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/rman.h> 43 #include <sys/firmware.h> 44 #include <sys/module.h> 45 46 #include <machine/bus.h> 47 #include <machine/resource.h> 48 49 #include <net/bpf.h> 50 #include <net/if.h> 51 #include <net/if_var.h> 52 #include <net/if_arp.h> 53 #include <net/if_dl.h> 54 #include <net/if_media.h> 55 #include <net/if_types.h> 56 57 #include <netinet/in.h> 58 #include <netinet/in_systm.h> 59 #include <netinet/in_var.h> 60 #include <netinet/if_ether.h> 61 #include <netinet/ip.h> 62 63 #include <net80211/ieee80211_var.h> 64 #include <net80211/ieee80211_regdomain.h> 65 #include <net80211/ieee80211_radiotap.h> 66 67 #include <dev/usb/usb.h> 68 #include <dev/usb/usbdi.h> 69 #include "usbdevs.h" 70 71 #include <dev/rtwn/if_rtwn_ridx.h> /* XXX */ 72 #include <dev/usb/wlan/if_rsureg.h> 73 74 #define RSU_RATE_IS_CCK RTWN_RATE_IS_CCK 75 76 #ifdef USB_DEBUG 77 static int rsu_debug = 0; 78 SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW, 0, "USB rsu"); 79 SYSCTL_INT(_hw_usb_rsu, OID_AUTO, debug, CTLFLAG_RWTUN, &rsu_debug, 0, 80 "Debug level"); 81 #define RSU_DPRINTF(_sc, _flg, ...) \ 82 do \ 83 if (((_flg) == (RSU_DEBUG_ANY)) || (rsu_debug & (_flg))) \ 84 device_printf((_sc)->sc_dev, __VA_ARGS__); \ 85 while (0) 86 #else 87 #define RSU_DPRINTF(_sc, _flg, ...) 88 #endif 89 90 static int rsu_enable_11n = 1; 91 TUNABLE_INT("hw.usb.rsu.enable_11n", &rsu_enable_11n); 92 93 #define RSU_DEBUG_ANY 0xffffffff 94 #define RSU_DEBUG_TX 0x00000001 95 #define RSU_DEBUG_RX 0x00000002 96 #define RSU_DEBUG_RESET 0x00000004 97 #define RSU_DEBUG_CALIB 0x00000008 98 #define RSU_DEBUG_STATE 0x00000010 99 #define RSU_DEBUG_SCAN 0x00000020 100 #define RSU_DEBUG_FWCMD 0x00000040 101 #define RSU_DEBUG_TXDONE 0x00000080 102 #define RSU_DEBUG_FW 0x00000100 103 #define RSU_DEBUG_FWDBG 0x00000200 104 #define RSU_DEBUG_AMPDU 0x00000400 105 #define RSU_DEBUG_KEY 0x00000800 106 #define RSU_DEBUG_USB 0x00001000 107 108 static const STRUCT_USB_HOST_ID rsu_devs[] = { 109 #define RSU_HT_NOT_SUPPORTED 0 110 #define RSU_HT_SUPPORTED 1 111 #define RSU_DEV_HT(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 112 RSU_HT_SUPPORTED) } 113 #define RSU_DEV(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 114 RSU_HT_NOT_SUPPORTED) } 115 RSU_DEV(ASUS, RTL8192SU), 116 RSU_DEV(AZUREWAVE, RTL8192SU_4), 117 RSU_DEV_HT(ACCTON, RTL8192SU), 118 RSU_DEV_HT(ASUS, USBN10), 119 RSU_DEV_HT(AZUREWAVE, RTL8192SU_1), 120 RSU_DEV_HT(AZUREWAVE, RTL8192SU_2), 121 RSU_DEV_HT(AZUREWAVE, RTL8192SU_3), 122 RSU_DEV_HT(AZUREWAVE, RTL8192SU_5), 123 RSU_DEV_HT(BELKIN, RTL8192SU_1), 124 RSU_DEV_HT(BELKIN, RTL8192SU_2), 125 RSU_DEV_HT(BELKIN, RTL8192SU_3), 126 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_1), 127 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_2), 128 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_3), 129 RSU_DEV_HT(COREGA, RTL8192SU), 130 RSU_DEV_HT(DLINK2, DWA131A1), 131 RSU_DEV_HT(DLINK2, RTL8192SU_1), 132 RSU_DEV_HT(DLINK2, RTL8192SU_2), 133 RSU_DEV_HT(EDIMAX, RTL8192SU_1), 134 RSU_DEV_HT(EDIMAX, RTL8192SU_2), 135 RSU_DEV_HT(EDIMAX, EW7622UMN), 136 RSU_DEV_HT(GUILLEMOT, HWGUN54), 137 RSU_DEV_HT(GUILLEMOT, HWNUM300), 138 RSU_DEV_HT(HAWKING, RTL8192SU_1), 139 RSU_DEV_HT(HAWKING, RTL8192SU_2), 140 RSU_DEV_HT(PLANEX2, GWUSNANO), 141 RSU_DEV_HT(REALTEK, RTL8171), 142 RSU_DEV_HT(REALTEK, RTL8172), 143 RSU_DEV_HT(REALTEK, RTL8173), 144 RSU_DEV_HT(REALTEK, RTL8174), 145 RSU_DEV_HT(REALTEK, RTL8192SU), 146 RSU_DEV_HT(REALTEK, RTL8712), 147 RSU_DEV_HT(REALTEK, RTL8713), 148 RSU_DEV_HT(SENAO, RTL8192SU_1), 149 RSU_DEV_HT(SENAO, RTL8192SU_2), 150 RSU_DEV_HT(SITECOMEU, WL349V1), 151 RSU_DEV_HT(SITECOMEU, WL353), 152 RSU_DEV_HT(SWEEX2, LW154), 153 RSU_DEV_HT(TRENDNET, TEW646UBH), 154 #undef RSU_DEV_HT 155 #undef RSU_DEV 156 }; 157 158 static device_probe_t rsu_match; 159 static device_attach_t rsu_attach; 160 static device_detach_t rsu_detach; 161 static usb_callback_t rsu_bulk_tx_callback_be_bk; 162 static usb_callback_t rsu_bulk_tx_callback_vi_vo; 163 static usb_callback_t rsu_bulk_tx_callback_h2c; 164 static usb_callback_t rsu_bulk_rx_callback; 165 static usb_error_t rsu_do_request(struct rsu_softc *, 166 struct usb_device_request *, void *); 167 static struct ieee80211vap * 168 rsu_vap_create(struct ieee80211com *, const char name[], 169 int, enum ieee80211_opmode, int, const uint8_t bssid[], 170 const uint8_t mac[]); 171 static void rsu_vap_delete(struct ieee80211vap *); 172 static void rsu_scan_start(struct ieee80211com *); 173 static void rsu_scan_end(struct ieee80211com *); 174 static void rsu_getradiocaps(struct ieee80211com *, int, int *, 175 struct ieee80211_channel[]); 176 static void rsu_set_channel(struct ieee80211com *); 177 static void rsu_scan_curchan(struct ieee80211_scan_state *, unsigned long); 178 static void rsu_scan_mindwell(struct ieee80211_scan_state *); 179 static void rsu_update_promisc(struct ieee80211com *); 180 static uint8_t rsu_get_multi_pos(const uint8_t[]); 181 static void rsu_set_multi(struct rsu_softc *); 182 static void rsu_update_mcast(struct ieee80211com *); 183 static int rsu_alloc_rx_list(struct rsu_softc *); 184 static void rsu_free_rx_list(struct rsu_softc *); 185 static int rsu_alloc_tx_list(struct rsu_softc *); 186 static void rsu_free_tx_list(struct rsu_softc *); 187 static void rsu_free_list(struct rsu_softc *, struct rsu_data [], int); 188 static struct rsu_data *_rsu_getbuf(struct rsu_softc *); 189 static struct rsu_data *rsu_getbuf(struct rsu_softc *); 190 static void rsu_freebuf(struct rsu_softc *, struct rsu_data *); 191 static int rsu_write_region_1(struct rsu_softc *, uint16_t, uint8_t *, 192 int); 193 static void rsu_write_1(struct rsu_softc *, uint16_t, uint8_t); 194 static void rsu_write_2(struct rsu_softc *, uint16_t, uint16_t); 195 static void rsu_write_4(struct rsu_softc *, uint16_t, uint32_t); 196 static int rsu_read_region_1(struct rsu_softc *, uint16_t, uint8_t *, 197 int); 198 static uint8_t rsu_read_1(struct rsu_softc *, uint16_t); 199 static uint16_t rsu_read_2(struct rsu_softc *, uint16_t); 200 static uint32_t rsu_read_4(struct rsu_softc *, uint16_t); 201 static int rsu_fw_iocmd(struct rsu_softc *, uint32_t); 202 static uint8_t rsu_efuse_read_1(struct rsu_softc *, uint16_t); 203 static int rsu_read_rom(struct rsu_softc *); 204 static int rsu_fw_cmd(struct rsu_softc *, uint8_t, void *, int); 205 static void rsu_calib_task(void *, int); 206 static void rsu_tx_task(void *, int); 207 static void rsu_set_led(struct rsu_softc *, int); 208 static int rsu_monitor_newstate(struct ieee80211vap *, 209 enum ieee80211_state, int); 210 static int rsu_newstate(struct ieee80211vap *, enum ieee80211_state, int); 211 static int rsu_key_alloc(struct ieee80211vap *, struct ieee80211_key *, 212 ieee80211_keyix *, ieee80211_keyix *); 213 static int rsu_process_key(struct ieee80211vap *, 214 const struct ieee80211_key *, int); 215 static int rsu_key_set(struct ieee80211vap *, 216 const struct ieee80211_key *); 217 static int rsu_key_delete(struct ieee80211vap *, 218 const struct ieee80211_key *); 219 static int rsu_cam_read(struct rsu_softc *, uint8_t, uint32_t *); 220 static void rsu_cam_write(struct rsu_softc *, uint8_t, uint32_t); 221 static int rsu_key_check(struct rsu_softc *, ieee80211_keyix, int); 222 static uint8_t rsu_crypto_mode(struct rsu_softc *, u_int, int); 223 static int rsu_set_key_group(struct rsu_softc *, 224 const struct ieee80211_key *); 225 static int rsu_set_key_pair(struct rsu_softc *, 226 const struct ieee80211_key *); 227 static int rsu_reinit_static_keys(struct rsu_softc *); 228 static int rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix); 229 static void rsu_delete_key_pair_cb(void *, int); 230 static int rsu_site_survey(struct rsu_softc *, 231 struct ieee80211_scan_ssid *); 232 static int rsu_join_bss(struct rsu_softc *, struct ieee80211_node *); 233 static int rsu_disconnect(struct rsu_softc *); 234 static int rsu_hwrssi_to_rssi(struct rsu_softc *, int hw_rssi); 235 static void rsu_event_survey(struct rsu_softc *, uint8_t *, int); 236 static void rsu_event_join_bss(struct rsu_softc *, uint8_t *, int); 237 static void rsu_rx_event(struct rsu_softc *, uint8_t, uint8_t *, int); 238 static void rsu_rx_multi_event(struct rsu_softc *, uint8_t *, int); 239 static int8_t rsu_get_rssi(struct rsu_softc *, int, void *); 240 static struct mbuf * rsu_rx_copy_to_mbuf(struct rsu_softc *, 241 struct r92s_rx_stat *, int); 242 static uint32_t rsu_get_tsf_low(struct rsu_softc *); 243 static uint32_t rsu_get_tsf_high(struct rsu_softc *); 244 static struct ieee80211_node * rsu_rx_frame(struct rsu_softc *, struct mbuf *); 245 static struct mbuf * rsu_rx_multi_frame(struct rsu_softc *, uint8_t *, int); 246 static struct mbuf * 247 rsu_rxeof(struct usb_xfer *, struct rsu_data *); 248 static void rsu_txeof(struct usb_xfer *, struct rsu_data *); 249 static int rsu_raw_xmit(struct ieee80211_node *, struct mbuf *, 250 const struct ieee80211_bpf_params *); 251 static void rsu_rxfilter_init(struct rsu_softc *); 252 static void rsu_rxfilter_set(struct rsu_softc *, uint32_t, uint32_t); 253 static void rsu_rxfilter_refresh(struct rsu_softc *); 254 static int rsu_init(struct rsu_softc *); 255 static int rsu_tx_start(struct rsu_softc *, struct ieee80211_node *, 256 struct mbuf *, struct rsu_data *); 257 static int rsu_transmit(struct ieee80211com *, struct mbuf *); 258 static void rsu_start(struct rsu_softc *); 259 static void _rsu_start(struct rsu_softc *); 260 static int rsu_ioctl_net(struct ieee80211com *, u_long, void *); 261 static void rsu_parent(struct ieee80211com *); 262 static void rsu_stop(struct rsu_softc *); 263 static void rsu_ms_delay(struct rsu_softc *, int); 264 265 static device_method_t rsu_methods[] = { 266 DEVMETHOD(device_probe, rsu_match), 267 DEVMETHOD(device_attach, rsu_attach), 268 DEVMETHOD(device_detach, rsu_detach), 269 270 DEVMETHOD_END 271 }; 272 273 static driver_t rsu_driver = { 274 .name = "rsu", 275 .methods = rsu_methods, 276 .size = sizeof(struct rsu_softc) 277 }; 278 279 static devclass_t rsu_devclass; 280 281 DRIVER_MODULE(rsu, uhub, rsu_driver, rsu_devclass, NULL, 0); 282 MODULE_DEPEND(rsu, wlan, 1, 1, 1); 283 MODULE_DEPEND(rsu, usb, 1, 1, 1); 284 MODULE_DEPEND(rsu, firmware, 1, 1, 1); 285 MODULE_VERSION(rsu, 1); 286 USB_PNP_HOST_INFO(rsu_devs); 287 288 static const uint8_t rsu_chan_2ghz[] = 289 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }; 290 291 static uint8_t rsu_wme_ac_xfer_map[4] = { 292 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 293 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 294 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 295 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 296 }; 297 298 /* XXX hard-coded */ 299 #define RSU_H2C_ENDPOINT 3 300 301 static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 302 [RSU_BULK_RX] = { 303 .type = UE_BULK, 304 .endpoint = UE_ADDR_ANY, 305 .direction = UE_DIR_IN, 306 .bufsize = RSU_RXBUFSZ, 307 .flags = { 308 .pipe_bof = 1, 309 .short_xfer_ok = 1 310 }, 311 .callback = rsu_bulk_rx_callback 312 }, 313 [RSU_BULK_TX_BE_BK] = { 314 .type = UE_BULK, 315 .endpoint = 0x06, 316 .direction = UE_DIR_OUT, 317 .bufsize = RSU_TXBUFSZ, 318 .flags = { 319 .ext_buffer = 1, 320 .pipe_bof = 1, 321 .force_short_xfer = 1 322 }, 323 .callback = rsu_bulk_tx_callback_be_bk, 324 .timeout = RSU_TX_TIMEOUT 325 }, 326 [RSU_BULK_TX_VI_VO] = { 327 .type = UE_BULK, 328 .endpoint = 0x04, 329 .direction = UE_DIR_OUT, 330 .bufsize = RSU_TXBUFSZ, 331 .flags = { 332 .ext_buffer = 1, 333 .pipe_bof = 1, 334 .force_short_xfer = 1 335 }, 336 .callback = rsu_bulk_tx_callback_vi_vo, 337 .timeout = RSU_TX_TIMEOUT 338 }, 339 [RSU_BULK_TX_H2C] = { 340 .type = UE_BULK, 341 .endpoint = 0x0d, 342 .direction = UE_DIR_OUT, 343 .bufsize = RSU_TXBUFSZ, 344 .flags = { 345 .ext_buffer = 1, 346 .pipe_bof = 1, 347 .short_xfer_ok = 1 348 }, 349 .callback = rsu_bulk_tx_callback_h2c, 350 .timeout = RSU_TX_TIMEOUT 351 }, 352 }; 353 354 static int 355 rsu_match(device_t self) 356 { 357 struct usb_attach_arg *uaa = device_get_ivars(self); 358 359 if (uaa->usb_mode != USB_MODE_HOST || 360 uaa->info.bIfaceIndex != 0 || 361 uaa->info.bConfigIndex != 0) 362 return (ENXIO); 363 364 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 365 } 366 367 static int 368 rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 369 { 370 371 return (ENOTSUP); 372 } 373 374 static void 375 rsu_update_chw(struct ieee80211com *ic) 376 { 377 378 } 379 380 /* 381 * notification from net80211 that it'd like to do A-MPDU on the given TID. 382 * 383 * Note: this actually hangs traffic at the present moment, so don't use it. 384 * The firmware debug does indiciate it's sending and establishing a TX AMPDU 385 * session, but then no traffic flows. 