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 /* 20 * Driver for Realtek RTL8188SU/RTL8191SU/RTL8192SU. 21 * 22 * TODO: 23 * o tx a-mpdu 24 * o hostap / ibss / mesh 25 * o power-save operation 26 */ 27 28 #include "opt_wlan.h" 29 30 #include <sys/param.h> 31 #include <sys/endian.h> 32 #include <sys/sockio.h> 33 #include <sys/malloc.h> 34 #include <sys/mbuf.h> 35 #include <sys/kernel.h> 36 #include <sys/socket.h> 37 #include <sys/systm.h> 38 #include <sys/conf.h> 39 #include <sys/bus.h> 40 #include <sys/firmware.h> 41 #include <sys/module.h> 42 43 #include <net/bpf.h> 44 #include <net/if.h> 45 #include <net/if_var.h> 46 #include <net/if_arp.h> 47 #include <net/if_dl.h> 48 #include <net/if_media.h> 49 #include <net/if_types.h> 50 51 #include <netinet/in.h> 52 #include <netinet/in_systm.h> 53 #include <netinet/in_var.h> 54 #include <netinet/if_ether.h> 55 #include <netinet/ip.h> 56 57 #include <net80211/ieee80211_var.h> 58 #include <net80211/ieee80211_regdomain.h> 59 #include <net80211/ieee80211_radiotap.h> 60 61 #include <dev/usb/usb.h> 62 #include <dev/usb/usbdi.h> 63 #include "usbdevs.h" 64 65 #include <dev/rtwn/if_rtwn_ridx.h> /* XXX */ 66 #include <dev/usb/wlan/if_rsureg.h> 67 68 #define RSU_RATE_IS_CCK RTWN_RATE_IS_CCK 69 70 #ifdef USB_DEBUG 71 static int rsu_debug = 0; 72 SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 73 "USB rsu"); 74 SYSCTL_INT(_hw_usb_rsu, OID_AUTO, debug, CTLFLAG_RWTUN, &rsu_debug, 0, 75 "Debug level"); 76 #define RSU_DPRINTF(_sc, _flg, ...) \ 77 do \ 78 if (((_flg) == (RSU_DEBUG_ANY)) || (rsu_debug & (_flg))) \ 79 device_printf((_sc)->sc_dev, __VA_ARGS__); \ 80 while (0) 81 #else 82 #define RSU_DPRINTF(_sc, _flg, ...) 83 #endif 84 85 static int rsu_enable_11n = 1; 86 TUNABLE_INT("hw.usb.rsu.enable_11n", &rsu_enable_11n); 87 88 #define RSU_DEBUG_ANY 0xffffffff 89 #define RSU_DEBUG_TX 0x00000001 90 #define RSU_DEBUG_RX 0x00000002 91 #define RSU_DEBUG_RESET 0x00000004 92 #define RSU_DEBUG_CALIB 0x00000008 93 #define RSU_DEBUG_STATE 0x00000010 94 #define RSU_DEBUG_SCAN 0x00000020 95 #define RSU_DEBUG_FWCMD 0x00000040 96 #define RSU_DEBUG_TXDONE 0x00000080 97 #define RSU_DEBUG_FW 0x00000100 98 #define RSU_DEBUG_FWDBG 0x00000200 99 #define RSU_DEBUG_AMPDU 0x00000400 100 #define RSU_DEBUG_KEY 0x00000800 101 #define RSU_DEBUG_USB 0x00001000 102 103 static const STRUCT_USB_HOST_ID rsu_devs[] = { 104 #define RSU_HT_NOT_SUPPORTED 0 105 #define RSU_HT_SUPPORTED 1 106 #define RSU_DEV_HT(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 107 RSU_HT_SUPPORTED) } 108 #define RSU_DEV(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 109 RSU_HT_NOT_SUPPORTED) } 110 RSU_DEV(ASUS, RTL8192SU), 111 RSU_DEV(AZUREWAVE, RTL8192SU_4), 112 RSU_DEV(SITECOMEU, WLA1000), 113 RSU_DEV_HT(ACCTON, RTL8192SU), 114 RSU_DEV_HT(ASUS, USBN10), 115 RSU_DEV_HT(AZUREWAVE, RTL8192SU_1), 116 RSU_DEV_HT(AZUREWAVE, RTL8192SU_2), 117 RSU_DEV_HT(AZUREWAVE, RTL8192SU_3), 118 RSU_DEV_HT(AZUREWAVE, RTL8192SU_5), 119 RSU_DEV_HT(BELKIN, RTL8192SU_1), 120 RSU_DEV_HT(BELKIN, RTL8192SU_2), 121 RSU_DEV_HT(BELKIN, RTL8192SU_3), 122 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_1), 123 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_2), 124 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_3), 125 RSU_DEV_HT(COREGA, RTL8192SU), 126 RSU_DEV_HT(DLINK2, DWA131A1), 127 RSU_DEV_HT(DLINK2, RTL8192SU_1), 128 RSU_DEV_HT(DLINK2, RTL8192SU_2), 129 RSU_DEV_HT(EDIMAX, RTL8192SU_1), 130 RSU_DEV_HT(EDIMAX, RTL8192SU_2), 131 RSU_DEV_HT(EDIMAX, EW7622UMN), 132 RSU_DEV_HT(GUILLEMOT, HWGUN54), 133 RSU_DEV_HT(GUILLEMOT, HWNUM300), 134 RSU_DEV_HT(HAWKING, RTL8192SU_1), 135 RSU_DEV_HT(HAWKING, RTL8192SU_2), 136 RSU_DEV_HT(PLANEX2, GWUSNANO), 137 RSU_DEV_HT(REALTEK, RTL8171), 138 RSU_DEV_HT(REALTEK, RTL8172), 139 RSU_DEV_HT(REALTEK, RTL8173), 140 RSU_DEV_HT(REALTEK, RTL8174), 141 RSU_DEV_HT(REALTEK, RTL8192SU), 142 RSU_DEV_HT(REALTEK, RTL8712), 143 RSU_DEV_HT(REALTEK, RTL8713), 144 RSU_DEV_HT(SENAO, RTL8192SU_1), 145 RSU_DEV_HT(SENAO, RTL8192SU_2), 146 RSU_DEV_HT(SITECOMEU, WL349V1), 147 RSU_DEV_HT(SITECOMEU, WL353), 148 RSU_DEV_HT(SWEEX2, LW154), 149 RSU_DEV_HT(TRENDNET, TEW646UBH), 150 #undef RSU_DEV_HT 151 #undef RSU_DEV 152 }; 153 154 static device_probe_t rsu_match; 155 static device_attach_t rsu_attach; 156 static device_detach_t rsu_detach; 157 static usb_callback_t rsu_bulk_tx_callback_be_bk; 158 static usb_callback_t rsu_bulk_tx_callback_vi_vo; 159 static usb_callback_t rsu_bulk_tx_callback_h2c; 160 static usb_callback_t rsu_bulk_rx_callback; 161 static usb_error_t rsu_do_request(struct rsu_softc *, 162 struct usb_device_request *, void *); 163 static struct ieee80211vap * 164 rsu_vap_create(struct ieee80211com *, const char name[IFNAMSIZ], 165 int, enum ieee80211_opmode, int, 166 const uint8_t bssid[IEEE80211_ADDR_LEN], 167 const uint8_t mac[IEEE80211_ADDR_LEN]); 168 static void rsu_vap_delete(struct ieee80211vap *); 169 static void rsu_scan_start(struct ieee80211com *); 170 static void rsu_scan_end(struct ieee80211com *); 171 static void rsu_getradiocaps(struct ieee80211com *, int, int *, 172 struct ieee80211_channel[]); 173 static void rsu_set_channel(struct ieee80211com *); 174 static void rsu_scan_curchan(struct ieee80211_scan_state *, unsigned long); 175 static void rsu_scan_mindwell(struct ieee80211_scan_state *); 176 static void rsu_update_promisc(struct ieee80211com *); 177 static uint8_t rsu_get_multi_pos(const uint8_t[]); 178 static void rsu_set_multi(struct rsu_softc *); 179 static void rsu_update_mcast(struct ieee80211com *); 180 static int rsu_alloc_rx_list(struct rsu_softc *); 181 static void rsu_free_rx_list(struct rsu_softc *); 182 static int rsu_alloc_tx_list(struct rsu_softc *); 183 static void rsu_free_tx_list(struct rsu_softc *); 184 static void rsu_free_list(struct rsu_softc *, struct rsu_data [], int); 185 static struct rsu_data *_rsu_getbuf(struct rsu_softc *); 186 static struct rsu_data *rsu_getbuf(struct rsu_softc *); 187 static void rsu_freebuf(struct rsu_softc *, struct rsu_data *); 188 static int rsu_write_region_1(struct rsu_softc *, uint16_t, uint8_t *, 189 int); 190 static void rsu_write_1(struct rsu_softc *, uint16_t, uint8_t); 191 static void rsu_write_2(struct rsu_softc *, uint16_t, uint16_t); 192 static void rsu_write_4(struct rsu_softc *, uint16_t, uint32_t); 193 static int rsu_read_region_1(struct rsu_softc *, uint16_t, uint8_t *, 194 int); 195 static uint8_t rsu_read_1(struct rsu_softc *, uint16_t); 196 static uint16_t rsu_read_2(struct rsu_softc *, uint16_t); 197 static uint32_t rsu_read_4(struct rsu_softc *, uint16_t); 198 static int rsu_fw_iocmd(struct rsu_softc *, uint32_t); 199 static uint8_t rsu_efuse_read_1(struct rsu_softc *, uint16_t); 200 static int rsu_read_rom(struct rsu_softc *); 201 static int rsu_fw_cmd(struct rsu_softc *, uint8_t, void *, int); 202 static void rsu_calib_task(void *, int); 203 static void rsu_tx_task(void *, int); 204 static void rsu_set_led(struct rsu_softc *, int); 205 static int rsu_monitor_newstate(struct ieee80211vap *, 206 enum ieee80211_state, int); 207 static int rsu_newstate(struct ieee80211vap *, enum ieee80211_state, int); 208 static int rsu_key_alloc(struct ieee80211vap *, struct ieee80211_key *, 209 ieee80211_keyix *, ieee80211_keyix *); 210 static int rsu_process_key(struct ieee80211vap *, 211 const struct ieee80211_key *, int); 212 static int rsu_key_set(struct ieee80211vap *, 213 const struct ieee80211_key *); 214 static int rsu_key_delete(struct ieee80211vap *, 215 const struct ieee80211_key *); 216 static int rsu_cam_read(struct rsu_softc *, uint8_t, uint32_t *); 217 static void rsu_cam_write(struct rsu_softc *, uint8_t, uint32_t); 218 static int rsu_key_check(struct rsu_softc *, ieee80211_keyix, int); 219 static uint8_t rsu_crypto_mode(struct rsu_softc *, u_int, int); 220 static int rsu_set_key_group(struct rsu_softc *, 221 const struct ieee80211_key *); 222 static int rsu_set_key_pair(struct rsu_softc *, 223 const struct ieee80211_key *); 224 static int rsu_reinit_static_keys(struct rsu_softc *); 225 static int rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix); 226 static void rsu_delete_key_pair_cb(void *, int); 227 static int rsu_site_survey(struct rsu_softc *, 228 struct ieee80211_scan_ssid *); 229 static int rsu_join_bss(struct rsu_softc *, struct ieee80211_node *); 230 static int rsu_disconnect(struct rsu_softc *); 231 static int rsu_hwrssi_to_rssi(struct rsu_softc *, int hw_rssi); 232 static void rsu_event_survey(struct rsu_softc *, uint8_t *, int); 233 static void rsu_event_join_bss(struct rsu_softc *, uint8_t *, int); 234 static void rsu_rx_event(struct rsu_softc *, uint8_t, uint8_t *, int); 235 static void rsu_rx_multi_event(struct rsu_softc *, uint8_t *, int); 236 static int8_t rsu_get_rssi(struct rsu_softc *, int, void *); 237 static struct mbuf * rsu_rx_copy_to_mbuf(struct rsu_softc *, 238 struct r92s_rx_stat *, int); 239 static uint32_t rsu_get_tsf_low(struct rsu_softc *); 240 static uint32_t rsu_get_tsf_high(struct rsu_softc *); 241 static struct ieee80211_node * rsu_rx_frame(struct rsu_softc *, struct mbuf *); 242 static struct mbuf * rsu_rx_multi_frame(struct rsu_softc *, uint8_t *, int); 243 static struct mbuf * 244 rsu_rxeof(struct usb_xfer *, struct rsu_data *); 245 static void rsu_txeof(struct usb_xfer *, struct rsu_data *); 246 static int rsu_raw_xmit(struct ieee80211_node *, struct mbuf *, 247 const struct ieee80211_bpf_params *); 248 static void rsu_rxfilter_init(struct rsu_softc *); 249 static void rsu_rxfilter_set(struct rsu_softc *, uint32_t, uint32_t); 250 static void rsu_rxfilter_refresh(struct rsu_softc *); 251 static int rsu_init(struct rsu_softc *); 252 static int rsu_tx_start(struct rsu_softc *, struct ieee80211_node *, 253 struct mbuf *, struct rsu_data *); 254 static int rsu_transmit(struct ieee80211com *, struct mbuf *); 255 static void rsu_start(struct rsu_softc *); 256 static void _rsu_start(struct rsu_softc *); 257 static int rsu_ioctl_net(struct ieee80211com *, u_long, void *); 258 static void rsu_parent(struct ieee80211com *); 259 static void rsu_stop(struct rsu_softc *); 260 static void rsu_ms_delay(struct rsu_softc *, int); 261 262 static device_method_t rsu_methods[] = { 263 DEVMETHOD(device_probe, rsu_match), 264 DEVMETHOD(device_attach, rsu_attach), 265 DEVMETHOD(device_detach, rsu_detach), 266 267 DEVMETHOD_END 268 }; 269 270 static driver_t rsu_driver = { 271 .name = "rsu", 272 .methods = rsu_methods, 273 .size = sizeof(struct rsu_softc) 274 }; 275 276 DRIVER_MODULE(rsu, uhub, rsu_driver, NULL, NULL); 277 MODULE_DEPEND(rsu, wlan, 1, 1, 1); 278 MODULE_DEPEND(rsu, usb, 1, 1, 1); 279 MODULE_DEPEND(rsu, firmware, 1, 1, 1); 280 MODULE_VERSION(rsu, 1); 281 USB_PNP_HOST_INFO(rsu_devs); 282 283 static uint8_t rsu_wme_ac_xfer_map[4] = { 284 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 285 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 286 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 287 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 288 }; 289 290 /* XXX hard-coded */ 291 #define RSU_H2C_ENDPOINT 3 292 293 static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 294 [RSU_BULK_RX] = { 295 .type = UE_BULK, 296 .endpoint = UE_ADDR_ANY, 297 .direction = UE_DIR_IN, 298 .bufsize = RSU_RXBUFSZ, 299 .flags = { 300 .pipe_bof = 1, 301 .short_xfer_ok = 1 302 }, 303 .callback = rsu_bulk_rx_callback 304 }, 305 [RSU_BULK_TX_BE_BK] = { 306 .type = UE_BULK, 307 .endpoint = 0x06, 308 .direction = UE_DIR_OUT, 309 .bufsize = RSU_TXBUFSZ, 310 .flags = { 311 .ext_buffer = 1, 312 .pipe_bof = 1, 313 .force_short_xfer = 1 314 }, 315 .callback = rsu_bulk_tx_callback_be_bk, 316 .timeout = RSU_TX_TIMEOUT 317 }, 318 [RSU_BULK_TX_VI_VO] = { 319 .type = UE_BULK, 320 .endpoint = 0x04, 321 .direction = UE_DIR_OUT, 322 .bufsize = RSU_TXBUFSZ, 323 .flags = { 324 .ext_buffer = 1, 325 .pipe_bof = 1, 326 .force_short_xfer = 1 327 }, 328 .callback = rsu_bulk_tx_callback_vi_vo, 329 .timeout = RSU_TX_TIMEOUT 330 }, 331 [RSU_BULK_TX_H2C] = { 332 .type = UE_BULK, 333 .endpoint = 0x0d, 334 .direction = UE_DIR_OUT, 335 .bufsize = RSU_TXBUFSZ, 336 .flags = { 337 .ext_buffer = 1, 338 .pipe_bof = 1, 339 .short_xfer_ok = 1 340 }, 341 .callback = rsu_bulk_tx_callback_h2c, 342 .timeout = RSU_TX_TIMEOUT 343 }, 344 }; 345 346 static int 347 rsu_match(device_t self) 348 { 349 struct usb_attach_arg *uaa = device_get_ivars(self); 350 351 if (uaa->usb_mode != USB_MODE_HOST || 352 uaa->info.bIfaceIndex != 0 || 353 uaa->info.bConfigIndex != 0) 354 return (ENXIO); 355 356 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 357 } 358 359 static int 360 rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 361 { 362 363 return (ENOTSUP); 364 } 365 366 static void 367 rsu_update_chw(struct ieee80211com *ic) 368 { 369 370 } 371 372 /* 373 * notification from net80211 that it'd like to do A-MPDU on the given TID. 374 * 375 * Note: this actually hangs traffic at the present moment, so don't use it. 376 * The firmware debug does indiciate it's sending and establishing a TX AMPDU 377 * session, but then no traffic flows. 