1 /* $OpenBSD: if_rsu.c,v 1.17 2013/04/15 09:23:01 mglocker Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 #include <sys/cdefs.h> 19 __FBSDID("$FreeBSD$"); 20 21 /* 22 * Driver for Realtek RTL8188SU/RTL8191SU/RTL8192SU. 23 * 24 * TODO: 25 * o tx a-mpdu 26 * o hostap / ibss / mesh 27 * o power-save operation 28 */ 29 30 #include "opt_wlan.h" 31 32 #include <sys/param.h> 33 #include <sys/endian.h> 34 #include <sys/sockio.h> 35 #include <sys/malloc.h> 36 #include <sys/mbuf.h> 37 #include <sys/kernel.h> 38 #include <sys/socket.h> 39 #include <sys/systm.h> 40 #include <sys/conf.h> 41 #include <sys/bus.h> 42 #include <sys/rman.h> 43 #include <sys/firmware.h> 44 #include <sys/module.h> 45 46 #include <machine/bus.h> 47 #include <machine/resource.h> 48 49 #include <net/bpf.h> 50 #include <net/if.h> 51 #include <net/if_var.h> 52 #include <net/if_arp.h> 53 #include <net/if_dl.h> 54 #include <net/if_media.h> 55 #include <net/if_types.h> 56 57 #include <netinet/in.h> 58 #include <netinet/in_systm.h> 59 #include <netinet/in_var.h> 60 #include <netinet/if_ether.h> 61 #include <netinet/ip.h> 62 63 #include <net80211/ieee80211_var.h> 64 #include <net80211/ieee80211_regdomain.h> 65 #include <net80211/ieee80211_radiotap.h> 66 67 #include <dev/usb/usb.h> 68 #include <dev/usb/usbdi.h> 69 #include "usbdevs.h" 70 71 #include <dev/usb/wlan/if_rsureg.h> 72 73 #ifdef USB_DEBUG 74 static int rsu_debug = 0; 75 SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW, 0, "USB rsu"); 76 SYSCTL_INT(_hw_usb_rsu, OID_AUTO, debug, CTLFLAG_RWTUN, &rsu_debug, 0, 77 "Debug level"); 78 #define RSU_DPRINTF(_sc, _flg, ...) \ 79 do \ 80 if (((_flg) == (RSU_DEBUG_ANY)) || (rsu_debug & (_flg))) \ 81 device_printf((_sc)->sc_dev, __VA_ARGS__); \ 82 while (0) 83 #else 84 #define RSU_DPRINTF(_sc, _flg, ...) 85 #endif 86 87 static int rsu_enable_11n = 1; 88 TUNABLE_INT("hw.usb.rsu.enable_11n", &rsu_enable_11n); 89 90 #define RSU_DEBUG_ANY 0xffffffff 91 #define RSU_DEBUG_TX 0x00000001 92 #define RSU_DEBUG_RX 0x00000002 93 #define RSU_DEBUG_RESET 0x00000004 94 #define RSU_DEBUG_CALIB 0x00000008 95 #define RSU_DEBUG_STATE 0x00000010 96 #define RSU_DEBUG_SCAN 0x00000020 97 #define RSU_DEBUG_FWCMD 0x00000040 98 #define RSU_DEBUG_TXDONE 0x00000080 99 #define RSU_DEBUG_FW 0x00000100 100 #define RSU_DEBUG_FWDBG 0x00000200 101 #define RSU_DEBUG_AMPDU 0x00000400 102 #define RSU_DEBUG_KEY 0x00000800 103 #define RSU_DEBUG_USB 0x00001000 104 105 static const STRUCT_USB_HOST_ID rsu_devs[] = { 106 #define RSU_HT_NOT_SUPPORTED 0 107 #define RSU_HT_SUPPORTED 1 108 #define RSU_DEV_HT(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 109 RSU_HT_SUPPORTED) } 110 #define RSU_DEV(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 111 RSU_HT_NOT_SUPPORTED) } 112 RSU_DEV(ASUS, RTL8192SU), 113 RSU_DEV(AZUREWAVE, RTL8192SU_4), 114 RSU_DEV_HT(ACCTON, RTL8192SU), 115 RSU_DEV_HT(ASUS, USBN10), 116 RSU_DEV_HT(AZUREWAVE, RTL8192SU_1), 117 RSU_DEV_HT(AZUREWAVE, RTL8192SU_2), 118 RSU_DEV_HT(AZUREWAVE, RTL8192SU_3), 119 RSU_DEV_HT(AZUREWAVE, RTL8192SU_5), 120 RSU_DEV_HT(BELKIN, RTL8192SU_1), 121 RSU_DEV_HT(BELKIN, RTL8192SU_2), 122 RSU_DEV_HT(BELKIN, RTL8192SU_3), 123 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_1), 124 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_2), 125 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_3), 126 RSU_DEV_HT(COREGA, RTL8192SU), 127 RSU_DEV_HT(DLINK2, DWA131A1), 128 RSU_DEV_HT(DLINK2, RTL8192SU_1), 129 RSU_DEV_HT(DLINK2, RTL8192SU_2), 130 RSU_DEV_HT(EDIMAX, RTL8192SU_1), 131 RSU_DEV_HT(EDIMAX, RTL8192SU_2), 132 RSU_DEV_HT(EDIMAX, EW7622UMN), 133 RSU_DEV_HT(GUILLEMOT, HWGUN54), 134 RSU_DEV_HT(GUILLEMOT, HWNUM300), 135 RSU_DEV_HT(HAWKING, RTL8192SU_1), 136 RSU_DEV_HT(HAWKING, RTL8192SU_2), 137 RSU_DEV_HT(PLANEX2, GWUSNANO), 138 RSU_DEV_HT(REALTEK, RTL8171), 139 RSU_DEV_HT(REALTEK, RTL8172), 140 RSU_DEV_HT(REALTEK, RTL8173), 141 RSU_DEV_HT(REALTEK, RTL8174), 142 RSU_DEV_HT(REALTEK, RTL8192SU), 143 RSU_DEV_HT(REALTEK, RTL8712), 144 RSU_DEV_HT(REALTEK, RTL8713), 145 RSU_DEV_HT(SENAO, RTL8192SU_1), 146 RSU_DEV_HT(SENAO, RTL8192SU_2), 147 RSU_DEV_HT(SITECOMEU, WL349V1), 148 RSU_DEV_HT(SITECOMEU, WL353), 149 RSU_DEV_HT(SWEEX2, LW154), 150 RSU_DEV_HT(TRENDNET, TEW646UBH), 151 #undef RSU_DEV_HT 152 #undef RSU_DEV 153 }; 154 155 static device_probe_t rsu_match; 156 static device_attach_t rsu_attach; 157 static device_detach_t rsu_detach; 158 static usb_callback_t rsu_bulk_tx_callback_be_bk; 159 static usb_callback_t rsu_bulk_tx_callback_vi_vo; 160 static usb_callback_t rsu_bulk_tx_callback_h2c; 161 static usb_callback_t rsu_bulk_rx_callback; 162 static usb_error_t rsu_do_request(struct rsu_softc *, 163 struct usb_device_request *, void *); 164 static struct ieee80211vap * 165 rsu_vap_create(struct ieee80211com *, const char name[], 166 int, enum ieee80211_opmode, int, const uint8_t bssid[], 167 const uint8_t mac[]); 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 static devclass_t rsu_devclass; 277 278 DRIVER_MODULE(rsu, uhub, rsu_driver, rsu_devclass, NULL, 0); 279 MODULE_DEPEND(rsu, wlan, 1, 1, 1); 280 MODULE_DEPEND(rsu, usb, 1, 1, 1); 281 MODULE_DEPEND(rsu, firmware, 1, 1, 1); 282 MODULE_VERSION(rsu, 1); 283 USB_PNP_HOST_INFO(rsu_devs); 284 285 static const uint8_t rsu_chan_2ghz[] = 286 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }; 287 288 static uint8_t rsu_wme_ac_xfer_map[4] = { 289 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 290 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 291 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 292 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 293 }; 294 295 /* XXX hard-coded */ 296 #define RSU_H2C_ENDPOINT 3 297 298 static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 299 [RSU_BULK_RX] = { 300 .type = UE_BULK, 301 .endpoint = UE_ADDR_ANY, 302 .direction = UE_DIR_IN, 303 .bufsize = RSU_RXBUFSZ, 304 .flags = { 305 .pipe_bof = 1, 306 .short_xfer_ok = 1 307 }, 308 .callback = rsu_bulk_rx_callback 309 }, 310 [RSU_BULK_TX_BE_BK] = { 311 .type = UE_BULK, 312 .endpoint = 0x06, 313 .direction = UE_DIR_OUT, 314 .bufsize = RSU_TXBUFSZ, 315 .flags = { 316 .ext_buffer = 1, 317 .pipe_bof = 1, 318 .force_short_xfer = 1 319 }, 320 .callback = rsu_bulk_tx_callback_be_bk, 321 .timeout = RSU_TX_TIMEOUT 322 }, 323 [RSU_BULK_TX_VI_VO] = { 324 .type = UE_BULK, 325 .endpoint = 0x04, 326 .direction = UE_DIR_OUT, 327 .bufsize = RSU_TXBUFSZ, 328 .flags = { 329 .ext_buffer = 1, 330 .pipe_bof = 1, 331 .force_short_xfer = 1 332 }, 333 .callback = rsu_bulk_tx_callback_vi_vo, 334 .timeout = RSU_TX_TIMEOUT 335 }, 336 [RSU_BULK_TX_H2C] = { 337 .type = UE_BULK, 338 .endpoint = 0x0d, 339 .direction = UE_DIR_OUT, 340 .bufsize = RSU_TXBUFSZ, 341 .flags = { 342 .ext_buffer = 1, 343 .pipe_bof = 1, 344 .short_xfer_ok = 1 345 }, 346 .callback = rsu_bulk_tx_callback_h2c, 347 .timeout = RSU_TX_TIMEOUT 348 }, 349 }; 350 351 static int 352 rsu_match(device_t self) 353 { 354 struct usb_attach_arg *uaa = device_get_ivars(self); 355 356 if (uaa->usb_mode != USB_MODE_HOST || 357 uaa->info.bIfaceIndex != 0 || 358 uaa->info.bConfigIndex != 0) 359 return (ENXIO); 360 361 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 362 } 363 364 static int 365 rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 366 { 367 368 return (ENOTSUP); 369 } 370 371 static void 372 rsu_update_chw(struct ieee80211com *ic) 373 { 374 375 } 376 377 /* 378 * notification from net80211 that it'd like to do A-MPDU on the given TID. 379 * 380 * Note: this actually hangs traffic at the present moment, so don't use it. 381 * The firmware debug does indiciate it's sending and establishing a TX AMPDU 382 * session, but then no traffic flows. 383 */ 384 static int 385 rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 386 { 387 #if 0 388 struct rsu_softc *sc = ni->ni_ic->ic_softc; 389 struct r92s_add_ba_req req; 390 391 /* Don't enable if it's requested or running */ 392 if (IEEE80211_AMPDU_REQUESTED(tap)) 393 return (0); 394 if (IEEE80211_AMPDU_RUNNING(tap)) 395 return (0); 396 397 /* We've decided to send addba; so send it */ 398 req.tid = htole32(tap->txa_tid); 399 400 /* Attempt net80211 state */ 401 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 402 return (0); 403 404 /* Send the firmware command */ 405 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: establishing AMPDU TX for TID %d\n", 406 __func__, 407 tap->txa_tid); 408 409 RSU_LOCK(sc); 410 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 1) { 411 RSU_UNLOCK(sc); 412 /* Mark failure */ 413 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 414 return (0); 415 } 416 RSU_UNLOCK(sc); 417 418 /* Mark success; we don't get any further notifications */ 419 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 420 #endif 421 /* Return 0, we're driving this ourselves */ 422 return (0); 423 } 424 425 static int 426 rsu_wme_update(struct ieee80211com *ic) 427 { 428 429 /* Firmware handles this; not our problem */ 430 return (0); 431 } 432 433 static int 434 rsu_attach(device_t self) 435 { 436 struct usb_attach_arg *uaa = device_get_ivars(self); 437 struct rsu_softc *sc = device_get_softc(self); 438 struct ieee80211com *ic = &sc->sc_ic; 439 int error; 440 uint8_t iface_index; 441 struct usb_interface *iface; 442 const char *rft; 443 444 device_set_usb_desc(self); 445 sc->sc_udev = uaa->device; 446 sc->sc_dev = self; 447 sc->sc_rx_checksum_enable = 1; 448 if (rsu_enable_11n) 449 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 450 451 /* Get number of endpoints */ 452 iface = usbd_get_iface(sc->sc_udev, 0); 453 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 454 455 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 456 if (sc->sc_nendpoints != 4) { 457 device_printf(sc->sc_dev, 458 "the driver currently only supports 4-endpoint devices\n"); 459 return (ENXIO); 460 } 461 462 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 463 MTX_DEF); 464 RSU_DELKEY_BMAP_LOCK_INIT(sc); 465 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 466 rsu_calib_task, sc); 467 TASK_INIT(&sc->del_key_task, 0, rsu_delete_key_pair_cb, sc); 468 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 469 mbufq_init(&sc->sc_snd, ifqmaxlen); 470 471 /* Allocate Tx/Rx buffers. */ 472 error = rsu_alloc_rx_list(sc); 473 if (error != 0) { 474 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 475 goto fail_usb; 476 } 477 478 error = rsu_alloc_tx_list(sc); 479 if (error != 0) { 480 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 481 rsu_free_rx_list(sc); 482 goto fail_usb; 483 } 484 485 iface_index = 0; 486 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 487 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 488 if (error) { 489 device_printf(sc->sc_dev, 490 "could not allocate USB transfers, err=%s\n", 491 usbd_errstr(error)); 492 goto fail_usb; 493 } 494 RSU_LOCK(sc); 495 /* Read chip revision. */ 496 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 497 if (sc->cut != 3) 498 sc->cut = (sc->cut >> 1) + 1; 499 error = rsu_read_rom(sc); 500 RSU_UNLOCK(sc); 501 if (error != 0) { 502 device_printf(self, "could not read ROM\n"); 503 goto fail_rom; 504 } 505 506 /* Figure out TX/RX streams */ 507 switch (sc->rom[84]) { 508 case 0x0: 509 sc->sc_rftype = RTL8712_RFCONFIG_1T1R; 510 sc->sc_nrxstream = 1; 511 sc->sc_ntxstream = 1; 512 rft = "1T1R"; 513 break; 514 case 0x1: 515 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 516 sc->sc_nrxstream = 2; 517 sc->sc_ntxstream = 1; 518 rft = "1T2R"; 519 break; 520 case 0x2: 521 sc->sc_rftype = RTL8712_RFCONFIG_2T2R; 522 sc->sc_nrxstream = 2; 523 sc->sc_ntxstream = 2; 524 rft = "2T2R"; 525 break; 526 case 0x3: /* "green" NIC */ 527 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 528 sc->sc_nrxstream = 2; 529 sc->sc_ntxstream = 1; 530 rft = "1T2R ('green')"; 531 break; 532 default: 533 device_printf(sc->sc_dev, 534 "%s: unknown board type (rfconfig=0x%02x)\n", 535 __func__, 536 sc->rom[84]); 537 goto fail_rom; 538 } 539 540 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 541 device_printf(self, "MAC/BB RTL8712 cut %d %s\n", sc->cut, rft); 542 543 ic->ic_softc = sc; 544 ic->ic_name = device_get_nameunit(self); 545 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 546 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 547 548 /* Set device capabilities. */ 549 ic->ic_caps = 550 IEEE80211_C_STA | /* station mode */ 551 IEEE80211_C_MONITOR | /* monitor mode supported */ 552 #if 0 553 IEEE80211_C_BGSCAN | /* Background scan. */ 554 #endif 555 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 556 IEEE80211_C_WME | /* WME/QoS */ 557 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 558 IEEE80211_C_WPA; /* WPA/RSN. */ 559 560 ic->ic_cryptocaps = 561 IEEE80211_CRYPTO_WEP | 562 IEEE80211_CRYPTO_TKIP | 563 IEEE80211_CRYPTO_AES_CCM; 564 565 /* Check if HT support is present. */ 566 if (sc->sc_ht) { 567 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 568 569 /* Enable basic HT */ 570 ic->ic_htcaps = IEEE80211_HTC_HT | 571 #if 0 572 IEEE80211_HTC_AMPDU | 573 #endif 574 IEEE80211_HTC_AMSDU | 575 IEEE80211_HTCAP_MAXAMSDU_3839 | 576 IEEE80211_HTCAP_SMPS_OFF; 577 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 578 579 /* set number of spatial streams */ 580 ic->ic_txstream = sc->sc_ntxstream; 581 ic->ic_rxstream = sc->sc_nrxstream; 582 } 583 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 584 585 rsu_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 586 ic->ic_channels); 587 588 ieee80211_ifattach(ic); 589 ic->ic_raw_xmit = rsu_raw_xmit; 590 ic->ic_scan_start = rsu_scan_start; 591 ic->ic_scan_end = rsu_scan_end; 592 ic->ic_getradiocaps = rsu_getradiocaps; 593 ic->ic_set_channel = rsu_set_channel; 594 ic->ic_scan_curchan = rsu_scan_curchan; 595 ic->ic_scan_mindwell = rsu_scan_mindwell; 596 ic->ic_vap_create = rsu_vap_create; 597 ic->ic_vap_delete = rsu_vap_delete; 598 ic->ic_update_promisc = rsu_update_promisc; 599 ic->ic_update_mcast = rsu_update_mcast; 600 ic->ic_ioctl = rsu_ioctl_net; 601 ic->ic_parent = rsu_parent; 602 ic->ic_transmit = rsu_transmit; 603 ic->ic_send_mgmt = rsu_send_mgmt; 604 ic->ic_update_chw = rsu_update_chw; 605 ic->ic_ampdu_enable = rsu_ampdu_enable; 606 ic->ic_wme.wme_update = rsu_wme_update; 607 608 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 609 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 610 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 611 RSU_RX_RADIOTAP_PRESENT); 612 613 if (bootverbose) 614 ieee80211_announce(ic); 615 616 return (0); 617 618 fail_rom: 619 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 620 fail_usb: 621 mtx_destroy(&sc->sc_mtx); 622 return (ENXIO); 623 } 624 625 static int 626 rsu_detach(device_t self) 627 { 628 struct rsu_softc *sc = device_get_softc(self); 629 struct ieee80211com *ic = &sc->sc_ic; 630 631 rsu_stop(sc); 632 633 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 634 635 /* 636 * Free buffers /before/ we detach from net80211, else node 637 * references to destroyed vaps will lead to a panic. 