Annotation of sys/dev/usb/if_ral.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_ral.c,v 1.100 2007/07/18 18:10:31 damien Exp $ */
! 2:
! 3: /*-
! 4: * Copyright (c) 2005, 2006
! 5: * Damien Bergamini <damien.bergamini@free.fr>
! 6: *
! 7: * Permission to use, copy, modify, and distribute this software for any
! 8: * purpose with or without fee is hereby granted, provided that the above
! 9: * copyright notice and this permission notice appear in all copies.
! 10: *
! 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 18: */
! 19:
! 20: /*-
! 21: * Ralink Technology RT2500USB chipset driver
! 22: * http://www.ralinktech.com.tw/
! 23: */
! 24:
! 25: #include "bpfilter.h"
! 26:
! 27: #include <sys/param.h>
! 28: #include <sys/sockio.h>
! 29: #include <sys/sysctl.h>
! 30: #include <sys/mbuf.h>
! 31: #include <sys/kernel.h>
! 32: #include <sys/socket.h>
! 33: #include <sys/systm.h>
! 34: #include <sys/malloc.h>
! 35: #include <sys/timeout.h>
! 36: #include <sys/conf.h>
! 37: #include <sys/device.h>
! 38:
! 39: #include <machine/bus.h>
! 40: #include <machine/endian.h>
! 41: #include <machine/intr.h>
! 42:
! 43: #if NBPFILTER > 0
! 44: #include <net/bpf.h>
! 45: #endif
! 46: #include <net/if.h>
! 47: #include <net/if_arp.h>
! 48: #include <net/if_dl.h>
! 49: #include <net/if_media.h>
! 50: #include <net/if_types.h>
! 51:
! 52: #include <netinet/in.h>
! 53: #include <netinet/in_systm.h>
! 54: #include <netinet/in_var.h>
! 55: #include <netinet/if_ether.h>
! 56: #include <netinet/ip.h>
! 57:
! 58: #include <net80211/ieee80211_var.h>
! 59: #include <net80211/ieee80211_amrr.h>
! 60: #include <net80211/ieee80211_radiotap.h>
! 61:
! 62: #include <dev/usb/usb.h>
! 63: #include <dev/usb/usbdi.h>
! 64: #include <dev/usb/usbdi_util.h>
! 65: #include <dev/usb/usbdevs.h>
! 66:
! 67: #include <dev/usb/if_ralreg.h>
! 68: #include <dev/usb/if_ralvar.h>
! 69:
! 70: #ifdef USB_DEBUG
! 71: #define URAL_DEBUG
! 72: #endif
! 73:
! 74: #ifdef URAL_DEBUG
! 75: #define DPRINTF(x) do { if (ural_debug) printf x; } while (0)
! 76: #define DPRINTFN(n, x) do { if (ural_debug >= (n)) printf x; } while (0)
! 77: int ural_debug = 0;
! 78: #else
! 79: #define DPRINTF(x)
! 80: #define DPRINTFN(n, x)
! 81: #endif
! 82:
! 83: /* various supported device vendors/products */
! 84: static const struct usb_devno ural_devs[] = {
! 85: { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2570 },
! 86: { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2570_2 },
! 87: { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050 },
! 88: { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54G },
! 89: { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GP },
! 90: { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_HU200TS },
! 91: { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU },
! 92: { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_RT2570 },
! 93: { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWBKG },
! 94: { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254 },
! 95: { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54 },
! 96: { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54AI },
! 97: { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54YB },
! 98: { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_NINWIFI },
! 99: { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570 },
! 100: { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570_2 },
! 101: { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570_3 },
! 102: { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_NV902W },
! 103: { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570 },
! 104: { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_2 },
! 105: { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_3 },
! 106: { USB_VENDOR_SPHAIRON, USB_PRODUCT_SPHAIRON_UB801R },
! 107: { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2570 },
! 108: { USB_VENDOR_VTECH, USB_PRODUCT_VTECH_RT2570 },
! 109: { USB_VENDOR_ZINWELL, USB_PRODUCT_ZINWELL_RT2570 }
! 110: };
! 111:
! 112: int ural_alloc_tx_list(struct ural_softc *);
! 113: void ural_free_tx_list(struct ural_softc *);
! 114: int ural_alloc_rx_list(struct ural_softc *);
! 115: void ural_free_rx_list(struct ural_softc *);
! 116: int ural_media_change(struct ifnet *);
! 117: void ural_next_scan(void *);
! 118: void ural_task(void *);
! 119: int ural_newstate(struct ieee80211com *, enum ieee80211_state,
! 120: int);
! 121: void ural_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
! 122: void ural_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
! 123: #if NBPFILTER > 0
! 124: uint8_t ural_rxrate(const struct ural_rx_desc *);
! 125: #endif
! 126: int ural_ack_rate(struct ieee80211com *, int);
! 127: uint16_t ural_txtime(int, int, uint32_t);
! 128: uint8_t ural_plcp_signal(int);
