if_rum.c revision 1.6.4.6
1 /* $OpenBSD: if_rum.c,v 1.40 2006/09/18 16:20:20 damien Exp $ */ 2 /* $NetBSD: if_rum.c,v 1.6.4.6 2007/06/25 09:25:04 itohy Exp $ */ 3 4 /*- 5 * Copyright (c) 2005, 2006 Damien Bergamini <damien.bergamini (at) free.fr> 6 * Copyright (c) 2006 Niall O'Higgins <niallo (at) openbsd.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 /*- 22 * Ralink Technology RT2501USB/RT2601USB chipset driver 23 * http://www.ralinktech.com/ 24 */ 25 26 #include <sys/cdefs.h> 27 __KERNEL_RCSID(0, "$NetBSD: if_rum.c,v 1.6.4.6 2007/06/25 09:25:04 itohy Exp $"); 28 29 #include "bpfilter.h" 30 31 #include <sys/param.h> 32 #include <sys/sockio.h> 33 #include <sys/sysctl.h> 34 #include <sys/mbuf.h> 35 #include <sys/kernel.h> 36 #include <sys/socket.h> 37 #include <sys/systm.h> 38 #include <sys/malloc.h> 39 #include <sys/conf.h> 40 #include <sys/device.h> 41 42 #include <machine/bus.h> 43 #include <machine/endian.h> 44 #include <machine/intr.h> 45 46 #if NBPFILTER > 0 47 #include <net/bpf.h> 48 #endif 49 #include <net/if.h> 50 #include <net/if_arp.h> 51 #include <net/if_dl.h> 52 #include <net/if_ether.h> 53 #include <net/if_media.h> 54 #include <net/if_types.h> 55 56 #include <netinet/in.h> 57 #include <netinet/in_systm.h> 58 #include <netinet/in_var.h> 59 #include <netinet/ip.h> 60 61 #include <net80211/ieee80211_netbsd.h> 62 #include <net80211/ieee80211_var.h> 63 #include <net80211/ieee80211_amrr.h> 64 #include <net80211/ieee80211_radiotap.h> 65 66 #include <dev/firmload.h> 67 68 #include <dev/usb/usb.h> 69 #include <dev/usb/usbdi.h> 70 #include <dev/usb/usbdi_util.h> 71 #include <dev/usb/usbdevs.h> 72 #include <dev/usb/usb_ethersubr.h> 73 74 #include <dev/usb/if_rumreg.h> 75 #include <dev/usb/if_rumvar.h> 76 77 #ifdef USB_DEBUG 78 #define RUM_DEBUG 79 #endif 80 81 #ifdef RUM_DEBUG 82 #define DPRINTF(x) do { if (rum_debug) logprintf x; } while (0) 83 #define DPRINTFN(n, x) do { if (rum_debug >= (n)) logprintf x; } while (0) 84 int rum_debug = 1; 85 #else 86 #define DPRINTF(x) 87 #define DPRINTFN(n, x) 88 #endif 89 90 /* various supported device vendors/products */ 91 static const struct usb_devno rum_devs[] = { 92 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM }, 93 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2 }, 94 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3 }, 95 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4 }, 96 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700 }, 97 { USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO }, 98 { USB_VENDOR_ASUSTEK, USB_PRODUCT_ASUSTEK_WL167G_2 }, 99 { USB_VENDOR_ASUSTEK, USB_PRODUCT_ASUSTEK_WL167G_3 }, 100 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A }, 101 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3 }, 102 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC }, 103 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR }, 104 { USB_VENDOR_CONCEPTRONIC, USB_PRODUCT_CONCEPTRONIC_C54RU2 }, 105 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F }, 106 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573 }, 107 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1 }, 108 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340 }, 109 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS }, 110 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS }, 111 { USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573 }, 112 { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573 }, 113 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB }, 114 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP }, 115 { USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_RT2573 }, 116 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP }, 117 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP }, 118 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573 }, 119 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2 }, 120 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3 }, 121 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4 }, 122 { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573 }, 123 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP }, 124 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2 }, 125 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM }, 126 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573 }, 127 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2 }, 128 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573 }, 129 { USB_VENDOR_RALINK_2, USB_PRODUCT_RALINK_2_RT2573 }, 130 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671 }, 131 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2 }, 132 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172 }, 133 { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573 } 134 }; 135 136 Static int rum_attachhook(void *); 137 Static void rum_free_tx_list(struct rum_softc *); 138 Static void rum_free_rx_list(struct rum_softc *); 139 Static int rum_media_change(struct ifnet *); 140 Static void rum_next_scan(void *); 141 Static void rum_task(void *); 142 Static int rum_newstate(struct ieee80211com *, 143 enum ieee80211_state, int); 144 Static void rum_txeof(usbd_xfer_handle, usbd_private_handle, 145 usbd_status); 146 Static void rum_rxeof(usbd_xfer_handle, usbd_private_handle, 147 usbd_status); 148 #if NBPFILTER > 0 149 Static uint8_t rum_rxrate(struct rum_rx_desc *); 150 #endif 151 Static int rum_ack_rate(struct ieee80211com *, int); 152 Static uint16_t rum_txtime(int, int, uint32_t); 153 Static uint8_t rum_plcp_signal(int); 154 Static void rum_setup_tx_desc(struct rum_softc *, 155 struct rum_tx_desc *, uint32_t, uint16_t, int, 156 int); 157 Static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 158 struct ieee80211_node *); 159 Static int rum_tx_data(struct rum_softc *, struct mbuf *, 160 struct ieee80211_node *); 161 Static void rum_start(struct ifnet *); 162 Static void rum_watchdog(struct ifnet *); 163 Static int rum_ioctl(struct ifnet *, u_long, usb_ioctlarg_t); 164 Static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 165 int); 166 Static uint32_t rum_read(struct rum_softc *, uint16_t); 167 Static void rum_read_multi(struct rum_softc *, uint16_t, void *, 168 int); 169 Static void rum_write(struct rum_softc *, uint16_t, uint32_t); 170 Static void rum_write_multi(struct rum_softc *, uint16_t, void *, 171 size_t); 172 Static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 173 Static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 174 Static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 175 Static void rum_select_antenna(struct rum_softc *); 176 Static void rum_enable_mrr(struct rum_softc *); 177 Static void rum_set_txpreamble(struct rum_softc *); 178 Static void rum_set_basicrates(struct rum_softc *); 179 Static void rum_select_band(struct rum_softc *, 180 struct ieee80211_channel *); 181 Static void rum_set_chan(struct rum_softc *, 182 struct ieee80211_channel *); 183 Static void rum_enable_tsf_sync(struct rum_softc *); 184 Static void rum_update_slot(struct rum_softc *); 185 Static void rum_set_bssid(struct rum_softc *, const uint8_t *); 186 Static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 187 Static void rum_update_promisc(struct rum_softc *); 188 Static const char *rum_get_rf(int); 189 Static void rum_read_eeprom(struct rum_softc *); 190 Static int rum_bbp_init(struct rum_softc *); 191 Static int rum_init(struct ifnet *); 192 Static void rum_stop(struct ifnet *, int); 193 Static int rum_load_microcode(struct rum_softc *, const u_char *, 194 size_t); 195 Static int rum_prepare_beacon(struct rum_softc *); 196 Static void rum_amrr_start(struct rum_softc *, 197 struct ieee80211_node *); 198 Static void rum_amrr_timeout(void *); 199 Static void rum_amrr_update(usbd_xfer_handle, usbd_private_handle, 200 usbd_status status); 201 202 /* 203 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 204 */ 205 static const struct ieee80211_rateset rum_rateset_11a = 206 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 207 208 static const struct ieee80211_rateset rum_rateset_11b = 209 { 4, { 2, 4, 11, 22 } }; 210 211 static const struct ieee80211_rateset rum_rateset_11g = 212 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 213 214 static const struct { 215 uint32_t reg; 216 uint32_t val; 217 } rum_def_mac[] = { 218 RT2573_DEF_MAC 219 }; 220 221 static const struct { 222 uint8_t reg; 223 uint8_t val; 224 } rum_def_bbp[] = { 225 RT2573_DEF_BBP 226 }; 227 228 static const struct rfprog { 229 uint8_t chan; 230 uint32_t r1, r2, r3, r4; 231 } rum_rf5226[] = { 232 RT2573_RF5226 233 }, rum_rf5225[] = { 234 RT2573_RF5225 235 }; 236 237 USB_DECLARE_DRIVER(rum); 238 239 USB_MATCH(rum) 240 { 241 USB_MATCH_START(rum, uaa); 242 243 #ifndef USB_USE_IFATTACH 244 if (uaa->iface != NULL) 245 return UMATCH_NONE; 246 #endif /* USB_USE_IFATTACH */ 247 248 return (usb_lookup(rum_devs, uaa->vendor, uaa->product) != NULL) ? 