638 */ 639 /* Free Tx/Rx buffers. */ 640 RSU_LOCK(sc); 641 rsu_free_tx_list(sc); 642 rsu_free_rx_list(sc); 643 RSU_UNLOCK(sc); 644 645 /* Frames are freed; detach from net80211 */ 646 ieee80211_ifdetach(ic); 647 648 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 649 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 650 taskqueue_drain(taskqueue_thread, &sc->tx_task); 651 652 RSU_DELKEY_BMAP_LOCK_DESTROY(sc); 653 mtx_destroy(&sc->sc_mtx); 654 655 return (0); 656 } 657 658 static usb_error_t 659 rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 660 void *data) 661 { 662 usb_error_t err; 663 int ntries = 10; 664 665 RSU_ASSERT_LOCKED(sc); 666 667 while (ntries--) { 668 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 669 req, data, 0, NULL, 250 /* ms */); 670 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 671 break; 672 RSU_DPRINTF(sc, RSU_DEBUG_USB, 673 "Control request failed, %s (retries left: %d)\n", 674 usbd_errstr(err), ntries); 675 rsu_ms_delay(sc, 10); 676 } 677 678 return (err); 679 } 680 681 static struct ieee80211vap * 682 rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 683 enum ieee80211_opmode opmode, int flags, 684 const uint8_t bssid[IEEE80211_ADDR_LEN], 685 const uint8_t mac[IEEE80211_ADDR_LEN]) 686 { 687 struct rsu_softc *sc = ic->ic_softc; 688 struct rsu_vap *uvp; 689 struct ieee80211vap *vap; 690 struct ifnet *ifp; 691 692 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 693 return (NULL); 694 695 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 696 vap = &uvp->vap; 697 698 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 699 flags, bssid) != 0) { 700 /* out of memory */ 701 free(uvp, M_80211_VAP); 702 return (NULL); 703 } 704 705 ifp = vap->iv_ifp; 706 ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 707 RSU_LOCK(sc); 708 if (sc->sc_rx_checksum_enable) 709 ifp->if_capenable |= IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 710 RSU_UNLOCK(sc); 711 712 /* override state transition machine */ 713 uvp->newstate = vap->iv_newstate; 714 if (opmode == IEEE80211_M_MONITOR) 715 vap->iv_newstate = rsu_monitor_newstate; 716 else 717 vap->iv_newstate = rsu_newstate; 718 vap->iv_key_alloc = rsu_key_alloc; 719 vap->iv_key_set = rsu_key_set; 720 vap->iv_key_delete = rsu_key_delete; 721 722 /* Limits from the r92su driver */ 723 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 724 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 725 726 /* complete setup */ 727 ieee80211_vap_attach(vap, ieee80211_media_change, 728 ieee80211_media_status, mac); 729 ic->ic_opmode = opmode; 730 731 return (vap); 732 } 733 734 static void 735 rsu_vap_delete(struct ieee80211vap *vap) 736 { 737 struct rsu_vap *uvp = RSU_VAP(vap); 738 739 ieee80211_vap_detach(vap); 740 free(uvp, M_80211_VAP); 741 } 742 743 static void 744 rsu_scan_start(struct ieee80211com *ic) 745 { 746 struct rsu_softc *sc = ic->ic_softc; 747 struct ieee80211_scan_state *ss = ic->ic_scan; 748 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 749 int error; 750 751 /* Scanning is done by the firmware. */ 752 RSU_LOCK(sc); 753 sc->sc_active_scan = !!(ss->ss_flags & IEEE80211_SCAN_ACTIVE); 754 /* XXX TODO: force awake if in network-sleep? */ 755 error = rsu_site_survey(sc, ss->ss_nssid > 0 ? &ss->ss_ssid[0] : NULL); 756 RSU_UNLOCK(sc); 757 if (error != 0) { 758 device_printf(sc->sc_dev, 759 "could not send site survey command\n"); 760 ieee80211_cancel_scan(vap); 761 } 762 } 763 764 static void 765 rsu_scan_end(struct ieee80211com *ic) 766 { 767 /* Nothing to do here. */ 768 } 769 770 static void 771 rsu_getradiocaps(struct ieee80211com *ic, 772 int maxchans, int *nchans, struct ieee80211_channel chans[]) 773 { 774 struct rsu_softc *sc = ic->ic_softc; 775 uint8_t bands[IEEE80211_MODE_BYTES]; 776 777 /* Set supported .11b and .11g rates. */ 778 memset(bands, 0, sizeof(bands)); 779 setbit(bands, IEEE80211_MODE_11B); 780 setbit(bands, IEEE80211_MODE_11G); 781 if (sc->sc_ht) 782 setbit(bands, IEEE80211_MODE_11NG); 783 ieee80211_add_channel_list_2ghz(chans, maxchans, nchans, 784 rsu_chan_2ghz, nitems(rsu_chan_2ghz), bands, 785 (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0); 786 } 787 788 static void 789 rsu_set_channel(struct ieee80211com *ic) 790 { 791 struct rsu_softc *sc = ic->ic_softc; 792 793 /* 794 * Only need to set the channel in Monitor mode. AP scanning and auth 795 * are already taken care of by their respective firmware commands. 796 */ 797 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 798 struct r92s_set_channel cmd; 799 int error; 800 801 cmd.channel = IEEE80211_CHAN2IEEE(ic->ic_curchan); 802 803 RSU_LOCK(sc); 804 error = rsu_fw_cmd(sc, R92S_CMD_SET_CHANNEL, &cmd, 805 sizeof(cmd)); 806 if (error != 0) { 807 device_printf(sc->sc_dev, 808 "%s: error %d setting channel\n", __func__, 809 error); 810 } 811 RSU_UNLOCK(sc); 812 } 813 } 814 815 static void 816 rsu_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 817 { 818 /* Scan is done in rsu_scan_start(). */ 819 } 820 821 /** 822 * Called by the net80211 framework to indicate 823 * the minimum dwell time has been met, terminate the scan. 824 * We don't actually terminate the scan as the firmware will notify 825 * us when it's finished and we have no way to interrupt it. 826 */ 827 static void 828 rsu_scan_mindwell(struct ieee80211_scan_state *ss) 829 { 830 /* NB: don't try to abort scan; wait for firmware to finish */ 831 } 832 833 static void 834 rsu_update_promisc(struct ieee80211com *ic) 835 { 836 struct rsu_softc *sc = ic->ic_softc; 837 838 RSU_LOCK(sc); 839 if (sc->sc_running) 840 rsu_rxfilter_refresh(sc); 841 RSU_UNLOCK(sc); 842 } 843 844 /* 845 * The same as rtwn_get_multi_pos() / rtwn_set_multi(). 846 */ 847 static uint8_t 848 rsu_get_multi_pos(const uint8_t maddr[]) 849 { 850 uint64_t mask = 0x00004d101df481b4; 851 uint8_t pos = 0x27; /* initial value */ 852 int i, j; 853 854 for (i = 0; i < IEEE80211_ADDR_LEN; i++) 855 for (j = (i == 0) ? 1 : 0; j < 8; j++) 856 if ((maddr[i] >> j) & 1) 857 pos ^= (mask >> (i * 8 + j - 1)); 858 859 pos &= 0x3f; 860 861 return (pos); 862 } 863 864 static void 865 rsu_set_multi(struct rsu_softc *sc) 866 { 867 struct ieee80211com *ic = &sc->sc_ic; 868 uint32_t mfilt[2]; 869 870 RSU_ASSERT_LOCKED(sc); 871 872 /* general structure was copied from ath(4). */ 873 if (ic->ic_allmulti == 0) { 874 struct ieee80211vap *vap; 875 struct ifnet *ifp; 876 struct ifmultiaddr *ifma; 877 878 /* 879 * Merge multicast addresses to form the hardware filter. 880 */ 881 mfilt[0] = mfilt[1] = 0; 882 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 883 ifp = vap->iv_ifp; 884 if_maddr_rlock(ifp); 885 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 886 caddr_t dl; 887 uint8_t pos; 888 889 dl = LLADDR((struct sockaddr_dl *) 890 ifma->ifma_addr); 891 pos = rsu_get_multi_pos(dl); 892 893 mfilt[pos / 32] |= (1 << (pos % 32)); 894 } 895 if_maddr_runlock(ifp); 896 } 897 } else 898 mfilt[0] = mfilt[1] = ~0; 899 900 rsu_write_4(sc, R92S_MAR + 0, mfilt[0]); 901 rsu_write_4(sc, R92S_MAR + 4, mfilt[1]); 902 903 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: MC filter %08x:%08x\n", 904 __func__, mfilt[0], mfilt[1]); 905 } 906 907 static void 908 rsu_update_mcast(struct ieee80211com *ic) 909 { 910 struct rsu_softc *sc = ic->ic_softc; 911 912 RSU_LOCK(sc); 913 if (sc->sc_running) 914 rsu_set_multi(sc); 915 RSU_UNLOCK(sc); 916 } 917 918 static int 919 rsu_alloc_list(struct rsu_softc *sc, struct rsu_data data[], 920 int ndata, int maxsz) 921 { 922 int i, error; 923 924 for (i = 0; i < ndata; i++) { 925 struct rsu_data *dp = &data[i]; 926 dp->sc = sc; 927 dp->m = NULL; 928 dp->buf = malloc(maxsz, M_USBDEV, M_NOWAIT); 929 if (dp->buf == NULL) { 930 device_printf(sc->sc_dev, 931 "could not allocate buffer\n"); 932 error = ENOMEM; 933 goto fail; 934 } 935 dp->ni = NULL; 936 } 937 938 return (0); 939 fail: 940 rsu_free_list(sc, data, ndata); 941 return (error); 942 } 943 944 static int 945 rsu_alloc_rx_list(struct rsu_softc *sc) 946 { 947 int error, i; 948 949 error = rsu_alloc_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT, 950 RSU_RXBUFSZ); 951 if (error != 0) 952 return (error); 953 954 STAILQ_INIT(&sc->sc_rx_active); 955 STAILQ_INIT(&sc->sc_rx_inactive); 956 957 for (i = 0; i < RSU_RX_LIST_COUNT; i++) 958 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i], next); 959 960 return (0); 961 } 962 963 static int 964 rsu_alloc_tx_list(struct rsu_softc *sc) 965 { 966 int error, i; 967 968 error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT, 969 RSU_TXBUFSZ); 970 if (error != 0) 971 return (error); 972 973 STAILQ_INIT(&sc->sc_tx_inactive); 974 975 for (i = 0; i != RSU_N_TRANSFER; i++) { 976 STAILQ_INIT(&sc->sc_tx_active[i]); 977 STAILQ_INIT(&sc->sc_tx_pending[i]); 978 } 979 980 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 981 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i], next); 982 } 983 984 return (0); 985 } 986 987 static void 988 rsu_free_tx_list(struct rsu_softc *sc) 989 { 990 int i; 991 992 /* prevent further allocations from TX list(s) */ 993 STAILQ_INIT(&sc->sc_tx_inactive); 994 995 for (i = 0; i != RSU_N_TRANSFER; i++) { 996 STAILQ_INIT(&sc->sc_tx_active[i]); 997 STAILQ_INIT(&sc->sc_tx_pending[i]); 998 } 999 1000 rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT); 1001 } 1002 1003 static void 1004 rsu_free_rx_list(struct rsu_softc *sc) 1005 { 1006 /* prevent further allocations from RX list(s) */ 1007 STAILQ_INIT(&sc->sc_rx_inactive); 1008 STAILQ_INIT(&sc->sc_rx_active); 1009 1010 rsu_free_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT); 1011 } 1012 1013 static void 1014 rsu_free_list(struct rsu_softc *sc, struct rsu_data data[], int ndata) 1015 { 1016 int i; 1017 1018 for (i = 0; i < ndata; i++) { 1019 struct rsu_data *dp = &data[i]; 1020 1021 if (dp->buf != NULL) { 1022 free(dp->buf, M_USBDEV); 1023 dp->buf = NULL; 1024 } 1025 if (dp->ni != NULL) { 1026 ieee80211_free_node(dp->ni); 1027 dp->ni = NULL; 1028 } 1029 } 1030 } 1031 1032 static struct rsu_data * 1033 _rsu_getbuf(struct rsu_softc *sc) 1034 { 1035 struct rsu_data *bf; 1036 1037 bf = STAILQ_FIRST(&sc->sc_tx_inactive); 1038 if (bf != NULL) 1039 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next); 1040 else 1041 bf = NULL; 1042 return (bf); 1043 } 1044 1045 static struct rsu_data * 1046 rsu_getbuf(struct rsu_softc *sc) 1047 { 1048 struct rsu_data *bf; 1049 1050 RSU_ASSERT_LOCKED(sc); 1051 1052 bf = _rsu_getbuf(sc); 1053 if (bf == NULL) { 1054 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: no buffers\n", __func__); 1055 } 1056 return (bf); 1057 } 1058 1059 static void 1060 rsu_freebuf(struct rsu_softc *sc, struct rsu_data *bf) 1061 { 1062 1063 RSU_ASSERT_LOCKED(sc); 1064 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, bf, next); 1065 } 1066 1067 static int 1068 rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1069 int len) 1070 { 1071 usb_device_request_t req; 1072 1073 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1074 req.bRequest = R92S_REQ_REGS; 1075 USETW(req.wValue, addr); 1076 USETW(req.wIndex, 0); 1077 USETW(req.wLength, len); 1078 1079 return (rsu_do_request(sc, &req, buf)); 1080 } 1081 1082 static void 1083 rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 1084 { 1085 rsu_write_region_1(sc, addr, &val, 1); 1086 } 1087 1088 static void 1089 rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 1090 { 1091 val = htole16(val); 1092 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 1093 } 1094 1095 static void 1096 rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 1097 { 1098 val = htole32(val); 1099 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 1100 } 1101 1102 static int 1103 rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1104 int len) 1105 { 1106 usb_device_request_t req; 1107 1108 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1109 req.bRequest = R92S_REQ_REGS; 1110 USETW(req.wValue, addr); 1111 USETW(req.wIndex, 0); 1112 USETW(req.wLength, len); 1113 1114 return (rsu_do_request(sc, &req, buf)); 1115 } 1116 1117 static uint8_t 1118 rsu_read_1(struct rsu_softc *sc, uint16_t addr) 1119 { 1120 uint8_t val; 1121 1122 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 1123 return (0xff); 1124 return (val); 1125 } 1126 1127 static uint16_t 1128 rsu_read_2(struct rsu_softc *sc, uint16_t addr) 1129 { 1130 uint16_t val; 1131 1132 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 1133 return (0xffff); 1134 return (le16toh(val)); 1135 } 1136 1137 static uint32_t 1138 rsu_read_4(struct rsu_softc *sc, uint16_t addr) 1139 { 1140 uint32_t val; 1141 1142 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 1143 return (0xffffffff); 1144 return (le32toh(val)); 1145 } 1146 1147 static int 1148 rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 1149 { 1150 int ntries; 1151 1152 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 1153 rsu_ms_delay(sc, 1); 1154 for (ntries = 0; ntries < 50; ntries++) { 1155 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 1156 return (0); 1157 rsu_ms_delay(sc, 1); 1158 } 1159 return (ETIMEDOUT); 1160 } 1161 1162 static uint8_t 1163 rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 1164 { 1165 uint32_t reg; 1166 int ntries; 1167 1168 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1169 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 1170 reg &= ~R92S_EFUSE_CTRL_VALID; 1171 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 1172 /* Wait for read operation to complete. */ 1173 for (ntries = 0; ntries < 100; ntries++) { 1174 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1175 if (reg & R92S_EFUSE_CTRL_VALID) 1176 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 1177 rsu_ms_delay(sc, 1); 1178 } 1179 device_printf(sc->sc_dev, 1180 "could not read efuse byte at address 0x%x\n", addr); 1181 return (0xff); 1182 } 1183 1184 static int 1185 rsu_read_rom(struct rsu_softc *sc) 1186 { 1187 uint8_t *rom = sc->rom; 1188 uint16_t addr = 0; 1189 uint32_t reg; 1190 uint8_t off, msk; 1191 int i; 1192 1193 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 1194 reg = rsu_read_1(sc, R92S_EE_9346CR); 1195 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 1196 return (EIO); 1197 1198 /* Turn on 2.5V to prevent eFuse leakage. */ 1199 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 1200 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 1201 rsu_ms_delay(sc, 1); 1202 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 1203 1204 /* Read full ROM image. */ 1205 memset(&sc->rom, 0xff, sizeof(sc->rom)); 1206 while (addr < 512) { 1207 reg = rsu_efuse_read_1(sc, addr); 1208 if (reg == 0xff) 1209 break; 1210 addr++; 1211 off = reg >> 4; 1212 msk = reg & 0xf; 1213 for (i = 0; i < 4; i++) { 1214 if (msk & (1 << i)) 1215 continue; 1216 rom[off * 8 + i * 2 + 0] = 1217 rsu_efuse_read_1(sc, addr); 1218 addr++; 1219 rom[off * 8 + i * 2 + 1] = 1220 rsu_efuse_read_1(sc, addr); 1221 addr++; 1222 } 1223 } 1224 #ifdef USB_DEBUG 1225 if (rsu_debug & RSU_DEBUG_RESET) { 1226 /* Dump ROM content. */ 1227 printf("\n"); 1228 for (i = 0; i < sizeof(sc->rom); i++) 1229 printf("%02x:", rom[i]); 1230 printf("\n"); 1231 } 1232 #endif 1233 return (0); 1234 } 1235 1236 static int 1237 rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 1238 { 1239 const uint8_t which = RSU_H2C_ENDPOINT; 1240 struct rsu_data *data; 1241 struct r92s_tx_desc *txd; 1242 struct r92s_fw_cmd_hdr *cmd; 1243 int cmdsz; 1244 int xferlen; 1245 1246 RSU_ASSERT_LOCKED(sc); 1247 1248 data = rsu_getbuf(sc); 1249 if (data == NULL) 1250 return (ENOMEM); 1251 1252 /* Blank the entire payload, just to be safe */ 1253 memset(data->buf, '\0', RSU_TXBUFSZ); 1254 1255 /* Round-up command length to a multiple of 8 bytes. */ 1256 /* XXX TODO: is this required? */ 1257 cmdsz = (len + 7) & ~7; 1258 1259 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 1260 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 1261 memset(data->buf, 0, xferlen); 1262 1263 /* Setup Tx descriptor. */ 1264 txd = (struct r92s_tx_desc *)data->buf; 1265 txd->txdw0 = htole32( 1266 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1267 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 1268 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1269 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 1270 1271 /* Setup command header. */ 1272 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 1273 cmd->len = htole16(cmdsz); 1274 cmd->code = code; 1275 cmd->seq = sc->cmd_seq; 1276 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 1277 1278 /* Copy command payload. */ 1279 memcpy(&cmd[1], buf, len); 1280 1281 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FWCMD, 1282 "%s: Tx cmd code=0x%x len=0x%x\n", 1283 __func__, code, cmdsz); 1284 data->buflen = xferlen; 1285 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 1286 usbd_transfer_start(sc->sc_xfer[which]); 1287 1288 return (0); 1289 } 1290 1291 /* ARGSUSED */ 1292 static void 1293 rsu_calib_task(void *arg, int pending __unused) 1294 { 1295 struct rsu_softc *sc = arg; 1296 #ifdef notyet 1297 uint32_t reg; 1298 #endif 1299 1300 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: running calibration task\n", 1301 __func__); 1302 1303 RSU_LOCK(sc); 1304 #ifdef notyet 1305 /* Read WPS PBC status. */ 1306 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 1307 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 1308 rsu_write_1(sc, R92S_GPIO_IO_SEL, 1309 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 1310 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 1311 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 1312 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "WPS PBC is pushed\n"); 1313 #endif 1314 /* Read current signal level. */ 1315 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 1316 sc->sc_currssi = rsu_read_4(sc, R92S_IOCMD_DATA); 1317 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: RSSI=%d (%d)\n", 1318 __func__, sc->sc_currssi, 1319 rsu_hwrssi_to_rssi(sc, sc->sc_currssi)); 1320 } 1321 if (sc->sc_calibrating) 1322 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1323 RSU_UNLOCK(sc); 1324 } 1325 1326 static void 1327 rsu_tx_task(void *arg, int pending __unused) 1328 { 1329 struct rsu_softc *sc = arg; 1330 1331 RSU_LOCK(sc); 1332 _rsu_start(sc); 1333 RSU_UNLOCK(sc); 1334 } 1335 1336 #define RSU_PWR_UNKNOWN 0x0 1337 #define RSU_PWR_ACTIVE 0x1 1338 #define RSU_PWR_OFF 0x2 1339 #define RSU_PWR_SLEEP 0x3 1340 1341 /* 1342 * Set the current power state. 1343 * 1344 * The rtlwifi code doesn't do this so aggressively; it 1345 * waits for an idle period after association with 1346 * no traffic before doing this. 1347 * 1348 * For now - it's on in all states except RUN, and 1349 * in RUN it'll transition to allow sleep. 1350 */ 1351 1352 struct r92s_pwr_cmd { 1353 uint8_t mode; 1354 uint8_t smart_ps; 1355 uint8_t bcn_pass_time; 1356 }; 1357 1358 static int 1359 rsu_set_fw_power_state(struct rsu_softc *sc, int state) 1360 { 1361 struct r92s_set_pwr_mode cmd; 1362 //struct r92s_pwr_cmd cmd; 1363 int error; 1364 1365 RSU_ASSERT_LOCKED(sc); 1366 1367 /* only change state if required */ 1368 if (sc->sc_curpwrstate == state) 1369 return (0); 1370 1371 memset(&cmd, 0, sizeof(cmd)); 1372 1373 switch (state) { 1374 case RSU_PWR_ACTIVE: 1375 /* Force the hardware awake */ 1376 rsu_write_1(sc, R92S_USB_HRPWM, 1377 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 1378 cmd.mode = R92S_PS_MODE_ACTIVE; 1379 break; 1380 case RSU_PWR_SLEEP: 1381 cmd.mode = R92S_PS_MODE_DTIM; /* XXX configurable? */ 1382 cmd.smart_ps = 1; /* XXX 2 if doing p2p */ 1383 cmd.bcn_pass_time = 5; /* in 100mS usb.c, linux/rtlwifi */ 1384 break; 1385 case RSU_PWR_OFF: 1386 cmd.mode = R92S_PS_MODE_RADIOOFF; 1387 break; 1388 default: 1389 device_printf(sc->sc_dev, "%s: unknown ps mode (%d)\n", 1390 __func__, 1391 state); 1392 return (ENXIO); 1393 } 1394 1395 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1396 "%s: setting ps mode to %d (mode %d)\n", 1397 __func__, state, cmd.mode); 1398 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 1399 if (error == 0) 1400 sc->sc_curpwrstate = state; 1401 1402 return (error); 1403 } 1404 1405 static void 1406 rsu_set_led(struct rsu_softc *sc, int on) 1407 { 1408 rsu_write_1(sc, R92S_LEDCFG, 1409 (rsu_read_1(sc, R92S_LEDCFG) & 0xf0) | (!on << 3)); 1410 } 1411 1412 static int 1413 rsu_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, 1414 int arg) 1415 { 1416 struct ieee80211com *ic = vap->iv_ic; 1417 struct rsu_softc *sc = ic->ic_softc; 1418 struct rsu_vap *uvp = RSU_VAP(vap); 1419 1420 if (vap->iv_state != nstate) { 1421 IEEE80211_UNLOCK(ic); 1422 RSU_LOCK(sc); 1423 1424 switch (nstate) { 1425 case IEEE80211_S_INIT: 1426 sc->sc_vap_is_running = 0; 1427 rsu_set_led(sc, 0); 1428 break; 1429 case IEEE80211_S_RUN: 1430 sc->sc_vap_is_running = 1; 1431 rsu_set_led(sc, 1); 1432 break; 1433 default: 1434 /* NOTREACHED */ 1435 break; 1436 } 1437 rsu_rxfilter_refresh(sc); 1438 1439 RSU_UNLOCK(sc); 1440 IEEE80211_LOCK(ic); 1441 } 1442 1443 return (uvp->newstate(vap, nstate, arg)); 1444 } 1445 1446 static int 1447 rsu_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1448 { 1449 struct rsu_vap *uvp = RSU_VAP(vap); 1450 struct ieee80211com *ic = vap->iv_ic; 1451 struct rsu_softc *sc = ic->ic_softc; 1452 struct ieee80211_node *ni; 1453 struct ieee80211_rateset *rs; 1454 enum ieee80211_state ostate; 1455 int error, startcal = 0; 1456 1457 ostate = vap->iv_state; 1458 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: %s -> %s\n", 1459 __func__, 1460 ieee80211_state_name[ostate], 1461 ieee80211_state_name[nstate]); 1462 1463 IEEE80211_UNLOCK(ic); 1464 if (ostate == IEEE80211_S_RUN) { 1465 RSU_LOCK(sc); 1466 /* Stop calibration. */ 1467 sc->sc_calibrating = 0; 1468 1469 /* Pause Tx for AC queues. */ 1470 rsu_write_1(sc, R92S_TXPAUSE, R92S_TXPAUSE_AC); 1471 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1472 1473 RSU_UNLOCK(sc); 1474 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 1475 taskqueue_drain(taskqueue_thread, &sc->tx_task); 1476 RSU_LOCK(sc); 1477 /* Disassociate from our current BSS. */ 1478 rsu_disconnect(sc); 1479 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1480 1481 /* Refresh Rx filter (may be modified by firmware). */ 1482 sc->sc_vap_is_running = 0; 1483 rsu_rxfilter_refresh(sc); 1484 1485 /* Reinstall static keys. */ 1486 if (sc->sc_running) 1487 rsu_reinit_static_keys(sc); 1488 } else 1489 RSU_LOCK(sc); 1490 switch (nstate) { 1491 case IEEE80211_S_INIT: 1492 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1493 break; 1494 case IEEE80211_S_AUTH: 1495 ni = ieee80211_ref_node(vap->iv_bss); 1496 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1497 error = rsu_join_bss(sc, ni); 1498 ieee80211_free_node(ni); 1499 if (error != 0) { 1500 device_printf(sc->sc_dev, 1501 "could not send join command\n"); 1502 } 1503 break; 1504 case IEEE80211_S_RUN: 1505 /* Flush all AC queues. */ 1506 rsu_write_1(sc, R92S_TXPAUSE, 0); 1507 1508 ni = ieee80211_ref_node(vap->iv_bss); 1509 rs = &ni->ni_rates; 1510 /* Indicate highest supported rate. */ 1511 ni->ni_txrate = rs->rs_rates[rs->rs_nrates - 1]; 1512 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1513 ieee80211_free_node(ni); 1514 startcal = 1; 1515 break; 1516 default: 1517 break; 1518 } 1519 if (startcal != 0) { 1520 sc->sc_calibrating = 1; 1521 /* Start periodic calibration. */ 1522 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, 1523 hz); 1524 } 1525 RSU_UNLOCK(sc); 1526 IEEE80211_LOCK(ic); 1527 return (uvp->newstate(vap, nstate, arg)); 1528 } 1529 1530 static int 1531 rsu_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1532 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1533 { 1534 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1535 int is_checked = 0; 1536 1537 if (&vap->iv_nw_keys[0] <= k && 1538 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1539 *keyix = ieee80211_crypto_get_key_wepidx(vap, k); 1540 } else { 1541 if (vap->iv_opmode != IEEE80211_M_STA) { 1542 *keyix = 0; 1543 /* TODO: obtain keyix from node id */ 1544 is_checked = 1; 1545 k->wk_flags |= IEEE80211_KEY_SWCRYPT; 1546 } else 1547 *keyix = R92S_MACID_BSS; 1548 } 1549 1550 if (!is_checked) { 1551 RSU_LOCK(sc); 1552 if (isset(sc->keys_bmap, *keyix)) { 1553 device_printf(sc->sc_dev, 1554 "%s: key slot %d is already used!