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 /* 19 * Driver for Realtek RTL8188SU/RTL8191SU/RTL8192SU. 20 * 21 * TODO: 22 * o tx a-mpdu 23 * o hostap / ibss / mesh 24 * o power-save operation 25 */ 26 27 #include "opt_wlan.h" 28 29 #include <sys/param.h> 30 #include <sys/endian.h> 31 #include <sys/sockio.h> 32 #include <sys/malloc.h> 33 #include <sys/mbuf.h> 34 #include <sys/kernel.h> 35 #include <sys/socket.h> 36 #include <sys/systm.h> 37 #include <sys/conf.h> 38 #include <sys/bus.h> 39 #include <sys/firmware.h> 40 #include <sys/module.h> 41 42 #include <net/bpf.h> 43 #include <net/if.h> 44 #include <net/if_var.h> 45 #include <net/if_arp.h> 46 #include <net/if_dl.h> 47 #include <net/if_media.h> 48 #include <net/if_types.h> 49 50 #include <netinet/in.h> 51 #include <netinet/in_systm.h> 52 #include <netinet/in_var.h> 53 #include <netinet/if_ether.h> 54 #include <netinet/ip.h> 55 56 #include <net80211/ieee80211_var.h> 57 #include <net80211/ieee80211_regdomain.h> 58 #include <net80211/ieee80211_radiotap.h> 59 60 #include <dev/usb/usb.h> 61 #include <dev/usb/usbdi.h> 62 #include "usbdevs.h" 63 64 #include <dev/rtwn/if_rtwn_ridx.h> /* XXX */ 65 #include <dev/usb/wlan/if_rsureg.h> 66 67 #define RSU_RATE_IS_CCK RTWN_RATE_IS_CCK 68 69 #ifdef USB_DEBUG 70 static int rsu_debug = 0; 71 SYSCTL_NODE(_hw_usb, OID_AUTO, rsu, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 72 "USB rsu"); 73 SYSCTL_INT(_hw_usb_rsu, OID_AUTO, debug, CTLFLAG_RWTUN, &rsu_debug, 0, 74 "Debug level"); 75 #define RSU_DPRINTF(_sc, _flg, ...) \ 76 do \ 77 if (((_flg) == (RSU_DEBUG_ANY)) || (rsu_debug & (_flg))) \ 78 device_printf((_sc)->sc_dev, __VA_ARGS__); \ 79 while (0) 80 #else 81 #define RSU_DPRINTF(_sc, _flg, ...) 82 #endif 83 84 static int rsu_enable_11n = 1; 85 TUNABLE_INT("hw.usb.rsu.enable_11n", &rsu_enable_11n); 86 87 #define RSU_DEBUG_ANY 0xffffffff 88 #define RSU_DEBUG_TX 0x00000001 89 #define RSU_DEBUG_RX 0x00000002 90 #define RSU_DEBUG_RESET 0x00000004 91 #define RSU_DEBUG_CALIB 0x00000008 92 #define RSU_DEBUG_STATE 0x00000010 93 #define RSU_DEBUG_SCAN 0x00000020 94 #define RSU_DEBUG_FWCMD 0x00000040 95 #define RSU_DEBUG_TXDONE 0x00000080 96 #define RSU_DEBUG_FW 0x00000100 97 #define RSU_DEBUG_FWDBG 0x00000200 98 #define RSU_DEBUG_AMPDU 0x00000400 99 #define RSU_DEBUG_KEY 0x00000800 100 #define RSU_DEBUG_USB 0x00001000 101 102 static const STRUCT_USB_HOST_ID rsu_devs[] = { 103 #define RSU_HT_NOT_SUPPORTED 0 104 #define RSU_HT_SUPPORTED 1 105 #define RSU_DEV_HT(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 106 RSU_HT_SUPPORTED) } 107 #define RSU_DEV(v,p) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, \ 108 RSU_HT_NOT_SUPPORTED) } 109 RSU_DEV(ASUS, RTL8192SU), 110 RSU_DEV(AZUREWAVE, RTL8192SU_4), 111 RSU_DEV(SITECOMEU, WLA1000), 112 RSU_DEV_HT(ACCTON, RTL8192SU), 113 RSU_DEV_HT(ASUS, USBN10), 114 RSU_DEV_HT(AZUREWAVE, RTL8192SU_1), 115 RSU_DEV_HT(AZUREWAVE, RTL8192SU_2), 116 RSU_DEV_HT(AZUREWAVE, RTL8192SU_3), 117 RSU_DEV_HT(AZUREWAVE, RTL8192SU_5), 118 RSU_DEV_HT(BELKIN, RTL8192SU_1), 119 RSU_DEV_HT(BELKIN, RTL8192SU_2), 120 RSU_DEV_HT(BELKIN, RTL8192SU_3), 121 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_1), 122 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_2), 123 RSU_DEV_HT(CONCEPTRONIC2, RTL8192SU_3), 124 RSU_DEV_HT(COREGA, RTL8192SU), 125 RSU_DEV_HT(DLINK2, DWA131A1), 126 RSU_DEV_HT(DLINK2, RTL8192SU_1), 127 RSU_DEV_HT(DLINK2, RTL8192SU_2), 128 RSU_DEV_HT(EDIMAX, RTL8192SU_1), 129 RSU_DEV_HT(EDIMAX, RTL8192SU_2), 130 RSU_DEV_HT(EDIMAX, EW7622UMN), 131 RSU_DEV_HT(GUILLEMOT, HWGUN54), 132 RSU_DEV_HT(GUILLEMOT, HWNUM300), 133 RSU_DEV_HT(HAWKING, RTL8192SU_1), 134 RSU_DEV_HT(HAWKING, RTL8192SU_2), 135 RSU_DEV_HT(PLANEX2, GWUSNANO), 136 RSU_DEV_HT(REALTEK, RTL8171), 137 RSU_DEV_HT(REALTEK, RTL8172), 138 RSU_DEV_HT(REALTEK, RTL8173), 139 RSU_DEV_HT(REALTEK, RTL8174), 140 RSU_DEV_HT(REALTEK, RTL8192SU), 141 RSU_DEV_HT(REALTEK, RTL8712), 142 RSU_DEV_HT(REALTEK, RTL8713), 143 RSU_DEV_HT(SENAO, RTL8192SU_1), 144 RSU_DEV_HT(SENAO, RTL8192SU_2), 145 RSU_DEV_HT(SITECOMEU, WL349V1), 146 RSU_DEV_HT(SITECOMEU, WL353), 147 RSU_DEV_HT(SITECOMEU, RTL8188S), 148 RSU_DEV_HT(SWEEX2, LW154), 149 RSU_DEV_HT(TRENDNET, TEW646UBH), 150 #undef RSU_DEV_HT 151 #undef RSU_DEV 152 }; 153 154 static device_probe_t rsu_match; 155 static device_attach_t rsu_attach; 156 static device_detach_t rsu_detach; 157 static usb_callback_t rsu_bulk_tx_callback_be_bk; 158 static usb_callback_t rsu_bulk_tx_callback_vi_vo; 159 static usb_callback_t rsu_bulk_tx_callback_h2c; 160 static usb_callback_t rsu_bulk_rx_callback; 161 static usb_error_t rsu_do_request(struct rsu_softc *, 162 struct usb_device_request *, void *); 163 static struct ieee80211vap * 164 rsu_vap_create(struct ieee80211com *, const char name[IFNAMSIZ], 165 int, enum ieee80211_opmode, int, 166 const uint8_t bssid[IEEE80211_ADDR_LEN], 167 const uint8_t mac[IEEE80211_ADDR_LEN]); 168 static void rsu_vap_delete(struct ieee80211vap *); 169 static void rsu_scan_start(struct ieee80211com *); 170 static void rsu_scan_end(struct ieee80211com *); 171 static void rsu_getradiocaps(struct ieee80211com *, int, int *, 172 struct ieee80211_channel[]); 173 static void rsu_set_channel(struct ieee80211com *); 174 static void rsu_scan_curchan(struct ieee80211_scan_state *, unsigned long); 175 static void rsu_scan_mindwell(struct ieee80211_scan_state *); 176 static void rsu_update_promisc(struct ieee80211com *); 177 static uint8_t rsu_get_multi_pos(const uint8_t[]); 178 static void rsu_set_multi(struct rsu_softc *); 179 static void rsu_update_mcast(struct ieee80211com *); 180 static int rsu_alloc_rx_list(struct rsu_softc *); 181 static void rsu_free_rx_list(struct rsu_softc *); 182 static int rsu_alloc_tx_list(struct rsu_softc *); 183 static void rsu_free_tx_list(struct rsu_softc *); 184 static void rsu_free_list(struct rsu_softc *, struct rsu_data [], int); 185 static struct rsu_data *_rsu_getbuf(struct rsu_softc *); 186 static struct rsu_data *rsu_getbuf(struct rsu_softc *); 187 static void rsu_freebuf(struct rsu_softc *, struct rsu_data *); 188 static int rsu_write_region_1(struct rsu_softc *, uint16_t, uint8_t *, 189 int); 190 static void rsu_write_1(struct rsu_softc *, uint16_t, uint8_t); 191 static void rsu_write_2(struct rsu_softc *, uint16_t, uint16_t); 192 static void rsu_write_4(struct rsu_softc *, uint16_t, uint32_t); 193 static int rsu_read_region_1(struct rsu_softc *, uint16_t, uint8_t *, 194 int); 195 static uint8_t rsu_read_1(struct rsu_softc *, uint16_t); 196 static uint16_t rsu_read_2(struct rsu_softc *, uint16_t); 197 static uint32_t rsu_read_4(struct rsu_softc *, uint16_t); 198 static int rsu_fw_iocmd(struct rsu_softc *, uint32_t); 199 static uint8_t rsu_efuse_read_1(struct rsu_softc *, uint16_t); 200 static int rsu_read_rom(struct rsu_softc *); 201 static int rsu_fw_cmd(struct rsu_softc *, uint8_t, void *, int); 202 static void rsu_calib_task(void *, int); 203 static void rsu_tx_task(void *, int); 204 static void rsu_set_led(struct rsu_softc *, int); 205 static int rsu_monitor_newstate(struct ieee80211vap *, 206 enum ieee80211_state, int); 207 static int rsu_newstate(struct ieee80211vap *, enum ieee80211_state, int); 208 static int rsu_key_alloc(struct ieee80211vap *, struct ieee80211_key *, 209 ieee80211_keyix *, ieee80211_keyix *); 210 static int rsu_process_key(struct ieee80211vap *, 211 const struct ieee80211_key *, int); 212 static int rsu_key_set(struct ieee80211vap *, 213 const struct ieee80211_key *); 214 static int rsu_key_delete(struct ieee80211vap *, 215 const struct ieee80211_key *); 216 static int rsu_cam_read(struct rsu_softc *, uint8_t, uint32_t *); 217 static void rsu_cam_write(struct rsu_softc *, uint8_t, uint32_t); 218 static int rsu_key_check(struct rsu_softc *, ieee80211_keyix, int); 219 static uint8_t rsu_crypto_mode(struct rsu_softc *, u_int, int); 220 static int rsu_set_key_group(struct rsu_softc *, 221 const struct ieee80211_key *); 222 static int rsu_set_key_pair(struct rsu_softc *, 223 const struct ieee80211_key *); 224 static int rsu_reinit_static_keys(struct rsu_softc *); 225 static int rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix); 226 static void rsu_delete_key_pair_cb(void *, int); 227 static int rsu_site_survey(struct rsu_softc *, 228 struct ieee80211_scan_ssid *); 229 static int rsu_join_bss(struct rsu_softc *, struct ieee80211_node *); 230 static int rsu_disconnect(struct rsu_softc *); 231 static int rsu_hwrssi_to_rssi(struct rsu_softc *, int hw_rssi); 232 static void rsu_event_survey(struct rsu_softc *, uint8_t *, int); 233 static void rsu_event_join_bss(struct rsu_softc *, uint8_t *, int); 234 static void rsu_rx_event(struct rsu_softc *, uint8_t, uint8_t *, int); 235 static void rsu_rx_multi_event(struct rsu_softc *, uint8_t *, int); 236 static int8_t rsu_get_rssi(struct rsu_softc *, int, void *); 237 static struct mbuf * rsu_rx_copy_to_mbuf(struct rsu_softc *, 238 struct r92s_rx_stat *, int); 239 static uint32_t rsu_get_tsf_low(struct rsu_softc *); 240 static uint32_t rsu_get_tsf_high(struct rsu_softc *); 241 static struct ieee80211_node * rsu_rx_frame(struct rsu_softc *, struct mbuf *); 242 static struct mbuf * rsu_rx_multi_frame(struct rsu_softc *, uint8_t *, int); 243 static struct mbuf * 244 rsu_rxeof(struct usb_xfer *, struct rsu_data *); 245 static void rsu_txeof(struct usb_xfer *, struct rsu_data *); 246 static int rsu_raw_xmit(struct ieee80211_node *, struct mbuf *, 247 const struct ieee80211_bpf_params *); 248 static void rsu_rxfilter_init(struct rsu_softc *); 249 static void rsu_rxfilter_set(struct rsu_softc *, uint32_t, uint32_t); 250 static void rsu_rxfilter_refresh(struct rsu_softc *); 251 static int rsu_init(struct rsu_softc *); 252 static int rsu_tx_start(struct rsu_softc *, struct ieee80211_node *, 253 struct mbuf *, struct rsu_data *); 254 static int rsu_transmit(struct ieee80211com *, struct mbuf *); 255 static void rsu_start(struct rsu_softc *); 256 static void _rsu_start(struct rsu_softc *); 257 static int rsu_ioctl_net(struct ieee80211com *, u_long, void *); 258 static void rsu_parent(struct ieee80211com *); 259 static void rsu_stop(struct rsu_softc *); 260 static void rsu_ms_delay(struct rsu_softc *, int); 261 262 static device_method_t rsu_methods[] = { 263 DEVMETHOD(device_probe, rsu_match), 264 DEVMETHOD(device_attach, rsu_attach), 265 DEVMETHOD(device_detach, rsu_detach), 266 267 DEVMETHOD_END 268 }; 269 270 static driver_t rsu_driver = { 271 .name = "rsu", 272 .methods = rsu_methods, 273 .size = sizeof(struct rsu_softc) 274 }; 275 276 DRIVER_MODULE(rsu, uhub, rsu_driver, NULL, NULL); 277 MODULE_DEPEND(rsu, wlan, 1, 1, 1); 278 MODULE_DEPEND(rsu, usb, 1, 1, 1); 279 MODULE_DEPEND(rsu, firmware, 1, 1, 1); 280 MODULE_VERSION(rsu, 1); 281 USB_PNP_HOST_INFO(rsu_devs); 282 283 static uint8_t rsu_wme_ac_xfer_map[4] = { 284 [WME_AC_BE] = RSU_BULK_TX_BE_BK, 285 [WME_AC_BK] = RSU_BULK_TX_BE_BK, 286 [WME_AC_VI] = RSU_BULK_TX_VI_VO, 287 [WME_AC_VO] = RSU_BULK_TX_VI_VO, 288 }; 289 290 /* XXX hard-coded */ 291 #define RSU_H2C_ENDPOINT 3 292 293 static const struct usb_config rsu_config[RSU_N_TRANSFER] = { 294 [RSU_BULK_RX] = { 295 .type = UE_BULK, 296 .endpoint = UE_ADDR_ANY, 297 .direction = UE_DIR_IN, 298 .bufsize = RSU_RXBUFSZ, 299 .flags = { 300 .pipe_bof = 1, 301 .short_xfer_ok = 1 302 }, 303 .callback = rsu_bulk_rx_callback 304 }, 305 [RSU_BULK_TX_BE_BK] = { 306 .type = UE_BULK, 307 .endpoint = 0x06, 308 .direction = UE_DIR_OUT, 309 .bufsize = RSU_TXBUFSZ, 310 .flags = { 311 .ext_buffer = 1, 312 .pipe_bof = 1, 313 .force_short_xfer = 1 314 }, 315 .callback = rsu_bulk_tx_callback_be_bk, 316 .timeout = RSU_TX_TIMEOUT 317 }, 318 [RSU_BULK_TX_VI_VO] = { 319 .type = UE_BULK, 320 .endpoint = 0x04, 321 .direction = UE_DIR_OUT, 322 .bufsize = RSU_TXBUFSZ, 323 .flags = { 324 .ext_buffer = 1, 325 .pipe_bof = 1, 326 .force_short_xfer = 1 327 }, 328 .callback = rsu_bulk_tx_callback_vi_vo, 329 .timeout = RSU_TX_TIMEOUT 330 }, 331 [RSU_BULK_TX_H2C] = { 332 .type = UE_BULK, 333 .endpoint = 0x0d, 334 .direction = UE_DIR_OUT, 335 .bufsize = RSU_TXBUFSZ, 336 .flags = { 337 .ext_buffer = 1, 338 .pipe_bof = 1, 339 .short_xfer_ok = 1 340 }, 341 .callback = rsu_bulk_tx_callback_h2c, 342 .timeout = RSU_TX_TIMEOUT 343 }, 344 }; 345 346 static int 347 rsu_match(device_t self) 348 { 349 struct usb_attach_arg *uaa = device_get_ivars(self); 350 351 if (uaa->usb_mode != USB_MODE_HOST || 352 uaa->info.bIfaceIndex != 0 || 353 uaa->info.bConfigIndex != 0) 354 return (ENXIO); 355 356 return (usbd_lookup_id_by_uaa(rsu_devs, sizeof(rsu_devs), uaa)); 357 } 358 359 static int 360 rsu_send_mgmt(struct ieee80211_node *ni, int type, int arg) 361 { 362 363 return (ENOTSUP); 364 } 365 366 static void 367 rsu_update_chw(struct ieee80211com *ic) 368 { 369 370 } 371 372 /* 373 * notification from net80211 that it'd like to do A-MPDU on the given TID. 374 */ 375 static int 376 rsu_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 377 { 378 struct rsu_softc *sc = ni->ni_ic->ic_softc; 379 struct r92s_add_ba_req req; 380 381 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: called, tid=%d\n", 382 __func__, tap->txa_tid); 383 384 /* Don't enable if it's requested or running */ 385 if (IEEE80211_AMPDU_REQUESTED(tap)) 386 return (0); 387 if (IEEE80211_AMPDU_RUNNING(tap)) 388 return (0); 389 390 /* We've decided to send addba; so send it */ 391 req.tid = htole32(tap->txa_tid); 392 393 /* Attempt net80211 state */ 394 if (ieee80211_ampdu_tx_request_ext(ni, tap->txa_tid) != 1) 395 return (0); 396 397 /* Send the firmware command */ 398 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, 399 "%s: establishing AMPDU TX for TID %d\n", 400 __func__, 401 tap->txa_tid); 402 403 RSU_LOCK(sc); 404 if (rsu_fw_cmd(sc, R92S_CMD_ADDBA_REQ, &req, sizeof(req)) != 0) { 405 RSU_UNLOCK(sc); 406 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: AMPDU TX cmd failure\n", 407 __func__); 408 /* Mark failure */ 409 ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 0); 410 /* Return 0, we've been driving this ourselves */ 411 return (0); 412 } 413 RSU_UNLOCK(sc); 414 415 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: AMPDU TX cmd success\n", 416 __func__); 417 418 /* Mark success; we don't get any further notifications */ 419 ieee80211_ampdu_tx_request_active_ext(ni, tap->txa_tid, 1); 420 421 /* Return 0, we've been driving this ourselves */ 422 return (0); 423 } 424 425 static int 426 rsu_wme_update(struct ieee80211com *ic) 427 { 428 429 /* Firmware handles this; not our problem */ 430 return (0); 431 } 432 433 static int 434 rsu_attach(device_t self) 435 { 436 struct usb_attach_arg *uaa = device_get_ivars(self); 437 struct rsu_softc *sc = device_get_softc(self); 438 struct ieee80211com *ic = &sc->sc_ic; 439 int error; 440 uint8_t iface_index; 441 struct usb_interface *iface; 442 const char *rft; 443 444 device_set_usb_desc(self); 445 sc->sc_udev = uaa->device; 446 sc->sc_dev = self; 447 sc->sc_rx_checksum_enable = 1; 448 if (rsu_enable_11n) 449 sc->sc_ht = !! (USB_GET_DRIVER_INFO(uaa) & RSU_HT_SUPPORTED); 450 451 /* Get number of endpoints */ 452 iface = usbd_get_iface(sc->sc_udev, 0); 453 sc->sc_nendpoints = iface->idesc->bNumEndpoints; 454 455 /* Endpoints are hard-coded for now, so enforce 4-endpoint only */ 456 if (sc->sc_nendpoints != 4) { 457 device_printf(sc->sc_dev, 458 "the driver currently only supports 4-endpoint devices\n"); 459 return (ENXIO); 460 } 461 462 mtx_init(&sc->sc_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, 463 MTX_DEF); 464 RSU_DELKEY_BMAP_LOCK_INIT(sc); 465 TIMEOUT_TASK_INIT(taskqueue_thread, &sc->calib_task, 0, 466 rsu_calib_task, sc); 467 TASK_INIT(&sc->del_key_task, 0, rsu_delete_key_pair_cb, sc); 468 TASK_INIT(&sc->tx_task, 0, rsu_tx_task, sc); 469 mbufq_init(&sc->sc_snd, ifqmaxlen); 470 471 /* Allocate Tx/Rx buffers. */ 472 error = rsu_alloc_rx_list(sc); 473 if (error != 0) { 474 device_printf(sc->sc_dev, "could not allocate Rx buffers\n"); 475 goto fail_usb; 476 } 477 478 error = rsu_alloc_tx_list(sc); 479 if (error != 0) { 480 device_printf(sc->sc_dev, "could not allocate Tx buffers\n"); 481 rsu_free_rx_list(sc); 482 goto fail_usb; 483 } 484 485 iface_index = 0; 486 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 487 rsu_config, RSU_N_TRANSFER, sc, &sc->sc_mtx); 488 if (error) { 489 device_printf(sc->sc_dev, 490 "could not allocate USB transfers, err=%s\n", 491 usbd_errstr(error)); 492 goto fail_usb; 493 } 494 RSU_LOCK(sc); 495 /* Read chip revision. */ 496 sc->cut = MS(rsu_read_4(sc, R92S_PMC_FSM), R92S_PMC_FSM_CUT); 497 if (sc->cut != 3) 498 sc->cut = (sc->cut >> 1) + 1; 499 error = rsu_read_rom(sc); 500 RSU_UNLOCK(sc); 501 if (error != 0) { 502 device_printf(self, "could not read ROM\n"); 503 goto fail_rom; 504 } 505 506 /* Figure out TX/RX streams */ 507 switch (sc->rom[84]) { 508 case 0x0: 509 sc->sc_rftype = RTL8712_RFCONFIG_1T1R; 510 sc->sc_nrxstream = 1; 511 sc->sc_ntxstream = 1; 512 rft = "1T1R"; 513 break; 514 case 0x1: 515 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 516 sc->sc_nrxstream = 2; 517 sc->sc_ntxstream = 1; 518 rft = "1T2R"; 519 break; 520 case 0x2: 521 sc->sc_rftype = RTL8712_RFCONFIG_2T2R; 522 sc->sc_nrxstream = 2; 523 sc->sc_ntxstream = 2; 524 rft = "2T2R"; 525 break; 526 case 0x3: /* "green" NIC */ 527 sc->sc_rftype = RTL8712_RFCONFIG_1T2R; 528 sc->sc_nrxstream = 2; 529 sc->sc_ntxstream = 1; 530 rft = "1T2R ('green')"; 531 break; 532 default: 533 device_printf(sc->sc_dev, 534 "%s: unknown board type (rfconfig=0x%02x)\n", 535 __func__, 536 sc->rom[84]); 537 goto fail_rom; 538 } 539 540 IEEE80211_ADDR_COPY(ic->ic_macaddr, &sc->rom[0x12]); 541 device_printf(self, "MAC/BB RTL8712 cut %d %s\n", sc->cut, rft); 542 543 ic->ic_softc = sc; 544 ic->ic_name = device_get_nameunit(self); 545 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 546 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 547 548 /* Set device capabilities. */ 549 ic->ic_caps = 550 IEEE80211_C_STA | /* station mode */ 551 IEEE80211_C_MONITOR | /* monitor mode supported */ 552 #if 0 553 IEEE80211_C_BGSCAN | /* Background scan. */ 554 #endif 555 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 556 IEEE80211_C_WME | /* WME/QoS */ 557 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 558 IEEE80211_C_WPA; /* WPA/RSN. */ 559 560 ic->ic_cryptocaps = 561 IEEE80211_CRYPTO_WEP | 562 IEEE80211_CRYPTO_TKIP | 563 IEEE80211_CRYPTO_AES_CCM; 564 565 /* Check if HT support is present. */ 566 if (sc->sc_ht) { 567 device_printf(sc->sc_dev, "%s: enabling 11n\n", __func__); 568 569 /* Enable basic HT */ 570 ic->ic_htcaps = IEEE80211_HTC_HT | 571 IEEE80211_HTC_AMPDU | 572 IEEE80211_HTC_AMSDU | 573 IEEE80211_HTCAP_MAXAMSDU_3839 | 574 IEEE80211_HTCAP_SMPS_OFF; 575 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40; 576 577 /* set number of spatial streams */ 578 ic->ic_txstream = sc->sc_ntxstream; 579 ic->ic_rxstream = sc->sc_nrxstream; 580 } 581 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 582 ic->ic_flags_ext |= IEEE80211_FEXT_SEQNO_OFFLOAD; 583 584 rsu_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 585 ic->ic_channels); 586 587 ieee80211_ifattach(ic); 588 ic->ic_raw_xmit = rsu_raw_xmit; 589 ic->ic_scan_start = rsu_scan_start; 590 ic->ic_scan_end = rsu_scan_end; 591 ic->ic_getradiocaps = rsu_getradiocaps; 592 ic->ic_set_channel = rsu_set_channel; 593 ic->ic_scan_curchan = rsu_scan_curchan; 594 ic->ic_scan_mindwell = rsu_scan_mindwell; 595 ic->ic_vap_create = rsu_vap_create; 596 ic->ic_vap_delete = rsu_vap_delete; 597 ic->ic_update_promisc = rsu_update_promisc; 598 ic->ic_update_mcast = rsu_update_mcast; 599 ic->ic_ioctl = rsu_ioctl_net; 600 ic->ic_parent = rsu_parent; 601 ic->ic_transmit = rsu_transmit; 602 ic->ic_send_mgmt = rsu_send_mgmt; 603 ic->ic_update_chw = rsu_update_chw; 604 ic->ic_ampdu_enable = rsu_ampdu_enable; 605 ic->ic_wme.wme_update = rsu_wme_update; 606 607 ieee80211_radiotap_attach(ic, &sc->sc_txtap.wt_ihdr, 608 sizeof(sc->sc_txtap), RSU_TX_RADIOTAP_PRESENT, 609 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 610 RSU_RX_RADIOTAP_PRESENT); 611 612 if (bootverbose) 613 ieee80211_announce(ic); 614 615 return (0); 616 617 fail_rom: 618 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 619 fail_usb: 620 mtx_destroy(&sc->sc_mtx); 621 return (ENXIO); 622 } 623 624 static int 625 rsu_detach(device_t self) 626 { 627 struct rsu_softc *sc = device_get_softc(self); 628 struct ieee80211com *ic = &sc->sc_ic; 629 630 rsu_stop(sc); 631 632 usbd_transfer_unsetup(sc->sc_xfer, RSU_N_TRANSFER); 633 634 /* 635 * Free buffers /before/ we detach from net80211, else node 636 * references to destroyed vaps will lead to a panic. 637 */ 638 /* Free Tx/Rx buffers. */ 639 RSU_LOCK(sc); 640 rsu_free_tx_list(sc); 641 rsu_free_rx_list(sc); 642 RSU_UNLOCK(sc); 643 644 /* Frames are freed; detach from net80211 */ 645 ieee80211_ifdetach(ic); 646 647 taskqueue_drain_timeout(taskqueue_thread, &sc->calib_task); 648 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 649 taskqueue_drain(taskqueue_thread, &sc->tx_task); 650 651 RSU_DELKEY_BMAP_LOCK_DESTROY(sc); 652 mtx_destroy(&sc->sc_mtx); 653 654 return (0); 655 } 656 657 static usb_error_t 658 rsu_do_request(struct rsu_softc *sc, struct usb_device_request *req, 659 void *data) 660 { 661 usb_error_t err; 662 int ntries = 10; 663 664 RSU_ASSERT_LOCKED(sc); 665 666 while (ntries--) { 667 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 668 req, data, 0, NULL, 250 /* ms */); 669 if (err == 0 || err == USB_ERR_NOT_CONFIGURED) 670 break; 671 RSU_DPRINTF(sc, RSU_DEBUG_USB, 672 "Control request failed, %s (retries left: %d)\n", 673 usbd_errstr(err), ntries); 674 rsu_ms_delay(sc, 10); 675 } 676 677 return (err); 678 } 679 680 static struct ieee80211vap * 681 rsu_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 682 enum ieee80211_opmode opmode, int flags, 683 const uint8_t bssid[IEEE80211_ADDR_LEN], 684 const uint8_t mac[IEEE80211_ADDR_LEN]) 685 { 686 struct rsu_softc *sc = ic->ic_softc; 687 struct rsu_vap *uvp; 688 struct ieee80211vap *vap; 689 if_t ifp; 690 691 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 692 return (NULL); 693 694 uvp = malloc(sizeof(struct rsu_vap), M_80211_VAP, M_WAITOK | M_ZERO); 695 vap = &uvp->vap; 696 697 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 698 flags, bssid) != 0) { 699 /* out of memory */ 700 free(uvp, M_80211_VAP); 701 return (NULL); 702 } 703 704 ifp = vap->iv_ifp; 705 if_setcapabilities(ifp, IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 706 RSU_LOCK(sc); 707 if (sc->sc_rx_checksum_enable) 708 if_setcapenablebit(ifp, IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6, 0); 709 RSU_UNLOCK(sc); 710 711 /* override state transition machine */ 712 uvp->newstate = vap->iv_newstate; 713 if (opmode == IEEE80211_M_MONITOR) 714 vap->iv_newstate = rsu_monitor_newstate; 715 else 716 vap->iv_newstate = rsu_newstate; 717 vap->iv_key_alloc = rsu_key_alloc; 718 vap->iv_key_set = rsu_key_set; 719 vap->iv_key_delete = rsu_key_delete; 720 721 /* Limits from the r92su driver */ 722 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; 723 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_32K; 724 725 /* complete setup */ 726 ieee80211_vap_attach(vap, ieee80211_media_change, 727 ieee80211_media_status, mac); 728 ic->ic_opmode = opmode; 729 730 return (vap); 731 } 732 733 static void 734 rsu_vap_delete(struct ieee80211vap *vap) 735 { 736 struct rsu_vap *uvp = RSU_VAP(vap); 737 738 ieee80211_vap_detach(vap); 739 free(uvp, M_80211_VAP); 740 } 741 742 static void 743 rsu_scan_start(struct ieee80211com *ic) 744 { 745 struct rsu_softc *sc = ic->ic_softc; 746 struct ieee80211_scan_state *ss = ic->ic_scan; 747 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 748 int error; 749 750 /* Scanning is done by the firmware. */ 751 RSU_LOCK(sc); 752 sc->sc_active_scan = !!