1 /* $OpenBSD: if_rsu.c,v 1.17 2013/04/15 09:23:01 mglocker Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 #include <sys/cdefs.h> 19 __FBSDID("$FreeBSD$"); 20 21 /* 22 * Driver for Realtek RTL8188SU/RTL8191SU/RTL8192SU. 23 * 24 * TODO: 25 * o tx a-mpdu 26 * o hostap / ibss / mesh 27 * o power-save operation 28 */ 29 30 #include "opt_wlan.h" 31 32 #include <sys/param.h> 33 #include <sys/endian.h> 34 #include <sys/sockio.h> 35 #include <sys/malloc.h> 36 #include <sys/mbuf.h> 37 #include <sys/kernel.h> 38 #include <sys/socket.h> 39 #include <sys/systm.h> 40 #include <sys/conf.h> 41 #include <sys/bus.h> 42 #include <sys/firmware.h> 43 #include <sys/module.h> 44 45 #include <net/bpf.h> 46 #include <net/if.h> 47 #include <net/if_var.h> 48 #include <net/if_arp.h> 49 #include <net/if_dl.h> 50 #include <net/if_media.h> 51 #include <net/if_types.h> 52 53 #include <netinet/in.h> 54 #include <netinet/in_systm.h> 55 #include <netinet/in_var.h> 56 #include <netinet/if_ether.h> 57 #include <netinet/ip.h> 58 59 #include <net80211/ieee80211_var.h> 60 #include <net80211/ieee80211_regdomain.h> 61 #include <net80211/ieee80211_radiotap.h> 62 63 #include <dev/usb/usb.h> 64 #include <dev/usb/usbdi.h> 65 #include "usbdevs.h" 66 67 #include <dev/rtwn/if_rtwn_ridx.h> /* XXX */ 68 #include <dev/usb/wlan/if_rsureg.h> 69 70 #define RSU_RATE_IS_CCK RTWN_RATE_IS_CCK 71 72 #ifdef USB_DEBUG 73 static int rsu_debug = 0; 74 SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW, 0, "USB rsu"); 75 SYSCTL_INT(_hw_usb_rsu, OID_AUTO, debug, CTLFLAG_RWTUN, &rsu_debug, 0, 76 "Debug level"); 77 #define RSU_DPRINTF(_sc, _flg, ...) \ 78 do \ 79 if (((_flg) == (RSU_DEBUG_ANY)) || (rsu_debug & (_flg))) \ 80 device_printf((_sc)->sc_dev, __VA_ARGS__); \ 81 while (0) 82 #else 83 #define RSU_DPRINTF(_sc, _flg, ...) 84 #endif 85 86 static int rsu_enable_11n = 1; 87 TUNABLE_INT("hw.usb.rsu.enable_11n", &rsu_enable_11n); 88 89 #define RSU_DEBUG_ANY 0xffffffff 90 #define RSU_DEBUG_TX 0x00000001 91 #define RSU_DEBUG_RX 0x00000002 92 #define RSU_DEBUG_RESET 0x00000004 93 #define RSU_DEBUG_CALIB 0x00000008 94 #define RSU_DEBUG_STATE 0x00000010 95 #define RSU_DEBUG_SCAN 0x00000020 96 #define RSU_DEBUG_FWCMD 0x00000040 97 #define RSU_DEBUG_TXDONE 0x00000080 98 #define RSU_DEBUG_FW 0x00000100 99 #define RSU_DEBUG_FWDBG 0x00000200 100 #define RSU_DEBUG_AMPDU 0x00000400 101 #define RSU_DEBUG_KEY 0x00000800 102 #define RSU_DEBUG_USB 0x00001000 103 104 static const STRUCT_USB_HOST_ID rsu_devs[] = { 105 #define RSU_HT_NOT_SUPPORTED 0 106 #define RSU_HT_SUPPORTED 1 107 #define RSU_DEV_HT(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 108 RSU_HT_SUPPORTED) } 109 #define RSU_DEV(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 110 RSU_HT_NOT_SUPPORTED) } 111 RSU_DEV(ASUS, RTL8192SU), 112 RSU_DEV(AZUREWAVE, RTL8192SU_4), 113 RSU_DEV(SITECOMEU, WLA1000), 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 uint8_t rsu_wme_ac_xfer_map[4] = { 286 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 287 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 288 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 289 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 290 }; 291 292 /* XXX hard-coded */ 293 #define RSU_H2C_ENDPOINT 3 294 295 static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 296 [RSU_BULK_RX] = { 297 .type = UE_BULK, 298 .endpoint = UE_ADDR_ANY, 299 .direction = UE_DIR_IN, 300 .bufsize = RSU_RXBUFSZ, 301 .flags = { 302 .pipe_bof = 1, 303 .short_xfer_ok = 1 304 }, 305 .callback = rsu_bulk_rx_callback 306 }, 307 [RSU_BULK_TX_BE_BK] = { 308 .type = UE_BULK, 309 .endpoint = 0x06, 310 .direction = UE_DIR_OUT, 311 .bufsize = RSU_TXBUFSZ, 312 .flags = { 313 .ext_buffer = 1, 314 .pipe_bof = 1, 315 .force_short_xfer = 1 316 }, 317 .callback = rsu_bulk_tx_callback_be_bk, 318 .timeout = RSU_TX_TIMEOUT 319 }, 320 [RSU_BULK_TX_VI_VO] = { 321 .type = UE_BULK, 322 .endpoint = 0x04, 323 .direction = UE_DIR_OUT, 324 .bufsize = RSU_TXBUFSZ, 325 .flags = { 326 .ext_buffer = 1, 327 .pipe_bof = 1, 328 .force_short_xfer = 1 329 }, 330 .callback = rsu_bulk_tx_callback_vi_vo, 331 .timeout = RSU_TX_TIMEOUT 332 }, 333 [RSU_BULK_TX_H2C] = { 334 .type = UE_BULK, 335 .endpoint = 0x0d, 336 .direction = UE_DIR_OUT, 337 .bufsize = RSU_TXBUFSZ, 338 .flags = { 339 .ext_buffer = 1, 340 .pipe_bof = 1, 341 .short_xfer_ok = 1 342 }, 343 .callback = rsu_bulk_tx_callback_h2c, 344 .timeout = RSU_TX_TIMEOUT 345 }, 346 }; 347 348 static int 349 rsu_match(device_t self) 350 { 351 struct usb_attach_arg *uaa = device_get_ivars(self); 352 353 if (uaa->usb_mode != USB_MODE_HOST || 354 uaa->info.bIfaceIndex != 0 || 355 uaa->info.bConfigIndex != 0) 356 return (ENXIO); 357 358 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 359 } 360 361 static int 362 rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 363 { 364 365 return (ENOTSUP); 366 } 367 368 static void 369 rsu_update_chw(struct ieee80211com *ic) 370 { 371 372 } 373 374 /* 375 * notification from net80211 that it'd like to do A-MPDU on the given TID. 376 * 377 * Note: this actually hangs traffic at the present moment, so don't use it. 378 * The firmware debug does indiciate it's sending and establishing a TX AMPDU 379 * session, but then no traffic flows. 380 */ 381 static int 382 rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 383 { 384 #if 0 385 struct rsu_softc *sc = ni->ni_ic->ic_softc; 386 struct r92s_add_ba_req req; 387 388 /* Don't enable if it's requested or running */ 389 if (IEEE80211_AMPDU_REQUESTED(tap)) 390 return (0); 391 if (IEEE80211_AMPDU_RUNNING(tap)) 392 return (0); 393 394 /* We've decided to send addba; so send it */ 395 req.tid = htole32(tap->txa_tid); 396 397 /* Attempt net80211 state */ 398 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 399 return (0); 400 401 /* Send the firmware command */ 402 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: establishing AMPDU TX for TID %d\n", 403 __func__, 404 tap->txa_tid); 405 406 RSU_LOCK(sc); 407 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 1) { 408 RSU_UNLOCK(sc); 409 /* Mark failure */ 410 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 411 return (0); 412 } 413 RSU_UNLOCK(sc); 414 415 /* Mark success; we don't get any further notifications */ 416 (void) ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 417 #endif 418 /* Return 0, we're driving this ourselves */ 419 return (0); 420 } 421 422 static int 423 rsu_wme_update(struct ieee80211com *ic) 424 { 425 426 /* Firmware handles this; not our problem */ 427 return (0); 428 } 429 430 static int 431 rsu_attach(device_t self) 432 { 433 struct usb_attach_arg *uaa = device_get_ivars(self); 434 struct rsu_softc *sc = device_get_softc(self); 435 struct ieee80211com *ic = &sc->sc_ic; 436 int error; 437 uint8_t iface_index; 438 struct usb_interface *iface; 439 const char *rft; 440 441 device_set_usb_desc(self); 442 sc->sc_udev = uaa->device; 443 sc->sc_dev = self; 444 sc->sc_rx_checksum_enable = 1; 445 if (rsu_enable_11n) 446 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 447 448 /* Get number of endpoints */ 449 iface = usbd_get_iface(sc->sc_udev, 0); 450 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 451 452 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 453 if (sc->sc_nendpoints != 4) { 454 device_printf(sc->sc_dev, 455 "the driver currently only supports 4-endpoint devices\n"); 456 return (ENXIO); 457 } 458 459 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 460 MTX_DEF); 461 RSU_DELKEY_BMAP_LOCK_INIT(sc); 462 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 463 rsu_calib_task, sc); 464 TASK_INIT(&sc->del_key_task, 0, rsu_delete_key_pair_cb, sc); 465 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 466 mbufq_init(&sc->sc_snd, ifqmaxlen); 467 468 /* Allocate Tx/Rx buffers. */ 469 error = rsu_alloc_rx_list(sc); 470 if (error != 0) { 471 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 472 goto fail_usb; 473 } 474 475 error = rsu_alloc_tx_list(sc); 476 if (error != 0) { 477 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 478 rsu_free_rx_list(sc); 479 goto fail_usb; 480 } 481 482 iface_index = 0; 483 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 484 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 485 if (error) { 486 device_printf(sc->sc_dev, 487 "could not allocate USB transfers, err=%s\n", 488 usbd_errstr(error)); 489 goto fail_usb; 490 } 491 RSU_LOCK(sc); 492 /* Read chip revision. */ 493 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 494 if (sc->cut != 3) 495 sc->cut = (sc->cut >> 1) + 1; 496 error = rsu_read_rom(sc); 497 RSU_UNLOCK(sc); 498 if (error != 0) { 499 device_printf(self, "could not read ROM\n"); 500 goto fail_rom; 501 } 502 503 /* Figure out TX/RX streams */ 504 switch (sc->rom[84]) { 505 case 0x0: 506 sc->sc_rftype = RTL8712_RFCONFIG_1T1R; 507 sc->sc_nrxstream = 1; 508 sc->sc_ntxstream = 1; 509 rft = "1T1R"; 510 break; 511 case 0x1: 512 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 513 sc->sc_nrxstream = 2; 514 sc->sc_ntxstream = 1; 515 rft = "1T2R"; 516 break; 517 case 0x2: 518 sc->sc_rftype = RTL8712_RFCONFIG_2T2R; 519 sc->sc_nrxstream = 2; 520 sc->sc_ntxstream = 2; 521 rft = "2T2R"; 522 break; 523 case 0x3: /* "green" NIC */ 524 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 525 sc->sc_nrxstream = 2; 526 sc->sc_ntxstream = 1; 527 rft = "1T2R ('green')"; 528 break; 529 default: 530 device_printf(sc->sc_dev, 531 "%s: unknown board type (rfconfig=0x%02x)\n", 532 __func__, 533 sc->rom[84]); 534 goto fail_rom; 535 } 536 537 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 538 device_printf(self, "MAC/BB RTL8712 cut %d %s\n", sc->cut, rft); 539 540 ic->ic_softc = sc; 541 ic->ic_name = device_get_nameunit(self); 542 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 543 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 544 545 /* Set device capabilities. */ 546 ic->ic_caps = 547 IEEE80211_C_STA | /* station mode */ 548 IEEE80211_C_MONITOR | /* monitor mode supported */ 549 #if 0 550 IEEE80211_C_BGSCAN | /* Background scan. */ 551 #endif 552 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 553 IEEE80211_C_WME | /* WME/QoS */ 554 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 555 IEEE80211_C_WPA; /* WPA/RSN. */ 556 557 ic->ic_cryptocaps = 558 IEEE80211_CRYPTO_WEP | 559 IEEE80211_CRYPTO_TKIP | 560 IEEE80211_CRYPTO_AES_CCM; 561 562 /* Check if HT support is present. */ 563 if (sc->sc_ht) { 564 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 565 566 /* Enable basic HT */ 567 ic->ic_htcaps = IEEE80211_HTC_HT | 568 #if 0 569 IEEE80211_HTC_AMPDU | 570 #endif 571 IEEE80211_HTC_AMSDU | 572 IEEE80211_HTCAP_MAXAMSDU_3839 | 573 IEEE80211_HTCAP_SMPS_OFF; 574 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 575 576 /* set number of spatial streams */ 577 ic->ic_txstream = sc->sc_ntxstream; 578 ic->ic_rxstream = sc->sc_nrxstream; 579 } 580 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 581 582 rsu_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 583 ic->ic_channels); 584 585 ieee80211_ifattach(ic); 586 ic->ic_raw_xmit = rsu_raw_xmit; 587 ic->ic_scan_start = rsu_scan_start; 588 ic->ic_scan_end = rsu_scan_end; 589 ic->ic_getradiocaps = rsu_getradiocaps; 590 ic->ic_set_channel = rsu_set_channel; 591 ic->ic_scan_curchan = rsu_scan_curchan; 592 ic->ic_scan_mindwell = rsu_scan_mindwell; 593 ic->ic_vap_create = rsu_vap_create; 594 ic->ic_vap_delete = rsu_vap_delete; 595 ic->ic_update_promisc = rsu_update_promisc; 596 ic->ic_update_mcast = rsu_update_mcast; 597 ic->ic_ioctl = rsu_ioctl_net; 598 ic->ic_parent = rsu_parent; 599 ic->ic_transmit = rsu_transmit; 600 ic->ic_send_mgmt = rsu_send_mgmt; 601 ic->ic_update_chw = rsu_update_chw; 602 ic->ic_ampdu_enable = rsu_ampdu_enable; 603 ic->ic_wme.wme_update = rsu_wme_update; 604 605 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 606 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 607 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 608 RSU_RX_RADIOTAP_PRESENT); 609 610 if (bootverbose) 611 ieee80211_announce(ic); 612 613 return (0); 614 615 fail_rom: 616 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 617 fail_usb: 618 mtx_destroy(&sc->sc_mtx); 619 return (ENXIO); 620 } 621 622 static int 623 rsu_detach(device_t self) 624 { 625 struct rsu_softc *sc = device_get_softc(self); 626 struct ieee80211com *ic = &sc->sc_ic; 627 628 rsu_stop(sc); 629 630 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 631 632 /* 633 * Free buffers /before/ we detach from net80211, else node 634 * references to destroyed vaps will lead to a panic. 