\n", 1555 __func__, *keyix); 1556 RSU_UNLOCK(sc); 1557 return (0); 1558 } 1559 setbit(sc->keys_bmap, *keyix); 1560 RSU_UNLOCK(sc); 1561 } 1562 1563 *rxkeyix = *keyix; 1564 1565 return (1); 1566 } 1567 1568 static int 1569 rsu_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k, 1570 int set) 1571 { 1572 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1573 int ret; 1574 1575 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 1576 /* Not for us. */ 1577 return (1); 1578 } 1579 1580 /* Handle group keys. */ 1581 if (&vap->iv_nw_keys[0] <= k && 1582 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1583 KASSERT(k->wk_keyix < nitems(sc->group_keys), 1584 ("keyix %u > %zu\n", k->wk_keyix, nitems(sc->group_keys))); 1585 1586 RSU_LOCK(sc); 1587 sc->group_keys[k->wk_keyix] = (set ? k : NULL); 1588 if (!sc->sc_running) { 1589 /* Static keys will be set during device startup. */ 1590 RSU_UNLOCK(sc); 1591 return (1); 1592 } 1593 1594 if (set) 1595 ret = rsu_set_key_group(sc, k); 1596 else 1597 ret = rsu_delete_key(sc, k->wk_keyix); 1598 RSU_UNLOCK(sc); 1599 1600 return (!ret); 1601 } 1602 1603 if (set) { 1604 /* wait for pending key removal */ 1605 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 1606 1607 RSU_LOCK(sc); 1608 ret = rsu_set_key_pair(sc, k); 1609 RSU_UNLOCK(sc); 1610 } else { 1611 RSU_DELKEY_BMAP_LOCK(sc); 1612 setbit(sc->free_keys_bmap, k->wk_keyix); 1613 RSU_DELKEY_BMAP_UNLOCK(sc); 1614 1615 /* workaround ieee80211_node_delucastkey() locking */ 1616 taskqueue_enqueue(taskqueue_thread, &sc->del_key_task); 1617 ret = 0; /* fake success */ 1618 } 1619 1620 return (!ret); 1621 } 1622 1623 static int 1624 rsu_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1625 { 1626 return (rsu_process_key(vap, k, 1)); 1627 } 1628 1629 static int 1630 rsu_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1631 { 1632 return (rsu_process_key(vap, k, 0)); 1633 } 1634 1635 static int 1636 rsu_cam_read(struct rsu_softc *sc, uint8_t addr, uint32_t *val) 1637 { 1638 int ntries; 1639 1640 rsu_write_4(sc, R92S_CAMCMD, 1641 R92S_CAMCMD_POLLING | SM(R92S_CAMCMD_ADDR, addr)); 1642 for (ntries = 0; ntries < 10; ntries++) { 1643 if (!(rsu_read_4(sc, R92S_CAMCMD) & R92S_CAMCMD_POLLING)) 1644 break; 1645 1646 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1647 } 1648 if (ntries == 10) { 1649 device_printf(sc->sc_dev, 1650 "%s: cannot read CAM entry at address %02X\n", 1651 __func__, addr); 1652 return (ETIMEDOUT); 1653 } 1654 1655 *val = rsu_read_4(sc, R92S_CAMREAD); 1656 1657 return (0); 1658 } 1659 1660 static void 1661 rsu_cam_write(struct rsu_softc *sc, uint8_t addr, uint32_t data) 1662 { 1663 1664 rsu_write_4(sc, R92S_CAMWRITE, data); 1665 rsu_write_4(sc, R92S_CAMCMD, 1666 R92S_CAMCMD_POLLING | R92S_CAMCMD_WRITE | 1667 SM(R92S_CAMCMD_ADDR, addr)); 1668 } 1669 1670 static int 1671 rsu_key_check(struct rsu_softc *sc, ieee80211_keyix keyix, int is_valid) 1672 { 1673 uint32_t val; 1674 int error, ntries; 1675 1676 for (ntries = 0; ntries < 20; ntries++) { 1677 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1678 1679 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1680 if (error != 0) { 1681 device_printf(sc->sc_dev, 1682 "%s: cannot check key status!\n", __func__); 1683 return (error); 1684 } 1685 if (((val & R92S_CAM_VALID) == 0) ^ is_valid) 1686 break; 1687 } 1688 if (ntries == 20) { 1689 device_printf(sc->sc_dev, 1690 "%s: key %d is %s marked as valid, rejecting request\n", 1691 __func__, keyix, is_valid ? "not" : "still"); 1692 return (EIO); 1693 } 1694 1695 return (0); 1696 } 1697 1698 /* 1699 * Map net80211 cipher to RTL8712 security mode. 1700 */ 1701 static uint8_t 1702 rsu_crypto_mode(struct rsu_softc *sc, u_int cipher, int keylen) 1703 { 1704 switch (cipher) { 1705 case IEEE80211_CIPHER_WEP: 1706 return keylen < 8 ? R92S_KEY_ALGO_WEP40 : R92S_KEY_ALGO_WEP104; 1707 case IEEE80211_CIPHER_TKIP: 1708 return R92S_KEY_ALGO_TKIP; 1709 case IEEE80211_CIPHER_AES_CCM: 1710 return R92S_KEY_ALGO_AES; 1711 default: 1712 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1713 return R92S_KEY_ALGO_INVALID; 1714 } 1715 } 1716 1717 static int 1718 rsu_set_key_group(struct rsu_softc *sc, const struct ieee80211_key *k) 1719 { 1720 struct r92s_fw_cmd_set_key key; 1721 uint8_t algo; 1722 int error; 1723 1724 RSU_ASSERT_LOCKED(sc); 1725 1726 /* Map net80211 cipher to HW crypto algorithm. */ 1727 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1728 if (algo == R92S_KEY_ALGO_INVALID) 1729 return (EINVAL); 1730 1731 memset(&key, 0, sizeof(key)); 1732 key.algo = algo; 1733 key.cam_id = k->wk_keyix; 1734 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1735 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1736 1737 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1738 "%s: keyix %u, group %u, algo %u/%u, flags %04X, len %u, " 1739 "macaddr %s\n", __func__, key.cam_id, key.grpkey, 1740 k->wk_cipher->ic_cipher, key.algo, k->wk_flags, k->wk_keylen, 1741 ether_sprintf(k->wk_macaddr)); 1742 1743 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1744 if (error != 0) { 1745 device_printf(sc->sc_dev, 1746 "%s: cannot send firmware command, error %d\n", 1747 __func__, error); 1748 return (error); 1749 } 1750 1751 return (rsu_key_check(sc, k->wk_keyix, 1)); 1752 } 1753 1754 static int 1755 rsu_set_key_pair(struct rsu_softc *sc, const struct ieee80211_key *k) 1756 { 1757 struct r92s_fw_cmd_set_key_mac key; 1758 uint8_t algo; 1759 int error; 1760 1761 RSU_ASSERT_LOCKED(sc); 1762 1763 if (!sc->sc_running) 1764 return (ESHUTDOWN); 1765 1766 /* Map net80211 cipher to HW crypto algorithm. */ 1767 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1768 if (algo == R92S_KEY_ALGO_INVALID) 1769 return (EINVAL); 1770 1771 memset(&key, 0, sizeof(key)); 1772 key.algo = algo; 1773 memcpy(key.macaddr, k->wk_macaddr, sizeof(key.macaddr)); 1774 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1775 1776 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1777 "%s: keyix %u, algo %u/%u, flags %04X, len %u, macaddr %s\n", 1778 __func__, k->wk_keyix, k->wk_cipher->ic_cipher, key.algo, 1779 k->wk_flags, k->wk_keylen, ether_sprintf(key.macaddr)); 1780 1781 error = rsu_fw_cmd(sc, R92S_CMD_SET_STA_KEY, &key, sizeof(key)); 1782 if (error != 0) { 1783 device_printf(sc->sc_dev, 1784 "%s: cannot send firmware command, error %d\n", 1785 __func__, error); 1786 return (error); 1787 } 1788 1789 return (rsu_key_check(sc, k->wk_keyix, 1)); 1790 } 1791 1792 static int 1793 rsu_reinit_static_keys(struct rsu_softc *sc) 1794 { 1795 int i, error; 1796 1797 for (i = 0; i < nitems(sc->group_keys); i++) { 1798 if (sc->group_keys[i] != NULL) { 1799 error = rsu_set_key_group(sc, sc->group_keys[i]); 1800 if (error != 0) { 1801 device_printf(sc->sc_dev, 1802 "%s: failed to set static key %d, " 1803 "error %d\n", __func__, i, error); 1804 return (error); 1805 } 1806 } 1807 } 1808 1809 return (0); 1810 } 1811 1812 static int 1813 rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix keyix) 1814 { 1815 struct r92s_fw_cmd_set_key key; 1816 uint32_t val; 1817 int error; 1818 1819 RSU_ASSERT_LOCKED(sc); 1820 1821 if (!sc->sc_running) 1822 return (0); 1823 1824 /* check if it was automatically removed by firmware */ 1825 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1826 if (error == 0 && (val & R92S_CAM_VALID) == 0) { 1827 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1828 "%s: key %u does not exist\n", __func__, keyix); 1829 clrbit(sc->keys_bmap, keyix); 1830 return (0); 1831 } 1832 1833 memset(&key, 0, sizeof(key)); 1834 key.cam_id = keyix; 1835 1836 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1837 "%s: removing key %u\n", __func__, key.cam_id); 1838 1839 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1840 if (error != 0) { 1841 device_printf(sc->sc_dev, 1842 "%s: cannot send firmware command, error %d\n", 1843 __func__, error); 1844 goto finish; 1845 } 1846 1847 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(5)); 1848 1849 /* 1850 * Clear 'valid' bit manually (cannot be done via firmware command). 1851 * Used for key check + when firmware command cannot be sent. 1852 */ 1853 finish: 1854 rsu_cam_write(sc, R92S_CAM_CTL0(keyix), 0); 1855 1856 clrbit(sc->keys_bmap, keyix); 1857 1858 return (rsu_key_check(sc, keyix, 0)); 1859 } 1860 1861 static void 1862 rsu_delete_key_pair_cb(void *arg, int pending __unused) 1863 { 1864 struct rsu_softc *sc = arg; 1865 int i; 1866 1867 RSU_DELKEY_BMAP_LOCK(sc); 1868 for (i = IEEE80211_WEP_NKID; i < R92S_CAM_ENTRY_LIMIT; i++) { 1869 if (isset(sc->free_keys_bmap, i)) { 1870 RSU_DELKEY_BMAP_UNLOCK(sc); 1871 1872 RSU_LOCK(sc); 1873 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1874 "%s: calling rsu_delete_key() with keyix = %d\n", 1875 __func__, i); 1876 (void) rsu_delete_key(sc, i); 1877 RSU_UNLOCK(sc); 1878 1879 RSU_DELKEY_BMAP_LOCK(sc); 1880 clrbit(sc->free_keys_bmap, i); 1881 1882 /* bmap can be changed */ 1883 i = IEEE80211_WEP_NKID - 1; 1884 continue; 1885 } 1886 } 1887 RSU_DELKEY_BMAP_UNLOCK(sc); 1888 } 1889 1890 static int 1891 rsu_site_survey(struct rsu_softc *sc, struct ieee80211_scan_ssid *ssid) 1892 { 1893 struct r92s_fw_cmd_sitesurvey cmd; 1894 1895 RSU_ASSERT_LOCKED(sc); 1896 1897 memset(&cmd, 0, sizeof(cmd)); 1898 /* TODO: passive channels? */ 1899 if (sc->sc_active_scan) 1900 cmd.active = htole32(1); 1901 cmd.limit = htole32(48); 1902 1903 if (ssid != NULL) { 1904 sc->sc_extra_scan = 1; 1905 cmd.ssidlen = htole32(ssid->len); 1906 memcpy(cmd.ssid, ssid->ssid, ssid->len); 1907 } 1908 #ifdef USB_DEBUG 1909 if (rsu_debug & (RSU_DEBUG_SCAN | RSU_DEBUG_FWCMD)) { 1910 device_printf(sc->sc_dev, 1911 "sending site survey command, active %d", 1912 le32toh(cmd.active)); 1913 if (ssid != NULL) { 1914 printf(", ssid: "); 1915 ieee80211_print_essid(cmd.ssid, le32toh(cmd.ssidlen)); 1916 } 1917 printf("\n"); 1918 } 1919 #endif 1920 return (rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd))); 1921 } 1922 1923 static int 1924 rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1925 { 1926 struct ieee80211com *ic = &sc->sc_ic; 1927 struct ieee80211vap *vap = ni->ni_vap; 1928 struct ndis_wlan_bssid_ex *bss; 1929 struct ndis_802_11_fixed_ies *fixed; 1930 struct r92s_fw_cmd_auth auth; 1931 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1932 uint8_t *frm; 1933 uint8_t opmode; 1934 int error; 1935 1936 RSU_ASSERT_LOCKED(sc); 1937 1938 /* Let the FW decide the opmode based on the capinfo field. */ 1939 opmode = NDIS802_11AUTOUNKNOWN; 1940 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1941 "%s: setting operating mode to %d\n", 1942 __func__, opmode); 1943 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1944 if (error != 0) 1945 return (error); 1946 1947 memset(&auth, 0, sizeof(auth)); 1948 if (vap->iv_flags & IEEE80211_F_WPA) { 1949 auth.mode = R92S_AUTHMODE_WPA; 1950 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1951 } else 1952 auth.mode = R92S_AUTHMODE_OPEN; 1953 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1954 "%s: setting auth mode to %d\n", 1955 __func__, auth.mode); 1956 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1957 if (error != 0) 1958 return (error); 1959 1960 memset(buf, 0, sizeof(buf)); 1961 bss = (struct ndis_wlan_bssid_ex *)buf; 1962 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1963 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1964 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1965 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1966 bss->privacy = htole32(1); 1967 bss->rssi = htole32(ni->ni_avgrssi); 1968 if (ic->ic_curmode == IEEE80211_MODE_11B) 1969 bss->networktype = htole32(NDIS802_11DS); 1970 else 1971 bss->networktype = htole32(NDIS802_11OFDM24); 1972 bss->config.len = htole32(sizeof(bss->config)); 1973 bss->config.bintval = htole32(ni->ni_intval); 1974 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1975 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1976 /* XXX verify how this is supposed to look! */ 1977 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1978 ni->ni_rates.rs_nrates); 1979 /* Write the fixed fields of the beacon frame. */ 1980 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1981 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1982 fixed->bintval = htole16(ni->ni_intval); 1983 fixed->capabilities = htole16(ni->ni_capinfo); 1984 /* Write IEs to be included in the association request. */ 1985 frm = (uint8_t *)&fixed[1]; 1986 frm = ieee80211_add_rsn(frm, vap); 1987 frm = ieee80211_add_wpa(frm, vap); 1988 frm = ieee80211_add_qos(frm, ni); 1989 if ((ic->ic_flags & IEEE80211_F_WME) && 1990 (ni->ni_ies.wme_ie != NULL)) 1991 frm = ieee80211_add_wme_info(frm, &ic->ic_wme); 1992 if (ni->ni_flags & IEEE80211_NODE_HT) { 1993 frm = ieee80211_add_htcap(frm, ni); 1994 frm = ieee80211_add_htinfo(frm, ni); 1995 } 1996 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1997 bss->len = htole32(((frm - buf) + 3) & ~3); 1998 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 1999 "%s: sending join bss command to %s chan %d\n", 2000 __func__, 2001 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 2002 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 2003 } 2004 2005 static int 2006 rsu_disconnect(struct rsu_softc *sc) 2007 { 2008 uint32_t zero = 0; /* :-) */ 2009 2010 /* Disassociate from our current BSS. */ 2011 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2012 "%s: sending disconnect command\n", __func__); 2013 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 2014 } 2015 2016 /* 2017 * Map the hardware provided RSSI value to a signal level. 