(ss->ss_flags & IEEE80211_SCAN_ACTIVE); 753 /* XXX TODO: force awake if in network-sleep? */ 754 error = rsu_site_survey(sc, ss->ss_nssid > 0 ? &ss->ss_ssid[0] : NULL); 755 RSU_UNLOCK(sc); 756 if (error != 0) { 757 device_printf(sc->sc_dev, 758 "could not send site survey command\n"); 759 ieee80211_cancel_scan(vap); 760 } 761 } 762 763 static void 764 rsu_scan_end(struct ieee80211com *ic) 765 { 766 /* Nothing to do here. */ 767 } 768 769 static void 770 rsu_getradiocaps(struct ieee80211com *ic, 771 int maxchans, int *nchans, struct ieee80211_channel chans[]) 772 { 773 struct rsu_softc *sc = ic->ic_softc; 774 uint8_t bands[IEEE80211_MODE_BYTES]; 775 776 /* Set supported .11b and .11g rates. */ 777 memset(bands, 0, sizeof(bands)); 778 setbit(bands, IEEE80211_MODE_11B); 779 setbit(bands, IEEE80211_MODE_11G); 780 if (sc->sc_ht) 781 setbit(bands, IEEE80211_MODE_11NG); 782 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, 783 bands, (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) ? 784 NET80211_CBW_FLAG_HT40 : 0); 785 } 786 787 static void 788 rsu_set_channel(struct ieee80211com *ic) 789 { 790 struct rsu_softc *sc = ic->ic_softc; 791 792 /* 793 * Only need to set the channel in Monitor mode. AP scanning and auth 794 * are already taken care of by their respective firmware commands. 795 */ 796 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 797 struct r92s_set_channel cmd; 798 int error; 799 800 cmd.channel = IEEE80211_CHAN2IEEE(ic->ic_curchan); 801 802 RSU_LOCK(sc); 803 error = rsu_fw_cmd(sc, R92S_CMD_SET_CHANNEL, &cmd, 804 sizeof(cmd)); 805 if (error != 0) { 806 device_printf(sc->sc_dev, 807 "%s: error %d setting channel\n", __func__, 808 error); 809 } 810 RSU_UNLOCK(sc); 811 } 812 } 813 814 static void 815 rsu_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 816 { 817 /* Scan is done in rsu_scan_start(). */ 818 } 819 820 /** 821 * Called by the net80211 framework to indicate 822 * the minimum dwell time has been met, terminate the scan. 823 * We don't actually terminate the scan as the firmware will notify 824 * us when it's finished and we have no way to interrupt it. 825 */ 826 static void 827 rsu_scan_mindwell(struct ieee80211_scan_state *ss) 828 { 829 /* NB: don't try to abort scan; wait for firmware to finish */ 830 } 831 832 static void 833 rsu_update_promisc(struct ieee80211com *ic) 834 { 835 struct rsu_softc *sc = ic->ic_softc; 836 837 RSU_LOCK(sc); 838 if (sc->sc_running) 839 rsu_rxfilter_refresh(sc); 840 RSU_UNLOCK(sc); 841 } 842 843 /* 844 * The same as rtwn_get_multi_pos() / rtwn_set_multi(). 845 */ 846 static uint8_t 847 rsu_get_multi_pos(const uint8_t maddr[]) 848 { 849 uint64_t mask = 0x00004d101df481b4; 850 uint8_t pos = 0x27; /* initial value */ 851 int i, j; 852 853 for (i = 0; i < IEEE80211_ADDR_LEN; i++) 854 for (j = (i == 0) ? 1 : 0; j < 8; j++) 855 if ((maddr[i] >> j) & 1) 856 pos ^= (mask >> (i * 8 + j - 1)); 857 858 pos &= 0x3f; 859 860 return (pos); 861 } 862 863 static u_int 864 rsu_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 865 { 866 uint32_t *mfilt = arg; 867 uint8_t pos; 868 869 pos = rsu_get_multi_pos(LLADDR(sdl)); 870 mfilt[pos / 32] |= (1 << (pos % 32)); 871 872 return (1); 873 } 874 875 static void 876 rsu_set_multi(struct rsu_softc *sc) 877 { 878 struct ieee80211com *ic = &sc->sc_ic; 879 uint32_t mfilt[2]; 880 881 RSU_ASSERT_LOCKED(sc); 882 883 /* general structure was copied from ath(4). */ 884 if (ic->ic_allmulti == 0) { 885 struct ieee80211vap *vap; 886 887 /* 888 * Merge multicast addresses to form the hardware filter. 889 */ 890 mfilt[0] = mfilt[1] = 0; 891 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 892 if_foreach_llmaddr(vap->iv_ifp, rsu_hash_maddr, &mfilt); 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 ieee80211_node_set_txrate_dot11rate(ni, 1508 rs->rs_rates[rs->rs_nrates - 1]); 1509 (void) rsu_set_fw_power_state(sc, RSU_PWR_SLEEP); 1510 ieee80211_free_node(ni); 1511 startcal = 1; 1512 break; 1513 default: 1514 break; 1515 } 1516 if (startcal != 0) { 1517 sc->sc_calibrating = 1; 1518 /* Start periodic calibration. */ 1519 taskqueue_enqueue_timeout(taskqueue_thread, &sc->calib_task, 1520 hz); 1521 } 1522 RSU_UNLOCK(sc); 1523 IEEE80211_LOCK(ic); 1524 return (uvp->newstate(vap, nstate, arg)); 1525 } 1526 1527 static int 1528 rsu_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 1529 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 1530 { 1531 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1532 int is_checked = 0; 1533 1534 if (ieee80211_is_key_global(vap, k)) { 1535 *keyix = ieee80211_crypto_get_key_wepidx(vap, k); 1536 } else { 1537 /* Note: assumes this is a pairwise key */ 1538 if (vap->iv_opmode != IEEE80211_M_STA) { 1539 *keyix = 0; 1540 /* TODO: obtain keyix from node id */ 1541 is_checked = 1; 1542 k->wk_flags |= IEEE80211_KEY_SWCRYPT; 1543 } else 1544 /* 1545 * TODO: should allocate these from the CAM space; 1546 * skipping over the fixed slots and _BC / _BSS. 1547 */ 1548 *keyix = R92S_MACID_BSS; 1549 } 1550 1551 if (!is_checked) { 1552 RSU_LOCK(sc); 1553 if (isset(sc->keys_bmap, *keyix)) { 1554 device_printf(sc->sc_dev, 1555 "%s: key slot %d is already used!\n", 1556 __func__, *keyix); 1557 RSU_UNLOCK(sc); 1558 return (0); 1559 } 1560 setbit(sc->keys_bmap, *keyix); 1561 RSU_UNLOCK(sc); 1562 } 1563 1564 *rxkeyix = *keyix; 1565 1566 return (1); 1567 } 1568 1569 static int 1570 rsu_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k, 1571 int set) 1572 { 1573 struct rsu_softc *sc = vap->iv_ic->ic_softc; 1574 int ret; 1575 1576 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 1577 /* Not for us. */ 1578 return (1); 1579 } 1580 1581 /* Handle group keys. */ 1582 if (ieee80211_is_key_global(vap, k)) { 1583 KASSERT(k->wk_keyix < nitems(sc->group_keys), 1584 ("keyix %u > %zu\n", k->wk_keyix, nitems(sc->group_keys))); 1585 1586 RSU_LOCK(sc); 1587 sc->group_keys[k->wk_keyix] = (set ? k : NULL); 1588 if (!sc->sc_running) { 1589 /* Static keys will be set during device startup. */ 1590 RSU_UNLOCK(sc); 1591 return (1); 1592 } 1593 1594 if (set) 1595 ret = rsu_set_key_group(sc, k); 1596 else 1597 ret = rsu_delete_key(sc, k->wk_keyix); 1598 RSU_UNLOCK(sc); 1599 1600 return (!ret); 1601 } 1602 1603 if (set) { 1604 /* wait for pending key removal */ 1605 taskqueue_drain(taskqueue_thread, &sc->del_key_task); 1606 1607 RSU_LOCK(sc); 1608 ret = rsu_set_key_pair(sc, k); 1609 RSU_UNLOCK(sc); 1610 } else { 1611 RSU_DELKEY_BMAP_LOCK(sc); 1612 setbit(sc->free_keys_bmap, k->wk_keyix); 1613 RSU_DELKEY_BMAP_UNLOCK(sc); 1614 1615 /* workaround ieee80211_node_delucastkey() locking */ 1616 taskqueue_enqueue(taskqueue_thread, &sc->del_key_task); 1617 ret = 0; /* fake success */ 1618 } 1619 1620 return (!ret); 1621 } 1622 1623 static int 1624 rsu_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1625 { 1626 return (rsu_process_key(vap, k, 1)); 1627 } 1628 1629 static int 1630 rsu_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1631 { 1632 return (rsu_process_key(vap, k, 0)); 1633 } 1634 1635 static int 1636 rsu_cam_read(struct rsu_softc *sc, uint8_t addr, uint32_t *val) 1637 { 1638 int ntries; 1639 1640 rsu_write_4(sc, R92S_CAMCMD, 1641 R92S_CAMCMD_POLLING | SM(R92S_CAMCMD_ADDR, addr)); 1642 for (ntries = 0; ntries < 10; ntries++) { 1643 if (!(rsu_read_4(sc, R92S_CAMCMD) & R92S_CAMCMD_POLLING)) 1644 break; 1645 1646 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1647 } 1648 if (ntries == 10) { 1649 device_printf(sc->sc_dev, 1650 "%s: cannot read CAM entry at address %02X\n", 1651 __func__, addr); 1652 return (ETIMEDOUT); 1653 } 1654 1655 *val = rsu_read_4(sc, R92S_CAMREAD); 1656 1657 return (0); 1658 } 1659 1660 static void 1661 rsu_cam_write(struct rsu_softc *sc, uint8_t addr, uint32_t data) 1662 { 1663 1664 rsu_write_4(sc, R92S_CAMWRITE, data); 1665 rsu_write_4(sc, R92S_CAMCMD, 1666 R92S_CAMCMD_POLLING | R92S_CAMCMD_WRITE | 1667 SM(R92S_CAMCMD_ADDR, addr)); 1668 } 1669 1670 static int 1671 rsu_key_check(struct rsu_softc *sc, ieee80211_keyix keyix, int is_valid) 1672 { 1673 uint32_t val; 1674 int error, ntries; 1675 1676 for (ntries = 0; ntries < 20; ntries++) { 1677 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(1)); 1678 1679 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1680 if (error != 0) { 1681 device_printf(sc->sc_dev, 1682 "%s: cannot check key status!\n", __func__); 1683 return (error); 1684 } 1685 if (((val & R92S_CAM_VALID) == 0) ^ is_valid) 1686 break; 1687 } 1688 if (ntries == 20) { 1689 device_printf(sc->sc_dev, 1690 "%s: key %d is %s marked as valid, rejecting request\n", 1691 __func__, keyix, is_valid ? "not" : "still"); 1692 return (EIO); 1693 } 1694 1695 return (0); 1696 } 1697 1698 /* 1699 * Map net80211 cipher to RTL8712 security mode. 1700 */ 1701 static uint8_t 1702 rsu_crypto_mode(struct rsu_softc *sc, u_int cipher, int keylen) 1703 { 1704 switch (cipher) { 1705 case IEEE80211_CIPHER_WEP: 1706 return keylen < 8 ? R92S_KEY_ALGO_WEP40 : R92S_KEY_ALGO_WEP104; 1707 case IEEE80211_CIPHER_TKIP: 1708 return R92S_KEY_ALGO_TKIP; 1709 case IEEE80211_CIPHER_AES_CCM: 1710 return R92S_KEY_ALGO_AES; 1711 default: 1712 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1713 return R92S_KEY_ALGO_INVALID; 1714 } 1715 } 1716 1717 static int 1718 rsu_set_key_group(struct rsu_softc *sc, const struct ieee80211_key *k) 1719 { 1720 struct r92s_fw_cmd_set_key key; 1721 uint8_t algo; 1722 int error; 1723 1724 RSU_ASSERT_LOCKED(sc); 1725 1726 /* Map net80211 cipher to HW crypto algorithm. */ 1727 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1728 if (algo == R92S_KEY_ALGO_INVALID) 1729 return (EINVAL); 1730 1731 memset(&key, 0, sizeof(key)); 1732 key.algo = algo; 1733 key.cam_id = k->wk_keyix; 1734 key.grpkey = (k->wk_flags & IEEE80211_KEY_GROUP) != 0; 1735 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1736 1737 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1738 "%s: keyix %u, group %u, algo %u/%u, flags %04X, len %u, " 1739 "macaddr %s\n", __func__, key.cam_id, key.grpkey, 1740 k->wk_cipher->ic_cipher, key.algo, k->wk_flags, k->wk_keylen, 1741 ether_sprintf(k->wk_macaddr)); 1742 1743 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1744 if (error != 0) { 1745 device_printf(sc->sc_dev, 1746 "%s: cannot send firmware command, error %d\n", 1747 __func__, error); 1748 return (error); 1749 } 1750 1751 return (rsu_key_check(sc, k->wk_keyix, 1)); 1752 } 1753 1754 static int 1755 rsu_set_key_pair(struct rsu_softc *sc, const struct ieee80211_key *k) 1756 { 1757 struct r92s_fw_cmd_set_key_mac key; 1758 uint8_t algo; 1759 int error; 1760 1761 RSU_ASSERT_LOCKED(sc); 1762 1763 if (!sc->sc_running) 1764 return (ESHUTDOWN); 1765 1766 /* Map net80211 cipher to HW crypto algorithm. */ 1767 algo = rsu_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 1768 if (algo == R92S_KEY_ALGO_INVALID) 1769 return (EINVAL); 1770 1771 memset(&key, 0, sizeof(key)); 1772 key.algo = algo; 1773 memcpy(key.macaddr, k->wk_macaddr, sizeof(key.macaddr)); 1774 memcpy(key.key, k->wk_key, MIN(k->wk_keylen, sizeof(key.key))); 1775 1776 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1777 "%s: keyix %u, algo %u/%u, flags %04X, len %u, macaddr %s\n", 1778 __func__, k->wk_keyix, k->wk_cipher->ic_cipher, key.algo, 1779 k->wk_flags, k->wk_keylen, ether_sprintf(key.macaddr)); 1780 1781 error = rsu_fw_cmd(sc, R92S_CMD_SET_STA_KEY, &key, sizeof(key)); 1782 if (error != 0) { 1783 device_printf(sc->sc_dev, 1784 "%s: cannot send firmware command, error %d\n", 1785 __func__, error); 1786 return (error); 1787 } 1788 1789 return (rsu_key_check(sc, k->wk_keyix, 1)); 1790 } 1791 1792 static int 1793 rsu_reinit_static_keys(struct rsu_softc *sc) 1794 { 1795 int i, error; 1796 1797 for (i = 0; i < nitems(sc->group_keys); i++) { 1798 if (sc->group_keys[i] != NULL) { 1799 error = rsu_set_key_group(sc, sc->group_keys[i]); 1800 if (error != 0) { 1801 device_printf(sc->sc_dev, 1802 "%s: failed to set static key %d, " 1803 "error %d\n", __func__, i, error); 1804 return (error); 1805 } 1806 } 1807 } 1808 1809 return (0); 1810 } 1811 1812 static int 1813 rsu_delete_key(struct rsu_softc *sc, ieee80211_keyix keyix) 1814 { 1815 struct r92s_fw_cmd_set_key key; 1816 uint32_t val; 1817 int error; 1818 1819 RSU_ASSERT_LOCKED(sc); 1820 1821 if (!sc->sc_running) 1822 return (0); 1823 1824 /* check if it was automatically removed by firmware */ 1825 error = rsu_cam_read(sc, R92S_CAM_CTL0(keyix), &val); 1826 if (error == 0 && (val & R92S_CAM_VALID) == 0) { 1827 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1828 "%s: key %u does not exist\n", __func__, keyix); 1829 clrbit(sc->keys_bmap, keyix); 1830 return (0); 1831 } 1832 1833 memset(&key, 0, sizeof(key)); 1834 key.cam_id = keyix; 1835 1836 RSU_DPRINTF(sc, RSU_DEBUG_KEY | RSU_DEBUG_FWCMD, 1837 "%s: removing key %u\n", __func__, key.cam_id); 1838 1839 error = rsu_fw_cmd(sc, R92S_CMD_SET_KEY, &key, sizeof(key)); 1840 if (error != 0) { 1841 device_printf(sc->sc_dev, 1842 "%s: cannot send firmware command, error %d\n", 1843 __func__, error); 1844 goto finish; 1845 } 1846 1847 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(5)); 1848 1849 /* 1850 * Clear 'valid' bit manually (cannot be done via firmware command). 