249 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 250 } 251 252 Static int 253 rum_attachhook(void *xsc) 254 { 255 struct rum_softc *sc = xsc; 256 firmware_handle_t fwh; 257 const char *name = "rum-rt2573"; 258 u_char *ucode; 259 size_t size; 260 int error; 261 262 if ((error = firmware_open("rum", name, &fwh)) != 0) { 263 printf("%s: failed loadfirmware of file %s (error %d)\n", 264 USBDEVNAME(sc->sc_dev), name, error); 265 return error; 266 } 267 size = firmware_get_size(fwh); 268 ucode = firmware_malloc(size); 269 if (ucode == NULL) { 270 printf("%s: failed to allocate firmware memory\n", 271 USBDEVNAME(sc->sc_dev)); 272 firmware_close(fwh); 273 return ENOMEM;; 274 } 275 error = firmware_read(fwh, 0, ucode, size); 276 firmware_close(fwh); 277 if (error != 0) { 278 printf("%s: failed to read firmware (error %d)\n", 279 USBDEVNAME(sc->sc_dev), error); 280 firmware_free(ucode, 0); 281 return error; 282 } 283 284 if (rum_load_microcode(sc, ucode, size) != 0) { 285 printf("%s: could not load 8051 microcode\n", 286 USBDEVNAME(sc->sc_dev)); 287 firmware_free(ucode, 0); 288 return ENXIO; 289 } 290 291 firmware_free(ucode, 0); 292 sc->sc_flags |= RT2573_FWLOADED; 293 294 return 0; 295 } 296 297 USB_ATTACH(rum) 298 { 299 USB_ATTACH_START(rum, sc, uaa); 300 struct ieee80211com *ic = &sc->sc_ic; 301 struct ifnet *ifp = &sc->sc_if; 302 usb_interface_descriptor_t *id; 303 usb_endpoint_descriptor_t *ed; 304 usbd_status error; 305 char *devinfop; 306 int i, ntries; 307 uint32_t tmp; 308 309 sc->sc_udev = uaa->device; 310 sc->sc_flags = 0; 311 312 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 313 USB_ATTACH_SETUP; 314 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop); 315 usbd_devinfo_free(devinfop); 316 317 if (usbd_set_config_no(sc->sc_udev, RT2573_CONFIG_NO, 0) != 0) { 318 printf("%s: could not set configuration no\n", 319 USBDEVNAME(sc->sc_dev)); 320 USB_ATTACH_ERROR_RETURN; 321 } 322 323 /* get the first interface handle */ 324 error = usbd_device2interface_handle(sc->sc_udev, RT2573_IFACE_INDEX, 325 &sc->sc_iface); 326 if (error != 0) { 327 printf("%s: could not get interface handle\n", 328 USBDEVNAME(sc->sc_dev)); 329 USB_ATTACH_ERROR_RETURN; 330 } 331 332 /* 333 * Find endpoints. 334 */ 335 id = usbd_get_interface_descriptor(sc->sc_iface); 336 337 sc->sc_rx_no = sc->sc_tx_no = -1; 338 for (i = 0; i < id->bNumEndpoints; i++) { 339 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 340 if (ed == NULL) { 341 printf("%s: no endpoint descriptor for iface %d\n", 342 USBDEVNAME(sc->sc_dev), i); 343 USB_ATTACH_ERROR_RETURN; 344 } 345 346 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 347 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 348 sc->sc_rx_no = ed->bEndpointAddress; 349 else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 350 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 351 sc->sc_tx_no = ed->bEndpointAddress; 352 } 353 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) { 354 printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev)); 355 USB_ATTACH_ERROR_RETURN; 356 } 357 358 usb_init_task(&sc->sc_task, rum_task, sc); 359 usb_callout_init(sc->sc_scan_ch); 360 361 sc->amrr.amrr_min_success_threshold = 1; 362 sc->amrr.amrr_max_success_threshold = 10; 363 usb_callout_init(sc->sc_amrr_ch); 364 365 /* retrieve RT2573 rev. no */ 366 tmp = 0; /* XXX shut up warning */ 367 for (ntries = 0; ntries < 1000; ntries++) { 368 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 369 break; 370 DELAY(1000); 371 } 372 if (ntries == 1000) { 373 printf("%s: timeout waiting for chip to settle\n", 374 USBDEVNAME(sc->sc_dev)); 375 USB_ATTACH_ERROR_RETURN; 376 } 377 378 /* retrieve MAC address and various other things from EEPROM */ 379 rum_read_eeprom(sc); 380 381 printf("%s: MAC/BBP RT%04x (rev 0x%05x), RF %s, address %s\n", 382 USBDEVNAME(sc->sc_dev), sc->macbbp_rev, tmp, 383 rum_get_rf(sc->rf_rev), ether_sprintf(ic->ic_myaddr)); 384 385 ic->ic_ifp = ifp; 386 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 387 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 388 ic->ic_state = IEEE80211_S_INIT; 389 390 /* set device capabilities */ 391 ic->ic_caps = 392 IEEE80211_C_IBSS | /* IBSS mode supported */ 393 IEEE80211_C_MONITOR | /* monitor mode supported */ 394 IEEE80211_C_HOSTAP | /* HostAp mode supported */ 395 IEEE80211_C_TXPMGT | /* tx power management */ 396 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 397 IEEE80211_C_SHSLOT | /* short slot time supported */ 398 IEEE80211_C_WPA; /* 802.11i */ 399 400 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) { 401 /* set supported .11a rates */ 402 ic->ic_sup_rates[IEEE80211_MODE_11A] = rum_rateset_11a; 403 404 /* set supported .11a channels */ 405 for (i = 34; i <= 46; i += 4) { 406 ic->ic_channels[i].ic_freq = 407 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 408 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 409 } 410 for (i = 36; i <= 64; i += 4) { 411 ic->ic_channels[i].ic_freq = 412 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 413 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 414 } 415 for (i = 100; i <= 140; i += 4) { 416 ic->ic_channels[i].ic_freq = 417 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 418 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 419 } 420 for (i = 149; i <= 165; i += 4) { 421 ic->ic_channels[i].ic_freq = 422 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 423 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 424 } 425 } 426 427 /* set supported .11b and .11g rates */ 428 ic->ic_sup_rates[IEEE80211_MODE_11B] = rum_rateset_11b; 429 ic->ic_sup_rates[IEEE80211_MODE_11G] = rum_rateset_11g; 430 431 /* set supported .11b and .11g channels (1 through 14) */ 432 for (i = 1; i <= 14; i++) { 433 ic->ic_channels[i].ic_freq = 434 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 435 ic->ic_channels[i].ic_flags = 436 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 437 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 438 } 439 440 ifp->if_softc = sc; 441 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 442 ifp->if_init = rum_init; 443 ifp->if_ioctl = rum_ioctl; 444 ifp->if_start = rum_start; 445 ifp->if_watchdog = rum_watchdog; 446 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 447 IFQ_SET_READY(&ifp->if_snd); 448 memcpy(ifp->if_xname, USBDEVNAME(sc->sc_dev), IFNAMSIZ); 449 450 if_attach(ifp); 451 ieee80211_ifattach(ic); 452 453 /* override state transition machine */ 454 sc->sc_newstate = ic->ic_newstate; 455 ic->ic_newstate = rum_newstate; 456 ieee80211_media_init(ic, rum_media_change, ieee80211_media_status); 457 458 #if NBPFILTER > 0 459 bpfattach2(ifp, DLT_IEEE802_11_RADIO, 460 sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, &sc->sc_drvbpf); 461 462 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 463 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 464 