635 */ 636 /* Free Tx/Rx buffers. */ 637 RSU_LOCK(sc); 638 rsu_free_tx_list(sc); 639 rsu_free_rx_list(sc); 640 RSU_UNLOCK(sc); 641 642 /* Frames are freed; detach from net80211 */ 643 ieee80211_ifdetach(ic); 644 645 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 646 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 647 taskqueue_drain(taskqueue_thread, &sc->tx_task); 648 649 RSU_DELKEY_BMAP_LOCK_DESTROY(sc); 650 mtx_destroy(&sc->sc_mtx); 651 652 return (0); 653 } 654 655 static usb_error_t 656 rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 657 void *data) 658 { 659 usb_error_t err; 660 int ntries = 10; 661 662 RSU_ASSERT_LOCKED(sc); 663 664 while (ntries--) { 665 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 666 req, data, 0, NULL, 250 /* ms */); 667 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 668 break; 669 RSU_DPRINTF(sc, RSU_DEBUG_USB, 670 "Control request failed, %s (retries left: %d)\n", 671 usbd_errstr(err), ntries); 672 rsu_ms_delay(sc, 10); 673 } 674 675 return (err); 676 } 677 678 static struct ieee80211vap * 679 rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 680 enum ieee80211_opmode opmode, int flags, 681 const uint8_t bssid[IEEE80211_ADDR_LEN], 682 const uint8_t mac[IEEE80211_ADDR_LEN]) 683 { 684 struct rsu_softc *sc = ic->ic_softc; 685 struct rsu_vap *uvp; 686 struct ieee80211vap *vap; 687 struct ifnet *ifp; 688 689 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 690 return (NULL); 691 692 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 693 vap = &uvp->vap; 694 695 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 696 flags, bssid) != 0) { 697 /* out of memory */ 698 free(uvp, M_80211_VAP); 699 return (NULL); 700 } 701 702 ifp = vap->iv_ifp; 703 ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 704 RSU_LOCK(sc); 705 if (sc->sc_rx_checksum_enable) 706 ifp->if_capenable |= IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 707 RSU_UNLOCK(sc); 708 709 /* override state transition machine */ 710 uvp->newstate = vap->iv_newstate; 711 if (opmode == IEEE80211_M_MONITOR) 712 vap->iv_newstate = rsu_monitor_newstate; 713 else 714 vap->iv_newstate = rsu_newstate; 715 vap->iv_key_alloc = rsu_key_alloc; 716 vap->iv_key_set = rsu_key_set; 717 vap->iv_key_delete = rsu_key_delete; 718 719 /* Limits from the r92su driver */ 720 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 721 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 722 723 /* complete setup */ 724 ieee80211_vap_attach(vap, ieee80211_media_change, 725 ieee80211_media_status, mac); 726 ic->ic_opmode = opmode; 727 728 return (vap); 729 } 730 731 static void 732 rsu_vap_delete(struct ieee80211vap *vap) 733 { 734 struct rsu_vap *uvp = RSU_VAP(vap); 735 736 ieee80211_vap_detach(vap); 737 free(uvp, M_80211_VAP); 738 } 739 740 static void 741 rsu_scan_start(struct ieee80211com *ic) 742 { 743 struct rsu_softc *sc = ic->ic_softc; 744 struct ieee80211_scan_state *ss = ic->ic_scan; 745 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 746 int error; 747 748 /* Scanning is done by the firmware. */ 749 RSU_LOCK(sc); 750 sc->sc_active_scan = !!(ss->ss_flags & IEEE80211_SCAN_ACTIVE); 751 /* XXX TODO: force awake if in network-sleep? */ 752 error = rsu_site_survey(sc, ss->ss_nssid > 0 ? &ss->ss_ssid[0] : NULL); 753 RSU_UNLOCK(sc); 754 if (error != 0) { 755 device_printf(sc->sc_dev, 756 "could not send site survey command\n"); 757 ieee80211_cancel_scan(vap); 758 } 759 } 760 761 static void 762 rsu_scan_end(struct ieee80211com *ic) 763 { 764 /* Nothing to do here. */ 765 } 766 767 static void 768 rsu_getradiocaps(struct ieee80211com *ic, 769 int maxchans, int *nchans, struct ieee80211_channel chans[]) 770 { 771 struct rsu_softc *sc = ic->ic_softc; 772 uint8_t bands[IEEE80211_MODE_BYTES]; 773 774 /* Set supported .11b and .11g rates. */ 775 memset(bands, 0, sizeof(bands)); 776 setbit(bands, IEEE80211_MODE_11B); 777 setbit(bands, IEEE80211_MODE_11G); 778 if (sc->sc_ht) 779 setbit(bands, IEEE80211_MODE_11NG); 780 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, 781 bands, (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0); 782 } 783 784 static void 785 rsu_set_channel(struct ieee80211com *ic) 786 { 787 struct rsu_softc *sc = ic->ic_softc; 788 789 /* 790 * Only need to set the channel in Monitor mode. AP scanning and auth 791 * are already taken care of by their respective firmware commands. 792 */ 793 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 794 struct r92s_set_channel cmd; 795 int error; 796 797 cmd.channel = IEEE80211_CHAN2IEEE(ic->ic_curchan); 798 799 RSU_LOCK(sc); 800 error = rsu_fw_cmd(sc, R92S_CMD_SET_CHANNEL, &cmd, 801 sizeof(cmd)); 802 if (error != 0) { 803 device_printf(sc->sc_dev, 804 "%s: error %d setting channel\n", __func__, 805 error); 806 } 807 RSU_UNLOCK(sc); 808 } 809 } 810 811 static void 812 rsu_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 813 { 814 /* Scan is done in rsu_scan_start(). */ 815 } 816 817 /** 818 * Called by the net80211 framework to indicate 819 * the minimum dwell time has been met, terminate the scan. 820 * We don't actually terminate the scan as the firmware will notify 821 * us when it's finished and we have no way to interrupt it. 822 */ 823 static void 824 rsu_scan_mindwell(struct ieee80211_scan_state *ss) 825 { 826 /* NB: don't try to abort scan; wait for firmware to finish */ 827 } 828 829 static void 830 rsu_update_promisc(struct ieee80211com *ic) 831 { 832 struct rsu_softc *sc = ic->ic_softc; 833 834 RSU_LOCK(sc); 835 if (sc->sc_running) 836 rsu_rxfilter_refresh(sc); 837 RSU_UNLOCK(sc); 838 } 839 840 /* 841 * The same as rtwn_get_multi_pos() / rtwn_set_multi(). 842 */ 843 static uint8_t 844 rsu_get_multi_pos(const uint8_t maddr[]) 845 { 846 uint64_t mask = 0x00004d101df481b4; 847 uint8_t pos = 0x27; /* initial value */ 848 int i, j; 849 850 for (i = 0; i < IEEE80211_ADDR_LEN; i++) 851 for (j = (i == 0) ? 1 : 0; j < 8; j++) 852 if ((maddr[i] >> j) & 1) 853 pos ^= (mask >> (i * 8 + j - 1)); 854 855 pos &= 0x3f; 856 857 return (pos); 858 } 859 860 static void 861 rsu_set_multi(struct rsu_softc *sc) 862 { 863 struct ieee80211com *ic = &sc->sc_ic; 864 uint32_t mfilt[2]; 865 866 RSU_ASSERT_LOCKED(sc); 867 868 /* general structure was copied from ath(4). */ 869 if (ic->ic_allmulti == 0) { 870 struct ieee80211vap *vap; 871 struct ifnet *ifp; 872 struct ifmultiaddr *ifma; 873 874 /* 875 * Merge multicast addresses to form the hardware filter. 876 */ 877 mfilt[0] = mfilt[1] = 0; 878 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 879 ifp = vap->iv_ifp; 880 if_maddr_rlock(ifp); 881 CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 882 caddr_t dl; 883 uint8_t pos; 884 885 dl = LLADDR((struct sockaddr_dl *) 886 ifma->ifma_addr); 887 pos = rsu_get_multi_pos(dl); 888 889 mfilt[pos / 32] |= (1 << (pos % 32)); 890 } 891 if_maddr_runlock(ifp); 892 } 893 } else 894 mfilt[0] = mfilt[1] = ~0; 895 896 rsu_write_4(sc, R92S_MAR + 0, mfilt[0]); 897 rsu_write_4(sc, R92S_MAR + 4, mfilt[1]); 898 899 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: MC filter %08x:%08x\n", 900 __func__, mfilt[0], mfilt[1]); 901 } 902 903 static void 904 rsu_update_mcast(struct ieee80211com *ic) 905 { 906 struct rsu_softc *sc = ic->ic_softc; 907 908 RSU_LOCK(sc); 909 if (sc->sc_running) 910 rsu_set_multi(sc); 911 RSU_UNLOCK(sc); 912 } 913 914 static int 915 rsu_alloc_list(struct rsu_softc *sc, struct rsu_data data[], 916 int ndata, int maxsz) 917 { 918 int i, error; 919 920 for (i = 0; i < ndata; i++) { 921 struct rsu_data *dp = &data[i]; 922 dp->sc = sc; 923 dp->m = NULL; 924 dp->buf = malloc(maxsz, M_USBDEV, M_NOWAIT); 925 if (dp->buf == NULL) { 926 device_printf(sc->sc_dev, 927 "could not allocate buffer\n"); 928 error = ENOMEM; 929 goto fail; 930 } 931 dp->ni = NULL; 932 } 933 934 return (0); 935 fail: 936 rsu_free_list(sc, data, ndata); 937 return (error); 938 } 939 940 static int 941 rsu_alloc_rx_list(struct rsu_softc *sc) 942 { 943 int error, i; 944 945 error = rsu_alloc_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT, 946 RSU_RXBUFSZ); 947 if (error != 0) 948 return (error); 949 950 STAILQ_INIT(&sc->sc_rx_active); 951 STAILQ_INIT(&sc->sc_rx_inactive); 952 953 for (i = 0; i < RSU_RX_LIST_COUNT; i++) 954 STAILQ_INSERT_HEAD(&sc->sc_rx_inactive, &sc->sc_rx[i], next); 955 956 return (0); 957 } 958 959 static int 960 rsu_alloc_tx_list(struct rsu_softc *sc) 961 { 962 int error, i; 963 964 error = rsu_alloc_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT, 965 RSU_TXBUFSZ); 966 if (error != 0) 967 return (error); 968 969 STAILQ_INIT(&sc->sc_tx_inactive); 970 971 for (i = 0; i != RSU_N_TRANSFER; i++) { 972 STAILQ_INIT(&sc->sc_tx_active[i]); 973 STAILQ_INIT(&sc->sc_tx_pending[i]); 974 } 975 976 for (i = 0; i < RSU_TX_LIST_COUNT; i++) { 977 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, &sc->sc_tx[i], next); 978 } 979 980 return (0); 981 } 982 983 static void 984 rsu_free_tx_list(struct rsu_softc *sc) 985 { 986 int i; 987 988 /* prevent further allocations from TX list(s) */ 989 STAILQ_INIT(&sc->sc_tx_inactive); 990 991 for (i = 0; i != RSU_N_TRANSFER; i++) { 992 STAILQ_INIT(&sc->sc_tx_active[i]); 993 STAILQ_INIT(&sc->sc_tx_pending[i]); 994 } 995 996 rsu_free_list(sc, sc->sc_tx, RSU_TX_LIST_COUNT); 997 } 998 999 static void 1000 rsu_free_rx_list(struct rsu_softc *sc) 1001 { 1002 /* prevent further allocations from RX list(s) */ 1003 STAILQ_INIT(&sc->sc_rx_inactive); 1004 STAILQ_INIT(&sc->sc_rx_active); 1005 1006 rsu_free_list(sc, sc->sc_rx, RSU_RX_LIST_COUNT); 1007 } 1008 1009 static void 1010 rsu_free_list(struct rsu_softc *sc, struct rsu_data data[], int ndata) 1011 { 1012 int i; 1013 1014 for (i = 0; i < ndata; i++) { 1015 struct rsu_data *dp = &data[i]; 1016 1017 if (dp->buf != NULL) { 1018 free(dp->buf, M_USBDEV); 1019 dp->buf = NULL; 1020 } 1021 if (dp->ni != NULL) { 1022 ieee80211_free_node(dp->ni); 1023 dp->ni = NULL; 1024 } 1025 } 1026 } 1027 1028 static struct rsu_data * 1029 _rsu_getbuf(struct rsu_softc *sc) 1030 { 1031 struct rsu_data *bf; 1032 1033 bf = STAILQ_FIRST(&sc->sc_tx_inactive); 1034 if (bf != NULL) 1035 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next); 1036 else 1037 bf = NULL; 1038 return (bf); 1039 } 1040 1041 static struct rsu_data * 1042 rsu_getbuf(struct rsu_softc *sc) 1043 { 1044 struct rsu_data *bf; 1045 1046 RSU_ASSERT_LOCKED(sc); 1047 1048 bf = _rsu_getbuf(sc); 1049 if (bf == NULL) { 1050 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: no buffers\n", __func__); 1051 } 1052 return (bf); 1053 } 1054 1055 static void 1056 rsu_freebuf(struct rsu_softc *sc, struct rsu_data *bf) 1057 { 1058 1059 RSU_ASSERT_LOCKED(sc); 1060 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, bf, next); 1061 } 1062 1063 static int 1064 rsu_write_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1065 int len) 1066 { 1067 usb_device_request_t req; 1068 1069 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1070 req.bRequest = R92S_REQ_REGS; 1071 USETW(req.wValue, addr); 1072 USETW(req.wIndex, 0); 1073 USETW(req.wLength, len); 1074 1075 return (rsu_do_request(sc, &req, buf)); 1076 } 1077 1078 static void 1079 rsu_write_1(struct rsu_softc *sc, uint16_t addr, uint8_t val) 1080 { 1081 rsu_write_region_1(sc, addr, &val, 1); 1082 } 1083 1084 static void 1085 rsu_write_2(struct rsu_softc *sc, uint16_t addr, uint16_t val) 1086 { 1087 val = htole16(val); 1088 rsu_write_region_1(sc, addr, (uint8_t *)&val, 2); 1089 } 1090 1091 static void 1092 rsu_write_4(struct rsu_softc *sc, uint16_t addr, uint32_t val) 1093 { 1094 val = htole32(val); 1095 rsu_write_region_1(sc, addr, (uint8_t *)&val, 4); 1096 } 1097 1098 static int 1099 rsu_read_region_1(struct rsu_softc *sc, uint16_t addr, uint8_t *buf, 1100 int len) 1101 { 1102 usb_device_request_t req; 1103 1104 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1105 req.bRequest = R92S_REQ_REGS; 1106 USETW(req.wValue, addr); 1107 USETW(req.wIndex, 0); 1108 USETW(req.wLength, len); 1109 1110 return (rsu_do_request(sc, &req, buf)); 1111 } 1112 1113 static uint8_t 1114 rsu_read_1(struct rsu_softc *sc, uint16_t addr) 1115 { 1116 uint8_t val; 1117 1118 if (rsu_read_region_1(sc, addr, &val, 1) != 0) 1119 return (0xff); 1120 return (val); 1121 } 1122 1123 static uint16_t 1124 rsu_read_2(struct rsu_softc *sc, uint16_t addr) 1125 { 1126 uint16_t val; 1127 1128 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 2) != 0) 1129 return (0xffff); 1130 return (le16toh(val)); 1131 } 1132 1133 static uint32_t 1134 rsu_read_4(struct rsu_softc *sc, uint16_t addr) 1135 { 1136 uint32_t val; 1137 1138 if (rsu_read_region_1(sc, addr, (uint8_t *)&val, 4) != 0) 1139 return (0xffffffff); 1140 return (le32toh(val)); 1141 } 1142 1143 static int 1144 rsu_fw_iocmd(struct rsu_softc *sc, uint32_t iocmd) 1145 { 1146 int ntries; 1147 1148 rsu_write_4(sc, R92S_IOCMD_CTRL, iocmd); 1149 rsu_ms_delay(sc, 1); 1150 for (ntries = 0; ntries < 50; ntries++) { 1151 if (rsu_read_4(sc, R92S_IOCMD_CTRL) == 0) 1152 return (0); 1153 rsu_ms_delay(sc, 1); 