1851 * Used for key check + when firmware command cannot be sent. 1852 */ 1853 finish: 1854 rsu_cam_write(sc, R92S_CAM_CTL0(keyix), 0); 1855 1856 clrbit(sc->keys_bmap, keyix); 1857 1858 return (rsu_key_check(sc, keyix, 0)); 1859 } 1860 1861 static void 1862 rsu_delete_key_pair_cb(void *arg, int pending __unused) 1863 { 1864 struct rsu_softc *sc = arg; 1865 int i; 1866 1867 RSU_DELKEY_BMAP_LOCK(sc); 1868 for (i = IEEE80211_WEP_NKID; i < R92S_CAM_ENTRY_LIMIT; i++) { 1869 if (isset(sc->free_keys_bmap, i)) { 1870 RSU_DELKEY_BMAP_UNLOCK(sc); 1871 1872 RSU_LOCK(sc); 1873 RSU_DPRINTF(sc, RSU_DEBUG_KEY, 1874 "%s: calling rsu_delete_key() with keyix = %d\n", 1875 __func__, i); 1876 (void) rsu_delete_key(sc, i); 1877 RSU_UNLOCK(sc); 1878 1879 RSU_DELKEY_BMAP_LOCK(sc); 1880 clrbit(sc->free_keys_bmap, i); 1881 1882 /* bmap can be changed */ 1883 i = IEEE80211_WEP_NKID - 1; 1884 continue; 1885 } 1886 } 1887 RSU_DELKEY_BMAP_UNLOCK(sc); 1888 } 1889 1890 static int 1891 rsu_site_survey(struct rsu_softc *sc, struct ieee80211_scan_ssid *ssid) 1892 { 1893 struct r92s_fw_cmd_sitesurvey cmd; 1894 1895 RSU_ASSERT_LOCKED(sc); 1896 1897 memset(&cmd, 0, sizeof(cmd)); 1898 /* TODO: passive channels? */ 1899 if (sc->sc_active_scan) 1900 cmd.active = htole32(1); 1901 cmd.limit = htole32(48); 1902 1903 if (ssid != NULL) { 1904 sc->sc_extra_scan = 1; 1905 cmd.ssidlen = htole32(ssid->len); 1906 memcpy(cmd.ssid, ssid->ssid, ssid->len); 1907 } 1908 #ifdef USB_DEBUG 1909 if (rsu_debug & (RSU_DEBUG_SCAN | RSU_DEBUG_FWCMD)) { 1910 device_printf(sc->sc_dev, 1911 "sending site survey command, active %d", 1912 le32toh(cmd.active)); 1913 if (ssid != NULL) { 1914 printf(", ssid: "); 1915 ieee80211_print_essid(cmd.ssid, le32toh(cmd.ssidlen)); 1916 } 1917 printf("\n"); 1918 } 1919 #endif 1920 return (rsu_fw_cmd(sc, R92S_CMD_SITE_SURVEY, &cmd, sizeof(cmd))); 1921 } 1922 1923 static int 1924 rsu_join_bss(struct rsu_softc *sc, struct ieee80211_node *ni) 1925 { 1926 struct ieee80211com *ic = &sc->sc_ic; 1927 struct ieee80211vap *vap = ni->ni_vap; 1928 struct ndis_wlan_bssid_ex *bss; 1929 struct ndis_802_11_fixed_ies *fixed; 1930 struct r92s_fw_cmd_auth auth; 1931 uint8_t buf[sizeof(*bss) + 128] __aligned(4); 1932 uint8_t *frm; 1933 uint8_t opmode; 1934 int error; 1935 1936 RSU_ASSERT_LOCKED(sc); 1937 1938 /* Let the FW decide the opmode based on the capinfo field. */ 1939 opmode = NDIS802_11AUTOUNKNOWN; 1940 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1941 "%s: setting operating mode to %d\n", 1942 __func__, opmode); 1943 error = rsu_fw_cmd(sc, R92S_CMD_SET_OPMODE, &opmode, sizeof(opmode)); 1944 if (error != 0) 1945 return (error); 1946 1947 memset(&auth, 0, sizeof(auth)); 1948 if (vap->iv_flags & IEEE80211_F_WPA) { 1949 auth.mode = R92S_AUTHMODE_WPA; 1950 auth.dot1x = (ni->ni_authmode == IEEE80211_AUTH_8021X); 1951 } else 1952 auth.mode = R92S_AUTHMODE_OPEN; 1953 RSU_DPRINTF(sc, RSU_DEBUG_RESET, 1954 "%s: setting auth mode to %d\n", 1955 __func__, auth.mode); 1956 error = rsu_fw_cmd(sc, R92S_CMD_SET_AUTH, &auth, sizeof(auth)); 1957 if (error != 0) 1958 return (error); 1959 1960 memset(buf, 0, sizeof(buf)); 1961 bss = (struct ndis_wlan_bssid_ex *)buf; 1962 IEEE80211_ADDR_COPY(bss->macaddr, ni->ni_bssid); 1963 bss->ssid.ssidlen = htole32(ni->ni_esslen); 1964 memcpy(bss->ssid.ssid, ni->ni_essid, ni->ni_esslen); 1965 if (vap->iv_flags & (IEEE80211_F_PRIVACY | IEEE80211_F_WPA)) 1966 bss->privacy = htole32(1); 1967 bss->rssi = htole32(ni->ni_avgrssi); 1968 if (ic->ic_curmode == IEEE80211_MODE_11B) 1969 bss->networktype = htole32(NDIS802_11DS); 1970 else 1971 bss->networktype = htole32(NDIS802_11OFDM24); 1972 bss->config.len = htole32(sizeof(bss->config)); 1973 bss->config.bintval = htole32(ni->ni_intval); 1974 bss->config.dsconfig = htole32(ieee80211_chan2ieee(ic, ni->ni_chan)); 1975 bss->inframode = htole32(NDIS802_11INFRASTRUCTURE); 1976 /* XXX verify how this is supposed to look! */ 1977 memcpy(bss->supprates, ni->ni_rates.rs_rates, 1978 ni->ni_rates.rs_nrates); 1979 /* Write the fixed fields of the beacon frame. */ 1980 fixed = (struct ndis_802_11_fixed_ies *)&bss[1]; 1981 memcpy(&fixed->tstamp, ni->ni_tstamp.data, 8); 1982 fixed->bintval = htole16(ni->ni_intval); 1983 fixed->capabilities = htole16(ni->ni_capinfo); 1984 /* Write IEs to be included in the association request. */ 1985 frm = (uint8_t *)&fixed[1]; 1986 frm = ieee80211_add_rsn(frm, vap); 1987 frm = ieee80211_add_wpa(frm, vap); 1988 frm = ieee80211_add_qos(frm, ni); 1989 if ((ic->ic_flags & IEEE80211_F_WME) && 1990 (ni->ni_ies.wme_ie != NULL)) 1991 frm = ieee80211_add_wme_info(frm, &ic->ic_wme, ni); 1992 if (ni->ni_flags & IEEE80211_NODE_HT) { 1993 frm = ieee80211_add_htcap(frm, ni); 1994 frm = ieee80211_add_htinfo(frm, ni); 1995 } 1996 bss->ieslen = htole32(frm - (uint8_t *)fixed); 1997 bss->len = htole32(((frm - buf) + 3) & ~3); 1998 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_FWCMD, 1999 "%s: sending join bss command to %s chan %d\n", 2000 __func__, 2001 ether_sprintf(bss->macaddr), le32toh(bss->config.dsconfig)); 2002 return (rsu_fw_cmd(sc, R92S_CMD_JOIN_BSS, buf, sizeof(buf))); 2003 } 2004 2005 static int 2006 rsu_disconnect(struct rsu_softc *sc) 2007 { 2008 uint32_t zero = 0; /* :-) */ 2009 2010 /* Disassociate from our current BSS. */ 2011 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2012 "%s: sending disconnect command\n", __func__); 2013 return (rsu_fw_cmd(sc, R92S_CMD_DISCONNECT, &zero, sizeof(zero))); 2014 } 2015 2016 /* 2017 * Map the hardware provided RSSI value to a signal level. 2018 * For the most part it's just something we divide by and cap 2019 * so it doesn't overflow the representation by net80211. 2020 */ 2021 static int 2022 rsu_hwrssi_to_rssi(struct rsu_softc *sc, int hw_rssi) 2023 { 2024 int v; 2025 2026 if (hw_rssi == 0) 2027 return (0); 2028 v = hw_rssi >> 4; 2029 if (v > 80) 2030 v = 80; 2031 return (v); 2032 } 2033 2034 CTASSERT(MCLBYTES > sizeof(struct ieee80211_frame)); 2035 2036 static void 2037 rsu_event_survey(struct rsu_softc *sc, uint8_t *buf, int len) 2038 { 2039 struct ieee80211com *ic = &sc->sc_ic; 2040 struct ieee80211_frame *wh; 2041 struct ndis_wlan_bssid_ex *bss; 2042 struct ieee80211_rx_stats rxs; 2043 struct mbuf *m; 2044 uint32_t ieslen; 2045 uint32_t pktlen; 2046 2047 if (__predict_false(len < sizeof(*bss))) 2048 return; 2049 bss = (struct ndis_wlan_bssid_ex *)buf; 2050 ieslen = le32toh(bss->ieslen); 2051 /* range check length of information element */ 2052 if (__predict_false(ieslen > (uint32_t)(len - sizeof(*bss)))) 2053 return; 2054 2055 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2056 "%s: found BSS %s: len=%d chan=%d inframode=%d " 2057 "networktype=%d privacy=%d, RSSI=%d\n", 2058 __func__, 2059 ether_sprintf(bss->macaddr), ieslen, 2060 le32toh(bss->config.dsconfig), le32toh(bss->inframode), 2061 le32toh(bss->networktype), le32toh(bss->privacy), 2062 le32toh(bss->rssi)); 2063 2064 /* Build a fake beacon frame to let net80211 do all the parsing. */ 2065 /* XXX TODO: just call the new scan API methods! */ 2066 if (__predict_false(ieslen > (size_t)(MCLBYTES - sizeof(*wh)))) 2067 return; 2068 pktlen = sizeof(*wh) + ieslen; 2069 m = m_get2(pktlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2070 if (__predict_false(m == NULL)) 2071 return; 2072 wh = mtod(m, struct ieee80211_frame *); 2073 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2074 IEEE80211_FC0_SUBTYPE_BEACON; 2075 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2076 USETW(wh->i_dur, 0); 2077 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 2078 IEEE80211_ADDR_COPY(wh->i_addr2, bss->macaddr); 2079 IEEE80211_ADDR_COPY(wh->i_addr3, bss->macaddr); 2080 *(uint16_t *)wh->i_seq = 0; 2081 memcpy(&wh[1], (uint8_t *)&bss[1], ieslen); 2082 2083 /* Finalize mbuf. */ 2084 m->m_pkthdr.len = m->m_len = pktlen; 2085 2086 /* Set channel flags for input path */ 2087 bzero(&rxs, sizeof(rxs)); 2088 rxs.r_flags |= IEEE80211_R_IEEE | IEEE80211_R_FREQ; 2089 rxs.r_flags |= IEEE80211_R_BAND; 2090 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2091 rxs.c_ieee = le32toh(bss->config.dsconfig); 2092 rxs.c_freq = ieee80211_ieee2mhz(rxs.c_ieee, IEEE80211_CHAN_2GHZ); 2093 rxs.c_band = IEEE80211_CHAN_2GHZ; 2094 /* This is a number from 0..100; so let's just divide it down a bit */ 2095 rxs.c_rssi = le32toh(bss->rssi) / 2; 2096 rxs.c_nf = -96; 2097 if (ieee80211_add_rx_params(m, &rxs) == 0) 2098 return; 2099 2100 /* XXX avoid a LOR */ 2101 RSU_UNLOCK(sc); 2102 ieee80211_input_mimo_all(ic, m); 2103 RSU_LOCK(sc); 2104 } 2105 2106 static void 2107 rsu_event_join_bss(struct rsu_softc *sc, uint8_t *buf, int len) 2108 { 2109 struct ieee80211com *ic = &sc->sc_ic; 2110 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2111 struct ieee80211_node *ni = vap->iv_bss; 2112 struct r92s_event_join_bss *rsp; 2113 uint32_t tmp; 2114 int res; 2115 2116 if (__predict_false(len < sizeof(*rsp))) 2117 return; 2118 rsp = (struct r92s_event_join_bss *)buf; 2119 res = (int)le32toh(rsp->join_res); 2120 2121 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2122 "%s: Rx join BSS event len=%d res=%d\n", 2123 __func__, len, res); 2124 2125 /* 2126 * XXX Don't do this; there's likely a better way to tell 2127 * the caller we failed. 