break; 2976 } 2977 2978 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2979 m->m_pkthdr.rcvif = NULL; 2980 2981 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2982 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2983 "%s: failed to transmit\n", __func__); 2984 if_inc_counter(ni->ni_vap->iv_ifp, 2985 IFCOUNTER_OERRORS, 1); 2986 rsu_freebuf(sc, bf); 2987 ieee80211_free_node(ni); 2988 m_freem(m); 2989 break; 2990 } 2991 } 2992} 2993 2994static void 2995rsu_start(struct rsu_softc *sc) 2996{ 2997 2998 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 2999} 3000 3001static int 3002rsu_ioctl_net(struct ieee80211com *ic, u_long cmd, void *data) 3003{ 3004 struct rsu_softc *sc = ic->ic_softc; 3005 struct ifreq *ifr = (struct ifreq *)data; 3006 int error; 3007 3008 error = 0; 3009 switch (cmd) { 3010 case SIOCSIFCAP: 3011 { 3012 struct ieee80211vap *vap; 3013 int rxmask; 3014 3015 rxmask = ifr->ifr_reqcap & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3016 3017 RSU_LOCK(sc); 3018 /* Both RXCSUM bits must be set (or unset). */ 3019 if (sc->sc_rx_checksum_enable && 3020 rxmask != (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { 3021 rxmask = 0; 3022 sc->sc_rx_checksum_enable = 0; 3023 rsu_rxfilter_set(sc, R92S_RCR_TCP_OFFLD_EN, 0); 3024 } else if (!sc->sc_rx_checksum_enable && rxmask != 0) { 3025 rxmask = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 3026 sc->sc_rx_checksum_enable = 1; 3027 rsu_rxfilter_set(sc, 0, R92S_RCR_TCP_OFFLD_EN); 3028 } else { 3029 /* Nothing to do. */ 3030 RSU_UNLOCK(sc); 3031 break; 3032 } 3033 RSU_UNLOCK(sc); 3034 3035 IEEE80211_LOCK(ic); /* XXX */ 3036 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 3037 struct ifnet *ifp = vap->iv_ifp; 3038 3039 ifp->if_capenable &= 3040 ~(IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3041 ifp->if_capenable |= rxmask; 3042 } 3043 IEEE80211_UNLOCK(ic); 3044 break; 3045 } 3046 default: 3047 error = ENOTTY; /* for net80211 */ 3048 break; 3049 } 3050 3051 return (error); 3052} 3053 3054static void 3055rsu_parent(struct ieee80211com *ic) 3056{ 3057 struct rsu_softc *sc = ic->ic_softc; 3058 3059 if (ic->ic_nrunning > 0) { 3060 if (rsu_init(sc) == 0) 3061 ieee80211_start_all(ic); 3062 else { 3063 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3064 if (vap != NULL) 3065 ieee80211_stop(vap); 3066 } 3067 } else 3068 rsu_stop(sc); 3069} 3070 3071/* 3072 * Power on sequence for A-cut adapters. 3073 */ 3074static void 3075rsu_power_on_acut(struct rsu_softc *sc) 3076{ 3077 uint32_t reg; 3078 3079 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3080 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3081 3082 /* Enable AFE macro block's bandgap and Mbias. */ 3083 rsu_write_1(sc, R92S_AFE_MISC, 3084 rsu_read_1(sc, R92S_AFE_MISC) | 3085 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 3086 /* Enable LDOA15 block. */ 3087 rsu_write_1(sc, R92S_LDOA15_CTRL, 3088 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3089 3090 rsu_write_1(sc, R92S_SPS1_CTRL, 3091 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 3092 rsu_ms_delay(sc, 2000); 3093 /* Enable switch regulator block. */ 3094 rsu_write_1(sc, R92S_SPS1_CTRL, 3095 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 3096 3097 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 3098 3099 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3100 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3101 3102 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3103 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3104 3105 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3106 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 3107 3108 /* Enable AFE clock. */ 3109 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3110 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3111 /* Enable AFE PLL macro block. */ 3112 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 3113 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 