386 */ 387 static int 388 rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 389 { 390 #if 0 391 struct rsu_softc *sc = ni->ni_ic->ic_softc; 392 struct r92s_add_ba_req req; 393 394 /* Don't enable if it's requested or running */ 395 if (IEEE80211_AMPDU_REQUESTED(tap)) 396 return (0); 397 if (IEEE80211_AMPDU_RUNNING(tap)) 398 return (0); 399 400 /* We've decided to send addba; so send it */ 401 req.tid = htole32(tap->txa_tid); 402 403 /* Attempt net80211 state */ 404 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 405 return (0); 406 407 /* Send the firmware command */ 408 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: establishing AMPDU TX for TID %d\n", 409 __func__, 410 tap->txa_tid); 411 412 RSU_LOCK(sc); 413 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 1) { 414 RSU_UNLOCK(sc); 415 /* Mark failure */ 416 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 417 return (0); 418 } 419 RSU_UNLOCK(sc); 420 421 /* Mark success; we don't get any further notifications */ 422 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 423 #endif 424 /* Return 0, we're driving this ourselves */ 425 return (0); 426 } 427 428 static int 429 rsu_wme_update(struct ieee80211com *ic) 430 { 431 432 /* Firmware handles this; not our problem */ 433 return (0); 434 } 435 436 static int 437 rsu_attach(device_t self) 438 { 439 struct usb_attach_arg *uaa = device_get_ivars(self); 440 struct rsu_softc *sc = device_get_softc(self); 441 struct ieee80211com *ic = &sc->sc_ic; 442 int error; 443 uint8_t iface_index; 444 struct usb_interface *iface; 445 const char *rft; 446 447 device_set_usb_desc(self); 448 sc->sc_udev = uaa->device; 449 sc->sc_dev = self; 450 sc->sc_rx_checksum_enable = 1; 451 if (rsu_enable_11n) 452 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 453 454 /* Get number of endpoints */ 455 iface = usbd_get_iface(sc->sc_udev, 0); 456 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 457 458 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 459 if (sc->sc_nendpoints != 4) { 460 device_printf(sc->sc_dev, 461 "the driver currently only supports 4-endpoint devices\n"); 462 return (ENXIO); 463 } 464 465 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 466 MTX_DEF); 467 RSU_DELKEY_BMAP_LOCK_INIT(sc); 468 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 469 rsu_calib_task, sc); 470 TASK_INIT(&sc->del_key_task, 0, rsu_delete_key_pair_cb, sc); 471 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 472 mbufq_init(&sc->sc_snd, ifqmaxlen); 473 474 /* Allocate Tx/Rx buffers. */ 475 error = rsu_alloc_rx_list(sc); 476 if (error != 0) { 477 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 478 goto fail_usb; 479 } 480 481 error = rsu_alloc_tx_list(sc); 482 if (error != 0) { 483 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 484 rsu_free_rx_list(sc); 485 goto fail_usb; 486 } 487 488 iface_index = 0; 489 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 490 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 491 if (error) { 492 device_printf(sc->sc_dev, 493 "could not allocate USB transfers, err=%s\n", 494 usbd_errstr(error)); 495 goto fail_usb; 496 } 497 RSU_LOCK(sc); 498 /* Read chip revision. */ 499 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 500 if (sc->cut != 3) 501 sc->cut = (sc->cut >> 1) + 1; 502 error = rsu_read_rom(sc); 503 RSU_UNLOCK(sc); 504 if (error != 0) { 505 device_printf(self, "could not read ROM\n"); 506 goto fail_rom; 507 } 508 509 /* Figure out TX/RX streams */ 510 switch (sc->rom[84]) { 511 case 0x0: 512 sc->sc_rftype = RTL8712_RFCONFIG_1T1R; 513 sc->sc_nrxstream = 1; 514 sc->sc_ntxstream = 1; 515 rft = "1T1R"; 516 break; 517 case 0x1: 518 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 519 sc->sc_nrxstream = 2; 520 sc->sc_ntxstream = 1; 521 rft = "1T2R"; 522 break; 523 case 0x2: 524 sc->sc_rftype = RTL8712_RFCONFIG_2T2R; 525 sc->sc_nrxstream = 2; 526 sc->sc_ntxstream = 2; 527 rft = "2T2R"; 528 break; 529 case 0x3: /* "green" NIC */ 530 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 531 sc->sc_nrxstream = 2; 532 sc->sc_ntxstream = 1; 533 rft = "1T2R ('green')"; 534 break; 535 default: 536 device_printf(sc->sc_dev, 537 "%s: unknown board type (rfconfig=0x%02x)\n", 538 __func__, 539 sc->rom[84]); 540 goto fail_rom; 541 } 542 543 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 544 device_printf(self, "MAC/BB RTL8712 cut %d %s\n", sc->cut, rft); 545 546 ic->ic_softc = sc; 547 ic->ic_name = device_get_nameunit(self); 548 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 549 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 550 551 /* Set device capabilities. */ 552 ic->ic_caps = 553 IEEE80211_C_STA | /* station mode */ 554 IEEE80211_C_MONITOR | /* monitor mode supported */ 555 #if 0 556 IEEE80211_C_BGSCAN | /* Background scan. */ 557 #endif 558 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 559 IEEE80211_C_WME | /* WME/QoS */ 560 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 561 IEEE80211_C_WPA; /* WPA/RSN. */ 562 563 ic->ic_cryptocaps = 564 IEEE80211_CRYPTO_WEP | 565 IEEE80211_CRYPTO_TKIP | 566 IEEE80211_CRYPTO_AES_CCM; 567 568 /* Check if HT support is present. */ 569 if (sc->sc_ht) { 570 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 571 572 /* Enable basic HT */ 573 ic->ic_htcaps = IEEE80211_HTC_HT | 574 #if 0 575 IEEE80211_HTC_AMPDU | 576 #endif 577 IEEE80211_HTC_AMSDU | 578 IEEE80211_HTCAP_MAXAMSDU_3839 | 579 IEEE80211_HTCAP_SMPS_OFF; 580 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 581 582 /* set number of spatial streams */ 583 ic->ic_txstream = sc->sc_ntxstream; 584 ic->ic_rxstream = sc->sc_nrxstream; 585 } 586 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 587 588 rsu_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 589 ic->ic_channels); 590 591 ieee80211_ifattach(ic); 592 ic->ic_raw_xmit = rsu_raw_xmit; 593 ic->ic_scan_start = rsu_scan_start; 594 ic->ic_scan_end = rsu_scan_end; 595 ic->ic_getradiocaps = rsu_getradiocaps; 596 ic->ic_set_channel = rsu_set_channel; 597 ic->ic_scan_curchan = rsu_scan_curchan; 598 ic->ic_scan_mindwell = rsu_scan_mindwell; 599 ic->ic_vap_create = rsu_vap_create; 600 ic->ic_vap_delete = rsu_vap_delete; 601 ic->ic_update_promisc = rsu_update_promisc; 602 ic->ic_update_mcast = rsu_update_mcast; 603 ic->ic_ioctl = rsu_ioctl_net; 604 ic->ic_parent = rsu_parent; 605 ic->ic_transmit = rsu_transmit; 606 ic->ic_send_mgmt = rsu_send_mgmt; 607 ic->ic_update_chw = rsu_update_chw; 608 ic->ic_ampdu_enable = rsu_ampdu_enable; 609 ic->ic_wme.wme_update = rsu_wme_update; 610 611 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 612 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 613 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 614 RSU_RX_RADIOTAP_PRESENT); 615 616 if (bootverbose) 617 ieee80211_announce(ic); 618 619 return (0); 620 621 fail_rom: 622 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 623 fail_usb: 624 mtx_destroy(&sc->sc_mtx); 625 return (ENXIO); 626 } 627 628 static int 629 rsu_detach(device_t self) 630 { 631 struct rsu_softc *sc = device_get_softc(self); 632 struct ieee80211com *ic = &sc->sc_ic; 633 634 rsu_stop(sc); 635 636 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 637 638 /* 639 * Free buffers /before/ we detach from net80211, else node 640 * references to destroyed vaps will lead to a panic. 641 */ 642 /* Free Tx/Rx buffers. */ 643 RSU_LOCK(sc); 644 rsu_free_tx_list(sc); 645 rsu_free_rx_list(sc); 646 RSU_UNLOCK(sc); 647 648 /* Frames are freed; detach from net80211 */ 649 ieee80211_ifdetach(ic); 650 651 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 652 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 653 taskqueue_drain(taskqueue_thread, &sc->tx_task); 654 655 RSU_DELKEY_BMAP_LOCK_DESTROY(sc); 656 mtx_destroy(&sc->sc_mtx); 657 658 return (0); 659 } 660 661 static usb_error_t 662 rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 663 void *data) 664 { 665 usb_error_t err; 666 int ntries = 10; 667 668 RSU_ASSERT_LOCKED(sc); 669 670 while (ntries--) { 671 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 672 req, data, 0, NULL, 250 /* ms */); 673 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 674 break; 675 RSU_DPRINTF(sc, RSU_DEBUG_USB, 676 "Control request failed, %s (retries left: %d)\n", 677 usbd_errstr(err), ntries); 678 rsu_ms_delay(sc, 10); 679 } 680 681 return (err); 682 } 683 684 static struct ieee80211vap * 685 rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 686 enum ieee80211_opmode opmode, int flags, 687 const uint8_t bssid[IEEE80211_ADDR_LEN], 688 const uint8_t mac[IEEE80211_ADDR_LEN]) 689 { 690 struct rsu_softc *sc = ic->ic_softc; 691 struct rsu_vap *uvp; 692 struct ieee80211vap *vap; 693 struct ifnet *ifp; 694 695 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 696 return (NULL); 697 698 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 699 vap = &uvp->vap; 700 701 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 702 flags, bssid) != 0) { 703 /* out of memory */ 704 free(uvp, M_80211_VAP); 705 return (NULL); 706 } 707 708 ifp = vap->iv_ifp; 709 ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 710 RSU_LOCK(sc); 711 if (sc->sc_rx_checksum_enable) 712 ifp->if_capenable |= IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 713 RSU_UNLOCK(sc); 714 715 /* override state transition machine */ 716 uvp->newstate = vap->iv_newstate; 717 if (opmode == IEEE80211_M_MONITOR) 718 vap->iv_newstate = rsu_monitor_newstate; 719 else 720 vap->iv_newstate = rsu_newstate; 721 vap->iv_key_alloc = rsu_key_alloc; 722 vap->iv_key_set = rsu_key_set; 723 vap->iv_key_delete = rsu_key_delete; 724 725 /* Limits from the r92su driver */ 726 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 727 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 728 729 /* complete setup */ 730 ieee80211_vap_attach(vap, ieee80211_media_change, 731 ieee80211_media_status, mac); 732 ic->ic_opmode = opmode; 733 734 return (vap); 735 } 736 737 static void 738 rsu_vap_delete(struct ieee80211vap *vap) 739 { 740 struct rsu_vap *uvp = RSU_VAP(vap); 741 742 ieee80211_vap_detach(vap); 743 free(uvp, M_80211_VAP); 744 } 745 746 static void 747 rsu_scan_start(struct ieee80211com *ic) 748 { 749 struct rsu_softc *sc = ic->ic_softc; 750 struct ieee80211_scan_state *ss = ic->ic_scan; 751 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 752 int error; 753 754 /* Scanning is done by the firmware. */ 755 RSU_LOCK(sc); 756 sc->sc_active_scan = !!(ss->ss_flags & IEEE80211_SCAN_ACTIVE); 757 /* XXX TODO: force awake if in network-sleep? */ 758 error = rsu_site_survey(sc, ss->ss_nssid > 0 ? &ss->ss_ssid[0] : NULL); 759 RSU_UNLOCK(sc); 760 if (error != 0) { 761 device_printf(sc->sc_dev, 762 "could not send site survey command\n"); 763 ieee80211_cancel_scan(vap); 764 } 765 } 766 767 static void 768 rsu_scan_end(struct ieee80211com *ic) 769 { 770 /* Nothing to do here. */ 771 } 772 773 static void 774 rsu_getradiocaps(struct ieee80211com *ic, 775 int maxchans, int *nchans, struct ieee80211_channel chans[]) 776 { 777 struct rsu_softc *sc = ic->ic_softc; 778 uint8_t bands[IEEE80211_MODE_BYTES]; 779 780 /* Set supported .11b and .11g rates. */ 781 memset(bands, 0, sizeof(bands)); 782 setbit(bands, IEEE80211_MODE_11B); 783 setbit(bands, IEEE80211_MODE_11G); 784 if (sc->sc_ht) 785 setbit(bands, IEEE80211_MODE_11NG); 786 ieee80211_add_channel_list_2ghz(chans, maxchans, nchans, 787 rsu_chan_2ghz, nitems(rsu_chan_2ghz), bands, 788 (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0); 789 } 790 791 static void 792 rsu_set_channel(struct ieee80211com *ic) 793 { 794 struct rsu_softc *sc = ic->ic_softc; 795 796 /* 797 * Only need to set the channel in Monitor mode. AP scanning and auth 798 * are already taken care of by their respective firmware commands. 799 */ 800 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 801 struct r92s_set_channel cmd; 802 int error; 803 804 cmd.channel = IEEE80211_CHAN2IEEE(ic->ic_curchan); 805 806 RSU_LOCK(sc); 807 error = rsu_fw_cmd(sc, R92S_CMD_SET_CHANNEL, &cmd, 808 sizeof(cmd)); 809 if (error != 0) { 810 device_printf(sc->sc_dev, 811 "%s: error %d setting channel\n", __func__, 812 error); 813 } 814 RSU_UNLOCK(sc); 815 } 816 } 817 818 static void 819 rsu_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 820 { 821 /* Scan is done in rsu_scan_start(). */ 822 } 823 824 /** 825 * Called by the net80211 framework to indicate 826 * the minimum dwell time has been met, terminate the scan. 827 * We don't actually terminate the scan as the firmware will notify 828 * us when it's finished and we have no way to interrupt it. 829 */ 830 static void 831 rsu_scan_mindwell(struct ieee80211_scan_state *ss) 832 { 833 /* NB: don't try to abort scan; wait for firmware to finish */ 834 } 835 836 static void 837 rsu_update_promisc(struct ieee80211com *ic) 838 { 839 struct rsu_softc *sc = ic->ic_softc; 840 841 RSU_LOCK(sc); 842 if (sc->sc_running) 843 rsu_rxfilter_refresh(sc); 844 RSU_UNLOCK(sc); 845 } 846 847 /* 848 * The same as rtwn_get_multi_pos() / rtwn_set_multi(). 849 */ 850 static uint8_t 851 rsu_get_multi_pos(const uint8_t maddr[]) 852 { 853 uint64_t mask = 0x00004d101df481b4; 854 uint8_t pos = 0x27; /* initial value */ 855 int i, j; 856 857 for (i = 0; i < IEEE80211_ADDR_LEN; i++) 858 for (j = (i == 0) ? 1 : 0; j < 8; j++) 859 if ((maddr[i] >> j) & 1) 860 pos ^= (mask >> (i * 8 + j - 1)); 861 862 pos &= 0x3f; 863 864 return (pos); 865 } 866 867 static void 868 rsu_set_multi(struct rsu_softc *sc) 869 { 870 struct ieee80211com *ic = &sc->sc_ic; 871 uint32_t mfilt[2]; 872 873 RSU_ASSERT_LOCKED(sc); 874 875 /* general structure was copied from ath(4). */ 876 if (ic->ic_allmulti == 0) { 877 struct ieee80211vap *vap; 878 struct ifnet *ifp; 879 struct ifmultiaddr *ifma; 880 881 /* 882 * Merge multicast addresses to form the hardware filter. 