2128 */ 2129 if (res <= 0) { 2130 RSU_UNLOCK(sc); 2131 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2132 RSU_LOCK(sc); 2133 return; 2134 } 2135 2136 tmp = le32toh(rsp->associd); 2137 if (tmp >= vap->iv_max_aid) { 2138 RSU_DPRINTF(sc, RSU_DEBUG_ANY, "Assoc ID overflow\n"); 2139 tmp = 1; 2140 } 2141 RSU_DPRINTF(sc, RSU_DEBUG_STATE | RSU_DEBUG_FWCMD, 2142 "%s: associated with %s associd=%d\n", 2143 __func__, ether_sprintf(rsp->bss.macaddr), tmp); 2144 /* XXX is this required? What's the top two bits for again? */ 2145 ni->ni_associd = tmp | 0xc000; 2146 2147 /* Refresh Rx filter (was changed by firmware). */ 2148 sc->sc_vap_is_running = 1; 2149 rsu_rxfilter_refresh(sc); 2150 2151 RSU_UNLOCK(sc); 2152 ieee80211_new_state(vap, IEEE80211_S_RUN, 2153 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 2154 RSU_LOCK(sc); 2155 } 2156 2157 static void 2158 rsu_event_addba_req_report(struct rsu_softc *sc, uint8_t *buf, int len) 2159 { 2160 struct ieee80211com *ic = &sc->sc_ic; 2161 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2162 struct r92s_add_ba_event *ba = (void *) buf; 2163 struct ieee80211_node *ni; 2164 2165 if (len < sizeof(*ba)) { 2166 device_printf(sc->sc_dev, "%s: short read (%d)\n", __func__, len); 2167 return; 2168 } 2169 2170 if (vap == NULL) 2171 return; 2172 2173 RSU_DPRINTF(sc, RSU_DEBUG_AMPDU, "%s: mac=%s, tid=%d, ssn=%d\n", 2174 __func__, 2175 ether_sprintf(ba->mac_addr), 2176 (int) ba->tid, 2177 (int) le16toh(ba->ssn) >> 4); 2178 2179 /* XXX do node lookup; this is STA specific */ 2180 2181 ni = ieee80211_ref_node(vap->iv_bss); 2182 ieee80211_ampdu_rx_start_ext(ni, ba->tid, le16toh(ba->ssn) >> 4, 32); 2183 ieee80211_free_node(ni); 2184 } 2185 2186 static void 2187 rsu_rx_event(struct rsu_softc *sc, uint8_t code, uint8_t *buf, int len) 2188 { 2189 struct ieee80211com *ic = &sc->sc_ic; 2190 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2191 2192 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2193 "%s: Rx event code=%d len=%d\n", __func__, code, len); 2194 switch (code) { 2195 case R92S_EVT_SURVEY: 2196 rsu_event_survey(sc, buf, len); 2197 break; 2198 case R92S_EVT_SURVEY_DONE: 2199 RSU_DPRINTF(sc, RSU_DEBUG_SCAN, 2200 "%s: %s scan done, found %d BSS\n", 2201 __func__, sc->sc_extra_scan ? "direct" : "broadcast", 2202 le32toh(*(uint32_t *)buf)); 2203 if (sc->sc_extra_scan == 1) { 2204 /* Send broadcast probe request. */ 2205 sc->sc_extra_scan = 0; 2206 if (vap != NULL && rsu_site_survey(sc, NULL) != 0) { 2207 RSU_UNLOCK(sc); 2208 ieee80211_cancel_scan(vap); 2209 RSU_LOCK(sc); 2210 } 2211 break; 2212 } 2213 if (vap != NULL) { 2214 RSU_UNLOCK(sc); 2215 ieee80211_scan_done(vap); 2216 RSU_LOCK(sc); 2217 } 2218 break; 2219 case R92S_EVT_JOIN_BSS: 2220 if (vap->iv_state == IEEE80211_S_AUTH) 2221 rsu_event_join_bss(sc, buf, len); 2222 break; 2223 2224 /* TODO: what about R92S_EVT_ADD_STA? and decoding macid? */ 2225 /* It likely is required for IBSS/AP mode */ 2226 2227 /* TODO: should I be doing this transition in AP mode? */ 2228 case R92S_EVT_DEL_STA: 2229 RSU_DPRINTF(sc, RSU_DEBUG_FWCMD | RSU_DEBUG_STATE, 2230 "%s: disassociated from %s\n", __func__, 2231 ether_sprintf(buf)); 2232 if (vap->iv_state == IEEE80211_S_RUN && 2233 IEEE80211_ADDR_EQ(vap->iv_bss->ni_bssid, buf)) { 2234 RSU_UNLOCK(sc); 2235 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 2236 RSU_LOCK(sc); 2237 } 2238 break; 2239 case R92S_EVT_WPS_PBC: 2240 RSU_DPRINTF(sc, RSU_DEBUG_RX | RSU_DEBUG_FWCMD, 2241 "%s: WPS PBC pushed.\n", __func__); 2242 break; 2243 case R92S_EVT_FWDBG: 2244 buf[60] = '\0'; 2245 /* TODO: some are \n terminated, some aren't, sigh */ 2246 RSU_DPRINTF(sc, RSU_DEBUG_FWDBG, "FWDBG: %s\n", (char *)buf); 2247 break; 2248 case R92S_EVT_ADDBA_REQ_REPORT: 2249 rsu_event_addba_req_report(sc, buf, len); 2250 break; 2251 default: 2252 device_printf(sc->sc_dev, "%s: unhandled code (%d)\n", __func__, code); 2253 break; 2254 } 2255 } 2256 2257 static void 2258 rsu_rx_multi_event(struct rsu_softc *sc, uint8_t *buf, int len) 2259 { 2260 struct r92s_fw_cmd_hdr *cmd; 2261 int cmdsz; 2262 2263 RSU_DPRINTF(sc, RSU_DEBUG_RX, "%s: Rx events len=%d\n", __func__, len); 2264 2265 /* Skip Rx status. */ 2266 buf += sizeof(struct r92s_rx_stat); 2267 len -= sizeof(struct r92s_rx_stat); 2268 2269 /* Process all events. */ 2270 for (;;) { 2271 /* Check that command header fits. */ 2272 if (__predict_false(len < sizeof(*cmd))) 2273 break; 2274 cmd = (struct r92s_fw_cmd_hdr *)buf; 2275 /* Check that command payload fits. */ 2276 cmdsz = le16toh(cmd->len); 2277 if (__predict_false(len < sizeof(*cmd) + cmdsz)) 2278 break; 2279 2280 /* Process firmware event. */ 2281 rsu_rx_event(sc, cmd->code, (uint8_t *)&cmd[1], cmdsz); 2282 2283 if (!(cmd->seq & R92S_FW_CMD_MORE)) 2284 break; 2285 buf += sizeof(*cmd) + cmdsz; 2286 len -= sizeof(*cmd) + cmdsz; 2287 } 2288 } 2289 2290 static int8_t 2291 rsu_get_rssi(struct rsu_softc *sc, int rate, void *physt) 2292 { 2293 static const int8_t cckoff[] = { 14, -2, -20, -40 }; 2294 struct r92s_rx_phystat *phy; 2295 struct r92s_rx_cck *cck; 2296 uint8_t rpt; 2297 int8_t rssi; 2298 2299 if (rate <= 3) { 2300 cck = (struct r92s_rx_cck *)physt; 2301 rpt = (cck->agc_rpt >> 6) & 0x3; 2302 rssi = cck->agc_rpt & 0x3e; 2303 rssi = cckoff[rpt] - rssi; 2304 } else { /* OFDM/HT. */ 2305 phy = (struct r92s_rx_phystat *)physt; 2306 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 106; 2307 } 2308 return (rssi); 2309 } 2310 2311 static struct mbuf * 2312 rsu_rx_copy_to_mbuf(struct rsu_softc *sc, struct r92s_rx_stat *stat, 2313 int totlen) 2314 { 2315 struct ieee80211com *ic = &sc->sc_ic; 2316 struct mbuf *m; 2317 uint32_t rxdw0; 2318 int pktlen; 2319 2320 rxdw0 = le32toh(stat->rxdw0); 2321 if (__predict_false(rxdw0 & (R92S_RXDW0_CRCERR | R92S_RXDW0_ICVERR))) { 2322 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2323 "%s: RX flags error (%s)\n", __func__, 2324 rxdw0 & R92S_RXDW0_CRCERR ? "CRC" : "ICV"); 2325 goto fail; 2326 } 2327 2328 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2329 if (__predict_false(pktlen < sizeof (struct ieee80211_frame_ack))) { 2330 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2331 "%s: frame is too short: %d\n", __func__, pktlen); 2332 goto fail; 2333 } 2334 2335 m = m_get2(totlen, M_NOWAIT, MT_DATA, M_PKTHDR); 2336 if (__predict_false(m == NULL)) { 2337 device_printf(sc->sc_dev, 2338 "%s: could not allocate RX mbuf, totlen %d\n", 2339 __func__, totlen); 2340 goto fail; 2341 } 2342 2343 /* Finalize mbuf. */ 2344 memcpy(mtod(m, uint8_t *), (uint8_t *)stat, totlen); 2345 m->m_pkthdr.len = m->m_len = totlen; 2346 2347 return (m); 2348 fail: 2349 counter_u64_add(ic->ic_ierrors, 1); 2350 return (NULL); 2351 } 2352 2353 static uint32_t 2354 rsu_get_tsf_low(struct rsu_softc *sc) 2355 { 2356 return (rsu_read_4(sc, R92S_TSFTR)); 2357 } 2358 2359 static uint32_t 2360 rsu_get_tsf_high(struct rsu_softc *sc) 2361 { 2362 return (rsu_read_4(sc, R92S_TSFTR + 4)); 2363 } 2364 2365 static struct ieee80211_node * 2366 rsu_rx_frame(struct rsu_softc *sc, struct mbuf *m) 2367 { 2368 struct ieee80211com *ic = &sc->sc_ic; 2369 struct ieee80211_frame_min *wh; 2370 struct ieee80211_rx_stats rxs; 2371 struct r92s_rx_stat *stat; 2372 uint32_t rxdw0, rxdw3; 2373 uint8_t cipher, rate; 2374 int infosz; 2375 int rssi; 2376 2377 stat = mtod(m, struct r92s_rx_stat *); 2378 rxdw0 = le32toh(stat->rxdw0); 2379 rxdw3 = le32toh(stat->rxdw3); 2380 2381 rate = MS(rxdw3, R92S_RXDW3_RATE); 2382 cipher = MS(rxdw0, R92S_RXDW0_CIPHER); 2383 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2384 2385 /* Get RSSI from PHY status descriptor if present. */ 2386 if (infosz != 0 && (rxdw0 & R92S_RXDW0_PHYST)) 2387 rssi = rsu_get_rssi(sc, rate, &stat[1]); 2388 else { 2389 /* Cheat and get the last calibrated RSSI */ 2390 rssi = rsu_hwrssi_to_rssi(sc, sc->sc_currssi); 2391 } 2392 2393 /* Hardware does Rx TCP checksum offload. */ 2394 /* 2395 * This flag can be set for some other 2396 * (e.g., EAPOL) frame types, so don't rely on it. 2397 */ 2398 if (rxdw3 & R92S_RXDW3_TCPCHKVALID) { 2399 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2400 "%s: TCP/IP checksums: %schecked / %schecked\n", 2401 __func__, 2402 (rxdw3 & R92S_RXDW3_TCPCHKRPT) ? "" : "not ", 2403 (rxdw3 & R92S_RXDW3_IPCHKRPT) ? "" : "not "); 2404 2405 /* 2406 * 'IP header checksum valid' bit will not be set if 2407 * the frame was not checked / has incorrect checksum / 2408 * does not have checksum (IPv6). 2409 * 2410 * NB: if DF bit is not set then frame will not be checked. 2411 */ 2412 if (rxdw3 & R92S_RXDW3_IPCHKRPT) { 2413 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2414 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2415 } 2416 2417 /* 2418 * This is independent of the above check. 2419 */ 2420 if (rxdw3 & R92S_RXDW3_TCPCHKRPT) { 2421 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 2422 m->m_pkthdr.csum_flags |= CSUM_PSEUDO_HDR; 2423 m->m_pkthdr.csum_data = 0xffff; 2424 } 2425 } 2426 2427 /* RX flags */ 2428 2429 /* Set channel flags for input path */ 2430 bzero(&rxs, sizeof(rxs)); 2431 2432 /* normal RSSI */ 2433 rxs.r_flags |= IEEE80211_R_NF | IEEE80211_R_RSSI; 2434 rxs.c_rssi = rssi; 2435 rxs.c_nf = -96; 2436 2437 /* Rate */ 2438 if (rate < 12) { 2439 rxs.c_rate = ridx2rate[rate]; 2440 if (RSU_RATE_IS_CCK(rate)) 2441 rxs.c_pktflags |= IEEE80211_RX_F_CCK; 2442 else 2443 rxs.c_pktflags |= IEEE80211_RX_F_OFDM; 2444 } else { 2445 rxs.c_rate = IEEE80211_RATE_MCS | (rate - 12); 2446 rxs.c_pktflags |= IEEE80211_RX_F_HT; 2447 } 2448 2449 if (ieee80211_radiotap_active(ic)) { 2450 struct rsu_rx_radiotap_header *tap = &sc->sc_rxtap; 2451 2452 /* Map HW rate index to 802.11 rate. */ 2453 tap->wr_flags = 0; /* TODO */ 2454 tap->wr_tsft = rsu_get_tsf_high(sc); 2455 if (le32toh(stat->tsf_low) > rsu_get_tsf_low(sc)) 2456 tap->wr_tsft--; 2457 tap->wr_tsft = (uint64_t)htole32(tap->wr_tsft) << 32; 2458 tap->wr_tsft += stat->tsf_low; 2459 2460 tap->wr_rate = rxs.c_rate; 2461 tap->wr_dbm_antsignal = rssi; 2462 }; 2463 2464 (void) ieee80211_add_rx_params(m, &rxs); 2465 2466 /* Drop descriptor. */ 2467 m_adj(m, sizeof(*stat) + infosz); 2468 wh = mtod(m, struct ieee80211_frame_min *); 2469 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 2470 cipher != R92S_KEY_ALGO_NONE) { 2471 m->m_flags |= M_WEP; 2472 } 2473 2474 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2475 "%s: Rx frame len %d, rate %d, infosz %d\n", 2476 __func__, m->m_len, rate, infosz); 2477 2478 if (m->m_len >= sizeof(*wh)) 2479 return (ieee80211_find_rxnode(ic, wh)); 2480 2481 return (NULL); 2482 } 2483 2484 static struct mbuf * 2485 rsu_rx_multi_frame(struct rsu_softc *sc, uint8_t *buf, int len) 2486 { 2487 struct r92s_rx_stat *stat; 2488 uint32_t rxdw0; 2489 int totlen, pktlen, infosz, npkts; 2490 struct mbuf *m, *m0 = NULL, *prevm = NULL; 2491 2492 /* 2493 * don't pass packets to the ieee80211 framework if the driver isn't 2494 * RUNNING. 2495 */ 2496 if (!sc->sc_running) 2497 return (NULL); 2498 2499 /* Get the number of encapsulated frames. */ 2500 stat = (struct r92s_rx_stat *)buf; 2501 npkts = MS(le32toh(stat->rxdw2), R92S_RXDW2_PKTCNT); 2502 RSU_DPRINTF(sc, RSU_DEBUG_RX, 2503 "%s: Rx %d frames in one chunk\n", __func__, npkts); 2504 2505 /* Process all of them. */ 2506 while (npkts-- > 0) { 2507 if (__predict_false(len < sizeof(*stat))) 2508 break; 2509 stat = (struct r92s_rx_stat *)buf; 2510 rxdw0 = le32toh(stat->rxdw0); 2511 2512 pktlen = MS(rxdw0, R92S_RXDW0_PKTLEN); 2513 if (__predict_false(pktlen == 0)) 2514 break; 2515 2516 infosz = MS(rxdw0, R92S_RXDW0_INFOSZ) * 8; 2517 2518 /* Make sure everything fits in xfer. */ 2519 totlen = sizeof(*stat) + infosz + pktlen; 2520 if (__predict_false(totlen > len)) 2521 break; 2522 2523 /* Process 802.11 frame. */ 2524 m = rsu_rx_copy_to_mbuf(sc, stat, totlen); 2525 if (m0 == NULL) 2526 m0 = m; 2527 if (prevm == NULL) 2528 prevm = m; 2529 else { 2530 prevm->m_next = m; 2531 prevm = m; 2532 } 2533 /* Next chunk is 128-byte aligned. */ 2534 totlen = (totlen + 127) & ~127; 2535 buf += totlen; 2536 len -= totlen; 2537 } 2538 2539 return (m0); 2540 } 2541 2542 static struct mbuf * 2543 rsu_rxeof(struct usb_xfer *xfer, struct rsu_data *data) 2544 { 2545 struct rsu_softc *sc = data->sc; 2546 struct ieee80211com *ic = &sc->sc_ic; 2547 struct r92s_rx_stat *stat; 2548 int len; 2549 2550 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 2551 2552 if (__predict_false(len < sizeof(*stat))) { 2553 RSU_DPRINTF(sc, RSU_DEBUG_RX, "xfer too short %d\n", len); 2554 counter_u64_add(ic->ic_ierrors, 1); 2555 return (NULL); 2556 } 2557 /* Determine if it is a firmware C2H event or an 802.11 frame. */ 2558 stat = (struct r92s_rx_stat *)data->buf; 2559 if ((le32toh(stat->rxdw1) & 0x1ff) == 0x1ff) { 2560 rsu_rx_multi_event(sc, data->buf, len); 2561 /* No packets to process. */ 2562 return (NULL); 2563 } else 2564 return (rsu_rx_multi_frame(sc, data->buf, len)); 2565 } 2566 2567 static void 2568 rsu_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error) 2569 { 2570 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2571 struct ieee80211com *ic = &sc->sc_ic; 2572 struct ieee80211_node *ni; 2573 struct mbuf *m = NULL, *next; 2574 struct rsu_data *data; 2575 2576 RSU_ASSERT_LOCKED(sc); 2577 2578 switch (USB_GET_STATE(xfer)) { 2579 case USB_ST_TRANSFERRED: 2580 data = STAILQ_FIRST(&sc->sc_rx_active); 2581 if (data == NULL) 2582 goto tr_setup; 2583 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2584 m = rsu_rxeof(xfer, data); 2585 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2586 /* FALLTHROUGH */ 2587 case USB_ST_SETUP: 2588 tr_setup: 2589 data = STAILQ_FIRST(&sc->sc_rx_inactive); 2590 if (data == NULL) { 2591 KASSERT(m == NULL, ("mbuf isn't NULL")); 2592 return; 2593 } 2594 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next); 2595 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next); 2596 usbd_xfer_set_frame_data(xfer, 0, data->buf, 2597 usbd_xfer_max_len(xfer)); 2598 usbd_transfer_submit(xfer); 2599 /* 2600 * To avoid LOR we should unlock our private mutex here to call 2601 * ieee80211_input() because here is at the end of a USB 2602 * callback and safe to unlock. 