2018 * For the most part it's just something we divide by and cap 2019 * so it doesn't overflow the representation by net80211. 2020 */ 2021 static int 2022 rsu_hwrssi_to_rssi(struct rsu_softc *sc, int hw_rssi) 2023 { 2024 int v; 2025 2026 if (hw_rssi == 0) 2027 return (0); 2028 v = hw_rssi >> 4; 2029 if (v > 80) 2030 v = 80; 2031 return (v); 2032 } 2033 2034 static void 2035 rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 2036 { 2037 struct ieee80211com *ic = &sc->sc_ic; 2038 struct ieee80211_frame *wh; 2039 struct ndis_wlan_bssid_ex *bss; 2040 struct ieee80211_rx_stats rxs; 2041 struct mbuf *m; 2042 int pktlen; 2043 2044 if (__predict_false(len < sizeof(*bss))) 2045 return; 2046 bss = (struct ndis_wlan_bssid_ex *)buf; 2047 if (__predict_false(len < sizeof(*bss) + le32toh(bss->ieslen))) 2048 return; 2049 2050 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2051 "%s: found BSS %s: len=%d chan=%d inframode=%d " 2052 "networktype=%d privacy=%d, RSSI=%d\n", 2053 __func__, 2054 ether_sprintf(bss->macaddr), le32toh(bss->len), 2055 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 2056 le32toh(bss->networktype), le32toh(bss->privacy), 2057 le32toh(bss->rssi)); 2058 2059 /* Build a fake beacon frame to let net80211 do all the parsing. */ 2060 /* XXX TODO: just call the new scan API methods! */ 2061 pktlen = sizeof(*wh) + le32toh(bss->ieslen); 2062 if (__predict_false(pktlen > MCLBYTES)) 2063 return; 2064 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2065 if (__predict_false(m == NULL)) 2066 return; 2067 wh = mtod(m, struct ieee80211_frame *); 2068 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2069 IEEE80211_FC0_SUBTYPE_BEACON; 2070 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2071 USETW(wh->i_dur, 0); 2072 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 2073 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 2074 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 2075 *(uint16_t *)wh->i_seq = 0; 2076 memcpy(&wh[1], (uint8_t *)&bss[1], le32toh(bss->ieslen)); 2077 2078 /* Finalize mbuf. */ 2079 m->m_pkthdr.len = m->m_len = pktlen; 2080 2081 /* Set channel flags for input path */ 2082 bzero(&rxs, sizeof(rxs)); 2083 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 2084 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2085 rxs.c_ieee = le32toh(bss->config.dsconfig); 2086 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 2087 /* This is a number from 0..100; so let's just divide it down a bit */ 2088 rxs.c_rssi = le32toh(bss->rssi) / 2; 2089 rxs.c_nf = -96; 2090 if (ieee80211_add_rx_params(m, &rxs) == 0) 2091 return; 2092 2093 /* XXX avoid a LOR */ 2094 RSU_UNLOCK(sc); 2095 ieee80211_input_mimo_all(ic, m); 2096 RSU_LOCK(sc); 2097 } 2098 2099 static void 2100 rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 2101 { 2102 struct ieee80211com *ic = &sc->sc_ic; 2103 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2104 struct ieee80211_node *ni = vap->iv_bss; 2105 struct r92s_event_join_bss *rsp; 2106 uint32_t tmp; 2107 int res; 2108 2109 if (__predict_false(len < sizeof(*rsp))) 2110 return; 2111 rsp = (struct r92s_event_join_bss *)buf; 2112 res = (int)le32toh(rsp->join_res); 2113 2114 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2115 "%s: Rx join BSS event len=%d res=%d\n", 2116 __func__, len, res); 2117 2118 /* 2119 * XXX Don't do this; there's likely a better way to tell 2120 * the caller we failed. 2121 */ 2122 if (res <= 0) { 2123 RSU_UNLOCK(sc); 2124 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2125 RSU_LOCK(sc); 2126 return; 2127 } 2128 2129 tmp = le32toh(rsp->associd); 2130 if (tmp >= vap->iv_max_aid) { 2131 RSU_DPRINTF(sc, RSU_DEBUG_ANY, "Assoc ID overflow\n"); 2132 tmp = 1; 2133 } 2134 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2135 "%s: associated with %s associd=%d\n", 2136 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 2137 /* XXX is this required? What's the top two bits for again? */ 2138 ni->ni_associd = tmp | 0xc000; 2139 2140 /* Refresh Rx filter (was changed by firmware). */ 2141 sc->sc_vap_is_running = 1; 2142 rsu_rxfilter_refresh(sc); 2143 2144 RSU_UNLOCK(sc); 2145 ieee80211_new_state(vap, IEEE80211_S_RUN, 2146 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 2147 RSU_LOCK(sc); 2148 } 2149 2150 static void 2151 rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 2152 { 2153 struct ieee80211com *ic = &sc->sc_ic; 2154 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2155 struct r92s_add_ba_event *ba = (void *) buf; 2156 struct ieee80211_node *ni; 2157 2158 if (len < sizeof(*ba)) { 2159 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 2160 return; 2161 } 2162 2163 if (vap == NULL) 2164 return; 2165 2166 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: mac=%s, tid=%d, ssn=%d\n", 2167 __func__, 2168 ether_sprintf(ba->mac_addr), 2169 (int) ba->tid, 2170 (int) le16toh(ba->ssn)); 2171 2172 /* XXX do node lookup; this is STA specific */ 2173 2174 ni = ieee80211_ref_node(vap->iv_bss); 2175 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 2176 ieee80211_free_node(ni); 2177 } 2178 2179 static void 2180 rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 2181 { 2182 struct ieee80211com *ic = &sc->sc_ic; 2183 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2184 2185 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2186 "%s: Rx event code=%d len=%d\n", __func__, code, len); 2187 switch (code) { 2188 case R92S_EVT_SURVEY: 2189 rsu_event_survey(sc, buf, len); 2190 break; 2191 case R92S_EVT_SURVEY_DONE: 2192 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2193 "%s: %s scan done, found %d BSS\n", 2194 __func__, sc->sc_extra_scan ? "direct" : "broadcast", 2195 le32toh(*(uint32_t *)buf)); 2196 if (sc->sc_extra_scan == 1) { 2197 /* Send broadcast probe request. */ 2198 sc->sc_extra_scan = 0; 2199 if (vap != NULL && rsu_site_survey(sc, NULL) != 0) { 2200 RSU_UNLOCK(sc); 2201 ieee80211_cancel_scan(vap); 2202 RSU_LOCK(sc); 2203 } 2204 break; 2205 } 2206 if (vap != NULL) { 2207 RSU_UNLOCK(sc); 2208 ieee80211_scan_done(vap); 2209 RSU_LOCK(sc); 2210 } 2211 break; 2212 case R92S_EVT_JOIN_BSS: 2213 if (vap->iv_state == IEEE80211_S_AUTH) 2214 rsu_event_join_bss(sc, buf, len); 2215 break; 2216 case R92S_EVT_DEL_STA: 2217 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 2218 "%s: disassociated from %s\n", __func__, 2219 ether_sprintf(buf)); 2220 if (vap->iv_state == IEEE80211_S_RUN && 2221 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 2222 RSU_UNLOCK(sc); 2223 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2224 RSU_LOCK(sc); 2225 } 2226 break; 2227 case R92S_EVT_WPS_PBC: 2228 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2229 "%s: WPS PBC pushed.\n", __func__); 2230 break; 2231 case R92S_EVT_FWDBG: 2232 buf[60] = '\0'; 2233 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 2234 break; 2235 case R92S_EVT_ADDBA_REQ_REPORT: 2236 rsu_event_addba_req_report(sc, buf, len); 2237 break; 2238 default: 2239 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 2240 break; 2241 } 2242 } 2243 2244 static void 2245 rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 2246 { 2247 struct r92s_fw_cmd_hdr *cmd; 2248 int cmdsz; 2249 2250 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 2251 2252 /* Skip Rx status. */ 2253 buf += sizeof(struct r92s_rx_stat); 2254 len -= sizeof(struct r92s_rx_stat); 2255 2256 /* Process all events. */ 2257 for (;;) { 2258 /* Check that command header fits. */ 2259 if (__predict_false(len < sizeof(*cmd))) 2260 break; 2261 cmd = (struct r92s_fw_cmd_hdr *)buf; 2262 /* Check that command payload fits. */ 2263 cmdsz = le16toh(cmd->len); 2264 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 2265 break; 2266 2267 /* Process firmware event. */ 2268 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 2269 2270 if (!(cmd->seq & R92S_FW_CMD_MORE)) 2271 break; 2272 buf += sizeof(*cmd) + cmdsz; 2273 len -= sizeof(*cmd) + cmdsz; 2274 } 2275 } 2276 2277 static int8_t 2278 rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 2279 { 2280 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 2281 struct r92s_rx_phystat *phy; 2282 struct r92s_rx_cck *cck; 2283 uint8_t rpt; 2284 int8_t rssi; 2285 2286 if (rate <= 3) { 2287 cck = (struct r92s_rx_cck *)physt; 2288 rpt = (cck->agc_rpt >> 6) & 0x3; 2289 rssi = cck->agc_rpt & 0x3e; 2290 rssi = cckoff[rpt] - rssi; 2291 } else { /* OFDM/HT. */ 2292 phy = (struct r92s_rx_phystat *)physt; 2293 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 2294 } 2295 return (rssi); 2296 } 2297 2298 static struct mbuf * 2299 rsu_rx_copy_to_mbuf(struct rsu_softc *sc, struct r92s_rx_stat *stat, 2300 int totlen) 2301 { 2302 struct ieee80211com *ic = &sc->sc_ic; 2303 struct mbuf *m; 2304 uint32_t rxdw0; 2305 int pktlen; 2306 2307 rxdw0 = le32toh(stat->rxdw0); 2308 if (__predict_false(rxdw0 & (R92S_RXDW0_CRCERR | R92S_RXDW0_ICVERR))) { 2309 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2310 "%s: RX flags error (%s)\n", __func__, 2311 rxdw0 & R92S_RXDW0_CRCERR ? "CRC" : "ICV"); 2312 goto fail; 2313 } 2314 2315 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2316 if (__predict_false(pktlen < sizeof (struct ieee80211_frame_ack))) { 2317 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2318 "%s: frame is too short: %d\n", __func__, pktlen); 2319 goto fail; 2320 } 2321 2322 m = m_get2(totlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2323 if (__predict_false(m == NULL)) { 2324 device_printf(sc->sc_dev, 2325 "%s: could not allocate RX mbuf, totlen %d\n", 2326 __func__, totlen); 2327 goto fail; 2328 } 2329 2330 /* Finalize mbuf. */ 2331 memcpy(mtod(m, uint8_t *), (uint8_t *)stat, totlen); 2332 m->m_pkthdr.len = m->m_len = totlen; 2333 2334 return (m); 2335 fail: 2336 counter_u64_add(ic->ic_ierrors, 1); 2337 return (NULL); 2338 } 2339 2340 static uint32_t 2341 rsu_get_tsf_low(struct rsu_softc *sc) 2342 { 2343 return (rsu_read_4(sc, R92S_TSFTR)); 2344 } 2345 2346 static uint32_t 2347 rsu_get_tsf_high(struct rsu_softc *sc) 2348 { 2349 return (rsu_read_4(sc, R92S_TSFTR + 4)); 2350 } 2351 2352 static struct ieee80211_node * 2353 rsu_rx_frame(struct rsu_softc *sc, struct mbuf *m) 2354 { 2355 struct ieee80211com *ic = &sc->sc_ic; 2356 struct ieee80211_frame_min *wh; 2357 struct ieee80211_rx_stats rxs; 2358 struct r92s_rx_stat *stat; 2359 uint32_t rxdw0, rxdw3; 2360 uint8_t cipher, rate; 2361 int infosz; 2362 int rssi; 2363 2364 stat = mtod(m, struct r92s_rx_stat *); 2365 rxdw0 = le32toh(stat->rxdw0); 2366 rxdw3 = le32toh(stat->rxdw3); 2367 2368 rate = MS(rxdw3, R92S_RXDW3_RATE); 2369 cipher = MS(rxdw0, R92S_RXDW0_CIPHER); 2370 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2371 2372 /* Get RSSI from PHY status descriptor if present. */ 2373 if (infosz != 0 && (rxdw0 & R92S_RXDW0_PHYST)) 2374 rssi = rsu_get_rssi(sc, rate, &stat[1]); 2375 else { 2376 /* Cheat and get the last calibrated RSSI */ 2377 rssi = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 2378 } 2379 2380 if (ieee80211_radiotap_active(ic)) { 2381 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 2382 2383 /* Map HW rate index to 802.11 rate. */ 2384 tap->wr_flags = 0; /* TODO */ 2385 tap->wr_tsft = rsu_get_tsf_high(sc); 2386 if (le32toh(stat->tsf_low) > rsu_get_tsf_low(sc)) 2387 tap->wr_tsft--; 2388 tap->wr_tsft = (uint64_t)htole32(tap->wr_tsft) << 32; 2389 tap->wr_tsft += stat->tsf_low; 2390 2391 if (rate < 12) { 2392 switch (rate) { 2393 /* CCK. */ 2394 case 0: tap->wr_rate = 2; break; 2395 case 1: tap->wr_rate = 4; break; 2396 case 2: tap->wr_rate = 11; break; 2397 case 3: tap->wr_rate = 22; break; 2398 /* OFDM. */ 2399 case 4: tap->wr_rate = 12; break; 2400 case 5: tap->wr_rate = 18; break; 2401 case 6: tap->wr_rate = 24; break; 2402 case 7: tap->wr_rate = 36; break; 2403 case 8: tap->wr_rate = 48; break; 2404 case 9: tap->wr_rate = 72; break; 2405 case 10: tap->wr_rate = 96; break; 2406 case 11: tap->wr_rate = 108; break; 2407 } 2408 } else { /* MCS0~15. */ 2409 /* Bit 7 set means HT MCS instead of rate. */ 2410 tap->wr_rate = 0x80 | (rate - 12); 2411 } 2412 2413 tap->wr_dbm_antsignal = rssi; 2414 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 2415 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 2416 }; 2417 2418 /* Hardware does Rx TCP checksum offload. */ 2419 /* 2420 * This flag can be set for some other 2421 * (e.g., EAPOL) frame types, so don't rely on it. 2422 */ 2423 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 2424 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2425 "%s: TCP/IP checksums: %schecked / %schecked\n", 2426 __func__, 2427 (rxdw3 & R92S_RXDW3_TCPCHKRPT) ? "" : "not ", 2428 (rxdw3 & R92S_RXDW3_IPCHKRPT) ? "" : "not "); 2429 2430 /* 2431 * 'IP header checksum valid' bit will not be set if 2432 * the frame was not checked / has incorrect checksum / 2433 * does not have checksum (IPv6). 2434 * 2435 * NB: if DF bit is not set then frame will not be checked. 2436 */ 2437 if (rxdw3 & R92S_RXDW3_IPCHKRPT) { 2438 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2439 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2440 } 2441 2442 /* 2443 * This is independent of the above check. 