3114 /* Attach AFE PLL to MACTOP/BB. */ 3115 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3116 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3117 3118 /* Switch to 40MHz clock instead of 80MHz. */ 3119 rsu_write_2(sc, R92S_SYS_CLKR, 3120 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 3121 3122 /* Enable MAC clock. */ 3123 rsu_write_2(sc, R92S_SYS_CLKR, 3124 rsu_read_2(sc, R92S_SYS_CLKR) | 3125 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3126 3127 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3128 3129 /* Enable digital core and IOREG R/W. */ 3130 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3131 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3132 3133 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3134 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3135 3136 /* Switch the control path to firmware. */ 3137 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3138 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3139 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3140 3141 rsu_write_2(sc, R92S_CR, 0x37fc); 3142 3143 /* Fix USB RX FIFO issue. */ 3144 rsu_write_1(sc, 0xfe5c, 3145 rsu_read_1(sc, 0xfe5c) | 0x80); 3146 rsu_write_1(sc, 0x00ab, 3147 rsu_read_1(sc, 0x00ab) | 0xc0); 3148 3149 rsu_write_1(sc, R92S_SYS_CLKR, 3150 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3151} 3152 3153/* 3154 * Power on sequence for B-cut and C-cut adapters. 3155 */ 3156static void 3157rsu_power_on_bcut(struct rsu_softc *sc) 3158{ 3159 uint32_t reg; 3160 int ntries; 3161 3162 /* Prevent eFuse leakage. */ 3163 rsu_write_1(sc, 0x37, 0xb0); 3164 rsu_ms_delay(sc, 10); 3165 rsu_write_1(sc, 0x37, 0x30); 3166 3167 /* Switch the control path to hardware. */ 3168 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3169 if (reg & R92S_FWHW_SEL) { 3170 rsu_write_2(sc, R92S_SYS_CLKR, 3171 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 3172 } 3173 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3174 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 3175 rsu_ms_delay(sc, 1); 3176 3177 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3178 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3179 3180 reg = rsu_read_1(sc, R92S_AFE_MISC); 3181 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 3182 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 3183 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 3184 3185 /* Enable PLL. */ 3186 rsu_write_1(sc, R92S_LDOA15_CTRL, 3187 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3188 3189 rsu_write_1(sc, R92S_LDOV12D_CTRL, 3190 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 3191 3192 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3193 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3194 3195 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3196 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3197 3198 /* Support 64KB IMEM. */ 3199 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3200 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 3201 3202 /* Enable AFE clock. */ 3203 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3204 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3205 /* Enable AFE PLL macro block. */ 3206 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 3207 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3208 rsu_ms_delay(sc, 1); 3209 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 3210 rsu_ms_delay(sc, 1); 3211 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3212 rsu_ms_delay(sc, 1); 3213 3214 /* Attach AFE PLL to MACTOP/BB. */ 3215 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3216 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3217 3218 /* Switch to 40MHz clock. */ 3219 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 3220 /* Disable CPU clock and 80MHz SSC. */ 3221 rsu_write_1(sc, R92S_SYS_CLKR, 3222 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 3223 /* Enable MAC clock. */ 3224 