1154 } 1155 return (ETIMEDOUT); 1156 } 1157 1158 static uint8_t 1159 rsu_efuse_read_1(struct rsu_softc *sc, uint16_t addr) 1160 { 1161 uint32_t reg; 1162 int ntries; 1163 1164 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1165 reg = RW(reg, R92S_EFUSE_CTRL_ADDR, addr); 1166 reg &= ~R92S_EFUSE_CTRL_VALID; 1167 rsu_write_4(sc, R92S_EFUSE_CTRL, reg); 1168 /* Wait for read operation to complete. */ 1169 for (ntries = 0; ntries < 100; ntries++) { 1170 reg = rsu_read_4(sc, R92S_EFUSE_CTRL); 1171 if (reg & R92S_EFUSE_CTRL_VALID) 1172 return (MS(reg, R92S_EFUSE_CTRL_DATA)); 1173 rsu_ms_delay(sc, 1); 1174 } 1175 device_printf(sc->sc_dev, 1176 "could not read efuse byte at address 0x%x\n", addr); 1177 return (0xff); 1178 } 1179 1180 static int 1181 rsu_read_rom(struct rsu_softc *sc) 1182 { 1183 uint8_t *rom = sc->rom; 1184 uint16_t addr = 0; 1185 uint32_t reg; 1186 uint8_t off, msk; 1187 int i; 1188 1189 /* Make sure that ROM type is eFuse and that autoload succeeded. */ 1190 reg = rsu_read_1(sc, R92S_EE_9346CR); 1191 if ((reg & (R92S_9356SEL | R92S_EEPROM_EN)) != R92S_EEPROM_EN) 1192 return (EIO); 1193 1194 /* Turn on 2.5V to prevent eFuse leakage. */ 1195 reg = rsu_read_1(sc, R92S_EFUSE_TEST + 3); 1196 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg | 0x80); 1197 rsu_ms_delay(sc, 1); 1198 rsu_write_1(sc, R92S_EFUSE_TEST + 3, reg & ~0x80); 1199 1200 /* Read full ROM image. */ 1201 memset(&sc->rom, 0xff, sizeof(sc->rom)); 1202 while (addr < 512) { 1203 reg = rsu_efuse_read_1(sc, addr); 1204 if (reg == 0xff) 1205 break; 1206 addr++; 1207 off = reg >> 4; 1208 msk = reg & 0xf; 1209 for (i = 0; i < 4; i++) { 1210 if (msk & (1 << i)) 1211 continue; 1212 rom[off * 8 + i * 2 + 0] = 1213 rsu_efuse_read_1(sc, addr); 1214 addr++; 1215 rom[off * 8 + i * 2 + 1] = 1216 rsu_efuse_read_1(sc, addr); 1217 addr++; 1218 } 1219 } 1220 #ifdef USB_DEBUG 1221 if (rsu_debug & RSU_DEBUG_RESET) { 1222 /* Dump ROM content. */ 1223 printf("\n"); 1224 for (i = 0; i < sizeof(sc->rom); i++) 1225 printf("%02x:", rom[i]); 1226 printf("\n"); 1227 } 1228 #endif 1229 return (0); 1230 } 1231 1232 static int 1233 rsu_fw_cmd(struct rsu_softc *sc, uint8_t code, void *buf, int len) 1234 { 1235 const uint8_t which = RSU_H2C_ENDPOINT; 1236 struct rsu_data *data; 1237 struct r92s_tx_desc *txd; 1238 struct r92s_fw_cmd_hdr *cmd; 1239 int cmdsz; 1240 int xferlen; 1241 1242 RSU_ASSERT_LOCKED(sc); 1243 1244 data = rsu_getbuf(sc); 1245 if (data == NULL) 1246 return (ENOMEM); 1247 1248 /* Blank the entire payload, just to be safe */ 1249 memset(data->buf, '\0', RSU_TXBUFSZ); 1250 1251 /* Round-up command length to a multiple of 8 bytes. */ 1252 /* XXX TODO: is this required? */ 1253 cmdsz = (len + 7) & ~7; 1254 1255 xferlen = sizeof(*txd) + sizeof(*cmd) + cmdsz; 1256 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 1257 memset(data->buf, 0, xferlen); 1258 1259 /* Setup Tx descriptor. */ 1260 txd = (struct r92s_tx_desc *)data->buf; 1261 txd->txdw0 = htole32( 1262 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 1263 SM(R92S_TXDW0_PKTLEN, sizeof(*cmd) + cmdsz) | 1264 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 1265 txd->txdw1 = htole32(SM(R92S_TXDW1_QSEL, R92S_TXDW1_QSEL_H2C)); 1266 1267 /* Setup command header. */ 1268 cmd = (struct r92s_fw_cmd_hdr *)&txd[1]; 1269 cmd->len = htole16(cmdsz); 1270 cmd->code = code; 1271 cmd->seq = sc->cmd_seq; 1272 sc->cmd_seq = (sc->cmd_seq + 1) & 0x7f; 1273 1274 /* Copy command payload. */ 1275 memcpy(&cmd[1], buf, len); 1276 1277 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FWCMD, 1278 "%s: Tx cmd code=0x%x len=0x%x\n", 1279 __func__, code, cmdsz); 1280 data->buflen = xferlen; 1281 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 1282 usbd_transfer_start(sc->sc_xfer[which]); 1283 1284 return (0); 1285 } 1286 1287 /* ARGSUSED */ 1288 static void 1289 rsu_calib_task(void *arg, int pending __unused) 1290 { 1291 struct rsu_softc *sc = arg; 1292 #ifdef notyet 1293 uint32_t reg; 1294 #endif 1295 1296 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: running calibration task\n", 1297 __func__); 1298 1299 RSU_LOCK(sc); 1300 #ifdef notyet 1301 /* Read WPS PBC status. */ 1302 rsu_write_1(sc, R92S_MAC_PINMUX_CTRL, 1303 R92S_GPIOMUX_EN | SM(R92S_GPIOSEL_GPIO, R92S_GPIOSEL_GPIO_JTAG)); 1304 rsu_write_1(sc, R92S_GPIO_IO_SEL, 1305 rsu_read_1(sc, R92S_GPIO_IO_SEL) & ~R92S_GPIO_WPS); 1306 reg = rsu_read_1(sc, R92S_GPIO_CTRL); 1307 if (reg != 0xff && (reg & R92S_GPIO_WPS)) 1308 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "WPS PBC is pushed\n"); 1309 #endif 1310 /* Read current signal level. */ 1311 if (rsu_fw_iocmd(sc, 0xf4000001) == 0) { 1312 sc->sc_currssi = rsu_read_4(sc, R92S_IOCMD_DATA); 1313 RSU_DPRINTF(sc, RSU_DEBUG_CALIB, "%s: RSSI=%d (%d)\n", 1314 __func__, sc->sc_currssi, 1315 rsu_hwrssi_to_rssi(sc, sc->sc_currssi)); 1316 } 1317 if (sc->sc_calibrating) 1318 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, hz); 1319 RSU_UNLOCK(sc); 1320 } 1321 1322 static void 1323 rsu_tx_task(void *arg, int pending __unused) 1324 { 1325 struct rsu_softc *sc = arg; 1326 1327 RSU_LOCK(sc); 1328 _rsu_start(sc); 1329 RSU_UNLOCK(sc); 1330 } 1331 1332 #define RSU_PWR_UNKNOWN 0x0 1333 #define RSU_PWR_ACTIVE 0x1 1334 #define RSU_PWR_OFF 0x2 1335 #define RSU_PWR_SLEEP 0x3 1336 1337 /* 1338 * Set the current power state. 1339 * 1340 * The rtlwifi code doesn't do this so aggressively; it 1341 * waits for an idle period after association with 1342 * no traffic before doing this. 1343 * 1344 * For now - it's on in all states except RUN, and 1345 * in RUN it'll transition to allow sleep. 1346 */ 1347 1348 struct r92s_pwr_cmd { 1349 uint8_t mode; 1350 uint8_t smart_ps; 1351 uint8_t bcn_pass_time; 1352 }; 1353 1354 static int 1355 rsu_set_fw_power_state(struct rsu_softc *sc, int state) 1356 { 1357 struct r92s_set_pwr_mode cmd; 1358 //struct r92s_pwr_cmd cmd; 1359 int error; 1360 1361 RSU_ASSERT_LOCKED(sc); 1362 1363 /* only change state if required */ 1364 if (sc->sc_curpwrstate == state) 1365 return (0); 1366 1367 memset(&cmd, 0, sizeof(cmd)); 1368 1369 switch (state) { 1370 case RSU_PWR_ACTIVE: 1371 /* Force the hardware awake */ 1372 rsu_write_1(sc, R92S_USB_HRPWM, 1373 R92S_USB_HRPWM_PS_ST_ACTIVE | R92S_USB_HRPWM_PS_ALL_ON); 1374 cmd.mode = R92S_PS_MODE_ACTIVE; 1375 break; 1376 case RSU_PWR_SLEEP: 1377 cmd.mode = R92S_PS_MODE_DTIM; /* XXX configurable? */ 1378 cmd.smart_ps = 1; /* XXX 2 if doing p2p */ 1379 cmd.bcn_pass_time = 5; /* in 100mS usb.c, linux/rtlwifi */ 1380 break; 1381 case RSU_PWR_OFF: 1382 cmd.mode = R92S_PS_MODE_RADIOOFF; 1383 break; 1384 default: 1385 device_printf(sc->sc_dev, "%s: unknown ps mode (%d)\n", 1386 __func__, 1387 state); 1388 return (ENXIO); 1389 } 1390 1391 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1392 "%s: setting ps mode to %d (mode %d)\n", 1393 __func__, state, cmd.mode); 1394 error = rsu_fw_cmd(sc, R92S_CMD_SET_PWR_MODE, &cmd, sizeof(cmd)); 1395 if (error == 0) 1396 sc->sc_curpwrstate = state; 1397 1398 return (error); 1399 } 1400 1401 static void 1402 rsu_set_led(struct rsu_softc *sc, int on) 1403 { 1404 rsu_write_1(sc, R92S_LEDCFG, 1405 (rsu_read_1(sc, R92S_LEDCFG) & 0xf0) | (!on << 3)); 1406 } 1407 1408 static int 1409 rsu_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, 1410 int arg) 1411 { 1412 struct ieee80211com *ic = vap->iv_ic; 1413 struct rsu_softc *sc = ic->ic_softc; 1414 struct rsu_vap *uvp = RSU_VAP(vap); 1415 1416 if (vap->iv_state != nstate) { 1417 IEEE80211_UNLOCK(ic); 1418 RSU_LOCK(sc); 1419 1420 switch (nstate) { 1421 case IEEE80211_S_INIT: 1422 sc->sc_vap_is_running = 0; 1423 rsu_set_led(sc, 0); 1424 break; 1425 case IEEE80211_S_RUN: 1426 sc->sc_vap_is_running = 1; 1427 rsu_set_led(sc, 1); 1428 break; 1429 default: 1430 /* NOTREACHED */ 1431 break; 1432 } 1433 rsu_rxfilter_refresh(sc); 1434 1435 RSU_UNLOCK(sc); 1436 IEEE80211_LOCK(ic); 1437 } 1438 1439 return (uvp->newstate(vap, nstate, arg)); 1440 } 1441 1442 static int 1443 rsu_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1444 { 1445 struct rsu_vap *uvp = RSU_VAP(vap); 1446 struct ieee80211com *ic = vap->iv_ic; 1447 struct rsu_softc *sc = ic->ic_softc; 1448 struct ieee80211_node *ni; 1449 struct ieee80211_rateset *rs; 1450 enum ieee80211_state ostate; 1451 int error, startcal = 0; 1452 1453 ostate = vap->iv_state; 1454 RSU_DPRINTF(sc, RSU_DEBUG_STATE, "%s: %s -> %s\n", 1455 __func__, 1456 ieee80211_state_name[ostate], 1457 ieee80211_state_name[nstate]); 1458 1459 IEEE80211_UNLOCK(ic); 1460 if (ostate == IEEE80211_S_RUN) { 1461 RSU_LOCK(sc); 1462 /* Stop calibration. */ 1463 sc->sc_calibrating = 0; 1464 1465 /* Pause Tx for AC queues. */ 1466 rsu_write_1(sc, R92S_TXPAUSE, R92S_TXPAUSE_AC); 1467 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1468 1469 RSU_UNLOCK(sc); 1470 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 1471 taskqueue_drain(taskqueue_thread, &sc->tx_task); 1472 RSU_LOCK(sc); 1473 /* Disassociate from our current BSS. */ 1474 rsu_disconnect(sc); 1475 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1476 1477 /* Refresh Rx filter (may be modified by firmware). */ 1478 sc->sc_vap_is_running = 0; 1479 rsu_rxfilter_refresh(sc); 1480 1481 /* Reinstall static keys. */ 1482 if (sc->sc_running) 1483 rsu_reinit_static_keys(sc); 1484 } else 1485 RSU_LOCK(sc); 1486 switch (nstate) { 1487 case IEEE80211_S_INIT: 1488 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1489 break; 1490 case IEEE80211_S_AUTH: 1491 ni = ieee80211_ref_node(vap->iv_bss); 1492 (void) rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 1493 error = rsu_join_bss(sc, ni); 1494 ieee80211_free_node(ni); 1495 if (error != 0) { 1496 device_printf(sc->sc_dev, 1497 "could not send join command\n"); 1498 } 1499 break; 1500 case IEEE80211_S_RUN: 1501 /* Flush all AC queues. */ 1502 rsu_write_1(sc, R92S_TXPAUSE, 0); 1503 1504 ni = ieee80211_ref_node(vap->iv_bss); 1505 rs = &ni->ni_rates; 1506 /* Indicate highest supported rate. */ 1507 ni->ni_txrate = rs->rs_rates[rs->rs_nrates - 1]; 1508 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1509 ieee80211_free_node(ni); 1510 startcal = 1; 1511 break; 1512 default: 1513 break; 1514 } 1515 if (startcal != 0) { 1516 sc->sc_calibrating = 1; 1517 /* Start periodic calibration. */ 1518 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, 1519 hz); 1520 } 1521 RSU_UNLOCK(sc); 1522 IEEE80211_LOCK(ic); 1523 return (uvp->newstate(vap, nstate, arg)); 1524 } 1525 1526 static int 1527 rsu_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1528 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1529 { 1530 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1531 int is_checked = 0; 1532 1533 if (&vap->iv_nw_keys[0] <= k && 1534 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1535 *keyix = ieee80211_crypto_get_key_wepidx(vap, k); 1536 } else { 1537 if (vap->iv_opmode != IEEE80211_M_STA) { 1538 *keyix = 0; 1539 /* TODO: obtain keyix from node id */ 1540 is_checked = 1; 1541 k->wk_flags |= IEEE80211_KEY_SWCRYPT; 1542 } else 1543 *keyix = R92S_MACID_BSS; 1544 } 1545 1546 if (!is_checked) { 1547 RSU_LOCK(sc); 1548 if (isset(sc->keys_bmap, *keyix)) { 1549 device_printf(sc->sc_dev, 1550 "%s: key slot %d is already used!\n", 1551 __func__, *keyix); 1552 RSU_UNLOCK(sc); 1553 return (0); 1554 } 1555 setbit(sc->keys_bmap, *keyix); 1556 RSU_UNLOCK(sc); 1557 } 1558 1559 *rxkeyix = *keyix; 1560 1561 return (1); 1562 } 1563 1564 static int 1565 rsu_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k, 1566 int set) 1567 { 1568 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1569 int ret; 1570 1571 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 1572 /* Not for us. */ 1573 return (1); 1574 } 1575 1576 /* Handle group keys. */ 1577 if (&vap->iv_nw_keys[0] <= k && 1578 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 1579 KASSERT(k->wk_keyix < nitems(sc->group_keys), 1580 ("keyix %u > %zu\n", k->wk_keyix, nitems(sc->group_keys))); 1581 1582 RSU_LOCK(sc); 1583 sc->group_keys[k->wk_keyix] = (set ? k : NULL); 1584 if (!sc->sc_running) { 1585 /* Static keys will be set during device startup. */ 1586 RSU_UNLOCK(sc); 1587 return (1); 1588 } 1589 1590 if (set) 1591 ret = rsu_set_key_group(sc, k); 1592 else 1593 ret = rsu_delete_key(sc, k->wk_keyix); 1594 RSU_UNLOCK(sc); 1595 1596 return (!ret); 1597 } 1598 1599 if (set) { 1600 /* wait for pending key removal */ 1601 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 1602 1603 RSU_LOCK(sc); 1604 ret = rsu_set_key_pair(sc, k); 1605 RSU_UNLOCK(sc); 1606 } else { 1607 RSU_DELKEY_BMAP_LOCK(sc); 1608 setbit(sc->free_keys_bmap, k->wk_keyix); 1609 RSU_DELKEY_BMAP_UNLOCK(sc); 1610 1611 /* workaround ieee80211_node_delucastkey() locking */ 1612 taskqueue_enqueue(taskqueue_thread, &sc->del_key_task); 1613 ret = 0; /* fake success */ 1614 } 1615 1616 return (!ret); 1617 } 1618 1619 static int 1620 rsu_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1621 { 1622 return (rsu_process_key(vap, k, 1)); 1623 } 1624 1625 static int 1626 rsu_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1627 { 1628 return (rsu_process_key(vap, k, 0)); 1629 } 1630 1631 static int 1632 rsu_cam_read(struct rsu_softc *sc, uint8_t addr, uint32_t *val) 1633 { 1634 int ntries; 1635 1636 rsu_write_4(sc, R92S_CAMCMD, 1637 R92S_CAMCMD_POLLING | SM(R92S_CAMCMD_ADDR, addr)); 1638 for (ntries = 0; ntries < 10; ntries++) { 1639 if (!