! 129: void ural_setup_tx_desc(struct ural_softc *, struct ural_tx_desc *,
! 130: uint32_t, int, int);
! 131: int ural_tx_bcn(struct ural_softc *, struct mbuf *,
! 132: struct ieee80211_node *);
! 133: int ural_tx_data(struct ural_softc *, struct mbuf *,
! 134: struct ieee80211_node *);
! 135: void ural_start(struct ifnet *);
! 136: void ural_watchdog(struct ifnet *);
! 137: int ural_ioctl(struct ifnet *, u_long, caddr_t);
! 138: void ural_eeprom_read(struct ural_softc *, uint16_t, void *, int);
! 139: uint16_t ural_read(struct ural_softc *, uint16_t);
! 140: void ural_read_multi(struct ural_softc *, uint16_t, void *, int);
! 141: void ural_write(struct ural_softc *, uint16_t, uint16_t);
! 142: void ural_write_multi(struct ural_softc *, uint16_t, void *, int);
! 143: void ural_bbp_write(struct ural_softc *, uint8_t, uint8_t);
! 144: uint8_t ural_bbp_read(struct ural_softc *, uint8_t);
! 145: void ural_rf_write(struct ural_softc *, uint8_t, uint32_t);
! 146: void ural_set_chan(struct ural_softc *, struct ieee80211_channel *);
! 147: void ural_disable_rf_tune(struct ural_softc *);
! 148: void ural_enable_tsf_sync(struct ural_softc *);
! 149: void ural_update_slot(struct ural_softc *);
! 150: void ural_set_txpreamble(struct ural_softc *);
! 151: void ural_set_basicrates(struct ural_softc *);
! 152: void ural_set_bssid(struct ural_softc *, const uint8_t *);
! 153: void ural_set_macaddr(struct ural_softc *, const uint8_t *);
! 154: void ural_update_promisc(struct ural_softc *);
! 155: const char *ural_get_rf(int);
! 156: void ural_read_eeprom(struct ural_softc *);
! 157: int ural_bbp_init(struct ural_softc *);
! 158: void ural_set_txantenna(struct ural_softc *, int);
! 159: void ural_set_rxantenna(struct ural_softc *, int);
! 160: int ural_init(struct ifnet *);
! 161: void ural_stop(struct ifnet *, int);
! 162: void ural_newassoc(struct ieee80211com *, struct ieee80211_node *,
! 163: int);
! 164: void ural_amrr_start(struct ural_softc *, struct ieee80211_node *);
! 165: void ural_amrr_timeout(void *);
! 166: void ural_amrr_update(usbd_xfer_handle, usbd_private_handle,
! 167: usbd_status status);
! 168:
! 169: static const struct {
! 170: uint16_t reg;
! 171: uint16_t val;
! 172: } ural_def_mac[] = {
! 173: RAL_DEF_MAC
! 174: };
! 175:
! 176: static const struct {
! 177: uint8_t reg;
! 178: uint8_t val;
! 179: } ural_def_bbp[] = {
! 180: RAL_DEF_BBP
! 181: };
! 182:
! 183: static const uint32_t ural_rf2522_r2[] = RAL_RF2522_R2;
! 184: static const uint32_t ural_rf2523_r2[] = RAL_RF2523_R2;
! 185: static const uint32_t ural_rf2524_r2[] = RAL_RF2524_R2;
! 186: static const uint32_t ural_rf2525_r2[] = RAL_RF2525_R2;
! 187: static const uint32_t ural_rf2525_hi_r2[] = RAL_RF2525_HI_R2;
! 188: static const uint32_t ural_rf2525e_r2[] = RAL_RF2525E_R2;
! 189: static const uint32_t ural_rf2526_hi_r2[] = RAL_RF2526_HI_R2;
! 190: static const uint32_t ural_rf2526_r2[] = RAL_RF2526_R2;
! 191:
! 192: int ural_match(struct device *, void *, void *);
! 193: void ural_attach(struct device *, struct device *, void *);
! 194: int ural_detach(struct device *, int);
! 195: int ural_activate(struct device *, enum devact);
! 196:
! 197: struct cfdriver ural_cd = {
! 198: NULL, "ural", DV_IFNET
! 199: };
! 200:
! 201: const struct cfattach ural_ca = {
! 202: sizeof(struct ural_softc),
! 203: ural_match,
! 204: ural_attach,
! 205: ural_detach,
! 206: ural_activate,
! 207: };
! 208:
! 209: int
! 210: ural_match(struct device *parent, void *match, void *aux)
! 211: {
! 212: struct usb_attach_arg *uaa = aux;
! 213:
! 214: if (uaa->iface != NULL)
! 215: return UMATCH_NONE;
! 216:
! 217: return (usb_lookup(ural_devs, uaa->vendor, uaa->product) != NULL) ?
! 218: UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
! 219: }
! 220:
! 221: void
! 222: ural_attach(struct device *parent, struct device *self, void *aux)
! 223: {
! 224: struct ural_softc *sc = (struct ural_softc *)self;
! 225: struct usb_attach_arg *uaa = aux;
! 226: struct ieee80211com *ic = &sc->sc_ic;
! 227: struct ifnet *ifp = &ic->ic_if;
! 228: usb_interface_descriptor_t *id;
! 229: usb_endpoint_descriptor_t *ed;
! 230: usbd_status error;
! 231: char *devinfop;
! 232: int i;
! 233:
! 234: sc->sc_udev = uaa->device;
! 235:
! 236: devinfop = usbd_devinfo_alloc(uaa->device, 0);
! 237: printf("\n%s: %s\n", sc->sc_dev.dv_xname, devinfop);
! 238: usbd_devinfo_free(devinfop);
! 239:
! 240: if (usbd_set_config_no(sc->sc_udev, RAL_CONFIG_NO, 0) != 0) {
! 241: printf("%s: could not set configuration no\n",
! 242: sc->sc_dev.dv_xname);
! 243: return;
! 244: }
! 245:
! 246: /* get the first interface handle */
! 247: error = usbd_device2interface_handle(sc->sc_udev, RAL_IFACE_INDEX,
! 248: &sc->sc_iface);
! 249: if (error != 0) {
! 250: printf("%s: could not get interface handle\n",
! 251: sc->sc_dev.dv_xname);
! 252: return;
! 253: }
! 254:
! 255: /*
! 256: * Find endpoints.