883 */ 884 mfilt[0] = mfilt[1] = 0; 885 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 886 ifp = vap->iv_ifp; 887 if_maddr_rlock(ifp); 888 CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 889 caddr_t dl; 890 uint8_t pos; 891 892 dl = LLADDR((struct sockaddr_dl *) 893 ifma->ifma_addr); 894 pos = rsu_get_multi_pos(dl); 895 896 mfilt[pos / 32] |= (1 << (pos % 32)); 897 } 898 if_maddr_runlock(ifp); 899 } 900 } else 901 mfilt[0] = mfilt[1] = ~0; 902 903 rsu_write_4(sc, R92S_MAR + 0, mfilt[0]); 904 rsu_write_4(sc, R92S_MAR + 4, mfilt[1]); 905 906 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: MC filter %08x:%08x\n", 907 __func__, mfilt[0], mfilt[1]); 908 } 909 910 static void 911 rsu_update_mcast(struct ieee80211com *ic) 912 { 913 struct rsu_softc *sc = ic->ic_softc; 914 915 RSU_LOCK(sc); 916 if (sc->sc_running) 917 rsu_set_multi(sc); 918 RSU_UNLOCK(sc); 919 } 920 921 static int 922 rsu_alloc_list(struct rsu_softc *sc, struct rsu_data data[], 923 int ndata, int maxsz) 924 { 925 int i, error; 926 927 for (i = 0; i < ndata; i++) { 928 struct rsu_data *dp = &data[i]; 929 dp->sc = sc; 930 dp->m = NULL; 931 dp->buf = malloc(maxsz, M_USBDEV, M_NOWAIT); 932 if (dp->buf == NULL) { 933 device_printf(sc->sc_dev, 934 "could not allocate buffer\n"); 935 error = ENOMEM; 936 goto fail; 937 } 938 dp->ni = NULL; 939 } 940 941 return (0); 942 fail: 943 rsu_free_list(sc, data, ndata); 944 return (error); 945 } 946 947 static int 948 rsu_alloc_rx_list(struct rsu_softc *sc) 949 { 950 int error, i; 951 952 error = rsu_alloc_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT, 953 RSU_RXBUFSZ); 954 if (error != 0) 955 return (error); 956 957 STAILQ_INIT(&sc->sc_rx_active); 958 STAILQ_INIT(&sc->sc_rx_inactive); 959 960 for (i = 0; i < RSU_RX_LIST_COUNT; i++) 961 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i], next); 962 963 return (0); 964 } 965 966 static int 967 rsu_alloc_tx_list(struct rsu_softc *sc) 968 { 969 int error, i; 970 971 error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT, 972 RSU_TXBUFSZ); 973 if (error != 0) 974 return (error); 975 976 STAILQ_INIT(&sc->sc_tx_inactive); 977 978 for (i = 0; i != RSU_N_TRANSFER; i++) { 979 STAILQ_INIT(&sc->sc_tx_active[i]); 980 STAILQ_INIT(&sc->sc_tx_pending[i]); 981 } 982 983 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 984 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i], next); 985 } 986 987 return (0); 988 } 989 990 static void 991 rsu_free_tx_list(struct rsu_softc *sc) 992 { 993 int i; 994 995 /* prevent further allocations from TX list(s) */ 996 STAILQ_INIT(&sc->sc_tx_inactive); 997 998 for (i = 0; i != RSU_N_TRANSFER; i++) { 999 STAILQ_INIT(&sc->sc_tx_active[i]); 1000 STAILQ_INIT(&sc->sc_tx_pending[i]); 1001 } 1002 1003 rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT); 1004 } 1005 1006 static void 1007 rsu_free_rx_list(struct rsu_softc *sc) 1008 { 1009 /* prevent further allocations from RX list(s) */ 1010 STAILQ_INIT(&sc->sc_rx_inactive); 1011 STAILQ_INIT(&sc->sc_rx_active); 1012 1013 rsu_free_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT); 1014 } 1015 1016 static void 1017 rsu_free_list(struct rsu_softc *sc, struct rsu_data data[], int ndata) 1018 { 1019 int i; 1020 1021 for (i = 0; i < ndata; i++) { 1022 struct rsu_data *dp = &data[i]; 1023 1024 if (dp->buf != NULL) { 1025 free(dp->buf, M_USBDEV); 1026 dp->buf = NULL; 1027 } 1028 if (dp->ni != NULL) { 1029 ieee80211_free_node(dp->ni); 1030 dp->ni = NULL; 1031 } 1032 } 1033 } 1034 1035 static struct rsu_data * 1036 _rsu_getbuf(struct rsu_softc *sc) 1037 { 1038 struct rsu_data *bf; 1039 1040 bf = STAILQ_FIRST(&sc->sc_tx_inactive); 1041 if (bf != NULL) 1042 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next); 1043 else 1044 bf = NULL; 1045 return (bf); 1046 } 1047 1048 static struct rsu_data * 1049 rsu_getbuf(struct rsu_softc *sc) 1050 { 1051 struct rsu_data *bf; 1052 1053 RSU_ASSERT_LOCKED(sc); 1054 1055 bf = _rsu_getbuf(sc); 1056 if (bf == NULL) { 1057 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: no buffers\n", __func__); 1058 } 1059 return (bf); 1060 } 1061 1062 static void 1063 rsu_freebuf(struct rsu_softc *sc, struct rsu_data *bf) 1064 { 1065 1066 RSU_ASSERT_LOCKED(sc); 1067 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, bf, next); 1068 } 1069 1070 static int 1071 rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1072 int len) 1073 { 1074 usb_device_request_t req; 1075 1076 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1077 req.bRequest = R92S_REQ_REGS; 1078 USETW(req.wValue, addr); 1079 USETW(req.wIndex, 0); 1080 USETW(req.wLength, len); 1081 1082 return (rsu_do_request(sc, &req, buf)); 1083 } 1084 1085 static void 1086 rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 1087 { 1088 rsu_write_region_1(sc, addr, &val, 1); 1089 } 1090 1091 static void 1092 rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 1093 { 1094 val = htole16(val); 1095 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 1096 } 1097 1098 static void 1099 rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 1100 { 1101 val = htole32(val); 1102 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 1103 } 1104 1105 static int 1106 rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1107 int len) 1108 { 1109 usb_device_request_t req; 1110 1111 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1112 req.bRequest = R92S_REQ_REGS; 1113 USETW(req.wValue, addr); 1114 USETW(req.wIndex, 0); 1115 USETW(req.wLength, len); 1116 1117 return (rsu_do_request(sc, &req, buf)); 1118 } 1119 1120 static uint8_t 1121 rsu_read_1(struct rsu_softc *sc, uint16_t addr) 1122 { 1123 uint8_t val; 1124 1125 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 1126 return (0xff); 1127 return (val); 1128 } 1129 1130 static uint16_t 1131 rsu_read_2(struct rsu_softc *sc, uint16_t addr) 1132 { 1133 uint16_t val; 1134 1135 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 1136 return (0xffff); 1137 return (le16toh(val)); 1138 } 1139 1140 static uint32_t 1141 rsu_read_4(struct rsu_softc *sc, uint16_t addr) 1142 { 1143 uint32_t val; 1144 1145 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 1146 return (0xffffffff); 1147 return (le32toh(val)); 1148 } 1149 1150 static int 1151 rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 1152 { 1153 int ntries; 1154 1155 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 1156 rsu_ms_delay(sc, 1); 1157 for (ntries = 0; ntries < 50; ntries++) { 1158 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 1159 return (0); 1160 rsu_ms_delay(sc, 1); 1161 } 1162 return (ETIMEDOUT); 1163 } 1164 1165 static uint8_t 1166 rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 1167 { 1168 uint32_t reg; 1169 int ntries; 1170 1171 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1172 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 1173 reg &= ~R92S_EFUSE_CTRL_VALID; 1174 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 1175 /* Wait for read operation to complete. */ 1176 for (ntries = 0; ntries < 100; ntries++) { 1177 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1178 if (reg & R92S_EFUSE_CTRL_VALID) 1179 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 1180 rsu_ms_delay(sc, 1); 1181 } 1182 device_printf(sc->sc_dev, 1183 "could not read efuse byte at address 0x%x\n", addr); 1184 return (0xff); 1185 } 1186 1187 static int 1188 rsu_read_rom(struct rsu_softc *sc) 1189 { 1190 uint8_t *rom = sc->rom; 1191 uint16_t addr = 0; 1192 uint32_t reg; 1193 uint8_t off, msk; 1194 int i; 1195 1196 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 1197 reg = rsu_read_1(sc, R92S_EE_9346CR); 1198 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 1199 return (EIO); 1200 1201 /* Turn on 2.5V to prevent eFuse leakage. */ 1202 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 1203 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 1204 rsu_ms_delay(sc, 1); 1205 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 1206 1207 /* Read full ROM image. */ 1208 memset(&sc->rom, 0xff, sizeof(sc->rom)); 1209 while (addr < 512) { 1210 reg = rsu_efuse_read_1(sc, addr); 1211 if (reg == 0xff) 1212 break; 1213 addr++; 1214 off = reg >> 4; 1215 msk = reg & 0xf; 1216 for (i = 0; i < 4; i++) { 1217 if (msk & (1 << i)) 1218 continue; 1219 rom[off * 8 + i * 2 + 0] = 1220 rsu_efuse_read_1(sc, addr); 1221 addr++; 1222 rom[off * 8 + i * 2 + 1] = 1223 rsu_efuse_read_1(sc, addr); 1224 addr++; 1225 } 1226 } 1227 #ifdef USB_DEBUG 1228 if (rsu_debug & RSU_DEBUG_RESET) { 1229 /* Dump ROM content. */ 1230 printf("\n"); 1231 for (i = 0; i < sizeof(sc->rom); i++) 1232 printf("%02x:", rom[i]); 1233 printf("\n"); 1234 } 1235 #endif 1236 return (0); 1237 } 1238 1239 static int 1240 rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 1241 { 1242 const uint8_t which = RSU_H2C_ENDPOINT; 1243 struct rsu_data *data; 1244 struct r92s_tx_desc *txd; 1245 struct r92s_fw_cmd_hdr *cmd; 1246 int cmdsz; 1247 int xferlen; 1248 1249 RSU_ASSERT_LOCKED(sc); 1250 1251 data = rsu_getbuf(sc); 1252 if (data == NULL) 1253 return (ENOMEM); 1254 1255 /* Blank the entire payload, just to be safe */ 1256 memset(data->buf, '\0', RSU_TXBUFSZ); 1257 1258 /* Round-up command length to a multiple of 8 bytes. */ 1259 /* XXX TODO: is this required? */ 1260 cmdsz = (len + 7) & ~7; 1261 1262 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 1263 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 1264 memset(data->buf, 0, xferlen); 1265 1266 /* Setup Tx descriptor. */ 1267 txd = (struct r92s_tx_desc *)data->buf; 1268 txd->txdw0 = htole32( 1269 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1270 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 1271 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1272 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 1273 1274 /* Setup command header. */ 1275 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 1276 cmd->len = htole16(cmdsz); 1277 cmd->code = code; 1278 cmd->seq = sc->cmd_seq; 1279 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 1280 1281 /* Copy command payload. */ 1282 memcpy(&cmd[1], buf, len); 1283 1284 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FWCMD, 1285 "%s: Tx cmd code=0x%x len=0x%x\n", 1286 __func__, code, cmdsz); 1287 data->buflen = xferlen; 1288 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 1289 usbd_transfer_start(sc->sc_xfer[which]); 1290 1291 return (0); 1292 } 1293 1294 /* ARGSUSED */ 1295 static void 1296 rsu_calib_task(void *arg, int pending __unused) 1297 { 1298 struct rsu_softc *sc = arg; 1299 #ifdef notyet 1300 uint32_t reg; 1301 #endif 1302 1303 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: running calibration task\n", 1304 __func__); 1305 1306 RSU_LOCK(sc); 1307 #ifdef notyet 1308 /* Read WPS PBC status. */ 1309 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 1310 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 1311 rsu_write_1(sc, R92S_GPIO_IO_SEL, 1312 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 1313 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 1314 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 1315 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "WPS PBC is pushed\n"); 1316 #endif 1317 /* Read current signal level. */ 1318 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 1319 sc->sc_currssi = rsu_read_4(sc, R92S_IOCMD_DATA); 1320 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: RSSI=%d (%d)\n", 1321 __func__, sc->sc_currssi, 1322 rsu_hwrssi_to_rssi(sc, sc->sc_currssi)); 1323 } 1324 if (sc->sc_calibrating) 1325 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1326 RSU_UNLOCK(sc); 1327 } 1328 1329 static void 1330 rsu_tx_task(void *arg, int pending __unused) 1331 { 1332 struct rsu_softc *sc = arg; 1333 1334 RSU_LOCK(sc); 1335 _rsu_start(sc); 1336 RSU_UNLOCK(sc); 1337 } 1338 1339 #define RSU_PWR_UNKNOWN 0x0 1340 #define RSU_PWR_ACTIVE 0x1 1341 #define RSU_PWR_OFF 0x2 1342 #define RSU_PWR_SLEEP 0x3 1343 1344 /* 1345 * Set the current power state. 1346 * 1347 * The rtlwifi code doesn't do this so aggressively; it 1348 * waits for an idle period after association with 1349 * no traffic before doing this. 1350 * 1351 * For now - it's on in all states except RUN, and 1352 * in RUN it'll transition to allow sleep. 1353 */ 1354 1355 struct r92s_pwr_cmd { 1356 uint8_t mode; 1357 uint8_t smart_ps; 1358 uint8_t bcn_pass_time; 1359 }; 1360 1361 static int 1362 rsu_set_fw_power_state(struct rsu_softc *sc, int state) 1363 { 1364 struct r92s_set_pwr_mode cmd; 1365 //struct r92s_pwr_cmd cmd; 1366 int error; 1367 1368 RSU_ASSERT_LOCKED(sc); 1369 1370 /* only change state if required */ 1371 if (sc->sc_curpwrstate == state) 1372 return (0); 1373 1374 memset(&cmd, 0, sizeof(cmd)); 1375 1376 switch (state) { 1377 case RSU_PWR_ACTIVE: 1378 /* Force the hardware awake */ 1379 rsu_write_1(sc, R92S_USB_HRPWM, 1380 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 1381 cmd.mode = R92S_PS_MODE_ACTIVE; 1382 break; 1383 case RSU_PWR_SLEEP: 1384 cmd.mode = R92S_PS_MODE_DTIM; /* XXX configurable? */ 1385 cmd.smart_ps = 1; /* XXX 2 if doing p2p */ 1386 cmd.bcn_pass_time = 5; /* in 100mS usb.c, linux/rtlwifi */ 1387 break; 1388 case RSU_PWR_OFF: 1389 cmd.mode = R92S_PS_MODE_RADIOOFF; 1390 break; 1391 default: 1392 device_printf(sc->sc_dev, "%s: unknown ps mode (%d)\n", 1393 __func__, 1394 state); 1395 return (ENXIO); 1396 } 1397 1398 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1399 "%s: setting ps mode to %d (mode %d)\n", 1400 __func__, state, cmd.mode); 1401 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 1402 if (error == 0) 1403 sc->sc_curpwrstate = state; 1404 1405 return (error); 1406 } 1407 1408 static void 1409 rsu_set_led(struct rsu_softc *sc, int on) 1410 { 1411 rsu_write_1(sc, R92S_LEDCFG, 1412 (rsu_read_1(sc, R92S_LEDCFG) & 0xf0) | (!on << 3)); 1413 } 1414 1415 static int 1416 rsu_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, 1417 int arg) 1418 { 1419 struct ieee80211com *ic = vap->iv_ic; 1420 struct rsu_softc *sc = ic->ic_softc; 1421 struct rsu_vap *uvp = RSU_VAP(vap); 1422 1423 if (vap->iv_state != nstate) { 1424 IEEE80211_UNLOCK(ic); 1425 RSU_LOCK(sc); 1426 1427 switch (nstate) { 1428 case IEEE80211_S_INIT: 1429 sc->sc_vap_is_running = 0; 1430 rsu_set_led(sc, 0); 1431 break; 1432 case IEEE80211_S_RUN: 1433 sc->sc_vap_is_running = 1; 1434 rsu_set_led(sc, 1); 1435 break; 1436 default: 1437 /* NOTREACHED */ 1438 break; 1439 } 1440 rsu_rxfilter_refresh(sc); 1441 1442 RSU_UNLOCK(sc); 1443 IEEE80211_LOCK(ic); 1444 } 1445 1446 return (uvp->newstate(vap, nstate, arg)); 1447 } 1448 1449 static int 1450 rsu_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1451 { 1452 struct rsu_vap *uvp = RSU_VAP(vap); 1453 struct ieee80211com *ic = vap->iv_ic; 1454 struct rsu_softc *sc = ic->ic_softc; 1455 struct ieee80211_node *ni; 1456 struct ieee80211_rateset *rs; 1457 enum ieee80211_state ostate; 1458 int error, startcal = 0; 1459 1460 ostate = vap->iv_state; 1461 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: %s -> %s\n", 1462 __func__, 1463 ieee80211_state_name[ostate], 1464 ieee80211_state_name[nstate]); 1465 1466 IEEE80211_UNLOCK(ic); 1467 if (ostate == IEEE80211_S_RUN) { 1468 RSU_LOCK(sc); 1469 /* Stop calibration. */ 1470 sc->sc_calibrating = 0; 1471 1472 /* Pause Tx for AC queues. */ 1473 rsu_write_1(sc, R92S_TXPAUSE, R92S_TXPAUSE_AC); 1474 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1475 1476 RSU_UNLOCK(sc); 1477 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 1478 taskqueue_drain(taskqueue_thread, &sc->tx_task); 1479 RSU_LOCK(sc); 1480 /* Disassociate from our current BSS. */ 1481 rsu_disconnect(sc); 1482 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1483 1484 /* Refresh Rx filter (may be modified by firmware). */ 1485 sc->sc_vap_is_running = 0; 1486 rsu_rxfilter_refresh(sc); 1487 1488 /* Reinstall static keys. */ 1489 if (sc->sc_running) 1490 rsu_reinit_static_keys(sc); 1491 } else 1492 RSU_LOCK(sc); 1493 switch (nstate) { 1494 case IEEE80211_S_INIT: 1495 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1496 break; 1497 case IEEE80211_S_AUTH: 1498 ni = ieee80211_ref_node(vap->iv_bss); 1499 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1500 error = rsu_join_bss(sc, ni); 1501 ieee80211_free_node(ni); 1502 if (error != 0) { 1503 device_printf(sc->sc_dev, 1504 "could not send join command\n"); 1505 } 1506 break; 1507 case IEEE80211_S_RUN: 1508 /* Flush all AC queues. */ 1509 rsu_write_1(sc, R92S_TXPAUSE, 0); 1510 1511 ni = ieee80211_ref_node(vap->iv_bss); 1512 rs = &ni->ni_rates; 1513 /* Indicate highest supported rate. */ 1514 ni->ni_txrate = rs->rs_rates[rs->rs_nrates - 1]; 1515 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1516 ieee80211_free_node(ni); 1517 startcal = 1; 1518 break; 1519 default: 1520 break; 1521 } 1522 if (startcal != 0) { 1523 sc->sc_calibrating = 1; 1524 /* Start periodic calibration. */ 1525 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, 1526 hz); 1527 } 1528 RSU_UNLOCK(sc); 1529 IEEE80211_LOCK(ic); 1530 return (uvp->newstate(vap, nstate, arg)); 1531 } 1532 1533 static int 1534 rsu_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1535 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1536 { 1537 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1538 int is_checked = 0; 1539 1540 if (&vap->iv_nw_keys[0] <= k && 1541 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1542 *keyix = ieee80211_crypto_get_key_wepidx(vap, k); 1543 } else { 1544 if (vap->iv_opmode != IEEE80211_M_STA) { 1545 *keyix = 0; 1546 /* TODO: obtain keyix from node id */ 1547 is_checked = 1; 1548 k->wk_flags |= IEEE80211_KEY_SWCRYPT; 1549 } else 1550 *keyix = R92S_MACID_BSS; 1551 } 1552 1553 if (!is_checked) { 1554 RSU_LOCK(sc); 1555 if (isset(sc->keys_bmap, *keyix)) { 1556 device_printf(sc->sc_dev, 1557 "%s: key slot %d is already used!\n", 1558 __func__, *keyix); 1559 RSU_UNLOCK(sc); 1560 return (0); 1561 } 1562 setbit(sc->keys_bmap, *keyix); 1563 RSU_UNLOCK(sc); 1564 } 1565 1566 *rxkeyix = *keyix; 1567 1568 return (1); 1569 } 1570 1571 static int 1572 rsu_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k, 1573 int set) 1574 { 1575 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1576 int ret; 1577 1578 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 1579 /* Not for us. */ 1580 return (1); 1581 } 1582 1583 /* Handle group keys. */ 1584 if (&vap->iv_nw_keys[0] <= k && 1585 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1586 KASSERT(k->wk_keyix < nitems(sc->group_keys), 1587 ("keyix %u > %zu\n", k->wk_keyix, nitems(sc->group_keys))); 1588 1589 RSU_LOCK(sc); 1590 sc->group_keys[k->wk_keyix] = (set ? k : NULL); 1591 if (!sc->sc_running) { 1592 /* Static keys will be set during device startup. */ 1593 RSU_UNLOCK(sc); 1594 return (1); 1595 } 1596 1597 if (set) 1598 ret = rsu_set_key_group(sc, k); 1599 else 1600 ret = rsu_delete_key(sc, k->wk_keyix); 1601 RSU_UNLOCK(sc); 1602 1603 return (!ret); 1604 } 1605 1606 if (set) { 1607 /* wait for pending key removal */ 1608 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 1609 1610 RSU_LOCK(sc); 1611 ret = rsu_set_key_pair(sc, k); 1612 RSU_UNLOCK(sc); 1613 } else { 1614 RSU_DELKEY_BMAP_LOCK(sc); 1615 setbit(sc->free_keys_bmap, k->wk_keyix); 1616 RSU_DELKEY_BMAP_UNLOCK(sc); 1617 1618 /* workaround ieee80211_node_delucastkey() locking */ 1619 taskqueue_enqueue(taskqueue_thread, &sc->del_key_task); 1620 ret = 0; /* fake success */ 1621 } 1622 1623 return (!ret); 1624 } 1625 1626 static int 1627 rsu_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1628 { 1629 return (rsu_process_key(vap, k, 1)); 1630 } 1631 1632 static int 1633 rsu_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1634 { 1635 return (rsu_process_key(vap, k, 0)); 1636 } 1637 1638 static int 1639 rsu_cam_read(struct rsu_softc *sc, uint8_t addr, uint32_t *val) 1640 { 1641 int ntries; 1642 1643 rsu_write_4(sc, R92S_CAMCMD, 1644 R92S_CAMCMD_POLLING | SM(R92S_CAMCMD_ADDR, addr)); 1645 for (ntries = 0; ntries < 10; ntries++) { 1646 if (!(rsu_read_4(sc, R92S_CAMCMD) & R92S_CAMCMD_POLLING)) 1647 break; 1648 1649 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1650 } 1651 if (ntries == 10) { 1652 device_printf(sc->sc_dev, 1653 "%s: cannot read CAM entry at address %02X\n", 1654 __func__, addr); 1655 return (ETIMEDOUT); 1656 } 1657 1658 *val = rsu_read_4(sc, R92S_CAMREAD); 1659 1660 return (0); 1661 } 1662 1663 static void 1664 rsu_cam_write(struct rsu_softc *sc, uint8_t addr, uint32_t data) 1665 { 1666 1667 rsu_write_4(sc, R92S_CAMWRITE, data); 1668 rsu_write_4(sc, R92S_CAMCMD, 1669 R92S_CAMCMD_POLLING | R92S_CAMCMD_WRITE | 1670 SM(R92S_CAMCMD_ADDR, addr)); 1671 } 1672 1673 static int 1674 rsu_key_check(struct rsu_softc *sc, ieee80211_keyix keyix, int is_valid) 1675 { 1676 uint32_t val; 1677 int error, ntries; 1678 1679 for (ntries = 0; ntries < 20; ntries++) { 1680 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1681 1682 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1683 if (error != 0) { 1684 device_printf(sc->sc_dev, 1685 "%s: cannot check key status!\n", __func__); 1686 return (error); 1687 } 1688 if (((val & R92S_CAM_VALID) == 0) ^ is_valid) 1689 break; 1690 } 1691 if (ntries == 20) { 1692 device_printf(sc->sc_dev, 1693 "%s: key %d is %s marked as valid, rejecting request\n", 1694 __func__, keyix, is_valid ? "not" : "still"); 1695 return (EIO); 1696 } 1697 1698 return (0); 1699 } 1700 1701 /* 1702 * Map net80211 cipher to RTL8712 security mode. 1703 */ 1704 static uint8_t 1705 rsu_crypto_mode(struct rsu_softc *sc, u_int cipher, int keylen) 1706 { 1707 switch (cipher) { 1708 case IEEE80211_CIPHER_WEP: 1709 return keylen < 8 ? R92S_KEY_ALGO_WEP40 : R92S_KEY_ALGO_WEP104; 1710 case IEEE80211_CIPHER_TKIP: 1711 return R92S_KEY_ALGO_TKIP; 1712 case IEEE80211_CIPHER_AES_CCM: 1713 return R92S_KEY_ALGO_AES; 1714 default: 1715 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1716 return R92S_KEY_ALGO_INVALID; 1717 } 1718 } 1719 1720 static int 1721 rsu_set_key_group(struct rsu_softc *sc, const struct ieee80211_key *k) 1722 { 1723 struct r92s_fw_cmd_set_key key; 1724 uint8_t algo; 1725 int error; 1726 1727 RSU_ASSERT_LOCKED(sc); 1728 1729 /* Map net80211 cipher to HW crypto algorithm. */ 1730 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1731 if (algo == R92S_KEY_ALGO_INVALID) 1732 return (EINVAL); 1733 1734 memset(&key, 0, sizeof(key)); 1735 key.algo = algo; 1736 key.cam_id = k->wk_keyix; 1737 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1738 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1739 1740 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1741 "%s: keyix %u, group %u, algo %u/%u, flags %04X, len %u, " 1742 "macaddr %s\n", __func__, key.cam_id, key.grpkey, 1743 k->wk_cipher->ic_cipher, key.algo, k->wk_flags, k->wk_keylen, 1744 ether_sprintf(k->wk_macaddr)); 1745 1746 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1747 if (error != 0) { 1748 device_printf(sc->sc_dev, 1749 "%s: cannot send firmware command, error %d\n", 1750 __func__, error); 1751 return (error); 1752 } 1753 1754 return (rsu_key_check(sc, k->wk_keyix, 1)); 1755 } 1756 1757 static int 1758 rsu_set_key_pair(struct rsu_softc *sc, const struct ieee80211_key *k) 1759 { 1760 struct r92s_fw_cmd_set_key_mac key; 1761 uint8_t algo; 1762 int error; 1763 1764 RSU_ASSERT_LOCKED(sc); 1765 1766 if (!sc->sc_running) 1767 return (ESHUTDOWN); 1768 1769 /* Map net80211 cipher to HW crypto algorithm. */ 1770 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1771 if (algo == R92S_KEY_ALGO_INVALID) 1772 return (EINVAL); 1773 1774 memset(&key, 0, sizeof(key)); 1775 key.algo = algo; 1776 memcpy(key.macaddr, k->wk_macaddr, sizeof(key.macaddr)); 1777 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1778 1779 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1780 "%s: keyix %u, algo %u/%u, flags %04X, len %u, macaddr %s\n", 1781 __func__, k->wk_keyix, k->wk_cipher->ic_cipher, key.algo, 1782 k->wk_flags, k->wk_keylen, ether_sprintf(key.macaddr)); 1783 1784 error = rsu_fw_cmd(sc, R92S_CMD_SET_STA_KEY, &key, sizeof(key)); 1785 if (error != 0) { 1786 device_printf(sc->sc_dev, 1787 "%s: cannot send firmware command, error %d\n", 1788 __func__, error); 1789 return (error); 1790 } 1791 1792 return (rsu_key_check(sc, k->wk_keyix, 1)); 1793 } 1794 1795 static int 1796 rsu_reinit_static_keys(struct rsu_softc *sc) 1797 { 1798 int i, error; 1799 1800 for (i = 0; i < nitems(sc->group_keys); i++) { 1801 if (sc->group_keys[i] != NULL) { 1802 error = rsu_set_key_group(sc, sc->group_keys[i]); 1803 if (error != 0) { 1804 device_printf(sc->sc_dev, 1805 "%s: failed to set static key %d, " 1806 "error %d\n", __func__, i, error); 1807 return (error); 1808 } 1809 } 1810 } 1811 1812 return (0); 1813 } 1814 1815 static int 1816 rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix keyix) 1817 { 1818 struct r92s_fw_cmd_set_key key; 1819 uint32_t val; 1820 int error; 1821 1822 RSU_ASSERT_LOCKED(sc); 1823 1824 if (!sc->sc_running) 1825 return (0); 1826 1827 /* check if it was automatically removed by firmware */ 1828 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1829 if (error == 0 && (val & R92S_CAM_VALID) == 0) { 1830 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1831 "%s: key %u does not exist\n", __func__, keyix); 1832 clrbit(sc->keys_bmap, keyix); 1833 return (0); 1834 } 1835 1836 memset(&key, 0, sizeof(key)); 1837 key.cam_id = keyix; 1838 1839 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1840 "%s: removing key %u\n", __func__, key.cam_id); 1841 1842 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1843 if (error != 0) { 1844 device_printf(sc->sc_dev, 1845 "%s: cannot send firmware command, error %d\n", 1846 __func__, error); 1847 goto finish; 1848 } 1849 1850 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(5)); 1851 1852 /* 1853 * Clear 'valid' bit manually (cannot be done via firmware command). 1854 * Used for key check + when firmware command cannot be sent. 1855 */ 1856 finish: 1857 rsu_cam_write(sc, R92S_CAM_CTL0(keyix), 0); 1858 1859 clrbit(sc->keys_bmap, keyix); 1860 1861 return (rsu_key_check(sc, keyix, 0)); 1862 } 1863 1864 static void 1865 rsu_delete_key_pair_cb(void *arg, int pending __unused) 1866 { 1867 struct rsu_softc *sc = arg; 1868 int i; 1869 1870 RSU_DELKEY_BMAP_LOCK(sc); 1871 for (i = IEEE80211_WEP_NKID; i < R92S_CAM_ENTRY_LIMIT; i++) { 1872 if (isset(sc->free_keys_bmap, i)) { 1873 RSU_DELKEY_BMAP_UNLOCK(sc); 1874 1875 RSU_LOCK(sc); 1876 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1877 "%s: calling rsu_delete_key() with keyix = %d\n", 1878 __func__, i); 1879 (void) rsu_delete_key(sc, i); 1880 RSU_UNLOCK(sc); 1881 1882 RSU_DELKEY_BMAP_LOCK(sc); 1883 clrbit(sc->free_keys_bmap, i); 1884 1885 /* bmap can be changed */ 1886 i = IEEE80211_WEP_NKID - 1; 1887 continue; 1888 } 1889 } 1890 RSU_DELKEY_BMAP_UNLOCK(sc); 1891 } 1892 1893 static int 1894 rsu_site_survey(struct rsu_softc *sc, struct ieee80211_scan_ssid *ssid) 1895 { 1896 struct r92s_fw_cmd_sitesurvey cmd; 1897 1898 RSU_ASSERT_LOCKED(sc); 1899 1900 memset(&cmd, 0, sizeof(cmd)); 1901 /* TODO: passive channels? */ 1902 if (sc->sc_active_scan) 1903 cmd.active = htole32(1); 1904 cmd.limit = htole32(48); 1905 1906 if (ssid != NULL) { 1907 sc->sc_extra_scan = 1; 1908 cmd.ssidlen = htole32(ssid->len); 1909 memcpy(cmd.ssid, ssid->ssid, ssid->len); 1910 } 1911 #ifdef USB_DEBUG 1912 if (rsu_debug & (RSU_DEBUG_SCAN | RSU_DEBUG_FWCMD)) { 1913 device_printf(sc->sc_dev, 1914 "sending site survey command, active %d", 1915 le32toh(cmd.active)); 1916 if (ssid != NULL) { 1917 printf(", ssid: "); 1918 ieee80211_print_essid(cmd.ssid, le32toh(cmd.ssidlen)); 1919 } 1920 printf("\n"); 1921 } 1922 #endif 1923 return (rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd))); 1924 } 1925 1926 static int 1927 rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1928 { 1929 struct ieee80211com *ic = &sc->sc_ic; 1930 struct ieee80211vap *vap = ni->ni_vap; 1931 struct