rsu_write_2(sc, R92S_SYS_CLKR, 3225 rsu_read_2(sc, R92S_SYS_CLKR) | 3226 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3227 3228 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3229 3230 /* Enable digital core and IOREG R/W. */ 3231 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3232 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3233 3234 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3235 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3236 3237 /* Switch the control path to firmware. */ 3238 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3239 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3240 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3241 3242 rsu_write_2(sc, R92S_CR, 0x37fc); 3243 3244 /* Fix USB RX FIFO issue. */ 3245 rsu_write_1(sc, 0xfe5c, 3246 rsu_read_1(sc, 0xfe5c) | 0x80); 3247 3248 rsu_write_1(sc, R92S_SYS_CLKR, 3249 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3250 3251 rsu_write_1(sc, 0xfe1c, 0x80); 3252 3253 /* Make sure TxDMA is ready to download firmware. */ 3254 for (ntries = 0; ntries < 20; ntries++) { 3255 reg = rsu_read_1(sc, R92S_TCR); 3256 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 3257 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 3258 break; 3259 rsu_ms_delay(sc, 1); 3260 } 3261 if (ntries == 20) { 3262 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 3263 "%s: TxDMA is not ready\n", 3264 __func__); 3265 /* Reset TxDMA. */ 3266 reg = rsu_read_1(sc, R92S_CR); 3267 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 3268 rsu_ms_delay(sc, 1); 3269 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 3270 } 3271} 3272 3273static void 3274rsu_power_off(struct rsu_softc *sc) 3275{ 3276 /* Turn RF off. */ 3277 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 3278 rsu_ms_delay(sc, 5); 3279 3280 /* Turn MAC off. */ 3281 /* Switch control path. */ 3282 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 3283 /* Reset MACTOP. */ 3284 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 3285 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 3286 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 3287 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 3288 3289 /* Disable AFE PLL. */ 3290 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 3291 /* Disable A15V. */ 3292 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 3293 /* Disable eFuse 1.2V. */ 3294 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 3295 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 3296 /* Enable AFE macro block's bandgap and Mbias. */ 3297 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 3298 /* Disable 1.6V LDO. */ 3299 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 3300 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 3301 3302 /* Firmware - tell it to switch things off */ 3303 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 3304} 3305 3306static int 3307rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 3308{ 3309 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 3310 struct rsu_data *data; 3311 struct r92s_tx_desc *txd; 3312 int mlen; 3313 3314 while (len > 0) { 3315 data = rsu_getbuf(sc); 3316 if (data == NULL) 3317 return (ENOMEM); 3318 txd = (struct r92s_tx_desc *)data->buf; 3319 memset(txd, 0, sizeof(*txd)); 3320 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 3321 /* Last chunk. */ 3322 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 3323 mlen = len; 3324 } else 3325 mlen = RSU_TXBUFSZ - sizeof(*txd); 3326 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 3327 memcpy(&txd[1], buf, mlen); 3328 data->buflen = sizeof(*txd) + mlen; 3329 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 3330 "%s: starting transfer %p\n", 3331 __func__, data); 3332 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 3333 buf += mlen; 3334 len -= mlen; 3335 } 3336 usbd_transfer_start(sc->sc_xfer[which]); 3337 return (0); 3338} 3339 3340CTASSERT(sizeof(size_t) >= sizeof(uint32_t)); 