! 257: */
! 258: id = usbd_get_interface_descriptor(sc->sc_iface);
! 259:
! 260: sc->sc_rx_no = sc->sc_tx_no = -1;
! 261: for (i = 0; i < id->bNumEndpoints; i++) {
! 262: ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
! 263: if (ed == NULL) {
! 264: printf("%s: no endpoint descriptor for iface %d\n",
! 265: sc->sc_dev.dv_xname, i);
! 266: return;
! 267: }
! 268:
! 269: if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
! 270: UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
! 271: sc->sc_rx_no = ed->bEndpointAddress;
! 272: else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
! 273: UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
! 274: sc->sc_tx_no = ed->bEndpointAddress;
! 275: }
! 276: if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
! 277: printf("%s: missing endpoint\n", sc->sc_dev.dv_xname);
! 278: return;
! 279: }
! 280:
! 281: usb_init_task(&sc->sc_task, ural_task, sc);
! 282: timeout_set(&sc->scan_to, ural_next_scan, sc);
! 283:
! 284: sc->amrr.amrr_min_success_threshold = 1;
! 285: sc->amrr.amrr_max_success_threshold = 10;
! 286: timeout_set(&sc->amrr_to, ural_amrr_timeout, sc);
! 287:
! 288: /* retrieve RT2570 rev. no */
! 289: sc->asic_rev = ural_read(sc, RAL_MAC_CSR0);
! 290:
! 291: /* retrieve MAC address and various other things from EEPROM */
! 292: ural_read_eeprom(sc);
! 293:
! 294: printf("%s: MAC/BBP RT%04x (rev 0x%02x), RF %s, address %s\n",
! 295: sc->sc_dev.dv_xname, sc->macbbp_rev, sc->asic_rev,
! 296: ural_get_rf(sc->rf_rev), ether_sprintf(ic->ic_myaddr));
! 297:
! 298: ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
! 299: ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
! 300: ic->ic_state = IEEE80211_S_INIT;
! 301:
! 302: /* set device capabilities */
! 303: ic->ic_caps =
! 304: IEEE80211_C_IBSS | /* IBSS mode supported */
! 305: IEEE80211_C_MONITOR | /* monitor mode supported */
! 306: IEEE80211_C_HOSTAP | /* HostAp mode supported */
! 307: IEEE80211_C_TXPMGT | /* tx power management */
! 308: IEEE80211_C_SHPREAMBLE | /* short preamble supported */
! 309: IEEE80211_C_SHSLOT | /* short slot time supported */
! 310: IEEE80211_C_WEP; /* s/w WEP */
! 311:
! 312: /* set supported .11b and .11g rates */
! 313: ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b;
! 314: ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g;
! 315:
! 316: /* set supported .11b and .11g channels (1 through 14) */
! 317: for (i = 1; i <= 14; i++) {
! 318: ic->ic_channels[i].ic_freq =
! 319: ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
! 320: ic->ic_channels[i].ic_flags =
! 321: IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
! 322: IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
! 323: }
! 324:
! 325: ifp->if_softc = sc;
! 326: ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
! 327: ifp->if_init = ural_init;
! 328: ifp->if_ioctl = ural_ioctl;
! 329: ifp->if_start = ural_start;
! 330: ifp->if_watchdog = ural_watchdog;
! 331: IFQ_SET_READY(&ifp->if_snd);
! 332: memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
! 333:
! 334: if_attach(ifp);
! 335: ieee80211_ifattach(ifp);
! 336: ic->ic_newassoc = ural_newassoc;
! 337:
! 338: /* override state transition machine */
! 339: sc->sc_newstate = ic->ic_newstate;
! 340: ic->ic_newstate = ural_newstate;
! 341: ieee80211_media_init(ifp, ural_media_change, ieee80211_media_status);
! 342:
! 343: #if NBPFILTER > 0
! 344: bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO,
! 345: sizeof (struct ieee80211_frame) + 64);
! 346:
! 347: sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
! 348: sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
! 349: sc->sc_rxtap.wr_ihdr.it_present = htole32(RAL_RX_RADIOTAP_PRESENT);
! 350:
! 351: sc->sc_txtap_len = sizeof sc->sc_txtapu;
! 352: sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
! 353: sc->sc_txtap.wt_ihdr.it_present = htole32(RAL_TX_RADIOTAP_PRESENT);
! 354: #endif
! 355:
! 356: usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
! 357: &sc->sc_dev);
! 358: }
! 359:
! 360: int
! 361: ural_detach(struct device *self, int flags)
! 362: {
! 363: struct ural_softc *sc = (struct ural_softc *)self;
! 364: struct ifnet *ifp = &sc->sc_ic.ic_if;
! 365: int s;
! 366:
! 367: s = splusb();
! 368:
! 369: ieee80211_ifdetach(ifp); /* free all nodes */
! 370: if_detach(ifp);
! 371:
! 372: usb_rem_task(sc->sc_udev, &sc->sc_task);
! 373: timeout_del(&sc->scan_to);
! 374: timeout_del(&sc->amrr_to);
! 375:
! 376: if (sc->amrr_xfer != NULL) {
! 377: usbd_free_xfer(sc->amrr_xfer);
! 378: sc->amrr_xfer = NULL;
! 379: }
! 380:
! 381: if (sc->sc_rx_pipeh != NULL) {
! 382: usbd_abort_pipe(sc->sc_rx_pipeh);
! 383: usbd_close_pipe(sc->sc_rx_pipeh);
! 384: }
! 385:
! 386: if (sc->sc_tx_pipeh != NULL) {
! 387: usbd_abort_pipe(sc->sc_tx_pipeh);
! 388: usbd_close_pipe(sc->sc_tx_pipeh);
! 389: }
! 390:
! 391: ural_free_rx_list(sc);
! 392: ural_free_tx_list(sc);
! 393:
! 394: splx(s);
! 395:
! 396: usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
! 397: &sc->sc_dev);
! 398:
! 399: return 0;
! 400: }
! 401:
! 402: int
! 403: ural_alloc_tx_list(struct ural_softc *sc)
! 404: {
! 405: int i, error;
! 406:
! 407: sc->tx_cur = sc->tx_queued = 0;
! 408:
! 409: for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
! 410: struct ural_tx_data *data = &sc->tx_data[i];
! 411:
! 412: data->sc = sc;
! 413:
! 414: data->xfer = usbd_alloc_xfer(sc->sc_udev);
! 415: if (data->xfer == NULL) {
! 416: printf("%s: could not allocate tx xfer\n",
! 417: sc->sc_dev.dv_xname);
! 418: error = ENOMEM;
! 419: goto fail;
! 420: }
! 421: data->buf = usbd_alloc_buffer(data->xfer,
! 422: RAL_TX_DESC_SIZE + IEEE80211_MAX_LEN);
! 423: if (data->buf == NULL) {
! 424: printf("%s: could not allocate tx buffer\n",
! 425: sc->sc_dev.dv_xname);
! 426: error = ENOMEM;
! 427: goto fail;
! 428: }
! 429: }
! 430:
! 431: return 0;
! 432:
! 433: fail: ural_free_tx_list(sc);
! 434: return error;
! 435: }
! 436:
! 437: void
! 438: ural_free_tx_list(struct ural_softc *sc)
! 439: {
! 440: int i;
! 441:
! 442: for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
! 443: struct ural_tx_data *data = &sc->tx_data[i];
! 444:
! 445: if (data->xfer != NULL) {
! 446: usbd_free_xfer(data->xfer);
! 447: data->xfer = NULL;
! 448: }
! 449: /*
! 450: * The node has already been freed at that point so don't call
! 451: * ieee80211_release_node() here.
! 452: */
! 453: data->ni = NULL;
! 454: }
! 455: }
! 456:
! 457: int
! 458: ural_alloc_rx_list(struct ural_softc *sc)
! 459: {
! 460: int i, error;
! 461:
! 462: for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
! 463: struct ural_rx_data *data = &sc->rx_data[i];
! 464:
! 465: data->sc = sc;
! 466:
! 467: data->xfer = usbd_alloc_xfer(sc->sc_udev);
! 468: if (data->xfer == NULL) {
! 469: printf("%s: could not allocate rx xfer\n",
! 470: sc->sc_dev.dv_xname);
! 471: error = ENOMEM;
! 472: goto fail;
! 473: }
! 474: if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
! 475: printf("%s: could not allocate rx buffer\n",
! 476: sc->sc_dev.dv_xname);
! 477: error = ENOMEM;
! 478: goto fail;
! 479: }
! 480:
! 481: MGETHDR(data->m, M_DONTWAIT, MT_DATA);
! 482: if (data->m == NULL) {
! 483: printf("%s: could not allocate rx mbuf\n",
! 484: sc->sc_dev.dv_xname);
! 485: error = ENOMEM;
! 486: goto fail;
! 487: }
! 488: MCLGET(data->m, M_DONTWAIT);
! 489: if (!(data->m->m_flags & M_EXT)) {
! 490: printf("%s: could not allocate rx mbuf cluster\n",
! 491: sc->sc_dev.dv_xname);
! 492: error = ENOMEM;
! 493: goto fail;
! 494: }
! 495: data->buf = mtod(data->m, uint8_t *);
! 496: }
! 497:
! 498: return 0;
! 499:
! 500: fail: ural_free_tx_list(sc);
! 501: return error;
! 502: }
! 503:
! 504: void
! 505: ural_free_rx_list(struct ural_softc *sc)
! 506: {
! 507: int i;
! 508:
! 509: for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
! 510: struct ural_rx_data *data = &sc->rx_data[i];
! 511:
! 512: if (data->xfer != NULL) {
! 513: usbd_free_xfer(data->xfer);
! 514: data->xfer = NULL;
! 515: }
! 516: if (data->m != NULL) {
! 517: m_freem(data->m);
! 518: data->m = NULL;
! 519: }
! 520: }
! 521: }
! 522:
! 523: int
! 524: ural_media_change(struct ifnet *ifp)
! 525: {
! 526: int error;
! 527:
! 528: error = ieee80211_media_change(ifp);
! 529: if (error != ENETRESET)
! 530: return error;
! 531:
! 532: if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
! 533: ural_init(ifp);
! 534:
! 535: return 0;
! 536: }
! 537:
! 538: /*
! 539: * This function is called periodically (every 200ms) during scanning to
! 540: * switch from one channel to another.