378 */ 379 static int 380 rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 381 { 382 #if 0 383 struct rsu_softc *sc = ni->ni_ic->ic_softc; 384 struct r92s_add_ba_req req; 385 386 /* Don't enable if it's requested or running */ 387 if (IEEE80211_AMPDU_REQUESTED(tap)) 388 return (0); 389 if (IEEE80211_AMPDU_RUNNING(tap)) 390 return (0); 391 392 /* We've decided to send addba; so send it */ 393 req.tid = htole32(tap->txa_tid); 394 395 /* Attempt net80211 state */ 396 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 397 return (0); 398 399 /* Send the firmware command */ 400 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: establishing AMPDU TX for TID %d\n", 401 __func__, 402 tap->txa_tid); 403 404 RSU_LOCK(sc); 405 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 1) { 406 RSU_UNLOCK(sc); 407 /* Mark failure */ 408 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 409 return (0); 410 } 411 RSU_UNLOCK(sc); 412 413 /* Mark success; we don't get any further notifications */ 414 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 415 #endif 416 /* Return 0, we're driving this ourselves */ 417 return (0); 418 } 419 420 static int 421 rsu_wme_update(struct ieee80211com *ic) 422 { 423 424 /* Firmware handles this; not our problem */ 425 return (0); 426 } 427 428 static int 429 rsu_attach(device_t self) 430 { 431 struct usb_attach_arg *uaa = device_get_ivars(self); 432 struct rsu_softc *sc = device_get_softc(self); 433 struct ieee80211com *ic = &sc->sc_ic; 434 int error; 435 uint8_t iface_index; 436 struct usb_interface *iface; 437 const char *rft; 438 439 device_set_usb_desc(self); 440 sc->sc_udev = uaa->device; 441 sc->sc_dev = self; 442 sc->sc_rx_checksum_enable = 1; 443 if (rsu_enable_11n) 444 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 445 446 /* Get number of endpoints */ 447 iface = usbd_get_iface(sc->sc_udev, 0); 448 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 449 450 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 451 if (sc->sc_nendpoints != 4) { 452 device_printf(sc->sc_dev, 453 "the driver currently only supports 4-endpoint devices\n"); 454 return (ENXIO); 455 } 456 457 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 458 MTX_DEF); 459 RSU_DELKEY_BMAP_LOCK_INIT(sc); 460 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 461 rsu_calib_task, sc); 462 TASK_INIT(&sc->del_key_task, 0, rsu_delete_key_pair_cb, sc); 463 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 464 mbufq_init(&sc->sc_snd, ifqmaxlen); 465 466 /* Allocate Tx/Rx buffers. */ 467 error = rsu_alloc_rx_list(sc); 468 if (error != 0) { 469 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 470 goto fail_usb; 471 } 472 473 error = rsu_alloc_tx_list(sc); 474 if (error != 0) { 475 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 476 rsu_free_rx_list(sc); 477 goto fail_usb; 478 } 479 480 iface_index = 0; 481 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 482 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 483 if (error) { 484 device_printf(sc->sc_dev, 485 "could not allocate USB transfers, err=%s\n", 486 usbd_errstr(error)); 487 goto fail_usb; 488 } 489 RSU_LOCK(sc); 490 /* Read chip revision. */ 491 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 492 if (sc->cut != 3) 493 sc->cut = (sc->cut >> 1) + 1; 494 error = rsu_read_rom(sc); 495 RSU_UNLOCK(sc); 496 if (error != 0) { 497 device_printf(self, "could not read ROM\n"); 498 goto fail_rom; 499 } 500 501 /* Figure out TX/RX streams */ 502 switch (sc->rom[84]) { 503 case 0x0: 504 sc->sc_rftype = RTL8712_RFCONFIG_1T1R; 505 sc->sc_nrxstream = 1; 506 sc->sc_ntxstream = 1; 507 rft = "1T1R"; 508 break; 509 case 0x1: 510 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 511 sc->sc_nrxstream = 2; 512 sc->sc_ntxstream = 1; 513 rft = "1T2R"; 514 break; 515 case 0x2: 516 sc->sc_rftype = RTL8712_RFCONFIG_2T2R; 517 sc->sc_nrxstream = 2; 518 sc->sc_ntxstream = 2; 519 rft = "2T2R"; 520 break; 521 case 0x3: /* "green" NIC */ 522 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 523 sc->sc_nrxstream = 2; 524 sc->sc_ntxstream = 1; 525 rft = "1T2R ('green')"; 526 break; 527 default: 528 device_printf(sc->sc_dev, 529 "%s: unknown board type (rfconfig=0x%02x)\n", 530 __func__, 531 sc->rom[84]); 532 goto fail_rom; 533 } 534 535 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 536 device_printf(self, "MAC/BB RTL8712 cut %d %s\n", sc->cut, rft); 537 538 ic->ic_softc = sc; 539 ic->ic_name = device_get_nameunit(self); 540 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 541 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 542 543 /* Set device capabilities. */ 544 ic->ic_caps = 545 IEEE80211_C_STA | /* station mode */ 546 IEEE80211_C_MONITOR | /* monitor mode supported */ 547 #if 0 548 IEEE80211_C_BGSCAN | /* Background scan. */ 549 #endif 550 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 551 IEEE80211_C_WME | /* WME/QoS */ 552 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 553 IEEE80211_C_WPA; /* WPA/RSN. */ 554 555 ic->ic_cryptocaps = 556 IEEE80211_CRYPTO_WEP | 557 IEEE80211_CRYPTO_TKIP | 558 IEEE80211_CRYPTO_AES_CCM; 559 560 /* Check if HT support is present. */ 561 if (sc->sc_ht) { 562 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 563 564 /* Enable basic HT */ 565 ic->ic_htcaps = IEEE80211_HTC_HT | 566 #if 0 567 IEEE80211_HTC_AMPDU | 568 #endif 569 IEEE80211_HTC_AMSDU | 570 IEEE80211_HTCAP_MAXAMSDU_3839 | 571 IEEE80211_HTCAP_SMPS_OFF; 572 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 573 574 /* set number of spatial streams */ 575 ic->ic_txstream = sc->sc_ntxstream; 576 ic->ic_rxstream = sc->sc_nrxstream; 577 } 578 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 579 580 rsu_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 581 ic->ic_channels); 582 583 ieee80211_ifattach(ic); 584 ic->ic_raw_xmit = rsu_raw_xmit; 585 ic->ic_scan_start = rsu_scan_start; 586 ic->ic_scan_end = rsu_scan_end; 587 ic->ic_getradiocaps = rsu_getradiocaps; 588 ic->ic_set_channel = rsu_set_channel; 589 ic->ic_scan_curchan = rsu_scan_curchan; 590 ic->ic_scan_mindwell = rsu_scan_mindwell; 591 ic->ic_vap_create = rsu_vap_create; 592 ic->ic_vap_delete = rsu_vap_delete; 593 ic->ic_update_promisc = rsu_update_promisc; 594 ic->ic_update_mcast = rsu_update_mcast; 595 ic->ic_ioctl = rsu_ioctl_net; 596 ic->ic_parent = rsu_parent; 597 ic->ic_transmit = rsu_transmit; 598 ic->ic_send_mgmt = rsu_send_mgmt; 599 ic->ic_update_chw = rsu_update_chw; 600 ic->ic_ampdu_enable = rsu_ampdu_enable; 601 ic->ic_wme.wme_update = rsu_wme_update; 602 603 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 604 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 605 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 606 RSU_RX_RADIOTAP_PRESENT); 607 608 if (bootverbose) 609 ieee80211_announce(ic); 610 611 return (0); 612 613 fail_rom: 614 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 615 fail_usb: 616 mtx_destroy(&sc->sc_mtx); 617 return (ENXIO); 618 } 619 620 static int 621 rsu_detach(device_t self) 622 { 623 struct rsu_softc *sc = device_get_softc(self); 624 struct ieee80211com *ic = &sc->sc_ic; 625 626 rsu_stop(sc); 627 628 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 629 630 /* 631 * Free buffers /before/ we detach from net80211, else node 632 * references to destroyed vaps will lead to a panic. 633 */ 634 /* Free Tx/Rx buffers. */ 635 RSU_LOCK(sc); 636 rsu_free_tx_list(sc); 637 rsu_free_rx_list(sc); 638 RSU_UNLOCK(sc); 639 640 /* Frames are freed; detach from net80211 */ 641 ieee80211_ifdetach(ic); 642 643 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 644 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 645 taskqueue_drain(taskqueue_thread, &sc->tx_task); 646 647 RSU_DELKEY_BMAP_LOCK_DESTROY(sc); 648 mtx_destroy(&sc->sc_mtx); 649 650 return (0); 651 } 652 653 static usb_error_t 654 rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 655 void *data) 656 { 657 usb_error_t err; 658 int ntries = 10; 659 660 RSU_ASSERT_LOCKED(sc); 661 662 while (ntries--) { 663 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 664 req, data, 0, NULL, 250 /* ms */); 665 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 666 break; 667 RSU_DPRINTF(sc, RSU_DEBUG_USB, 668 "Control request failed, %s (retries left: %d)\n", 669 usbd_errstr(err), ntries); 670 rsu_ms_delay(sc, 10); 671 } 672 673 return (err); 674 } 675 676 static struct ieee80211vap * 677 rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 678 enum ieee80211_opmode opmode, int flags, 679 const uint8_t bssid[IEEE80211_ADDR_LEN], 680 const uint8_t mac[IEEE80211_ADDR_LEN]) 681 { 682 struct rsu_softc *sc = ic->ic_softc; 683 struct rsu_vap *uvp; 684 struct ieee80211vap *vap; 685 if_t ifp; 686 687 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 688 return (NULL); 689 690 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 691 vap = &uvp->vap; 692 693 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 694 flags, bssid) != 0) { 695 /* out of memory */ 696 free(uvp, M_80211_VAP); 697 return (NULL); 698 } 699 700 ifp = vap->iv_ifp; 701 if_setcapabilities(ifp, IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 702 RSU_LOCK(sc); 703 if (sc->sc_rx_checksum_enable) 704 if_setcapenablebit(ifp, IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6, 0); 705 RSU_UNLOCK(sc); 706 707 /* override state transition machine */ 708 uvp->newstate = vap->iv_newstate; 709 if (opmode == IEEE80211_M_MONITOR) 710 vap->iv_newstate = rsu_monitor_newstate; 711 else 712 vap->iv_newstate = rsu_newstate; 713 vap->iv_key_alloc = rsu_key_alloc; 714 vap->iv_key_set = rsu_key_set; 715 vap->iv_key_delete = rsu_key_delete; 716 717 /* Limits from the r92su driver */ 718 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 719 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 720 721 /* complete setup */ 722 ieee80211_vap_attach(vap, ieee80211_media_change, 723 ieee80211_media_status, mac); 724 ic->ic_opmode = opmode; 725 726 return (vap); 727 } 728 729 static void 730 rsu_vap_delete(struct ieee80211vap *vap) 731 { 732 struct rsu_vap *uvp = RSU_VAP(vap); 733 734 ieee80211_vap_detach(vap); 735 free(uvp, M_80211_VAP); 736 } 737 738 static void 739 rsu_scan_start(struct ieee80211com *ic) 740 { 741 struct rsu_softc *sc = ic->ic_softc; 742 struct ieee80211_scan_state *ss = ic->ic_scan; 743 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 744 int error; 745 746 /* Scanning is done by the firmware. */ 747 RSU_LOCK(sc); 748 sc->sc_active_scan = !!(ss->ss_flags & IEEE80211_SCAN_ACTIVE); 749 /* XXX TODO: force awake if in network-sleep? */ 750 error = rsu_site_survey(sc, ss->ss_nssid > 0 ? &ss->ss_ssid[0] : NULL); 751 RSU_UNLOCK(sc); 752 if (error != 0) { 753 device_printf(sc->sc_dev, 754 "could not send site survey command\n"); 755 ieee80211_cancel_scan(vap); 756 } 757 } 758 759 static void 760 rsu_scan_end(struct ieee80211com *ic) 761 { 762 /* Nothing to do here. */ 763 } 764 765 static void 766 rsu_getradiocaps(struct ieee80211com *ic, 767 int maxchans, int *nchans, struct ieee80211_channel chans[]) 768 { 769 struct rsu_softc *sc = ic->ic_softc; 770 uint8_t bands[IEEE80211_MODE_BYTES]; 771 772 /* Set supported .11b and .11g rates. */ 773 memset(bands, 0, sizeof(bands)); 774 setbit(bands, IEEE80211_MODE_11B); 775 setbit(bands, IEEE80211_MODE_11G); 776 if (sc->sc_ht) 777 setbit(bands, IEEE80211_MODE_11NG); 778 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, 779 bands, (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) ? 780 NET80211_CBW_FLAG_HT40 : 0); 781 } 782 783 static void 784 rsu_set_channel(struct ieee80211com *ic) 785 { 786 struct rsu_softc *sc = ic->ic_softc; 787 788 /* 789 * Only need to set the channel in Monitor mode. AP scanning and auth 790 * are already taken care of by their respective firmware commands. 791 */ 792 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 793 struct r92s_set_channel cmd; 794 int error; 795 796 cmd.channel = IEEE80211_CHAN2IEEE(ic->ic_curchan); 797 798 RSU_LOCK(sc); 799 error = rsu_fw_cmd(sc, R92S_CMD_SET_CHANNEL, &cmd, 800 sizeof(cmd)); 801 if (error != 0) { 802 device_printf(sc->sc_dev, 803 "%s: error %d setting channel\n", __func__, 804 error); 805 } 806 RSU_UNLOCK(sc); 807 } 808 } 809 810 static void 811 rsu_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 812 { 813 /* Scan is done in rsu_scan_start(). */ 814 } 815 816 /** 817 * Called by the net80211 framework to indicate 818 * the minimum dwell time has been met, terminate the scan. 819 * We don't actually terminate the scan as the firmware will notify 820 * us when it's finished and we have no way to interrupt it. 821 */ 822 static void 823 rsu_scan_mindwell(struct ieee80211_scan_state *ss) 824 { 825 /* NB: don't try to abort scan; wait for firmware to finish */ 826 } 827 828 static void 829 rsu_update_promisc(struct ieee80211com *ic) 830 { 831 struct rsu_softc *sc = ic->ic_softc; 832 833 RSU_LOCK(sc); 834 if (sc->sc_running) 835 rsu_rxfilter_refresh(sc); 836 RSU_UNLOCK(sc); 837 } 838 839 /* 840 * The same as rtwn_get_multi_pos() / rtwn_set_multi(). 841 */ 842 static uint8_t 843 rsu_get_multi_pos(const uint8_t maddr[]) 844 { 845 uint64_t mask = 0x00004d101df481b4; 846 uint8_t pos = 0x27; /* initial value */ 847 int i, j; 848 849 for (i = 0; i < IEEE80211_ADDR_LEN; i++) 850 for (j = (i == 0) ? 1 : 0; j < 8; j++) 851 if ((maddr[i] >> j) & 1) 852 pos ^= (mask >> (i * 8 + j - 1)); 853 854 pos &= 0x3f; 855 856 return (pos); 857 } 858 859 static u_int 860 rsu_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 861 { 862 uint32_t *mfilt = arg; 863 uint8_t pos; 864 865 pos = rsu_get_multi_pos(LLADDR(sdl)); 866 mfilt[pos / 32] |= (1 << (pos % 32)); 867 868 return (1); 869 } 870 871 static void 872 rsu_set_multi(struct rsu_softc *sc) 873 { 874 struct ieee80211com *ic = &sc->sc_ic; 875 uint32_t mfilt[2]; 876 877 RSU_ASSERT_LOCKED(sc); 878 879 /* general structure was copied from ath(4). */ 880 if (ic->ic_allmulti == 0) { 881 struct ieee80211vap *vap; 882 883 /* 884 * Merge multicast addresses to form the hardware filter. 