(rsu_read_4(sc, R92S_CAMCMD) & R92S_CAMCMD_POLLING)) 1640 break; 1641 1642 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1643 } 1644 if (ntries == 10) { 1645 device_printf(sc->sc_dev, 1646 "%s: cannot read CAM entry at address %02X\n", 1647 __func__, addr); 1648 return (ETIMEDOUT); 1649 } 1650 1651 *val = rsu_read_4(sc, R92S_CAMREAD); 1652 1653 return (0); 1654 } 1655 1656 static void 1657 rsu_cam_write(struct rsu_softc *sc, uint8_t addr, uint32_t data) 1658 { 1659 1660 rsu_write_4(sc, R92S_CAMWRITE, data); 1661 rsu_write_4(sc, R92S_CAMCMD, 1662 R92S_CAMCMD_POLLING | R92S_CAMCMD_WRITE | 1663 SM(R92S_CAMCMD_ADDR, addr)); 1664 } 1665 1666 static int 1667 rsu_key_check(struct rsu_softc *sc, ieee80211_keyix keyix, int is_valid) 1668 { 1669 uint32_t val; 1670 int error, ntries; 1671 1672 for (ntries = 0; ntries < 20; ntries++) { 1673 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1674 1675 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1676 if (error != 0) { 1677 device_printf(sc->sc_dev, 1678 "%s: cannot check key status!\n", __func__); 1679 return (error); 1680 } 1681 if (((val & R92S_CAM_VALID) == 0) ^ is_valid) 1682 break; 1683 } 1684 if (ntries == 20) { 1685 device_printf(sc->sc_dev, 1686 "%s: key %d is %s marked as valid, rejecting request\n", 1687 __func__, keyix, is_valid ? "not" : "still"); 1688 return (EIO); 1689 } 1690 1691 return (0); 1692 } 1693 1694 /* 1695 * Map net80211 cipher to RTL8712 security mode. 1696 */ 1697 static uint8_t 1698 rsu_crypto_mode(struct rsu_softc *sc, u_int cipher, int keylen) 1699 { 1700 switch (cipher) { 1701 case IEEE80211_CIPHER_WEP: 1702 return keylen < 8 ? R92S_KEY_ALGO_WEP40 : R92S_KEY_ALGO_WEP104; 1703 case IEEE80211_CIPHER_TKIP: 1704 return R92S_KEY_ALGO_TKIP; 1705 case IEEE80211_CIPHER_AES_CCM: 1706 return R92S_KEY_ALGO_AES; 1707 default: 1708 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1709 return R92S_KEY_ALGO_INVALID; 1710 } 1711 } 1712 1713 static int 1714 rsu_set_key_group(struct rsu_softc *sc, const struct ieee80211_key *k) 1715 { 1716 struct r92s_fw_cmd_set_key key; 1717 uint8_t algo; 1718 int error; 1719 1720 RSU_ASSERT_LOCKED(sc); 1721 1722 /* Map net80211 cipher to HW crypto algorithm. */ 1723 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1724 if (algo == R92S_KEY_ALGO_INVALID) 1725 return (EINVAL); 1726 1727 memset(&key, 0, sizeof(key)); 1728 key.algo = algo; 1729 key.cam_id = k->wk_keyix; 1730 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1731 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1732 1733 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1734 "%s: keyix %u, group %u, algo %u/%u, flags %04X, len %u, " 1735 "macaddr %s\n", __func__, key.cam_id, key.grpkey, 1736 k->wk_cipher->ic_cipher, key.algo, k->wk_flags, k->wk_keylen, 1737 ether_sprintf(k->wk_macaddr)); 1738 1739 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1740 if (error != 0) { 1741 device_printf(sc->sc_dev, 1742 "%s: cannot send firmware command, error %d\n", 1743 __func__, error); 1744 return (error); 1745 } 1746 1747 return (rsu_key_check(sc, k->wk_keyix, 1)); 1748 } 1749 1750 static int 1751 rsu_set_key_pair(struct rsu_softc *sc, const struct ieee80211_key *k) 1752 { 1753 struct r92s_fw_cmd_set_key_mac key; 1754 uint8_t algo; 1755 int error; 1756 1757 RSU_ASSERT_LOCKED(sc); 1758 1759 if (!sc->sc_running) 1760 return (ESHUTDOWN); 1761 1762 /* Map net80211 cipher to HW crypto algorithm. */ 1763 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1764 if (algo == R92S_KEY_ALGO_INVALID) 1765 return (EINVAL); 1766 1767 memset(&key, 0, sizeof(key)); 1768 key.algo = algo; 1769 memcpy(key.macaddr, k->wk_macaddr, sizeof(key.macaddr)); 1770 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1771 1772 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1773 "%s: keyix %u, algo %u/%u, flags %04X, len %u, macaddr %s\n", 1774 __func__, k->wk_keyix, k->wk_cipher->ic_cipher, key.algo, 1775 k->wk_flags, k->wk_keylen, ether_sprintf(key.macaddr)); 1776 1777 error = rsu_fw_cmd(sc, R92S_CMD_SET_STA_KEY, &key, sizeof(key)); 1778 if (error != 0) { 1779 device_printf(sc->sc_dev, 1780 "%s: cannot send firmware command, error %d\n", 1781 __func__, error); 1782 return (error); 1783 } 1784 1785 return (rsu_key_check(sc, k->wk_keyix, 1)); 1786 } 1787 1788 static int 1789 rsu_reinit_static_keys(struct rsu_softc *sc) 1790 { 1791 int i, error; 1792 1793 for (i = 0; i < nitems(sc->group_keys); i++) { 1794 if (sc->group_keys[i] != NULL) { 1795 error = rsu_set_key_group(sc, sc->group_keys[i]); 1796 if (error != 0) { 1797 device_printf(sc->sc_dev, 1798 "%s: failed to set static key %d, " 1799 "error %d\n", __func__, i, error); 1800 return (error); 1801 } 1802 } 1803 } 1804 1805 return (0); 1806 } 1807 1808 static int 1809 rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix keyix) 1810 { 1811 struct r92s_fw_cmd_set_key key; 1812 uint32_t val; 1813 int error; 1814 1815 RSU_ASSERT_LOCKED(sc); 1816 1817 if (!sc->sc_running) 1818 return (0); 1819 1820 /* check if it was automatically removed by firmware */ 1821 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1822 if (error == 0 && (val & R92S_CAM_VALID) == 0) { 1823 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1824 "%s: key %u does not exist\n", __func__, keyix); 1825 clrbit(sc->keys_bmap, keyix); 1826 return (0); 1827 } 1828 1829 memset(&key, 0, sizeof(key)); 1830 key.cam_id = keyix; 1831 1832 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1833 "%s: removing key %u\n", __func__, key.cam_id); 1834 1835 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1836 if (error != 0) { 1837 device_printf(sc->sc_dev, 1838 "%s: cannot send firmware command, error %d\n", 1839 __func__, error); 1840 goto finish; 1841 } 1842 1843 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(5)); 1844 1845 /* 1846 * Clear 'valid' bit manually (cannot be done via firmware command). 1847 * Used for key check + when firmware command cannot be sent. 1848 */ 1849 finish: 1850 rsu_cam_write(sc, R92S_CAM_CTL0(keyix), 0); 1851 1852 clrbit(sc->keys_bmap, keyix); 1853 1854 return (rsu_key_check(sc, keyix, 0)); 1855 } 1856 1857 static void 1858 rsu_delete_key_pair_cb(void *arg, int pending __unused) 1859 { 1860 struct rsu_softc *sc = arg; 1861 int i; 1862 1863 RSU_DELKEY_BMAP_LOCK(sc); 1864 for (i = IEEE80211_WEP_NKID; i < R92S_CAM_ENTRY_LIMIT; i++) { 1865 if (isset(sc->free_keys_bmap, i)) { 1866 RSU_DELKEY_BMAP_UNLOCK(sc); 1867 1868 RSU_LOCK(sc); 1869 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1870 "%s: calling rsu_delete_key() with keyix = %d\n", 1871 __func__, i); 1872 (void) rsu_delete_key(sc, i); 1873 RSU_UNLOCK(sc); 1874 1875 RSU_DELKEY_BMAP_LOCK(sc); 1876 clrbit(sc->free_keys_bmap, i); 1877 1878 /* bmap can be changed */ 1879 i = IEEE80211_WEP_NKID - 1; 1880 continue; 1881 } 1882 } 1883 RSU_DELKEY_BMAP_UNLOCK(sc); 1884 } 1885 1886 static int 1887 rsu_site_survey(struct rsu_softc *sc, struct ieee80211_scan_ssid *ssid) 1888 { 1889 struct r92s_fw_cmd_sitesurvey cmd; 1890 1891 RSU_ASSERT_LOCKED(sc); 1892 1893 memset(&cmd, 0, sizeof(cmd)); 1894 /* TODO: passive channels? */ 1895 if (sc->sc_active_scan) 1896 cmd.active = htole32(1); 1897 cmd.limit = htole32(48); 1898 1899 if (ssid != NULL) { 1900 sc->sc_extra_scan = 1; 1901 cmd.ssidlen = htole32(ssid->len); 1902 memcpy(cmd.ssid, ssid->ssid, ssid->len); 1903 } 1904 #ifdef USB_DEBUG 1905 if (rsu_debug & (RSU_DEBUG_SCAN | RSU_DEBUG_FWCMD)) { 1906 device_printf(sc->sc_dev, 1907 "sending site survey command, active %d", 1908 le32toh(cmd.active)); 1909 if (ssid != NULL) { 1910 printf(", ssid: "); 1911 ieee80211_print_essid(cmd.ssid, le32toh(cmd.ssidlen)); 1912 } 1913 printf("\n"); 1914 } 1915 #endif 1916 return (rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd))); 1917 } 1918 1919 static int 1920 rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1921 { 1922 struct ieee80211com *ic = &sc->sc_ic; 1923 struct ieee80211vap *vap = ni->ni_vap; 1924 struct ndis_wlan_bssid_ex *bss; 1925 struct ndis_802_11_fixed_ies *fixed; 1926 struct r92s_fw_cmd_auth auth; 1927 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1928 uint8_t *frm; 1929 uint8_t opmode; 1930 int error; 1931 1932 RSU_ASSERT_LOCKED(sc); 1933 1934 /* Let the FW decide the opmode based on the capinfo field. */ 1935 opmode = NDIS802_11AUTOUNKNOWN; 1936 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1937 "%s: setting operating mode to %d\n", 1938 __func__, opmode); 1939 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1940 if (error != 0) 1941 return (error); 1942 1943 memset(&auth, 0, sizeof(auth)); 1944 if (vap->iv_flags & IEEE80211_F_WPA) { 1945 auth.mode = R92S_AUTHMODE_WPA; 1946 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1947 } else 1948 auth.mode = R92S_AUTHMODE_OPEN; 1949 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1950 "%s: setting auth mode to %d\n", 1951 __func__, auth.mode); 1952 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1953 if (error != 0) 1954 return (error); 1955 1956 memset(buf, 0, sizeof(buf)); 1957 bss = (struct ndis_wlan_bssid_ex *)buf; 1958 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1959 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1960 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1961 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1962 bss->privacy = htole32(1); 1963 bss->rssi = htole32(ni->ni_avgrssi); 1964 if (ic->ic_curmode == IEEE80211_MODE_11B) 1965 bss->networktype = htole32(NDIS802_11DS); 1966 else 1967 bss->networktype = htole32(NDIS802_11OFDM24); 1968 bss->config.len = htole32(sizeof(bss->config)); 1969 bss->config.bintval = htole32(ni->ni_intval); 1970 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1971 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1972 /* XXX verify how this is supposed to look! */ 1973 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1974 ni->ni_rates.rs_nrates); 1975 /* Write the fixed fields of the beacon frame. */ 1976 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1977 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1978 fixed->bintval = htole16(ni->ni_intval); 1979 fixed->capabilities = htole16(ni->ni_capinfo); 1980 /* Write IEs to be included in the association request. */ 1981 frm = (uint8_t *)&fixed[1]; 1982 frm = ieee80211_add_rsn(frm, vap); 1983 frm = ieee80211_add_wpa(frm, vap); 1984 frm = ieee80211_add_qos(frm, ni); 1985 if ((ic->ic_flags & IEEE80211_F_WME) && 1986 (ni->ni_ies.wme_ie != NULL)) 1987 frm = ieee80211_add_wme_info(frm, &ic->ic_wme); 1988 if (ni->ni_flags & IEEE80211_NODE_HT) { 1989 frm = ieee80211_add_htcap(frm, ni); 1990 frm = ieee80211_add_htinfo(frm, ni); 1991 } 1992 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1993 bss->len = htole32(((frm - buf) + 3) & ~3); 1994 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 1995 "%s: sending join bss command to %s chan %d\n", 1996 __func__, 1997 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 1998 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 1999 } 2000 2001 static int 2002 rsu_disconnect(struct rsu_softc *sc) 2003 { 2004 uint32_t zero = 0; /* :-) */ 2005 2006 /* Disassociate from our current BSS. */ 2007 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2008 "%s: sending disconnect command\n", __func__); 2009 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 2010 } 2011 2012 /* 2013 * Map the hardware provided RSSI value to a signal level. 2014 * For the most part it's just something we divide by and cap 2015 * so it doesn't overflow the representation by net80211. 