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 465 466 sc->sc_txtap_len = sizeof sc->sc_txtapu; 467 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 468 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 469 #endif 470 471 ieee80211_announce(ic); 472 473 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 474 USBDEV(sc->sc_dev)); 475 476 USB_ATTACH_SUCCESS_RETURN; 477 } 478 479 USB_DETACH(rum) 480 { 481 USB_DETACH_START(rum, sc); 482 struct ieee80211com *ic = &sc->sc_ic; 483 struct ifnet *ifp = &sc->sc_if; 484 int s; 485 486 s = splusb(); 487 488 rum_stop(ifp, 1); 489 usb_rem_task(sc->sc_udev, &sc->sc_task); 490 usb_uncallout(sc->sc_scan_ch, rum_next_scan, sc); 491 usb_uncallout(sc->sc_amrr_ch, rum_amrr_timeout, sc); 492 493 if (sc->sc_rx_pipeh != NULL) 494 usbd_abort_pipe(sc->sc_rx_pipeh); 495 496 if (sc->sc_tx_pipeh != NULL) 497 usbd_abort_pipe(sc->sc_tx_pipeh); 498 499 rum_free_rx_list(sc); 500 rum_free_tx_list(sc); 501 502 if (sc->amrr_xfer != NULL) { 503 usbd_free_xfer(sc->amrr_xfer); 504 sc->amrr_xfer = NULL; 505 } 506 507 if (sc->sc_rx_pipeh != NULL) 508 usbd_close_pipe(sc->sc_rx_pipeh); 509 510 if (sc->sc_tx_pipeh != NULL) 511 usbd_close_pipe(sc->sc_tx_pipeh); 512 513 #if NBPFILTER > 0 514 bpfdetach(ifp); 515 #endif 516 ieee80211_ifdetach(ic); /* free all nodes */ 517 if_detach(ifp); 518 519 splx(s); 520 521 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 522 USBDEV(sc->sc_dev)); 523 524 return 0; 525 } 526 527 Static void 528 rum_free_tx_list(struct rum_softc *sc) 529 { 530 int i; 531 532 usb_ether_tx_list_free(sc->tx_data, RT2573_TX_LIST_COUNT); 533 534 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) { 535 if (sc->tx_ni[i] != NULL) { 536 ieee80211_free_node(sc->tx_ni[i]); 537 sc->tx_ni[i] = NULL; 538 } 539 } 540 } 541 542 Static void 543 rum_free_rx_list(struct rum_softc *sc) 544 { 545 546 usb_ether_rx_list_free(sc->rx_data, RT2573_RX_LIST_COUNT); 547 } 548 549 Static int 550 rum_media_change(struct ifnet *ifp) 551 { 552 int error; 553 554 error = ieee80211_media_change(ifp); 555 if (error != ENETRESET) 556 return error; 557 558 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 559 rum_init(ifp); 560 561 return 0; 562 } 563 564 /* 565 * This function is called periodically (every 200ms) during scanning to 566 * switch from one channel to another. 567 */ 568 Static void 569 rum_next_scan(void *arg) 570 { 571 struct rum_softc *sc = arg; 572 struct ieee80211com *ic = &sc->sc_ic; 573 574 if (ic->ic_state == IEEE80211_S_SCAN) 575 ieee80211_next_scan(ic); 576 } 577 578 Static void 579 rum_task(void *arg) 580 { 581 struct rum_softc *sc = arg; 582 struct ieee80211com *ic = &sc->sc_ic; 583 enum ieee80211_state ostate; 584 struct ieee80211_node *ni; 585 uint32_t tmp; 586 587 ostate = ic->ic_state; 588 589 switch (sc->sc_state) { 590 case IEEE80211_S_INIT: 591 if (ostate == IEEE80211_S_RUN) { 592 /* abort TSF synchronization */ 593 tmp = rum_read(sc, RT2573_TXRX_CSR9); 594 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 595 } 596 break; 597 598 case IEEE80211_S_SCAN: 599 rum_set_chan(sc, ic->ic_curchan); 600 usb_callout(sc->sc_scan_ch, hz / 5, rum_next_scan, sc); 601 break; 602 603 case IEEE80211_S_AUTH: 604 rum_set_chan(sc, ic->ic_curchan); 605 break; 606 607 case IEEE80211_S_ASSOC: 608 rum_set_chan(sc, ic->ic_curchan); 609 break; 610 611 case IEEE80211_S_RUN: 612 rum_set_chan(sc, ic->ic_curchan); 613 614 ni = ic->ic_bss; 615 616 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 617 rum_update_slot(sc); 618 rum_enable_mrr(sc); 619 rum_set_txpreamble(sc); 620 rum_set_basicrates(sc); 621 rum_set_bssid(sc, ni->ni_bssid); 622 } 623 624 if (ic->ic_opmode == IEEE80211_M_HOSTAP || 625 ic->ic_opmode == IEEE80211_M_IBSS) 626 rum_prepare_beacon(sc); 627 628 if (ic->ic_opmode != IEEE80211_M_MONITOR) 629 rum_enable_tsf_sync(sc); 630 631 /* enable automatic rate adaptation in STA mode */ 632 if (ic->ic_opmode == IEEE80211_M_STA && 633 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 634 rum_amrr_start(sc, ni); 635 636 break; 637 } 638 639 sc->sc_newstate(ic, sc->sc_state, -1); 640 } 641 642 Static int 643 rum_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 644 { 645 struct rum_softc *sc = ic->ic_ifp->if_softc; 646 647 usb_rem_task(sc->sc_udev, &sc->sc_task); 648 usb_uncallout(sc->sc_scan_ch, rum_next_scan, sc); 649 usb_uncallout(sc->sc_amrr_ch, rum_amrr_timeout, sc); 650 651 /* do it in a process context */ 652 sc->sc_state = nstate; 653 usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER); 654 655 return 0; 656 } 657 658 /* quickly determine if a given rate is CCK or OFDM */ 659 #define RUM_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 660 661 #define RUM_ACK_SIZE 14 /* 10 + 4(FCS) */ 662 #define RUM_CTS_SIZE 14 /* 10 + 4(FCS) */ 663 664 Static void 665 rum_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 666 { 667 struct ue_chain *data = priv; 668 struct rum_softc *sc = (void *)data->ue_dev; 669 struct ifnet *ifp = &sc->sc_if; 670 int s; 671 672 usbd_unmap_buffer(xfer); 673 674 if (status != USBD_NORMAL_COMPLETION) { 675 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 676 return; 677 678 printf("%s: could not transmit buffer: %s\n", 679 USBDEVNAME(sc->sc_dev), usbd_errstr(status)); 680 681 if (status == USBD_STALLED) 682 usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh); 683 684 ifp->if_oerrors++; 685 return; 686 } 687 688 s = splnet(); 689 690 m_freem(data->ue_mbuf); 691 data->ue_mbuf = NULL; 692 ieee80211_free_node(sc->tx_ni[data->ue_idx]); 693 sc->tx_ni[data->ue_idx] = NULL; 694 695 sc->tx_queued--; 696 ifp->if_opackets++; 697 698 DPRINTFN(10, ("tx done\n")); 699 700 sc->sc_tx_timer = 0; 701 ifp->if_flags &= ~IFF_OACTIVE; 702 rum_start(ifp); 703 704 splx(s); 705 } 706 707 Static void 708 rum_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 709 { 710 struct ue_chain *data = priv; 711 struct rum_softc *sc = (void *)data->ue_dev; 712 struct ieee80211com *ic = &sc->sc_ic; 713 struct ifnet *ifp = &sc->sc_if; 714 struct rum_rx_desc *desc; 715 struct ieee80211_frame *wh; 716 struct ieee80211_node *ni; 717 struct mbuf *m; 718 int s, len; 719 720 usbd_unmap_buffer(xfer); 721 722 if (status != USBD_NORMAL_COMPLETION) { 723 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 724 return; 725 726 if (status == USBD_STALLED) 727 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh); 728 goto skip; 729 } 730 731 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 732 733 if (len < RT2573_RX_DESC_SIZE + sizeof (struct ieee80211_frame_min)) { 734 DPRINTF(("%s: xfer too short %d\n", USBDEVNAME(sc->sc_dev), 735 len)); 736 ifp->if_ierrors++; 737 goto skip; 738 } 739 740 m = data->ue_mbuf; 741 desc = mtod(m, struct rum_rx_desc *); 742 743 if (UGETDW((u_int8_t *)&desc->flags) & RT2573_RX_CRC_ERROR) { 744 /* 745 * This should not happen since we did not request to receive 746 * those frames when we filled RT2573_TXRX_CSR0. 747 */ 748 DPRINTFN(5, ("CRC error\n")); 749 ifp->if_ierrors++; 750 goto skip; 751 } 752 753 /* 754 * Allocate new mbuf cluster for the next transfer. 755 * If that failed, discard current packet and recycle the mbuf. 756 */ 757 if ((data->ue_mbuf = usb_ether_newbuf(NULL)) == NULL) { 758 printf("%s: no memory for rx list -- packet dropped!