! 541: */
! 542: void
! 543: ural_next_scan(void *arg)
! 544: {
! 545: struct ural_softc *sc = arg;
! 546: struct ieee80211com *ic = &sc->sc_ic;
! 547: struct ifnet *ifp = &ic->ic_if;
! 548:
! 549: if (ic->ic_state == IEEE80211_S_SCAN)
! 550: ieee80211_next_scan(ifp);
! 551: }
! 552:
! 553: void
! 554: ural_task(void *arg)
! 555: {
! 556: struct ural_softc *sc = arg;
! 557: struct ieee80211com *ic = &sc->sc_ic;
! 558: enum ieee80211_state ostate;
! 559: struct ieee80211_node *ni;
! 560: struct mbuf *m;
! 561:
! 562: ostate = ic->ic_state;
! 563:
! 564: switch (sc->sc_state) {
! 565: case IEEE80211_S_INIT:
! 566: if (ostate == IEEE80211_S_RUN) {
! 567: /* abort TSF synchronization */
! 568: ural_write(sc, RAL_TXRX_CSR19, 0);
! 569:
! 570: /* force tx led to stop blinking */
! 571: ural_write(sc, RAL_MAC_CSR20, 0);
! 572: }
! 573: break;
! 574:
! 575: case IEEE80211_S_SCAN:
! 576: ural_set_chan(sc, ic->ic_bss->ni_chan);
! 577: timeout_add(&sc->scan_to, hz / 5);
! 578: break;
! 579:
! 580: case IEEE80211_S_AUTH:
! 581: ural_set_chan(sc, ic->ic_bss->ni_chan);
! 582: break;
! 583:
! 584: case IEEE80211_S_ASSOC:
! 585: ural_set_chan(sc, ic->ic_bss->ni_chan);
! 586: break;
! 587:
! 588: case IEEE80211_S_RUN:
! 589: ural_set_chan(sc, ic->ic_bss->ni_chan);
! 590:
! 591: ni = ic->ic_bss;
! 592:
! 593: if (ic->ic_opmode != IEEE80211_M_MONITOR) {
! 594: ural_update_slot(sc);
! 595: ural_set_txpreamble(sc);
! 596: ural_set_basicrates(sc);
! 597: ural_set_bssid(sc, ni->ni_bssid);
! 598: }
! 599:
! 600: if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
! 601: ic->ic_opmode == IEEE80211_M_IBSS) {
! 602: m = ieee80211_beacon_alloc(ic, ni);
! 603: if (m == NULL) {
! 604: printf("%s: could not allocate beacon\n",
! 605: sc->sc_dev.dv_xname);
! 606: return;
! 607: }
! 608:
! 609: if (ural_tx_bcn(sc, m, ni) != 0) {
! 610: m_freem(m);
! 611: printf("%s: could not transmit beacon\n",
! 612: sc->sc_dev.dv_xname);
! 613: return;
! 614: }
! 615:
! 616: /* beacon is no longer needed */
! 617: m_freem(m);
! 618: }
! 619:
! 620: /* make tx led blink on tx (controlled by ASIC) */
! 621: ural_write(sc, RAL_MAC_CSR20, 1);
! 622:
! 623: if (ic->ic_opmode != IEEE80211_M_MONITOR)
! 624: ural_enable_tsf_sync(sc);
! 625:
! 626: if (ic->ic_opmode == IEEE80211_M_STA) {
! 627: /* fake a join to init the tx rate */
! 628: ural_newassoc(ic, ic->ic_bss, 1);
! 629:
! 630: /* enable automatic rate control in STA mode */
! 631: if (ic->ic_fixed_rate == -1)
! 632: ural_amrr_start(sc, ic->ic_bss);
! 633: }
! 634:
! 635: break;
! 636: }
! 637:
! 638: sc->sc_newstate(ic, sc->sc_state, sc->sc_arg);
! 639: }
! 640:
! 641: int
! 642: ural_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
! 643: {
! 644: struct ural_softc *sc = ic->ic_if.if_softc;
! 645:
! 646: usb_rem_task(sc->sc_udev, &sc->sc_task);
! 647: timeout_del(&sc->scan_to);
! 648: timeout_del(&sc->amrr_to);
! 649:
! 650: /* do it in a process context */
! 651: sc->sc_state = nstate;
! 652: sc->sc_arg = arg;
! 653: usb_add_task(sc->sc_udev, &sc->sc_task);
! 654: return 0;
! 655: }
! 656:
! 657: /* quickly determine if a given rate is CCK or OFDM */
! 658: #define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
! 659:
! 660: #define RAL_ACK_SIZE 14 /* 10 + 4(FCS) */
! 661: #define RAL_CTS_SIZE 14 /* 10 + 4(FCS) */
! 662:
! 663: #define RAL_SIFS 10 /* us */
! 664:
! 665: #define RAL_RXTX_TURNAROUND 5 /* us */
! 666:
! 667: void
! 668: ural_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
! 669: {
! 670: struct ural_tx_data *data = priv;
! 671: struct ural_softc *sc = data->sc;
! 672: struct ieee80211com *ic = &sc->sc_ic;
! 673: struct ifnet *ifp = &ic->ic_if;
! 674: int s;
! 675:
! 676: if (status != USBD_NORMAL_COMPLETION) {
! 677: if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
! 678: return;
! 679:
! 680: printf("%s: could not transmit buffer: %s\n",
! 681: sc->sc_dev.dv_xname, usbd_errstr(status));
! 682:
! 683: if (status == USBD_STALLED)
! 684: usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh);
! 685:
! 686: ifp->if_oerrors++;
! 687: return;
! 688: }
! 689:
! 690: s = splnet();
! 691:
! 692: ieee80211_release_node(ic, data->ni);
! 693: data->ni = 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: ural_start(ifp);
! 703:
! 704: splx(s);
! 705: }
! 706:
! 707: void
! 708: ural_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
! 709: {
! 710: struct ural_rx_data *data = priv;
! 711: struct ural_softc *sc = data->sc;
! 712: struct ieee80211com *ic = &sc->sc_ic;
! 713: struct ifnet *ifp = &ic->ic_if;
! 714: const struct ural_rx_desc *desc;
! 715: struct ieee80211_frame *wh;
! 716: struct ieee80211_node *ni;
! 717: struct mbuf *mnew, *m;
! 718: int s, len;
! 719:
! 720: if (status != USBD_NORMAL_COMPLETION) {
! 721: if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
! 722: return;
! 723:
! 724: if (status == USBD_STALLED)
! 725: usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
! 726: goto skip;
! 727: }
! 728:
! 729: usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
! 730:
! 731: if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
! 732: DPRINTF(("%s: xfer too short %d\n", sc->sc_dev.dv_xname,
! 733: len));
! 734: ifp->if_ierrors++;
! 735: goto skip;
! 736: }
! 737:
! 738: /* rx descriptor is located at the end */
! 739: desc = (struct ural_rx_desc *)(data->buf + len - RAL_RX_DESC_SIZE);
! 740:
! 741: if (letoh32(desc->flags) & (RAL_RX_PHY_ERROR | RAL_RX_CRC_ERROR)) {
! 742: /*
! 743: * This should not happen since we did not request to receive
! 744: * those frames when we filled RAL_TXRX_CSR2.