885 */ 886 mfilt[0] = mfilt[1] = 0; 887 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 888 if_foreach_llmaddr(vap->iv_ifp, rsu_hash_maddr, &mfilt); 889 } else 890 mfilt[0] = mfilt[1] = ~0; 891 892 rsu_write_4(sc, R92S_MAR + 0, mfilt[0]); 893 rsu_write_4(sc, R92S_MAR + 4, mfilt[1]); 894 895 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: MC filter %08x:%08x\n", 896 __func__, mfilt[0], mfilt[1]); 897 } 898 899 static void 900 rsu_update_mcast(struct ieee80211com *ic) 901 { 902 struct rsu_softc *sc = ic->ic_softc; 903 904 RSU_LOCK(sc); 905 if (sc->sc_running) 906 rsu_set_multi(sc); 907 RSU_UNLOCK(sc); 908 } 909 910 static int 911 rsu_alloc_list(struct rsu_softc *sc, struct rsu_data data[], 912 int ndata, int maxsz) 913 { 914 int i, error; 915 916 for (i = 0; i < ndata; i++) { 917 struct rsu_data *dp = &data[i]; 918 dp->sc = sc; 919 dp->m = NULL; 920 dp->buf = malloc(maxsz, M_USBDEV, M_NOWAIT); 921 if (dp->buf == NULL) { 922 device_printf(sc->sc_dev, 923 "could not allocate buffer\n"); 924 error = ENOMEM; 925 goto fail; 926 } 927 dp->ni = NULL; 928 } 929 930 return (0); 931 fail: 932 rsu_free_list(sc, data, ndata); 933 return (error); 934 } 935 936 static int 937 rsu_alloc_rx_list(struct rsu_softc *sc) 938 { 939 int error, i; 940 941 error = rsu_alloc_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT, 942 RSU_RXBUFSZ); 943 if (error != 0) 944 return (error); 945 946 STAILQ_INIT(&sc->sc_rx_active); 947 STAILQ_INIT(&sc->sc_rx_inactive); 948 949 for (i = 0; i < RSU_RX_LIST_COUNT; i++) 950 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i], next); 951 952 return (0); 953 } 954 955 static int 956 rsu_alloc_tx_list(struct rsu_softc *sc) 957 { 958 int error, i; 959 960 error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT, 961 RSU_TXBUFSZ); 962 if (error != 0) 963 return (error); 964 965 STAILQ_INIT(&sc->sc_tx_inactive); 966 967 for (i = 0; i != RSU_N_TRANSFER; i++) { 968 STAILQ_INIT(&sc->sc_tx_active[i]); 969 STAILQ_INIT(&sc->sc_tx_pending[i]); 970 } 971 972 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 973 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i], next); 974 } 975 976 return (0); 977 } 978 979 static void 980 rsu_free_tx_list(struct rsu_softc *sc) 981 { 982 int i; 983 984 /* prevent further allocations from TX list(s) */ 985 STAILQ_INIT(&sc->sc_tx_inactive); 986 987 for (i = 0; i != RSU_N_TRANSFER; i++) { 988 STAILQ_INIT(&sc->sc_tx_active[i]); 989 STAILQ_INIT(&sc->sc_tx_pending[i]); 990 } 991 992 rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT); 993 } 994 995 static void 996 rsu_free_rx_list(struct rsu_softc *sc) 997 { 998 /* prevent further allocations from RX list(s) */ 999 STAILQ_INIT(&sc->sc_rx_inactive); 1000 STAILQ_INIT(&sc->sc_rx_active); 1001 1002 rsu_free_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT); 1003 } 1004 1005 static void 1006 rsu_free_list(struct rsu_softc *sc, struct rsu_data data[], int ndata) 1007 { 1008 int i; 1009 1010 for (i = 0; i < ndata; i++) { 1011 struct rsu_data *dp = &data[i]; 1012 1013 if (dp->buf != NULL) { 1014 free(dp->buf, M_USBDEV); 1015 dp->buf = NULL; 1016 } 1017 if (dp->ni != NULL) { 1018 ieee80211_free_node(dp->ni); 1019 dp->ni = NULL; 1020 } 1021 } 1022 } 1023 1024 static struct rsu_data * 1025 _rsu_getbuf(struct rsu_softc *sc) 1026 { 1027 struct rsu_data *bf; 1028 1029 bf = STAILQ_FIRST(&sc->sc_tx_inactive); 1030 if (bf != NULL) 1031 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next); 1032 else 1033 bf = NULL; 1034 return (bf); 1035 } 1036 1037 static struct rsu_data * 1038 rsu_getbuf(struct rsu_softc *sc) 1039 { 1040 struct rsu_data *bf; 1041 1042 RSU_ASSERT_LOCKED(sc); 1043 1044 bf = _rsu_getbuf(sc); 1045 if (bf == NULL) { 1046 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: no buffers\n", __func__); 1047 } 1048 return (bf); 1049 } 1050 1051 static void 1052 rsu_freebuf(struct rsu_softc *sc, struct rsu_data *bf) 1053 { 1054 1055 RSU_ASSERT_LOCKED(sc); 1056 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, bf, next); 1057 } 1058 1059 static int 1060 rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1061 int len) 1062 { 1063 usb_device_request_t req; 1064 1065 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1066 req.bRequest = R92S_REQ_REGS; 1067 USETW(req.wValue, addr); 1068 USETW(req.wIndex, 0); 1069 USETW(req.wLength, len); 1070 1071 return (rsu_do_request(sc, &req, buf)); 1072 } 1073 1074 static void 1075 rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 1076 { 1077 rsu_write_region_1(sc, addr, &val, 1); 1078 } 1079 1080 static void 1081 rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 1082 { 1083 val = htole16(val); 1084 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 1085 } 1086 1087 static void 1088 rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 1089 { 1090 val = htole32(val); 1091 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 1092 } 1093 1094 static int 1095 rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1096 int len) 1097 { 1098 usb_device_request_t req; 1099 1100 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1101 req.bRequest = R92S_REQ_REGS; 1102 USETW(req.wValue, addr); 1103 USETW(req.wIndex, 0); 1104 USETW(req.wLength, len); 1105 1106 return (rsu_do_request(sc, &req, buf)); 1107 } 1108 1109 static uint8_t 1110 rsu_read_1(struct rsu_softc *sc, uint16_t addr) 1111 { 1112 uint8_t val; 1113 1114 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 1115 return (0xff); 1116 return (val); 1117 } 1118 1119 static uint16_t 1120 rsu_read_2(struct rsu_softc *sc, uint16_t addr) 1121 { 1122 uint16_t val; 1123 1124 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 1125 return (0xffff); 1126 return (le16toh(val)); 1127 } 1128 1129 static uint32_t 1130 rsu_read_4(struct rsu_softc *sc, uint16_t addr) 1131 { 1132 uint32_t val; 1133 1134 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 1135 return (0xffffffff); 1136 return (le32toh(val)); 1137 } 1138 1139 static int 1140 rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 1141 { 1142 int ntries; 1143 1144 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 1145 rsu_ms_delay(sc, 1); 1146 for (ntries = 0; ntries < 50; ntries++) { 1147 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 1148 return (0); 1149 rsu_ms_delay(sc, 1); 1150 } 1151 return (ETIMEDOUT); 1152 } 1153 1154 static uint8_t 1155 rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 1156 { 1157 uint32_t reg; 1158 int ntries; 1159 1160 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1161 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 1162 reg &= ~R92S_EFUSE_CTRL_VALID; 1163 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 1164 /* Wait for read operation to complete. */ 1165 for (ntries = 0; ntries < 100; ntries++) { 1166 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1167 if (reg & R92S_EFUSE_CTRL_VALID) 1168 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 1169 rsu_ms_delay(sc, 1); 1170 } 1171 device_printf(sc->sc_dev, 1172 "could not read efuse byte at address 0x%x\n", addr); 1173 return (0xff); 1174 } 1175 1176 static int 1177 rsu_read_rom(struct rsu_softc *sc) 1178 { 1179 uint8_t *rom = sc->rom; 1180 uint16_t addr = 0; 1181 uint32_t reg; 1182 uint8_t off, msk; 1183 int i; 1184 1185 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 1186 reg = rsu_read_1(sc, R92S_EE_9346CR); 1187 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 1188 return (EIO); 1189 1190 /* Turn on 2.5V to prevent eFuse leakage. */ 1191 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 1192 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 1193 rsu_ms_delay(sc, 1); 1194 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 1195 1196 /* Read full ROM image. */ 1197 memset(&sc->rom, 0xff, sizeof(sc->rom)); 1198 while (addr < 512) { 1199 reg = rsu_efuse_read_1(sc, addr); 1200 if (reg == 0xff) 1201 break; 1202 addr++; 1203 off = reg >> 4; 1204 msk = reg & 0xf; 1205 for (i = 0; i < 4; i++) { 1206 if (msk & (1 << i)) 1207 continue; 1208 rom[off * 8 + i * 2 + 0] = 1209 rsu_efuse_read_1(sc, addr); 1210 addr++; 1211 rom[off * 8 + i * 2 + 1] = 1212 rsu_efuse_read_1(sc, addr); 1213 addr++; 1214 } 1215 } 1216 #ifdef USB_DEBUG 1217 if (rsu_debug & RSU_DEBUG_RESET) { 1218 /* Dump ROM content. */ 1219 printf("\n"); 1220 for (i = 0; i < sizeof(sc->rom); i++) 1221 printf("%02x:", rom[i]); 1222 printf("\n"); 1223 } 1224 #endif 1225 return (0); 1226 } 1227 1228 static int 1229 rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 1230 { 1231 const uint8_t which = RSU_H2C_ENDPOINT; 1232 struct rsu_data *data; 1233 struct r92s_tx_desc *txd; 1234 struct r92s_fw_cmd_hdr *cmd; 1235 int cmdsz; 1236 int xferlen; 1237 1238 RSU_ASSERT_LOCKED(sc); 1239 1240 data = rsu_getbuf(sc); 1241 if (data == NULL) 1242 return (ENOMEM); 1243 1244 /* Blank the entire payload, just to be safe */ 1245 memset(data->buf, '\0', RSU_TXBUFSZ); 1246 1247 /* Round-up command length to a multiple of 8 bytes. */ 1248 /* XXX TODO: is this required? */ 1249 cmdsz = (len + 7) & ~7; 1250 1251 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 1252 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 1253 memset(data->buf, 0, xferlen); 1254 1255 /* Setup Tx descriptor. */ 1256 txd = (struct r92s_tx_desc *)data->buf; 1257 txd->txdw0 = htole32( 1258 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1259 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 1260 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1261 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 1262 1263 /* Setup command header. */ 1264 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 1265 cmd->len = htole16(cmdsz); 1266 cmd->code = code; 1267 cmd->seq = sc->cmd_seq; 1268 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 1269 1270 /* Copy command payload. */ 1271 memcpy(&cmd[1], buf, len); 1272 1273 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FWCMD, 1274 "%s: Tx cmd code=0x%x len=0x%x\n", 1275 __func__, code, cmdsz); 1276 data->buflen = xferlen; 1277 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 1278 usbd_transfer_start(sc->sc_xfer[which]); 1279 1280 return (0); 1281 } 1282 1283 /* ARGSUSED */ 1284 static void 1285 rsu_calib_task(void *arg, int pending __unused) 1286 { 1287 struct rsu_softc *sc = arg; 1288 #ifdef notyet 1289 uint32_t reg; 1290 #endif 1291 1292 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: running calibration task\n", 1293 __func__); 1294 1295 RSU_LOCK(sc); 1296 #ifdef notyet 1297 /* Read WPS PBC status. */ 1298 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 1299 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 1300 rsu_write_1(sc, R92S_GPIO_IO_SEL, 1301 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 1302 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 1303 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 1304 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "WPS PBC is pushed\n"); 1305 #endif 1306 /* Read current signal level. */ 1307 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 1308 sc->sc_currssi = rsu_read_4(sc, R92S_IOCMD_DATA); 1309 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: RSSI=%d (%d)\n", 1310 __func__, sc->sc_currssi, 1311 rsu_hwrssi_to_rssi(sc, sc->sc_currssi)); 1312 } 1313 if (sc->sc_calibrating) 1314 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1315 RSU_UNLOCK(sc); 1316 } 1317 1318 static void 1319 rsu_tx_task(void *arg, int pending __unused) 1320 { 1321 struct rsu_softc *sc = arg; 1322 1323 RSU_LOCK(sc); 1324 _rsu_start(sc); 1325 RSU_UNLOCK(sc); 1326 } 1327 1328 #define RSU_PWR_UNKNOWN 0x0 1329 #define RSU_PWR_ACTIVE 0x1 1330 #define RSU_PWR_OFF 0x2 1331 #define RSU_PWR_SLEEP 0x3 1332 1333 /* 1334 * Set the current power state. 1335 * 1336 * The rtlwifi code doesn't do this so aggressively; it 1337 * waits for an idle period after association with 1338 * no traffic before doing this. 1339 * 1340 * For now - it's on in all states except RUN, and 1341 * in RUN it'll transition to allow sleep. 1342 */ 1343 1344 struct r92s_pwr_cmd { 1345 uint8_t mode; 1346 uint8_t smart_ps; 1347 uint8_t bcn_pass_time; 1348 }; 1349 1350 static int 1351 rsu_set_fw_power_state(struct rsu_softc *sc, int state) 1352 { 1353 struct r92s_set_pwr_mode cmd; 1354 //struct r92s_pwr_cmd cmd; 1355 int error; 1356 1357 RSU_ASSERT_LOCKED(sc); 1358 1359 /* only change state if required */ 1360 if (sc->sc_curpwrstate == state) 1361 return (0); 1362 1363 memset(&cmd, 0, sizeof(cmd)); 1364 1365 switch (state) { 1366 case RSU_PWR_ACTIVE: 1367 /* Force the hardware awake */ 1368 rsu_write_1(sc, R92S_USB_HRPWM, 1369 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 1370 cmd.mode = R92S_PS_MODE_ACTIVE; 1371 break; 1372 case RSU_PWR_SLEEP: 1373 cmd.mode = R92S_PS_MODE_DTIM; /* XXX configurable? */ 1374 cmd.smart_ps = 1; /* XXX 2 if doing p2p */ 1375 cmd.bcn_pass_time = 5; /* in 100mS usb.c, linux/rtlwifi */ 1376 break; 1377 case RSU_PWR_OFF: 1378 cmd.mode = R92S_PS_MODE_RADIOOFF; 1379 break; 1380 default: 1381 device_printf(sc->sc_dev, "%s: unknown ps mode (%d)\n", 1382 __func__, 1383 state); 1384 return (ENXIO); 1385 } 1386 1387 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1388 "%s: setting ps mode to %d (mode %d)\n", 1389 __func__, state, cmd.mode); 1390 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 1391 if (error == 0) 1392 sc->sc_curpwrstate = state; 1393 1394 return (error); 1395 } 1396 1397 static void 1398 rsu_set_led(struct rsu_softc *sc, int on) 1399 { 1400 rsu_write_1(sc, R92S_LEDCFG, 1401 (rsu_read_1(sc, R92S_LEDCFG) & 0xf0) | (!on << 3)); 1402 } 1403 1404 static int 1405 rsu_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, 1406 int arg) 1407 { 1408 struct ieee80211com *ic = vap->iv_ic; 1409 struct rsu_softc *sc = ic->ic_softc; 1410 struct rsu_vap *uvp = RSU_VAP(vap); 1411 1412 if (vap->iv_state != nstate) { 1413 IEEE80211_UNLOCK(ic); 1414 RSU_LOCK(sc); 1415 1416 switch (nstate) { 1417 case IEEE80211_S_INIT: 1418 sc->sc_vap_is_running = 0; 1419 rsu_set_led(sc, 0); 1420 break; 1421 case IEEE80211_S_RUN: 1422 sc->sc_vap_is_running = 1; 1423 rsu_set_led(sc, 1); 1424 break; 1425 default: 1426 /* NOTREACHED */ 1427 break; 1428 } 1429 rsu_rxfilter_refresh(sc); 1430 1431 RSU_UNLOCK(sc); 1432 IEEE80211_LOCK(ic); 1433 } 1434 1435 return (uvp->newstate(vap, nstate, arg)); 