if_rum.c revision 1.13
1 /* $OpenBSD: if_rum.c,v 1.40 2006/09/18 16:20:20 damien Exp $ */ 2 /* $NetBSD: if_rum.c,v 1.13 2007/07/11 20:13:14 drochner 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 1.13 2007/07/11 20:13:14 drochner 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 73 #include <dev/usb/if_rumreg.h> 74 #include <dev/usb/if_rumvar.h> 75 76 #ifdef USB_DEBUG 77 #define RUM_DEBUG 78 #endif 79 80 #ifdef RUM_DEBUG 81 #define DPRINTF(x) do { if (rum_debug) logprintf x; } while (0) 82 #define DPRINTFN(n, x) do { if (rum_debug >= (n)) logprintf x; } while (0) 83 int rum_debug = 1; 84 #else 85 #define DPRINTF(x) 86 #define DPRINTFN(n, x) 87 #endif 88 89 /* various supported device vendors/products */ 90 static const struct usb_devno rum_devs[] = { 91 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM }, 92 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2 }, 93 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3 }, 94 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4 }, 95 { USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO }, 96 { USB_VENDOR_ASUSTEK, USB_PRODUCT_ASUSTEK_WL167G_2 }, 97 { USB_VENDOR_ASUSTEK, USB_PRODUCT_ASUSTEK_WL167G_3 }, 98 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A }, 99 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3 }, 100 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC }, 101 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR }, 102 { USB_VENDOR_CONCEPTRONIC, USB_PRODUCT_CONCEPTRONIC_C54RU2 }, 103 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F }, 104 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573 }, 105 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1 }, 106 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340 }, 107 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS }, 108 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS }, 109 { USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573 }, 110 { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573 }, 111 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB }, 112 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP }, 113 { USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_RT2573 }, 114 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP }, 115 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP }, 116 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573 }, 117 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2 }, 118 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3 }, 119 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4 }, 120 { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573 }, 121 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP }, 122 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2 }, 123 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM }, 124 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573 }, 125 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2 }, 126 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573 }, 127 { USB_VENDOR_RALINK_2, USB_PRODUCT_RALINK_2_RT2573 }, 128 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671 }, 129 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2 }, 130 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172 }, 131 { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573 } 132 }; 133 134 Static int rum_attachhook(void *); 135 Static int rum_alloc_tx_list(struct rum_softc *); 136 Static void rum_free_tx_list(struct rum_softc *); 137 Static int rum_alloc_rx_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, void *); 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 return (usb_lookup(rum_devs, uaa->vendor, uaa->product) != NULL) ? 244 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 245 } 246 247 Static int 248 rum_attachhook(void *xsc) 249 { 250 struct rum_softc *sc = xsc; 251 firmware_handle_t fwh; 252 const char *name = "rum-rt2573"; 253 u_char *ucode; 254 size_t size; 255 int error; 256 257 if ((error = firmware_open("rum", name, &fwh)) != 0) { 258 printf("%s: failed loadfirmware of file %s (error %d)\n", 259 USBDEVNAME(sc->sc_dev), name, error); 260 return error; 261 } 262 size = firmware_get_size(fwh); 263 ucode = firmware_malloc(size); 264 if (ucode == NULL) { 265 printf("%s: failed to allocate firmware memory\n", 266 USBDEVNAME(sc->sc_dev)); 267 firmware_close(fwh); 268 return ENOMEM;; 269 } 270 error = firmware_read(fwh, 0, ucode, size); 271 firmware_close(fwh); 272 if (error != 0) { 273 printf("%s: failed to read firmware (error %d)\n", 274 USBDEVNAME(sc->sc_dev), error); 275 firmware_free(ucode, 0); 276 return error; 277 } 278 279 if (rum_load_microcode(sc, ucode, size) != 0) { 280 printf("%s: could not load 8051 microcode\n", 281 USBDEVNAME(sc->sc_dev)); 282 firmware_free(ucode, 0); 283 return ENXIO; 284 } 285 286 firmware_free(ucode, 0); 287 sc->sc_flags |= RT2573_FWLOADED; 288 289 return 0; 290 } 291 292 USB_ATTACH(rum) 293 { 294 USB_ATTACH_START(rum, sc, uaa); 295 struct ieee80211com *ic = &sc->sc_ic; 296 struct ifnet *ifp = &sc->sc_if; 297 usb_interface_descriptor_t *id; 298 usb_endpoint_descriptor_t *ed; 299 usbd_status error; 300 char *devinfop; 301 int i, ntries; 302 uint32_t tmp; 303 304 sc->sc_udev = uaa->device; 305 sc->sc_flags = 0; 306 307 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 308 USB_ATTACH_SETUP; 309 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop); 310 usbd_devinfo_free(devinfop); 311 312 if (usbd_set_config_no(sc->sc_udev, RT2573_CONFIG_NO, 0) != 0) { 313 printf("%s: could not set configuration no\n", 314 USBDEVNAME(sc->sc_dev)); 315 USB_ATTACH_ERROR_RETURN; 316 } 317 318 /* get the first interface handle */ 319 error = usbd_device2interface_handle(sc->sc_udev, RT2573_IFACE_INDEX, 320 &sc->sc_iface); 321 if (error != 0) { 322 printf("%s: could not get interface handle\n", 323 USBDEVNAME(sc->sc_dev)); 324 USB_ATTACH_ERROR_RETURN; 325 } 326 327 /* 328 * Find endpoints. 329 */ 330 id = usbd_get_interface_descriptor(sc->sc_iface); 331 332 sc->sc_rx_no = sc->sc_tx_no = -1; 333 for (i = 0; i < id->bNumEndpoints; i++) { 334 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 335 if (ed == NULL) { 336 printf("%s: no endpoint descriptor for iface %d\n", 337 USBDEVNAME(sc->sc_dev), i); 338 USB_ATTACH_ERROR_RETURN; 339 } 340 341 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 342 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 343 sc->sc_rx_no = ed->bEndpointAddress; 344 else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 345 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 346 sc->sc_tx_no = ed->bEndpointAddress; 347 } 348 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) { 349 printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev)); 350 USB_ATTACH_ERROR_RETURN; 351 } 352 353 usb_init_task(&sc->sc_task, rum_task, sc); 354 usb_callout_init(sc->sc_scan_ch); 355 356 sc->amrr.amrr_min_success_threshold = 1; 357 sc->amrr.amrr_max_success_threshold = 10; 358 usb_callout_init(sc->sc_amrr_ch); 359 360 /* retrieve RT2573 rev. no */ 361 for (ntries = 0; ntries < 1000; ntries++) { 362 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 363 break; 364 DELAY(1000); 365 } 366 if (ntries == 1000) { 367 printf("%s: timeout waiting for chip to settle\n", 368 USBDEVNAME(sc->sc_dev)); 369 USB_ATTACH_ERROR_RETURN; 370 } 371 372 /* retrieve MAC address and various other things from EEPROM */ 373 rum_read_eeprom(sc); 374 375 printf("%s: MAC/BBP RT%04x (rev 0x%05x), RF %s, address %s\n", 376 USBDEVNAME(sc->sc_dev), sc->macbbp_rev, tmp, 377 rum_get_rf(sc->rf_rev), ether_sprintf(ic->ic_myaddr)); 378 379 ic->ic_ifp = ifp; 380 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 381 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 382 ic->ic_state = IEEE80211_S_INIT; 383 384 /* set device capabilities */ 385 ic->ic_caps = 386 IEEE80211_C_IBSS | /* IBSS mode supported */ 387 IEEE80211_C_MONITOR | /* monitor mode supported */ 388 IEEE80211_C_HOSTAP | /* HostAp mode supported */ 389 IEEE80211_C_TXPMGT | /* tx power management */ 390 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 391 IEEE80211_C_SHSLOT | /* short slot time supported */ 392 IEEE80211_C_WPA; /* 802.11i */ 393 394 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) { 395 /* set supported .11a rates */ 396 ic->ic_sup_rates[IEEE80211_MODE_11A] = rum_rateset_11a; 397 398 /* set supported .11a channels */ 399 for (i = 34; i <= 46; i += 4) { 400 ic->ic_channels[i].ic_freq = 401 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 402 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 403 } 404 for (i = 36; i <= 64; i += 4) { 405 ic->ic_channels[i].ic_freq = 406 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 407 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 408 } 409 for (i = 100; i <= 140; i += 4) { 410 ic->ic_channels[i].ic_freq = 411 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 412 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 413 } 414 for (i = 149; i <= 165; i += 4) { 415 ic->ic_channels[i].ic_freq = 416 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 417 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 418 } 419 } 420 421 /* set supported .11b and .11g rates */ 422 ic->ic_sup_rates[IEEE80211_MODE_11B] = rum_rateset_11b; 423 ic->ic_sup_rates[IEEE80211_MODE_11G] = rum_rateset_11g; 424 425 /* set supported .11b and .11g channels (1 through 14) */ 426 for (i = 1; i <= 14; i++) { 427 ic->ic_channels[i].ic_freq = 428 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 429 ic->ic_channels[i].ic_flags = 430 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 431 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 432 } 433 434 ifp->if_softc = sc; 435 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 436 ifp->if_init = rum_init; 437 ifp->if_ioctl = rum_ioctl; 438 ifp->if_start = rum_start; 439 ifp->if_watchdog = rum_watchdog; 440 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 441 IFQ_SET_READY(&ifp->if_snd); 442 memcpy(ifp->if_xname, USBDEVNAME(sc->sc_dev), IFNAMSIZ); 443 444 if_attach(ifp); 445 ieee80211_ifattach(ic); 446 447 /* override state transition machine */ 448 sc->sc_newstate = ic->ic_newstate; 449 ic->ic_newstate = rum_newstate; 450 ieee80211_media_init(ic, rum_media_change, ieee80211_media_status); 451 452 #if NBPFILTER > 0 453 bpfattach2(ifp, DLT_IEEE802_11_RADIO, 454 sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, &sc->sc_drvbpf); 455 456 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 457 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 458 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT); 459 460 sc->sc_txtap_len = sizeof sc->sc_txtapu; 461 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 462 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT); 463 #endif 464 465 ieee80211_announce(ic); 466 467 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 468 USBDEV(sc->sc_dev)); 469 470 USB_ATTACH_SUCCESS_RETURN; 471 } 472 473 USB_DETACH(rum) 474 { 475 USB_DETACH_START(rum, sc); 476 struct ieee80211com *ic = &sc->sc_ic; 477 struct ifnet *ifp = &sc->sc_if; 478 int s; 479 480 if (!ifp->if_softc) 481 return 0; 482 483 s = splusb(); 484 485 rum_stop(ifp, 1); 486 usb_rem_task(sc->sc_udev, &sc->sc_task); 487 usb_uncallout(sc->sc_scan_ch, rum_next_scan, sc); 488 usb_uncallout(sc->sc_amrr_ch, rum_amrr_timeout, sc); 489 490 if (sc->amrr_xfer != NULL) { 491 usbd_free_xfer(sc->amrr_xfer); 492 sc->amrr_xfer = NULL; 493 } 494 495 if (sc->sc_rx_pipeh != NULL) { 496 usbd_abort_pipe(sc->sc_rx_pipeh); 497 usbd_close_pipe(sc->sc_rx_pipeh); 498 } 499 500 if (sc->sc_tx_pipeh != NULL) { 501 usbd_abort_pipe(sc->sc_tx_pipeh); 502 usbd_close_pipe(sc->sc_tx_pipeh); 503 } 504 505 rum_free_rx_list(sc); 506 rum_free_tx_list(sc); 507 508 #if NBPFILTER > 0 509 bpfdetach(ifp); 510 #endif 511 ieee80211_ifdetach(ic); /* free all nodes */ 512 if_detach(ifp); 513 514 splx(s); 515 516 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 517 USBDEV(sc->sc_dev)); 518 519 return 0; 520 } 521 522 Static int 523 rum_alloc_tx_list(struct rum_softc *sc) 524 { 525 struct rum_tx_data *data; 526 int i, error; 527 528 sc->tx_queued = 0; 529 530 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) { 531 data = &sc->tx_data[i]; 532 533 data->sc = sc; 534 535 data->xfer = usbd_alloc_xfer(sc->sc_udev); 536 if (data->xfer == NULL) { 537 printf("%s: could not allocate tx xfer\n", 538 USBDEVNAME(sc->sc_dev)); 539 error = ENOMEM; 540 goto fail; 541 } 542 543 data->buf = usbd_alloc_buffer(data->xfer, 544 RT2573_TX_DESC_SIZE + MCLBYTES); 545 if (data->buf == NULL) { 546 printf("%s: could not allocate tx buffer\n", 547 USBDEVNAME(sc->sc_dev)); 548 error = ENOMEM; 549 goto fail; 550 } 551 552 /* clean Tx descriptor */ 553 bzero(data->buf, RT2573_TX_DESC_SIZE); 554 } 555 556 return 0; 557 558 fail: rum_free_tx_list(sc); 559 return error; 560 } 561 562 Static void 563 rum_free_tx_list(struct rum_softc *sc) 564 { 565 struct rum_tx_data *data; 566 int i; 567 568 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) { 569 data = &sc->tx_data[i]; 570 571 if (data->xfer != NULL) { 572 usbd_free_xfer(data->xfer); 573 data->xfer = NULL; 574 } 575 576 if (data->ni != NULL) { 577 ieee80211_free_node(data->ni); 578 data->ni = NULL; 579 } 580 } 581 } 582 583 Static int 584 rum_alloc_rx_list(struct rum_softc *sc) 585 { 586 struct rum_rx_data *data; 587 int i, error; 588 589 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) { 590 data = &sc->rx_data[i]; 591 592 data->sc = sc; 593 594 data->xfer = usbd_alloc_xfer(sc->sc_udev); 595 if (data->xfer == NULL) { 596 printf("%s: could not allocate rx xfer\n", 597 USBDEVNAME(sc->sc_dev)); 598 error = ENOMEM; 599 goto fail; 600 } 601 602 if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) { 603 printf("%s: could not allocate rx buffer\n", 604 USBDEVNAME(sc->sc_dev)); 605 error = ENOMEM; 606 goto fail; 607 } 608 609 MGETHDR(data->m, M_DONTWAIT, MT_DATA); 610 if (data->m == NULL) { 611 printf("%s: could not allocate rx mbuf\n", 612 USBDEVNAME(sc->sc_dev)); 613 error = ENOMEM; 614 goto fail; 615 } 616 617 MCLGET(data->m, M_DONTWAIT); 618 if (!(data->m->m_flags & M_EXT)) { 619 printf("%s: could not allocate rx mbuf cluster\n", 620 USBDEVNAME(sc->sc_dev)); 621 error = ENOMEM; 622 goto fail; 623 } 624 625 data->buf = mtod(data->m, uint8_t *); 626 } 627 628 return 0; 629 630 fail: rum_free_tx_list(sc); 631 return error; 632 } 633 634 Static void 635 rum_free_rx_list(struct rum_softc *sc) 636 { 637 struct rum_rx_data *data; 638 int i; 639 640 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) { 641 data = &sc->rx_data[i]; 642 643 if (data->xfer != NULL) { 644 usbd_free_xfer(data->xfer); 645 data->xfer = NULL; 646 } 647 648 if (data->m != NULL) { 649 m_freem(data->m); 650 data->m = NULL; 651 } 652 } 653 } 654 655 Static int 656 rum_media_change(struct ifnet *ifp) 657 { 658 int error; 659 660 error = ieee80211_media_change(ifp); 661 if (error != ENETRESET) 662 return error; 663 664 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 665 rum_init(ifp); 666 667 return 0; 668 } 669 670 /* 671 * This function is called periodically (every 200ms) during scanning to 672 * switch from one channel to another. 