ndis_wlan_bssid_ex *bss; 1932 struct ndis_802_11_fixed_ies *fixed; 1933 struct r92s_fw_cmd_auth auth; 1934 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1935 uint8_t *frm; 1936 uint8_t opmode; 1937 int error; 1938 1939 RSU_ASSERT_LOCKED(sc); 1940 1941 /* Let the FW decide the opmode based on the capinfo field. */ 1942 opmode = NDIS802_11AUTOUNKNOWN; 1943 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1944 "%s: setting operating mode to %d\n", 1945 __func__, opmode); 1946 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1947 if (error != 0) 1948 return (error); 1949 1950 memset(&auth, 0, sizeof(auth)); 1951 if (vap->iv_flags & IEEE80211_F_WPA) { 1952 auth.mode = R92S_AUTHMODE_WPA; 1953 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1954 } else 1955 auth.mode = R92S_AUTHMODE_OPEN; 1956 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1957 "%s: setting auth mode to %d\n", 1958 __func__, auth.mode); 1959 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1960 if (error != 0) 1961 return (error); 1962 1963 memset(buf, 0, sizeof(buf)); 1964 bss = (struct ndis_wlan_bssid_ex *)buf; 1965 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1966 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1967 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1968 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1969 bss->privacy = htole32(1); 1970 bss->rssi = htole32(ni->ni_avgrssi); 1971 if (ic->ic_curmode == IEEE80211_MODE_11B) 1972 bss->networktype = htole32(NDIS802_11DS); 1973 else 1974 bss->networktype = htole32(NDIS802_11OFDM24); 1975 bss->config.len = htole32(sizeof(bss->config)); 1976 bss->config.bintval = htole32(ni->ni_intval); 1977 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1978 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1979 /* XXX verify how this is supposed to look! */ 1980 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1981 ni->ni_rates.rs_nrates); 1982 /* Write the fixed fields of the beacon frame. */ 1983 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1984 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1985 fixed->bintval = htole16(ni->ni_intval); 1986 fixed->capabilities = htole16(ni->ni_capinfo); 1987 /* Write IEs to be included in the association request. */ 1988 frm = (uint8_t *)&fixed[1]; 1989 frm = ieee80211_add_rsn(frm, vap); 1990 frm = ieee80211_add_wpa(frm, vap); 1991 frm = ieee80211_add_qos(frm, ni); 1992 if ((ic->ic_flags & IEEE80211_F_WME) && 1993 (ni->ni_ies.wme_ie != NULL)) 1994 frm = ieee80211_add_wme_info(frm, &ic->ic_wme); 1995 if (ni->ni_flags & IEEE80211_NODE_HT) { 1996 frm = ieee80211_add_htcap(frm, ni); 1997 frm = ieee80211_add_htinfo(frm, ni); 1998 } 1999 bss->ieslen = htole32(frm - (uint8_t *)fixed); 2000 bss->len = htole32(((frm - buf) + 3) & ~3); 2001 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 2002 "%s: sending join bss command to %s chan %d\n", 2003 __func__, 2004 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 2005 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 2006 } 2007 2008 static int 2009 rsu_disconnect(struct rsu_softc *sc) 2010 { 2011 uint32_t zero = 0; /* :-) */ 2012 2013 /* Disassociate from our current BSS. */ 2014 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2015 "%s: sending disconnect command\n", __func__); 2016 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 2017 } 2018 2019 /* 2020 * Map the hardware provided RSSI value to a signal level. 2021 * For the most part it's just something we divide by and cap 2022 * so it doesn't overflow the representation by net80211. 2023 */ 2024 static int 2025 rsu_hwrssi_to_rssi(struct rsu_softc *sc, int hw_rssi) 2026 { 2027 int v; 2028 2029 if (hw_rssi == 0) 2030 return (0); 2031 v = hw_rssi >> 4; 2032 if (v > 80) 2033 v = 80; 2034 return (v); 2035 } 2036 2037 CTASSERT(MCLBYTES > sizeof(struct ieee80211_frame)); 2038 2039 static void 2040 rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 2041 { 2042 struct ieee80211com *ic = &sc->sc_ic; 2043 struct ieee80211_frame *wh; 2044 struct ndis_wlan_bssid_ex *bss; 2045 struct ieee80211_rx_stats rxs; 2046 struct mbuf *m; 2047 uint32_t ieslen; 2048 uint32_t pktlen; 2049 2050 if (__predict_false(len < sizeof(*bss))) 2051 return; 2052 bss = (struct ndis_wlan_bssid_ex *)buf; 2053 ieslen = le32toh(bss->ieslen); 2054 /* range check length of information element */ 2055 if (__predict_false(ieslen > (uint32_t)(len - sizeof(*bss)))) 2056 return; 2057 2058 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2059 "%s: found BSS %s: len=%d chan=%d inframode=%d " 2060 "networktype=%d privacy=%d, RSSI=%d\n", 2061 __func__, 2062 ether_sprintf(bss->macaddr), ieslen, 2063 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 2064 le32toh(bss->networktype), le32toh(bss->privacy), 2065 le32toh(bss->rssi)); 2066 2067 /* Build a fake beacon frame to let net80211 do all the parsing. */ 2068 /* XXX TODO: just call the new scan API methods! */ 2069 if (__predict_false(ieslen > (size_t)(MCLBYTES - sizeof(*wh)))) 2070 return; 2071 pktlen = sizeof(*wh) + ieslen; 2072 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2073 if (__predict_false(m == NULL)) 2074 return; 2075 wh = mtod(m, struct ieee80211_frame *); 2076 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2077 IEEE80211_FC0_SUBTYPE_BEACON; 2078 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2079 USETW(wh->i_dur, 0); 2080 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 2081 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 2082 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 2083 *(uint16_t *)wh->i_seq = 0; 2084 memcpy(&wh[1], (uint8_t *)&bss[1], ieslen); 2085 2086 /* Finalize mbuf. */ 2087 m->m_pkthdr.len = m->m_len = pktlen; 2088 2089 /* Set channel flags for input path */ 2090 bzero(&rxs, sizeof(rxs)); 2091 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 2092 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2093 rxs.c_ieee = le32toh(bss->config.dsconfig); 2094 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 2095 /* This is a number from 0..100; so let's just divide it down a bit */ 2096 rxs.c_rssi = le32toh(bss->rssi) / 2; 2097 rxs.c_nf = -96; 2098 if (ieee80211_add_rx_params(m, &rxs) == 0) 2099 return; 2100 2101 /* XXX avoid a LOR */ 2102 RSU_UNLOCK(sc); 2103 ieee80211_input_mimo_all(ic, m); 2104 RSU_LOCK(sc); 2105 } 2106 2107 static void 2108 rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 2109 { 2110 struct ieee80211com *ic = &sc->sc_ic; 2111 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2112 struct ieee80211_node *ni = vap->iv_bss; 2113 struct r92s_event_join_bss *rsp; 2114 uint32_t tmp; 2115 int res; 2116 2117 if (__predict_false(len < sizeof(*rsp))) 2118 return; 2119 rsp = (struct r92s_event_join_bss *)buf; 2120 res = (int)le32toh(rsp->join_res); 2121 2122 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2123 "%s: Rx join BSS event len=%d res=%d\n", 2124 __func__, len, res); 2125 2126 /* 2127 * XXX Don't do this; there's likely a better way to tell 2128 * the caller we failed. 2129 */ 2130 if (res <= 0) { 2131 RSU_UNLOCK(sc); 2132 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2133 RSU_LOCK(sc); 2134 return; 2135 } 2136 2137 tmp = le32toh(rsp->associd); 2138 if (tmp >= vap->iv_max_aid) { 2139 RSU_DPRINTF(sc, RSU_DEBUG_ANY, "Assoc ID overflow\n"); 2140 tmp = 1; 2141 } 2142 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2143 "%s: associated with %s associd=%d\n", 2144 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 2145 /* XXX is this required? What's the top two bits for again? */ 2146 ni->ni_associd = tmp | 0xc000; 2147 2148 /* Refresh Rx filter (was changed by firmware). */ 2149 sc->sc_vap_is_running = 1; 2150 rsu_rxfilter_refresh(sc); 2151 2152 RSU_UNLOCK(sc); 2153 ieee80211_new_state(vap, IEEE80211_S_RUN, 2154 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 2155 RSU_LOCK(sc); 2156 } 2157 2158 static void 2159 rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 2160 { 2161 struct ieee80211com *ic = &sc->sc_ic; 2162 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2163 struct r92s_add_ba_event *ba = (void *) buf; 2164 struct ieee80211_node *ni; 2165 2166 if (len < sizeof(*ba)) { 2167 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 2168 return; 2169 } 2170 2171 if (vap == NULL) 2172 return; 2173 2174 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: mac=%s, tid=%d, ssn=%d\n", 2175 __func__, 2176 ether_sprintf(ba->mac_addr), 2177 (int) ba->tid, 2178 (int) le16toh(ba->ssn)); 2179 2180 /* XXX do node lookup; this is STA specific */ 2181 2182 ni = ieee80211_ref_node(vap->iv_bss); 2183 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 2184 ieee80211_free_node(ni); 2185 } 2186 2187 static void 2188 rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 2189 { 2190 struct ieee80211com *ic = &sc->sc_ic; 2191 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2192 2193 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2194 "%s: Rx event code=%d len=%d\n", __func__, code, len); 2195 switch (code) { 2196 case R92S_EVT_SURVEY: 2197 rsu_event_survey(sc, buf, len); 2198 break; 2199 case R92S_EVT_SURVEY_DONE: 2200 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2201 "%s: %s scan done, found %d BSS\n", 2202 __func__, sc->sc_extra_scan ? "direct" : "broadcast", 2203 le32toh(*(uint32_t *)buf)); 2204 if (sc->sc_extra_scan == 1) { 2205 /* Send broadcast probe request. */ 2206 sc->sc_extra_scan = 0; 2207 if (vap != NULL && rsu_site_survey(sc, NULL) != 0) { 2208 RSU_UNLOCK(sc); 2209 ieee80211_cancel_scan(vap); 2210 RSU_LOCK(sc); 2211 } 2212 break; 2213 } 2214 if (vap != NULL) { 2215 RSU_UNLOCK(sc); 2216 ieee80211_scan_done(vap); 2217 RSU_LOCK(sc); 2218 } 2219 break; 2220 case R92S_EVT_JOIN_BSS: 2221 if (vap->iv_state == IEEE80211_S_AUTH) 2222 rsu_event_join_bss(sc, buf, len); 2223 break; 2224 case R92S_EVT_DEL_STA: 2225 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 2226 "%s: disassociated from %s\n", __func__, 2227 ether_sprintf(buf)); 2228 if (vap->iv_state == IEEE80211_S_RUN && 2229 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 2230 RSU_UNLOCK(sc); 2231 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2232 RSU_LOCK(sc); 2233 } 2234 break; 2235 case R92S_EVT_WPS_PBC: 2236 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2237 "%s: WPS PBC pushed.\n", __func__); 2238 break; 2239 case R92S_EVT_FWDBG: 2240 buf[60] = '\0'; 2241 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 2242 break; 2243 case R92S_EVT_ADDBA_REQ_REPORT: 2244 rsu_event_addba_req_report(sc, buf, len); 2245 break; 2246 default: 2247 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 2248 break; 2249 } 2250 } 2251 2252 static void 2253 rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 2254 { 2255 struct r92s_fw_cmd_hdr *cmd; 2256 int cmdsz; 2257 2258 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 2259 2260 /* Skip Rx status. */ 2261 buf += sizeof(struct r92s_rx_stat); 2262 len -= sizeof(struct r92s_rx_stat); 2263 2264 /* Process all events. */ 2265 for (;;) { 2266 /* Check that command header fits. */ 2267 if (__predict_false(len < sizeof(*cmd))) 2268 break; 2269 cmd = (struct r92s_fw_cmd_hdr *)buf; 2270 /* Check that command payload fits. */ 2271 cmdsz = le16toh(cmd->len); 2272 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 2273 break; 2274 2275 /* Process firmware event. */ 2276 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 2277 2278 if (!(cmd->seq & R92S_FW_CMD_MORE)) 2279 break; 2280 buf += sizeof(*cmd) + cmdsz; 2281 len -= sizeof(*cmd) + cmdsz; 2282 } 2283 } 2284 2285 static int8_t 2286 rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 2287 { 2288 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 2289 struct r92s_rx_phystat *phy; 2290 struct r92s_rx_cck *cck; 2291 uint8_t rpt; 2292 int8_t rssi; 2293 2294 if (rate <= 3) { 2295 cck = (struct r92s_rx_cck *)physt; 2296 rpt = (cck->agc_rpt >> 6) & 0x3; 2297 rssi = cck->agc_rpt & 0x3e; 2298 rssi = cckoff[rpt] - rssi; 2299 } else { /* OFDM/HT. */ 2300 phy = (struct r92s_rx_phystat *)physt; 2301 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 2302 } 2303 return (rssi); 2304 } 2305 2306 static struct mbuf * 2307 rsu_rx_copy_to_mbuf(struct rsu_softc *sc, struct r92s_rx_stat *stat, 2308 int totlen) 2309 { 2310 struct ieee80211com *ic = &sc->sc_ic; 2311 struct mbuf *m; 2312 uint32_t rxdw0; 2313 int pktlen; 2314 2315 rxdw0 = le32toh(stat->rxdw0); 2316 if (__predict_false(rxdw0 & (R92S_RXDW0_CRCERR | R92S_RXDW0_ICVERR))) { 2317 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2318 "%s: RX flags error (%s)\n", __func__, 2319 rxdw0 & R92S_RXDW0_CRCERR ? "CRC" : "ICV"); 2320 goto fail; 2321 } 2322 2323 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2324 if (__predict_false(pktlen < sizeof (struct ieee80211_frame_ack))) { 2325 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2326 "%s: frame is too short: %d\n", __func__, pktlen); 2327 goto fail; 2328 } 2329 2330 m = m_get2(totlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2331 if (__predict_false(m == NULL)) { 2332 device_printf(sc->sc_dev, 2333 "%s: could not allocate RX mbuf, totlen %d\n", 2334 __func__, totlen); 2335 goto fail; 2336 } 2337 2338 /* Finalize mbuf. */ 2339 memcpy(mtod(m, uint8_t *), (uint8_t *)stat, totlen); 2340 m->m_pkthdr.len = m->m_len = totlen; 2341 2342 return (m); 2343 fail: 2344 counter_u64_add(ic->ic_ierrors, 1); 2345 return (NULL); 2346 } 2347 2348 static uint32_t 2349 rsu_get_tsf_low(struct rsu_softc *sc) 2350 { 2351 return (rsu_read_4(sc, R92S_TSFTR)); 2352 } 2353 2354 static uint32_t 2355 rsu_get_tsf_high(struct rsu_softc *sc) 2356 { 2357 return (rsu_read_4(sc, R92S_TSFTR + 4)); 2358 } 2359 2360 static struct ieee80211_node * 2361 rsu_rx_frame(struct rsu_softc *sc, struct mbuf *m) 2362 { 2363 struct ieee80211com *ic = &sc->sc_ic; 2364 struct ieee80211_frame_min *wh; 2365 struct ieee80211_rx_stats rxs; 2366 struct r92s_rx_stat *stat; 2367 uint32_t rxdw0, rxdw3; 2368 uint8_t cipher, rate; 2369 int infosz; 2370 int rssi; 2371 2372 stat = mtod(m, struct r92s_rx_stat *); 2373 rxdw0 = le32toh(stat->rxdw0); 2374 rxdw3 = le32toh(stat->rxdw3); 2375 2376 rate = MS(rxdw3, R92S_RXDW3_RATE); 2377 cipher = MS(rxdw0, R92S_RXDW0_CIPHER); 2378 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2379 2380 /* Get RSSI from PHY status descriptor if present. */ 2381 if (infosz != 0 && (rxdw0 & R92S_RXDW0_PHYST)) 2382 rssi = rsu_get_rssi(sc, rate, &stat[1]); 2383 else { 2384 /* Cheat and get the last calibrated RSSI */ 2385 rssi = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 2386 } 2387 2388 /* Hardware does Rx TCP checksum offload. */ 2389 /* 2390 * This flag can be set for some other 2391 * (e.g., EAPOL) frame types, so don't rely on it. 2392 */ 2393 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 2394 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2395 "%s: TCP/IP checksums: %schecked / %schecked\n", 2396 __func__, 2397 (rxdw3 & R92S_RXDW3_TCPCHKRPT) ? "" : "not ", 2398 (rxdw3 & R92S_RXDW3_IPCHKRPT) ? "" : "not "); 2399 2400 /* 2401 * 'IP header checksum valid' bit will not be set if 2402 * the frame was not checked / has incorrect checksum / 2403 * does not have checksum (IPv6). 