2444 */ 2445 if (rxdw3 & R92S_RXDW3_TCPCHKRPT) { 2446 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 2447 m->m_pkthdr.csum_flags |= CSUM_PSEUDO_HDR; 2448 m->m_pkthdr.csum_data = 0xffff; 2449 } 2450 } 2451 2452 /* RX flags */ 2453 2454 /* Set channel flags for input path */ 2455 bzero(&rxs, sizeof(rxs)); 2456 2457 /* normal RSSI */ 2458 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2459 rxs.c_rssi = rssi; 2460 rxs.c_nf = -96; 2461 2462 /* Rate */ 2463 if (!(rxdw3 & R92S_RXDW3_HTC)) { 2464 switch (rate) { 2465 /* CCK. */ 2466 case 0: 2467 rxs.c_rate = 2; 2468 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2469 break; 2470 case 1: 2471 rxs.c_rate = 4; 2472 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2473 break; 2474 case 2: 2475 rxs.c_rate = 11; 2476 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2477 break; 2478 case 3: 2479 rxs.c_rate = 22; 2480 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2481 break; 2482 /* OFDM. */ 2483 case 4: 2484 rxs.c_rate = 12; 2485 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2486 break; 2487 case 5: 2488 rxs.c_rate = 18; 2489 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2490 break; 2491 case 6: 2492 rxs.c_rate = 24; 2493 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2494 break; 2495 case 7: 2496 rxs.c_rate = 36; 2497 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2498 break; 2499 case 8: 2500 rxs.c_rate = 48; 2501 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2502 break; 2503 case 9: 2504 rxs.c_rate = 72; 2505 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2506 break; 2507 case 10: 2508 rxs.c_rate = 96; 2509 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2510 break; 2511 case 11: 2512 rxs.c_rate = 108; 2513 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2514 break; 2515 } 2516 } else if (rate >= 12) { /* MCS0~15. */ 2517 /* Bit 7 set means HT MCS instead of rate. */ 2518 rxs.c_rate = (rate - 12); 2519 rxs.c_pktflags |= IEEE80211_RX_F_HT; 2520 } 2521 2522 (void) ieee80211_add_rx_params(m, &rxs); 2523 2524 /* Drop descriptor. */ 2525 m_adj(m, sizeof(*stat) + infosz); 2526 wh = mtod(m, struct ieee80211_frame_min *); 2527 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 2528 cipher != R92S_KEY_ALGO_NONE) { 2529 m->m_flags |= M_WEP; 2530 } 2531 2532 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2533 "%s: Rx frame len %d, rate %d, infosz %d\n", 2534 __func__, m->m_len, rate, infosz); 2535 2536 if (m->m_len >= sizeof(*wh)) 2537 return (ieee80211_find_rxnode(ic, wh)); 2538 2539 return (NULL); 2540 } 2541 2542 static struct mbuf * 2543 rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 2544 { 2545 struct r92s_rx_stat *stat; 2546 uint32_t rxdw0; 2547 int totlen, pktlen, infosz, npkts; 2548 struct mbuf *m, *m0 = NULL, *prevm = NULL; 2549 2550 /* 2551 * don't pass packets to the ieee80211 framework if the driver isn't 2552 * RUNNING. 2553 */ 2554 if (!sc->sc_running) 2555 return (NULL); 2556 2557 /* Get the number of encapsulated frames. */ 2558 stat = (struct r92s_rx_stat *)buf; 2559 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 2560 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2561 "%s: Rx %d frames in one chunk\n", __func__, npkts); 2562 2563 /* Process all of them. */ 2564 while (npkts-- > 0) { 2565 if (__predict_false(len < sizeof(*stat))) 2566 break; 2567 stat = (struct r92s_rx_stat *)buf; 2568 rxdw0 = le32toh(stat->rxdw0); 2569 2570 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2571 if (__predict_false(pktlen == 0)) 2572 break; 2573 2574 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2575 2576 /* Make sure everything fits in xfer. */ 2577 totlen = sizeof(*stat) + infosz + pktlen; 2578 if (__predict_false(totlen > len)) 2579 break; 2580 2581 /* Process 802.11 frame. */ 2582 m = rsu_rx_copy_to_mbuf(sc, stat, totlen); 2583 if (m0 == NULL) 2584 m0 = m; 2585 if (prevm == NULL) 2586 prevm = m; 2587 else { 2588 prevm->m_next = m; 2589 prevm = m; 2590 } 2591 /* Next chunk is 128-byte aligned. */ 2592 totlen = (totlen + 127) & ~127; 2593 buf += totlen; 2594 len -= totlen; 2595 } 2596 2597 return (m0); 2598 } 2599 2600 static struct mbuf * 2601 rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data) 2602 { 2603 struct rsu_softc *sc = data->sc; 2604 struct ieee80211com *ic = &sc->sc_ic; 2605 struct r92s_rx_stat *stat; 2606 int len; 2607 2608 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 2609 2610 if (__predict_false(len < sizeof(*stat))) { 2611 RSU_DPRINTF(sc, RSU_DEBUG_RX, "xfer too short %d\n", len); 2612 counter_u64_add(ic->ic_ierrors, 1); 2613 return (NULL); 2614 } 2615 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 2616 stat = (struct r92s_rx_stat *)data->buf; 2617 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 2618 rsu_rx_multi_event(sc, data->buf, len); 2619 /* No packets to process. */ 2620 return (NULL); 2621 } else 2622 return (rsu_rx_multi_frame(sc, data->buf, len)); 2623 } 2624 2625 static void 2626 rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 2627 { 2628 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2629 struct ieee80211com *ic = &sc->sc_ic; 2630 struct ieee80211_node *ni; 2631 struct mbuf *m = NULL, *next; 2632 struct rsu_data *data; 2633 2634 RSU_ASSERT_LOCKED(sc); 2635 2636 switch (USB_GET_STATE(xfer)) { 2637 case USB_ST_TRANSFERRED: 2638 data = STAILQ_FIRST(&sc->sc_rx_active); 2639 if (data == NULL) 2640 goto tr_setup; 2641 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2642 m = rsu_rxeof(xfer, data); 2643 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2644 /* FALLTHROUGH */ 2645 case USB_ST_SETUP: 2646 tr_setup: 2647 data = STAILQ_FIRST(&sc->sc_rx_inactive); 2648 if (data == NULL) { 2649 KASSERT(m == NULL, ("mbuf isn't NULL")); 2650 return; 2651 } 2652 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 2653 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 2654 usbd_xfer_set_frame_data(xfer, 0, data->buf, 2655 usbd_xfer_max_len(xfer)); 2656 usbd_transfer_submit(xfer); 2657 /* 2658 * To avoid LOR we should unlock our private mutex here to call 2659 * ieee80211_input() because here is at the end of a USB 2660 * callback and safe to unlock. 2661 */ 2662 while (m != NULL) { 2663 next = m->m_next; 2664 m->m_next = NULL; 2665 2666 ni = rsu_rx_frame(sc, m); 2667 RSU_UNLOCK(sc); 2668 2669 if (ni != NULL) { 2670 if (ni->ni_flags & IEEE80211_NODE_HT) 2671 m->m_flags |= M_AMPDU; 2672 (void)ieee80211_input_mimo(ni, m); 2673 ieee80211_free_node(ni); 2674 } else 2675 (void)ieee80211_input_mimo_all(ic, m); 2676 2677 RSU_LOCK(sc); 2678 m = next; 2679 } 2680 break; 2681 default: 2682 /* needs it to the inactive queue due to a error. */ 2683 data = STAILQ_FIRST(&sc->sc_rx_active); 2684 if (data != NULL) { 2685 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2686 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2687 } 2688 if (error != USB_ERR_CANCELLED) { 2689 usbd_xfer_set_stall(xfer); 2690 counter_u64_add(ic->ic_ierrors, 1); 2691 goto tr_setup; 2692 } 2693 break; 2694 } 2695 2696 } 2697 2698 static void 2699 rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 2700 { 2701 #ifdef USB_DEBUG 2702 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2703 #endif 2704 2705 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 2706 __func__, 2707 data); 2708 2709 if (data->m) { 2710 /* XXX status? */ 2711 ieee80211_tx_complete(data->ni, data->m, 0); 2712 data->m = NULL; 2713 data->ni = NULL; 2714 } 2715 } 2716 2717 static void 2718 rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 2719 uint8_t which) 2720 { 2721 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2722 struct ieee80211com *ic = &sc->sc_ic; 2723 struct rsu_data *data; 2724 2725 RSU_ASSERT_LOCKED(sc); 2726 2727 switch (USB_GET_STATE(xfer)) { 2728 case USB_ST_TRANSFERRED: 2729 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2730 if (data == NULL) 2731 goto tr_setup; 2732 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 2733 __func__, data); 2734 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2735 rsu_txeof(xfer, data); 2736 rsu_freebuf(sc, data); 2737 /* FALLTHROUGH */ 2738 case USB_ST_SETUP: 2739 tr_setup: 2740 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 2741 if (data == NULL) { 2742 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2743 "%s: empty pending queue sc %p\n", __func__, sc); 2744 return; 2745 } 2746 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 2747 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 2748 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 2749 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2750 "%s: submitting transfer %p\n", 2751 __func__, 2752 data); 2753 usbd_transfer_submit(xfer); 2754 break; 2755 default: 2756 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2757 if (data != NULL) { 2758 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2759 rsu_txeof(xfer, data); 2760 rsu_freebuf(sc, data); 2761 } 2762 counter_u64_add(ic->ic_oerrors, 1); 2763 2764 if (error != USB_ERR_CANCELLED) { 2765 usbd_xfer_set_stall(xfer); 2766 goto tr_setup; 2767 } 2768 break; 2769 } 2770 2771 /* 2772 * XXX TODO: if the queue is low, flush out FF TX frames. 2773 * Remember to unlock the driver for now; net80211 doesn't 2774 * defer it for us. 2775 */ 2776 } 2777 2778 static void 2779 rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 2780 { 2781 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2782 2783 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 2784 2785 /* This kicks the TX taskqueue */ 2786 rsu_start(sc); 2787 } 2788 2789 static void 2790 rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 2791 { 2792 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2793 2794 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 2795 2796 /* This kicks the TX taskqueue */ 2797 rsu_start(sc); 2798 } 2799 2800 static void 2801 rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2802 { 2803 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2804 2805 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2806 2807 /* This kicks the TX taskqueue */ 2808 rsu_start(sc); 2809 } 2810 2811 /* 2812 * Transmit the given frame. 2813 * 2814 * This doesn't free the node or mbuf upon failure. 2815 */ 2816 static int 2817 rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2818 struct mbuf *m0, struct rsu_data *data) 2819 { 2820 struct ieee80211com *ic = &sc->sc_ic; 2821 struct ieee80211vap *vap = ni->ni_vap; 2822 struct ieee80211_frame *wh; 2823 struct ieee80211_key *k = NULL; 2824 struct r92s_tx_desc *txd; 2825 uint8_t type, cipher; 2826 int prio = 0; 2827 uint8_t which; 2828 int hasqos; 2829 int xferlen; 2830 int qid; 2831 2832 RSU_ASSERT_LOCKED(sc); 2833 2834 wh = mtod(m0, struct ieee80211_frame *); 2835 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2836 2837 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2838 __func__, data, m0); 2839 2840 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2841 k = ieee80211_crypto_encap(ni, m0); 2842 if (k == NULL) { 2843 device_printf(sc->sc_dev, 2844 "ieee80211_crypto_encap returns NULL.\n"); 2845 /* XXX we don't expect the fragmented frames */ 2846 return (ENOBUFS); 2847 } 2848 wh = mtod(m0, struct ieee80211_frame *); 2849 } 2850 /* If we have QoS then use it */ 2851 /* XXX TODO: mbuf WME/PRI versus TID? */ 2852 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2853 /* Has QoS */ 2854 prio = M_WME_GETAC(m0); 2855 which = rsu_wme_ac_xfer_map[prio]; 2856 hasqos = 1; 2857 } else { 2858 /* Non-QoS TID */ 2859 /* XXX TODO: tid=0 for non-qos TID? */ 2860 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2861 hasqos = 0; 2862 prio = 0; 2863 } 2864 2865 qid = rsu_ac2qid[prio]; 2866 #if 0 2867 switch (type) { 2868 case IEEE80211_FC0_TYPE_CTL: 2869 case IEEE80211_FC0_TYPE_MGT: 2870 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2871 break; 2872 default: 2873 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2874 break; 2875 } 2876 hasqos = 0; 2877 #endif 2878 2879 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2880 __func__, 2881 prio, 2882 which, 2883 hasqos); 2884 2885 /* Fill Tx descriptor. */ 2886 txd = (struct r92s_tx_desc *)data->buf; 2887 memset(txd, 0, sizeof(*txd)); 2888 2889 txd->txdw0 |= htole32( 2890 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2891 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2892 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2893 2894 txd->txdw1 |= htole32( 2895 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2896 if (!hasqos) 2897 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2898 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWENCRYPT)) { 2899 switch (k->wk_cipher->ic_cipher) { 2900 case IEEE80211_CIPHER_WEP: 2901 cipher = R92S_TXDW1_CIPHER_WEP; 2902 break; 2903 case IEEE80211_CIPHER_TKIP: 2904 cipher = R92S_TXDW1_CIPHER_TKIP; 2905 break; 2906 case IEEE80211_CIPHER_AES_CCM: 2907 cipher = R92S_TXDW1_CIPHER_AES; 2908 break; 2909 default: 2910 cipher = R92S_TXDW1_CIPHER_NONE; 2911 } 2912 txd->txdw1 |= htole32( 2913 SM(R92S_TXDW1_CIPHER, cipher) | 2914 SM(R92S_TXDW1_KEYIDX, k->wk_keyix)); 2915 } 2916 /* XXX todo: set AGGEN bit if appropriate? */ 2917 txd->txdw2 |= htole32(R92S_TXDW2_BK); 2918 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 2919 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2920 /* 2921 * Firmware will use and increment the sequence number for the 2922 * specified priority. 