1436 } 1437 1438 static int 1439 rsu_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1440 { 1441 struct rsu_vap *uvp = RSU_VAP(vap); 1442 struct ieee80211com *ic = vap->iv_ic; 1443 struct rsu_softc *sc = ic->ic_softc; 1444 struct ieee80211_node *ni; 1445 struct ieee80211_rateset *rs; 1446 enum ieee80211_state ostate; 1447 int error, startcal = 0; 1448 1449 ostate = vap->iv_state; 1450 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: %s -> %s\n", 1451 __func__, 1452 ieee80211_state_name[ostate], 1453 ieee80211_state_name[nstate]); 1454 1455 IEEE80211_UNLOCK(ic); 1456 if (ostate == IEEE80211_S_RUN) { 1457 RSU_LOCK(sc); 1458 /* Stop calibration. */ 1459 sc->sc_calibrating = 0; 1460 1461 /* Pause Tx for AC queues. */ 1462 rsu_write_1(sc, R92S_TXPAUSE, R92S_TXPAUSE_AC); 1463 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1464 1465 RSU_UNLOCK(sc); 1466 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 1467 taskqueue_drain(taskqueue_thread, &sc->tx_task); 1468 RSU_LOCK(sc); 1469 /* Disassociate from our current BSS. */ 1470 rsu_disconnect(sc); 1471 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1472 1473 /* Refresh Rx filter (may be modified by firmware). */ 1474 sc->sc_vap_is_running = 0; 1475 rsu_rxfilter_refresh(sc); 1476 1477 /* Reinstall static keys. */ 1478 if (sc->sc_running) 1479 rsu_reinit_static_keys(sc); 1480 } else 1481 RSU_LOCK(sc); 1482 switch (nstate) { 1483 case IEEE80211_S_INIT: 1484 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1485 break; 1486 case IEEE80211_S_AUTH: 1487 ni = ieee80211_ref_node(vap->iv_bss); 1488 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1489 error = rsu_join_bss(sc, ni); 1490 ieee80211_free_node(ni); 1491 if (error != 0) { 1492 device_printf(sc->sc_dev, 1493 "could not send join command\n"); 1494 } 1495 break; 1496 case IEEE80211_S_RUN: 1497 /* Flush all AC queues. */ 1498 rsu_write_1(sc, R92S_TXPAUSE, 0); 1499 1500 ni = ieee80211_ref_node(vap->iv_bss); 1501 rs = &ni->ni_rates; 1502 /* Indicate highest supported rate. */ 1503 ni->ni_txrate = rs->rs_rates[rs->rs_nrates - 1]; 1504 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1505 ieee80211_free_node(ni); 1506 startcal = 1; 1507 break; 1508 default: 1509 break; 1510 } 1511 if (startcal != 0) { 1512 sc->sc_calibrating = 1; 1513 /* Start periodic calibration. */ 1514 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, 1515 hz); 1516 } 1517 RSU_UNLOCK(sc); 1518 IEEE80211_LOCK(ic); 1519 return (uvp->newstate(vap, nstate, arg)); 1520 } 1521 1522 static int 1523 rsu_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1524 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1525 { 1526 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1527 int is_checked = 0; 1528 1529 if (&vap->iv_nw_keys[0] <= k && 1530 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1531 *keyix = ieee80211_crypto_get_key_wepidx(vap, k); 1532 } else { 1533 if (vap->iv_opmode != IEEE80211_M_STA) { 1534 *keyix = 0; 1535 /* TODO: obtain keyix from node id */ 1536 is_checked = 1; 1537 k->wk_flags |= IEEE80211_KEY_SWCRYPT; 1538 } else 1539 *keyix = R92S_MACID_BSS; 1540 } 1541 1542 if (!is_checked) { 1543 RSU_LOCK(sc); 1544 if (isset(sc->keys_bmap, *keyix)) { 1545 device_printf(sc->sc_dev, 1546 "%s: key slot %d is already used!\n", 1547 __func__, *keyix); 1548 RSU_UNLOCK(sc); 1549 return (0); 1550 } 1551 setbit(sc->keys_bmap, *keyix); 1552 RSU_UNLOCK(sc); 1553 } 1554 1555 *rxkeyix = *keyix; 1556 1557 return (1); 1558 } 1559 1560 static int 1561 rsu_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k, 1562 int set) 1563 { 1564 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1565 int ret; 1566 1567 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 1568 /* Not for us. */ 1569 return (1); 1570 } 1571 1572 /* Handle group keys. */ 1573 if (&vap->iv_nw_keys[0] <= k && 1574 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1575 KASSERT(k->wk_keyix < nitems(sc->group_keys), 1576 ("keyix %u > %zu\n", k->wk_keyix, nitems(sc->group_keys))); 1577 1578 RSU_LOCK(sc); 1579 sc->group_keys[k->wk_keyix] = (set ? k : NULL); 1580 if (!sc->sc_running) { 1581 /* Static keys will be set during device startup. */ 1582 RSU_UNLOCK(sc); 1583 return (1); 1584 } 1585 1586 if (set) 1587 ret = rsu_set_key_group(sc, k); 1588 else 1589 ret = rsu_delete_key(sc, k->wk_keyix); 1590 RSU_UNLOCK(sc); 1591 1592 return (!ret); 1593 } 1594 1595 if (set) { 1596 /* wait for pending key removal */ 1597 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 1598 1599 RSU_LOCK(sc); 1600 ret = rsu_set_key_pair(sc, k); 1601 RSU_UNLOCK(sc); 1602 } else { 1603 RSU_DELKEY_BMAP_LOCK(sc); 1604 setbit(sc->free_keys_bmap, k->wk_keyix); 1605 RSU_DELKEY_BMAP_UNLOCK(sc); 1606 1607 /* workaround ieee80211_node_delucastkey() locking */ 1608 taskqueue_enqueue(taskqueue_thread, &sc->del_key_task); 1609 ret = 0; /* fake success */ 1610 } 1611 1612 return (!ret); 1613 } 1614 1615 static int 1616 rsu_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1617 { 1618 return (rsu_process_key(vap, k, 1)); 1619 } 1620 1621 static int 1622 rsu_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1623 { 1624 return (rsu_process_key(vap, k, 0)); 1625 } 1626 1627 static int 1628 rsu_cam_read(struct rsu_softc *sc, uint8_t addr, uint32_t *val) 1629 { 1630 int ntries; 1631 1632 rsu_write_4(sc, R92S_CAMCMD, 1633 R92S_CAMCMD_POLLING | SM(R92S_CAMCMD_ADDR, addr)); 1634 for (ntries = 0; ntries < 10; ntries++) { 1635 if (!(rsu_read_4(sc, R92S_CAMCMD) & R92S_CAMCMD_POLLING)) 1636 break; 1637 1638 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1639 } 1640 if (ntries == 10) { 1641 device_printf(sc->sc_dev, 1642 "%s: cannot read CAM entry at address %02X\n", 1643 __func__, addr); 1644 return (ETIMEDOUT); 1645 } 1646 1647 *val = rsu_read_4(sc, R92S_CAMREAD); 1648 1649 return (0); 1650 } 1651 1652 static void 1653 rsu_cam_write(struct rsu_softc *sc, uint8_t addr, uint32_t data) 1654 { 1655 1656 rsu_write_4(sc, R92S_CAMWRITE, data); 1657 rsu_write_4(sc, R92S_CAMCMD, 1658 R92S_CAMCMD_POLLING | R92S_CAMCMD_WRITE | 1659 SM(R92S_CAMCMD_ADDR, addr)); 1660 } 1661 1662 static int 1663 rsu_key_check(struct rsu_softc *sc, ieee80211_keyix keyix, int is_valid) 1664 { 1665 uint32_t val; 1666 int error, ntries; 1667 1668 for (ntries = 0; ntries < 20; ntries++) { 1669 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1670 1671 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1672 if (error != 0) { 1673 device_printf(sc->sc_dev, 1674 "%s: cannot check key status!\n", __func__); 1675 return (error); 1676 } 1677 if (((val & R92S_CAM_VALID) == 0) ^ is_valid) 1678 break; 1679 } 1680 if (ntries == 20) { 1681 device_printf(sc->sc_dev, 1682 "%s: key %d is %s marked as valid, rejecting request\n", 1683 __func__, keyix, is_valid ? "not" : "still"); 1684 return (EIO); 1685 } 1686 1687 return (0); 1688 } 1689 1690 /* 1691 * Map net80211 cipher to RTL8712 security mode. 1692 */ 1693 static uint8_t 1694 rsu_crypto_mode(struct rsu_softc *sc, u_int cipher, int keylen) 1695 { 1696 switch (cipher) { 1697 case IEEE80211_CIPHER_WEP: 1698 return keylen < 8 ? R92S_KEY_ALGO_WEP40 : R92S_KEY_ALGO_WEP104; 1699 case IEEE80211_CIPHER_TKIP: 1700 return R92S_KEY_ALGO_TKIP; 1701 case IEEE80211_CIPHER_AES_CCM: 1702 return R92S_KEY_ALGO_AES; 1703 default: 1704 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1705 return R92S_KEY_ALGO_INVALID; 1706 } 1707 } 1708 1709 static int 1710 rsu_set_key_group(struct rsu_softc *sc, const struct ieee80211_key *k) 1711 { 1712 struct r92s_fw_cmd_set_key key; 1713 uint8_t algo; 1714 int error; 1715 1716 RSU_ASSERT_LOCKED(sc); 1717 1718 /* Map net80211 cipher to HW crypto algorithm. */ 1719 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1720 if (algo == R92S_KEY_ALGO_INVALID) 1721 return (EINVAL); 1722 1723 memset(&key, 0, sizeof(key)); 1724 key.algo = algo; 1725 key.cam_id = k->wk_keyix; 1726 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1727 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1728 1729 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1730 "%s: keyix %u, group %u, algo %u/%u, flags %04X, len %u, " 1731 "macaddr %s\n", __func__, key.cam_id, key.grpkey, 1732 k->wk_cipher->ic_cipher, key.algo, k->wk_flags, k->wk_keylen, 1733 ether_sprintf(k->wk_macaddr)); 1734 1735 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1736 if (error != 0) { 1737 device_printf(sc->sc_dev, 1738 "%s: cannot send firmware command, error %d\n", 1739 __func__, error); 1740 return (error); 1741 } 1742 1743 return (rsu_key_check(sc, k->wk_keyix, 1)); 1744 } 1745 1746 static int 1747 rsu_set_key_pair(struct rsu_softc *sc, const struct ieee80211_key *k) 1748 { 1749 struct r92s_fw_cmd_set_key_mac key; 1750 uint8_t algo; 1751 int error; 1752 1753 RSU_ASSERT_LOCKED(sc); 1754 1755 if (!sc->sc_running) 1756 return (ESHUTDOWN); 1757 1758 /* Map net80211 cipher to HW crypto algorithm. */ 1759 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1760 if (algo == R92S_KEY_ALGO_INVALID) 1761 return (EINVAL); 1762 1763 memset(&key, 0, sizeof(key)); 1764 key.algo = algo; 1765 memcpy(key.macaddr, k->wk_macaddr, sizeof(key.macaddr)); 1766 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1767 1768 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1769 "%s: keyix %u, algo %u/%u, flags %04X, len %u, macaddr %s\n", 1770 __func__, k->wk_keyix, k->wk_cipher->ic_cipher, key.algo, 1771 k->wk_flags, k->wk_keylen, ether_sprintf(key.macaddr)); 1772 1773 error = rsu_fw_cmd(sc, R92S_CMD_SET_STA_KEY, &key, sizeof(key)); 1774 if (error != 0) { 1775 device_printf(sc->sc_dev, 1776 "%s: cannot send firmware command, error %d\n", 1777 __func__, error); 1778 return (error); 1779 } 1780 1781 return (rsu_key_check(sc, k->wk_keyix, 1)); 1782 } 1783 1784 static int 1785 rsu_reinit_static_keys(struct rsu_softc *sc) 1786 { 1787 int i, error; 1788 1789 for (i = 0; i < nitems(sc->group_keys); i++) { 1790 if (sc->group_keys[i] != NULL) { 1791 error = rsu_set_key_group(sc, sc->group_keys[i]); 1792 if (error != 0) { 1793 device_printf(sc->sc_dev, 1794 "%s: failed to set static key %d, " 1795 "error %d\n", __func__, i, error); 1796 return (error); 1797 } 1798 } 1799 } 1800 1801 return (0); 1802 } 1803 1804 static int 1805 rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix keyix) 1806 { 1807 struct r92s_fw_cmd_set_key key; 1808 uint32_t val; 1809 int error; 1810 1811 RSU_ASSERT_LOCKED(sc); 1812 1813 if (!sc->sc_running) 1814 return (0); 1815 1816 /* check if it was automatically removed by firmware */ 1817 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1818 if (error == 0 && (val & R92S_CAM_VALID) == 0) { 1819 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1820 "%s: key %u does not exist\n", __func__, keyix); 1821 clrbit(sc->keys_bmap, keyix); 1822 return (0); 1823 } 1824 1825 memset(&key, 0, sizeof(key)); 1826 key.cam_id = keyix; 1827 1828 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1829 "%s: removing key %u\n", __func__, key.cam_id); 1830 1831 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1832 if (error != 0) { 1833 device_printf(sc->sc_dev, 1834 "%s: cannot send firmware command, error %d\n", 1835 __func__, error); 1836 goto finish; 1837 } 1838 1839 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(5)); 1840 1841 /* 1842 * Clear 'valid' bit manually (cannot be done via firmware command). 1843 * Used for key check + when firmware command cannot be sent. 1844 */ 1845 finish: 1846 rsu_cam_write(sc, R92S_CAM_CTL0(keyix), 0); 1847 1848 clrbit(sc->keys_bmap, keyix); 1849 1850 return (rsu_key_check(sc, keyix, 0)); 1851 } 1852 1853 static void 1854 rsu_delete_key_pair_cb(void *arg, int pending __unused) 1855 { 1856 struct rsu_softc *sc = arg; 1857 int i; 1858 1859 RSU_DELKEY_BMAP_LOCK(sc); 1860 for (i = IEEE80211_WEP_NKID; i < R92S_CAM_ENTRY_LIMIT; i++) { 1861 if (isset(sc->free_keys_bmap, i)) { 1862 RSU_DELKEY_BMAP_UNLOCK(sc); 1863 1864 RSU_LOCK(sc); 1865 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1866 "%s: calling rsu_delete_key() with keyix = %d\n", 1867 __func__, i); 1868 (void) rsu_delete_key(sc, i); 1869 RSU_UNLOCK(sc); 1870 1871 RSU_DELKEY_BMAP_LOCK(sc); 1872 clrbit(sc->free_keys_bmap, i); 1873 1874 /* bmap can be changed */ 1875 i = IEEE80211_WEP_NKID - 1; 1876 continue; 1877 } 1878 } 1879 RSU_DELKEY_BMAP_UNLOCK(sc); 1880 } 1881 1882 static int 1883 rsu_site_survey(struct rsu_softc *sc, struct ieee80211_scan_ssid *ssid) 1884 { 1885 struct r92s_fw_cmd_sitesurvey cmd; 1886 1887 RSU_ASSERT_LOCKED(sc); 1888 1889 memset(&cmd, 0, sizeof(cmd)); 1890 /* TODO: passive channels? */ 1891 if (sc->sc_active_scan) 1892 cmd.active = htole32(1); 1893 cmd.limit = htole32(48); 1894 1895 if (ssid != NULL) { 1896 sc->sc_extra_scan = 1; 1897 cmd.ssidlen = htole32(ssid->len); 1898 memcpy(cmd.ssid, ssid->ssid, ssid->len); 1899 } 1900 #ifdef USB_DEBUG 1901 if (rsu_debug & (RSU_DEBUG_SCAN | RSU_DEBUG_FWCMD)) { 1902 device_printf(sc->sc_dev, 1903 "sending site survey command, active %d", 1904 le32toh(cmd.active)); 1905 if (ssid != NULL) { 1906 printf(", ssid: "); 1907 ieee80211_print_essid(cmd.ssid, le32toh(cmd.ssidlen)); 1908 } 1909 printf("\n"); 1910 } 1911 #endif 1912 return (rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd))); 1913 } 1914 1915 static int 1916 rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1917 { 1918 struct ieee80211com *ic = &sc->sc_ic; 1919 struct ieee80211vap *vap = ni->ni_vap; 1920 struct ndis_wlan_bssid_ex *bss; 1921 struct ndis_802_11_fixed_ies *fixed; 1922 struct r92s_fw_cmd_auth auth; 1923 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1924 uint8_t *frm; 1925 uint8_t opmode; 1926 int error; 1927 1928 RSU_ASSERT_LOCKED(sc); 1929 1930 /* Let the FW decide the opmode based on the capinfo field. */ 1931 opmode = NDIS802_11AUTOUNKNOWN; 1932 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1933 "%s: setting operating mode to %d\n", 1934 __func__, opmode); 1935 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1936 if (error != 0) 1937 return (error); 1938 1939 memset(&auth, 0, sizeof(auth)); 1940 if (vap->iv_flags & IEEE80211_F_WPA) { 1941 auth.mode = R92S_AUTHMODE_WPA; 1942 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1943 } else 1944 auth.mode = R92S_AUTHMODE_OPEN; 1945 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1946 "%s: setting auth mode to %d\n", 1947 __func__, auth.mode); 1948 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1949 if (error != 0) 1950 return (error); 1951 1952 memset(buf, 0, sizeof(buf)); 1953 bss = (struct ndis_wlan_bssid_ex *)buf; 1954 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1955 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1956 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1957 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1958 bss->privacy = htole32(1); 1959 bss->rssi = htole32(ni->ni_avgrssi); 1960 if (ic->ic_curmode == IEEE80211_MODE_11B) 1961 bss->networktype = htole32(NDIS802_11DS); 1962 else 1963 bss->networktype = htole32(NDIS802_11OFDM24); 1964 bss->config.len = htole32(sizeof(bss->config)); 1965 bss->config.bintval = htole32(ni->ni_intval); 1966 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1967 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1968 /* XXX verify how this is supposed to look! */ 1969 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1970 ni->ni_rates.rs_nrates); 1971 /* Write the fixed fields of the beacon frame. */ 1972 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1973 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1974 fixed->bintval = htole16(ni->ni_intval); 1975 fixed->capabilities = htole16(ni->ni_capinfo); 1976 /* Write IEs to be included in the association request. */ 1977 frm = (uint8_t *)&fixed[1]; 1978 frm = ieee80211_add_rsn(frm, vap); 1979 frm = ieee80211_add_wpa(frm, vap); 1980 frm = ieee80211_add_qos(frm, ni); 1981 if ((ic->ic_flags & IEEE80211_F_WME) && 1982 (ni->ni_ies.wme_ie != NULL)) 1983 frm = ieee80211_add_wme_info(frm, &ic->ic_wme, ni); 1984 if (ni->ni_flags & IEEE80211_NODE_HT) { 1985 frm = ieee80211_add_htcap(frm, ni); 1986 frm = ieee80211_add_htinfo(frm, ni); 1987 } 1988 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1989 bss->len = htole32(((frm - buf) + 3) & ~3); 1990 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 1991 "%s: sending join bss command to %s chan %d\n", 1992 __func__, 1993 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 1994 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 1995 } 1996 1997 static int 1998 rsu_disconnect(struct rsu_softc *sc) 1999 { 2000 uint32_t zero = 0; /* :-) */ 2001 2002 /* Disassociate from our current BSS. */ 2003 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2004 "%s: sending disconnect command\n", __func__); 2005 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 2006 } 2007 2008 /* 2009 * Map the hardware provided RSSI value to a signal level. 2010 * For the most part it's just something we divide by and cap 2011 * so it doesn't overflow the representation by net80211. 2012 */ 2013 static int 2014 rsu_hwrssi_to_rssi(struct rsu_softc *sc, int hw_rssi) 2015 { 2016 int v; 2017 2018 if (hw_rssi == 0) 2019 return (0); 2020 v = hw_rssi >> 4; 2021 if (v > 80) 2022 v = 80; 2023 return (v); 2024 } 2025 2026 CTASSERT(MCLBYTES > sizeof(struct ieee80211_frame)); 2027 2028 static void 2029 rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 2030 { 2031 struct ieee80211com *ic = &sc->sc_ic; 2032 struct ieee80211_frame *wh; 2033 struct ndis_wlan_bssid_ex *bss; 2034 struct ieee80211_rx_stats rxs; 2035 struct mbuf *m; 2036 uint32_t ieslen; 2037 uint32_t pktlen; 2038 2039 if (__predict_false(len < sizeof(*bss))) 2040 return; 2041 bss = (struct ndis_wlan_bssid_ex *)buf; 2042 ieslen = le32toh(bss->ieslen); 2043 /* range check length of information element */ 2044 if (__predict_false(ieslen > (uint32_t)(len - sizeof(*bss)))) 2045 return; 2046 2047 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2048 "%s: found BSS %s: len=%d chan=%d inframode=%d " 2049 "networktype=%d privacy=%d, RSSI=%d\n", 2050 __func__, 2051 ether_sprintf(bss->macaddr), ieslen, 2052 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 2053 le32toh(bss->networktype), le32toh(bss->privacy), 2054 le32toh(bss->rssi)); 2055 2056 /* Build a fake beacon frame to let net80211 do all the parsing. */ 2057 /* XXX TODO: just call the new scan API methods! */ 2058 if (__predict_false(ieslen > (size_t)(MCLBYTES - sizeof(*wh)))) 2059 return; 2060 pktlen = sizeof(*wh) + ieslen; 2061 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2062 if (__predict_false(m == NULL)) 2063 return; 2064 wh = mtod(m, struct ieee80211_frame *); 2065 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2066 IEEE80211_FC0_SUBTYPE_BEACON; 2067 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2068 USETW(wh->i_dur, 0); 2069 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 2070 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 2071 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 2072 *(uint16_t *)wh->i_seq = 0; 2073 memcpy(&wh[1], (uint8_t *)&bss[1], ieslen); 2074 2075 /* Finalize mbuf. */ 2076 m->m_pkthdr.len = m->m_len = pktlen; 2077 2078 /* Set channel flags for input path */ 2079 bzero(&rxs, sizeof(rxs)); 2080 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 2081 rxs.r_flags |= IEEE80211_R_BAND; 2082 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2083 rxs.c_ieee = le32toh(bss->config.dsconfig); 2084 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 2085 rxs.c_band = IEEE80211_CHAN_2GHZ; 2086 /* This is a number from 0..100; so let's just divide it down a bit */ 2087 rxs.c_rssi = le32toh(bss->rssi) / 2; 2088 rxs.c_nf = -96; 2089 if (ieee80211_add_rx_params(m, &rxs) == 0) 2090 return; 2091 2092 /* XXX avoid a LOR */ 2093 RSU_UNLOCK(sc); 2094 ieee80211_input_mimo_all(ic, m); 2095 RSU_LOCK(sc); 2096 } 2097 2098 static void 2099 rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 2100 { 2101 struct ieee80211com *ic = &sc->sc_ic; 2102 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2103 struct ieee80211_node *ni = vap->iv_bss; 2104 struct r92s_event_join_bss *rsp; 2105 uint32_t tmp; 2106 int res; 2107 2108 if (__predict_false(len < sizeof(*rsp))) 2109 return; 2110 rsp = (struct r92s_event_join_bss *)buf; 2111 res = (int)le32toh(rsp->join_res); 2112 2113 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2114 "%s: Rx join BSS event len=%d res=%d\n", 2115 __func__, len, res); 2116 2117 /* 2118 * XXX Don't do this; there's likely a better way to tell 2119 * the caller we failed. 2120 */ 2121 if (res <= 0) { 2122 RSU_UNLOCK(sc); 2123 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2124 RSU_LOCK(sc); 2125 return; 2126 } 2127 2128 tmp = le32toh(rsp->associd); 2129 if (tmp >= vap->iv_max_aid) { 2130 RSU_DPRINTF(sc, RSU_DEBUG_ANY, "Assoc ID overflow\n"); 2131 tmp = 1; 2132 } 2133 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2134 "%s: associated with %s associd=%d\n", 2135 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 2136 /* XXX is this required? What's the top two bits for again? */ 2137 ni->ni_associd = tmp | 0xc000; 2138 2139 /* Refresh Rx filter (was changed by firmware). */ 2140 sc->sc_vap_is_running = 1; 2141 rsu_rxfilter_refresh(sc); 2142 2143 RSU_UNLOCK(sc); 2144 ieee80211_new_state(vap, IEEE80211_S_RUN, 2145 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 2146 RSU_LOCK(sc); 2147 } 2148 2149 static void 2150 rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 2151 { 2152 struct ieee80211com *ic = &sc->sc_ic; 2153 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2154 struct r92s_add_ba_event *ba = (void *) buf; 2155 struct ieee80211_node *ni; 2156 2157 if (len < sizeof(*ba)) { 2158 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 2159 return; 2160 } 2161 2162 if (vap == NULL) 2163 return; 2164 2165 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: mac=%s, tid=%d, ssn=%d\n", 2166 __func__, 2167 ether_sprintf(ba->mac_addr), 2168 (int) ba->tid, 2169 (int) le16toh(ba->ssn)); 2170 2171 /* XXX do node lookup; this is STA specific */ 2172 2173 ni = ieee80211_ref_node(vap->iv_bss); 2174 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 2175 ieee80211_free_node(ni); 2176 } 2177 2178 static void 2179 rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 2180 { 2181 struct ieee80211com *ic = &sc->sc_ic; 2182 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2183 2184 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2185 "%s: Rx event code=%d len=%d\n", __func__, code, len); 2186 switch (code) { 2187 case R92S_EVT_SURVEY: 2188 rsu_event_survey(sc, buf, len); 2189 break; 2190 case R92S_EVT_SURVEY_DONE: 2191 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2192 "%s: %s scan done, found %d BSS\n", 2193 __func__, sc->sc_extra_scan ? "direct" : "broadcast", 2194 le32toh(*(uint32_t *)buf)); 2195 if (sc->sc_extra_scan == 1) { 2196 /* Send broadcast probe request. */ 2197 sc->sc_extra_scan = 0; 2198 if (vap != NULL && rsu_site_survey(sc, NULL) != 0) { 2199 RSU_UNLOCK(sc); 2200 ieee80211_cancel_scan(vap); 2201 RSU_LOCK(sc); 2202 } 2203 break; 2204 } 2205 if (vap != NULL) { 2206 RSU_UNLOCK(sc); 2207 ieee80211_scan_done(vap); 2208 RSU_LOCK(sc); 2209 } 2210 break; 2211 case R92S_EVT_JOIN_BSS: 2212 if (vap->iv_state == IEEE80211_S_AUTH) 2213 rsu_event_join_bss(sc, buf, len); 2214 break; 2215 case R92S_EVT_DEL_STA: 2216 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 2217 "%s: disassociated from %s\n", __func__, 2218 ether_sprintf(buf)); 2219 if (vap->iv_state == IEEE80211_S_RUN && 2220 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 2221 RSU_UNLOCK(sc); 2222 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2223 RSU_LOCK(sc); 2224 } 2225 break; 2226 case R92S_EVT_WPS_PBC: 2227 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2228 "%s: WPS PBC pushed.\n", __func__); 2229 break; 2230 case R92S_EVT_FWDBG: 2231 buf[60] = '\0'; 2232 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 2233 break; 2234 case R92S_EVT_ADDBA_REQ_REPORT: 2235 rsu_event_addba_req_report(sc, buf, len); 2236 break; 2237 default: 2238 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 2239 break; 2240 } 2241 } 2242 2243 static void 2244 rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 2245 { 2246 struct r92s_fw_cmd_hdr *cmd; 2247 int cmdsz; 2248 2249 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 2250 2251 /* Skip Rx status. */ 2252 buf += sizeof(struct r92s_rx_stat); 2253 len -= sizeof(struct r92s_rx_stat); 2254 2255 /* Process all events. */ 2256 for (;;) { 2257 /* Check that command header fits. */ 2258 if (__predict_false(len < sizeof(*cmd))) 2259 break; 2260 cmd = (struct r92s_fw_cmd_hdr *)buf; 2261 /* Check that command payload fits. */ 2262 cmdsz = le16toh(cmd->len); 2263 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 2264 break; 2265 2266 /* Process firmware event. */ 2267 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 2268 2269 if (!(cmd->seq & R92S_FW_CMD_MORE)) 2270 break; 2271 buf += sizeof(*cmd) + cmdsz; 2272 len -= sizeof(*cmd) + cmdsz; 2273 } 2274 } 2275 2276 static int8_t 2277 rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 2278 { 2279 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 2280 struct r92s_rx_phystat *phy; 2281 struct r92s_rx_cck *cck; 2282 uint8_t rpt; 2283 int8_t rssi; 2284 2285 if (rate <= 3) { 2286 cck = (struct r92s_rx_cck *)physt; 2287 rpt = (cck->agc_rpt >> 6) & 0x3; 2288 rssi = cck->agc_rpt & 0x3e; 2289 rssi = cckoff[rpt] - rssi; 2290 } else { /* OFDM/HT. */ 2291 phy = (struct r92s_rx_phystat *)physt; 2292 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 2293 } 2294 return (rssi); 2295 } 2296 2297 static struct mbuf * 2298 rsu_rx_copy_to_mbuf(struct rsu_softc *sc, struct r92s_rx_stat *stat, 2299 int totlen) 2300 { 2301 struct ieee80211com *ic = &sc->sc_ic; 2302 struct mbuf *m; 2303 uint32_t rxdw0; 2304 int pktlen; 2305 2306 rxdw0 = le32toh(stat->rxdw0); 2307 if (__predict_false(rxdw0 & (R92S_RXDW0_CRCERR | R92S_RXDW0_ICVERR))) { 2308 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2309 "%s: RX flags error (%s)\n", __func__, 2310 rxdw0 & R92S_RXDW0_CRCERR ? "CRC" : "ICV"); 2311 goto fail; 2312 } 2313 2314 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2315 if (__predict_false(pktlen < sizeof (struct ieee80211_frame_ack))) { 2316 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2317 "%s: frame is too short: %d\n", __func__, pktlen); 2318 goto fail; 2319 } 2320 2321 m = m_get2(totlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2322 if (__predict_false(m == NULL)) { 2323 device_printf(sc->sc_dev, 2324 "%s: could not allocate RX mbuf, totlen %d\n", 2325 __func__, totlen); 2326 goto fail; 2327 } 2328 2329 /* Finalize mbuf. */ 2330 memcpy(mtod(m, uint8_t *), (uint8_t *)stat, totlen); 2331 m->m_pkthdr.len = m->m_len = totlen; 2332 2333 return (m); 2334 fail: 2335 counter_u64_add(ic->ic_ierrors, 1); 2336 return (NULL); 2337 } 2338 2339 static uint32_t 2340 rsu_get_tsf_low(struct rsu_softc *sc) 2341 { 2342 return (rsu_read_4(sc, R92S_TSFTR)); 2343 } 2344 2345 static uint32_t 2346 rsu_get_tsf_high(struct rsu_softc *sc) 2347 { 2348 return (rsu_read_4(sc, R92S_TSFTR + 4)); 2349 } 2350 2351 static struct ieee80211_node * 2352 rsu_rx_frame(struct rsu_softc *sc, struct mbuf *m) 2353 { 2354 struct ieee80211com *ic = &sc->sc_ic; 2355 struct ieee80211_frame_min *wh; 2356 struct ieee80211_rx_stats rxs; 2357 struct r92s_rx_stat *stat; 2358 uint32_t rxdw0, rxdw3; 2359 uint8_t cipher, rate; 2360 int infosz; 2361 int rssi; 2362 2363 stat = mtod(m, struct r92s_rx_stat *); 2364 rxdw0 = le32toh(stat->rxdw0); 2365 rxdw3 = le32toh(stat->rxdw3); 2366 2367 rate = MS(rxdw3, R92S_RXDW3_RATE); 2368 cipher = MS(rxdw0, R92S_RXDW0_CIPHER); 2369 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2370 2371 /* Get RSSI from PHY status descriptor if present. */ 2372 if (infosz != 0 && (rxdw0 & R92S_RXDW0_PHYST)) 2373 rssi = rsu_get_rssi(sc, rate, &stat[1]); 2374 else { 2375 /* Cheat and get the last calibrated RSSI */ 2376 rssi = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 2377 } 2378 2379 /* Hardware does Rx TCP checksum offload. */ 2380 /* 2381 * This flag can be set for some other 2382 * (e.g., EAPOL) frame types, so don't rely on it. 2383 */ 2384 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 2385 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2386 "%s: TCP/IP checksums: %schecked / %schecked\n", 2387 __func__, 2388 (rxdw3 & R92S_RXDW3_TCPCHKRPT) ? "" : "not ", 2389 (rxdw3 & R92S_RXDW3_IPCHKRPT) ? "" : "not "); 2390 2391 /* 2392 * 'IP header checksum valid' bit will not be set if 2393 * the frame was not checked / has incorrect checksum / 2394 * does not have checksum (IPv6). 