! 745: */
! 746: DPRINTFN(5, ("PHY or CRC error\n"));
! 747: ifp->if_ierrors++;
! 748: goto skip;
! 749: }
! 750:
! 751: MGETHDR(mnew, M_DONTWAIT, MT_DATA);
! 752: if (mnew == NULL) {
! 753: printf("%s: could not allocate rx mbuf\n",
! 754: sc->sc_dev.dv_xname);
! 755: ifp->if_ierrors++;
! 756: goto skip;
! 757: }
! 758: MCLGET(mnew, M_DONTWAIT);
! 759: if (!(mnew->m_flags & M_EXT)) {
! 760: printf("%s: could not allocate rx mbuf cluster\n",
! 761: sc->sc_dev.dv_xname);
! 762: m_freem(mnew);
! 763: ifp->if_ierrors++;
! 764: goto skip;
! 765: }
! 766: m = data->m;
! 767: data->m = mnew;
! 768: data->buf = mtod(data->m, uint8_t *);
! 769:
! 770: /* finalize mbuf */
! 771: m->m_pkthdr.rcvif = ifp;
! 772: m->m_pkthdr.len = m->m_len = (letoh32(desc->flags) >> 16) & 0xfff;
! 773: m_adj(m, -IEEE80211_CRC_LEN); /* trim FCS */
! 774:
! 775: s = splnet();
! 776:
! 777: #if NBPFILTER > 0
! 778: if (sc->sc_drvbpf != NULL) {
! 779: struct mbuf mb;
! 780: struct ural_rx_radiotap_header *tap = &sc->sc_rxtap;
! 781:
! 782: tap->wr_flags = 0;
! 783: tap->wr_rate = ural_rxrate(desc);
! 784: tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
! 785: tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
! 786: tap->wr_antenna = sc->rx_ant;
! 787: tap->wr_antsignal = desc->rssi;
! 788:
! 789: mb.m_data = (caddr_t)tap;
! 790: mb.m_len = sc->sc_rxtap_len;
! 791: mb.m_next = m;
! 792: mb.m_nextpkt = NULL;
! 793: mb.m_type = 0;
! 794: mb.m_flags = 0;
! 795: bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN);
! 796: }
! 797: #endif
! 798:
! 799: wh = mtod(m, struct ieee80211_frame *);
! 800: ni = ieee80211_find_rxnode(ic, wh);
! 801:
! 802: /* send the frame to the 802.11 layer */
! 803: ieee80211_input(ifp, m, ni, desc->rssi, 0);
! 804:
! 805: /* node is no longer needed */
! 806: ieee80211_release_node(ic, ni);
! 807:
! 808: /*
! 809: * In HostAP mode, ieee80211_input() will enqueue packets in if_snd
! 810: * without calling if_start().
! 811: */
! 812: if (!IFQ_IS_EMPTY(&ifp->if_snd) && !(ifp->if_flags & IFF_OACTIVE))
! 813: ural_start(ifp);
! 814:
! 815: splx(s);
! 816:
! 817: DPRINTFN(15, ("rx done\n"));
! 818:
! 819: skip: /* setup a new transfer */
! 820: usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES,
! 821: USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
! 822: (void)usbd_transfer(xfer);
! 823: }
! 824:
! 825: /*
! 826: * This function is only used by the Rx radiotap code. It returns the rate at
! 827: * which a given frame was received.
! 828: */
! 829: #if NBPFILTER > 0
! 830: uint8_t
! 831: ural_rxrate(const struct ural_rx_desc *desc)
! 832: {
! 833: if (letoh32(desc->flags) & RAL_RX_OFDM) {
! 834: /* reverse function of ural_plcp_signal */
! 835: switch (desc->rate) {
! 836: case 0xb: return 12;
! 837: case 0xf: return 18;
! 838: case 0xa: return 24;
! 839: case 0xe: return 36;
! 840: case 0x9: return 48;
! 841: case 0xd: return 72;
! 842: case 0x8: return 96;
! 843: case 0xc: return 108;
! 844: }
! 845: } else {
! 846: if (desc->rate == 10)
! 847: return 2;
! 848: if (desc->rate == 20)
! 849: return 4;
! 850: if (desc->rate == 55)
! 851: return 11;
! 852: if (desc->rate == 110)
! 853: return 22;
! 854: }
! 855: return 2; /* should not get there */
! 856: }
! 857: #endif
! 858:
! 859: /*
! 860: * Return the expected ack rate for a frame transmitted at rate `rate'.