2404 * 2405 * NB: if DF bit is not set then frame will not be checked. 2406 */ 2407 if (rxdw3 & R92S_RXDW3_IPCHKRPT) { 2408 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2409 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2410 } 2411 2412 /* 2413 * This is independent of the above check. 2414 */ 2415 if (rxdw3 & R92S_RXDW3_TCPCHKRPT) { 2416 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 2417 m->m_pkthdr.csum_flags |= CSUM_PSEUDO_HDR; 2418 m->m_pkthdr.csum_data = 0xffff; 2419 } 2420 } 2421 2422 /* RX flags */ 2423 2424 /* Set channel flags for input path */ 2425 bzero(&rxs, sizeof(rxs)); 2426 2427 /* normal RSSI */ 2428 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2429 rxs.c_rssi = rssi; 2430 rxs.c_nf = -96; 2431 2432 /* Rate */ 2433 if (rate < 12) { 2434 rxs.c_rate = ridx2rate[rate]; 2435 if (RSU_RATE_IS_CCK(rate)) 2436 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2437 else 2438 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2439 } else { 2440 rxs.c_rate = IEEE80211_RATE_MCS | (rate - 12); 2441 rxs.c_pktflags |= IEEE80211_RX_F_HT; 2442 } 2443 2444 if (ieee80211_radiotap_active(ic)) { 2445 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 2446 2447 /* Map HW rate index to 802.11 rate. */ 2448 tap->wr_flags = 0; /* TODO */ 2449 tap->wr_tsft = rsu_get_tsf_high(sc); 2450 if (le32toh(stat->tsf_low) > rsu_get_tsf_low(sc)) 2451 tap->wr_tsft--; 2452 tap->wr_tsft = (uint64_t)htole32(tap->wr_tsft) << 32; 2453 tap->wr_tsft += stat->tsf_low; 2454 2455 tap->wr_rate = rxs.c_rate; 2456 tap->wr_dbm_antsignal = rssi; 2457 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 2458 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 2459 }; 2460 2461 (void) ieee80211_add_rx_params(m, &rxs); 2462 2463 /* Drop descriptor. */ 2464 m_adj(m, sizeof(*stat) + infosz); 2465 wh = mtod(m, struct ieee80211_frame_min *); 2466 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 2467 cipher != R92S_KEY_ALGO_NONE) { 2468 m->m_flags |= M_WEP; 2469 } 2470 2471 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2472 "%s: Rx frame len %d, rate %d, infosz %d\n", 2473 __func__, m->m_len, rate, infosz); 2474 2475 if (m->m_len >= sizeof(*wh)) 2476 return (ieee80211_find_rxnode(ic, wh)); 2477 2478 return (NULL); 2479 } 2480 2481 static struct mbuf * 2482 rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 2483 { 2484 struct r92s_rx_stat *stat; 2485 uint32_t rxdw0; 2486 int totlen, pktlen, infosz, npkts; 2487 struct mbuf *m, *m0 = NULL, *prevm = NULL; 2488 2489 /* 2490 * don't pass packets to the ieee80211 framework if the driver isn't 2491 * RUNNING. 2492 */ 2493 if (!sc->sc_running) 2494 return (NULL); 2495 2496 /* Get the number of encapsulated frames. */ 2497 stat = (struct r92s_rx_stat *)buf; 2498 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 2499 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2500 "%s: Rx %d frames in one chunk\n", __func__, npkts); 2501 2502 /* Process all of them. */ 2503 while (npkts-- > 0) { 2504 if (__predict_false(len < sizeof(*stat))) 2505 break; 2506 stat = (struct r92s_rx_stat *)buf; 2507 rxdw0 = le32toh(stat->rxdw0); 2508 2509 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2510 if (__predict_false(pktlen == 0)) 2511 break; 2512 2513 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2514 2515 /* Make sure everything fits in xfer. */ 2516 totlen = sizeof(*stat) + infosz + pktlen; 2517 if (__predict_false(totlen > len)) 2518 break; 2519 2520 /* Process 802.11 frame. */ 2521 m = rsu_rx_copy_to_mbuf(sc, stat, totlen); 2522 if (m0 == NULL) 2523 m0 = m; 2524 if (prevm == NULL) 2525 prevm = m; 2526 else { 2527 prevm->m_next = m; 2528 prevm = m; 2529 } 2530 /* Next chunk is 128-byte aligned. */ 2531 totlen = (totlen + 127) & ~127; 2532 buf += totlen; 2533 len -= totlen; 2534 } 2535 2536 return (m0); 2537 } 2538 2539 static struct mbuf * 2540 rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data) 2541 { 2542 struct rsu_softc *sc = data->sc; 2543 struct ieee80211com *ic = &sc->sc_ic; 2544 struct r92s_rx_stat *stat; 2545 int len; 2546 2547 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 2548 2549 if (__predict_false(len < sizeof(*stat))) { 2550 RSU_DPRINTF(sc, RSU_DEBUG_RX, "xfer too short %d\n", len); 2551 counter_u64_add(ic->ic_ierrors, 1); 2552 return (NULL); 2553 } 2554 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 2555 stat = (struct r92s_rx_stat *)data->buf; 2556 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 2557 rsu_rx_multi_event(sc, data->buf, len); 2558 /* No packets to process. */ 2559 return (NULL); 2560 } else 2561 return (rsu_rx_multi_frame(sc, data->buf, len)); 2562 } 2563 2564 static void 2565 rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 2566 { 2567 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2568 struct ieee80211com *ic = &sc->sc_ic; 2569 struct ieee80211_node *ni; 2570 struct mbuf *m = NULL, *next; 2571 struct rsu_data *data; 2572 2573 RSU_ASSERT_LOCKED(sc); 2574 2575 switch (USB_GET_STATE(xfer)) { 2576 case USB_ST_TRANSFERRED: 2577 data = STAILQ_FIRST(&sc->sc_rx_active); 2578 if (data == NULL) 2579 goto tr_setup; 2580 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2581 m = rsu_rxeof(xfer, data); 2582 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2583 /* FALLTHROUGH */ 2584 case USB_ST_SETUP: 2585 tr_setup: 2586 data = STAILQ_FIRST(&sc->sc_rx_inactive); 2587 if (data == NULL) { 2588 KASSERT(m == NULL, ("mbuf isn't NULL")); 2589 return; 2590 } 2591 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 2592 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 2593 usbd_xfer_set_frame_data(xfer, 0, data->buf, 2594 usbd_xfer_max_len(xfer)); 2595 usbd_transfer_submit(xfer); 2596 /* 2597 * To avoid LOR we should unlock our private mutex here to call 2598 * ieee80211_input() because here is at the end of a USB 2599 * callback and safe to unlock. 2600 */ 2601 while (m != NULL) { 2602 next = m->m_next; 2603 m->m_next = NULL; 2604 2605 ni = rsu_rx_frame(sc, m); 2606 RSU_UNLOCK(sc); 2607 2608 if (ni != NULL) { 2609 if (ni->ni_flags & IEEE80211_NODE_HT) 2610 m->m_flags |= M_AMPDU; 2611 (void)ieee80211_input_mimo(ni, m); 2612 ieee80211_free_node(ni); 2613 } else 2614 (void)ieee80211_input_mimo_all(ic, m); 2615 2616 RSU_LOCK(sc); 2617 m = next; 2618 } 2619 break; 2620 default: 2621 /* needs it to the inactive queue due to a error. */ 2622 data = STAILQ_FIRST(&sc->sc_rx_active); 2623 if (data != NULL) { 2624 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2625 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2626 } 2627 if (error != USB_ERR_CANCELLED) { 2628 usbd_xfer_set_stall(xfer); 2629 counter_u64_add(ic->ic_ierrors, 1); 2630 goto tr_setup; 2631 } 2632 break; 2633 } 2634 2635 } 2636 2637 static void 2638 rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 2639 { 2640 #ifdef USB_DEBUG 2641 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2642 #endif 2643 2644 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 2645 __func__, 2646 data); 2647 2648 if (data->m) { 2649 /* XXX status? */ 2650 ieee80211_tx_complete(data->ni, data->m, 0); 2651 data->m = NULL; 2652 data->ni = NULL; 2653 } 2654 } 2655 2656 static void 2657 rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 2658 uint8_t which) 2659 { 2660 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2661 struct ieee80211com *ic = &sc->sc_ic; 2662 struct rsu_data *data; 2663 2664 RSU_ASSERT_LOCKED(sc); 2665 2666 switch (USB_GET_STATE(xfer)) { 2667 case USB_ST_TRANSFERRED: 2668 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2669 if (data == NULL) 2670 goto tr_setup; 2671 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 2672 __func__, data); 2673 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2674 rsu_txeof(xfer, data); 2675 rsu_freebuf(sc, data); 2676 /* FALLTHROUGH */ 2677 case USB_ST_SETUP: 2678 tr_setup: 2679 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 2680 if (data == NULL) { 2681 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2682 "%s: empty pending queue sc %p\n", __func__, sc); 2683 return; 2684 } 2685 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 2686 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 2687 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 2688 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2689 "%s: submitting transfer %p\n", 2690 __func__, 2691 data); 2692 usbd_transfer_submit(xfer); 2693 break; 2694 default: 2695 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2696 if (data != NULL) { 2697 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2698 rsu_txeof(xfer, data); 2699 rsu_freebuf(sc, data); 2700 } 2701 counter_u64_add(ic->ic_oerrors, 1); 2702 2703 if (error != USB_ERR_CANCELLED) { 2704 usbd_xfer_set_stall(xfer); 2705 goto tr_setup; 2706 } 2707 break; 2708 } 2709 2710 /* 2711 * XXX TODO: if the queue is low, flush out FF TX frames. 2712 * Remember to unlock the driver for now; net80211 doesn't 2713 * defer it for us. 2714 */ 2715 } 2716 2717 static void 2718 rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 2719 { 2720 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2721 2722 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 2723 2724 /* This kicks the TX taskqueue */ 2725 rsu_start(sc); 2726 } 2727 2728 static void 2729 rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 2730 { 2731 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2732 2733 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 2734 2735 /* This kicks the TX taskqueue */ 2736 rsu_start(sc); 2737 } 2738 2739 static void 2740 rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2741 { 2742 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2743 2744 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2745 2746 /* This kicks the TX taskqueue */ 2747 rsu_start(sc); 2748 } 2749 2750 /* 2751 * Transmit the given frame. 2752 * 2753 * This doesn't free the node or mbuf upon failure. 2754 */ 2755 static int 2756 rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2757 struct mbuf *m0, struct rsu_data *data) 2758 { 2759 struct ieee80211com *ic = &sc->sc_ic; 2760 struct ieee80211vap *vap = ni->ni_vap; 2761 struct ieee80211_frame *wh; 2762 struct ieee80211_key *k = NULL; 2763 struct r92s_tx_desc *txd; 2764 uint8_t type, cipher; 2765 int prio = 0; 2766 uint8_t which; 2767 int hasqos; 2768 int xferlen; 2769 int qid; 2770 2771 RSU_ASSERT_LOCKED(sc); 2772 2773 wh = mtod(m0, struct ieee80211_frame *); 2774 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2775 2776 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2777 __func__, data, m0); 2778 2779 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2780 k = ieee80211_crypto_encap(ni, m0); 2781 if (k == NULL) { 2782 device_printf(sc->sc_dev, 2783 "ieee80211_crypto_encap returns NULL.\n"); 2784 /* XXX we don't expect the fragmented frames */ 2785 return (ENOBUFS); 2786 } 2787 wh = mtod(m0, struct ieee80211_frame *); 2788 } 2789 /* If we have QoS then use it */ 2790 /* XXX TODO: mbuf WME/PRI versus TID? */ 2791 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2792 /* Has QoS */ 2793 prio = M_WME_GETAC(m0); 2794 which = rsu_wme_ac_xfer_map[prio]; 2795 hasqos = 1; 2796 } else { 2797 /* Non-QoS TID */ 2798 /* XXX TODO: tid=0 for non-qos TID? */ 2799 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2800 hasqos = 0; 2801 prio = 0; 2802 } 2803 2804 qid = rsu_ac2qid[prio]; 2805 #if 0 2806 switch (type) { 2807 case IEEE80211_FC0_TYPE_CTL: 2808 case IEEE80211_FC0_TYPE_MGT: 2809 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2810 break; 2811 default: 2812 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2813 break; 2814 } 2815 hasqos = 0; 2816 #endif 2817 2818 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2819 __func__, 2820 prio, 2821 which, 2822 hasqos); 2823 2824 /* Fill Tx descriptor. */ 2825 txd = (struct r92s_tx_desc *)data->buf; 2826 memset(txd, 0, sizeof(*txd)); 2827 2828 txd->txdw0 |= htole32( 2829 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2830 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2831 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2832 2833 txd->txdw1 |= htole32( 2834 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2835 if (!hasqos) 2836 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2837 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWENCRYPT)) { 2838 switch (k->wk_cipher->ic_cipher) { 2839 case IEEE80211_CIPHER_WEP: 2840 cipher = R92S_TXDW1_CIPHER_WEP; 2841 break; 2842 case IEEE80211_CIPHER_TKIP: 2843 cipher = R92S_TXDW1_CIPHER_TKIP; 2844 break; 2845 case IEEE80211_CIPHER_AES_CCM: 2846 cipher = R92S_TXDW1_CIPHER_AES; 2847 break; 2848 default: 2849 cipher = R92S_TXDW1_CIPHER_NONE; 2850 } 2851 txd->txdw1 |= htole32( 2852 SM(R92S_TXDW1_CIPHER, cipher) | 2853 SM(R92S_TXDW1_KEYIDX, k->wk_keyix)); 2854 } 2855 /* XXX todo: set AGGEN bit if appropriate? */ 2856 txd->txdw2 |= htole32(R92S_TXDW2_BK); 2857 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 2858 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2859 /* 2860 * Firmware will use and increment the sequence number for the 2861 * specified priority. 