2395 * 2396 * NB: if DF bit is not set then frame will not be checked. 2397 */ 2398 if (rxdw3 & R92S_RXDW3_IPCHKRPT) { 2399 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2400 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2401 } 2402 2403 /* 2404 * This is independent of the above check. 2405 */ 2406 if (rxdw3 & R92S_RXDW3_TCPCHKRPT) { 2407 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 2408 m->m_pkthdr.csum_flags |= CSUM_PSEUDO_HDR; 2409 m->m_pkthdr.csum_data = 0xffff; 2410 } 2411 } 2412 2413 /* RX flags */ 2414 2415 /* Set channel flags for input path */ 2416 bzero(&rxs, sizeof(rxs)); 2417 2418 /* normal RSSI */ 2419 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2420 rxs.c_rssi = rssi; 2421 rxs.c_nf = -96; 2422 2423 /* Rate */ 2424 if (rate < 12) { 2425 rxs.c_rate = ridx2rate[rate]; 2426 if (RSU_RATE_IS_CCK(rate)) 2427 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2428 else 2429 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2430 } else { 2431 rxs.c_rate = IEEE80211_RATE_MCS | (rate - 12); 2432 rxs.c_pktflags |= IEEE80211_RX_F_HT; 2433 } 2434 2435 if (ieee80211_radiotap_active(ic)) { 2436 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 2437 2438 /* Map HW rate index to 802.11 rate. */ 2439 tap->wr_flags = 0; /* TODO */ 2440 tap->wr_tsft = rsu_get_tsf_high(sc); 2441 if (le32toh(stat->tsf_low) > rsu_get_tsf_low(sc)) 2442 tap->wr_tsft--; 2443 tap->wr_tsft = (uint64_t)htole32(tap->wr_tsft) << 32; 2444 tap->wr_tsft += stat->tsf_low; 2445 2446 tap->wr_rate = rxs.c_rate; 2447 tap->wr_dbm_antsignal = rssi; 2448 }; 2449 2450 (void) ieee80211_add_rx_params(m, &rxs); 2451 2452 /* Drop descriptor. */ 2453 m_adj(m, sizeof(*stat) + infosz); 2454 wh = mtod(m, struct ieee80211_frame_min *); 2455 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 2456 cipher != R92S_KEY_ALGO_NONE) { 2457 m->m_flags |= M_WEP; 2458 } 2459 2460 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2461 "%s: Rx frame len %d, rate %d, infosz %d\n", 2462 __func__, m->m_len, rate, infosz); 2463 2464 if (m->m_len >= sizeof(*wh)) 2465 return (ieee80211_find_rxnode(ic, wh)); 2466 2467 return (NULL); 2468 } 2469 2470 static struct mbuf * 2471 rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 2472 { 2473 struct r92s_rx_stat *stat; 2474 uint32_t rxdw0; 2475 int totlen, pktlen, infosz, npkts; 2476 struct mbuf *m, *m0 = NULL, *prevm = NULL; 2477 2478 /* 2479 * don't pass packets to the ieee80211 framework if the driver isn't 2480 * RUNNING. 2481 */ 2482 if (!sc->sc_running) 2483 return (NULL); 2484 2485 /* Get the number of encapsulated frames. */ 2486 stat = (struct r92s_rx_stat *)buf; 2487 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 2488 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2489 "%s: Rx %d frames in one chunk\n", __func__, npkts); 2490 2491 /* Process all of them. */ 2492 while (npkts-- > 0) { 2493 if (__predict_false(len < sizeof(*stat))) 2494 break; 2495 stat = (struct r92s_rx_stat *)buf; 2496 rxdw0 = le32toh(stat->rxdw0); 2497 2498 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2499 if (__predict_false(pktlen == 0)) 2500 break; 2501 2502 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2503 2504 /* Make sure everything fits in xfer. */ 2505 totlen = sizeof(*stat) + infosz + pktlen; 2506 if (__predict_false(totlen > len)) 2507 break; 2508 2509 /* Process 802.11 frame. */ 2510 m = rsu_rx_copy_to_mbuf(sc, stat, totlen); 2511 if (m0 == NULL) 2512 m0 = m; 2513 if (prevm == NULL) 2514 prevm = m; 2515 else { 2516 prevm->m_next = m; 2517 prevm = m; 2518 } 2519 /* Next chunk is 128-byte aligned. */ 2520 totlen = (totlen + 127) & ~127; 2521 buf += totlen; 2522 len -= totlen; 2523 } 2524 2525 return (m0); 2526 } 2527 2528 static struct mbuf * 2529 rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data) 2530 { 2531 struct rsu_softc *sc = data->sc; 2532 struct ieee80211com *ic = &sc->sc_ic; 2533 struct r92s_rx_stat *stat; 2534 int len; 2535 2536 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 2537 2538 if (__predict_false(len < sizeof(*stat))) { 2539 RSU_DPRINTF(sc, RSU_DEBUG_RX, "xfer too short %d\n", len); 2540 counter_u64_add(ic->ic_ierrors, 1); 2541 return (NULL); 2542 } 2543 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 2544 stat = (struct r92s_rx_stat *)data->buf; 2545 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 2546 rsu_rx_multi_event(sc, data->buf, len); 2547 /* No packets to process. */ 2548 return (NULL); 2549 } else 2550 return (rsu_rx_multi_frame(sc, data->buf, len)); 2551 } 2552 2553 static void 2554 rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 2555 { 2556 struct epoch_tracker et; 2557 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2558 struct ieee80211com *ic = &sc->sc_ic; 2559 struct ieee80211_node *ni; 2560 struct mbuf *m = NULL, *next; 2561 struct rsu_data *data; 2562 2563 RSU_ASSERT_LOCKED(sc); 2564 2565 switch (USB_GET_STATE(xfer)) { 2566 case USB_ST_TRANSFERRED: 2567 data = STAILQ_FIRST(&sc->sc_rx_active); 2568 if (data == NULL) 2569 goto tr_setup; 2570 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2571 m = rsu_rxeof(xfer, data); 2572 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2573 /* FALLTHROUGH */ 2574 case USB_ST_SETUP: 2575 tr_setup: 2576 data = STAILQ_FIRST(&sc->sc_rx_inactive); 2577 if (data == NULL) { 2578 KASSERT(m == NULL, ("mbuf isn't NULL")); 2579 return; 2580 } 2581 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 2582 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 2583 usbd_xfer_set_frame_data(xfer, 0, data->buf, 2584 usbd_xfer_max_len(xfer)); 2585 usbd_transfer_submit(xfer); 2586 /* 2587 * To avoid LOR we should unlock our private mutex here to call 2588 * ieee80211_input() because here is at the end of a USB 2589 * callback and safe to unlock. 2590 */ 2591 NET_EPOCH_ENTER(et); 2592 while (m != NULL) { 2593 next = m->m_next; 2594 m->m_next = NULL; 2595 2596 ni = rsu_rx_frame(sc, m); 2597 RSU_UNLOCK(sc); 2598 2599 if (ni != NULL) { 2600 if (ni->ni_flags & IEEE80211_NODE_HT) 2601 m->m_flags |= M_AMPDU; 2602 (void)ieee80211_input_mimo(ni, m); 2603 ieee80211_free_node(ni); 2604 } else 2605 (void)ieee80211_input_mimo_all(ic, m); 2606 2607 RSU_LOCK(sc); 2608 m = next; 2609 } 2610 NET_EPOCH_EXIT(et); 2611 break; 2612 default: 2613 /* needs it to the inactive queue due to a error. */ 2614 data = STAILQ_FIRST(&sc->sc_rx_active); 2615 if (data != NULL) { 2616 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2617 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2618 } 2619 if (error != USB_ERR_CANCELLED) { 2620 usbd_xfer_set_stall(xfer); 2621 counter_u64_add(ic->ic_ierrors, 1); 2622 goto tr_setup; 2623 } 2624 break; 2625 } 2626 2627 } 2628 2629 static void 2630 rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 2631 { 2632 #ifdef USB_DEBUG 2633 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2634 #endif 2635 2636 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 2637 __func__, 2638 data); 2639 2640 if (data->m) { 2641 /* XXX status? */ 2642 ieee80211_tx_complete(data->ni, data->m, 0); 2643 data->m = NULL; 2644 data->ni = NULL; 2645 } 2646 } 2647 2648 static void 2649 rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 2650 uint8_t which) 2651 { 2652 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2653 struct ieee80211com *ic = &sc->sc_ic; 2654 struct rsu_data *data; 2655 2656 RSU_ASSERT_LOCKED(sc); 2657 2658 switch (USB_GET_STATE(xfer)) { 2659 case USB_ST_TRANSFERRED: 2660 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2661 if (data == NULL) 2662 goto tr_setup; 2663 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 2664 __func__, data); 2665 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2666 rsu_txeof(xfer, data); 2667 rsu_freebuf(sc, data); 2668 /* FALLTHROUGH */ 2669 case USB_ST_SETUP: 2670 tr_setup: 2671 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 2672 if (data == NULL) { 2673 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2674 "%s: empty pending queue sc %p\n", __func__, sc); 2675 return; 2676 } 2677 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 2678 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 2679 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 2680 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2681 "%s: submitting transfer %p\n", 2682 __func__, 2683 data); 2684 usbd_transfer_submit(xfer); 2685 break; 2686 default: 2687 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2688 if (data != NULL) { 2689 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2690 rsu_txeof(xfer, data); 2691 rsu_freebuf(sc, data); 2692 } 2693 counter_u64_add(ic->ic_oerrors, 1); 2694 2695 if (error != USB_ERR_CANCELLED) { 2696 usbd_xfer_set_stall(xfer); 2697 goto tr_setup; 2698 } 2699 break; 2700 } 2701 2702 /* 2703 * XXX TODO: if the queue is low, flush out FF TX frames. 2704 * Remember to unlock the driver for now; net80211 doesn't 2705 * defer it for us. 2706 */ 2707 } 2708 2709 static void 2710 rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 2711 { 2712 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2713 2714 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 2715 2716 /* This kicks the TX taskqueue */ 2717 rsu_start(sc); 2718 } 2719 2720 static void 2721 rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 2722 { 2723 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2724 2725 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 2726 2727 /* This kicks the TX taskqueue */ 2728 rsu_start(sc); 2729 } 2730 2731 static void 2732 rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2733 { 2734 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2735 2736 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2737 2738 /* This kicks the TX taskqueue */ 2739 rsu_start(sc); 2740 } 2741 2742 /* 2743 * Transmit the given frame. 2744 * 2745 * This doesn't free the node or mbuf upon failure. 2746 */ 2747 static int 2748 rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2749 struct mbuf *m0, struct rsu_data *data) 2750 { 2751 const struct ieee80211_txparam *tp = ni->ni_txparms; 2752 struct ieee80211vap *vap = ni->ni_vap; 2753 struct ieee80211_frame *wh; 2754 struct ieee80211_key *k = NULL; 2755 struct r92s_tx_desc *txd; 2756 uint8_t rate, ridx, type, cipher, qos; 2757 int prio = 0; 2758 uint8_t which; 2759 int hasqos; 2760 int ismcast; 2761 int xferlen; 2762 int qid; 2763 2764 RSU_ASSERT_LOCKED(sc); 2765 2766 wh = mtod(m0, struct ieee80211_frame *); 2767 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2768 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 2769 2770 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2771 __func__, data, m0); 2772 2773 /* Choose a TX rate index. */ 2774 if (type == IEEE80211_FC0_TYPE_MGT || 2775 type == IEEE80211_FC0_TYPE_CTL || 2776 (m0->m_flags & M_EAPOL) != 0) 2777 rate = tp->mgmtrate; 2778 else if (ismcast) 2779 rate = tp->mcastrate; 2780 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 2781 rate = tp->ucastrate; 2782 else 2783 rate = 0; 2784 2785 if (rate != 0) 2786 ridx = rate2ridx(rate); 2787 2788 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2789 k = ieee80211_crypto_encap(ni, m0); 2790 if (k == NULL) { 2791 device_printf(sc->sc_dev, 2792 "ieee80211_crypto_encap returns NULL.