\n", 759 USBDEVNAME(sc->sc_dev)); 760 ifp->if_ierrors++; 761 data->ue_mbuf = usb_ether_newbuf(m); 762 goto skip; 763 } 764 765 /* finalize mbuf */ 766 m->m_pkthdr.rcvif = ifp; 767 m->m_data = (void *)(desc + 1); 768 m->m_pkthdr.len = m->m_len = UGETW((u_int8_t *)&desc->flags + 2); 769 770 s = splnet(); 771 772 #if NBPFILTER > 0 773 if (sc->sc_drvbpf != NULL) { 774 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 775 776 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 777 tap->wr_rate = rum_rxrate(desc); 778 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 779 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 780 tap->wr_antenna = sc->rx_ant; 781 tap->wr_antsignal = desc->rssi; 782 783 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 784 } 785 #endif 786 787 wh = mtod(m, struct ieee80211_frame *); 788 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 789 790 /* send the frame to the 802.11 layer */ 791 ieee80211_input(ic, m, ni, desc->rssi, 0); 792 793 /* node is no longer needed */ 794 ieee80211_free_node(ni); 795 796 splx(s); 797 798 DPRINTFN(15, ("rx done\n")); 799 800 skip: /* setup a new transfer */ 801 (void)usbd_map_buffer_mbuf(xfer, data->ue_mbuf); 802 usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, NULL /* XXX buf */, MCLBYTES, 803 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof); 804 usbd_transfer(xfer); 805 } 806 807 /* 808 * This function is only used by the Rx radiotap code. It returns the rate at 809 * which a given frame was received. 810 */ 811 #if NBPFILTER > 0 812 Static uint8_t 813 rum_rxrate(struct rum_rx_desc *desc) 814 { 815 if (le32toh(desc->flags) & RT2573_RX_OFDM) { 816 /* reverse function of rum_plcp_signal */ 817 switch (desc->rate) { 818 case 0xb: return 12; 819 case 0xf: return 18; 820 case 0xa: return 24; 821 case 0xe: return 36; 822 case 0x9: return 48; 823 case 0xd: return 72; 824 case 0x8: return 96; 825 case 0xc: return 108; 826 } 827 } else { 828 if (desc->rate == 10) 829 return 2; 830 if (desc->rate == 20) 831 return 4; 832 if (desc->rate == 55) 833 return 11; 834 if (desc->rate == 110) 835 return 22; 836 } 837 return 2; /* should not get there */ 838 } 839 #endif 840 841 /* 842 * Return the expected ack rate for a frame transmitted at rate `rate'. 843 * XXX: this should depend on the destination node basic rate set. 844 */ 845 Static int 846 rum_ack_rate(struct ieee80211com *ic, int rate) 847 { 848 switch (rate) { 849 /* CCK rates */ 850 case 2: 851 return 2; 852 case 4: 853 case 11: 854 case 22: 855 return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate; 856 857 /* OFDM rates */ 858 case 12: 859 case 18: 860 return 12; 861 case 24: 862 case 36: 863 return 24; 864 case 48: 865 case 72: 866 case 96: 867 case 108: 868 return 48; 869 } 870 871 /* default to 1Mbps */ 872 return 2; 873 } 874 875 /* 876 * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'. 877 * The function automatically determines the operating mode depending on the 878 * given rate. `flags' indicates whether short preamble is in use or not. 879 */ 880 Static uint16_t 881 rum_txtime(int len, int rate, uint32_t flags) 882 { 883 uint16_t txtime; 884 885 if (RUM_RATE_IS_OFDM(rate)) { 886 /* IEEE Std 802.11a-1999, pp. 37 */ 887 txtime = (8 + 4 * len + 3 + rate - 1) / rate; 888 txtime = 16 + 4 + 4 * txtime + 6; 889 } else { 890 /* IEEE Std 802.11b-1999, pp. 28 */ 891 txtime = (16 * len + rate - 1) / rate; 892 if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE)) 893 txtime += 72 + 24; 894 else 895 txtime += 144 + 48; 896 } 897 return txtime; 898 } 899 900 Static uint8_t 901 rum_plcp_signal(int rate) 902 { 903 switch (rate) { 904 /* CCK rates (returned values are device-dependent) */ 905 case 2: return 0x0; 906 case 4: return 0x1; 907 case 11: return 0x2; 908 case 22: return 0x3; 909 910 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 911 case 12: return 0xb; 912 case 18: return 0xf; 913 case 24: return 0xa; 914 case 36: return 0xe; 915 case 48: return 0x9; 916 case 72: return 0xd; 917 case 96: return 0x8; 918 case 108: return 0xc; 919 920 /* unsupported rates (should not get there) */ 921 default: return 0xff; 922 } 923 } 924 925 Static void 926 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 927 uint32_t flags, uint16_t xflags, int len, int rate) 928 { 929 struct ieee80211com *ic = &sc->sc_ic; 930 uint16_t plcp_length; 931 int remainder; 932 933 desc->flags = htole32(flags); 934 desc->flags |= htole32(RT2573_TX_VALID); 935 desc->flags |= htole32(len << 16); 936 937 desc->xflags = htole16(xflags); 938 939 desc->wme = htole16( 940 RT2573_QID(0) | 941 RT2573_AIFSN(2) | 942 RT2573_LOGCWMIN(4) | 943 RT2573_LOGCWMAX(10)); 944 945 /* setup PLCP fields */ 946 desc->plcp_signal = rum_plcp_signal(rate); 947 desc->plcp_service = 4; 948 949 len += IEEE80211_CRC_LEN; 950 if (RUM_RATE_IS_OFDM(rate)) { 951 desc->flags |= htole32(RT2573_TX_OFDM); 952 953 plcp_length = len & 0xfff; 954 desc->plcp_length_hi = plcp_length >> 6; 955 desc->plcp_length_lo = plcp_length & 0x3f; 956 } else { 957 plcp_length = (16 * len + rate - 1) / rate; 958 if (rate == 22) { 959 remainder = (16 * len) % 22; 960 if (remainder != 0 && remainder < 7) 961 desc->plcp_service |= RT2573_PLCP_LENGEXT; 962 } 963 desc->plcp_length_hi = plcp_length >> 8; 964 desc->plcp_length_lo = plcp_length & 0xff; 965 966 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 967 desc->plcp_signal |= 0x08; 968 } 969 } 970 971 #define RUM_TX_TIMEOUT 5000 972 973 Static int 974 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 975 { 976 struct ieee80211com *ic = &sc->sc_ic; 977 struct rum_tx_desc *desc; 978 struct ue_chain *data; 979 struct ieee80211_frame *wh; 980 uint32_t flags = 0; 981 uint16_t dur; 982 usbd_status error; 983 int xferlen, rate; 984 int ret; 985 986 data = &sc->tx_data[0]; 987 988 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; 989 990 data->ue_mbuf = m0; 991 sc->tx_ni[data->ue_idx] = ni; 992 993 wh = mtod(m0, struct ieee80211_frame *); 994 995 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 996 flags |= RT2573_TX_ACK; 997 998 dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate), 999 ic->ic_flags) + sc->sifs; 1000 *(uint16_t *)wh->i_dur = htole16(dur); 1001 1002 /* tell hardware to set timestamp in probe responses */ 1003 if ((wh->i_fc[0] & 1004 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1005 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1006 flags |= RT2573_TX_TIMESTAMP; 1007 } 1008 1009 #if NBPFILTER > 0 1010 if (sc->sc_drvbpf != NULL) { 1011 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1012 1013 tap->wt_flags = 0; 1014 tap->wt_rate = rate; 1015 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1016 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1017 tap->wt_antenna = sc->tx_ant; 1018 1019 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1020 } 1021 #endif 1022 1023 /* Prepend Tx descriptor */ 1024 M_PREPEND(m0, RT2573_TX_DESC_SIZE, M_DONTWAIT); 1025 if (m0 != NULL) 1026 m0 = m_pullup(m0, RT2573_TX_DESC_SIZE); /* just in case */ 1027 if (m0 == NULL) { 1028 return ENOBUFS; 1029 } 1030 desc = mtod(m0, struct rum_tx_desc *); 1031 1032 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate); 1033 1034 /* align end on a 4-bytes boundary */ 1035 xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3; 1036 1037 /* 1038 * No space left in the last URB to store the extra 4 bytes, force 1039 * sending of another URB. 1040 */ 1041 if ((xferlen % 64) == 0) 1042 xferlen += 4; 1043 1044 if (m0->m_pkthdr.len != xferlen) { 1045 m_copyback(m0, xferlen - 1, 1, ""); /* expand mbuf chain */ 1046 if (m0->m_pkthdr.len != xferlen) { 1047 m_freem(m0); 1048 return ENOBUFS; 1049 } 1050 } 1051 1052 ret = usb_ether_map_tx_buffer_mbuf(data, m0); 1053 if (ret) { 1054 m_freem(m0); 1055 return ret; 1056 } 1057 1058 DPRINTFN(10, ("sending msg frame len=%lu rate=%u xfer len=%u\n", 1059 (long unsigned int)m0->m_pkthdr.len + RT2573_TX_DESC_SIZE, 1060 rate, xferlen)); 1061 1062 usbd_setup_xfer(data->ue_xfer, sc->sc_tx_pipeh, data, NULL /* XXX buf */, xferlen, 1063 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof); 1064 1065 error = usbd_transfer(data->ue_xfer); 1066 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1067 data->ue_mbuf = NULL; 1068 m_freem(m0); 1069 return error; 1070 } 1071 1072 sc->tx_queued++; 1073 1074 return 0; 1075 } 1076 1077 Static int 1078 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1079 { 1080 struct ieee80211com *ic = &sc->sc_ic; 1081 struct rum_tx_desc *desc; 1082 struct ue_chain *data; 1083 struct ieee80211_frame *wh; 1084 struct ieee80211_key *k; 1085 uint32_t flags = 0; 1086 uint16_t dur; 1087 usbd_status error; 1088 int xferlen, rate; 1089 int ret; 1090 1091 wh = mtod(m0, struct ieee80211_frame *); 1092 1093 if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE) 1094 rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_fixed_rate]; 1095 else 1096 rate = ni->ni_rates.rs_rates[ni->ni_txrate]; 1097 rate &= IEEE80211_RATE_VAL; 1098 1099 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1100 k = ieee80211_crypto_encap(ic, ni, m0); 1101 if (k == NULL) { 1102 m_freem(m0); 1103 return ENOBUFS; 1104 } 1105 1106 /* packet header may have moved, reset our local pointer */ 1107 wh = mtod(m0, struct ieee80211_frame *); 1108 } 1109 1110 data = &sc->tx_data[0]; 1111 1112 data->ue_mbuf = m0; 1113 sc->tx_ni[data->ue_idx] = ni; 1114 1115 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1116 flags |= RT2573_TX_ACK; 1117 1118 dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate), 1119 ic->ic_flags) + sc->sifs; 1120 *(uint16_t *)wh->i_dur = htole16(dur); 1121 } 1122 1123 #if NBPFILTER > 0 1124 if (sc->sc_drvbpf != NULL) { 1125 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1126 1127 tap->wt_flags = 0; 1128 tap->wt_rate = rate; 1129 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1130 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1131 tap->wt_antenna = sc->tx_ant; 1132 1133 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1134 } 1135 #endif 1136 1137 /* Prepend Tx descriptor */ 1138 M_PREPEND(m0, RT2573_TX_DESC_SIZE, M_DONTWAIT); 1139 if (m0 != NULL) 1140 m0 = m_pullup(m0, RT2573_TX_DESC_SIZE); /* just in case */ 1141 if (m0 == NULL) { 1142 return ENOBUFS; 1143 } 1144 desc = mtod(m0, struct rum_tx_desc *); 1145 1146 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate); 1147 1148 /* align end on a 4-bytes boundary */ 1149 xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3; 1150 1151 /* 1152 * No space left in the last URB to store the extra 4 bytes, force 1153 * sending of another URB. 1154 */ 1155 if ((xferlen % 64) == 0) 1156 xferlen += 4; 1157 1158 if (m0->m_pkthdr.len != xferlen) { 1159 m_copyback(m0, xferlen - 1, 1, ""); /* expand mbuf chain */ 1160 if (m0->m_pkthdr.len != xferlen) { 1161 m_freem(m0); 1162 return ENOBUFS; 1163 } 1164 } 1165 1166 ret = usb_ether_map_tx_buffer_mbuf(data, m0); 1167 if (ret) { 1168 m_freem(m0); 1169 return ret; 1170 } 1171 1172 DPRINTFN(10, ("sending data frame len=%lu rate=%u xfer len=%u\n", 1173 (long unsigned int)m0->m_pkthdr.len + RT2573_TX_DESC_SIZE, 1174 rate, xferlen)); 1175 1176 usbd_setup_xfer(data->ue_xfer, sc->sc_tx_pipeh, data, NULL /* XXX buf */, xferlen, 1177 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof); 1178 1179 error = usbd_transfer(data->ue_xfer); 1180 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1181 data->ue_mbuf = NULL; 1182 m_freem(m0); 1183 return error; 1184 } 1185 1186 sc->tx_queued++; 1187 1188 return 0; 1189 } 1190 1191 Static void 1192 rum_start(struct ifnet *ifp) 1193 { 1194 struct rum_softc *sc = ifp->if_softc; 1195 struct ieee80211com *ic = &sc->sc_ic; 1196 struct ether_header *eh; 1197 struct ieee80211_node *ni; 1198 struct mbuf *m0; 1199 1200 for (;;) { 1201 IF_POLL(&ic->ic_mgtq, m0); 1202 if (m0 != NULL) { 1203 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) { 1204 ifp->if_flags |= IFF_OACTIVE; 1205 break; 1206 } 1207 IF_DEQUEUE(&ic->ic_mgtq, m0); 1208 1209 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 1210 m0->m_pkthdr.rcvif = NULL; 1211 #if NBPFILTER > 0 1212 if (ic->ic_rawbpf != NULL) 1213 bpf_mtap(ic->ic_rawbpf, m0); 1214 #endif 1215 if (rum_tx_mgt(sc, m0, ni) != 0) 1216 break; 1217 1218 } else { 1219 if (ic->ic_state != IEEE80211_S_RUN) 1220 break; 1221 IFQ_POLL(&ifp->if_snd, m0); 1222 if (m0 == NULL) 1223 break; 1224 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) { 1225 ifp->if_flags |= IFF_OACTIVE; 1226 break; 1227 } 1228 IFQ_DEQUEUE(&ifp->if_snd, m0); 1229 if (m0->m_len < sizeof(struct ether_header) && 1230 !(m0 = m_pullup(m0, sizeof(struct ether_header)))) 1231 continue; 1232 1233 eh = mtod(m0, struct ether_header *); 1234 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1235 if (ni == NULL) { 1236 m_freem(m0); 1237 continue; 1238 } 1239 #if NBPFILTER > 0 1240 if (ifp->if_bpf != NULL) 1241 bpf_mtap(ifp->if_bpf, m0); 1242 #endif 1243 m0 = ieee80211_encap(ic, m0, ni); 1244 if (m0 == NULL) { 1245 ieee80211_free_node(ni); 1246 continue; 1247 } 1248 #if NBPFILTER > 0 1249 if (ic->ic_rawbpf != NULL) 1250 bpf_mtap(ic->ic_rawbpf, m0); 1251 #endif 1252 if (rum_tx_data(sc, m0, ni) != 0) { 1253 ieee80211_free_node(ni); 1254 ifp->if_oerrors++; 1255 break; 1256 } 1257 } 1258 1259 sc->sc_tx_timer = 5; 1260 ifp->if_timer = 1; 1261 } 1262 } 1263 1264 Static void 1265 rum_watchdog(struct ifnet *ifp) 1266 { 1267 struct rum_softc *sc = ifp->if_softc; 1268 struct ieee80211com *ic = &sc->sc_ic; 1269 1270 ifp->if_timer = 0; 1271 1272 if (sc->sc_tx_timer > 0) { 1273 if (--sc->sc_tx_timer == 0) { 1274 printf("%s: device timeout\n", USBDEVNAME(sc->sc_dev)); 1275 /*rum_init(ifp); XXX needs a process context! */ 1276 ifp->if_oerrors++; 1277 return; 1278 } 1279 ifp->if_timer = 1; 1280 } 1281 1282 ieee80211_watchdog(ic); 1283 } 1284 1285 Static int 1286 rum_ioctl(struct ifnet *ifp, u_long cmd, usb_ioctlarg_t data) 1287 { 1288 struct rum_softc *sc = ifp->if_softc; 1289 struct ieee80211com *ic = &sc->sc_ic; 1290 int s, error = 0; 1291 1292 s = splnet(); 1293 1294 switch (cmd) { 1295 case SIOCSIFFLAGS: 1296 if (ifp->if_flags & IFF_UP) { 1297 if (ifp->if_flags & IFF_RUNNING) 1298 rum_update_promisc(sc); 1299 else 1300 rum_init(ifp); 1301 } else { 1302 if (ifp->if_flags & IFF_RUNNING) 1303 rum_stop(ifp, 1); 1304 } 1305 break; 1306 1307 default: 1308 error = ieee80211_ioctl(ic, cmd, data); 1309 } 1310 1311 if (error == ENETRESET) { 1312 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1313 (IFF_UP | IFF_RUNNING)) 1314 rum_init(ifp); 1315 error = 0; 1316 } 1317 1318 splx(s); 1319 1320 return error; 1321 } 1322 1323 Static void 1324 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1325 { 1326 usb_device_request_t req; 1327 usbd_status error; 1328 1329 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1330 req.bRequest = RT2573_READ_EEPROM; 1331 USETW(req.wValue, 0); 1332 USETW(req.wIndex, addr); 1333 USETW(req.wLength, len); 1334 1335 error = usbd_do_request(sc->sc_udev, &req, buf); 1336 if (error != 0) { 1337 printf("%s: could not read EEPROM: %s\n", 1338 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 1339 } 1340 } 1341 1342 Static uint32_t 1343 rum_read(struct rum_softc *sc, uint16_t reg) 1344 { 1345 uint32_t val; 1346 1347 rum_read_multi(sc, reg, &val, sizeof val); 1348 1349 return le32toh(val); 1350 } 1351 1352 Static void 1353 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1354 { 1355 usb_device_request_t req; 1356 usbd_status error; 1357 1358 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1359 req.bRequest = RT2573_READ_MULTI_MAC; 1360 USETW(req.wValue, 0); 1361 USETW(req.wIndex, reg); 1362 USETW(req.wLength, len); 1363 1364 error = usbd_do_request(sc->sc_udev, &req, buf); 1365 if (error != 0) { 1366 printf("%s: could not multi read MAC register: %s\n", 1367 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 1368 } 1369 } 1370 1371 Static void 1372 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1373 { 1374 uint32_t tmp = htole32(val); 1375 1376 rum_write_multi(sc, reg, &tmp, sizeof tmp); 1377 } 1378 1379 Static void 1380 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1381 { 1382 usb_device_request_t req; 1383 usbd_status error; 1384 1385 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1386 req.bRequest = RT2573_WRITE_MULTI_MAC; 1387 USETW(req.wValue, 0); 1388 USETW(req.wIndex, reg); 1389 USETW(req.wLength, len); 1390 1391 error = usbd_do_request(sc->sc_udev, &req, buf); 1392 if (error != 0) { 1393 printf("%s: could not multi write MAC register: %s\n", 1394 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 1395 } 1396 } 1397 1398 Static void 1399 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1400 { 1401 uint32_t tmp; 1402 int ntries; 1403 1404 for (ntries = 0; ntries < 5; ntries++) { 1405 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1406 break; 1407 } 1408 if (ntries == 5) { 1409 printf("%s: could not write to BBP\n", USBDEVNAME(sc->sc_dev)); 1410 return; 1411 } 1412 1413 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1414 rum_write(sc, RT2573_PHY_CSR3, tmp); 1415 } 1416 1417 Static uint8_t 1418 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1419 { 1420 uint32_t val; 1421 int ntries; 1422 1423 for (ntries = 0; ntries < 5; ntries++) { 1424 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1425 break; 1426 } 1427 if (ntries == 5) { 1428 printf("%s: could not read BBP\n", USBDEVNAME(sc->sc_dev)); 1429 return 0; 1430 } 1431 1432 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1433 rum_write(sc, RT2573_PHY_CSR3, val); 1434 1435 for (ntries = 0; ntries < 100; ntries++) { 1436 val = rum_read(sc, RT2573_PHY_CSR3); 1437 if (!