673 */ 674 Static void 675 rum_next_scan(void *arg) 676 { 677 struct rum_softc *sc = arg; 678 struct ieee80211com *ic = &sc->sc_ic; 679 680 if (ic->ic_state == IEEE80211_S_SCAN) 681 ieee80211_next_scan(ic); 682 } 683 684 Static void 685 rum_task(void *arg) 686 { 687 struct rum_softc *sc = arg; 688 struct ieee80211com *ic = &sc->sc_ic; 689 enum ieee80211_state ostate; 690 struct ieee80211_node *ni; 691 uint32_t tmp; 692 693 ostate = ic->ic_state; 694 695 switch (sc->sc_state) { 696 case IEEE80211_S_INIT: 697 if (ostate == IEEE80211_S_RUN) { 698 /* abort TSF synchronization */ 699 tmp = rum_read(sc, RT2573_TXRX_CSR9); 700 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 701 } 702 break; 703 704 case IEEE80211_S_SCAN: 705 rum_set_chan(sc, ic->ic_curchan); 706 usb_callout(sc->sc_scan_ch, hz / 5, rum_next_scan, sc); 707 break; 708 709 case IEEE80211_S_AUTH: 710 rum_set_chan(sc, ic->ic_curchan); 711 break; 712 713 case IEEE80211_S_ASSOC: 714 rum_set_chan(sc, ic->ic_curchan); 715 break; 716 717 case IEEE80211_S_RUN: 718 rum_set_chan(sc, ic->ic_curchan); 719 720 ni = ic->ic_bss; 721 722 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 723 rum_update_slot(sc); 724 rum_enable_mrr(sc); 725 rum_set_txpreamble(sc); 726 rum_set_basicrates(sc); 727 rum_set_bssid(sc, ni->ni_bssid); 728 } 729 730 if (ic->ic_opmode == IEEE80211_M_HOSTAP || 731 ic->ic_opmode == IEEE80211_M_IBSS) 732 rum_prepare_beacon(sc); 733 734 if (ic->ic_opmode != IEEE80211_M_MONITOR) 735 rum_enable_tsf_sync(sc); 736 737 /* enable automatic rate adaptation in STA mode */ 738 if (ic->ic_opmode == IEEE80211_M_STA && 739 ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 740 rum_amrr_start(sc, ni); 741 742 break; 743 } 744 745 sc->sc_newstate(ic, sc->sc_state, -1); 746 } 747 748 Static int 749 rum_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 750 { 751 struct rum_softc *sc = ic->ic_ifp->if_softc; 752 753 usb_rem_task(sc->sc_udev, &sc->sc_task); 754 usb_uncallout(sc->sc_scan_ch, rum_next_scan, sc); 755 usb_uncallout(sc->sc_amrr_ch, rum_amrr_timeout, sc); 756 757 /* do it in a process context */ 758 sc->sc_state = nstate; 759 usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER); 760 761 return 0; 762 } 763 764 /* quickly determine if a given rate is CCK or OFDM */ 765 #define RUM_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 766 767 #define RUM_ACK_SIZE 14 /* 10 + 4(FCS) */ 768 #define RUM_CTS_SIZE 14 /* 10 + 4(FCS) */ 769 770 Static void 771 rum_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 772 { 773 struct rum_tx_data *data = priv; 774 struct rum_softc *sc = data->sc; 775 struct ifnet *ifp = &sc->sc_if; 776 int s; 777 778 if (status != USBD_NORMAL_COMPLETION) { 779 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 780 return; 781 782 printf("%s: could not transmit buffer: %s\n", 783 USBDEVNAME(sc->sc_dev), usbd_errstr(status)); 784 785 if (status == USBD_STALLED) 786 usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh); 787 788 ifp->if_oerrors++; 789 return; 790 } 791 792 s = splnet(); 793 794 m_freem(data->m); 795 data->m = NULL; 796 ieee80211_free_node(data->ni); 797 data->ni = NULL; 798 799 sc->tx_queued--; 800 ifp->if_opackets++; 801 802 DPRINTFN(10, ("tx done\n")); 803 804 sc->sc_tx_timer = 0; 805 ifp->if_flags &= ~IFF_OACTIVE; 806 rum_start(ifp); 807 808 splx(s); 809 } 810 811 Static void 812 rum_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 813 { 814 struct rum_rx_data *data = priv; 815 struct rum_softc *sc = data->sc; 816 struct ieee80211com *ic = &sc->sc_ic; 817 struct ifnet *ifp = &sc->sc_if; 818 struct rum_rx_desc *desc; 819 struct ieee80211_frame *wh; 820 struct ieee80211_node *ni; 821 struct mbuf *mnew, *m; 822 int s, len; 823 824 if (status != USBD_NORMAL_COMPLETION) { 825 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 826 return; 827 828 if (status == USBD_STALLED) 829 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh); 830 goto skip; 831 } 832 833 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 834 835 if (len < RT2573_RX_DESC_SIZE + sizeof (struct ieee80211_frame_min)) { 836 DPRINTF(("%s: xfer too short %d\n", USBDEVNAME(sc->sc_dev), 837 len)); 838 ifp->if_ierrors++; 839 goto skip; 840 } 841 842 desc = (struct rum_rx_desc *)data->buf; 843 844 if (le32toh(desc->flags) & RT2573_RX_CRC_ERROR) { 845 /* 846 * This should not happen since we did not request to receive 847 * those frames when we filled RT2573_TXRX_CSR0. 848 */ 849 DPRINTFN(5, ("CRC error\n")); 850 ifp->if_ierrors++; 851 goto skip; 852 } 853 854 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 855 if (mnew == NULL) { 856 printf("%s: could not allocate rx mbuf\n", 857 USBDEVNAME(sc->sc_dev)); 858 ifp->if_ierrors++; 859 goto skip; 860 } 861 862 MCLGET(mnew, M_DONTWAIT); 863 if (!(mnew->m_flags & M_EXT)) { 864 printf("%s: could not allocate rx mbuf cluster\n", 865 USBDEVNAME(sc->sc_dev)); 866 m_freem(mnew); 867 ifp->if_ierrors++; 868 goto skip; 869 } 870 871 m = data->m; 872 data->m = mnew; 873 data->buf = mtod(data->m, uint8_t *); 874 875 /* finalize mbuf */ 876 m->m_pkthdr.rcvif = ifp; 877 m->m_data = (void *)(desc + 1); 878 m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff; 879 880 s = splnet(); 881 882 #if NBPFILTER > 0 883 if (sc->sc_drvbpf != NULL) { 884 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 885 886 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 887 tap->wr_rate = rum_rxrate(desc); 888 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 889 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 890 tap->wr_antenna = sc->rx_ant; 891 tap->wr_antsignal = desc->rssi; 892 893 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 894 } 895 #endif 896 897 wh = mtod(m, struct ieee80211_frame *); 898 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 899 900 /* send the frame to the 802.11 layer */ 901 ieee80211_input(ic, m, ni, desc->rssi, 0); 902 903 /* node is no longer needed */ 904 ieee80211_free_node(ni); 905 906 splx(s); 907 908 DPRINTFN(15, ("rx done\n")); 909 910 skip: /* setup a new transfer */ 911 usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES, 912 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof); 913 usbd_transfer(xfer); 914 } 915 916 /* 917 * This function is only used by the Rx radiotap code. It returns the rate at 918 * which a given frame was received. 919 */ 920 #if NBPFILTER > 0 921 Static uint8_t 922 rum_rxrate(struct rum_rx_desc *desc) 923 { 924 if (le32toh(desc->flags) & RT2573_RX_OFDM) { 925 /* reverse function of rum_plcp_signal */ 926 switch (desc->rate) { 927 case 0xb: return 12; 928 case 0xf: return 18; 929 case 0xa: return 24; 930 case 0xe: return 36; 931 case 0x9: return 48; 932 case 0xd: return 72; 933 case 0x8: return 96; 934 case 0xc: return 108; 935 } 936 } else { 937 if (desc->rate == 10) 938 return 2; 939 if (desc->rate == 20) 940 return 4; 941 if (desc->rate == 55) 942 return 11; 943 if (desc->rate == 110) 944 return 22; 945 } 946 return 2; /* should not get there */ 947 } 948 #endif 949 950 /* 951 * Return the expected ack rate for a frame transmitted at rate `rate'. 