2923 */ 2924 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2925 2926 if (ieee80211_radiotap_active_vap(vap)) { 2927 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2928 2929 tap->wt_flags = 0; 2930 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 2931 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 2932 ieee80211_radiotap_tx(vap, m0); 2933 } 2934 2935 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2936 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2937 2938 data->buflen = xferlen; 2939 data->ni = ni; 2940 data->m = m0; 2941 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2942 2943 /* start transfer, if any */ 2944 usbd_transfer_start(sc->sc_xfer[which]); 2945 return (0); 2946 } 2947 2948 static int 2949 rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2950 { 2951 struct rsu_softc *sc = ic->ic_softc; 2952 int error; 2953 2954 RSU_LOCK(sc); 2955 if (!sc->sc_running) { 2956 RSU_UNLOCK(sc); 2957 return (ENXIO); 2958 } 2959 2960 /* 2961 * XXX TODO: ensure that we treat 'm' as a list of frames 2962 * to transmit! 2963 */ 2964 error = mbufq_enqueue(&sc->sc_snd, m); 2965 if (error) { 2966 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2967 "%s: mbufq_enable: failed (%d)\n", 2968 __func__, 2969 error); 2970 RSU_UNLOCK(sc); 2971 return (error); 2972 } 2973 RSU_UNLOCK(sc); 2974 2975 /* This kicks the TX taskqueue */ 2976 rsu_start(sc); 2977 2978 return (0); 2979 } 2980 2981 static void 2982 rsu_drain_mbufq(struct rsu_softc *sc) 2983 { 2984 struct mbuf *m; 2985 struct ieee80211_node *ni; 2986 2987 RSU_ASSERT_LOCKED(sc); 2988 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2989 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2990 m->m_pkthdr.rcvif = NULL; 2991 ieee80211_free_node(ni); 2992 m_freem(m); 2993 } 2994 } 2995 2996 static void 2997 _rsu_start(struct rsu_softc *sc) 2998 { 2999 struct ieee80211_node *ni; 3000 struct rsu_data *bf; 3001 struct mbuf *m; 3002 3003 RSU_ASSERT_LOCKED(sc); 3004 3005 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 3006 bf = rsu_getbuf(sc); 3007 if (bf == NULL) { 3008 RSU_DPRINTF(sc, RSU_DEBUG_TX, 3009 "%s: failed to get buffer\n", __func__); 3010 mbufq_prepend(&sc->sc_snd, m); 3011 break; 3012 } 3013 3014 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3015 m->m_pkthdr.rcvif = NULL; 3016 3017 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3018 RSU_DPRINTF(sc, RSU_DEBUG_TX, 3019 "%s: failed to transmit\n", __func__); 3020 if_inc_counter(ni->ni_vap->iv_ifp, 3021 IFCOUNTER_OERRORS, 1); 3022 rsu_freebuf(sc, bf); 3023 ieee80211_free_node(ni); 3024 m_freem(m); 3025 break; 3026 } 3027 } 3028 } 3029 3030 static void 3031 rsu_start(struct rsu_softc *sc) 3032 { 3033 3034 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 3035 } 3036 3037 static int 3038 rsu_ioctl_net(struct ieee80211com *ic, u_long cmd, void *data) 3039 { 3040 struct rsu_softc *sc = ic->ic_softc; 3041 struct ifreq *ifr = (struct ifreq *)data; 3042 int error; 3043 3044 error = 0; 3045 switch (cmd) { 3046 case SIOCSIFCAP: 3047 { 3048 struct ieee80211vap *vap; 3049 int rxmask; 3050 3051 rxmask = ifr->ifr_reqcap & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3052 3053 RSU_LOCK(sc); 3054 /* Both RXCSUM bits must be set (or unset). */ 3055 if (sc->sc_rx_checksum_enable && 3056 rxmask != (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { 3057 rxmask = 0; 3058 sc->sc_rx_checksum_enable = 0; 3059 rsu_rxfilter_set(sc, R92S_RCR_TCP_OFFLD_EN, 0); 3060 } else if (!sc->sc_rx_checksum_enable && rxmask != 0) { 3061 rxmask = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 3062 sc->sc_rx_checksum_enable = 1; 3063 rsu_rxfilter_set(sc, 0, R92S_RCR_TCP_OFFLD_EN); 3064 } else { 3065 /* Nothing to do. */ 3066 RSU_UNLOCK(sc); 3067 break; 3068 } 3069 RSU_UNLOCK(sc); 3070 3071 IEEE80211_LOCK(ic); /* XXX */ 3072 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 3073 struct ifnet *ifp = vap->iv_ifp; 3074 3075 ifp->if_capenable &= 3076 ~(IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3077 ifp->if_capenable |= rxmask; 3078 } 3079 IEEE80211_UNLOCK(ic); 3080 break; 3081 } 3082 default: 3083 error = ENOTTY; /* for net80211 */ 3084 break; 3085 } 3086 3087 return (error); 3088 } 3089 3090 static void 3091 rsu_parent(struct ieee80211com *ic) 3092 { 3093 struct rsu_softc *sc = ic->ic_softc; 3094 3095 if (ic->ic_nrunning > 0) { 3096 if (rsu_init(sc) == 0) 3097 ieee80211_start_all(ic); 3098 else { 3099 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3100 if (vap != NULL) 3101 ieee80211_stop(vap); 3102 } 3103 } else 3104 rsu_stop(sc); 3105 } 3106 3107 /* 3108 * Power on sequence for A-cut adapters. 3109 */ 3110 static void 3111 rsu_power_on_acut(struct rsu_softc *sc) 3112 { 3113 uint32_t reg; 3114 3115 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3116 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3117 3118 /* Enable AFE macro block's bandgap and Mbias. */ 3119 rsu_write_1(sc, R92S_AFE_MISC, 3120 rsu_read_1(sc, R92S_AFE_MISC) | 3121 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 3122 /* Enable LDOA15 block. */ 3123 rsu_write_1(sc, R92S_LDOA15_CTRL, 3124 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3125 3126 rsu_write_1(sc, R92S_SPS1_CTRL, 3127 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 3128 rsu_ms_delay(sc, 2000); 3129 /* Enable switch regulator block. */ 3130 rsu_write_1(sc, R92S_SPS1_CTRL, 3131 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 3132 3133 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 3134 3135 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3136 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3137 3138 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3139 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3140 3141 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3142 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 3143 3144 /* Enable AFE clock. */ 3145 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3146 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3147 /* Enable AFE PLL macro block. */ 3148 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 3149 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 3150 /* Attach AFE PLL to MACTOP/BB. */ 3151 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3152 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3153 3154 /* Switch to 40MHz clock instead of 80MHz. */ 3155 rsu_write_2(sc, R92S_SYS_CLKR, 3156 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 3157 3158 /* Enable MAC clock. */ 3159 rsu_write_2(sc, R92S_SYS_CLKR, 3160 rsu_read_2(sc, R92S_SYS_CLKR) | 3161 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3162 3163 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3164 3165 /* Enable digital core and IOREG R/W. */ 3166 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3167 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3168 3169 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3170 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3171 3172 /* Switch the control path to firmware. */ 3173 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3174 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3175 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3176 3177 rsu_write_2(sc, R92S_CR, 0x37fc); 3178 3179 /* Fix USB RX FIFO issue. */ 3180 rsu_write_1(sc, 0xfe5c, 3181 rsu_read_1(sc, 0xfe5c) | 0x80); 3182 rsu_write_1(sc, 0x00ab, 3183 rsu_read_1(sc, 0x00ab) | 0xc0); 3184 3185 rsu_write_1(sc, R92S_SYS_CLKR, 3186 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3187 } 3188 3189 /* 3190 * Power on sequence for B-cut and C-cut adapters. 3191 */ 3192 static void 3193 rsu_power_on_bcut(struct rsu_softc *sc) 3194 { 3195 uint32_t reg; 3196 int ntries; 3197 3198 /* Prevent eFuse leakage. */ 3199 rsu_write_1(sc, 0x37, 0xb0); 3200 rsu_ms_delay(sc, 10); 3201 rsu_write_1(sc, 0x37, 0x30); 3202 3203 /* Switch the control path to hardware. */ 3204 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3205 if (reg & R92S_FWHW_SEL) { 3206 rsu_write_2(sc, R92S_SYS_CLKR, 3207 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 3208 } 3209 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3210 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 3211 rsu_ms_delay(sc, 1); 3212 3213 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3214 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3215 3216 reg = rsu_read_1(sc, R92S_AFE_MISC); 3217 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 3218 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 3219 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 3220 3221 /* Enable PLL. */ 3222 rsu_write_1(sc, R92S_LDOA15_CTRL, 3223 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3224 3225 rsu_write_1(sc, R92S_LDOV12D_CTRL, 3226 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 3227 3228 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3229 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3230 3231 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3232 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3233 3234 /* Support 64KB IMEM. */ 3235 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3236 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 3237 3238 /* Enable AFE clock. */ 3239 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3240 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3241 /* Enable AFE PLL macro block. */ 3242 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 3243 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3244 rsu_ms_delay(sc, 1); 3245 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 3246 rsu_ms_delay(sc, 1); 3247 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3248 rsu_ms_delay(sc, 1); 3249 3250 /* Attach AFE PLL to MACTOP/BB. */ 3251 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3252 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3253 3254 /* Switch to 40MHz clock. */ 3255 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 3256 /* Disable CPU clock and 80MHz SSC. */ 3257 rsu_write_1(sc, R92S_SYS_CLKR, 3258 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 3259 /* Enable MAC clock. */ 3260 rsu_write_2(sc, R92S_SYS_CLKR, 3261 rsu_read_2(sc, R92S_SYS_CLKR) | 3262 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3263 3264 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3265 3266 /* Enable digital core and IOREG R/W. */ 3267 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3268 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3269 3270 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3271 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3272 3273 /* Switch the control path to firmware. */ 3274 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3275 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3276 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3277 3278 rsu_write_2(sc, R92S_CR, 0x37fc); 3279 3280 /* Fix USB RX FIFO issue. */ 3281 rsu_write_1(sc, 0xfe5c, 3282 rsu_read_1(sc, 0xfe5c) | 0x80); 3283 3284 rsu_write_1(sc, R92S_SYS_CLKR, 3285 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3286 3287 rsu_write_1(sc, 0xfe1c, 0x80); 3288 3289 /* Make sure TxDMA is ready to download firmware. */ 3290 for (ntries = 0; ntries < 20; ntries++) { 3291 reg = rsu_read_1(sc, R92S_TCR); 3292 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 3293 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 3294 break; 3295 rsu_ms_delay(sc, 1); 3296 } 3297 if (ntries == 20) { 3298 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 3299 "%s: TxDMA is not ready\n", 3300 __func__); 3301 /* Reset TxDMA. */ 3302 reg = rsu_read_1(sc, R92S_CR); 3303 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 3304 rsu_ms_delay(sc, 1); 3305 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 3306 } 3307 } 3308 3309 static void 3310 rsu_power_off(struct rsu_softc *sc) 3311 { 3312 /* Turn RF off. */ 3313 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 3314 rsu_ms_delay(sc, 5); 3315 3316 /* Turn MAC off. */ 3317 /* Switch control path. */ 3318 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 3319 /* Reset MACTOP. */ 3320 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 3321 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 3322 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 3323 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 3324 3325 /* Disable AFE PLL. */ 3326 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 3327 /* Disable A15V. */ 3328 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 3329 /* Disable eFuse 1.2V. */ 3330 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 3331 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 3332 /* Enable AFE macro block's bandgap and Mbias. */ 3333 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 3334 /* Disable 1.6V LDO. */ 3335 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 