(val & RT2573_BBP_BUSY)) 1438 return val & 0xff; 1439 DELAY(1); 1440 } 1441 1442 printf("%s: could not read BBP\n", USBDEVNAME(sc->sc_dev)); 1443 return 0; 1444 } 1445 1446 Static void 1447 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1448 { 1449 uint32_t tmp; 1450 int ntries; 1451 1452 for (ntries = 0; ntries < 5; ntries++) { 1453 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1454 break; 1455 } 1456 if (ntries == 5) { 1457 printf("%s: could not write to RF\n", USBDEVNAME(sc->sc_dev)); 1458 return; 1459 } 1460 1461 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1462 (reg & 3); 1463 rum_write(sc, RT2573_PHY_CSR4, tmp); 1464 1465 /* remember last written value in sc */ 1466 sc->rf_regs[reg] = val; 1467 1468 DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff)); 1469 } 1470 1471 Static void 1472 rum_select_antenna(struct rum_softc *sc) 1473 { 1474 uint8_t bbp4, bbp77; 1475 uint32_t tmp; 1476 1477 bbp4 = rum_bbp_read(sc, 4); 1478 bbp77 = rum_bbp_read(sc, 77); 1479 1480 /* TBD */ 1481 1482 /* make sure Rx is disabled before switching antenna */ 1483 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1484 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1485 1486 rum_bbp_write(sc, 4, bbp4); 1487 rum_bbp_write(sc, 77, bbp77); 1488 1489 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1490 } 1491 1492 /* 1493 * Enable multi-rate retries for frames sent at OFDM rates. 1494 * In 802.11b/g mode, allow fallback to CCK rates. 1495 */ 1496 Static void 1497 rum_enable_mrr(struct rum_softc *sc) 1498 { 1499 struct ieee80211com *ic = &sc->sc_ic; 1500 uint32_t tmp; 1501 1502 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1503 1504 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1505 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) 1506 tmp |= RT2573_MRR_CCK_FALLBACK; 1507 tmp |= RT2573_MRR_ENABLED; 1508 1509 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1510 } 1511 1512 Static void 1513 rum_set_txpreamble(struct rum_softc *sc) 1514 { 1515 uint32_t tmp; 1516 1517 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1518 1519 tmp &= ~RT2573_SHORT_PREAMBLE; 1520 if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE) 1521 tmp |= RT2573_SHORT_PREAMBLE; 1522 1523 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1524 } 1525 1526 Static void 1527 rum_set_basicrates(struct rum_softc *sc) 1528 { 1529 struct ieee80211com *ic = &sc->sc_ic; 1530 1531 /* update basic rate set */ 1532 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1533 /* 11b basic rates: 1, 2Mbps */ 1534 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1535 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) { 1536 /* 11a basic rates: 6, 12, 24Mbps */ 1537 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1538 } else { 1539 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */ 1540 rum_write(sc, RT2573_TXRX_CSR5, 0x15f); 1541 } 1542 } 1543 1544 /* 1545 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1546 * driver. 1547 */ 1548 Static void 1549 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1550 { 1551 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1552 uint32_t tmp; 1553 1554 /* update all BBP registers that depend on the band */ 1555 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1556 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1557 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1558 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1559 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1560 } 1561 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1562 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1563 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1564 } 1565 1566 sc->bbp17 = bbp17; 1567 rum_bbp_write(sc, 17, bbp17); 1568 rum_bbp_write(sc, 96, bbp96); 1569 rum_bbp_write(sc, 104, bbp104); 1570 1571 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1572 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1573 rum_bbp_write(sc, 75, 0x80); 1574 rum_bbp_write(sc, 86, 0x80); 1575 rum_bbp_write(sc, 88, 0x80); 1576 } 1577 1578 rum_bbp_write(sc, 35, bbp35); 1579 rum_bbp_write(sc, 97, bbp97); 1580 rum_bbp_write(sc, 98, bbp98); 1581 1582 tmp = rum_read(sc, RT2573_PHY_CSR0); 1583 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1584 if (IEEE80211_IS_CHAN_2GHZ(c)) 1585 tmp |= RT2573_PA_PE_2GHZ; 1586 else 1587 tmp |= RT2573_PA_PE_5GHZ; 1588 rum_write(sc, RT2573_PHY_CSR0, tmp); 1589 1590 /* 802.11a uses a 16 microseconds short interframe space */ 1591 sc->sifs = IEEE80211_IS_CHAN_5GHZ(c) ? 16 : 10; 1592 } 1593 1594 Static void 1595 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1596 { 1597 struct ieee80211com *ic = &sc->sc_ic; 1598 const struct rfprog *rfprog; 1599 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1600 int8_t power; 1601 u_int i, chan; 1602 1603 chan = ieee80211_chan2ieee(ic, c); 1604 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1605 return; 1606 1607 /* select the appropriate RF settings based on what EEPROM says */ 1608 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1609 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1610 1611 /* find the settings for this channel (we know it exists) */ 1612 for (i = 0; rfprog[i].chan != chan; i++); 1613 1614 power = sc->txpow[i]; 1615 if (power < 0) { 1616 bbp94 += power; 1617 power = 0; 1618 } else if (power > 31) { 1619 bbp94 += power - 31; 1620 power = 31; 1621 } 1622 1623 /* 1624 * If we are switching from the 2GHz band to the 5GHz band or 1625 * vice-versa, BBP registers need to be reprogrammed. 1626 */ 1627 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1628 rum_select_band(sc, c); 1629 rum_select_antenna(sc); 1630 } 1631 ic->ic_curchan = c; 1632 1633 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1634 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1635 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1636 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1637 1638 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1639 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1640 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1641 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1642 1643 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1644 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1645 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1646 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1647 1648 DELAY(10); 1649 1650 /* enable smart mode for MIMO-capable RFs */ 1651 bbp3 = rum_bbp_read(sc, 3); 1652 1653 bbp3 &= ~RT2573_SMART_MODE; 1654 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1655 bbp3 |= RT2573_SMART_MODE; 1656 1657 rum_bbp_write(sc, 3, bbp3); 1658 1659 if (bbp94 != RT2573_BBPR94_DEFAULT) 1660 rum_bbp_write(sc, 94, bbp94); 1661 } 1662 1663 /* 1664 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1665 * and HostAP operating modes. 