3341 3342static int 3343rsu_load_firmware(struct rsu_softc *sc) 3344{ 3345 const struct r92s_fw_hdr *hdr; 3346 struct r92s_fw_priv dmem; 3347 struct ieee80211com *ic = &sc->sc_ic; 3348 const uint8_t *imem, *emem; 3349 uint32_t imemsz, ememsz; 3350 const struct firmware *fw; 3351 size_t size; 3352 uint32_t reg; 3353 int ntries, error; 3354 3355 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 3356 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 3357 "%s: Firmware already loaded\n", 3358 __func__); 3359 return (0); 3360 } 3361 3362 RSU_UNLOCK(sc); 3363 /* Read firmware image from the filesystem. */ 3364 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 3365 device_printf(sc->sc_dev, 3366 "%s: failed load firmware of file rsu-rtl8712fw\n", 3367 __func__); 3368 RSU_LOCK(sc); 3369 return (ENXIO); 3370 } 3371 RSU_LOCK(sc); 3372 size = fw->datasize; 3373 if (size < sizeof(*hdr)) { 3374 device_printf(sc->sc_dev, "firmware too short\n"); 3375 error = EINVAL; 3376 goto fail; 3377 } 3378 hdr = (const struct r92s_fw_hdr *)fw->data; 3379 if (hdr->signature != htole16(0x8712) && 3380 hdr->signature != htole16(0x8192)) { 3381 device_printf(sc->sc_dev, 3382 "invalid firmware signature 0x%x\n", 3383 le16toh(hdr->signature)); 3384 error = EINVAL; 3385 goto fail; 3386 } 3387 RSU_DPRINTF(sc, RSU_DEBUG_FW, "FW V%d %02x-%02x %02x:%02x\n", 3388 le16toh(hdr->version), hdr->month, hdr->day, hdr->hour, 3389 hdr->minute); 3390 3391 /* Make sure that driver and firmware are in sync. */ 3392 if (hdr->privsz != htole32(sizeof(dmem))) { 3393 device_printf(sc->sc_dev, "unsupported firmware image\n"); 3394 error = EINVAL; 3395 goto fail; 3396 } 3397 /* Get FW sections sizes. */ 3398 imemsz = le32toh(hdr->imemsz); 3399 ememsz = le32toh(hdr->sramsz); 3400 /* Check that all FW sections fit in image. */ 3401 if (imemsz > (size_t)(size - sizeof(*hdr)) || 3402 ememsz > (size_t)(size - sizeof(*hdr) - imemsz)) { 3403 device_printf(sc->sc_dev, "firmware too short\n"); 3404 error = EINVAL; 3405 goto fail; 3406 } 3407 imem = (const uint8_t *)&hdr[1]; 3408 emem = imem + imemsz; 3409 3410 /* Load IMEM section. */ 3411 error = rsu_fw_loadsection(sc, imem, imemsz); 3412 if (error != 0) { 3413 device_printf(sc->sc_dev, 3414 "could not load firmware section %s\n", "IMEM"); 3415 goto fail; 3416 } 3417 /* Wait for load to complete. */ 3418 for (ntries = 0; ntries != 50; ntries++) { 3419 rsu_ms_delay(sc, 10); 3420 reg = rsu_read_1(sc, R92S_TCR); 3421 if (reg & R92S_TCR_IMEM_CODE_DONE) 3422 break; 3423 } 3424 if (ntries == 50) { 3425 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 3426 error = ETIMEDOUT; 3427 goto fail; 3428 } 3429 /* Load EMEM section. */ 3430 error = rsu_fw_loadsection(sc, emem, ememsz); 3431 if (error != 0) { 3432 device_printf(sc->sc_dev, 3433 "could not load firmware section %s\n", "EMEM"); 3434 goto fail; 3435 } 3436 /* Wait for load to complete. */ 3437 for (ntries = 0; ntries != 50; ntries++) { 3438 rsu_ms_delay(sc, 10); 3439 reg = rsu_read_2(sc, R92S_TCR); 3440 if (reg & R92S_TCR_EMEM_CODE_DONE) 3441 break; 3442 } 3443 if (ntries == 50) { 3444 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 3445 error = ETIMEDOUT; 3446 goto fail; 3447 } 3448 /* Enable CPU. */ 3449 rsu_write_1(sc, R92S_SYS_CLKR, 3450 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 3451 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 3452 device_printf(sc->sc_dev, "could not enable system clock\n"); 3453 error = EIO; 3454 goto fail; 3455 } 3456 rsu_write_2(sc, R92S_SYS_FUNC_EN, 3457 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 3458 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 3459 device_printf(sc->sc_dev, 3460 "could not enable microcontroller\n"); 3461 error = EIO; 3462 goto fail; 3463 } 3464 /* Wait for CPU to initialize. */ 3465 for (ntries = 0; ntries < 100; ntries++) { 3466 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 3467 break; 3468 rsu_ms_delay(sc, 1); 3469 } 3470 if (ntries == 