3336 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 3337 3338 /* Firmware - tell it to switch things off */ 3339 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 3340 } 3341 3342 static int 3343 rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 3344 { 3345 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 3346 struct rsu_data *data; 3347 struct r92s_tx_desc *txd; 3348 int mlen; 3349 3350 while (len > 0) { 3351 data = rsu_getbuf(sc); 3352 if (data == NULL) 3353 return (ENOMEM); 3354 txd = (struct r92s_tx_desc *)data->buf; 3355 memset(txd, 0, sizeof(*txd)); 3356 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 3357 /* Last chunk. */ 3358 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 3359 mlen = len; 3360 } else 3361 mlen = RSU_TXBUFSZ - sizeof(*txd); 3362 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 3363 memcpy(&txd[1], buf, mlen); 3364 data->buflen = sizeof(*txd) + mlen; 3365 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 3366 "%s: starting transfer %p\n", 3367 __func__, data); 3368 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 3369 buf += mlen; 3370 len -= mlen; 3371 } 3372 usbd_transfer_start(sc->sc_xfer[which]); 3373 return (0); 3374 } 3375 3376 static int 3377 rsu_load_firmware(struct rsu_softc *sc) 3378 { 3379 const struct r92s_fw_hdr *hdr; 3380 struct r92s_fw_priv *dmem; 3381 struct ieee80211com *ic = &sc->sc_ic; 3382 const uint8_t *imem, *emem; 3383 int imemsz, ememsz; 3384 const struct firmware *fw; 3385 size_t size; 3386 uint32_t reg; 3387 int ntries, error; 3388 3389 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 3390 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 3391 "%s: Firmware already loaded\n", 3392 __func__); 3393 return (0); 3394 } 3395 3396 RSU_UNLOCK(sc); 3397 /* Read firmware image from the filesystem. */ 3398 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 3399 device_printf(sc->sc_dev, 3400 "%s: failed load firmware of file rsu-rtl8712fw\n", 3401 __func__); 3402 RSU_LOCK(sc); 3403 return (ENXIO); 3404 } 3405 RSU_LOCK(sc); 3406 size = fw->datasize; 3407 if (size < sizeof(*hdr)) { 3408 device_printf(sc->sc_dev, "firmware too short\n"); 3409 error = EINVAL; 3410 goto fail; 3411 } 3412 hdr = (const struct r92s_fw_hdr *)fw->data; 3413 if (hdr->signature != htole16(0x8712) && 3414 hdr->signature != htole16(0x8192)) { 3415 device_printf(sc->sc_dev, 3416 "invalid firmware signature 0x%x\n", 3417 le16toh(hdr->signature)); 3418 error = EINVAL; 3419 goto fail; 3420 } 3421 RSU_DPRINTF(sc, RSU_DEBUG_FW, "FW V%d %02x-%02x %02x:%02x\n", 3422 le16toh(hdr->version), hdr->month, hdr->day, hdr->hour, 3423 hdr->minute); 3424 3425 /* Make sure that driver and firmware are in sync. */ 3426 if (hdr->privsz != htole32(sizeof(*dmem))) { 3427 device_printf(sc->sc_dev, "unsupported firmware image\n"); 3428 error = EINVAL; 3429 goto fail; 3430 } 3431 /* Get FW sections sizes. */ 3432 imemsz = le32toh(hdr->imemsz); 3433 ememsz = le32toh(hdr->sramsz); 3434 /* Check that all FW sections fit in image. */ 3435 if (size < sizeof(*hdr) + imemsz + ememsz) { 3436 device_printf(sc->sc_dev, "firmware too short\n"); 3437 error = EINVAL; 3438 goto fail; 3439 } 3440 imem = (const uint8_t *)&hdr[1]; 3441 emem = imem + imemsz; 3442 3443 /* Load IMEM section. */ 3444 error = rsu_fw_loadsection(sc, imem, imemsz); 3445 if (error != 0) { 3446 device_printf(sc->sc_dev, 3447 "could not load firmware section %s\n", "IMEM"); 3448 goto fail; 3449 } 3450 /* Wait for load to complete. */ 3451 for (ntries = 0; ntries != 50; ntries++) { 3452 rsu_ms_delay(sc, 10); 3453 reg = rsu_read_1(sc, R92S_TCR); 3454 if (reg & R92S_TCR_IMEM_CODE_DONE) 3455 break; 3456 } 3457 if (ntries == 50) { 3458 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 3459 error = ETIMEDOUT; 3460 goto fail; 3461 } 3462 /* Load EMEM section. */ 3463 error = rsu_fw_loadsection(sc, emem, ememsz); 3464 if (error != 0) { 3465 device_printf(sc->sc_dev, 3466 "could not load firmware section %s\n", "EMEM"); 3467 goto fail; 3468 } 3469 /* Wait for load to complete. */ 3470 for (ntries = 0; ntries != 50; ntries++) { 3471 rsu_ms_delay(sc, 10); 3472 reg = rsu_read_2(sc, R92S_TCR); 3473 if (reg & R92S_TCR_EMEM_CODE_DONE) 3474 break; 3475 } 3476 if (ntries == 50) { 3477 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 3478 error = ETIMEDOUT; 3479 goto fail; 3480 } 3481 /* Enable CPU. */ 3482 rsu_write_1(sc, R92S_SYS_CLKR, 3483 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 3484 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 3485 device_printf(sc->sc_dev, "could not enable system clock\n"); 3486 error = EIO; 3487 goto fail; 3488 } 3489 rsu_write_2(sc, R92S_SYS_FUNC_EN, 3490 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 3491 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 3492 device_printf(sc->sc_dev, 3493 "could not enable microcontroller\n"); 3494 error = EIO; 3495 goto fail; 3496 } 3497 /* Wait for CPU to initialize. */ 3498 for (ntries = 0; ntries < 100; ntries++) { 3499 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 3500 break; 3501 rsu_ms_delay(sc, 1); 3502 } 3503 if (ntries == 100) { 3504 device_printf(sc->sc_dev, 3505 "timeout waiting for microcontroller\n"); 3506 error = ETIMEDOUT; 3507 goto fail; 3508 } 3509 3510 /* Update DMEM section before loading. */ 3511 dmem = __DECONST(struct r92s_fw_priv *, &hdr->priv); 3512 memset(dmem, 0, sizeof(*dmem)); 3513 dmem->hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 3514 dmem->nendpoints = sc->sc_nendpoints; 3515 dmem->chip_version = sc->cut; 3516 dmem->rf_config = sc->sc_rftype; 3517 dmem->vcs_type = R92S_VCS_TYPE_AUTO; 3518 dmem->vcs_mode = R92S_VCS_MODE_RTS_CTS; 3519 dmem->turbo_mode = 0; 3520 dmem->bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 3521 dmem->amsdu2ampdu_en = !! (sc->sc_ht); 3522 dmem->ampdu_en = !! (sc->sc_ht); 3523 dmem->agg_offload = !! (sc->sc_ht); 3524 dmem->qos_en = 1; 3525 dmem->ps_offload = 1; 3526 dmem->lowpower_mode = 1; /* XXX TODO: configurable? */ 3527 /* Load DMEM section. */ 3528 error = rsu_fw_loadsection(sc, (uint8_t *)dmem, sizeof(*dmem)); 3529 if (error != 0) { 3530 device_printf(sc->sc_dev, 3531 "could not load firmware section %s\n", "DMEM"); 3532 goto fail; 3533 } 3534 /* Wait for load to complete. */ 3535 for (ntries = 0; ntries < 100; ntries++) { 3536 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 3537 break; 3538 rsu_ms_delay(sc, 1); 3539 } 3540 if (ntries == 100) { 3541 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 3542 "DMEM"); 3543 error = ETIMEDOUT; 3544 goto fail; 3545 } 3546 /* Wait for firmware readiness. */ 3547 for (ntries = 0; ntries < 60; ntries++) { 3548 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 3549 break; 3550 rsu_ms_delay(sc, 1); 3551 } 3552 if (ntries == 60) { 3553 device_printf(sc->sc_dev, 3554 "timeout waiting for firmware readiness\n"); 3555 error = ETIMEDOUT; 3556 goto fail; 3557 } 3558 fail: 3559 firmware_put(fw, FIRMWARE_UNLOAD); 3560 return (error); 3561 } 3562 3563 3564 static int 3565 rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3566 const struct ieee80211_bpf_params *params) 3567 { 3568 struct ieee80211com *ic = ni->ni_ic; 3569 struct rsu_softc *sc = ic->ic_softc; 3570 struct rsu_data *bf; 3571 3572 /* prevent management frames from being sent if we're not ready */ 3573 if (!sc->sc_running) { 3574 m_freem(m); 3575 return (ENETDOWN); 3576 } 3577 RSU_LOCK(sc); 3578 bf = rsu_getbuf(sc); 3579 if (bf == NULL) { 3580 m_freem(m); 3581 RSU_UNLOCK(sc); 3582 return (ENOBUFS); 3583 } 3584 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3585 m_freem(m); 3586 rsu_freebuf(sc, bf); 3587 RSU_UNLOCK(sc); 3588 return (EIO); 3589 } 3590 RSU_UNLOCK(sc); 3591 3592 return (0); 3593 } 3594 3595 static void 3596 rsu_rxfilter_init(struct rsu_softc *sc) 3597 { 3598 uint32_t reg; 3599 3600 RSU_ASSERT_LOCKED(sc); 3601 3602 /* Setup multicast filter. */ 3603 rsu_set_multi(sc); 3604 3605 /* Adjust Rx filter. */ 3606 reg = rsu_read_4(sc, R92S_RCR); 3607 reg &= ~R92S_RCR_AICV; 3608 reg |= R92S_RCR_APP_PHYSTS; 3609 if (sc->sc_rx_checksum_enable) 3610 reg |= R92S_RCR_TCP_OFFLD_EN; 3611 rsu_write_4(sc, R92S_RCR, reg); 3612 3613 /* Update dynamic Rx filter parts. */ 3614 rsu_rxfilter_refresh(sc); 3615 } 3616 3617 static void 3618 rsu_rxfilter_set(struct rsu_softc *sc, uint32_t clear, uint32_t set) 3619 { 3620 /* NB: firmware can touch this register too. */ 3621 rsu_write_4(sc, R92S_RCR, 3622 (rsu_read_4(sc, R92S_RCR) & ~clear) | set); 3623 } 3624 3625 static void 3626 rsu_rxfilter_refresh(struct rsu_softc *sc) 3627 { 3628 struct ieee80211com *ic = &sc->sc_ic; 3629 uint32_t mask_all, mask_min; 3630 3631 RSU_ASSERT_LOCKED(sc); 3632 3633 /* NB: RCR_AMF / RXFLTMAP_MGT are used by firmware. */ 3634 mask_all = R92S_RCR_ACF | R92S_RCR_AAP; 3635 mask_min = R92S_RCR_APM; 3636 if (sc->sc_vap_is_running) 3637 mask_min |= R92S_RCR_CBSSID; 3638 else 3639 mask_all |= R92S_RCR_ADF; 3640 3641 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3642 uint16_t rxfltmap; 3643 if (sc->sc_vap_is_running) 3644 rxfltmap = 0; 3645 else 3646 rxfltmap = R92S_RXFLTMAP_MGT_DEF; 3647 rsu_write_2(sc, R92S_RXFLTMAP_MGT, rxfltmap); 3648 } 3649 3650 if (ic->ic_promisc == 0 && ic->ic_opmode != IEEE80211_M_MONITOR) 3651 rsu_rxfilter_set(sc, mask_all, mask_min); 3652 else 3653 rsu_rxfilter_set(sc, mask_min, mask_all); 3654 } 3655 3656 static int 3657 rsu_init(struct rsu_softc *sc) 3658 { 3659 struct ieee80211com *ic = &sc->sc_ic; 3660 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3661 uint8_t macaddr[IEEE80211_ADDR_LEN]; 3662 int error; 3663 int i; 3664 3665 RSU_LOCK(sc); 3666 3667 if (sc->sc_running) { 3668 RSU_UNLOCK(sc); 3669 return (0); 3670 } 3671 3672 /* Ensure the mbuf queue is drained */ 3673 rsu_drain_mbufq(sc); 3674 3675 /* Reset power management state. */ 3676 rsu_write_1(sc, R92S_USB_HRPWM, 0); 3677 3678 /* Power on adapter. */ 3679 if (sc->cut == 1) 3680 rsu_power_on_acut(sc); 3681 else 3682 rsu_power_on_bcut(sc); 3683 3684 /* Load firmware. */ 3685 error = rsu_load_firmware(sc); 3686 if (error != 0) 3687 goto fail; 3688 3689 rsu_write_4(sc, R92S_CR, 3690 rsu_read_4(sc, R92S_CR) & ~0xff000000); 3691 3692 /* Use 128 bytes pages. */ 3693 rsu_write_1(sc, 0x00b5, 3694 rsu_read_1(sc, 0x00b5) | 0x01); 3695 /* Enable USB Rx aggregation. */ 3696 rsu_write_1(sc, 0x00bd, 3697 rsu_read_1(sc, 0x00bd) | 0x80); 3698 /* Set USB Rx aggregation threshold. */ 3699 rsu_write_1(sc, 0x00d9, 0x01); 3700 /* Set USB Rx aggregation timeout (1.7ms/4). */ 3701 rsu_write_1(sc, 0xfe5b, 0x04); 3702 /* Fix USB Rx FIFO issue. */ 3703 rsu_write_1(sc, 0xfe5c, 3704 rsu_read_1(sc, 0xfe5c) | 0x80); 3705 3706 /* Set MAC address. */ 3707 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 3708 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 3709 3710 /* It really takes 1.5 seconds for the firmware to boot: */ 3711 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(2000)); 3712 3713 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 3714 __func__, 3715 ether_sprintf(macaddr)); 3716 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 3717 IEEE80211_ADDR_LEN); 3718 if (error != 0) { 3719 device_printf(sc->sc_dev, "could not set MAC address\n"); 3720 goto fail; 3721 } 3722 3723 /* Initialize Rx filter. */ 3724 rsu_rxfilter_init(sc); 3725 3726 /* Set PS mode fully active */ 3727 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 3728 if (error != 0) { 3729 device_printf(sc->sc_dev, "could not set PS mode\n"); 3730 goto fail; 3731 } 3732 3733 /* Install static keys (if any). */ 3734 error = rsu_reinit_static_keys(sc); 3735 if (error != 0) 3736 goto fail; 3737 3738 sc->sc_extra_scan = 0; 3739 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 3740 3741 /* We're ready to go. */ 3742 sc->sc_running = 1; 3743 RSU_UNLOCK(sc); 3744 3745 return (0); 3746 fail: 3747 /* Need to stop all failed transfers, if any */ 3748 for (i = 0; i != RSU_N_TRANSFER; i++) 3749 usbd_transfer_stop(sc->sc_xfer[i]); 3750 RSU_UNLOCK(sc); 3751 3752 return (error); 3753 } 3754 3755 static void 3756 rsu_stop(struct rsu_softc *sc) 3757 { 3758 int i; 3759 3760 RSU_LOCK(sc); 3761 if (!sc->sc_running) { 3762 RSU_UNLOCK(sc); 3763 return; 3764 } 3765 3766 sc->sc_running = 0; 3767 sc->sc_vap_is_running = 0; 3768 sc->sc_calibrating = 0; 3769 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 3770 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 3771 3772 /* Power off adapter. */ 3773 rsu_power_off(sc); 3774 3775 /* 3776 * CAM is not accessible after shutdown; 3777 * all entries are marked (by firmware?) as invalid. 3778 */ 3779 memset(sc->free_keys_bmap, 0, sizeof(sc->free_keys_bmap)); 3780 memset(sc->keys_bmap, 0, sizeof(sc->keys_bmap)); 3781 3782 for (i = 0; i < RSU_N_TRANSFER; i++) 3783 usbd_transfer_stop(sc->sc_xfer[i]); 3784 3785 /* Ensure the mbuf queue is drained */ 3786 rsu_drain_mbufq(sc); 3787 RSU_UNLOCK(sc); 3788 } 3789 3790 /* 3791 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 3792 * which breaks any kind of driver serialisation. 3793 */ 3794 static void 3795 rsu_ms_delay(struct rsu_softc *sc, int ms) 3796 { 3797 3798 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 3799 DELAY(ms * 1000); 3800 } 3801