1666 */ 1667 Static void 1668 rum_enable_tsf_sync(struct rum_softc *sc) 1669 { 1670 struct ieee80211com *ic = &sc->sc_ic; 1671 uint32_t tmp; 1672 1673 if (ic->ic_opmode != IEEE80211_M_STA) { 1674 /* 1675 * Change default 16ms TBTT adjustment to 8ms. 1676 * Must be done before enabling beacon generation. 1677 */ 1678 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1679 } 1680 1681 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1682 1683 /* set beacon interval (in 1/16ms unit) */ 1684 tmp |= ic->ic_bss->ni_intval * 16; 1685 1686 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1687 if (ic->ic_opmode == IEEE80211_M_STA) 1688 tmp |= RT2573_TSF_MODE(1); 1689 else 1690 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1691 1692 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1693 } 1694 1695 Static void 1696 rum_update_slot(struct rum_softc *sc) 1697 { 1698 struct ieee80211com *ic = &sc->sc_ic; 1699 uint8_t slottime; 1700 uint32_t tmp; 1701 1702 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1703 1704 tmp = rum_read(sc, RT2573_MAC_CSR9); 1705 tmp = (tmp & ~0xff) | slottime; 1706 rum_write(sc, RT2573_MAC_CSR9, tmp); 1707 1708 DPRINTF(("setting slot time to %uus\n", slottime)); 1709 } 1710 1711 Static void 1712 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1713 { 1714 uint32_t tmp; 1715 1716 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1717 rum_write(sc, RT2573_MAC_CSR4, tmp); 1718 1719 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1720 rum_write(sc, RT2573_MAC_CSR5, tmp); 1721 } 1722 1723 Static void 1724 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1725 { 1726 uint32_t tmp; 1727 1728 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1729 rum_write(sc, RT2573_MAC_CSR2, tmp); 1730 1731 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1732 rum_write(sc, RT2573_MAC_CSR3, tmp); 1733 } 1734 1735 Static void 1736 rum_update_promisc(struct rum_softc *sc) 1737 { 1738 struct ifnet *ifp = sc->sc_ic.ic_ifp; 1739 uint32_t tmp; 1740 1741 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1742 1743 tmp &= ~RT2573_DROP_NOT_TO_ME; 1744 if (!(ifp->if_flags & IFF_PROMISC)) 1745 tmp |= RT2573_DROP_NOT_TO_ME; 1746 1747 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1748 1749 DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1750 "entering" : "leaving")); 1751 } 1752 1753 Static const char * 1754 rum_get_rf(int rev) 1755 { 1756 switch (rev) { 1757 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1758 case RT2573_RF_2528: return "RT2528"; 1759 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1760 case RT2573_RF_5226: return "RT5226"; 1761 default: return "unknown"; 1762 } 1763 } 1764 1765 Static void 1766 rum_read_eeprom(struct rum_softc *sc) 1767 { 1768 struct ieee80211com *ic = &sc->sc_ic; 1769 uint16_t val; 1770 #ifdef RUM_DEBUG 1771 int i; 1772 #endif 1773 1774 /* read MAC/BBP type */ 1775 rum_eeprom_read(sc, RT2573_EEPROM_MACBBP, &val, 2); 1776 sc->macbbp_rev = le16toh(val); 1777 1778 /* read MAC address */ 1779 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6); 1780 1781 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1782 val = le16toh(val); 1783 sc->rf_rev = (val >> 11) & 0x1f; 1784 sc->hw_radio = (val >> 10) & 0x1; 1785 sc->rx_ant = (val >> 4) & 0x3; 1786 sc->tx_ant = (val >> 2) & 0x3; 1787 sc->nb_ant = val & 0x3; 1788 1789 DPRINTF(("RF revision=%d\n", sc->rf_rev)); 1790 1791 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1792 val = le16toh(val); 1793 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1794 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1795 1796 DPRINTF(("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1797 sc->ext_2ghz_lna, sc->ext_5ghz_lna)); 1798 1799 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1800 val = le16toh(val); 1801 if ((val & 0xff) != 0xff) 1802 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1803 1804 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1805 val = le16toh(val); 1806 if ((val & 0xff) != 0xff) 1807 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1808 1809 DPRINTF(("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1810 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr)); 1811 1812 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1813 val = le16toh(val); 1814 if ((val & 0xff) != 0xff) 1815 sc->rffreq = val & 0xff; 1816 1817 DPRINTF(("RF freq=%d\n", sc->rffreq)); 1818 1819 /* read Tx power for all a/b/g channels */ 1820 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1821 /* XXX default Tx power for 802.11a channels */ 1822 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1823 #ifdef RUM_DEBUG 1824 for (i = 0; i < 14; i++) 1825 DPRINTF(("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i])); 1826 #endif 1827 1828 /* read default values for BBP registers */ 1829 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1830 #ifdef RUM_DEBUG 1831 for (i = 0; i < 14; i++) { 1832 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1833 continue; 1834 DPRINTF(("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1835 sc->bbp_prom[i].val)); 1836 } 1837 #endif 1838 } 1839 1840 Static int 1841 rum_bbp_init(struct rum_softc *sc) 1842 { 1843 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1844 int i, ntries; 1845 uint8_t val; 1846 1847 /* wait for BBP to be ready */ 1848 for (ntries = 0; ntries < 100; ntries++) { 1849 val = rum_bbp_read(sc, 0); 1850 if (val != 0 && val != 0xff) 1851 break; 1852 DELAY(1000); 1853 } 1854 if (ntries == 100) { 1855 printf("%s: timeout waiting for BBP\n", 1856 USBDEVNAME(sc->sc_dev)); 1857 return EIO; 1858 } 1859 1860 /* initialize BBP registers to default values */ 1861 for (i = 0; i < N(rum_def_bbp); i++) 1862 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1863 1864 /* write vendor-specific BBP values (from EEPROM) */ 1865 for (i = 0; i < 16; i++) { 1866 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1867 continue; 1868 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1869 } 1870 1871 return 0; 1872 #undef N 1873 } 1874 1875 Static int 1876 rum_init(struct ifnet *ifp) 1877 { 1878 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1879 struct rum_softc *sc = ifp->if_softc; 1880 struct ieee80211com *ic = &sc->sc_ic; 1881 struct ue_chain *data; 1882 uint32_t tmp; 1883 usbd_status uerror; 1884 int error; 1885 int i, ntries; 1886 1887 if ((sc->sc_flags & RT2573_FWLOADED) == 0) { 1888 if (rum_attachhook(sc)) { 1889 error = EIO; 1890 goto fail; 1891 } 1892 } 1893 1894 rum_stop(ifp, 0); 1895 1896 /* initialize MAC registers to default values */ 1897 for (i = 0; i < N(rum_def_mac); i++) 1898 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1899 1900 /* set host ready */ 1901 rum_write(sc, RT2573_MAC_CSR1, 3); 1902 rum_write(sc, RT2573_MAC_CSR1, 0); 1903 1904 /* wait for BBP/RF to wakeup */ 1905 for (ntries = 0; ntries < 1000; ntries++) { 1906 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1907 break; 1908 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1909 DELAY(1000); 1910 } 1911 if (ntries == 1000) { 1912 printf("%s: timeout waiting for BBP/RF to wakeup\n", 1913 USBDEVNAME(sc->sc_dev)); 1914 error = EIO; 1915 goto fail; 1916 } 1917 1918 if ((error = rum_bbp_init(sc)) != 0) 1919 goto fail; 1920 1921 /* select default channel */ 1922 rum_select_band(sc, ic->ic_curchan); 1923 rum_select_antenna(sc); 1924 rum_set_chan(sc, ic->ic_curchan); 1925 1926 /* clear STA registers */ 1927 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1928 1929 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 1930 rum_set_macaddr(sc, ic->ic_myaddr); 1931 1932 /* initialize ASIC */ 1933 rum_write(sc, RT2573_MAC_CSR1, 4); 1934 1935 /* 1936 * Allocate xfer for AMRR statistics requests. 1937 */ 1938 sc->amrr_xfer = usbd_alloc_default_xfer(sc->sc_udev); 1939 if (sc->amrr_xfer == NULL) { 1940 printf("%s: could not allocate AMRR xfer\n", 1941 USBDEVNAME(sc->sc_dev)); 1942 goto fail; 1943 } 1944 1945 /* 1946 * Open Tx and Rx USB bulk pipes. 