2603 */ 2604 while (m != NULL) { 2605 next = m->m_next; 2606 m->m_next = NULL; 2607 2608 ni = rsu_rx_frame(sc, m); 2609 RSU_UNLOCK(sc); 2610 2611 if (ni != NULL) { 2612 if (ni->ni_flags & IEEE80211_NODE_HT) 2613 m->m_flags |= M_AMPDU; 2614 (void)ieee80211_input_mimo(ni, m); 2615 ieee80211_free_node(ni); 2616 } else 2617 (void)ieee80211_input_mimo_all(ic, m); 2618 2619 RSU_LOCK(sc); 2620 m = next; 2621 } 2622 break; 2623 default: 2624 /* needs it to the inactive queue due to a error. */ 2625 data = STAILQ_FIRST(&sc->sc_rx_active); 2626 if (data != NULL) { 2627 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next); 2628 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next); 2629 } 2630 if (error != USB_ERR_CANCELLED) { 2631 usbd_xfer_set_stall(xfer); 2632 counter_u64_add(ic->ic_ierrors, 1); 2633 goto tr_setup; 2634 } 2635 break; 2636 } 2637 2638 } 2639 2640 static void 2641 rsu_txeof(struct usb_xfer *xfer, struct rsu_data *data) 2642 { 2643 #ifdef USB_DEBUG 2644 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2645 #endif 2646 2647 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: called; data=%p\n", 2648 __func__, 2649 data); 2650 2651 if (data->m) { 2652 /* XXX status? */ 2653 ieee80211_tx_complete(data->ni, data->m, 0); 2654 data->m = NULL; 2655 data->ni = NULL; 2656 } 2657 } 2658 2659 static void 2660 rsu_bulk_tx_callback_sub(struct usb_xfer *xfer, usb_error_t error, 2661 uint8_t which) 2662 { 2663 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2664 struct ieee80211com *ic = &sc->sc_ic; 2665 struct rsu_data *data; 2666 2667 RSU_ASSERT_LOCKED(sc); 2668 2669 switch (USB_GET_STATE(xfer)) { 2670 case USB_ST_TRANSFERRED: 2671 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2672 if (data == NULL) 2673 goto tr_setup; 2674 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, "%s: transfer done %p\n", 2675 __func__, data); 2676 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2677 rsu_txeof(xfer, data); 2678 rsu_freebuf(sc, data); 2679 /* FALLTHROUGH */ 2680 case USB_ST_SETUP: 2681 tr_setup: 2682 data = STAILQ_FIRST(&sc->sc_tx_pending[which]); 2683 if (data == NULL) { 2684 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2685 "%s: empty pending queue sc %p\n", __func__, sc); 2686 return; 2687 } 2688 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending[which], next); 2689 STAILQ_INSERT_TAIL(&sc->sc_tx_active[which], data, next); 2690 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen); 2691 RSU_DPRINTF(sc, RSU_DEBUG_TXDONE, 2692 "%s: submitting transfer %p\n", 2693 __func__, 2694 data); 2695 usbd_transfer_submit(xfer); 2696 break; 2697 default: 2698 data = STAILQ_FIRST(&sc->sc_tx_active[which]); 2699 if (data != NULL) { 2700 STAILQ_REMOVE_HEAD(&sc->sc_tx_active[which], next); 2701 rsu_txeof(xfer, data); 2702 rsu_freebuf(sc, data); 2703 } 2704 counter_u64_add(ic->ic_oerrors, 1); 2705 2706 if (error != USB_ERR_CANCELLED) { 2707 usbd_xfer_set_stall(xfer); 2708 goto tr_setup; 2709 } 2710 break; 2711 } 2712 2713 /* 2714 * XXX TODO: if the queue is low, flush out FF TX frames. 2715 * Remember to unlock the driver for now; net80211 doesn't 2716 * defer it for us. 2717 */ 2718 } 2719 2720 static void 2721 rsu_bulk_tx_callback_be_bk(struct usb_xfer *xfer, usb_error_t error) 2722 { 2723 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2724 2725 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_BE_BK); 2726 2727 /* This kicks the TX taskqueue */ 2728 rsu_start(sc); 2729 } 2730 2731 static void 2732 rsu_bulk_tx_callback_vi_vo(struct usb_xfer *xfer, usb_error_t error) 2733 { 2734 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2735 2736 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_VI_VO); 2737 2738 /* This kicks the TX taskqueue */ 2739 rsu_start(sc); 2740 } 2741 2742 static void 2743 rsu_bulk_tx_callback_h2c(struct usb_xfer *xfer, usb_error_t error) 2744 { 2745 struct rsu_softc *sc = usbd_xfer_softc(xfer); 2746 2747 rsu_bulk_tx_callback_sub(xfer, error, RSU_BULK_TX_H2C); 2748 2749 /* This kicks the TX taskqueue */ 2750 rsu_start(sc); 2751 } 2752 2753 /* 2754 * Transmit the given frame. 2755 * 2756 * This doesn't free the node or mbuf upon failure. 2757 */ 2758 static int 2759 rsu_tx_start(struct rsu_softc *sc, struct ieee80211_node *ni, 2760 struct mbuf *m0, struct rsu_data *data) 2761 { 2762 const struct ieee80211_txparam *tp = ni->ni_txparms; 2763 struct ieee80211vap *vap = ni->ni_vap; 2764 struct ieee80211_frame *wh; 2765 struct ieee80211_key *k = NULL; 2766 struct r92s_tx_desc *txd; 2767 uint8_t rate, ridx, type, cipher, qos; 2768 int prio = 0; 2769 uint8_t which; 2770 int hasqos; 2771 int ismcast; 2772 int xferlen; 2773 int qid; 2774 2775 RSU_ASSERT_LOCKED(sc); 2776 2777 wh = mtod(m0, struct ieee80211_frame *); 2778 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2779 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 2780 2781 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: data=%p, m=%p\n", 2782 __func__, data, m0); 2783 2784 /* Choose a TX rate index. */ 2785 if (type == IEEE80211_FC0_TYPE_MGT || 2786 type == IEEE80211_FC0_TYPE_CTL || 2787 (m0->m_flags & M_EAPOL) != 0) 2788 rate = tp->mgmtrate; 2789 else if (ismcast) 2790 rate = tp->mcastrate; 2791 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 2792 rate = tp->ucastrate; 2793 else 2794 rate = 0; 2795 2796 if (rate != 0) 2797 ridx = rate2ridx(rate); 2798 2799 /* Assign sequence number, A-MPDU or otherwise */ 2800 ieee80211_output_seqno_assign(ni, -1, m0); 2801 2802 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2803 k = ieee80211_crypto_encap(ni, m0); 2804 if (k == NULL) { 2805 device_printf(sc->sc_dev, 2806 "ieee80211_crypto_encap returns NULL.\n"); 2807 /* XXX we don't expect the fragmented frames */ 2808 return (ENOBUFS); 2809 } 2810 wh = mtod(m0, struct ieee80211_frame *); 2811 } 2812 /* If we have QoS then use it */ 2813 /* XXX TODO: mbuf WME/PRI versus TID? */ 2814 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2815 /* Has QoS */ 2816 prio = M_WME_GETAC(m0); 2817 which = rsu_wme_ac_xfer_map[prio]; 2818 hasqos = 1; 2819 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 2820 } else { 2821 /* Non-QoS TID */ 2822 /* XXX TODO: tid=0 for non-qos TID? */ 2823 which = rsu_wme_ac_xfer_map[WME_AC_BE]; 2824 hasqos = 0; 2825 prio = 0; 2826 qos = 0; 2827 } 2828 2829 qid = rsu_ac2qid[prio]; 2830 #if 0 2831 switch (type) { 2832 case IEEE80211_FC0_TYPE_CTL: 2833 case IEEE80211_FC0_TYPE_MGT: 2834 which = rsu_wme_ac_xfer_map[WME_AC_VO]; 2835 break; 2836 default: 2837 which = rsu_wme_ac_xfer_map[M_WME_GETAC(m0)]; 2838 break; 2839 } 2840 hasqos = 0; 2841 #endif 2842 2843 RSU_DPRINTF(sc, RSU_DEBUG_TX, "%s: pri=%d, which=%d, hasqos=%d\n", 2844 __func__, 2845 prio, 2846 which, 2847 hasqos); 2848 2849 /* Fill Tx descriptor. */ 2850 txd = (struct r92s_tx_desc *)data->buf; 2851 memset(txd, 0, sizeof(*txd)); 2852 2853 txd->txdw0 |= htole32( 2854 SM(R92S_TXDW0_PKTLEN, m0->m_pkthdr.len) | 2855 SM(R92S_TXDW0_OFFSET, sizeof(*txd)) | 2856 R92S_TXDW0_OWN | R92S_TXDW0_FSG | R92S_TXDW0_LSG); 2857 2858 /* TODO: correct macid here? It should be in the node */ 2859 txd->txdw1 |= htole32( 2860 SM(R92S_TXDW1_MACID, R92S_MACID_BSS) | SM(R92S_TXDW1_QSEL, qid)); 2861 2862 if (!hasqos) 2863 txd->txdw1 |= htole32(R92S_TXDW1_NONQOS); 2864 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWENCRYPT)) { 2865 switch (k->wk_cipher->ic_cipher) { 2866 case IEEE80211_CIPHER_WEP: 2867 cipher = R92S_TXDW1_CIPHER_WEP; 2868 break; 2869 case IEEE80211_CIPHER_TKIP: 2870 cipher = R92S_TXDW1_CIPHER_TKIP; 2871 break; 2872 case IEEE80211_CIPHER_AES_CCM: 2873 cipher = R92S_TXDW1_CIPHER_AES; 2874 break; 2875 default: 2876 cipher = R92S_TXDW1_CIPHER_NONE; 2877 } 2878 txd->txdw1 |= htole32( 2879 SM(R92S_TXDW1_CIPHER, cipher) | 2880 SM(R92S_TXDW1_KEYIDX, k->wk_keyix)); 2881 } 2882 2883 /* 2884 * Note: no need to set TXDW2_AGGEN/TXDW2_BK to mark 2885 * A-MPDU and non-AMPDU candidates; the firmware will 2886 * handle this for us. 2887 */ 2888 2889 if (ismcast) 2890 txd->txdw2 |= htole32(R92S_TXDW2_BMCAST); 2891 2892 if (!ismcast && (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 2893 IEEE80211_QOS_ACKPOLICY_NOACK)) { 2894 txd->txdw2 |= htole32(R92S_TXDW2_RTY_LMT_ENA); 2895 txd->txdw2 |= htole32(SM(R92S_TXDW2_RTY_LMT, tp->maxretry)); 2896 } 2897 2898 /* Force mgmt / mcast / ucast rate if needed. */ 2899 if (rate != 0) { 2900 /* Data rate fallback limit (max). */ 2901 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE_FB_LMT, 0x1f)); 2902 txd->txdw5 |= htole32(SM(R92S_TXDW5_DATARATE, ridx)); 2903 txd->txdw4 |= htole32(R92S_TXDW4_DRVRATE); 2904 } 2905 2906 /* 2907 * Pass in prio here, NOT the sequence number. 2908 * 2909 * The hardware is in theory incrementing sequence numbers 2910 * for us, but I haven't yet figured out exactly when/how 2911 * it's supposed to work. 2912 */ 2913 txd->txdw3 |= htole32(SM(R92S_TXDW3_SEQ, prio)); 2914 2915 if (ieee80211_radiotap_active_vap(vap)) { 2916 struct rsu_tx_radiotap_header *tap = &sc->sc_txtap; 2917 2918 tap->wt_flags = 0; 2919 ieee80211_radiotap_tx(vap, m0); 2920 } 2921 2922 xferlen = sizeof(*txd) + m0->m_pkthdr.len; 2923 KASSERT(xferlen <= RSU_TXBUFSZ, ("%s: invalid length", __func__)); 2924 m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&txd[1]); 2925 2926 data->buflen = xferlen; 2927 data->ni = ni; 2928 data->m = m0; 2929 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 2930 2931 /* start transfer, if any */ 2932 usbd_transfer_start(sc->sc_xfer[which]); 2933 return (0); 2934 } 2935 2936 static int 2937 rsu_transmit(struct ieee80211com *ic, struct mbuf *m) 2938 { 2939 struct rsu_softc *sc = ic->ic_softc; 2940 int error; 2941 2942 RSU_LOCK(sc); 2943 if (!sc->sc_running) { 2944 RSU_UNLOCK(sc); 2945 return (ENXIO); 2946 } 2947 2948 /* 2949 * XXX TODO: ensure that we treat 'm' as a list of frames 2950 * to transmit! 