100) { 3471 device_printf(sc->sc_dev, 3472 "timeout waiting for microcontroller\n"); 3473 error = ETIMEDOUT; 3474 goto fail; 3475 } 3476 3477 /* Update DMEM section before loading. */ 3478 memset(&dmem, 0, sizeof(dmem)); 3479 dmem.hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 3480 dmem.nendpoints = sc->sc_nendpoints; 3481 dmem.chip_version = sc->cut; 3482 dmem.rf_config = sc->sc_rftype; 3483 dmem.vcs_type = R92S_VCS_TYPE_AUTO; 3484 dmem.vcs_mode = R92S_VCS_MODE_RTS_CTS; 3485 dmem.turbo_mode = 0; 3486 dmem.bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 3487 dmem.amsdu2ampdu_en = !! (sc->sc_ht); 3488 dmem.ampdu_en = !! (sc->sc_ht); 3489 dmem.agg_offload = !! (sc->sc_ht); 3490 dmem.qos_en = 1; 3491 dmem.ps_offload = 1; 3492 dmem.lowpower_mode = 1; /* XXX TODO: configurable? */ 3493 /* Load DMEM section. */ 3494 error = rsu_fw_loadsection(sc, (uint8_t *)&dmem, sizeof(dmem)); 3495 if (error != 0) { 3496 device_printf(sc->sc_dev, 3497 "could not load firmware section %s\n", "DMEM"); 3498 goto fail; 3499 } 3500 /* Wait for load to complete. */ 3501 for (ntries = 0; ntries < 100; ntries++) { 3502 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 3503 break; 3504 rsu_ms_delay(sc, 1); 3505 } 3506 if (ntries == 100) { 3507 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 3508 "DMEM"); 3509 error = ETIMEDOUT; 3510 goto fail; 3511 } 3512 /* Wait for firmware readiness. */ 3513 for (ntries = 0; ntries < 60; ntries++) { 3514 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 3515 break; 3516 rsu_ms_delay(sc, 1); 3517 } 3518 if (ntries == 60) { 3519 device_printf(sc->sc_dev, 3520 "timeout waiting for firmware readiness\n"); 3521 error = ETIMEDOUT; 3522 goto fail; 3523 } 3524 fail: 3525 firmware_put(fw, FIRMWARE_UNLOAD); 3526 return (error); 3527} 3528 3529static int 3530rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3531 const struct ieee80211_bpf_params *params) 3532{ 3533 struct ieee80211com *ic = ni->ni_ic; 3534 struct rsu_softc *sc = ic->ic_softc; 3535 struct rsu_data *bf; 3536 3537 /* prevent management frames from being sent if we're not ready */ 3538 if (!sc->sc_running) { 3539 m_freem(m); 3540 return (ENETDOWN); 3541 } 3542 RSU_LOCK(sc); 3543 bf = rsu_getbuf(sc); 3544 if (bf == NULL) { 3545 m_freem(m); 3546 RSU_UNLOCK(sc); 3547 return (ENOBUFS); 3548 } 3549 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3550 m_freem(m); 3551 rsu_freebuf(sc, bf); 3552 RSU_UNLOCK(sc); 3553 return (EIO); 3554 } 3555 RSU_UNLOCK(sc); 3556 3557 return (0); 3558} 3559 3560static void 3561rsu_rxfilter_init(struct rsu_softc *sc) 3562{ 3563 uint32_t reg; 3564 3565 RSU_ASSERT_LOCKED(sc); 3566 3567 /* Setup multicast filter. */ 3568 rsu_set_multi(sc); 3569 3570 /* Adjust Rx filter. */ 3571 reg = rsu_read_4(sc, R92S_RCR); 3572 reg &= ~R92S_RCR_AICV; 3573 reg |= R92S_RCR_APP_PHYSTS; 3574 if (sc->sc_rx_checksum_enable) 3575 reg |= R92S_RCR_TCP_OFFLD_EN; 3576 rsu_write_4(sc, R92S_RCR, reg); 3577 3578 /* Update dynamic Rx filter parts. */ 3579 rsu_rxfilter_refresh(sc); 3580} 3581 3582static void 3583rsu_rxfilter_set(struct rsu_softc *sc, uint32_t clear, uint32_t set) 3584{ 3585 /* NB: firmware can touch this register too. */ 3586 rsu_write_4(sc, R92S_RCR, 3587 (rsu_read_4(sc, R92S_RCR) & ~clear) | set); 3588} 3589 3590static void 3591rsu_rxfilter_refresh(struct rsu_softc *sc) 3592{ 3593 struct ieee80211com *ic = &sc->sc_ic; 3594 uint32_t mask_all, mask_min; 3595 3596 RSU_ASSERT_LOCKED(sc); 3597 3598 /* NB: RCR_AMF / RXFLTMAP_MGT are used by firmware. */ 3599 mask_all = R92S_RCR_ACF | R92S_RCR_AAP; 3600 mask_min = R92S_RCR_APM; 3601 if (sc->sc_vap_is_running) 3602 mask_min |= R92S_RCR_CBSSID; 3603 else 3604 mask_all |= R92S_RCR_ADF; 3605 3606 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3607 uint16_t rxfltmap; 3608 if (sc->sc_vap_is_running) 3609 rxfltmap = 0; 3610 else 3611 rxfltmap = R92S_RXFLTMAP_MGT_DEF; 3612 rsu_write_2(sc, R92S_RXFLTMAP_MGT, rxfltmap); 3613 } 3614 3615 if (ic->ic_promisc == 