1947 */ 1948 uerror = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE, 1949 &sc->sc_tx_pipeh); 1950 if (uerror != USBD_NORMAL_COMPLETION) { 1951 printf("%s: could not open Tx pipe: %s\n", 1952 USBDEVNAME(sc->sc_dev), usbd_errstr(uerror)); 1953 error = EIO; 1954 goto fail; 1955 } 1956 1957 uerror = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE, 1958 &sc->sc_rx_pipeh); 1959 if (uerror != USBD_NORMAL_COMPLETION) { 1960 printf("%s: could not open Rx pipe: %s\n", 1961 USBDEVNAME(sc->sc_dev), usbd_errstr(uerror)); 1962 error = EIO; 1963 goto fail; 1964 } 1965 1966 /* 1967 * Allocate Tx and Rx xfer queues. 1968 */ 1969 sc->tx_queued = 0; 1970 error = usb_ether_tx_list_init(USBDEV(sc->sc_dev), 1971 sc->tx_data, RT2573_TX_LIST_COUNT, 1972 sc->sc_udev, sc->sc_tx_pipeh, NULL); 1973 if (error != 0) { 1974 printf("%s: could not allocate Tx list\n", 1975 USBDEVNAME(sc->sc_dev)); 1976 goto fail; 1977 } 1978 1979 error = usb_ether_rx_list_init(USBDEV(sc->sc_dev), 1980 sc->rx_data, RT2573_RX_LIST_COUNT, 1981 sc->sc_udev, sc->sc_rx_pipeh); 1982 if (error != 0) { 1983 printf("%s: could not allocate Rx list\n", 1984 USBDEVNAME(sc->sc_dev)); 1985 goto fail; 1986 } 1987 1988 /* 1989 * Start up the receive pipe. 1990 */ 1991 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) { 1992 data = &sc->rx_data[i]; 1993 1994 (void)usbd_map_buffer_mbuf(data->ue_xfer, data->ue_mbuf); 1995 usbd_setup_xfer(data->ue_xfer, sc->sc_rx_pipeh, data, NULL /* XXX buf */, 1996 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof); 1997 usbd_transfer(data->ue_xfer); 1998 } 1999 2000 /* update Rx filter */ 2001 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2002 2003 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2004 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2005 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2006 RT2573_DROP_ACKCTS; 2007 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2008 tmp |= RT2573_DROP_TODS; 2009 if (!(ifp->if_flags & IFF_PROMISC)) 2010 tmp |= RT2573_DROP_NOT_TO_ME; 2011 } 2012 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2013 2014 ifp->if_flags &= ~IFF_OACTIVE; 2015 ifp->if_flags |= IFF_RUNNING; 2016 2017 if (ic->ic_opmode == IEEE80211_M_MONITOR) 2018 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2019 else 2020 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2021 2022 return 0; 2023 2024 fail: rum_stop(ifp, 1); 2025 return error; 2026 #undef N 2027 } 2028 2029 Static void 2030 rum_stop(struct ifnet *ifp, int disable) 2031 { 2032 struct rum_softc *sc = ifp->if_softc; 2033 struct ieee80211com *ic = &sc->sc_ic; 2034 uint32_t tmp; 2035 2036 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); /* free all nodes */ 2037 2038 sc->sc_tx_timer = 0; 2039 ifp->if_timer = 0; 2040 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2041 2042 /* disable Rx */ 2043 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2044 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2045 2046 /* reset ASIC */ 2047 rum_write(sc, RT2573_MAC_CSR1, 3); 2048 rum_write(sc, RT2573_MAC_CSR1, 0); 2049 2050 /* Stop transfers. */ 2051 if (sc->sc_rx_pipeh != NULL) 2052 usbd_abort_pipe(sc->sc_rx_pipeh); 2053 if (sc->sc_tx_pipeh != NULL) 2054 usbd_abort_pipe(sc->sc_tx_pipeh); 2055 2056 /* Free RX/TX resources. */ 2057 rum_free_rx_list(sc); 2058 rum_free_tx_list(sc); 2059 2060 /* Close pipes. */ 2061 if (sc->sc_rx_pipeh != NULL) { 2062 usbd_close_pipe(sc->sc_rx_pipeh); 2063 sc->sc_rx_pipeh = NULL; 2064 } 2065 2066 if (sc->sc_tx_pipeh != NULL) { 2067 usbd_close_pipe(sc->sc_tx_pipeh); 2068 sc->sc_tx_pipeh = NULL; 2069 } 2070 } 2071 2072 Static int 2073 rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size) 2074 { 2075 usb_device_request_t req; 2076 uint16_t reg = RT2573_MCU_CODE_BASE; 2077 usbd_status error; 2078 2079 /* copy firmware image into NIC */ 2080 for (; size >= 4; reg += 4, ucode += 4, size -= 4) 2081 rum_write(sc, reg, UGETDW(ucode)); 2082 2083 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2084 req.bRequest = RT2573_MCU_CNTL; 2085 USETW(req.wValue, RT2573_MCU_RUN); 2086 USETW(req.wIndex, 0); 2087 USETW(req.wLength, 0); 2088 2089 error = usbd_do_request(sc->sc_udev, &req, NULL); 2090 if (error != 0) { 2091 printf("%s: could not run firmware: %s\n", 2092 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 2093 } 2094 return error; 2095 } 2096 2097 Static int 2098 rum_prepare_beacon(struct rum_softc *sc) 2099 { 2100 struct ieee80211com *ic = &sc->sc_ic; 2101 struct rum_tx_desc desc; 2102 struct mbuf *m0; 2103 int rate; 2104 2105 m0 = ieee80211_beacon_alloc(ic, ic->ic_bss, &sc->sc_bo); 2106 if (m0 == NULL) { 2107 printf("%s: could not allocate beacon frame\n", 2108 sc->sc_dev.dv_xname); 2109 return ENOBUFS; 2110 } 2111 2112 /* send beacons at the lowest available rate */ 2113 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; 2114 2115 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2116 m0->m_pkthdr.len, rate); 2117 2118 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2119 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2120 2121 /* copy beacon header and payload into NIC memory */ 2122 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2123 m0->m_pkthdr.len); 2124 2125 m_freem(m0); 2126 2127 return 0; 2128 } 2129 2130 Static void 2131 rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2132 { 2133 int i; 2134 2135 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2136 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2137 2138 ieee80211_amrr_node_init(&sc->amrr, &sc->amn); 2139 2140 /* set rate to some reasonable initial value */ 2141 for (i = ni->ni_rates.rs_nrates - 1; 2142 i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72; 2143 i--); 2144 ni->ni_txrate = i; 2145 2146 usb_callout(sc->sc_amrr_ch, hz, rum_amrr_timeout, sc); 2147 } 2148 2149 Static void 2150 rum_amrr_timeout(void *arg) 2151 { 2152 struct rum_softc *sc = arg; 2153 usb_device_request_t req; 2154 int s; 2155 2156 s = splusb(); 2157 2158 /* 2159 * Asynchronously read statistic registers (cleared by read). 2160 */ 2161 req.bmRequestType = UT_READ_VENDOR_DEVICE; 2162 req.bRequest = RT2573_READ_MULTI_MAC; 2163 USETW(req.wValue, 0); 2164 USETW(req.wIndex, RT2573_STA_CSR0); 2165 USETW(req.wLength, sizeof sc->sta); 2166 2167 usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc, 2168 USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof sc->sta, 0, 2169 rum_amrr_update); 2170 (void)usbd_transfer(sc->amrr_xfer); 2171 2172 splx(s); 2173 } 2174 2175 Static void 2176 rum_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv, 2177 usbd_status status) 2178 { 2179 struct rum_softc *sc = (struct rum_softc *)priv; 2180 struct ifnet *ifp = sc->sc_ic.ic_ifp; 2181 2182 if (status != USBD_NORMAL_COMPLETION) { 2183 printf("%s: could not retrieve Tx statistics - cancelling " 2184 "automatic rate control\n", USBDEVNAME(sc->sc_dev)); 2185 return; 2186 } 2187 2188 /* count TX retry-fail as Tx errors */ 2189 ifp->if_oerrors += le32toh(sc->sta[5]) >> 16; 2190 2191 sc->amn.amn_retrycnt = 2192 (le32toh(sc->sta[4]) >> 16) + /* TX one-retry ok count */ 2193 (le32toh(sc->sta[5]) & 0xffff) + /* TX more-retry ok count */ 2194 (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2195 2196 sc->amn.amn_txcnt = 2197 sc->amn.amn_retrycnt + 2198 (le32toh(sc->sta[4]) & 0xffff); /* TX no-retry ok count */ 2199 2200 ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn); 2201 2202 usb_callout(sc->sc_amrr_ch, hz, rum_amrr_timeout, sc); 2203 } 2204 2205 int 2206 rum_activate(device_ptr_t self, enum devact act) 2207 { 2208 switch (act) { 2209 case DVACT_ACTIVATE: 2210 return EOPNOTSUPP; 2211 2212 case DVACT_DEACTIVATE: 2213 /*if_deactivate(&sc->sc_ic.ic_if);*/ 2214 break; 2215 } 2216 2217 return 0; 2218 } 2219
Indexes created Wed Oct 01 19:09:53 GMT 2025