\n"); 2793 /* XXX we don't expect the fragmented frames */ 2794 return (ENOBUFS); 2795 } 2796 wh = mtod(m0, struct ieee80211_frame *); 2797 } 2798 /* If we have QoS then use it */ 2799 /* XXX TODO: mbuf WME/PRI versus TID? */ 2800 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2801 /* Has QoS */ 2802 prio = M_WME_GETAC(m0); 2803 which = rsu_wme_ac_xfer_map[prio]; 2804 hasqos = 1; 2805 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 2806 } else { 2807 /* Non-QoS TID */ 2808 /* XXX TODO: tid=0 for non-qos TID? */ 2809 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2810 hasqos = 0; 2811 prio = 0; 2812 qos = 0; 2813 } 2814 2815 qid = rsu_ac2qid[prio]; 2816 #if 0 2817 switch (type) { 2818 case IEEE80211_FC0_TYPE_CTL: 2819 case IEEE80211_FC0_TYPE_MGT: 2820 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2821 break; 2822 default: 2823 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2824 break; 2825 } 2826 hasqos = 0; 2827 #endif 2828 2829 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2830 __func__, 2831 prio, 2832 which, 2833 hasqos); 2834 2835 /* Fill Tx descriptor. */ 2836 txd = (struct r92s_tx_desc *)data->buf; 2837 memset(txd, 0, sizeof(*txd)); 2838 2839 txd->txdw0 |= htole32( 2840 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2841 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2842 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2843 2844 txd->txdw1 |= htole32( 2845 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2846 if (!hasqos) 2847 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2848 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWENCRYPT)) { 2849 switch (k->wk_cipher->ic_cipher) { 2850 case IEEE80211_CIPHER_WEP: 2851 cipher = R92S_TXDW1_CIPHER_WEP; 2852 break; 2853 case IEEE80211_CIPHER_TKIP: 2854 cipher = R92S_TXDW1_CIPHER_TKIP; 2855 break; 2856 case IEEE80211_CIPHER_AES_CCM: 2857 cipher = R92S_TXDW1_CIPHER_AES; 2858 break; 2859 default: 2860 cipher = R92S_TXDW1_CIPHER_NONE; 2861 } 2862 txd->txdw1 |= htole32( 2863 SM(R92S_TXDW1_CIPHER, cipher) | 2864 SM(R92S_TXDW1_KEYIDX, k->wk_keyix)); 2865 } 2866 /* XXX todo: set AGGEN bit if appropriate? */ 2867 txd->txdw2 |= htole32(R92S_TXDW2_BK); 2868 if (ismcast) 2869 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2870 2871 if (!ismcast && (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 2872 IEEE80211_QOS_ACKPOLICY_NOACK)) { 2873 txd->txdw2 |= htole32(R92S_TXDW2_RTY_LMT_ENA); 2874 txd->txdw2 |= htole32(SM(R92S_TXDW2_RTY_LMT, tp->maxretry)); 2875 } 2876 2877 /* Force mgmt / mcast / ucast rate if needed. */ 2878 if (rate != 0) { 2879 /* Data rate fallback limit (max). */ 2880 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE_FB_LMT, 0x1f)); 2881 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE, ridx)); 2882 txd->txdw4 |= htole32(R92S_TXDW4_DRVRATE); 2883 } 2884 2885 /* 2886 * Firmware will use and increment the sequence number for the 2887 * specified priority. 2888 */ 2889 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2890 2891 if (ieee80211_radiotap_active_vap(vap)) { 2892 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2893 2894 tap->wt_flags = 0; 2895 ieee80211_radiotap_tx(vap, m0); 2896 } 2897 2898 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2899 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 2900 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2901 2902 data->buflen = xferlen; 2903 data->ni = ni; 2904 data->m = m0; 2905 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2906 2907 /* start transfer, if any */ 2908 usbd_transfer_start(sc->sc_xfer[which]); 2909 return (0); 2910 } 2911 2912 static int 2913 rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2914 { 2915 struct rsu_softc *sc = ic->ic_softc; 2916 int error; 2917 2918 RSU_LOCK(sc); 2919 if (!sc->sc_running) { 2920 RSU_UNLOCK(sc); 2921 return (ENXIO); 2922 } 2923 2924 /* 2925 * XXX TODO: ensure that we treat 'm' as a list of frames 2926 * to transmit! 2927 */ 2928 error = mbufq_enqueue(&sc->sc_snd, m); 2929 if (error) { 2930 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2931 "%s: mbufq_enable: failed (%d)\n", 2932 __func__, 2933 error); 2934 RSU_UNLOCK(sc); 2935 return (error); 2936 } 2937 RSU_UNLOCK(sc); 2938 2939 /* This kicks the TX taskqueue */ 2940 rsu_start(sc); 2941 2942 return (0); 2943 } 2944 2945 static void 2946 rsu_drain_mbufq(struct rsu_softc *sc) 2947 { 2948 struct mbuf *m; 2949 struct ieee80211_node *ni; 2950 2951 RSU_ASSERT_LOCKED(sc); 2952 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2953 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2954 m->m_pkthdr.rcvif = NULL; 2955 ieee80211_free_node(ni); 2956 m_freem(m); 2957 } 2958 } 2959 2960 static void 2961 _rsu_start(struct rsu_softc *sc) 2962 { 2963 struct ieee80211_node *ni; 2964 struct rsu_data *bf; 2965 struct mbuf *m; 2966 2967 RSU_ASSERT_LOCKED(sc); 2968 2969 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2970 bf = rsu_getbuf(sc); 2971 if (bf == NULL) { 2972 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2973 "%s: failed to get buffer\n", __func__); 2974 mbufq_prepend(&sc->sc_snd, m); 2975 break; 2976 } 2977 2978 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2979 m->m_pkthdr.rcvif = NULL; 2980 2981 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2982 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2983 "%s: failed to transmit\n", __func__); 2984 if_inc_counter(ni->ni_vap->iv_ifp, 2985 IFCOUNTER_OERRORS, 1); 2986 rsu_freebuf(sc, bf); 2987 ieee80211_free_node(ni); 2988 m_freem(m); 2989 break; 2990 } 2991 } 2992 } 2993 2994 static void 2995 rsu_start(struct rsu_softc *sc) 2996 { 2997 2998 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 2999 } 3000 3001 static int 3002 rsu_ioctl_net(struct ieee80211com *ic, u_long cmd, void *data) 3003 { 3004 struct rsu_softc *sc = ic->ic_softc; 3005 struct ifreq *ifr = (struct ifreq *)data; 3006 int error; 3007 3008 error = 0; 3009 switch (cmd) { 3010 case SIOCSIFCAP: 3011 { 3012 struct ieee80211vap *vap; 3013 int rxmask; 3014 3015 rxmask = ifr->ifr_reqcap & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3016 3017 RSU_LOCK(sc); 3018 /* Both RXCSUM bits must be set (or unset). */ 3019 if (sc->sc_rx_checksum_enable && 3020 rxmask != (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { 3021 rxmask = 0; 3022 sc->sc_rx_checksum_enable = 0; 3023 rsu_rxfilter_set(sc, R92S_RCR_TCP_OFFLD_EN, 0); 3024 } else if (!sc->sc_rx_checksum_enable && rxmask != 0) { 3025 rxmask = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 3026 sc->sc_rx_checksum_enable = 1; 3027 rsu_rxfilter_set(sc, 0, R92S_RCR_TCP_OFFLD_EN); 3028 } else { 3029 /* Nothing to do. */ 3030 RSU_UNLOCK(sc); 3031 break; 3032 } 3033 RSU_UNLOCK(sc); 3034 3035 IEEE80211_LOCK(ic); /* XXX */ 3036 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 3037 if_t ifp = vap->iv_ifp; 3038 3039 if_setcapenablebit(ifp, 0, 3040 IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3041 if_setcapenablebit(ifp, rxmask, 0); 3042 } 3043 IEEE80211_UNLOCK(ic); 3044 break; 3045 } 3046 default: 3047 error = ENOTTY; /* for net80211 */ 3048 break; 3049 } 3050 3051 return (error); 3052 } 3053 3054 static void 3055 rsu_parent(struct ieee80211com *ic) 3056 { 3057 struct rsu_softc *sc = ic->ic_softc; 3058 3059 if (ic->ic_nrunning > 0) { 3060 if (rsu_init(sc) == 0) 3061 ieee80211_start_all(ic); 3062 else { 3063 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3064 if (vap != NULL) 3065 ieee80211_stop(vap); 3066 } 3067 } else 3068 rsu_stop(sc); 3069 } 3070 3071 /* 3072 * Power on sequence for A-cut adapters. 3073 */ 3074 static void 3075 rsu_power_on_acut(struct rsu_softc *sc) 3076 { 3077 uint32_t reg; 3078 3079 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3080 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3081 3082 /* Enable AFE macro block's bandgap and Mbias. */ 3083 rsu_write_1(sc, R92S_AFE_MISC, 3084 rsu_read_1(sc, R92S_AFE_MISC) | 3085 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 3086 /* Enable LDOA15 block. */ 3087 rsu_write_1(sc, R92S_LDOA15_CTRL, 3088 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3089 3090 rsu_write_1(sc, R92S_SPS1_CTRL, 3091 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 3092 rsu_ms_delay(sc, 2000); 3093 /* Enable switch regulator block. */ 3094 rsu_write_1(sc, R92S_SPS1_CTRL, 3095 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 3096 3097 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 3098 3099 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3100 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3101 3102 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3103 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3104 3105 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3106 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 3107 3108 /* Enable AFE clock. */ 3109 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3110 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3111 /* Enable AFE PLL macro block. */ 3112 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 3113 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 3114 /* Attach AFE PLL to MACTOP/BB. */ 3115 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3116 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3117 3118 /* Switch to 40MHz clock instead of 80MHz. */ 3119 rsu_write_2(sc, R92S_SYS_CLKR, 3120 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 3121 3122 /* Enable MAC clock. */ 3123 rsu_write_2(sc, R92S_SYS_CLKR, 3124 rsu_read_2(sc, R92S_SYS_CLKR) | 3125 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3126 3127 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3128 3129 /* Enable digital core and IOREG R/W. */ 3130 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3131 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3132 3133 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3134 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3135 3136 /* Switch the control path to firmware. */ 3137 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3138 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3139 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3140 3141 rsu_write_2(sc, R92S_CR, 0x37fc); 3142 3143 /* Fix USB RX FIFO issue. */ 3144 rsu_write_1(sc, 0xfe5c, 3145 rsu_read_1(sc, 0xfe5c) | 0x80); 3146 rsu_write_1(sc, 0x00ab, 3147 rsu_read_1(sc, 0x00ab) | 0xc0); 3148 3149 rsu_write_1(sc, R92S_SYS_CLKR, 3150 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3151 } 3152 3153 /* 3154 * Power on sequence for B-cut and C-cut adapters. 3155 */ 3156 static void 3157 rsu_power_on_bcut(struct rsu_softc *sc) 3158 { 3159 uint32_t reg; 3160 int ntries; 3161 3162 /* Prevent eFuse leakage. */ 3163 rsu_write_1(sc, 0x37, 0xb0); 3164 rsu_ms_delay(sc, 10); 3165 rsu_write_1(sc, 0x37, 0x30); 3166 3167 /* Switch the control path to hardware. */ 3168 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3169 if (reg & R92S_FWHW_SEL) { 3170 rsu_write_2(sc, R92S_SYS_CLKR, 3171 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 3172 } 3173 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3174 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 3175 rsu_ms_delay(sc, 1); 3176 3177 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3178 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3179 3180 reg = rsu_read_1(sc, R92S_AFE_MISC); 3181 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 3182 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 3183 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 3184 3185 /* Enable PLL. */ 3186 rsu_write_1(sc, R92S_LDOA15_CTRL, 3187 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3188 3189 rsu_write_1(sc, R92S_LDOV12D_CTRL, 3190 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 3191 3192 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3193 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3194 3195 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3196 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3197 3198 /* Support 64KB IMEM. */ 3199 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3200 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 3201 3202 /* Enable AFE clock. */ 3203 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3204 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3205 /* Enable AFE PLL macro block. */ 3206 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 3207 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3208 rsu_ms_delay(sc, 1); 3209 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 3210 rsu_ms_delay(sc, 1); 3211 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3212 rsu_ms_delay(sc, 1); 3213 3214 /* Attach AFE PLL to MACTOP/BB. */ 3215 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3216 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3217 3218 /* Switch to 40MHz clock. */ 3219 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 3220 /* Disable CPU clock and 80MHz SSC. */ 3221 rsu_write_1(sc, R92S_SYS_CLKR, 3222 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 3223 /* Enable MAC clock. */ 3224 rsu_write_2(sc, R92S_SYS_CLKR, 3225 rsu_read_2(sc, R92S_SYS_CLKR) | 3226 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3227 3228 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3229 3230 /* Enable digital core and IOREG R/W. */ 3231 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3232 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3233 3234 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3235 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3236 3237 /* Switch the control path to firmware. */ 3238 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3239 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3240 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3241 3242 rsu_write_2(sc, R92S_CR, 0x37fc); 3243 3244 /* Fix USB RX FIFO issue. */ 3245 rsu_write_1(sc, 0xfe5c, 3246 rsu_read_1(sc, 0xfe5c) | 0x80); 3247 3248 rsu_write_1(sc, R92S_SYS_CLKR, 3249 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3250 3251 rsu_write_1(sc, 0xfe1c, 0x80); 3252 3253 /* Make sure TxDMA is ready to download firmware. */ 3254 for (ntries = 0; ntries < 20; ntries++) { 3255 reg = rsu_read_1(sc, R92S_TCR); 3256 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 3257 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 3258 break; 3259 rsu_ms_delay(sc, 1); 3260 } 3261 if (ntries == 20) { 3262 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 3263 "%s: TxDMA is not ready\n", 3264 __func__); 3265 /* Reset TxDMA. */ 3266 reg = rsu_read_1(sc, R92S_CR); 3267 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 3268 rsu_ms_delay(sc, 1); 3269 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 3270 } 3271 } 3272 3273 static void 3274 rsu_power_off(struct rsu_softc *sc) 3275 { 3276 /* Turn RF off. */ 3277 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 3278 rsu_ms_delay(sc, 5); 3279 3280 /* Turn MAC off. */ 3281 /* Switch control path. */ 3282 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 3283 /* Reset MACTOP. */ 3284 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 3285 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 3286 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 