952 * XXX: this should depend on the destination node basic rate set. 953 */ 954 Static int 955 rum_ack_rate(struct ieee80211com *ic, int rate) 956 { 957 switch (rate) { 958 /* CCK rates */ 959 case 2: 960 return 2; 961 case 4: 962 case 11: 963 case 22: 964 return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate; 965 966 /* OFDM rates */ 967 case 12: 968 case 18: 969 return 12; 970 case 24: 971 case 36: 972 return 24; 973 case 48: 974 case 72: 975 case 96: 976 case 108: 977 return 48; 978 } 979 980 /* default to 1Mbps */ 981 return 2; 982 } 983 984 /* 985 * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'. 986 * The function automatically determines the operating mode depending on the 987 * given rate. `flags' indicates whether short preamble is in use or not. 988 */ 989 Static uint16_t 990 rum_txtime(int len, int rate, uint32_t flags) 991 { 992 uint16_t txtime; 993 994 if (RUM_RATE_IS_OFDM(rate)) { 995 /* IEEE Std 802.11a-1999, pp. 37 */ 996 txtime = (8 + 4 * len + 3 + rate - 1) / rate; 997 txtime = 16 + 4 + 4 * txtime + 6; 998 } else { 999 /* IEEE Std 802.11b-1999, pp. 28 */ 1000 txtime = (16 * len + rate - 1) / rate; 1001 if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE)) 1002 txtime += 72 + 24; 1003 else 1004 txtime += 144 + 48; 1005 } 1006 return txtime; 1007 } 1008 1009 Static uint8_t 1010 rum_plcp_signal(int rate) 1011 { 1012 switch (rate) { 1013 /* CCK rates (returned values are device-dependent) */ 1014 case 2: return 0x0; 1015 case 4: return 0x1; 1016 case 11: return 0x2; 1017 case 22: return 0x3; 1018 1019 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1020 case 12: return 0xb; 1021 case 18: return 0xf; 1022 case 24: return 0xa; 1023 case 36: return 0xe; 1024 case 48: return 0x9; 1025 case 72: return 0xd; 1026 case 96: return 0x8; 1027 case 108: return 0xc; 1028 1029 /* unsupported rates (should not get there) */ 1030 default: return 0xff; 1031 } 1032 } 1033 1034 Static void 1035 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1036 uint32_t flags, uint16_t xflags, int len, int rate) 1037 { 1038 struct ieee80211com *ic = &sc->sc_ic; 1039 uint16_t plcp_length; 1040 int remainder; 1041 1042 desc->flags = htole32(flags); 1043 desc->flags |= htole32(RT2573_TX_VALID); 1044 desc->flags |= htole32(len << 16); 1045 1046 desc->xflags = htole16(xflags); 1047 1048 desc->wme = htole16( 1049 RT2573_QID(0) | 1050 RT2573_AIFSN(2) | 1051 RT2573_LOGCWMIN(4) | 1052 RT2573_LOGCWMAX(10)); 1053 1054 /* setup PLCP fields */ 1055 desc->plcp_signal = rum_plcp_signal(rate); 1056 desc->plcp_service = 4; 1057 1058 len += IEEE80211_CRC_LEN; 1059 if (RUM_RATE_IS_OFDM(rate)) { 1060 desc->flags |= htole32(RT2573_TX_OFDM); 1061 1062 plcp_length = len & 0xfff; 1063 desc->plcp_length_hi = plcp_length >> 6; 1064 desc->plcp_length_lo = plcp_length & 0x3f; 1065 } else { 1066 plcp_length = (16 * len + rate - 1) / rate; 1067 if (rate == 22) { 1068 remainder = (16 * len) % 22; 1069 if (remainder != 0 && remainder < 7) 1070 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1071 } 1072 desc->plcp_length_hi = plcp_length >> 8; 1073 desc->plcp_length_lo = plcp_length & 0xff; 1074 1075 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1076 desc->plcp_signal |= 0x08; 1077 } 1078 } 1079 1080 #define RUM_TX_TIMEOUT 5000 1081 1082 Static int 1083 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1084 { 1085 struct ieee80211com *ic = &sc->sc_ic; 1086 struct rum_tx_desc *desc; 1087 struct rum_tx_data *data; 1088 struct ieee80211_frame *wh; 1089 uint32_t flags = 0; 1090 uint16_t dur; 1091 usbd_status error; 1092 int xferlen, rate; 1093 1094 data = &sc->tx_data[0]; 1095 desc = (struct rum_tx_desc *)data->buf; 1096 1097 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; 1098 1099 data->m = m0; 1100 data->ni = ni; 1101 1102 wh = mtod(m0, struct ieee80211_frame *); 1103 1104 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1105 flags |= RT2573_TX_ACK; 1106 1107 dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate), 1108 ic->ic_flags) + sc->sifs; 1109 *(uint16_t *)wh->i_dur = htole16(dur); 1110 1111 /* tell hardware to set timestamp in probe responses */ 1112 if ((wh->i_fc[0] & 1113 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1114 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1115 flags |= RT2573_TX_TIMESTAMP; 1116 } 1117 1118 #if NBPFILTER > 0 1119 if (sc->sc_drvbpf != NULL) { 1120 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1121 1122 tap->wt_flags = 0; 1123 tap->wt_rate = rate; 1124 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1125 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1126 tap->wt_antenna = sc->tx_ant; 1127 1128 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1129 } 1130 #endif 1131 1132 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE); 1133 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate); 1134 1135 /* align end on a 4-bytes boundary */ 1136 xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3; 1137 1138 /* 1139 * No space left in the last URB to store the extra 4 bytes, force 1140 * sending of another URB. 1141 */ 1142 if ((xferlen % 64) == 0) 1143 xferlen += 4; 1144 1145 DPRINTFN(10, ("sending msg frame len=%zu rate=%u xfer len=%u\n", 1146 (size_t)m0->m_pkthdr.len + RT2573_TX_DESC_SIZE, 1147 rate, xferlen)); 1148 1149 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen, 1150 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof); 1151 1152 error = usbd_transfer(data->xfer); 1153 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1154 m_freem(m0); 1155 return error; 1156 } 1157 1158 sc->tx_queued++; 1159 1160 return 0; 1161 } 1162 1163 Static int 1164 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1165 { 1166 struct ieee80211com *ic = &sc->sc_ic; 1167 struct rum_tx_desc *desc; 1168 struct rum_tx_data *data; 1169 struct ieee80211_frame *wh; 1170 struct ieee80211_key *k; 1171 uint32_t flags = 0; 1172 uint16_t dur; 1173 usbd_status error; 1174 int xferlen, rate; 1175 1176 wh = mtod(m0, struct ieee80211_frame *); 1177 1178 if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE) 1179 rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_fixed_rate]; 1180 else 1181 rate = ni->ni_rates.rs_rates[ni->ni_txrate]; 1182 rate &= IEEE80211_RATE_VAL; 1183 1184 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1185 k = ieee80211_crypto_encap(ic, ni, m0); 1186 if (k == NULL) { 1187 m_freem(m0); 1188 return ENOBUFS; 1189 } 1190 1191 /* packet header may have moved, reset our local pointer */ 1192 wh = mtod(m0, struct ieee80211_frame *); 1193 } 1194 1195 data = &sc->tx_data[0]; 1196 desc = (struct rum_tx_desc *)data->buf; 1197 1198 data->m = m0; 1199 data->ni = ni; 1200 1201 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1202 flags |= RT2573_TX_ACK; 1203 1204 dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate), 1205 ic->ic_flags) + sc->sifs; 1206 *(uint16_t *)wh->i_dur = htole16(dur); 1207 } 1208 1209 #if NBPFILTER > 0 1210 if (sc->sc_drvbpf != NULL) { 1211 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1212 1213 tap->wt_flags = 