2016 */ 2017 static int 2018 rsu_hwrssi_to_rssi(struct rsu_softc *sc, int hw_rssi) 2019 { 2020 int v; 2021 2022 if (hw_rssi == 0) 2023 return (0); 2024 v = hw_rssi >> 4; 2025 if (v > 80) 2026 v = 80; 2027 return (v); 2028 } 2029 2030 CTASSERT(MCLBYTES > sizeof(struct ieee80211_frame)); 2031 2032 static void 2033 rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 2034 { 2035 struct ieee80211com *ic = &sc->sc_ic; 2036 struct ieee80211_frame *wh; 2037 struct ndis_wlan_bssid_ex *bss; 2038 struct ieee80211_rx_stats rxs; 2039 struct mbuf *m; 2040 uint32_t ieslen; 2041 uint32_t pktlen; 2042 2043 if (__predict_false(len < sizeof(*bss))) 2044 return; 2045 bss = (struct ndis_wlan_bssid_ex *)buf; 2046 ieslen = le32toh(bss->ieslen); 2047 /* range check length of information element */ 2048 if (__predict_false(ieslen > (uint32_t)(len - sizeof(*bss)))) 2049 return; 2050 2051 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2052 "%s: found BSS %s: len=%d chan=%d inframode=%d " 2053 "networktype=%d privacy=%d, RSSI=%d\n", 2054 __func__, 2055 ether_sprintf(bss->macaddr), ieslen, 2056 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 2057 le32toh(bss->networktype), le32toh(bss->privacy), 2058 le32toh(bss->rssi)); 2059 2060 /* Build a fake beacon frame to let net80211 do all the parsing. */ 2061 /* XXX TODO: just call the new scan API methods! */ 2062 if (__predict_false(ieslen > (size_t)(MCLBYTES - sizeof(*wh)))) 2063 return; 2064 pktlen = sizeof(*wh) + ieslen; 2065 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2066 if (__predict_false(m == NULL)) 2067 return; 2068 wh = mtod(m, struct ieee80211_frame *); 2069 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2070 IEEE80211_FC0_SUBTYPE_BEACON; 2071 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2072 USETW(wh->i_dur, 0); 2073 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 2074 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 2075 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 2076 *(uint16_t *)wh->i_seq = 0; 2077 memcpy(&wh[1], (uint8_t *)&bss[1], ieslen); 2078 2079 /* Finalize mbuf. */ 2080 m->m_pkthdr.len = m->m_len = pktlen; 2081 2082 /* Set channel flags for input path */ 2083 bzero(&rxs, sizeof(rxs)); 2084 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 2085 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2086 rxs.c_ieee = le32toh(bss->config.dsconfig); 2087 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 2088 /* This is a number from 0..100; so let's just divide it down a bit */ 2089 rxs.c_rssi = le32toh(bss->rssi) / 2; 2090 rxs.c_nf = -96; 2091 if (ieee80211_add_rx_params(m, &rxs) == 0) 2092 return; 2093 2094 /* XXX avoid a LOR */ 2095 RSU_UNLOCK(sc); 2096 ieee80211_input_mimo_all(ic, m); 2097 RSU_LOCK(sc); 2098 } 2099 2100 static void 2101 rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 2102 { 2103 struct ieee80211com *ic = &sc->sc_ic; 2104 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2105 struct ieee80211_node *ni = vap->iv_bss; 2106 struct r92s_event_join_bss *rsp; 2107 uint32_t tmp; 2108 int res; 2109 2110 if (__predict_false(len < sizeof(*rsp))) 2111 return; 2112 rsp = (struct r92s_event_join_bss *)buf; 2113 res = (int)le32toh(rsp->join_res); 2114 2115 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2116 "%s: Rx join BSS event len=%d res=%d\n", 2117 __func__, len, res); 2118 2119 /* 2120 * XXX Don't do this; there's likely a better way to tell 2121 * the caller we failed. 2122 */ 2123 if (res <= 0) { 2124 RSU_UNLOCK(sc); 2125 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2126 RSU_LOCK(sc); 2127 return; 2128 } 2129 2130 tmp = le32toh(rsp->associd); 2131 if (tmp >= vap->iv_max_aid) { 2132 RSU_DPRINTF(sc, RSU_DEBUG_ANY, "Assoc ID overflow\n"); 2133 tmp = 1; 2134 } 2135 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2136 "%s: associated with %s associd=%d\n", 2137 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 2138 /* XXX is this required? What's the top two bits for again? */ 2139 ni->ni_associd = tmp | 0xc000; 2140 2141 /* Refresh Rx filter (was changed by firmware). */ 2142 sc->sc_vap_is_running = 1; 2143 rsu_rxfilter_refresh(sc); 2144 2145 RSU_UNLOCK(sc); 2146 ieee80211_new_state(vap, IEEE80211_S_RUN, 2147 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 2148 RSU_LOCK(sc); 2149 } 2150 2151 static void 2152 rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 2153 { 2154 struct ieee80211com *ic = &sc->sc_ic; 2155 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2156 struct r92s_add_ba_event *ba = (void *) buf; 2157 struct ieee80211_node *ni; 2158 2159 if (len < sizeof(*ba)) { 2160 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 2161 return; 2162 } 2163 2164 if (vap == NULL) 2165 return; 2166 2167 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: mac=%s, tid=%d, ssn=%d\n", 2168 __func__, 2169 ether_sprintf(ba->mac_addr), 2170 (int) ba->tid, 2171 (int) le16toh(ba->ssn)); 2172 2173 /* XXX do node lookup; this is STA specific */ 2174 2175 ni = ieee80211_ref_node(vap->iv_bss); 2176 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 2177 ieee80211_free_node(ni); 2178 } 2179 2180 static void 2181 rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 2182 { 2183 struct ieee80211com *ic = &sc->sc_ic; 2184 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2185 2186 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2187 "%s: Rx event code=%d len=%d\n", __func__, code, len); 2188 switch (code) { 2189 case R92S_EVT_SURVEY: 2190 rsu_event_survey(sc, buf, len); 2191 break; 2192 case R92S_EVT_SURVEY_DONE: 2193 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2194 "%s: %s scan done, found %d BSS\n", 2195 __func__, sc->sc_extra_scan ? "direct" : "broadcast", 2196 le32toh(*(uint32_t *)buf)); 2197 if (sc->sc_extra_scan == 1) { 2198 /* Send broadcast probe request. */ 2199 sc->sc_extra_scan = 0; 2200 if (vap != NULL && rsu_site_survey(sc, NULL) != 0) { 2201 RSU_UNLOCK(sc); 2202 ieee80211_cancel_scan(vap); 2203 RSU_LOCK(sc); 2204 } 2205 break; 2206 } 2207 if (vap != NULL) { 2208 RSU_UNLOCK(sc); 2209 ieee80211_scan_done(vap); 2210 RSU_LOCK(sc); 2211 } 2212 break; 2213 case R92S_EVT_JOIN_BSS: 2214 if (vap->iv_state == IEEE80211_S_AUTH) 2215 rsu_event_join_bss(sc, buf, len); 2216 break; 2217 case R92S_EVT_DEL_STA: 2218 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 2219 "%s: disassociated from %s\n", __func__, 2220 ether_sprintf(buf)); 2221 if (vap->iv_state == IEEE80211_S_RUN && 2222 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 2223 RSU_UNLOCK(sc); 2224 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2225 RSU_LOCK(sc); 2226 } 2227 break; 2228 case R92S_EVT_WPS_PBC: 2229 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2230 "%s: WPS PBC pushed.\n", __func__); 2231 break; 2232 case R92S_EVT_FWDBG: 2233 buf[60] = '\0'; 2234 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 2235 break; 2236 case R92S_EVT_ADDBA_REQ_REPORT: 2237 rsu_event_addba_req_report(sc, buf, len); 2238 break; 2239 default: 2240 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 2241 break; 2242 } 2243 } 2244 2245 static void 2246 rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 2247 { 2248 struct r92s_fw_cmd_hdr *cmd; 2249 int cmdsz; 2250 2251 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 2252 2253 /* Skip Rx status. */ 2254 buf += sizeof(struct r92s_rx_stat); 2255 len -= sizeof(struct r92s_rx_stat); 2256 2257 /* Process all events. */ 2258 for (;;) { 2259 /* Check that command header fits. */ 2260 if (__predict_false(len < sizeof(*cmd))) 2261 break; 2262 cmd = (struct r92s_fw_cmd_hdr *)buf; 2263 /* Check that command payload fits. */ 2264 cmdsz = le16toh(cmd->len); 2265 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 2266 break; 2267 2268 /* Process firmware event. */ 2269 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 2270 2271 if (!(cmd->seq & R92S_FW_CMD_MORE)) 2272 break; 2273 buf += sizeof(*cmd) + cmdsz; 2274 len -= sizeof(*cmd) + cmdsz; 2275 } 2276 } 2277 2278 static int8_t 2279 rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 2280 { 2281 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 2282 struct r92s_rx_phystat *phy; 2283 struct r92s_rx_cck *cck; 2284 uint8_t rpt; 2285 int8_t rssi; 2286 2287 if (rate <= 3) { 2288 cck = (struct r92s_rx_cck *)physt; 2289 rpt = (cck->agc_rpt >> 6) & 0x3; 2290 rssi = cck->agc_rpt & 0x3e; 2291 rssi = cckoff[rpt] - rssi; 2292 } else { /* OFDM/HT. */ 2293 phy = (struct r92s_rx_phystat *)physt; 2294 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 2295 } 2296 return (rssi); 2297 } 2298 2299 static struct mbuf * 2300 rsu_rx_copy_to_mbuf(struct rsu_softc *sc, struct r92s_rx_stat *stat, 2301 int totlen) 2302 { 2303 struct ieee80211com *ic = &sc->sc_ic; 2304 struct mbuf *m; 2305 uint32_t rxdw0; 2306 int pktlen; 2307 2308 rxdw0 = le32toh(stat->rxdw0); 2309 if (__predict_false(rxdw0 & (R92S_RXDW0_CRCERR | R92S_RXDW0_ICVERR))) { 2310 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2311 "%s: RX flags error (%s)\n", __func__, 2312 rxdw0 & R92S_RXDW0_CRCERR ? "CRC" : "ICV"); 2313 goto fail; 2314 } 2315 2316 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2317 if (__predict_false(pktlen < sizeof (struct ieee80211_frame_ack))) { 2318 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2319 "%s: frame is too short: %d\n", __func__, pktlen); 2320 goto fail; 2321 } 2322 2323 m = m_get2(totlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2324 if (__predict_false(m == NULL)) { 2325 device_printf(sc->sc_dev, 2326 "%s: could not allocate RX mbuf, totlen %d\n", 2327 __func__, totlen); 2328 goto fail; 2329 } 2330 2331 /* Finalize mbuf. */ 2332 memcpy(mtod(m, uint8_t *), (uint8_t *)stat, totlen); 2333 m->m_pkthdr.len = m->m_len = totlen; 2334 2335 return (m); 2336 fail: 2337 counter_u64_add(ic->ic_ierrors, 1); 2338 return (NULL); 2339 } 2340 2341 static uint32_t 2342 rsu_get_tsf_low(struct rsu_softc *sc) 2343 { 2344 return (rsu_read_4(sc, R92S_TSFTR)); 2345 } 2346 2347 static uint32_t 2348 rsu_get_tsf_high(struct rsu_softc *sc) 2349 { 2350 return (rsu_read_4(sc, R92S_TSFTR + 4)); 2351 } 2352 2353 static struct ieee80211_node * 2354 rsu_rx_frame(struct rsu_softc *sc, struct mbuf *m) 2355 { 2356 struct ieee80211com *ic = &sc->sc_ic; 2357 struct ieee80211_frame_min *wh; 2358 struct ieee80211_rx_stats rxs; 2359 struct r92s_rx_stat *stat; 2360 uint32_t rxdw0, rxdw3; 2361 uint8_t cipher, rate; 2362 int infosz; 2363 int rssi; 2364 2365 stat = mtod(m, struct r92s_rx_stat *); 2366 rxdw0 = le32toh(stat->rxdw0); 2367 rxdw3 = le32toh(stat->rxdw3); 2368 2369 rate = MS(rxdw3, R92S_RXDW3_RATE); 2370 cipher = MS(rxdw0, R92S_RXDW0_CIPHER); 2371 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2372 2373 /* Get RSSI from PHY status descriptor if present. */ 2374 if (infosz != 0 && (rxdw0 & R92S_RXDW0_PHYST)) 2375 rssi = rsu_get_rssi(sc, rate, &stat[1]); 2376 else { 2377 /* Cheat and get the last calibrated RSSI */ 2378 rssi = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 2379 } 2380 2381 /* Hardware does Rx TCP checksum offload. */ 2382 /* 2383 * This flag can be set for some other 2384 * (e.g., EAPOL) frame types, so don't rely on it. 2385 */ 2386 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 2387 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2388 "%s: TCP/IP checksums: %schecked / %schecked\n", 2389 __func__, 2390 (rxdw3 & R92S_RXDW3_TCPCHKRPT) ? "" : "not ", 2391 (rxdw3 & R92S_RXDW3_IPCHKRPT) ? "" : "not "); 2392 2393 /* 2394 * 'IP header checksum valid' bit will not be set if 2395 * the frame was not checked / has incorrect checksum / 2396 * does not have checksum (IPv6). 2397 * 2398 * NB: if DF bit is not set then frame will not be checked. 2399 */ 2400 if (rxdw3 & R92S_RXDW3_IPCHKRPT) { 2401 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2402 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2403 } 2404 2405 /* 2406 * This is independent of the above check. 2407 */ 2408 if (rxdw3 & R92S_RXDW3_TCPCHKRPT) { 2409 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 2410 m->m_pkthdr.csum_flags |= CSUM_PSEUDO_HDR; 2411 m->m_pkthdr.csum_data = 0xffff; 2412 } 2413 } 2414 2415 /* RX flags */ 2416 2417 /* Set channel flags for input path */ 2418 bzero(&rxs, sizeof(rxs)); 2419 2420 /* normal RSSI */ 2421 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2422 rxs.c_rssi = rssi; 2423 rxs.c_nf = -96; 2424 2425 /* Rate */ 2426 if (rate < 12) { 2427 rxs.c_rate = ridx2rate[rate]; 2428 if (RSU_RATE_IS_CCK(rate)) 2429 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2430 else 2431 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2432 } else { 2433 rxs.c_rate = IEEE80211_RATE_MCS | (rate - 12); 2434 rxs.c_pktflags |= IEEE80211_RX_F_HT; 2435 } 2436 2437 if (ieee80211_radiotap_active(ic)) { 2438 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 2439 2440 /* Map HW rate index to 802.11 rate. */ 2441 tap->wr_flags = 0; /* TODO */ 2442 tap->wr_tsft = rsu_get_tsf_high(sc); 2443 if (le32toh(stat->tsf_low) > rsu_get_tsf_low(sc)) 2444 tap->wr_tsft--; 2445 tap->wr_tsft = (uint64_t)htole32(tap->wr_tsft) << 32; 2446 tap->wr_tsft += stat->tsf_low; 2447 2448 tap->wr_rate = rxs.c_rate; 2449 tap->wr_dbm_antsignal = rssi; 2450 }; 2451 2452 (void) ieee80211_add_rx_params(m, &rxs); 2453 2454 /* Drop descriptor. */ 2455 m_adj(m, sizeof(*stat) + infosz); 2456 wh = mtod(m, struct ieee80211_frame_min *); 2457 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 2458 cipher != R92S_KEY_ALGO_NONE) { 2459 m->m_flags |= M_WEP; 2460 } 2461 2462 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2463 "%s: Rx frame len %d, rate %d, infosz %d\n", 2464 __func__, m->m_len, rate, infosz); 2465 2466 if (m->m_len >= sizeof(*wh)) 2467 return (ieee80211_find_rxnode(ic, wh)); 2468 2469 return (NULL); 2470 } 2471 2472 static struct mbuf * 2473 rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 2474 { 2475 struct r92s_rx_stat *stat; 2476 uint32_t rxdw0; 2477 int totlen, pktlen, infosz, npkts; 2478 struct mbuf *m, *m0 = NULL, *prevm = NULL; 2479 2480 /* 2481 * don't pass packets to the ieee80211 framework if the driver isn't 2482 * RUNNING. 