3287 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 3288 3289 /* Disable AFE PLL. */ 3290 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 3291 /* Disable A15V. */ 3292 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 3293 /* Disable eFuse 1.2V. */ 3294 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 3295 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 3296 /* Enable AFE macro block's bandgap and Mbias. */ 3297 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 3298 /* Disable 1.6V LDO. */ 3299 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 3300 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 3301 3302 /* Firmware - tell it to switch things off */ 3303 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 3304 } 3305 3306 static int 3307 rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 3308 { 3309 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 3310 struct rsu_data *data; 3311 struct r92s_tx_desc *txd; 3312 int mlen; 3313 3314 while (len > 0) { 3315 data = rsu_getbuf(sc); 3316 if (data == NULL) 3317 return (ENOMEM); 3318 txd = (struct r92s_tx_desc *)data->buf; 3319 memset(txd, 0, sizeof(*txd)); 3320 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 3321 /* Last chunk. */ 3322 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 3323 mlen = len; 3324 } else 3325 mlen = RSU_TXBUFSZ - sizeof(*txd); 3326 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 3327 memcpy(&txd[1], buf, mlen); 3328 data->buflen = sizeof(*txd) + mlen; 3329 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 3330 "%s: starting transfer %p\n", 3331 __func__, data); 3332 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 3333 buf += mlen; 3334 len -= mlen; 3335 } 3336 usbd_transfer_start(sc->sc_xfer[which]); 3337 return (0); 3338 } 3339 3340 CTASSERT(sizeof(size_t) >= sizeof(uint32_t)); 3341 3342 static int 3343 rsu_load_firmware(struct rsu_softc *sc) 3344 { 3345 const struct r92s_fw_hdr *hdr; 3346 struct r92s_fw_priv dmem; 3347 struct ieee80211com *ic = &sc->sc_ic; 3348 const uint8_t *imem, *emem; 3349 uint32_t imemsz, ememsz; 3350 const struct firmware *fw; 3351 size_t size; 3352 uint32_t reg; 3353 int ntries, error; 3354 3355 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 3356 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 3357 "%s: Firmware already loaded\n", 3358 __func__); 3359 return (0); 3360 } 3361 3362 RSU_UNLOCK(sc); 3363 /* Read firmware image from the filesystem. */ 3364 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 3365 device_printf(sc->sc_dev, 3366 "%s: failed load firmware of file rsu-rtl8712fw\n", 3367 __func__); 3368 RSU_LOCK(sc); 3369 return (ENXIO); 3370 } 3371 RSU_LOCK(sc); 3372 size = fw->datasize; 3373 if (size < sizeof(*hdr)) { 3374 device_printf(sc->sc_dev, "firmware too short\n"); 3375 error = EINVAL; 3376 goto fail; 3377 } 3378 hdr = (const struct r92s_fw_hdr *)fw->data; 3379 if (hdr->signature != htole16(0x8712) && 3380 hdr->signature != htole16(0x8192)) { 3381 device_printf(sc->sc_dev, 3382 "invalid firmware signature 0x%x\n", 3383 le16toh(hdr->signature)); 3384 error = EINVAL; 3385 goto fail; 3386 } 3387 RSU_DPRINTF(sc, RSU_DEBUG_FW, "FW V%d %02x-%02x %02x:%02x\n", 3388 le16toh(hdr->version), hdr->month, hdr->day, hdr->hour, 3389 hdr->minute); 3390 3391 /* Make sure that driver and firmware are in sync. */ 3392 if (hdr->privsz != htole32(sizeof(dmem))) { 3393 device_printf(sc->sc_dev, "unsupported firmware image\n"); 3394 error = EINVAL; 3395 goto fail; 3396 } 3397 /* Get FW sections sizes. */ 3398 imemsz = le32toh(hdr->imemsz); 3399 ememsz = le32toh(hdr->sramsz); 3400 /* Check that all FW sections fit in image. */ 3401 if (imemsz > (size_t)(size - sizeof(*hdr)) || 3402 ememsz > (size_t)(size - sizeof(*hdr) - imemsz)) { 3403 device_printf(sc->sc_dev, "firmware too short\n"); 3404 error = EINVAL; 3405 goto fail; 3406 } 3407 imem = (const uint8_t *)&hdr[1]; 3408 emem = imem + imemsz; 3409 3410 /* Load IMEM section. */ 3411 error = rsu_fw_loadsection(sc, imem, imemsz); 3412 if (error != 0) { 3413 device_printf(sc->sc_dev, 3414 "could not load firmware section %s\n", "IMEM"); 3415 goto fail; 3416 } 3417 /* Wait for load to complete. */ 3418 for (ntries = 0; ntries != 50; ntries++) { 3419 rsu_ms_delay(sc, 10); 3420 reg = rsu_read_1(sc, R92S_TCR); 3421 if (reg & R92S_TCR_IMEM_CODE_DONE) 3422 break; 3423 } 3424 if (ntries == 50) { 3425 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 3426 error = ETIMEDOUT; 3427 goto fail; 3428 } 3429 /* Load EMEM section. */ 3430 error = rsu_fw_loadsection(sc, emem, ememsz); 3431 if (error != 0) { 3432 device_printf(sc->sc_dev, 3433 "could not load firmware section %s\n", "EMEM"); 3434 goto fail; 3435 } 3436 /* Wait for load to complete. */ 3437 for (ntries = 0; ntries != 50; ntries++) { 3438 rsu_ms_delay(sc, 10); 3439 reg = rsu_read_2(sc, R92S_TCR); 3440 if (reg & R92S_TCR_EMEM_CODE_DONE) 3441 break; 3442 } 3443 if (ntries == 50) { 3444 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 3445 error = ETIMEDOUT; 3446 goto fail; 3447 } 3448 /* Enable CPU. */ 3449 rsu_write_1(sc, R92S_SYS_CLKR, 3450 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 3451 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 3452 device_printf(sc->sc_dev, "could not enable system clock\n"); 3453 error = EIO; 3454 goto fail; 3455 } 3456 rsu_write_2(sc, R92S_SYS_FUNC_EN, 3457 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 3458 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 3459 device_printf(sc->sc_dev, 3460 "could not enable microcontroller\n"); 3461 error = EIO; 3462 goto fail; 3463 } 3464 /* Wait for CPU to initialize. */ 3465 for (ntries = 0; ntries < 100; ntries++) { 3466 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 3467 break; 3468 rsu_ms_delay(sc, 1); 3469 } 3470 if (ntries == 100) { 3471 device_printf(sc->sc_dev, 3472 "timeout waiting for microcontroller\n"); 3473 error = ETIMEDOUT; 3474 goto fail; 3475 } 3476 3477 /* Update DMEM section before loading. */ 3478 memset(&dmem, 0, sizeof(dmem)); 3479 dmem.hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 3480 dmem.nendpoints = sc->sc_nendpoints; 3481 dmem.chip_version = sc->cut; 3482 dmem.rf_config = sc->sc_rftype; 3483 dmem.vcs_type = R92S_VCS_TYPE_AUTO; 3484 dmem.vcs_mode = R92S_VCS_MODE_RTS_CTS; 3485 dmem.turbo_mode = 0; 3486 dmem.bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 3487 dmem.amsdu2ampdu_en = !! (sc->sc_ht); 3488 dmem.ampdu_en = !! (sc->sc_ht); 3489 dmem.agg_offload = !! (sc->sc_ht); 3490 dmem.qos_en = 1; 3491 dmem.ps_offload = 1; 3492 dmem.lowpower_mode = 1; /* XXX TODO: configurable? */ 3493 /* Load DMEM section. */ 3494 error = rsu_fw_loadsection(sc, (uint8_t *)&dmem, sizeof(dmem)); 3495 if (error != 0) { 3496 device_printf(sc->sc_dev, 3497 "could not load firmware section %s\n", "DMEM"); 3498 goto fail; 3499 } 3500 /* Wait for load to complete. */ 3501 for (ntries = 0; ntries < 100; ntries++) { 3502 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 3503 break; 3504 rsu_ms_delay(sc, 1); 3505 } 3506 if (ntries == 100) { 3507 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 3508 "DMEM"); 3509 error = ETIMEDOUT; 3510 goto fail; 3511 } 3512 /* Wait for firmware readiness. */ 3513 for (ntries = 0; ntries < 60; ntries++) { 3514 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 3515 break; 3516 rsu_ms_delay(sc, 1); 3517 } 3518 if (ntries == 60) { 3519 device_printf(sc->sc_dev, 3520 "timeout waiting for firmware readiness\n"); 3521 error = ETIMEDOUT; 3522 goto fail; 3523 } 3524 fail: 3525 firmware_put(fw, FIRMWARE_UNLOAD); 3526 return (error); 3527 } 3528 3529 static int 3530 rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3531 const struct ieee80211_bpf_params *params) 3532 { 3533 struct ieee80211com *ic = ni->ni_ic; 3534 struct rsu_softc *sc = ic->ic_softc; 3535 struct rsu_data *bf; 3536 3537 /* prevent management frames from being sent if we're not ready */ 3538 if (!sc->sc_running) { 3539 m_freem(m); 3540 return (ENETDOWN); 3541 } 3542 RSU_LOCK(sc); 3543 bf = rsu_getbuf(sc); 3544 if (bf == NULL) { 3545 m_freem(m); 3546 RSU_UNLOCK(sc); 3547 return (ENOBUFS); 3548 } 3549 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3550 m_freem(m); 3551 rsu_freebuf(sc, bf); 3552 RSU_UNLOCK(sc); 3553 return (EIO); 3554 } 3555 RSU_UNLOCK(sc); 3556 3557 return (0); 3558 } 3559 3560 static void 3561 rsu_rxfilter_init(struct rsu_softc *sc) 3562 { 3563 uint32_t reg; 3564 3565 RSU_ASSERT_LOCKED(sc); 3566 3567 /* Setup multicast filter. */ 3568 rsu_set_multi(sc); 3569 3570 /* Adjust Rx filter. */ 3571 reg = rsu_read_4(sc, R92S_RCR); 3572 reg &= ~R92S_RCR_AICV; 3573 reg |= R92S_RCR_APP_PHYSTS; 3574 if (sc->sc_rx_checksum_enable) 3575 reg |= R92S_RCR_TCP_OFFLD_EN; 3576 rsu_write_4(sc, R92S_RCR, reg); 3577 3578 /* Update dynamic Rx filter parts. */ 3579 rsu_rxfilter_refresh(sc); 3580 } 3581 3582 static void 3583 rsu_rxfilter_set(struct rsu_softc *sc, uint32_t clear, uint32_t set) 3584 { 3585 /* NB: firmware can touch this register too. */ 3586 rsu_write_4(sc, R92S_RCR, 3587 (rsu_read_4(sc, R92S_RCR) & ~clear) | set); 3588 } 3589 3590 static void 3591 rsu_rxfilter_refresh(struct rsu_softc *sc) 3592 { 3593 struct ieee80211com *ic = &sc->sc_ic; 3594 uint32_t mask_all, mask_min; 3595 3596 RSU_ASSERT_LOCKED(sc); 3597 3598 /* NB: RCR_AMF / RXFLTMAP_MGT are used by firmware. */ 3599 mask_all = R92S_RCR_ACF | R92S_RCR_AAP; 3600 mask_min = R92S_RCR_APM; 3601 if (sc->sc_vap_is_running) 3602 mask_min |= R92S_RCR_CBSSID; 3603 else 3604 mask_all |= R92S_RCR_ADF; 3605 3606 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3607 uint16_t rxfltmap; 3608 if (sc->sc_vap_is_running) 3609 rxfltmap = 0; 3610 else 3611 rxfltmap = R92S_RXFLTMAP_MGT_DEF; 3612 rsu_write_2(sc, R92S_RXFLTMAP_MGT, rxfltmap); 3613 } 3614 3615 if (ic->ic_promisc == 0 && ic->ic_opmode != IEEE80211_M_MONITOR) 3616 rsu_rxfilter_set(sc, mask_all, mask_min); 3617 else 3618 rsu_rxfilter_set(sc, mask_min, mask_all); 3619 } 3620 3621 static int 3622 rsu_init(struct rsu_softc *sc) 3623 { 3624 struct ieee80211com *ic = &sc->sc_ic; 3625 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3626 uint8_t macaddr[IEEE80211_ADDR_LEN]; 3627 int error; 3628 int i; 3629 3630 RSU_LOCK(sc); 3631 3632 if (sc->sc_running) { 3633 RSU_UNLOCK(sc); 3634 return (0); 3635 } 3636 3637 /* Ensure the mbuf queue is drained */ 3638 rsu_drain_mbufq(sc); 3639 3640 /* Reset power management state. */ 3641 rsu_write_1(sc, R92S_USB_HRPWM, 0); 3642 3643 /* Power on adapter. */ 3644 if (sc->cut == 1) 3645 rsu_power_on_acut(sc); 3646 else 3647 rsu_power_on_bcut(sc); 3648 3649 /* Load firmware. */ 3650 error = rsu_load_firmware(sc); 3651 if (error != 0) 3652 goto fail; 3653 3654 rsu_write_4(sc, R92S_CR, 3655 rsu_read_4(sc, R92S_CR) & ~0xff000000); 3656 3657 /* Use 128 bytes pages. */ 3658 rsu_write_1(sc, 0x00b5, 3659 rsu_read_1(sc, 0x00b5) | 0x01); 3660 /* Enable USB Rx aggregation. */ 3661 rsu_write_1(sc, 0x00bd, 3662 rsu_read_1(sc, 0x00bd) | 0x80); 3663 /* Set USB Rx aggregation threshold. */ 3664 rsu_write_1(sc, 0x00d9, 0x01); 3665 /* Set USB Rx aggregation timeout (1.7ms/4). */ 3666 rsu_write_1(sc, 0xfe5b, 0x04); 3667 /* Fix USB Rx FIFO issue. */ 3668 rsu_write_1(sc, 0xfe5c, 3669 rsu_read_1(sc, 0xfe5c) | 0x80); 3670 3671 /* Set MAC address. */ 3672 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 3673 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 3674 3675 /* It really takes 1.5 seconds for the firmware to boot: */ 3676 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(2000)); 3677 3678 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 3679 __func__, 3680 ether_sprintf(macaddr)); 3681 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 3682 IEEE80211_ADDR_LEN); 3683 if (error != 0) { 3684 device_printf(sc->sc_dev, "could not set MAC address\n"); 3685 goto fail; 3686 } 3687 3688 /* Initialize Rx filter. */ 3689 rsu_rxfilter_init(sc); 3690 3691 /* Set PS mode fully active */ 3692 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 3693 if (error != 0) { 3694 device_printf(sc->sc_dev, "could not set PS mode\n"); 3695 goto fail; 3696 } 3697 3698 /* Install static keys (if any). */ 3699 error = rsu_reinit_static_keys(sc); 3700 if (error != 0) 3701 goto fail; 3702 3703 sc->sc_extra_scan = 0; 3704 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 3705 3706 /* We're ready to go. */ 3707 sc->sc_running = 1; 3708 RSU_UNLOCK(sc); 3709 3710 return (0); 3711 fail: 3712 /* Need to stop all failed transfers, if any */ 3713 for (i = 0; i != RSU_N_TRANSFER; i++) 3714 usbd_transfer_stop(sc->sc_xfer[i]); 3715 RSU_UNLOCK(sc); 3716 3717 return (error); 3718 } 3719 3720 static void 3721 rsu_stop(struct rsu_softc *sc) 3722 { 3723 int i; 3724 3725 RSU_LOCK(sc); 3726 if (!sc->sc_running) { 3727 RSU_UNLOCK(sc); 3728 return; 3729 } 3730 3731 sc->sc_running = 0; 3732 sc->sc_vap_is_running = 0; 3733 sc->sc_calibrating = 0; 3734 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 3735 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 3736 3737 /* Power off adapter. */ 3738 rsu_power_off(sc); 3739 3740 /* 3741 * CAM is not accessible after shutdown; 3742 * all entries are marked (by firmware?) as invalid. 3743 */ 3744 memset(sc->free_keys_bmap, 0, sizeof(sc->free_keys_bmap)); 3745 memset(sc->keys_bmap, 0, sizeof(sc->keys_bmap)); 3746 3747 for (i = 0; i < RSU_N_TRANSFER; i++) 3748 usbd_transfer_stop(sc->sc_xfer[i]); 3749 3750 /* Ensure the mbuf queue is drained */ 3751 rsu_drain_mbufq(sc); 3752 RSU_UNLOCK(sc); 3753 } 3754 3755 /* 3756 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 3757 * which breaks any kind of driver serialisation. 3758 */ 3759 static void 3760 rsu_ms_delay(struct rsu_softc *sc, int ms) 3761 { 3762 3763 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 3764 DELAY(ms * 1000); 3765 } 3766