0; 1214 tap->wt_rate = rate; 1215 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1216 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1217 tap->wt_antenna = sc->tx_ant; 1218 1219 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1220 } 1221 #endif 1222 1223 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE); 1224 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate); 1225 1226 /* align end on a 4-bytes boundary */ 1227 xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3; 1228 1229 /* 1230 * No space left in the last URB to store the extra 4 bytes, force 1231 * sending of another URB. 1232 */ 1233 if ((xferlen % 64) == 0) 1234 xferlen += 4; 1235 1236 DPRINTFN(10, ("sending data frame len=%zu rate=%u xfer len=%u\n", 1237 (size_t)m0->m_pkthdr.len + RT2573_TX_DESC_SIZE, 1238 rate, xferlen)); 1239 1240 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen, 1241 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof); 1242 1243 error = usbd_transfer(data->xfer); 1244 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 1245 m_freem(m0); 1246 return error; 1247 } 1248 1249 sc->tx_queued++; 1250 1251 return 0; 1252 } 1253 1254 Static void 1255 rum_start(struct ifnet *ifp) 1256 { 1257 struct rum_softc *sc = ifp->if_softc; 1258 struct ieee80211com *ic = &sc->sc_ic; 1259 struct ether_header *eh; 1260 struct ieee80211_node *ni; 1261 struct mbuf *m0; 1262 1263 for (;;) { 1264 IF_POLL(&ic->ic_mgtq, m0); 1265 if (m0 != NULL) { 1266 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) { 1267 ifp->if_flags |= IFF_OACTIVE; 1268 break; 1269 } 1270 IF_DEQUEUE(&ic->ic_mgtq, m0); 1271 1272 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 1273 m0->m_pkthdr.rcvif = NULL; 1274 #if NBPFILTER > 0 1275 if (ic->ic_rawbpf != NULL) 1276 bpf_mtap(ic->ic_rawbpf, m0); 1277 #endif 1278 if (rum_tx_mgt(sc, m0, ni) != 0) 1279 break; 1280 1281 } else { 1282 if (ic->ic_state != IEEE80211_S_RUN) 1283 break; 1284 IFQ_POLL(&ifp->if_snd, m0); 1285 if (m0 == NULL) 1286 break; 1287 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) { 1288 ifp->if_flags |= IFF_OACTIVE; 1289 break; 1290 } 1291 IFQ_DEQUEUE(&ifp->if_snd, m0); 1292 if (m0->m_len < sizeof(struct ether_header) && 1293 !(m0 = m_pullup(m0, sizeof(struct ether_header)))) 1294 continue; 1295 1296 eh = mtod(m0, struct ether_header *); 1297 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1298 if (ni == NULL) { 1299 m_freem(m0); 1300 continue; 1301 } 1302 #if NBPFILTER > 0 1303 if (ifp->if_bpf != NULL) 1304 bpf_mtap(ifp->if_bpf, m0); 1305 #endif 1306 m0 = ieee80211_encap(ic, m0, ni); 1307 if (m0 == NULL) { 1308 ieee80211_free_node(ni); 1309 continue; 1310 } 1311 #if NBPFILTER > 0 1312 if (ic->ic_rawbpf != NULL) 1313 bpf_mtap(ic->ic_rawbpf, m0); 1314 #endif 1315 if (rum_tx_data(sc, m0, ni) != 0) { 1316 ieee80211_free_node(ni); 1317 ifp->if_oerrors++; 1318 break; 1319 } 1320 } 1321 1322 sc->sc_tx_timer = 5; 1323 ifp->if_timer = 1; 1324 } 1325 } 1326 1327 Static void 1328 rum_watchdog(struct ifnet *ifp) 1329 { 1330 struct rum_softc *sc = ifp->if_softc; 1331 struct ieee80211com *ic = &sc->sc_ic; 1332 1333 ifp->if_timer = 0; 1334 1335 if (sc->sc_tx_timer > 0) { 1336 if (--sc->sc_tx_timer == 0) { 1337 printf("%s: device timeout\n", USBDEVNAME(sc->sc_dev)); 1338 /*rum_init(ifp); XXX needs a process context! */ 1339 ifp->if_oerrors++; 1340 return; 1341 } 1342 ifp->if_timer = 1; 1343 } 1344 1345 ieee80211_watchdog(ic); 1346 } 1347 1348 Static int 1349 rum_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1350 { 1351 struct rum_softc *sc = ifp->if_softc; 1352 struct ieee80211com *ic = &sc->sc_ic; 1353 int s, error = 0; 1354 1355 s = splnet(); 1356 1357 switch (cmd) { 1358 case SIOCSIFFLAGS: 1359 if (ifp->if_flags & IFF_UP) { 1360 if (ifp->if_flags & IFF_RUNNING) 1361 rum_update_promisc(sc); 1362 else 1363 rum_init(ifp); 1364 } else { 1365 if (ifp->if_flags & IFF_RUNNING) 1366 rum_stop(ifp, 1); 1367 } 1368 break; 1369 1370 default: 1371 error = ieee80211_ioctl(ic, cmd, data); 1372 } 1373 1374 if (error == ENETRESET) { 1375 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1376 (IFF_UP | IFF_RUNNING)) 1377 rum_init(ifp); 1378 error = 0; 1379 } 1380 1381 splx(s); 1382 1383 return error; 1384 } 1385 1386 Static void 1387 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1388 { 1389 usb_device_request_t req; 1390 usbd_status error; 1391 1392 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1393 req.bRequest = RT2573_READ_EEPROM; 1394 USETW(req.wValue, 0); 1395 USETW(req.wIndex, addr); 1396 USETW(req.wLength, len); 1397 1398 error = usbd_do_request(sc->sc_udev, &req, buf); 1399 if (error != 0) { 1400 printf("%s: could not read EEPROM: %s\n", 1401 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 1402 } 1403 } 1404 1405 Static uint32_t 1406 rum_read(struct rum_softc *sc, uint16_t reg) 1407 { 1408 uint32_t val; 1409 1410 rum_read_multi(sc, reg, &val, sizeof val); 1411 1412 return le32toh(val); 1413 } 1414 1415 Static void 1416 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1417 { 1418 usb_device_request_t req; 1419 usbd_status error; 1420 1421 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1422 req.bRequest = RT2573_READ_MULTI_MAC; 1423 USETW(req.wValue, 0); 1424 USETW(req.wIndex, reg); 1425 USETW(req.wLength, len); 1426 1427 error = usbd_do_request(sc->sc_udev, &req, buf); 1428 if (error != 0) { 1429 printf("%s: could not multi read MAC register: %s\n", 1430 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 1431 } 1432 } 1433 1434 Static void 1435 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1436 { 1437 uint32_t tmp = htole32(val); 1438 1439 rum_write_multi(sc, reg, &tmp, sizeof tmp); 1440 } 1441 1442 Static void 1443 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1444 { 1445 usb_device_request_t req; 1446 usbd_status error; 1447 1448 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1449 req.bRequest = RT2573_WRITE_MULTI_MAC; 1450 USETW(req.wValue, 0); 1451 USETW(req.wIndex, reg); 1452 USETW(req.wLength, len); 1453 1454 error = usbd_do_request(sc->sc_udev, &req, buf); 1455 if (error != 0) { 1456 printf("%s: could not multi write MAC register: %s\n", 1457 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 1458 } 1459 } 1460 1461 Static void 1462 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1463 { 1464 uint32_t tmp; 1465 int ntries; 1466 1467 for (ntries = 0; ntries < 5; ntries++) { 1468 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1469 break; 1470 } 1471 if (ntries == 5) { 1472 printf("%s: could not write to BBP\n", USBDEVNAME(sc->sc_dev)); 1473 return; 1474 } 1475 1476 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1477 rum_write(sc, RT2573_PHY_CSR3, tmp); 1478 } 1479 1480 Static uint8_t 1481 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1482 { 1483 uint32_t val; 1484 int ntries; 1485 1486 for (ntries = 0; ntries < 5; ntries++) { 1487 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1488 break; 1489 } 1490 if (ntries == 5) { 1491 printf("%s: could not read BBP\n", USBDEVNAME(sc->sc_dev)); 1492 return 0; 1493 } 1494 1495 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1496 rum_write(sc, RT2573_PHY_CSR3, val); 1497 1498 for (ntries = 0; ntries < 100; ntries++) { 1499 val = rum_read(sc, RT2573_PHY_CSR3); 1500 if (!