2483 */ 2484 if (!sc->sc_running) 2485 return (NULL); 2486 2487 /* Get the number of encapsulated frames. */ 2488 stat = (struct r92s_rx_stat *)buf; 2489 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 2490 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2491 "%s: Rx %d frames in one chunk\n", __func__, npkts); 2492 2493 /* Process all of them. */ 2494 while (npkts-- > 0) { 2495 if (__predict_false(len < sizeof(*stat))) 2496 break; 2497 stat = (struct r92s_rx_stat *)buf; 2498 rxdw0 = le32toh(stat->rxdw0); 2499 2500 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2501 if (__predict_false(pktlen == 0)) 2502 break; 2503 2504 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2505 2506 /* Make sure everything fits in xfer. */ 2507 totlen = sizeof(*stat) + infosz + pktlen; 2508 if (__predict_false(totlen > len)) 2509 break; 2510 2511 /* Process 802.11 frame. */ 2512 m = rsu_rx_copy_to_mbuf(sc, stat, totlen); 2513 if (m0 == NULL) 2514 m0 = m; 2515 if (prevm == NULL) 2516 prevm = m; 2517 else { 2518 prevm->m_next = m; 2519 prevm = m; 2520 } 2521 /* Next chunk is 128-byte aligned. */ 2522 totlen = (totlen + 127) & ~127; 2523 buf += totlen; 2524 len -= totlen; 2525 } 2526 2527 return (m0); 2528 } 2529 2530 static struct mbuf * 2531 rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data) 2532 { 2533 struct rsu_softc *sc = data->sc; 2534 struct ieee80211com *ic = &sc->sc_ic; 2535 struct r92s_rx_stat *stat; 2536 int len; 2537 2538 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 2539 2540 if (__predict_false(len < sizeof(*stat))) { 2541 RSU_DPRINTF(sc, RSU_DEBUG_RX, "xfer too short %d\n", len); 2542 counter_u64_add(ic->ic_ierrors, 1); 2543 return (NULL); 2544 } 2545 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 2546 stat = (struct r92s_rx_stat *)data->buf; 2547 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 2548 rsu_rx_multi_event(sc, data->buf, len); 2549 /* No packets to process. */ 2550 return (NULL); 2551 } else 2552 return (rsu_rx_multi_frame(sc, data->buf, len)); 2553 } 2554 2555 static void 2556 rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 2557 { 2558 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2559 struct ieee80211com *ic = &sc->sc_ic; 2560 struct ieee80211_node *ni; 2561 struct mbuf *m = NULL, *next; 2562 struct rsu_data *data; 2563 2564 RSU_ASSERT_LOCKED(sc); 2565 2566 switch (USB_GET_STATE(xfer)) { 2567 case USB_ST_TRANSFERRED: 2568 data = STAILQ_FIRST(&sc->sc_rx_active); 2569 if (data == NULL) 2570 goto tr_setup; 2571 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2572 m = rsu_rxeof(xfer, data); 2573 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2574 /* FALLTHROUGH */ 2575 case USB_ST_SETUP: 2576 tr_setup: 2577 data = STAILQ_FIRST(&sc->sc_rx_inactive); 2578 if (data == NULL) { 2579 KASSERT(m == NULL, ("mbuf isn't NULL")); 2580 return; 2581 } 2582 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 2583 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 2584 usbd_xfer_set_frame_data(xfer, 0, data->buf, 2585 usbd_xfer_max_len(xfer)); 2586 usbd_transfer_submit(xfer); 2587 /* 2588 * To avoid LOR we should unlock our private mutex here to call 2589 * ieee80211_input() because here is at the end of a USB 2590 * callback and safe to unlock. 2591 */ 2592 while (m != NULL) { 2593 next = m->m_next; 2594 m->m_next = NULL; 2595 2596 ni = rsu_rx_frame(sc, m); 2597 RSU_UNLOCK(sc); 2598 2599 if (ni != NULL) { 2600 if (ni->ni_flags & IEEE80211_NODE_HT) 2601 m->m_flags |= M_AMPDU; 2602 (void)ieee80211_input_mimo(ni, m); 2603 ieee80211_free_node(ni); 2604 } else 2605 (void)ieee80211_input_mimo_all(ic, m); 2606 2607 RSU_LOCK(sc); 2608 m = next; 2609 } 2610 break; 2611 default: 2612 /* needs it to the inactive queue due to a error. */ 2613 data = STAILQ_FIRST(&sc->sc_rx_active); 2614 if (data != NULL) { 2615 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2616 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2617 } 2618 if (error != USB_ERR_CANCELLED) { 2619 usbd_xfer_set_stall(xfer); 2620 counter_u64_add(ic->ic_ierrors, 1); 2621 goto tr_setup; 2622 } 2623 break; 2624 } 2625 2626 } 2627 2628 static void 2629 rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 2630 { 2631 #ifdef USB_DEBUG 2632 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2633 #endif 2634 2635 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 2636 __func__, 2637 data); 2638 2639 if (data->m) { 2640 /* XXX status? */ 2641 ieee80211_tx_complete(data->ni, data->m, 0); 2642 data->m = NULL; 2643 data->ni = NULL; 2644 } 2645 } 2646 2647 static void 2648 rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 2649 uint8_t which) 2650 { 2651 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2652 struct ieee80211com *ic = &sc->sc_ic; 2653 struct rsu_data *data; 2654 2655 RSU_ASSERT_LOCKED(sc); 2656 2657 switch (USB_GET_STATE(xfer)) { 2658 case USB_ST_TRANSFERRED: 2659 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2660 if (data == NULL) 2661 goto tr_setup; 2662 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 2663 __func__, data); 2664 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2665 rsu_txeof(xfer, data); 2666 rsu_freebuf(sc, data); 2667 /* FALLTHROUGH */ 2668 case USB_ST_SETUP: 2669 tr_setup: 2670 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 2671 if (data == NULL) { 2672 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2673 "%s: empty pending queue sc %p\n", __func__, sc); 2674 return; 2675 } 2676 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 2677 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 2678 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 2679 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2680 "%s: submitting transfer %p\n", 2681 __func__, 2682 data); 2683 usbd_transfer_submit(xfer); 2684 break; 2685 default: 2686 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2687 if (data != NULL) { 2688 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2689 rsu_txeof(xfer, data); 2690 rsu_freebuf(sc, data); 2691 } 2692 counter_u64_add(ic->ic_oerrors, 1); 2693 2694 if (error != USB_ERR_CANCELLED) { 2695 usbd_xfer_set_stall(xfer); 2696 goto tr_setup; 2697 } 2698 break; 2699 } 2700 2701 /* 2702 * XXX TODO: if the queue is low, flush out FF TX frames. 2703 * Remember to unlock the driver for now; net80211 doesn't 2704 * defer it for us. 2705 */ 2706 } 2707 2708 static void 2709 rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 2710 { 2711 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2712 2713 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 2714 2715 /* This kicks the TX taskqueue */ 2716 rsu_start(sc); 2717 } 2718 2719 static void 2720 rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 2721 { 2722 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2723 2724 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 2725 2726 /* This kicks the TX taskqueue */ 2727 rsu_start(sc); 2728 } 2729 2730 static void 2731 rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2732 { 2733 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2734 2735 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2736 2737 /* This kicks the TX taskqueue */ 2738 rsu_start(sc); 2739 } 2740 2741 /* 2742 * Transmit the given frame. 2743 * 2744 * This doesn't free the node or mbuf upon failure. 2745 */ 2746 static int 2747 rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2748 struct mbuf *m0, struct rsu_data *data) 2749 { 2750 const struct ieee80211_txparam *tp = ni->ni_txparms; 2751 struct ieee80211vap *vap = ni->ni_vap; 2752 struct ieee80211_frame *wh; 2753 struct ieee80211_key *k = NULL; 2754 struct r92s_tx_desc *txd; 2755 uint8_t rate, ridx, type, cipher, qos; 2756 int prio = 0; 2757 uint8_t which; 2758 int hasqos; 2759 int ismcast; 2760 int xferlen; 2761 int qid; 2762 2763 RSU_ASSERT_LOCKED(sc); 2764 2765 wh = mtod(m0, struct ieee80211_frame *); 2766 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2767 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 2768 2769 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2770 __func__, data, m0); 2771 2772 /* Choose a TX rate index. */ 2773 if (type == IEEE80211_FC0_TYPE_MGT || 2774 type == IEEE80211_FC0_TYPE_CTL || 2775 (m0->m_flags & M_EAPOL) != 0) 2776 rate = tp->mgmtrate; 2777 else if (ismcast) 2778 rate = tp->mcastrate; 2779 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 2780 rate = tp->ucastrate; 2781 else 2782 rate = 0; 2783 2784 if (rate != 0) 2785 ridx = rate2ridx(rate); 2786 2787 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2788 k = ieee80211_crypto_encap(ni, m0); 2789 if (k == NULL) { 2790 device_printf(sc->sc_dev, 2791 "ieee80211_crypto_encap returns NULL.\n"); 2792 /* XXX we don't expect the fragmented frames */ 2793 return (ENOBUFS); 2794 } 2795 wh = mtod(m0, struct ieee80211_frame *); 2796 } 2797 /* If we have QoS then use it */ 2798 /* XXX TODO: mbuf WME/PRI versus TID? */ 2799 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2800 /* Has QoS */ 2801 prio = M_WME_GETAC(m0); 2802 which = rsu_wme_ac_xfer_map[prio]; 2803 hasqos = 1; 2804 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 2805 } else { 2806 /* Non-QoS TID */ 2807 /* XXX TODO: tid=0 for non-qos TID? */ 2808 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2809 hasqos = 0; 2810 prio = 0; 2811 qos = 0; 2812 } 2813 2814 qid = rsu_ac2qid[prio]; 2815 #if 0 2816 switch (type) { 2817 case IEEE80211_FC0_TYPE_CTL: 2818 case IEEE80211_FC0_TYPE_MGT: 2819 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2820 break; 2821 default: 2822 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2823 break; 2824 } 2825 hasqos = 0; 2826 #endif 2827 2828 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2829 __func__, 2830 prio, 2831 which, 2832 hasqos); 2833 2834 /* Fill Tx descriptor. */ 2835 txd = (struct r92s_tx_desc *)data->buf; 2836 memset(txd, 0, sizeof(*txd)); 2837 2838 txd->txdw0 |= htole32( 2839 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2840 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2841 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2842 2843 txd->txdw1 |= htole32( 2844 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2845 if (!hasqos) 2846 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2847 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWENCRYPT)) { 2848 switch (k->wk_cipher->ic_cipher) { 2849 case IEEE80211_CIPHER_WEP: 2850 cipher = R92S_TXDW1_CIPHER_WEP; 2851 break; 2852 case IEEE80211_CIPHER_TKIP: 2853 cipher = R92S_TXDW1_CIPHER_TKIP; 2854 break; 2855 case IEEE80211_CIPHER_AES_CCM: 2856 cipher = R92S_TXDW1_CIPHER_AES; 2857 break; 2858 default: 2859 cipher = R92S_TXDW1_CIPHER_NONE; 2860 } 2861 txd->txdw1 |= htole32( 2862 SM(R92S_TXDW1_CIPHER, cipher) | 2863 SM(R92S_TXDW1_KEYIDX, k->wk_keyix)); 2864 } 2865 /* XXX todo: set AGGEN bit if appropriate? */ 2866 txd->txdw2 |= htole32(R92S_TXDW2_BK); 2867 if (ismcast) 2868 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2869 2870 if (!ismcast && (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 2871 IEEE80211_QOS_ACKPOLICY_NOACK)) { 2872 txd->txdw2 |= htole32(R92S_TXDW2_RTY_LMT_ENA); 2873 txd->txdw2 |= htole32(SM(R92S_TXDW2_RTY_LMT, tp->maxretry)); 2874 } 2875 2876 /* Force mgmt / mcast / ucast rate if needed. */ 2877 if (rate != 0) { 2878 /* Data rate fallback limit (max). */ 2879 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE_FB_LMT, 0x1f)); 2880 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE, ridx)); 2881 txd->txdw4 |= htole32(R92S_TXDW4_DRVRATE); 2882 } 2883 2884 /* 2885 * Firmware will use and increment the sequence number for the 2886 * specified priority. 2887 */ 2888 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2889 2890 if (ieee80211_radiotap_active_vap(vap)) { 2891 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2892 2893 tap->wt_flags = 0; 2894 ieee80211_radiotap_tx(vap, m0); 2895 } 2896 2897 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2898 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2899 2900 data->buflen = xferlen; 2901 data->ni = ni; 2902 data->m = m0; 2903 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2904 2905 /* start transfer, if any */ 2906 usbd_transfer_start(sc->sc_xfer[which]); 2907 return (0); 2908 } 2909 2910 static int 2911 rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2912 { 2913 struct rsu_softc *sc = ic->ic_softc; 2914 int error; 2915 2916 RSU_LOCK(sc); 2917 if (!sc->sc_running) { 2918 RSU_UNLOCK(sc); 2919 return (ENXIO); 2920 } 2921 2922 /* 2923 * XXX TODO: ensure that we treat 'm' as a list of frames 2924 * to transmit! 