2862 */ 2863 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2864 2865 if (ieee80211_radiotap_active_vap(vap)) { 2866 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2867 2868 tap->wt_flags = 0; 2869 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 2870 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 2871 ieee80211_radiotap_tx(vap, m0); 2872 } 2873 2874 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2875 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2876 2877 data->buflen = xferlen; 2878 data->ni = ni; 2879 data->m = m0; 2880 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2881 2882 /* start transfer, if any */ 2883 usbd_transfer_start(sc->sc_xfer[which]); 2884 return (0); 2885 } 2886 2887 static int 2888 rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2889 { 2890 struct rsu_softc *sc = ic->ic_softc; 2891 int error; 2892 2893 RSU_LOCK(sc); 2894 if (!sc->sc_running) { 2895 RSU_UNLOCK(sc); 2896 return (ENXIO); 2897 } 2898 2899 /* 2900 * XXX TODO: ensure that we treat 'm' as a list of frames 2901 * to transmit! 2902 */ 2903 error = mbufq_enqueue(&sc->sc_snd, m); 2904 if (error) { 2905 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2906 "%s: mbufq_enable: failed (%d)\n", 2907 __func__, 2908 error); 2909 RSU_UNLOCK(sc); 2910 return (error); 2911 } 2912 RSU_UNLOCK(sc); 2913 2914 /* This kicks the TX taskqueue */ 2915 rsu_start(sc); 2916 2917 return (0); 2918 } 2919 2920 static void 2921 rsu_drain_mbufq(struct rsu_softc *sc) 2922 { 2923 struct mbuf *m; 2924 struct ieee80211_node *ni; 2925 2926 RSU_ASSERT_LOCKED(sc); 2927 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2928 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2929 m->m_pkthdr.rcvif = NULL; 2930 ieee80211_free_node(ni); 2931 m_freem(m); 2932 } 2933 } 2934 2935 static void 2936 _rsu_start(struct rsu_softc *sc) 2937 { 2938 struct ieee80211_node *ni; 2939 struct rsu_data *bf; 2940 struct mbuf *m; 2941 2942 RSU_ASSERT_LOCKED(sc); 2943 2944 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2945 bf = rsu_getbuf(sc); 2946 if (bf == NULL) { 2947 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2948 "%s: failed to get buffer\n", __func__); 2949 mbufq_prepend(&sc->sc_snd, m); 2950 break; 2951 } 2952 2953 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2954 m->m_pkthdr.rcvif = NULL; 2955 2956 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2957 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2958 "%s: failed to transmit\n", __func__); 2959 if_inc_counter(ni->ni_vap->iv_ifp, 2960 IFCOUNTER_OERRORS, 1); 2961 rsu_freebuf(sc, bf); 2962 ieee80211_free_node(ni); 2963 m_freem(m); 2964 break; 2965 } 2966 } 2967 } 2968 2969 static void 2970 rsu_start(struct rsu_softc *sc) 2971 { 2972 2973 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 2974 } 2975 2976 static int 2977 rsu_ioctl_net(struct ieee80211com *ic, u_long cmd, void *data) 2978 { 2979 struct rsu_softc *sc = ic->ic_softc; 2980 struct ifreq *ifr = (struct ifreq *)data; 2981 int error; 2982 2983 error = 0; 2984 switch (cmd) { 2985 case SIOCSIFCAP: 2986 { 2987 struct ieee80211vap *vap; 2988 int rxmask; 2989 2990 rxmask = ifr->ifr_reqcap & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 2991 2992 RSU_LOCK(sc); 2993 /* Both RXCSUM bits must be set (or unset). */ 2994 if (sc->sc_rx_checksum_enable && 2995 rxmask != (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { 2996 rxmask = 0; 2997 sc->sc_rx_checksum_enable = 0; 2998 rsu_rxfilter_set(sc, R92S_RCR_TCP_OFFLD_EN, 0); 2999 } else if (!sc->sc_rx_checksum_enable && rxmask != 0) { 3000 rxmask = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 3001 sc->sc_rx_checksum_enable = 1; 3002 rsu_rxfilter_set(sc, 0, R92S_RCR_TCP_OFFLD_EN); 3003 } else { 3004 /* Nothing to do. */ 3005 RSU_UNLOCK(sc); 3006 break; 3007 } 3008 RSU_UNLOCK(sc); 3009 3010 IEEE80211_LOCK(ic); /* XXX */ 3011 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 3012 struct ifnet *ifp = vap->iv_ifp; 3013 3014 ifp->if_capenable &= 3015 ~(IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3016 ifp->if_capenable |= rxmask; 3017 } 3018 IEEE80211_UNLOCK(ic); 3019 break; 3020 } 3021 default: 3022 error = ENOTTY; /* for net80211 */ 3023 break; 3024 } 3025 3026 return (error); 3027 } 3028 3029 static void 3030 rsu_parent(struct ieee80211com *ic) 3031 { 3032 struct rsu_softc *sc = ic->ic_softc; 3033 3034 if (ic->ic_nrunning > 0) { 3035 if (rsu_init(sc) == 0) 3036 ieee80211_start_all(ic); 3037 else { 3038 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3039 if (vap != NULL) 3040 ieee80211_stop(vap); 3041 } 3042 } else 3043 rsu_stop(sc); 3044 } 3045 3046 /* 3047 * Power on sequence for A-cut adapters. 3048 */ 3049 static void 3050 rsu_power_on_acut(struct rsu_softc *sc) 3051 { 3052 uint32_t reg; 3053 3054 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3055 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3056 3057 /* Enable AFE macro block's bandgap and Mbias. */ 3058 rsu_write_1(sc, R92S_AFE_MISC, 3059 rsu_read_1(sc, R92S_AFE_MISC) | 3060 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 3061 /* Enable LDOA15 block. */ 3062 rsu_write_1(sc, R92S_LDOA15_CTRL, 3063 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3064 3065 rsu_write_1(sc, R92S_SPS1_CTRL, 3066 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 3067 rsu_ms_delay(sc, 2000); 3068 /* Enable switch regulator block. */ 3069 rsu_write_1(sc, R92S_SPS1_CTRL, 3070 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 3071 3072 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 3073 3074 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3075 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3076 3077 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3078 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3079 3080 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3081 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 3082 3083 /* Enable AFE clock. */ 3084 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3085 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3086 /* Enable AFE PLL macro block. */ 3087 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 3088 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 3089 /* Attach AFE PLL to MACTOP/BB. */ 3090 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3091 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3092 3093 /* Switch to 40MHz clock instead of 80MHz. */ 3094 rsu_write_2(sc, R92S_SYS_CLKR, 3095 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 3096 3097 /* Enable MAC clock. */ 3098 rsu_write_2(sc, R92S_SYS_CLKR, 3099 rsu_read_2(sc, R92S_SYS_CLKR) | 3100 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3101 3102 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3103 3104 /* Enable digital core and IOREG R/W. */ 3105 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3106 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3107 3108 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3109 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3110 3111 /* Switch the control path to firmware. */ 3112 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3113 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3114 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3115 3116 rsu_write_2(sc, R92S_CR, 0x37fc); 3117 3118 /* Fix USB RX FIFO issue. */ 3119 rsu_write_1(sc, 0xfe5c, 3120 rsu_read_1(sc, 0xfe5c) | 0x80); 3121 rsu_write_1(sc, 0x00ab, 3122 rsu_read_1(sc, 0x00ab) | 0xc0); 3123 3124 rsu_write_1(sc, R92S_SYS_CLKR, 3125 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3126 } 3127 3128 /* 3129 * Power on sequence for B-cut and C-cut adapters. 3130 */ 3131 static void 3132 rsu_power_on_bcut(struct rsu_softc *sc) 3133 { 3134 uint32_t reg; 3135 int ntries; 3136 3137 /* Prevent eFuse leakage. */ 3138 rsu_write_1(sc, 0x37, 0xb0); 3139 rsu_ms_delay(sc, 10); 3140 rsu_write_1(sc, 0x37, 0x30); 3141 3142 /* Switch the control path to hardware. */ 3143 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3144 if (reg & R92S_FWHW_SEL) { 3145 rsu_write_2(sc, R92S_SYS_CLKR, 3146 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 3147 } 3148 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3149 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 3150 rsu_ms_delay(sc, 1); 3151 3152 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3153 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3154 3155 reg = rsu_read_1(sc, R92S_AFE_MISC); 3156 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 3157 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 3158 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 3159 3160 /* Enable PLL. */ 3161 rsu_write_1(sc, R92S_LDOA15_CTRL, 3162 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3163 3164 rsu_write_1(sc, R92S_LDOV12D_CTRL, 3165 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 3166 3167 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3168 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3169 3170 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3171 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3172 3173 /* Support 64KB IMEM. */ 3174 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3175 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 3176 3177 /* Enable AFE clock. */ 3178 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3179 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3180 /* Enable AFE PLL macro block. */ 3181 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 3182 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3183 rsu_ms_delay(sc, 1); 3184 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 3185 rsu_ms_delay(sc, 1); 3186 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3187 rsu_ms_delay(sc, 1); 3188 3189 /* Attach AFE PLL to MACTOP/BB. */ 3190 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3191 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3192 3193 /* Switch to 40MHz clock. */ 3194 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 3195 /* Disable CPU clock and 80MHz SSC. */ 3196 rsu_write_1(sc, R92S_SYS_CLKR, 3197 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 3198 /* Enable MAC clock. */ 3199 rsu_write_2(sc, R92S_SYS_CLKR, 3200 rsu_read_2(sc, R92S_SYS_CLKR) | 3201 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3202 3203 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3204 3205 /* Enable digital core and IOREG R/W. */ 3206 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3207 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3208 3209 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3210 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3211 3212 /* Switch the control path to firmware. */ 3213 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3214 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3215 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3216 3217 rsu_write_2(sc, R92S_CR, 0x37fc); 3218 3219 /* Fix USB RX FIFO issue. */ 3220 rsu_write_1(sc, 0xfe5c, 3221 rsu_read_1(sc, 0xfe5c) | 0x80); 3222 3223 rsu_write_1(sc, R92S_SYS_CLKR, 3224 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3225 3226 rsu_write_1(sc, 0xfe1c, 0x80); 3227 3228 /* Make sure TxDMA is ready to download firmware. */ 3229 for (ntries = 0; ntries < 20; ntries++) { 3230 reg = rsu_read_1(sc, R92S_TCR); 3231 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 3232 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 3233 break; 3234 rsu_ms_delay(sc, 1); 3235 } 3236 if (ntries == 20) { 3237 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 3238 "%s: TxDMA is not ready\n", 3239 __func__); 3240 /* Reset TxDMA. */ 3241 reg = rsu_read_1(sc, R92S_CR); 3242 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 3243 rsu_ms_delay(sc, 1); 3244 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 3245 } 3246 } 3247 3248 static void 3249 rsu_power_off(struct rsu_softc *sc) 3250 { 3251 /* Turn RF off. */ 3252 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 3253 rsu_ms_delay(sc, 5); 3254 3255 /* Turn MAC off. */ 3256 /* Switch control path. */ 3257 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 3258 /* Reset MACTOP. */ 3259 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 3260 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 3261 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 3262 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 3263 3264 /* Disable AFE PLL. */ 3265 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 3266 /* Disable A15V. */ 3267 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 