(val & RT2573_BBP_BUSY)) 1501 return val & 0xff; 1502 DELAY(1); 1503 } 1504 1505 printf("%s: could not read BBP\n", USBDEVNAME(sc->sc_dev)); 1506 return 0; 1507 } 1508 1509 Static void 1510 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1511 { 1512 uint32_t tmp; 1513 int ntries; 1514 1515 for (ntries = 0; ntries < 5; ntries++) { 1516 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1517 break; 1518 } 1519 if (ntries == 5) { 1520 printf("%s: could not write to RF\n", USBDEVNAME(sc->sc_dev)); 1521 return; 1522 } 1523 1524 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1525 (reg & 3); 1526 rum_write(sc, RT2573_PHY_CSR4, tmp); 1527 1528 /* remember last written value in sc */ 1529 sc->rf_regs[reg] = val; 1530 1531 DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff)); 1532 } 1533 1534 Static void 1535 rum_select_antenna(struct rum_softc *sc) 1536 { 1537 uint8_t bbp4, bbp77; 1538 uint32_t tmp; 1539 1540 bbp4 = rum_bbp_read(sc, 4); 1541 bbp77 = rum_bbp_read(sc, 77); 1542 1543 /* TBD */ 1544 1545 /* make sure Rx is disabled before switching antenna */ 1546 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1547 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1548 1549 rum_bbp_write(sc, 4, bbp4); 1550 rum_bbp_write(sc, 77, bbp77); 1551 1552 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1553 } 1554 1555 /* 1556 * Enable multi-rate retries for frames sent at OFDM rates. 1557 * In 802.11b/g mode, allow fallback to CCK rates. 1558 */ 1559 Static void 1560 rum_enable_mrr(struct rum_softc *sc) 1561 { 1562 struct ieee80211com *ic = &sc->sc_ic; 1563 uint32_t tmp; 1564 1565 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1566 1567 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1568 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) 1569 tmp |= RT2573_MRR_CCK_FALLBACK; 1570 tmp |= RT2573_MRR_ENABLED; 1571 1572 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1573 } 1574 1575 Static void 1576 rum_set_txpreamble(struct rum_softc *sc) 1577 { 1578 uint32_t tmp; 1579 1580 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1581 1582 tmp &= ~RT2573_SHORT_PREAMBLE; 1583 if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE) 1584 tmp |= RT2573_SHORT_PREAMBLE; 1585 1586 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1587 } 1588 1589 Static void 1590 rum_set_basicrates(struct rum_softc *sc) 1591 { 1592 struct ieee80211com *ic = &sc->sc_ic; 1593 1594 /* update basic rate set */ 1595 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1596 /* 11b basic rates: 1, 2Mbps */ 1597 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1598 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) { 1599 /* 11a basic rates: 6, 12, 24Mbps */ 1600 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1601 } else { 1602 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */ 1603 rum_write(sc, RT2573_TXRX_CSR5, 0x15f); 1604 } 1605 } 1606 1607 /* 1608 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1609 * driver. 1610 */ 1611 Static void 1612 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1613 { 1614 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1615 uint32_t tmp; 1616 1617 /* update all BBP registers that depend on the band */ 1618 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1619 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1620 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1621 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1622 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1623 } 1624 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1625 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1626 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1627 } 1628 1629 sc->bbp17 = bbp17; 1630 rum_bbp_write(sc, 17, bbp17); 1631 rum_bbp_write(sc, 96, bbp96); 1632 rum_bbp_write(sc, 104, bbp104); 1633 1634 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1635 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1636 rum_bbp_write(sc, 75, 0x80); 1637 rum_bbp_write(sc, 86, 0x80); 1638 rum_bbp_write(sc, 88, 0x80); 1639 } 1640 1641 rum_bbp_write(sc, 35, bbp35); 1642 rum_bbp_write(sc, 97, bbp97); 1643 rum_bbp_write(sc, 98, bbp98); 1644 1645 tmp = rum_read(sc, RT2573_PHY_CSR0); 1646 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1647 if (IEEE80211_IS_CHAN_2GHZ(c)) 1648 tmp |= RT2573_PA_PE_2GHZ; 1649 else 1650 tmp |= RT2573_PA_PE_5GHZ; 1651 rum_write(sc, RT2573_PHY_CSR0, tmp); 1652 1653 /* 802.11a uses a 16 microseconds short interframe space */ 1654 sc->sifs = IEEE80211_IS_CHAN_5GHZ(c) ? 16 : 10; 1655 } 1656 1657 Static void 1658 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1659 { 1660 struct ieee80211com *ic = &sc->sc_ic; 1661 const struct rfprog *rfprog; 1662 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1663 int8_t power; 1664 u_int i, chan; 1665 1666 chan = ieee80211_chan2ieee(ic, c); 1667 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1668 return; 1669 1670 /* select the appropriate RF settings based on what EEPROM says */ 1671 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1672 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1673 1674 /* find the settings for this channel (we know it exists) */ 1675 for (i = 0; rfprog[i].chan != chan; i++); 1676 1677 power = sc->txpow[i]; 1678 if (power < 0) { 1679 bbp94 += power; 1680 power = 0; 1681 } else if (power > 31) { 1682 bbp94 += power - 31; 1683 power = 31; 1684 } 1685 1686 /* 1687 * If we are switching from the 2GHz band to the 5GHz band or 1688 * vice-versa, BBP registers need to be reprogrammed. 1689 */ 1690 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1691 rum_select_band(sc, c); 1692 rum_select_antenna(sc); 1693 } 1694 ic->ic_curchan = c; 1695 1696 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1697 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1698 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1699 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1700 1701 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1702 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1703 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1704 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1705 1706 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1707 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1708 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1709 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1710 1711 DELAY(10); 1712 1713 /* enable smart mode for MIMO-capable RFs */ 1714 bbp3 = rum_bbp_read(sc, 3); 1715 1716 bbp3 &= ~RT2573_SMART_MODE; 1717 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1718 bbp3 |= RT2573_SMART_MODE; 1719 1720 rum_bbp_write(sc, 3, bbp3); 1721 1722 if (bbp94 != RT2573_BBPR94_DEFAULT) 1723 rum_bbp_write(sc, 94, bbp94); 1724 } 1725 1726 /* 1727 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1728 * and HostAP operating modes. 1729 */ 1730 Static void 1731 rum_enable_tsf_sync(struct rum_softc *sc) 1732 { 1733 struct ieee80211com *ic = &sc->sc_ic; 1734 uint32_t tmp; 1735 1736 if (ic->ic_opmode != IEEE80211_M_STA) { 1737 /* 1738 * Change default 16ms TBTT adjustment to 8ms. 1739 * Must be done before enabling beacon generation. 