2951 */ 2952 error = mbufq_enqueue(&sc->sc_snd, m); 2953 if (error) { 2954 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2955 "%s: mbufq_enable: failed (%d)\n", 2956 __func__, 2957 error); 2958 RSU_UNLOCK(sc); 2959 return (error); 2960 } 2961 RSU_UNLOCK(sc); 2962 2963 /* This kicks the TX taskqueue */ 2964 rsu_start(sc); 2965 2966 return (0); 2967 } 2968 2969 static void 2970 rsu_drain_mbufq(struct rsu_softc *sc) 2971 { 2972 struct mbuf *m; 2973 struct ieee80211_node *ni; 2974 2975 RSU_ASSERT_LOCKED(sc); 2976 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2977 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2978 m->m_pkthdr.rcvif = NULL; 2979 ieee80211_free_node(ni); 2980 m_freem(m); 2981 } 2982 } 2983 2984 static void 2985 _rsu_start(struct rsu_softc *sc) 2986 { 2987 struct ieee80211_node *ni; 2988 struct rsu_data *bf; 2989 struct mbuf *m; 2990 2991 RSU_ASSERT_LOCKED(sc); 2992 2993 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2994 bf = rsu_getbuf(sc); 2995 if (bf == NULL) { 2996 RSU_DPRINTF(sc, RSU_DEBUG_TX, 2997 "%s: failed to get buffer\n", __func__); 2998 mbufq_prepend(&sc->sc_snd, m); 2999 break; 3000 } 3001 3002 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3003 m->m_pkthdr.rcvif = NULL; 3004 3005 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3006 RSU_DPRINTF(sc, RSU_DEBUG_TX, 3007 "%s: failed to transmit\n", __func__); 3008 if_inc_counter(ni->ni_vap->iv_ifp, 3009 IFCOUNTER_OERRORS, 1); 3010 rsu_freebuf(sc, bf); 3011 ieee80211_free_node(ni); 3012 m_freem(m); 3013 break; 3014 } 3015 } 3016 } 3017 3018 static void 3019 rsu_start(struct rsu_softc *sc) 3020 { 3021 3022 taskqueue_enqueue(taskqueue_thread, &sc->tx_task); 3023 } 3024 3025 static int 3026 rsu_ioctl_net(struct ieee80211com *ic, u_long cmd, void *data) 3027 { 3028 struct rsu_softc *sc = ic->ic_softc; 3029 struct ifreq *ifr = (struct ifreq *)data; 3030 int error; 3031 3032 error = 0; 3033 switch (cmd) { 3034 case SIOCSIFCAP: 3035 { 3036 struct ieee80211vap *vap; 3037 int rxmask; 3038 3039 rxmask = ifr->ifr_reqcap & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3040 3041 RSU_LOCK(sc); 3042 /* Both RXCSUM bits must be set (or unset). */ 3043 if (sc->sc_rx_checksum_enable && 3044 rxmask != (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) { 3045 rxmask = 0; 3046 sc->sc_rx_checksum_enable = 0; 3047 rsu_rxfilter_set(sc, R92S_RCR_TCP_OFFLD_EN, 0); 3048 } else if (!sc->sc_rx_checksum_enable && rxmask != 0) { 3049 rxmask = IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6; 3050 sc->sc_rx_checksum_enable = 1; 3051 rsu_rxfilter_set(sc, 0, R92S_RCR_TCP_OFFLD_EN); 3052 } else { 3053 /* Nothing to do. */ 3054 RSU_UNLOCK(sc); 3055 break; 3056 } 3057 RSU_UNLOCK(sc); 3058 3059 IEEE80211_LOCK(ic); /* XXX */ 3060 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { 3061 if_t ifp = vap->iv_ifp; 3062 3063 if_setcapenablebit(ifp, 0, 3064 IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); 3065 if_setcapenablebit(ifp, rxmask, 0); 3066 } 3067 IEEE80211_UNLOCK(ic); 3068 break; 3069 } 3070 default: 3071 error = ENOTTY; /* for net80211 */ 3072 break; 3073 } 3074 3075 return (error); 3076 } 3077 3078 static void 3079 rsu_parent(struct ieee80211com *ic) 3080 { 3081 struct rsu_softc *sc = ic->ic_softc; 3082 3083 if (ic->ic_nrunning > 0) { 3084 if (rsu_init(sc) == 0) 3085 ieee80211_start_all(ic); 3086 else { 3087 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3088 if (vap != NULL) 3089 ieee80211_stop(vap); 3090 } 3091 } else 3092 rsu_stop(sc); 3093 } 3094 3095 /* 3096 * Power on sequence for A-cut adapters. 3097 */ 3098 static void 3099 rsu_power_on_acut(struct rsu_softc *sc) 3100 { 3101 uint32_t reg; 3102 3103 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3104 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3105 3106 /* Enable AFE macro block's bandgap and Mbias. */ 3107 rsu_write_1(sc, R92S_AFE_MISC, 3108 rsu_read_1(sc, R92S_AFE_MISC) | 3109 R92S_AFE_MISC_BGEN | R92S_AFE_MISC_MBEN); 3110 /* Enable LDOA15 block. */ 3111 rsu_write_1(sc, R92S_LDOA15_CTRL, 3112 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3113 3114 rsu_write_1(sc, R92S_SPS1_CTRL, 3115 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_LDEN); 3116 rsu_ms_delay(sc, 2000); 3117 /* Enable switch regulator block. */ 3118 rsu_write_1(sc, R92S_SPS1_CTRL, 3119 rsu_read_1(sc, R92S_SPS1_CTRL) | R92S_SPS1_SWEN); 3120 3121 rsu_write_4(sc, R92S_SPS1_CTRL, 0x00a7b267); 3122 3123 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3124 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3125 3126 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3127 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3128 3129 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3130 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x90); 3131 3132 /* Enable AFE clock. */ 3133 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3134 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3135 /* Enable AFE PLL macro block. */ 3136 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 3137 rsu_read_1(sc, R92S_AFE_PLL_CTRL) | 0x11); 3138 /* Attach AFE PLL to MACTOP/BB. */ 3139 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3140 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3141 3142 /* Switch to 40MHz clock instead of 80MHz. */ 3143 rsu_write_2(sc, R92S_SYS_CLKR, 3144 rsu_read_2(sc, R92S_SYS_CLKR) & ~R92S_SYS_CLKSEL); 3145 3146 /* Enable MAC clock. */ 3147 rsu_write_2(sc, R92S_SYS_CLKR, 3148 rsu_read_2(sc, R92S_SYS_CLKR) | 3149 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3150 3151 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3152 3153 /* Enable digital core and IOREG R/W. */ 3154 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3155 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3156 3157 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3158 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3159 3160 /* Switch the control path to firmware. */ 3161 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3162 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3163 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3164 3165 rsu_write_2(sc, R92S_CR, 0x37fc); 3166 3167 /* Fix USB RX FIFO issue. */ 3168 rsu_write_1(sc, 0xfe5c, 3169 rsu_read_1(sc, 0xfe5c) | 0x80); 3170 rsu_write_1(sc, 0x00ab, 3171 rsu_read_1(sc, 0x00ab) | 0xc0); 3172 3173 rsu_write_1(sc, R92S_SYS_CLKR, 3174 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3175 } 3176 3177 /* 3178 * Power on sequence for B-cut and C-cut adapters. 3179 */ 3180 static void 3181 rsu_power_on_bcut(struct rsu_softc *sc) 3182 { 3183 uint32_t reg; 3184 int ntries; 3185 3186 /* Prevent eFuse leakage. */ 3187 rsu_write_1(sc, 0x37, 0xb0); 3188 rsu_ms_delay(sc, 10); 3189 rsu_write_1(sc, 0x37, 0x30); 3190 3191 /* Switch the control path to hardware. */ 3192 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3193 if (reg & R92S_FWHW_SEL) { 3194 rsu_write_2(sc, R92S_SYS_CLKR, 3195 reg & ~(R92S_SWHW_SEL | R92S_FWHW_SEL)); 3196 } 3197 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3198 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) & ~0x8c); 3199 rsu_ms_delay(sc, 1); 3200 3201 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x53); 3202 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x57); 3203 3204 reg = rsu_read_1(sc, R92S_AFE_MISC); 3205 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN); 3206 rsu_write_1(sc, R92S_AFE_MISC, reg | R92S_AFE_MISC_BGEN | 3207 R92S_AFE_MISC_MBEN | R92S_AFE_MISC_I32_EN); 3208 3209 /* Enable PLL. */ 3210 rsu_write_1(sc, R92S_LDOA15_CTRL, 3211 rsu_read_1(sc, R92S_LDOA15_CTRL) | R92S_LDA15_EN); 3212 3213 rsu_write_1(sc, R92S_LDOV12D_CTRL, 3214 rsu_read_1(sc, R92S_LDOV12D_CTRL) | R92S_LDV12_EN); 3215 3216 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3217 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) | 0x08); 3218 3219 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3220 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x20); 3221 3222 /* Support 64KB IMEM. */ 3223 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 3224 rsu_read_1(sc, R92S_SYS_ISO_CTRL + 1) & ~0x97); 3225 3226 /* Enable AFE clock. */ 3227 rsu_write_1(sc, R92S_AFE_XTAL_CTRL + 1, 3228 rsu_read_1(sc, R92S_AFE_XTAL_CTRL + 1) & ~0x04); 3229 /* Enable AFE PLL macro block. */ 3230 reg = rsu_read_1(sc, R92S_AFE_PLL_CTRL); 3231 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3232 rsu_ms_delay(sc, 1); 3233 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x51); 3234 rsu_ms_delay(sc, 1); 3235 rsu_write_1(sc, R92S_AFE_PLL_CTRL, reg | 0x11); 3236 rsu_ms_delay(sc, 1); 3237 3238 /* Attach AFE PLL to MACTOP/BB. */ 3239 rsu_write_1(sc, R92S_SYS_ISO_CTRL, 3240 rsu_read_1(sc, R92S_SYS_ISO_CTRL) & ~0x11); 3241 3242 /* Switch to 40MHz clock. */ 3243 rsu_write_1(sc, R92S_SYS_CLKR, 0x00); 3244 /* Disable CPU clock and 80MHz SSC. */ 3245 rsu_write_1(sc, R92S_SYS_CLKR, 3246 rsu_read_1(sc, R92S_SYS_CLKR) | 0xa0); 3247 /* Enable MAC clock. */ 3248 rsu_write_2(sc, R92S_SYS_CLKR, 3249 rsu_read_2(sc, R92S_SYS_CLKR) | 3250 R92S_MAC_CLK_EN | R92S_SYS_CLK_EN); 3251 3252 rsu_write_1(sc, R92S_PMC_FSM, 0x02); 3253 3254 /* Enable digital core and IOREG R/W. */ 3255 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3256 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x08); 3257 3258 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 3259 rsu_read_1(sc, R92S_SYS_FUNC_EN + 1) | 0x80); 3260 3261 /* Switch the control path to firmware. */ 3262 reg = rsu_read_2(sc, R92S_SYS_CLKR); 3263 reg = (reg & ~R92S_SWHW_SEL) | R92S_FWHW_SEL; 3264 rsu_write_2(sc, R92S_SYS_CLKR, reg); 3265 3266 rsu_write_2(sc, R92S_CR, 0x37fc); 3267 3268 /* Fix USB RX FIFO issue. */ 3269 rsu_write_1(sc, 0xfe5c, 3270 rsu_read_1(sc, 0xfe5c) | 0x80); 3271 3272 rsu_write_1(sc, R92S_SYS_CLKR, 3273 rsu_read_1(sc, R92S_SYS_CLKR) & ~R92S_SYS_CPU_CLKSEL); 3274 3275 rsu_write_1(sc, 0xfe1c, 0x80); 3276 3277 /* Make sure TxDMA is ready to download firmware. */ 3278 for (ntries = 0; ntries < 20; ntries++) { 3279 reg = rsu_read_1(sc, R92S_TCR); 3280 if ((reg & (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) == 3281 (R92S_TCR_IMEM_CHK_RPT | R92S_TCR_EMEM_CHK_RPT)) 3282 break; 3283 rsu_ms_delay(sc, 1); 3284 } 3285 if (ntries == 20) { 3286 RSU_DPRINTF(sc, RSU_DEBUG_RESET | RSU_DEBUG_TX, 3287 "%s: TxDMA is not ready\n", 3288 __func__); 3289 /* Reset TxDMA. */ 3290 reg = rsu_read_1(sc, R92S_CR); 3291 rsu_write_1(sc, R92S_CR, reg & ~R92S_CR_TXDMA_EN); 3292 rsu_ms_delay(sc, 1); 3293 rsu_write_1(sc, R92S_CR, reg | R92S_CR_TXDMA_EN); 3294 } 3295 } 3296 3297 static void 3298 rsu_power_off(struct rsu_softc *sc) 3299 { 3300 /* Turn RF off. */ 3301 rsu_write_1(sc, R92S_RF_CTRL, 0x00); 3302 rsu_ms_delay(sc, 5); 3303 3304 /* Turn MAC off. */ 3305 /* Switch control path. */ 3306 rsu_write_1(sc, R92S_SYS_CLKR + 1, 0x38); 3307 /* Reset MACTOP. */ 3308 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x70); 3309 rsu_write_1(sc, R92S_PMC_FSM, 0x06); 3310 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 0, 0xf9); 3311 rsu_write_1(sc, R92S_SYS_ISO_CTRL + 1, 0xe8); 3312 3313 /* Disable AFE PLL. */ 3314 rsu_write_1(sc, R92S_AFE_PLL_CTRL, 0x00); 3315 /* Disable A15V. */ 3316 rsu_write_1(sc, R92S_LDOA15_CTRL, 0x54); 3317 /* Disable eFuse 1.2V. */ 3318 rsu_write_1(sc, R92S_SYS_FUNC_EN + 1, 0x50); 3319 rsu_write_1(sc, R92S_LDOV12D_CTRL, 0x24); 3320 /* Enable AFE macro block's bandgap and Mbias. */ 3321 rsu_write_1(sc, R92S_AFE_MISC, 0x30); 3322 /* Disable 1.6V LDO. */ 3323 rsu_write_1(sc, R92S_SPS0_CTRL + 0, 0x56); 3324 rsu_write_1(sc, R92S_SPS0_CTRL + 1, 0x43); 3325 3326 /* Firmware - tell it to switch things off */ 3327 (void) rsu_set_fw_power_state(sc, RSU_PWR_OFF); 3328 } 3329 3330 static int 3331 rsu_fw_loadsection(struct rsu_softc *sc, const uint8_t *buf, int len) 3332 { 3333 const uint8_t which = rsu_wme_ac_xfer_map[WME_AC_VO]; 3334 struct rsu_data *data; 3335 struct r92s_tx_desc *txd; 3336 int mlen; 3337 3338 while (len > 0) { 3339 data = rsu_getbuf(sc); 3340 if (data == NULL) 3341 return (ENOMEM); 3342 txd = (struct r92s_tx_desc *)data->buf; 3343 memset(txd, 0, sizeof(*txd)); 3344 if (len <= RSU_TXBUFSZ - sizeof(*txd)) { 3345 /* Last chunk. */ 3346 txd->txdw0 |= htole32(R92S_TXDW0_LINIP); 3347 mlen = len; 3348 } else 3349 mlen = RSU_TXBUFSZ - sizeof(*txd); 3350 txd->txdw0 |= htole32(SM(R92S_TXDW0_PKTLEN, mlen)); 3351 memcpy(&txd[1], buf, mlen); 3352 data->buflen = sizeof(*txd) + mlen; 3353 RSU_DPRINTF(sc, RSU_DEBUG_TX | RSU_DEBUG_FW | RSU_DEBUG_RESET, 3354 "%s: starting transfer %p\n", 3355 __func__, data); 3356 STAILQ_INSERT_TAIL(&sc->sc_tx_pending[which], data, next); 3357 buf += mlen; 3358 len -= mlen; 3359 } 3360 usbd_transfer_start(sc->sc_xfer[which]); 3361 return (0); 3362 } 3363 3364 CTASSERT(sizeof(size_t) >= sizeof(uint32_t)); 3365 3366 static int 3367 rsu_load_firmware(struct rsu_softc *sc) 3368 { 3369 const struct r92s_fw_hdr *hdr; 3370 struct r92s_fw_priv dmem; 3371 struct ieee80211com *ic = &sc->sc_ic; 