2925 */ 2926 error = mbufq_enqueue(&sc->sc_snd, m); 2927 if (error) { 2928 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2929 "%s: mbufq_enable: failed (%d)\n", 2930 __func__, 2931 error); 2932 RSU_UNLOCK(sc); 2933 return (error); 2934 } 2935 RSU_UNLOCK(sc); 2936 2937 /* This kicks the TX taskqueue */ 2938 rsu_start(sc); 2939 2940 return (0); 2941 } 2942 2943 static void 2944 rsu_drain_mbufq(struct rsu_softc *sc) 2945 { 2946 struct mbuf *m; 2947 struct ieee80211_node *ni; 2948 2949 RSU_ASSERT_LOCKED(sc); 2950 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2951 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2952 m->m_pkthdr.rcvif = NULL; 2953 ieee80211_free_node(ni); 2954 m_freem(m); 2955 } 2956 } 2957 2958 static void 2959 _rsu_start(struct rsu_softc *sc) 2960 { 2961 struct ieee80211_node *ni; 2962 struct rsu_data *bf; 2963 struct mbuf *m; 2964 2965 RSU_ASSERT_LOCKED(sc); 2966 2967 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2968 bf = rsu_getbuf(sc); 2969 if (bf == NULL) { 2970 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2971 "%s: failed to get buffer\n", __func__); 2972 mbufq_prepend(&sc->sc_snd, m); 2973 break; 2974 } 2975 2976 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2977 m->m_pkthdr.rcvif = NULL; 2978 2979 if (rsu_tx_start(sc, ni, m, bf) != 0) { 2980 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2981 "%s: failed to transmit\n", __func__); 2982 if_inc_counter(ni->ni_vap->iv_ifp, 2983 IFCOUNTER_OERRORS, 1); 2984 rsu_freebuf(sc, bf); 2985 ieee80211_free_node(ni); 2986 m_freem(m); 2987 break; 2988 } 2989 } 2990 } 2991 2992 static void 2993 rsu_start(struct rsu_softc *sc) 2994 { 2995 2996 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 2997 } 2998 2999 static int 3000 rsu_ioctl_net(struct ieee80211com *ic, u_long cmd, void *data) 3001 { 3002 struct rsu_softc *sc = ic->ic_softc; 3003 struct ifreq *ifr = (struct ifreq *)data; 3004 int error; 3005 3006 error = 0; 3007 switch (cmd) { 3008 case SIOCSIFCAP: 3009 { 3010 struct ieee80211vap *vap; 3011 int rxmask; 3012 3013 rxmask = ifr->ifr_reqcap & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3014 3015 RSU_LOCK(sc); 3016 /* Both RXCSUM bits must be set (or unset). */ 3017 if (sc->sc_rx_checksum_enable && 3018 rxmask != (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { 3019 rxmask = 0; 3020 sc->sc_rx_checksum_enable = 0; 3021 rsu_rxfilter_set(sc, R92S_RCR_TCP_OFFLD_EN, 0); 3022 } else if (!sc->sc_rx_checksum_enable && rxmask != 0) { 3023 rxmask = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 3024 sc->sc_rx_checksum_enable = 1; 3025 rsu_rxfilter_set(sc, 0, R92S_RCR_TCP_OFFLD_EN); 3026 } else { 3027 /* Nothing to do. */ 3028 RSU_UNLOCK(sc); 3029 break; 3030 } 3031 RSU_UNLOCK(sc); 3032 3033 IEEE80211_LOCK(ic); /* XXX */ 3034 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 3035 struct ifnet *ifp = vap->iv_ifp; 3036 3037 ifp->if_capenable &= 3038 ~(IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3039 ifp->if_capenable |= rxmask; 3040 } 3041 IEEE80211_UNLOCK(ic); 3042 break; 3043 } 3044 default: 3045 error = ENOTTY; /* for net80211 */ 3046 break; 3047 } 3048 3049 return (error); 3050 } 3051 3052 static void 3053 rsu_parent(struct ieee80211com *ic) 3054 { 3055 struct rsu_softc *sc = ic->ic_softc; 3056 3057 if (ic->ic_nrunning > 0) { 3058 if (rsu_init(sc) == 0) 3059 ieee80211_start_all(ic); 3060 else { 3061 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3062 if (vap != NULL) 3063 ieee80211_stop(vap); 3064 } 3065 } else 3066 rsu_stop(sc); 3067 } 3068 3069 /* 3070 * Power on sequence for A-cut adapters. 3071 */ 3072 static void 3073 rsu_power_on_acut(struct rsu_softc *sc) 3074 { 3075 uint32_t reg; 3076 3077 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3078 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3079 3080 /* Enable AFE macro block's bandgap and Mbias. */ 3081 rsu_write_1(sc, R92S_AFE_MISC, 3082 rsu_read_1(sc, R92S_AFE_MISC) | 3083 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 3084 /* Enable LDOA15 block. */ 3085 rsu_write_1(sc, R92S_LDOA15_CTRL, 3086 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3087 3088 rsu_write_1(sc, R92S_SPS1_CTRL, 3089 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 3090 rsu_ms_delay(sc, 2000); 3091 /* Enable switch regulator block. */ 3092 rsu_write_1(sc, R92S_SPS1_CTRL, 3093 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 3094 3095 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 3096 3097 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3098 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3099 3100 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3101 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3102 3103 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3104 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 3105 3106 /* Enable AFE clock. */ 3107 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3108 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3109 /* Enable AFE PLL macro block. */ 3110 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 3111 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 3112 /* Attach AFE PLL to MACTOP/BB. */ 3113 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3114 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3115 3116 /* Switch to 40MHz clock instead of 80MHz. */ 3117 rsu_write_2(sc, R92S_SYS_CLKR, 3118 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 3119 3120 /* Enable MAC clock. */ 3121 rsu_write_2(sc, R92S_SYS_CLKR, 3122 rsu_read_2(sc, R92S_SYS_CLKR) | 3123 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3124 3125 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3126 3127 /* Enable digital core and IOREG R/W. */ 3128 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3129 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3130 3131 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3132 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3133 3134 /* Switch the control path to firmware. */ 3135 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3136 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3137 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3138 3139 rsu_write_2(sc, R92S_CR, 0x37fc); 3140 3141 /* Fix USB RX FIFO issue. */ 3142 rsu_write_1(sc, 0xfe5c, 3143 rsu_read_1(sc, 0xfe5c) | 0x80); 3144 rsu_write_1(sc, 0x00ab, 3145 rsu_read_1(sc, 0x00ab) | 0xc0); 3146 3147 rsu_write_1(sc, R92S_SYS_CLKR, 3148 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3149 } 3150 3151 /* 3152 * Power on sequence for B-cut and C-cut adapters. 3153 */ 3154 static void 3155 rsu_power_on_bcut(struct rsu_softc *sc) 3156 { 3157 uint32_t reg; 3158 int ntries; 3159 3160 /* Prevent eFuse leakage. */ 3161 rsu_write_1(sc, 0x37, 0xb0); 3162 rsu_ms_delay(sc, 10); 3163 rsu_write_1(sc, 0x37, 0x30); 3164 3165 /* Switch the control path to hardware. */ 3166 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3167 if (reg & R92S_FWHW_SEL) { 3168 rsu_write_2(sc, R92S_SYS_CLKR, 3169 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 3170 } 3171 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3172 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 3173 rsu_ms_delay(sc, 1); 3174 3175 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3176 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3177 3178 reg = rsu_read_1(sc, R92S_AFE_MISC); 3179 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 3180 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 3181 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 3182 3183 /* Enable PLL. */ 3184 rsu_write_1(sc, R92S_LDOA15_CTRL, 3185 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3186 3187 rsu_write_1(sc, R92S_LDOV12D_CTRL, 3188 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 3189 3190 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3191 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3192 3193 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3194 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3195 3196 /* Support 64KB IMEM. */ 3197 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3198 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 3199 3200 /* Enable AFE clock. */ 3201 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3202 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3203 /* Enable AFE PLL macro block. */ 3204 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 3205 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3206 rsu_ms_delay(sc, 1); 3207 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 3208 rsu_ms_delay(sc, 1); 3209 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3210 rsu_ms_delay(sc, 1); 3211 3212 /* Attach AFE PLL to MACTOP/BB. */ 3213 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3214 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3215 3216 /* Switch to 40MHz clock. */ 3217 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 3218 /* Disable CPU clock and 80MHz SSC. */ 3219 rsu_write_1(sc, R92S_SYS_CLKR, 3220 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 3221 /* Enable MAC clock. */ 3222 rsu_write_2(sc, R92S_SYS_CLKR, 3223 rsu_read_2(sc, R92S_SYS_CLKR) | 3224 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3225 3226 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3227 3228 /* Enable digital core and IOREG R/W. */ 3229 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3230 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3231 3232 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3233 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3234 3235 /* Switch the control path to firmware. */ 3236 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3237 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3238 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3239 3240 rsu_write_2(sc, R92S_CR, 0x37fc); 3241 3242 /* Fix USB RX FIFO issue. */ 3243 rsu_write_1(sc, 0xfe5c, 3244 rsu_read_1(sc, 0xfe5c) | 0x80); 3245 3246 rsu_write_1(sc, R92S_SYS_CLKR, 3247 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3248 3249 rsu_write_1(sc, 0xfe1c, 0x80); 3250 3251 /* Make sure TxDMA is ready to download firmware. */ 3252 for (ntries = 0; ntries < 20; ntries++) { 3253 reg = rsu_read_1(sc, R92S_TCR); 3254 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 3255 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 3256 break; 3257 rsu_ms_delay(sc, 1); 3258 } 3259 if (ntries == 20) { 3260 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 3261 "%s: TxDMA is not ready\n", 3262 __func__); 3263 /* Reset TxDMA. */ 3264 reg = rsu_read_1(sc, R92S_CR); 3265 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 3266 rsu_ms_delay(sc, 1); 3267 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 3268 } 3269 } 3270 3271 static void 3272 rsu_power_off(struct rsu_softc *sc) 3273 { 3274 /* Turn RF off. */ 3275 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 3276 rsu_ms_delay(sc, 5); 3277 3278 /* Turn MAC off. */ 3279 /* Switch control path. */ 3280 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 3281 /* Reset MACTOP. */ 3282 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 3283 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 3284 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 3285 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 3286 3287 /* Disable AFE PLL. */ 3288 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 3289 /* Disable A15V. */ 3290 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 3291 /* Disable eFuse 1.2V. */ 3292 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 3293 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 3294 /* Enable AFE macro block's bandgap and Mbias. */ 3295 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 3296 /* Disable 1.6V LDO. */ 3297 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 3298 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 3299 3300 /* Firmware - tell it to switch things off */ 3301 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 3302 } 3303 3304 static int 3305 rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 3306 { 3307 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 3308 struct rsu_data *data; 3309 struct r92s_tx_desc *txd; 3310 int mlen; 3311 3312 while (len > 0) { 3313 data = rsu_getbuf(sc); 3314 if (data == NULL) 3315 return (ENOMEM); 