1740 */ 1741 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1742 } 1743 1744 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1745 1746 /* set beacon interval (in 1/16ms unit) */ 1747 tmp |= ic->ic_bss->ni_intval * 16; 1748 1749 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1750 if (ic->ic_opmode == IEEE80211_M_STA) 1751 tmp |= RT2573_TSF_MODE(1); 1752 else 1753 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1754 1755 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1756 } 1757 1758 Static void 1759 rum_update_slot(struct rum_softc *sc) 1760 { 1761 struct ieee80211com *ic = &sc->sc_ic; 1762 uint8_t slottime; 1763 uint32_t tmp; 1764 1765 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1766 1767 tmp = rum_read(sc, RT2573_MAC_CSR9); 1768 tmp = (tmp & ~0xff) | slottime; 1769 rum_write(sc, RT2573_MAC_CSR9, tmp); 1770 1771 DPRINTF(("setting slot time to %uus\n", slottime)); 1772 } 1773 1774 Static void 1775 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1776 { 1777 uint32_t tmp; 1778 1779 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1780 rum_write(sc, RT2573_MAC_CSR4, tmp); 1781 1782 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1783 rum_write(sc, RT2573_MAC_CSR5, tmp); 1784 } 1785 1786 Static void 1787 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1788 { 1789 uint32_t tmp; 1790 1791 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1792 rum_write(sc, RT2573_MAC_CSR2, tmp); 1793 1794 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1795 rum_write(sc, RT2573_MAC_CSR3, tmp); 1796 } 1797 1798 Static void 1799 rum_update_promisc(struct rum_softc *sc) 1800 { 1801 struct ifnet *ifp = sc->sc_ic.ic_ifp; 1802 uint32_t tmp; 1803 1804 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1805 1806 tmp &= ~RT2573_DROP_NOT_TO_ME; 1807 if (!(ifp->if_flags & IFF_PROMISC)) 1808 tmp |= RT2573_DROP_NOT_TO_ME; 1809 1810 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1811 1812 DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1813 "entering" : "leaving")); 1814 } 1815 1816 Static const char * 1817 rum_get_rf(int rev) 1818 { 1819 switch (rev) { 1820 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1821 case RT2573_RF_2528: return "RT2528"; 1822 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1823 case RT2573_RF_5226: return "RT5226"; 1824 default: return "unknown"; 1825 } 1826 } 1827 1828 Static void 1829 rum_read_eeprom(struct rum_softc *sc) 1830 { 1831 struct ieee80211com *ic = &sc->sc_ic; 1832 uint16_t val; 1833 #ifdef RUM_DEBUG 1834 int i; 1835 #endif 1836 1837 /* read MAC/BBP type */ 1838 rum_eeprom_read(sc, RT2573_EEPROM_MACBBP, &val, 2); 1839 sc->macbbp_rev = le16toh(val); 1840 1841 /* read MAC address */ 1842 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6); 1843 1844 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1845 val = le16toh(val); 1846 sc->rf_rev = (val >> 11) & 0x1f; 1847 sc->hw_radio = (val >> 10) & 0x1; 1848 sc->rx_ant = (val >> 4) & 0x3; 1849 sc->tx_ant = (val >> 2) & 0x3; 1850 sc->nb_ant = val & 0x3; 1851 1852 DPRINTF(("RF revision=%d\n", sc->rf_rev)); 1853 1854 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1855 val = le16toh(val); 1856 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1857 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1858 1859 DPRINTF(("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1860 sc->ext_2ghz_lna, sc->ext_5ghz_lna)); 1861 1862 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1863 val = le16toh(val); 1864 if ((val & 0xff) != 0xff) 1865 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1866 1867 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1868 val = le16toh(val); 1869 if ((val & 0xff) != 0xff) 1870 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1871 1872 DPRINTF(("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1873 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr)); 1874 1875 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1876 val = le16toh(val); 1877 if ((val & 0xff) != 0xff) 1878 sc->rffreq = val & 0xff; 1879 1880 DPRINTF(("RF freq=%d\n", sc->rffreq)); 1881 1882 /* read Tx power for all a/b/g channels */ 1883 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1884 /* XXX default Tx power for 802.11a channels */ 1885 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1886 #ifdef RUM_DEBUG 1887 for (i = 0; i < 14; i++) 1888 DPRINTF(("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i])); 1889 #endif 1890 1891 /* read default values for BBP registers */ 1892 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1893 #ifdef RUM_DEBUG 1894 for (i = 0; i < 14; i++) { 1895 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1896 continue; 1897 DPRINTF(("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1898 sc->bbp_prom[i].val)); 1899 } 1900 #endif 1901 } 1902 1903 Static int 1904 rum_bbp_init(struct rum_softc *sc) 1905 { 1906 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1907 int i, ntries; 1908 uint8_t val; 1909 1910 /* wait for BBP to be ready */ 1911 for (ntries = 0; ntries < 100; ntries++) { 1912 val = rum_bbp_read(sc, 0); 1913 if (val != 0 && val != 0xff) 1914 break; 1915 DELAY(1000); 1916 } 1917 if (ntries == 100) { 1918 printf("%s: timeout waiting for BBP\n", 1919 USBDEVNAME(sc->sc_dev)); 1920 return EIO; 1921 } 1922 1923 /* initialize BBP registers to default values */ 1924 for (i = 0; i < N(rum_def_bbp); i++) 1925 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1926 1927 /* write vendor-specific BBP values (from EEPROM) */ 1928 for (i = 0; i < 16; i++) { 1929 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1930 continue; 1931 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1932 } 1933 1934 return 0; 1935 #undef N 1936 } 1937 1938 Static int 1939 rum_init(struct ifnet *ifp) 1940 { 1941 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1942 struct rum_softc *sc = ifp->if_softc; 1943 struct ieee80211com *ic = &sc->sc_ic; 1944 struct rum_rx_data *data; 1945 uint32_t tmp; 1946 usbd_status error = 0; 1947 int i, ntries; 1948 1949 if ((sc->sc_flags & RT2573_FWLOADED) == 0) { 1950 if (rum_attachhook(sc)) 1951 goto fail; 1952 } 1953 1954 rum_stop(ifp, 0); 1955 1956 /* initialize MAC registers to default values */ 1957 for (i = 0; i < N(rum_def_mac); i++) 1958 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1959 1960 /* set host ready */ 1961 rum_write(sc, RT2573_MAC_CSR1, 3); 1962 rum_write(sc, RT2573_MAC_CSR1, 0); 1963 1964 /* wait for BBP/RF to wakeup */ 1965 for (ntries = 0; ntries < 1000; ntries++) { 1966 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1967 break; 1968 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1969 DELAY(1000); 1970 } 1971 if (ntries == 1000) { 1972 printf("%s: timeout waiting for BBP/RF to wakeup\n", 1973 USBDEVNAME(sc->sc_dev)); 1974 goto fail; 1975 } 1976 1977 if ((error = rum_bbp_init(sc)) != 0) 1978 goto fail; 1979 1980 /* select default channel */ 1981 rum_select_band(sc, ic->ic_curchan); 1982 rum_select_antenna(sc); 1983 rum_set_chan(sc, ic->ic_curchan); 1984 1985 /* clear STA registers */ 1986 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1987 1988 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 1989 rum_set_macaddr(sc, ic->ic_myaddr); 1990 1991 /* initialize ASIC */ 1992 rum_write(sc, RT2573_MAC_CSR1, 4); 1993 1994 /* 1995 * Allocate xfer for AMRR statistics requests. 1996 */ 1997 sc->amrr_xfer = usbd_alloc_xfer(sc->sc_udev); 1998 if (sc->amrr_xfer == NULL) { 1999 printf("%s: could not allocate AMRR xfer\n", 2000 USBDEVNAME(sc->sc_dev)); 2001 goto fail; 2002 } 2003 2004 /* 2005 * Open Tx and Rx USB bulk pipes. 