0 && ic->ic_opmode != IEEE80211_M_MONITOR) 3616 rsu_rxfilter_set(sc, mask_all, mask_min); 3617 else 3618 rsu_rxfilter_set(sc, mask_min, mask_all); 3619} 3620 3621static int 3622rsu_init(struct rsu_softc *sc) 3623{ 3624 struct ieee80211com *ic = &sc->sc_ic; 3625 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3626 uint8_t macaddr[IEEE80211_ADDR_LEN]; 3627 int error; 3628 int i; 3629 3630 RSU_LOCK(sc); 3631 3632 if (sc->sc_running) { 3633 RSU_UNLOCK(sc); 3634 return (0); 3635 } 3636 3637 /* Ensure the mbuf queue is drained */ 3638 rsu_drain_mbufq(sc); 3639 3640 /* Reset power management state. */ 3641 rsu_write_1(sc, R92S_USB_HRPWM, 0); 3642 3643 /* Power on adapter. */ 3644 if (sc->cut == 1) 3645 rsu_power_on_acut(sc); 3646 else 3647 rsu_power_on_bcut(sc); 3648 3649 /* Load firmware. */ 3650 error = rsu_load_firmware(sc); 3651 if (error != 0) 3652 goto fail; 3653 3654 rsu_write_4(sc, R92S_CR, 3655 rsu_read_4(sc, R92S_CR) & ~0xff000000); 3656 3657 /* Use 128 bytes pages. */ 3658 rsu_write_1(sc, 0x00b5, 3659 rsu_read_1(sc, 0x00b5) | 0x01); 3660 /* Enable USB Rx aggregation. */ 3661 rsu_write_1(sc, 0x00bd, 3662 rsu_read_1(sc, 0x00bd) | 0x80); 3663 /* Set USB Rx aggregation threshold. */ 3664 rsu_write_1(sc, 0x00d9, 0x01); 3665 /* Set USB Rx aggregation timeout (1.7ms/4). */ 3666 rsu_write_1(sc, 0xfe5b, 0x04); 3667 /* Fix USB Rx FIFO issue. */ 3668 rsu_write_1(sc, 0xfe5c, 3669 rsu_read_1(sc, 0xfe5c) | 0x80); 3670 3671 /* Set MAC address. */ 3672 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 3673 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 3674 3675 /* It really takes 1.5 seconds for the firmware to boot: */ 3676 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(2000)); 3677 3678 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 3679 __func__, 3680 ether_sprintf(macaddr)); 3681 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 3682 IEEE80211_ADDR_LEN); 3683 if (error != 0) { 3684 device_printf(sc->sc_dev, "could not set MAC address\n"); 3685 goto fail; 3686 } 3687 3688 /* Initialize Rx filter. */ 3689 rsu_rxfilter_init(sc); 3690 3691 /* Set PS mode fully active */ 3692 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 3693 if (error != 0) { 3694 device_printf(sc->sc_dev, "could not set PS mode\n"); 3695 goto fail; 3696 } 3697 3698 /* Install static keys (if any). */ 3699 error = rsu_reinit_static_keys(sc); 3700 if (error != 0) 3701 goto fail; 3702 3703 sc->sc_extra_scan = 0; 3704 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 3705 3706 /* We're ready to go. */ 3707 sc->sc_running = 1; 3708 RSU_UNLOCK(sc); 3709 3710 return (0); 3711fail: 3712 /* Need to stop all failed transfers, if any */ 3713 for (i = 0; i != RSU_N_TRANSFER; i++) 3714 usbd_transfer_stop(sc->sc_xfer[i]); 3715 RSU_UNLOCK(sc); 3716 3717 return (error); 3718} 3719 3720static void 3721rsu_stop(struct rsu_softc *sc) 3722{ 3723 int i; 3724 3725 RSU_LOCK(sc); 3726 if (!sc->sc_running) { 3727 RSU_UNLOCK(sc); 3728 return; 3729 } 3730 3731 sc->sc_running = 0; 3732 sc->sc_vap_is_running = 0; 3733 sc->sc_calibrating = 0; 3734 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 3735 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 3736 3737 /* Power off adapter. */ 3738 rsu_power_off(sc); 3739 3740 /* 3741 * CAM is not accessible after shutdown; 3742 * all entries are marked (by firmware?) as invalid. 3743 */ 3744 memset(sc->free_keys_bmap, 0, sizeof(sc->free_keys_bmap)); 3745 memset(sc->keys_bmap, 0, sizeof(sc->keys_bmap)); 3746 3747 for (i = 0; i < RSU_N_TRANSFER; i++) 3748 usbd_transfer_stop(sc->sc_xfer[i]); 3749 3750 /* Ensure the mbuf queue is drained */ 3751 rsu_drain_mbufq(sc); 3752 RSU_UNLOCK(sc); 3753} 3754 3755/* 3756 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 3757 * which breaks any kind of driver serialisation. 3758 */ 3759static void 3760rsu_ms_delay(struct rsu_softc *sc, int ms) 3761{ 3762 3763 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 3764 DELAY(ms * 1000); 3765} 3766