3268 /* Disable eFuse 1.2V. */ 3269 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 3270 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 3271 /* Enable AFE macro block's bandgap and Mbias. */ 3272 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 3273 /* Disable 1.6V LDO. */ 3274 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 3275 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 3276 3277 /* Firmware - tell it to switch things off */ 3278 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 3279 } 3280 3281 static int 3282 rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 3283 { 3284 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 3285 struct rsu_data *data; 3286 struct r92s_tx_desc *txd; 3287 int mlen; 3288 3289 while (len > 0) { 3290 data = rsu_getbuf(sc); 3291 if (data == NULL) 3292 return (ENOMEM); 3293 txd = (struct r92s_tx_desc *)data->buf; 3294 memset(txd, 0, sizeof(*txd)); 3295 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 3296 /* Last chunk. */ 3297 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 3298 mlen = len; 3299 } else 3300 mlen = RSU_TXBUFSZ - sizeof(*txd); 3301 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 3302 memcpy(&txd[1], buf, mlen); 3303 data->buflen = sizeof(*txd) + mlen; 3304 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 3305 "%s: starting transfer %p\n", 3306 __func__, data); 3307 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 3308 buf += mlen; 3309 len -= mlen; 3310 } 3311 usbd_transfer_start(sc->sc_xfer[which]); 3312 return (0); 3313 } 3314 3315 CTASSERT(sizeof(size_t) >= sizeof(uint32_t)); 3316 3317 static int 3318 rsu_load_firmware(struct rsu_softc *sc) 3319 { 3320 const struct r92s_fw_hdr *hdr; 3321 struct r92s_fw_priv *dmem; 3322 struct ieee80211com *ic = &sc->sc_ic; 3323 const uint8_t *imem, *emem; 3324 uint32_t imemsz, ememsz; 3325 const struct firmware *fw; 3326 size_t size; 3327 uint32_t reg; 3328 int ntries, error; 3329 3330 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 3331 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 3332 "%s: Firmware already loaded\n", 3333 __func__); 3334 return (0); 3335 } 3336 3337 RSU_UNLOCK(sc); 3338 /* Read firmware image from the filesystem. */ 3339 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 3340 device_printf(sc->sc_dev, 3341 "%s: failed load firmware of file rsu-rtl8712fw\n", 3342 __func__); 3343 RSU_LOCK(sc); 3344 return (ENXIO); 3345 } 3346 RSU_LOCK(sc); 3347 size = fw->datasize; 3348 if (size < sizeof(*hdr)) { 3349 device_printf(sc->sc_dev, "firmware too short\n"); 3350 error = EINVAL; 3351 goto fail; 3352 } 3353 hdr = (const struct r92s_fw_hdr *)fw->data; 3354 if (hdr->signature != htole16(0x8712) && 3355 hdr->signature != htole16(0x8192)) { 3356 device_printf(sc->sc_dev, 3357 "invalid firmware signature 0x%x\n", 3358 le16toh(hdr->signature)); 3359 error = EINVAL; 3360 goto fail; 3361 } 3362 RSU_DPRINTF(sc, RSU_DEBUG_FW, "FW V%d %02x-%02x %02x:%02x\n", 3363 le16toh(hdr->version), hdr->month, hdr->day, hdr->hour, 3364 hdr->minute); 3365 3366 /* Make sure that driver and firmware are in sync. */ 3367 if (hdr->privsz != htole32(sizeof(*dmem))) { 3368 device_printf(sc->sc_dev, "unsupported firmware image\n"); 3369 error = EINVAL; 3370 goto fail; 3371 } 3372 /* Get FW sections sizes. */ 3373 imemsz = le32toh(hdr->imemsz); 3374 ememsz = le32toh(hdr->sramsz); 3375 /* Check that all FW sections fit in image. */ 3376 if (imemsz > (size_t)(size - sizeof(*hdr)) || 3377 ememsz > (size_t)(size - sizeof(*hdr) - imemsz)) { 3378 device_printf(sc->sc_dev, "firmware too short\n"); 3379 error = EINVAL; 3380 goto fail; 3381 } 3382 imem = (const uint8_t *)&hdr[1]; 3383 emem = imem + imemsz; 3384 3385 /* Load IMEM section. */ 3386 error = rsu_fw_loadsection(sc, imem, imemsz); 3387 if (error != 0) { 3388 device_printf(sc->sc_dev, 3389 "could not load firmware section %s\n", "IMEM"); 3390 goto fail; 3391 } 3392 /* Wait for load to complete. */ 3393 for (ntries = 0; ntries != 50; ntries++) { 3394 rsu_ms_delay(sc, 10); 3395 reg = rsu_read_1(sc, R92S_TCR); 3396 if (reg & R92S_TCR_IMEM_CODE_DONE) 3397 break; 3398 } 3399 if (ntries == 50) { 3400 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 3401 error = ETIMEDOUT; 3402 goto fail; 3403 } 3404 /* Load EMEM section. */ 3405 error = rsu_fw_loadsection(sc, emem, ememsz); 3406 if (error != 0) { 3407 device_printf(sc->sc_dev, 3408 "could not load firmware section %s\n", "EMEM"); 3409 goto fail; 3410 } 3411 /* Wait for load to complete. */ 3412 for (ntries = 0; ntries != 50; ntries++) { 3413 rsu_ms_delay(sc, 10); 3414 reg = rsu_read_2(sc, R92S_TCR); 3415 if (reg & R92S_TCR_EMEM_CODE_DONE) 3416 break; 3417 } 3418 if (ntries == 50) { 3419 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 3420 error = ETIMEDOUT; 3421 goto fail; 3422 } 3423 /* Enable CPU. */ 3424 rsu_write_1(sc, R92S_SYS_CLKR, 3425 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 3426 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 3427 device_printf(sc->sc_dev, "could not enable system clock\n"); 3428 error = EIO; 3429 goto fail; 3430 } 3431 rsu_write_2(sc, R92S_SYS_FUNC_EN, 3432 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 3433 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 3434 device_printf(sc->sc_dev, 3435 "could not enable microcontroller\n"); 3436 error = EIO; 3437 goto fail; 3438 } 3439 /* Wait for CPU to initialize. */ 3440 for (ntries = 0; ntries < 100; ntries++) { 3441 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 3442 break; 3443 rsu_ms_delay(sc, 1); 3444 } 3445 if (ntries == 100) { 3446 device_printf(sc->sc_dev, 3447 "timeout waiting for microcontroller\n"); 3448 error = ETIMEDOUT; 3449 goto fail; 3450 } 3451 3452 /* Update DMEM section before loading. */ 3453 dmem = __DECONST(struct r92s_fw_priv *, &hdr->priv); 3454 memset(dmem, 0, sizeof(*dmem)); 3455 dmem->hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 3456 dmem->nendpoints = sc->sc_nendpoints; 3457 dmem->chip_version = sc->cut; 3458 dmem->rf_config = sc->sc_rftype; 3459 dmem->vcs_type = R92S_VCS_TYPE_AUTO; 3460 dmem->vcs_mode = R92S_VCS_MODE_RTS_CTS; 3461 dmem->turbo_mode = 0; 3462 dmem->bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 3463 dmem->amsdu2ampdu_en = !! (sc->sc_ht); 3464 dmem->ampdu_en = !! (sc->sc_ht); 3465 dmem->agg_offload = !! (sc->sc_ht); 3466 dmem->qos_en = 1; 3467 dmem->ps_offload = 1; 3468 dmem->lowpower_mode = 1; /* XXX TODO: configurable? */ 3469 /* Load DMEM section. */ 3470 error = rsu_fw_loadsection(sc, (uint8_t *)dmem, sizeof(*dmem)); 3471 if (error != 0) { 3472 device_printf(sc->sc_dev, 3473 "could not load firmware section %s\n", "DMEM"); 3474 goto fail; 3475 } 3476 /* Wait for load to complete. */ 3477 for (ntries = 0; ntries < 100; ntries++) { 3478 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 3479 break; 3480 rsu_ms_delay(sc, 1); 3481 } 3482 if (ntries == 100) { 3483 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 3484 "DMEM"); 3485 error = ETIMEDOUT; 3486 goto fail; 3487 } 3488 /* Wait for firmware readiness. */ 3489 for (ntries = 0; ntries < 60; ntries++) { 3490 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 3491 break; 3492 rsu_ms_delay(sc, 1); 3493 } 3494 if (ntries == 60) { 3495 device_printf(sc->sc_dev, 3496 "timeout waiting for firmware readiness\n"); 3497 error = ETIMEDOUT; 3498 goto fail; 3499 } 3500 fail: 3501 firmware_put(fw, FIRMWARE_UNLOAD); 3502 return (error); 3503 } 3504 3505 3506 static int 3507 rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3508 const struct ieee80211_bpf_params *params) 3509 { 3510 struct ieee80211com *ic = ni->ni_ic; 3511 struct rsu_softc *sc = ic->ic_softc; 3512 struct rsu_data *bf; 3513 3514 /* prevent management frames from being sent if we're not ready */ 3515 if (!sc->sc_running) { 3516 m_freem(m); 3517 return (ENETDOWN); 3518 } 3519 RSU_LOCK(sc); 3520 bf = rsu_getbuf(sc); 3521 if (bf == NULL) { 3522 m_freem(m); 3523 RSU_UNLOCK(sc); 3524 return (ENOBUFS); 3525 } 3526 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3527 m_freem(m); 3528 rsu_freebuf(sc, bf); 3529 RSU_UNLOCK(sc); 3530 return (EIO); 3531 } 3532 RSU_UNLOCK(sc); 3533 3534 return (0); 3535 } 3536 3537 static void 3538 rsu_rxfilter_init(struct rsu_softc *sc) 3539 { 3540 uint32_t reg; 3541 3542 RSU_ASSERT_LOCKED(sc); 3543 3544 /* Setup multicast filter. */ 3545 rsu_set_multi(sc); 3546 3547 /* Adjust Rx filter. */ 3548 reg = rsu_read_4(sc, R92S_RCR); 3549 reg &= ~R92S_RCR_AICV; 3550 reg |= R92S_RCR_APP_PHYSTS; 3551 if (sc->sc_rx_checksum_enable) 3552 reg |= R92S_RCR_TCP_OFFLD_EN; 3553 rsu_write_4(sc, R92S_RCR, reg); 3554 3555 /* Update dynamic Rx filter parts. */ 3556 rsu_rxfilter_refresh(sc); 3557 } 3558 3559 static void 3560 rsu_rxfilter_set(struct rsu_softc *sc, uint32_t clear, uint32_t set) 3561 { 3562 /* NB: firmware can touch this register too. */ 3563 rsu_write_4(sc, R92S_RCR, 3564 (rsu_read_4(sc, R92S_RCR) & ~clear) | set); 3565 } 3566 3567 static void 3568 rsu_rxfilter_refresh(struct rsu_softc *sc) 3569 { 3570 struct ieee80211com *ic = &sc->sc_ic; 3571 uint32_t mask_all, mask_min; 3572 3573 RSU_ASSERT_LOCKED(sc); 3574 3575 /* NB: RCR_AMF / RXFLTMAP_MGT are used by firmware. */ 3576 mask_all = R92S_RCR_ACF | R92S_RCR_AAP; 3577 mask_min = R92S_RCR_APM; 3578 if (sc->sc_vap_is_running) 3579 mask_min |= R92S_RCR_CBSSID; 3580 else 3581 mask_all |= R92S_RCR_ADF; 3582 3583 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3584 uint16_t rxfltmap; 3585 if (sc->sc_vap_is_running) 3586 rxfltmap = 0; 3587 else 3588 rxfltmap = R92S_RXFLTMAP_MGT_DEF; 3589 rsu_write_2(sc, R92S_RXFLTMAP_MGT, rxfltmap); 3590 } 3591 3592 if (ic->ic_promisc == 0 && ic->ic_opmode != IEEE80211_M_MONITOR) 3593 rsu_rxfilter_set(sc, mask_all, mask_min); 3594 else 3595 rsu_rxfilter_set(sc, mask_min, mask_all); 3596 } 3597 3598 static int 3599 rsu_init(struct rsu_softc *sc) 3600 { 3601 struct ieee80211com *ic = &sc->sc_ic; 3602 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3603 uint8_t macaddr[IEEE80211_ADDR_LEN]; 3604 int error; 3605 int i; 3606 3607 RSU_LOCK(sc); 3608 3609 if (sc->sc_running) { 3610 RSU_UNLOCK(sc); 3611 return (0); 3612 } 3613 3614 /* Ensure the mbuf queue is drained */ 3615 rsu_drain_mbufq(sc); 3616 3617 /* Reset power management state. */ 3618 rsu_write_1(sc, R92S_USB_HRPWM, 0); 3619 3620 /* Power on adapter. */ 3621 if (sc->cut == 1) 3622 rsu_power_on_acut(sc); 3623 else 3624 rsu_power_on_bcut(sc); 3625 3626 /* Load firmware. */ 3627 error = rsu_load_firmware(sc); 3628 if (error != 0) 3629 goto fail; 3630 3631 rsu_write_4(sc, R92S_CR, 3632 rsu_read_4(sc, R92S_CR) & ~0xff000000); 3633 3634 /* Use 128 bytes pages. */ 3635 rsu_write_1(sc, 0x00b5, 3636 rsu_read_1(sc, 0x00b5) | 0x01); 3637 /* Enable USB Rx aggregation. */ 3638 rsu_write_1(sc, 0x00bd, 3639 rsu_read_1(sc, 0x00bd) | 0x80); 3640 /* Set USB Rx aggregation threshold. */ 3641 rsu_write_1(sc, 0x00d9, 0x01); 3642 /* Set USB Rx aggregation timeout (1.7ms/4). */ 3643 rsu_write_1(sc, 0xfe5b, 0x04); 3644 /* Fix USB Rx FIFO issue. */ 3645 rsu_write_1(sc, 0xfe5c, 3646 rsu_read_1(sc, 0xfe5c) | 0x80); 3647 3648 /* Set MAC address. */ 3649 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 3650 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 3651 3652 /* It really takes 1.5 seconds for the firmware to boot: */ 3653 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(2000)); 3654 3655 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 3656 __func__, 3657 ether_sprintf(macaddr)); 3658 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 3659 IEEE80211_ADDR_LEN); 3660 if (error != 0) { 3661 device_printf(sc->sc_dev, "could not set MAC address\n"); 3662 goto fail; 3663 } 3664 3665 /* Initialize Rx filter. */ 3666 rsu_rxfilter_init(sc); 3667 3668 /* Set PS mode fully active */ 3669 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 3670 if (error != 0) { 3671 device_printf(sc->sc_dev, "could not set PS mode\n"); 3672 goto fail; 3673 } 3674 3675 /* Install static keys (if any). */ 3676 error = rsu_reinit_static_keys(sc); 3677 if (error != 0) 3678 goto fail; 3679 3680 sc->sc_extra_scan = 0; 3681 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 3682 3683 /* We're ready to go. */ 3684 sc->sc_running = 1; 3685 RSU_UNLOCK(sc); 3686 3687 return (0); 3688 fail: 3689 /* Need to stop all failed transfers, if any */ 3690 for (i = 0; i != RSU_N_TRANSFER; i++) 3691 usbd_transfer_stop(sc->sc_xfer[i]); 3692 RSU_UNLOCK(sc); 3693 3694 return (error); 3695 } 3696 3697 static void 3698 rsu_stop(struct rsu_softc *sc) 3699 { 3700 int i; 3701 3702 RSU_LOCK(sc); 3703 if (!sc->sc_running) { 3704 RSU_UNLOCK(sc); 3705 return; 3706 } 3707 3708 sc->sc_running = 0; 3709 sc->sc_vap_is_running = 0; 3710 sc->sc_calibrating = 0; 3711 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 3712 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 3713 3714 /* Power off adapter. */ 3715 rsu_power_off(sc); 3716 3717 /* 3718 * CAM is not accessible after shutdown; 3719 * all entries are marked (by firmware?) as invalid. 3720 */ 3721 memset(sc->free_keys_bmap, 0, sizeof(sc->free_keys_bmap)); 3722 memset(sc->keys_bmap, 0, sizeof(sc->keys_bmap)); 3723 3724 for (i = 0; i < RSU_N_TRANSFER; i++) 3725 usbd_transfer_stop(sc->sc_xfer[i]); 3726 3727 /* Ensure the mbuf queue is drained */ 3728 rsu_drain_mbufq(sc); 3729 RSU_UNLOCK(sc); 3730 } 3731 3732 /* 3733 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 3734 * which breaks any kind of driver serialisation. 3735 */ 3736 static void 3737 rsu_ms_delay(struct rsu_softc *sc, int ms) 3738 { 3739 3740 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 3741 DELAY(ms * 1000); 3742 } 3743