3372 const uint8_t *imem, *emem; 3373 uint32_t imemsz, ememsz; 3374 const struct firmware *fw; 3375 size_t size; 3376 uint32_t reg; 3377 int ntries, error; 3378 3379 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY) { 3380 RSU_DPRINTF(sc, RSU_DEBUG_ANY, 3381 "%s: Firmware already loaded\n", 3382 __func__); 3383 return (0); 3384 } 3385 3386 RSU_UNLOCK(sc); 3387 /* Read firmware image from the filesystem. */ 3388 if ((fw = firmware_get("rsu-rtl8712fw")) == NULL) { 3389 device_printf(sc->sc_dev, 3390 "%s: failed load firmware of file rsu-rtl8712fw\n", 3391 __func__); 3392 RSU_LOCK(sc); 3393 return (ENXIO); 3394 } 3395 RSU_LOCK(sc); 3396 size = fw->datasize; 3397 if (size < sizeof(*hdr)) { 3398 device_printf(sc->sc_dev, "firmware too short\n"); 3399 error = EINVAL; 3400 goto fail; 3401 } 3402 hdr = (const struct r92s_fw_hdr *)fw->data; 3403 if (hdr->signature != htole16(0x8712) && 3404 hdr->signature != htole16(0x8192)) { 3405 device_printf(sc->sc_dev, 3406 "invalid firmware signature 0x%x\n", 3407 le16toh(hdr->signature)); 3408 error = EINVAL; 3409 goto fail; 3410 } 3411 RSU_DPRINTF(sc, RSU_DEBUG_FW, "FW V%d %02x-%02x %02x:%02x\n", 3412 le16toh(hdr->version), hdr->month, hdr->day, hdr->hour, 3413 hdr->minute); 3414 3415 /* Make sure that driver and firmware are in sync. */ 3416 if (hdr->privsz != htole32(sizeof(dmem))) { 3417 device_printf(sc->sc_dev, "unsupported firmware image\n"); 3418 error = EINVAL; 3419 goto fail; 3420 } 3421 /* Get FW sections sizes. */ 3422 imemsz = le32toh(hdr->imemsz); 3423 ememsz = le32toh(hdr->sramsz); 3424 /* Check that all FW sections fit in image. */ 3425 if (imemsz > (size_t)(size - sizeof(*hdr)) || 3426 ememsz > (size_t)(size - sizeof(*hdr) - imemsz)) { 3427 device_printf(sc->sc_dev, "firmware too short\n"); 3428 error = EINVAL; 3429 goto fail; 3430 } 3431 imem = (const uint8_t *)&hdr[1]; 3432 emem = imem + imemsz; 3433 3434 /* Load IMEM section. */ 3435 error = rsu_fw_loadsection(sc, imem, imemsz); 3436 if (error != 0) { 3437 device_printf(sc->sc_dev, 3438 "could not load firmware section %s\n", "IMEM"); 3439 goto fail; 3440 } 3441 /* Wait for load to complete. */ 3442 for (ntries = 0; ntries != 50; ntries++) { 3443 rsu_ms_delay(sc, 10); 3444 reg = rsu_read_1(sc, R92S_TCR); 3445 if (reg & R92S_TCR_IMEM_CODE_DONE) 3446 break; 3447 } 3448 if (ntries == 50) { 3449 device_printf(sc->sc_dev, "timeout waiting for IMEM transfer\n"); 3450 error = ETIMEDOUT; 3451 goto fail; 3452 } 3453 /* Load EMEM section. */ 3454 error = rsu_fw_loadsection(sc, emem, ememsz); 3455 if (error != 0) { 3456 device_printf(sc->sc_dev, 3457 "could not load firmware section %s\n", "EMEM"); 3458 goto fail; 3459 } 3460 /* Wait for load to complete. */ 3461 for (ntries = 0; ntries != 50; ntries++) { 3462 rsu_ms_delay(sc, 10); 3463 reg = rsu_read_2(sc, R92S_TCR); 3464 if (reg & R92S_TCR_EMEM_CODE_DONE) 3465 break; 3466 } 3467 if (ntries == 50) { 3468 device_printf(sc->sc_dev, "timeout waiting for EMEM transfer\n"); 3469 error = ETIMEDOUT; 3470 goto fail; 3471 } 3472 /* Enable CPU. */ 3473 rsu_write_1(sc, R92S_SYS_CLKR, 3474 rsu_read_1(sc, R92S_SYS_CLKR) | R92S_SYS_CPU_CLKSEL); 3475 if (!(rsu_read_1(sc, R92S_SYS_CLKR) & R92S_SYS_CPU_CLKSEL)) { 3476 device_printf(sc->sc_dev, "could not enable system clock\n"); 3477 error = EIO; 3478 goto fail; 3479 } 3480 rsu_write_2(sc, R92S_SYS_FUNC_EN, 3481 rsu_read_2(sc, R92S_SYS_FUNC_EN) | R92S_FEN_CPUEN); 3482 if (!(rsu_read_2(sc, R92S_SYS_FUNC_EN) & R92S_FEN_CPUEN)) { 3483 device_printf(sc->sc_dev, 3484 "could not enable microcontroller\n"); 3485 error = EIO; 3486 goto fail; 3487 } 3488 /* Wait for CPU to initialize. */ 3489 for (ntries = 0; ntries < 100; ntries++) { 3490 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_IMEM_RDY) 3491 break; 3492 rsu_ms_delay(sc, 1); 3493 } 3494 if (ntries == 100) { 3495 device_printf(sc->sc_dev, 3496 "timeout waiting for microcontroller\n"); 3497 error = ETIMEDOUT; 3498 goto fail; 3499 } 3500 3501 /* Update DMEM section before loading. */ 3502 memset(&dmem, 0, sizeof(dmem)); 3503 dmem.hci_sel = R92S_HCI_SEL_USB | R92S_HCI_SEL_8172; 3504 dmem.nendpoints = sc->sc_nendpoints; 3505 dmem.chip_version = sc->cut; 3506 dmem.rf_config = sc->sc_rftype; 3507 dmem.vcs_type = R92S_VCS_TYPE_AUTO; 3508 dmem.vcs_mode = R92S_VCS_MODE_RTS_CTS; 3509 dmem.turbo_mode = 0; 3510 dmem.bw40_en = !! (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40); 3511 /* net80211 handles AMSDUs just fine */ 3512 dmem.amsdu2ampdu_en = 0; 3513 dmem.ampdu_en = !! (sc->sc_ht); 3514 dmem.agg_offload = !! (sc->sc_ht); 3515 dmem.qos_en = 1; 3516 dmem.ps_offload = 1; 3517 dmem.lowpower_mode = 1; /* XXX TODO: configurable? */ 3518 /* Load DMEM section. */ 3519 error = rsu_fw_loadsection(sc, (uint8_t *)&dmem, sizeof(dmem)); 3520 if (error != 0) { 3521 device_printf(sc->sc_dev, 3522 "could not load firmware section %s\n", "DMEM"); 3523 goto fail; 3524 } 3525 /* Wait for load to complete. */ 3526 for (ntries = 0; ntries < 100; ntries++) { 3527 if (rsu_read_1(sc, R92S_TCR) & R92S_TCR_DMEM_CODE_DONE) 3528 break; 3529 rsu_ms_delay(sc, 1); 3530 } 3531 if (ntries == 100) { 3532 device_printf(sc->sc_dev, "timeout waiting for %s transfer\n", 3533 "DMEM"); 3534 error = ETIMEDOUT; 3535 goto fail; 3536 } 3537 /* Wait for firmware readiness. */ 3538 for (ntries = 0; ntries < 60; ntries++) { 3539 if (!(rsu_read_1(sc, R92S_TCR) & R92S_TCR_FWRDY)) 3540 break; 3541 rsu_ms_delay(sc, 1); 3542 } 3543 if (ntries == 60) { 3544 device_printf(sc->sc_dev, 3545 "timeout waiting for firmware readiness\n"); 3546 error = ETIMEDOUT; 3547 goto fail; 3548 } 3549 fail: 3550 firmware_put(fw, FIRMWARE_UNLOAD); 3551 return (error); 3552 } 3553 3554 static int 3555 rsu_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3556 const struct ieee80211_bpf_params *params) 3557 { 3558 struct ieee80211com *ic = ni->ni_ic; 3559 struct rsu_softc *sc = ic->ic_softc; 3560 struct rsu_data *bf; 3561 3562 /* prevent management frames from being sent if we're not ready */ 3563 if (!sc->sc_running) { 3564 m_freem(m); 3565 return (ENETDOWN); 3566 } 3567 RSU_LOCK(sc); 3568 bf = rsu_getbuf(sc); 3569 if (bf == NULL) { 3570 m_freem(m); 3571 RSU_UNLOCK(sc); 3572 return (ENOBUFS); 3573 } 3574 if (rsu_tx_start(sc, ni, m, bf) != 0) { 3575 m_freem(m); 3576 rsu_freebuf(sc, bf); 3577 RSU_UNLOCK(sc); 3578 return (EIO); 3579 } 3580 RSU_UNLOCK(sc); 3581 3582 return (0); 3583 } 3584 3585 static void 3586 rsu_rxfilter_init(struct rsu_softc *sc) 3587 { 3588 uint32_t reg; 3589 3590 RSU_ASSERT_LOCKED(sc); 3591 3592 /* Setup multicast filter. */ 3593 rsu_set_multi(sc); 3594 3595 /* Adjust Rx filter. */ 3596 reg = rsu_read_4(sc, R92S_RCR); 3597 reg &= ~R92S_RCR_AICV; 3598 reg |= R92S_RCR_APP_PHYSTS; 3599 if (sc->sc_rx_checksum_enable) 3600 reg |= R92S_RCR_TCP_OFFLD_EN; 3601 rsu_write_4(sc, R92S_RCR, reg); 3602 3603 /* Update dynamic Rx filter parts. */ 3604 rsu_rxfilter_refresh(sc); 3605 } 3606 3607 static void 3608 rsu_rxfilter_set(struct rsu_softc *sc, uint32_t clear, uint32_t set) 3609 { 3610 /* NB: firmware can touch this register too. */ 3611 rsu_write_4(sc, R92S_RCR, 3612 (rsu_read_4(sc, R92S_RCR) & ~clear) | set); 3613 } 3614 3615 static void 3616 rsu_rxfilter_refresh(struct rsu_softc *sc) 3617 { 3618 struct ieee80211com *ic = &sc->sc_ic; 3619 uint32_t mask_all, mask_min; 3620 3621 RSU_ASSERT_LOCKED(sc); 3622 3623 /* NB: RCR_AMF / RXFLTMAP_MGT are used by firmware. */ 3624 mask_all = R92S_RCR_ACF | R92S_RCR_AAP; 3625 mask_min = R92S_RCR_APM; 3626 if (sc->sc_vap_is_running) 3627 mask_min |= R92S_RCR_CBSSID; 3628 else 3629 mask_all |= R92S_RCR_ADF; 3630 3631 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3632 uint16_t rxfltmap; 3633 if (sc->sc_vap_is_running) 3634 rxfltmap = 0; 3635 else 3636 rxfltmap = R92S_RXFLTMAP_MGT_DEF; 3637 rsu_write_2(sc, R92S_RXFLTMAP_MGT, rxfltmap); 3638 } 3639 3640 if (ic->ic_promisc == 0 && ic->ic_opmode != IEEE80211_M_MONITOR) 3641 rsu_rxfilter_set(sc, mask_all, mask_min); 3642 else 3643 rsu_rxfilter_set(sc, mask_min, mask_all); 3644 } 3645 3646 static int 3647 rsu_init(struct rsu_softc *sc) 3648 { 3649 struct ieee80211com *ic = &sc->sc_ic; 3650 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3651 uint8_t macaddr[IEEE80211_ADDR_LEN]; 3652 int error; 3653 int i; 3654 3655 RSU_LOCK(sc); 3656 3657 if (sc->sc_running) { 3658 RSU_UNLOCK(sc); 3659 return (0); 3660 } 3661 3662 /* Ensure the mbuf queue is drained */ 3663 rsu_drain_mbufq(sc); 3664 3665 /* Reset power management state. */ 3666 rsu_write_1(sc, R92S_USB_HRPWM, 0); 3667 3668 /* Power on adapter. */ 3669 if (sc->cut == 1) 3670 rsu_power_on_acut(sc); 3671 else 3672 rsu_power_on_bcut(sc); 3673 3674 /* Load firmware. */ 3675 error = rsu_load_firmware(sc); 3676 if (error != 0) 3677 goto fail; 3678 3679 rsu_write_4(sc, R92S_CR, 3680 rsu_read_4(sc, R92S_CR) & ~0xff000000); 3681 3682 /* Use 128 bytes pages. */ 3683 rsu_write_1(sc, 0x00b5, 3684 rsu_read_1(sc, 0x00b5) | 0x01); 3685 /* Enable USB Rx aggregation. */ 3686 rsu_write_1(sc, 0x00bd, 3687 rsu_read_1(sc, 0x00bd) | 0x80); 3688 /* Set USB Rx aggregation threshold. */ 3689 rsu_write_1(sc, 0x00d9, 0x01); 3690 /* Set USB Rx aggregation timeout (1.7ms/4). */ 3691 rsu_write_1(sc, 0xfe5b, 0x04); 3692 /* Fix USB Rx FIFO issue. */ 3693 rsu_write_1(sc, 0xfe5c, 3694 rsu_read_1(sc, 0xfe5c) | 0x80); 3695 3696 /* Set MAC address. */ 3697 IEEE80211_ADDR_COPY(macaddr, vap ? vap->iv_myaddr : ic->ic_macaddr); 3698 rsu_write_region_1(sc, R92S_MACID, macaddr, IEEE80211_ADDR_LEN); 3699 3700 /* It really takes 1.5 seconds for the firmware to boot: */ 3701 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(2000)); 3702 3703 RSU_DPRINTF(sc, RSU_DEBUG_RESET, "%s: setting MAC address to %s\n", 3704 __func__, 3705 ether_sprintf(macaddr)); 3706 error = rsu_fw_cmd(sc, R92S_CMD_SET_MAC_ADDRESS, macaddr, 3707 IEEE80211_ADDR_LEN); 3708 if (error != 0) { 3709 device_printf(sc->sc_dev, "could not set MAC address\n"); 3710 goto fail; 3711 } 3712 3713 /* Initialize Rx filter. */ 3714 rsu_rxfilter_init(sc); 3715 3716 /* Set PS mode fully active */ 3717 error = rsu_set_fw_power_state(sc, RSU_PWR_ACTIVE); 3718 if (error != 0) { 3719 device_printf(sc->sc_dev, "could not set PS mode\n"); 3720 goto fail; 3721 } 3722 3723 /* Install static keys (if any). */ 3724 error = rsu_reinit_static_keys(sc); 3725 if (error != 0) 3726 goto fail; 3727 3728 sc->sc_extra_scan = 0; 3729 usbd_transfer_start(sc->sc_xfer[RSU_BULK_RX]); 3730 3731 /* We're ready to go. */ 3732 sc->sc_running = 1; 3733 RSU_UNLOCK(sc); 3734 3735 return (0); 3736 fail: 3737 /* Need to stop all failed transfers, if any */ 3738 for (i = 0; i != RSU_N_TRANSFER; i++) 3739 usbd_transfer_stop(sc->sc_xfer[i]); 3740 RSU_UNLOCK(sc); 3741 3742 return (error); 3743 } 3744 3745 static void 3746 rsu_stop(struct rsu_softc *sc) 3747 { 3748 int i; 3749 3750 RSU_LOCK(sc); 3751 if (!sc->sc_running) { 3752 RSU_UNLOCK(sc); 3753 return; 3754 } 3755 3756 sc->sc_running = 0; 3757 sc->sc_vap_is_running = 0; 3758 sc->sc_calibrating = 0; 3759 taskqueue_cancel_timeout(taskqueue_thread, &sc->calib_task, NULL); 3760 taskqueue_cancel(taskqueue_thread, &sc->tx_task, NULL); 3761 3762 /* Power off adapter. */ 3763 rsu_power_off(sc); 3764 3765 /* 3766 * CAM is not accessible after shutdown; 3767 * all entries are marked (by firmware?) as invalid. 3768 */ 3769 memset(sc->free_keys_bmap, 0, sizeof(sc->free_keys_bmap)); 3770 memset(sc->keys_bmap, 0, sizeof(sc->keys_bmap)); 3771 3772 for (i = 0; i < RSU_N_TRANSFER; i++) 3773 usbd_transfer_stop(sc->sc_xfer[i]); 3774 3775 /* Ensure the mbuf queue is drained */ 3776 rsu_drain_mbufq(sc); 3777 RSU_UNLOCK(sc); 3778 } 3779 3780 /* 3781 * Note: usb_pause_mtx() actually releases the mutex before calling pause(), 3782 * which breaks any kind of driver serialisation. 3783 */ 3784 static void 3785 rsu_ms_delay(struct rsu_softc *sc, int ms) 3786 { 3787 3788 //usb_pause_mtx(&sc->sc_mtx, hz / 1000); 3789 DELAY(ms * 1000); 3790 } 3791