3316 txd = (struct r92s_tx_desc *)data->buf; 3317 memset(txd, 0, sizeof(*txd)); 3318 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 3319 /* Last chunk. */ 3320 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 3321 mlen = len; 3322 } else 3323 mlen = RSU_TXBUFSZ - sizeof(*txd); 3324 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 3325 memcpy(&txd[1], buf, mlen); 3326 data->buflen = sizeof(*txd) + mlen; 3327 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 3328 "%s: starting transfer %p\n", 3329 __func__, data); 3330 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 3331 buf += mlen; 3332 len -= mlen; 3333 } 3334 usbd_transfer_start(sc->sc_xfer[which]); 3335 return (0); 3336 } 3337 3338 CTASSERT(sizeof(size_t) >= sizeof(uint32_t)); 3339 3340 static int 3341 rsu_load_firmware(struct rsu_softc *sc) 3342 { 3343 const struct r92s_fw_hdr *hdr; 3344 struct r92s_fw_priv *dmem; 3345 struct ieee80211com *ic = &sc->sc_ic; 3346 const uint8_t *imem, *emem; 3347 uint32_t imemsz, ememsz; 3348 const struct firmware *fw; 3349 size_t size; 3350 uint32_t reg; 3351 int ntries, error; 3352 3353 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 3354 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 3355 "%s: Firmware already loaded\n", 3356 __func__); 3357 return (0); 3358 } 3359 3360 RSU_UNLOCK(sc); 3361 /* Read firmware image from the filesystem. */ 3362 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 3363 device_printf(sc->sc_dev, 3364 "%s: failed load firmware of file rsu-rtl8712fw\n", 3365 __func__); 3366 RSU_LOCK(sc); 3367 return (ENXIO); 3368 } 3369 RSU_LOCK(sc); 3370 size = fw->datasize; 3371 if (size < sizeof(*hdr)) { 3372 device_printf(sc->sc_dev, "firmware too short\n"); 3373 error = EINVAL; 3374 goto fail; 3375 } 3376 hdr = (const struct r92s_fw_hdr *)fw->data; 3377 if (hdr->signature != htole16(0x8712) && 3378 hdr->signature != htole16(0x8192)) { 3379 device_printf(sc->sc_dev, 3380 "invalid firmware signature 0x%x\n", 3381 le16toh(hdr->signature)); 3382 error = EINVAL; 3383 goto fail; 3384 } 3385 RSU_DPRINTF(sc, RSU_DEBUG_FW, "FW V%d %02x-%02x %02x:%02x\n", 3386 le16toh(hdr->version), hdr->month, hdr->day, hdr->hour, 3387 hdr->minute); 3388 3389 /* Make sure that driver and firmware are in sync. */ 3390 if (hdr->privsz != htole32(sizeof(*dmem))) { 3391 device_printf(sc->sc_dev, "unsupported firmware image\n"); 3392 error = EINVAL; 3393 goto fail; 3394 } 3395 /* Get FW sections sizes. */ 3396 imemsz = le32toh(hdr->imemsz); 3397 ememsz = le32toh(hdr->sramsz); 3398 /* Check that all FW sections fit in image. */ 3399 if (imemsz > (size_t)(size - sizeof(*hdr)) || 3400 ememsz > (size_t)(size - sizeof(*hdr) - imemsz)) { 3401 device_printf(sc->sc_dev, "firmware too short\n"); 3402 error = EINVAL; 3403 goto fail; 3404 } 3405 imem = (const uint8_t *)&hdr[1]; 3406 emem = imem + imemsz; 3407 3408 /* Load IMEM section. */ 3409 error = rsu_fw_loadsection(sc, imem, imemsz); 3410 if (error != 0) { 3411 device_printf(sc->sc_dev, 3412 "could not load firmware section %s\n", "IMEM"); 3413 goto fail; 3414 } 3415 /* Wait for load to complete. */ 3416 for (ntries = 0; ntries != 50; ntries++) { 3417 rsu_ms_delay(sc, 10); 3418 reg = rsu_read_1(sc, R92S_TCR); 3419 if (reg & R92S_TCR_IMEM_CODE_DONE) 3420 break; 3421 } 3422 if (ntries == 50) { 3423 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 3424 error = ETIMEDOUT; 3425 goto fail; 3426 } 3427 /* Load EMEM section. */ 3428 error = rsu_fw_loadsection(sc, emem, ememsz); 3429 if (error != 0) { 3430 device_printf(sc->sc_dev, 3431 "could not load firmware section %s\n", "EMEM"); 3432 goto fail; 3433 } 3434 /* Wait for load to complete. */ 3435 for (ntries = 0; ntries != 50; ntries++) { 3436 rsu_ms_delay(sc, 10); 3437 reg = rsu_read_2(sc, R92S_TCR); 3438 if (reg & R92S_TCR_EMEM_CODE_DONE) 3439 break; 3440 } 3441 if (ntries == 50) { 3442 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 3443 error = ETIMEDOUT; 3444 goto fail; 3445 } 3446 /* Enable CPU. */ 3447 rsu_write_1(sc, R92S_SYS_CLKR, 3448 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 3449 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 3450 device_printf(sc->sc_dev, "could not enable system clock\n"); 3451 error = EIO; 3452 goto fail; 3453 } 3454 rsu_write_2(sc, R92S_SYS_FUNC_EN, 3455 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 3456 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 3457 device_printf(sc->sc_dev, 3458 "could not enable microcontroller\n"); 3459 error = EIO; 3460 goto fail; 3461 } 3462 /* Wait for CPU to initialize. */ 3463 for (ntries = 0; ntries < 100; ntries++) { 3464 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 3465 break; 3466 rsu_ms_delay(sc, 1); 3467 } 3468 if (ntries == 100) { 3469 device_printf(sc->sc_dev, 3470 "timeout waiting for microcontroller\n"); 3471 error = ETIMEDOUT; 3472 goto fail; 3473 } 3474 3475 /* Update DMEM section before loading. */ 3476 dmem = __DECONST(struct r92s_fw_priv *, &hdr->priv); 3477 memset(dmem, 0, sizeof(*dmem)); 3478 dmem->hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 3479 dmem->nendpoints = sc->sc_nendpoints; 3480 dmem->chip_version = sc->cut; 3481 dmem->rf_config = sc->sc_rftype; 3482 dmem->vcs_type = R92S_VCS_TYPE_AUTO; 3483 dmem->vcs_mode = R92S_VCS_MODE_RTS_CTS; 3484 dmem->turbo_mode = 0; 3485 dmem->bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 3486 dmem->amsdu2ampdu_en = !! (sc->sc_ht); 3487 dmem->ampdu_en = !! (sc->sc_ht); 3488 dmem->agg_offload = !! (sc->sc_ht); 3489 dmem->qos_en = 1; 3490 dmem->ps_offload = 1; 3491 dmem->lowpower_mode = 1; /* XXX TODO: configurable? */ 3492 /* Load DMEM section. */ 3493 error = rsu_fw_loadsection(sc, (uint8_t *)dmem, sizeof(*dmem)); 3494 if (error != 0) { 3495 device_printf(sc->sc_dev, 3496 "could not load firmware section %s\n", "DMEM"); 3497 goto fail; 3498 } 3499 /* Wait for load to complete. */ 3500 for (ntries = 0; ntries < 100; ntries++) { 3501 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 3502 break; 3503 rsu_ms_delay(sc, 1); 3504 } 3505 if (ntries == 100) { 3506 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 3507 "DMEM"); 3508 error = ETIMEDOUT; 3509 goto fail; 3510 } 3511 /* Wait for firmware readiness. */ 3512 for (ntries = 0; ntries < 60; ntries++) { 3513 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 3514 break; 3515 rsu_ms_delay(sc, 1); 3516 } 3517 if (ntries == 60) { 3518 device_printf(sc->sc_dev, 3519 "timeout waiting for firmware readiness\n"); 3520 error = ETIMEDOUT; 3521 goto fail; 3522 } 3523 fail: 3524 firmware_put(fw, FIRMWARE_UNLOAD); 3525 return (error); 3526 } 3527 3528 3529 static int 3530 rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3531 const struct ieee80211_bpf_params *params) 3532 { 3533 struct ieee80211com *ic = ni->ni_ic; 3534 struct rsu_softc *sc = ic->ic_softc; 3535 struct rsu_data *bf; 3536 3537 /* prevent management frames from being sent if we're not ready */ 3538 if (!sc->sc_running) { 3539 m_freem(m); 3540 return (ENETDOWN); 3541 } 3542 RSU_LOCK(sc); 3543 bf = rsu_getbuf(sc); 3544 if (bf == NULL) { 3545 m_freem(m); 3546 RSU_UNLOCK(sc); 3547 return (ENOBUFS); 3548 } 3549 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3550 m_freem(m); 3551 rsu_freebuf(sc, bf); 3552 RSU_UNLOCK(sc); 3553 return (EIO); 3554 } 3555 RSU_UNLOCK(sc); 3556 3557 return (0); 3558 } 3559 3560 static void 3561 rsu_rxfilter_init(struct rsu_softc *sc) 3562 { 3563 uint32_t reg; 3564 3565 RSU_ASSERT_LOCKED(sc); 3566 3567 /* Setup multicast filter. */ 3568 rsu_set_multi(sc); 3569 3570 /* Adjust Rx filter. */ 3571 reg = rsu_read_4(sc, R92S_RCR); 3572 reg &= ~R92S_RCR_AICV; 3573 reg |= R92S_RCR_APP_PHYSTS; 3574 if (sc->sc_rx_checksum_enable) 3575 reg |= R92S_RCR_TCP_OFFLD_EN; 3576 rsu_write_4(sc, R92S_RCR, reg); 3577 3578 /* Update dynamic Rx filter parts. */ 3579 rsu_rxfilter_refresh(sc); 3580 } 3581 3582 static void 3583 rsu_rxfilter_set(struct rsu_softc *sc, uint32_t clear, uint32_t set) 3584 { 3585 /* NB: firmware can touch this register too. */ 3586 rsu_write_4(sc, R92S_RCR, 3587 (rsu_read_4(sc, R92S_RCR) & ~clear) | set); 3588 } 3589 3590 static void 3591 rsu_rxfilter_refresh(struct rsu_softc *sc) 3592 { 3593 struct ieee80211com *ic = &sc->sc_ic; 3594 uint32_t mask_all, mask_min; 3595 3596 RSU_ASSERT_LOCKED(sc); 3597 3598 /* NB: RCR_AMF / RXFLTMAP_MGT are used by firmware. */ 3599 mask_all = R92S_RCR_ACF | R92S_RCR_AAP; 3600 mask_min = R92S_RCR_APM; 3601 if (sc->sc_vap_is_running) 3602 mask_min |= R92S_RCR_CBSSID; 3603 else 3604 mask_all |= R92S_RCR_ADF; 3605 3606 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3607 uint16_t rxfltmap; 3608 if (sc->sc_vap_is_running) 3609 rxfltmap = 0; 3610 else 3611 rxfltmap = R92S_RXFLTMAP_MGT_DEF; 3612 rsu_write_2(sc, R92S_RXFLTMAP_MGT, rxfltmap); 3613 } 3614 3615 if (ic->ic_promisc == 0 && ic->ic_opmode != IEEE80211_M_MONITOR) 3616 rsu_rxfilter_set(sc, mask_all, mask_min); 3617 else 3618 rsu_rxfilter_set(sc, mask_min, mask_all); 3619 } 3620 3621 static int 3622 rsu_init(struct rsu_softc *sc) 3623 { 3624 struct ieee80211com *ic = &sc->sc_ic; 3625 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3626 uint8_t macaddr[IEEE80211_ADDR_LEN]; 3627 int error; 3628 int i; 3629 3630 RSU_LOCK(sc); 3631 3632 if (sc->sc_running) { 3633 RSU_UNLOCK(sc); 3634 return (0); 3635 } 3636 3637 /* Ensure the mbuf queue is drained */ 3638 rsu_drain_mbufq(sc); 3639 3640 /* Reset power management state. */ 3641 rsu_write_1(sc, R92S_USB_HRPWM, 0); 3642 3643 /* Power on adapter. */ 3644 if (sc->cut == 1) 3645 rsu_power_on_acut(sc); 3646 else 3647 rsu_power_on_bcut(sc); 3648 3649 /* Load firmware. */ 3650 error = rsu_load_firmware(sc); 3651 if (error != 0) 3652 goto fail; 3653 3654 rsu_write_4(sc, R92S_CR, 3655 rsu_read_4(sc, R92S_CR) & ~0xff000000); 3656 3657 /* Use 128 bytes pages. */ 3658 rsu_write_1(sc, 0x00b5, 3659 rsu_read_1(sc, 0x00b5) | 0x01); 3660 /* Enable USB Rx aggregation. */ 3661 rsu_write_1(sc, 0x00bd, 3662 rsu_read_1(sc, 0x00bd) | 0x80); 3663 /* Set USB Rx aggregation threshold. */ 3664 rsu_write_1(sc, 0x00d9, 0x01); 3665 /* Set USB Rx aggregation timeout (1.7ms/4). */ 3666 rsu_write_1(sc, 0xfe5b, 0x04); 3667 /* Fix USB Rx FIFO issue. */ 3668 rsu_write_1(sc, 0xfe5c, 3669 rsu_read_1(sc, 0xfe5c) | 0x80); 3670 3671 /* Set MAC address. */ 3672 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 3673 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 3674 3675 /* It really takes 1.5 seconds for the firmware to boot: */ 3676 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(2000)); 3677 3678 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 3679 __func__, 3680 ether_sprintf(macaddr)); 3681 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 3682 IEEE80211_ADDR_LEN); 3683 if (error != 0) { 3684 device_printf(sc->sc_dev, "could not set MAC address\n"); 3685 goto fail; 3686 } 3687 3688 /* Initialize Rx filter. */ 3689 rsu_rxfilter_init(sc); 3690 3691 /* Set PS mode fully active */ 3692 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 3693 if (error != 0) { 3694 device_printf(sc->sc_dev, "could not set PS mode\n"); 3695 goto fail; 3696 } 3697 3698 /* Install static keys (if any). */ 3699 error = rsu_reinit_static_keys(sc); 3700 if (error != 0) 3701 goto fail; 3702 3703 sc->sc_extra_scan = 0; 3704 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 3705 3706 /* We're ready to go. */ 3707 sc->sc_running = 1; 3708 RSU_UNLOCK(sc); 3709 3710 return (0); 3711 fail: 3712 /* Need to stop all failed transfers, if any */ 3713 for (i = 0; i != RSU_N_TRANSFER; i++) 3714 usbd_transfer_stop(sc->sc_xfer[i]); 3715 RSU_UNLOCK(sc); 3716 3717 return (error); 3718 } 3719 3720 static void 3721 rsu_stop(struct rsu_softc *sc) 3722 { 3723 int i; 3724 3725 RSU_LOCK(sc); 3726 if (!sc->sc_running) { 3727 RSU_UNLOCK(sc); 3728 return; 3729 } 3730 3731 sc->sc_running = 0; 3732 sc->sc_vap_is_running = 0; 3733 sc->sc_calibrating = 0; 3734 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 3735 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 3736 3737 /* Power off adapter. */ 3738 rsu_power_off(sc); 3739 3740 /* 3741 * CAM is not accessible after shutdown; 3742 * all entries are marked (by firmware?) as invalid. 3743 */ 3744 memset(sc->free_keys_bmap, 0, sizeof(sc->free_keys_bmap)); 3745 memset(sc->keys_bmap, 0, sizeof(sc->keys_bmap)); 3746 3747 for (i = 0; i < RSU_N_TRANSFER; i++) 3748 usbd_transfer_stop(sc->sc_xfer[i]); 3749 3750 /* Ensure the mbuf queue is drained */ 3751 rsu_drain_mbufq(sc); 3752 RSU_UNLOCK(sc); 3753 } 3754 3755 /* 3756 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 3757 * which breaks any kind of driver serialisation. 3758 */ 3759 static void 3760 rsu_ms_delay(struct rsu_softc *sc, int ms) 3761 { 3762 3763 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 3764 DELAY(ms * 1000); 3765 } 3766