2006 */ 2007 error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE, 2008 &sc->sc_tx_pipeh); 2009 if (error != 0) { 2010 printf("%s: could not open Tx pipe: %s\n", 2011 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 2012 goto fail; 2013 } 2014 2015 error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE, 2016 &sc->sc_rx_pipeh); 2017 if (error != 0) { 2018 printf("%s: could not open Rx pipe: %s\n", 2019 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 2020 goto fail; 2021 } 2022 2023 /* 2024 * Allocate Tx and Rx xfer queues. 2025 */ 2026 error = rum_alloc_tx_list(sc); 2027 if (error != 0) { 2028 printf("%s: could not allocate Tx list\n", 2029 USBDEVNAME(sc->sc_dev)); 2030 goto fail; 2031 } 2032 2033 error = rum_alloc_rx_list(sc); 2034 if (error != 0) { 2035 printf("%s: could not allocate Rx list\n", 2036 USBDEVNAME(sc->sc_dev)); 2037 goto fail; 2038 } 2039 2040 /* 2041 * Start up the receive pipe. 2042 */ 2043 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) { 2044 data = &sc->rx_data[i]; 2045 2046 usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf, 2047 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof); 2048 usbd_transfer(data->xfer); 2049 } 2050 2051 /* update Rx filter */ 2052 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2053 2054 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2055 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2056 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2057 RT2573_DROP_ACKCTS; 2058 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2059 tmp |= RT2573_DROP_TODS; 2060 if (!(ifp->if_flags & IFF_PROMISC)) 2061 tmp |= RT2573_DROP_NOT_TO_ME; 2062 } 2063 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2064 2065 ifp->if_flags &= ~IFF_OACTIVE; 2066 ifp->if_flags |= IFF_RUNNING; 2067 2068 if (ic->ic_opmode == IEEE80211_M_MONITOR) 2069 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2070 else 2071 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2072 2073 return 0; 2074 2075 fail: rum_stop(ifp, 1); 2076 return error; 2077 #undef N 2078 } 2079 2080 Static void 2081 rum_stop(struct ifnet *ifp, int disable) 2082 { 2083 struct rum_softc *sc = ifp->if_softc; 2084 struct ieee80211com *ic = &sc->sc_ic; 2085 uint32_t tmp; 2086 2087 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); /* free all nodes */ 2088 2089 sc->sc_tx_timer = 0; 2090 ifp->if_timer = 0; 2091 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2092 2093 /* disable Rx */ 2094 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2095 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2096 2097 /* reset ASIC */ 2098 rum_write(sc, RT2573_MAC_CSR1, 3); 2099 rum_write(sc, RT2573_MAC_CSR1, 0); 2100 2101 if (sc->sc_rx_pipeh != NULL) { 2102 usbd_abort_pipe(sc->sc_rx_pipeh); 2103 usbd_close_pipe(sc->sc_rx_pipeh); 2104 sc->sc_rx_pipeh = NULL; 2105 } 2106 2107 if (sc->sc_tx_pipeh != NULL) { 2108 usbd_abort_pipe(sc->sc_tx_pipeh); 2109 usbd_close_pipe(sc->sc_tx_pipeh); 2110 sc->sc_tx_pipeh = NULL; 2111 } 2112 2113 rum_free_rx_list(sc); 2114 rum_free_tx_list(sc); 2115 } 2116 2117 Static int 2118 rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size) 2119 { 2120 usb_device_request_t req; 2121 uint16_t reg = RT2573_MCU_CODE_BASE; 2122 usbd_status error; 2123 2124 /* copy firmware image into NIC */ 2125 for (; size >= 4; reg += 4, ucode += 4, size -= 4) 2126 rum_write(sc, reg, UGETDW(ucode)); 2127 2128 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2129 req.bRequest = RT2573_MCU_CNTL; 2130 USETW(req.wValue, RT2573_MCU_RUN); 2131 USETW(req.wIndex, 0); 2132 USETW(req.wLength, 0); 2133 2134 error = usbd_do_request(sc->sc_udev, &req, NULL); 2135 if (error != 0) { 2136 printf("%s: could not run firmware: %s\n", 2137 USBDEVNAME(sc->sc_dev), usbd_errstr(error)); 2138 } 2139 return error; 2140 } 2141 2142 Static int 2143 rum_prepare_beacon(struct rum_softc *sc) 2144 { 2145 struct ieee80211com *ic = &sc->sc_ic; 2146 struct rum_tx_desc desc; 2147 struct mbuf *m0; 2148 int rate; 2149 2150 m0 = ieee80211_beacon_alloc(ic, ic->ic_bss, &sc->sc_bo); 2151 if (m0 == NULL) { 2152 printf("%s: could not allocate beacon frame\n", 2153 sc->sc_dev.dv_xname); 2154 return ENOBUFS; 2155 } 2156 2157 /* send beacons at the lowest available rate */ 2158 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; 2159 2160 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2161 m0->m_pkthdr.len, rate); 2162 2163 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2164 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2165 2166 /* copy beacon header and payload into NIC memory */ 2167 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2168 m0->m_pkthdr.len); 2169 2170 m_freem(m0); 2171 2172 return 0; 2173 } 2174 2175 Static void 2176 rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni) 2177 { 2178 int i; 2179 2180 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2181 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2182 2183 ieee80211_amrr_node_init(&sc->amrr, &sc->amn); 2184 2185 /* set rate to some reasonable initial value */ 2186 for (i = ni->ni_rates.rs_nrates - 1; 2187 i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72; 2188 i--); 2189 ni->ni_txrate = i; 2190 2191 usb_callout(sc->sc_amrr_ch, hz, rum_amrr_timeout, sc); 2192 } 2193 2194 Static void 2195 rum_amrr_timeout(void *arg) 2196 { 2197 struct rum_softc *sc = arg; 2198 usb_device_request_t req; 2199 int s; 2200 2201 s = splusb(); 2202 2203 /* 2204 * Asynchronously read statistic registers (cleared by read). 2205 */ 2206 req.bmRequestType = UT_READ_VENDOR_DEVICE; 2207 req.bRequest = RT2573_READ_MULTI_MAC; 2208 USETW(req.wValue, 0); 2209 USETW(req.wIndex, RT2573_STA_CSR0); 2210 USETW(req.wLength, sizeof sc->sta); 2211 2212 usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc, 2213 USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof sc->sta, 0, 2214 rum_amrr_update); 2215 (void)usbd_transfer(sc->amrr_xfer); 2216 2217 splx(s); 2218 } 2219 2220 Static void 2221 rum_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv, 2222 usbd_status status) 2223 { 2224 struct rum_softc *sc = (struct rum_softc *)priv; 2225 struct ifnet *ifp = sc->sc_ic.ic_ifp; 2226 2227 if (status != USBD_NORMAL_COMPLETION) { 2228 printf("%s: could not retrieve Tx statistics - cancelling " 2229 "automatic rate control\n", USBDEVNAME(sc->sc_dev)); 2230 return; 2231 } 2232 2233 /* count TX retry-fail as Tx errors */ 2234 ifp->if_oerrors += le32toh(sc->sta[5]) >> 16; 2235 2236 sc->amn.amn_retrycnt = 2237 (le32toh(sc->sta[4]) >> 16) + /* TX one-retry ok count */ 2238 (le32toh(sc->sta[5]) & 0xffff) + /* TX more-retry ok count */ 2239 (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2240 2241 sc->amn.amn_txcnt = 2242 sc->amn.amn_retrycnt + 2243 (le32toh(sc->sta[4]) & 0xffff); /* TX no-retry ok count */ 2244 2245 ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn); 2246 2247 usb_callout(sc->sc_amrr_ch, hz, rum_amrr_timeout, sc); 2248 } 2249 2250 int 2251 rum_activate(device_ptr_t self, enum devact act) 2252 { 2253 switch (act) { 2254 case DVACT_ACTIVATE: 2255 return EOPNOTSUPP; 2256 2257 case DVACT_DEACTIVATE: 2258 /*if_deactivate(&sc->sc_ic.ic_if);*/ 2259 break; 2260 } 2261 2262 return 0; 2263 } 2264
Indexes created Wed Sep 24 05:09:52 GMT 2025