! 861: */
! 862: int
! 863: ural_ack_rate(struct ieee80211com *ic, int rate)
! 864: {
! 865: switch (rate) {
! 866: /* CCK rates */
! 867: case 2:
! 868: return 2;
! 869: case 4:
! 870: case 11:
! 871: case 22:
! 872: return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate;
! 873:
! 874: /* OFDM rates */
! 875: case 12:
! 876: case 18:
! 877: return 12;
! 878: case 24:
! 879: case 36:
! 880: return 24;
! 881: case 48:
! 882: case 72:
! 883: case 96:
! 884: case 108:
! 885: return 48;
! 886: }
! 887:
! 888: /* default to 1Mbps */
! 889: return 2;
! 890: }
! 891:
! 892: /*
! 893: * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'.
! 894: * The function automatically determines the operating mode depending on the
! 895: * given rate. `flags' indicates whether short preamble is in use or not.
! 896: */
! 897: uint16_t
! 898: ural_txtime(int len, int rate, uint32_t flags)
! 899: {
! 900: uint16_t txtime;
! 901:
! 902: if (RAL_RATE_IS_OFDM(rate)) {
! 903: /* IEEE Std 802.11g-2003, pp. 44 */
! 904: txtime = (8 + 4 * len + 3 + rate - 1) / rate;
! 905: txtime = 16 + 4 + 4 * txtime + 6;
! 906: } else {
! 907: /* IEEE Std 802.11b-1999, pp. 28 */
! 908: txtime = (16 * len + rate - 1) / rate;
! 909: if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE))
! 910: txtime += 72 + 24;
! 911: else
! 912: txtime += 144 + 48;
! 913: }
! 914: return txtime;
! 915: }
! 916:
! 917: uint8_t
! 918: ural_plcp_signal(int rate)
! 919: {
! 920: switch (rate) {
! 921: /* CCK rates (returned values are device-dependent) */
! 922: case 2: return 0x0;
! 923: case 4: return 0x1;
! 924: case 11: return 0x2;
! 925: case 22: return 0x3;
! 926:
! 927: /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
! 928: case 12: return 0xb;
! 929: case 18: return 0xf;
! 930: case 24: return 0xa;
! 931: case 36: return 0xe;
! 932: case 48: return 0x9;
! 933: case 72: return 0xd;
! 934: case 96: return 0x8;
! 935: case 108: return 0xc;
! 936:
! 937: /* unsupported rates (should not get there) */
! 938: default: return 0xff;
! 939: }
! 940: }
! 941:
! 942: void
! 943: ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc,
! 944: uint32_t flags, int len, int rate)
! 945: {
! 946: struct ieee80211com *ic = &sc->sc_ic;
! 947: uint16_t plcp_length;
! 948: int remainder;
! 949:
! 950: desc->flags = htole32(flags);
! 951: desc->flags |= htole32(len << 16);
! 952:
! 953: desc->wme = htole16(
! 954: RAL_AIFSN(2) |
! 955: RAL_LOGCWMIN(3) |
! 956: RAL_LOGCWMAX(5));
! 957:
! 958: /* setup PLCP fields */
! 959: desc->plcp_signal = ural_plcp_signal(rate);
! 960: desc->plcp_service = 4;
! 961:
! 962: len += IEEE80211_CRC_LEN;
! 963: if (RAL_RATE_IS_OFDM(rate)) {
! 964: desc->flags |= htole32(RAL_TX_OFDM);
! 965:
! 966: plcp_length = len & 0xfff;
! 967: desc->plcp_length_hi = plcp_length >> 6;
! 968: desc->plcp_length_lo = plcp_length & 0x3f;
! 969: } else {
! 970: plcp_length = (16 * len + rate - 1) / rate;
! 971: if (rate == 22) {
! 972: remainder = (16 * len) % 22;
! 973: if (remainder != 0 && remainder < 7)
! 974: desc->plcp_service |= RAL_PLCP_LENGEXT;
! 975: }
! 976: desc->plcp_length_hi = plcp_length >> 8;
! 977: desc->plcp_length_lo = plcp_length & 0xff;
! 978:
! 979: if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
! 980: desc->plcp_signal |= 0x08;
! 981: }
! 982:
! 983: desc->iv = 0;
! 984: desc->eiv = 0;
! 985: }
! 986:
! 987: #define RAL_TX_TIMEOUT 5000
! 988:
! 989: int
! 990: ural_tx_bcn(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
! 991: {
! 992: struct ural_tx_desc *desc;
! 993: usbd_xfer_handle xfer;
! 994: usbd_status error;
! 995: uint8_t cmd = 0;
! 996: uint8_t *buf;
! 997: int xferlen, rate = 2;
! 998:
! 999: xfer = usbd_alloc_xfer(sc->sc_udev);
! 1000: if (xfer == NULL)
! 1001: return ENOMEM;
! 1002:
! 1003: /* xfer length needs to be a multiple of two! */
! 1004: xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
! 1005:
! 1006: buf = usbd_alloc_buffer(xfer, xferlen);
! 1007: if (buf == NULL) {
! 1008: usbd_free_xfer(xfer);
! 1009: return ENOMEM;
! 1010: }
! 1011:
! 1012: usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, &cmd, sizeof cmd,
! 1013: USBD_FORCE_SHORT_XFER, RAL_TX_TIMEOUT, NULL);
! 1014:
! 1015: error = usbd_sync_transfer(xfer);
! 1016: if (error != 0) {
! 1017: usbd_free_xfer(xfer);
! 1018: return error;
! 1019: }
! 1020:
! 1021: desc = (struct ural_tx_desc *)buf;
! 1022:
! 1023: m_copydata(m0, 0, m0->m_pkthdr.len, buf + RAL_TX_DESC_SIZE);
! 1024: ural_setup_tx_desc(sc, desc, RAL_TX_IFS_NEWBACKOFF | RAL_TX_TIMESTAMP,
! 1025: m0->m_pkthdr.len, rate);
! 1026:
! 1027: DPRINTFN(10, ("sending beacon frame len=%u rate=%u xfer len=%u\n",
! 1028: m0->m_pkthdr.len, rate, xferlen));
! 1029:
! 1030: usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, buf, xferlen,
! 1031: USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT, NULL);
! 1032:
! 1033: error = usbd_sync_transfer(xfer);
! 1034: usbd_free_xfer(xfer);
! 1035:
! 1036: return error;
! 1037: }
! 1038:
! 1039: int
! 1040: ural_tx_data(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
! 1041: {
! 1042: struct ieee80211com *ic = &sc->sc_ic;
! 1043: struct ifnet *ifp = &ic->ic_if;
! 1044: struct ural_tx_desc *desc;
! 1045: struct ural_tx_data *data;
! 1046: struct ieee80211_frame *wh;
! 1047: uint32_t flags = RAL_TX_NEWSEQ;
! 1048: uint16_t dur;
! 1049: usbd_status error;
! 1050: int rate, xferlen, pktlen, needrts = 0, needcts = 0;
! 1051:
! 1052: wh = mtod(m0, struct ieee80211_frame *);
! 1053:
! 1054: if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
! 1055: m0 = ieee80211_wep_crypt(ifp, m0, 1);
! 1056: if (m0 == NULL)
! 1057: return ENOBUFS;
! 1058:
! 1059: /* packet header may have moved, reset our local pointer */
! 1060: wh = mtod(m0, struct ieee80211_frame *);
! 1061: }
! 1062:
! 1063: /* compute actual packet length (including CRC and crypto overhead) */
! 1064: pktlen = m0->m_pkthdr.len + IEEE80211_CRC_LEN;
! 1065:
! 1066: /* pickup a rate */
! 1067: if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
! 1068: ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
! 1069: IEEE80211_FC0_TYPE_MGT)) {
! 1070: /* mgmt/multicast frames are sent at the lowest avail. rate */
! 1071: rate = ni->ni_rates.rs_rates[0];
! 1072: } else if (ic->ic_fixed_rate != -1) {
! 1073: rate = ic->ic_sup_rates[ic->ic_curmode].
! 1074: rs_rates[ic->ic_fixed_rate];
! 1075: } else
! 1076: rate = ni->ni_rates.rs_rates[ni->ni_txrate];
! 1077: if (rate == 0)
! 1078: rate = 2; /* XXX should not happen */
! 1079: rate &= IEEE80211_RATE_VAL;
! 1080:
! 1081: /* check if RTS/CTS or CTS-to-self protection must be used */
! 1082: if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
! 1083: /* multicast frames are not sent at OFDM rates in 802.11b/g */
! 1084: if (pktlen > ic->ic_rtsthreshold) {
! 1085: needrts = 1; /* RTS/CTS based on frame length */
! 1086: } else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
! 1087: RAL_RATE_IS_OFDM(rate)) {
! 1088: if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
! 1089: needcts = 1; /* CTS-to-self */
! 1090: else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
! 1091: needrts = 1; /* RTS/CTS */
! 1092: }
! 1093: }
! 1094: if (needrts || needcts) {
! 1095: struct mbuf *mprot;
! 1096: int protrate, ackrate;
! 1097: uint16_t dur;
! 1098:
! 1099: protrate = 2;
! 1100: ackrate = ural_ack_rate(ic, rate);
! 1101:
! 1102: dur = ural_txtime(pktlen, rate, ic->ic_flags) +
! 1103: ural_txtime(RAL_ACK_SIZE, ackrate, ic->ic_flags) +
! 1104: 2 * RAL_SIFS;
! 1105: if (needrts) {
! 1106: dur += ural_txtime(RAL_CTS_SIZE, ural_ack_rate(ic,
! 1107: protrate), ic->ic_flags) + RAL_SIFS;
! 1108: mprot = ieee80211_get_rts(ic, wh, dur);
! 1109: } else {
! 1110: mprot = ieee80211_get_cts_to_self(ic, dur);
! 1111: }
! 1112: if (mprot == NULL) {
! 1113: printf("%s: could not allocate protection frame\n",
! 1114: sc->sc_dev.dv_xname);
! 1115: m_freem(m0);
! 1116: return ENOBUFS;
! 1117: }
! 1118:
! 1119: data = &sc->tx_data[sc->tx_cur];
! 1120: desc = (struct ural_tx_desc *)data->buf;
! 1121:
! 1122: /* avoid multiple free() of the same node for each fragment */
! 1123: data->ni = ieee80211_ref_node(ni);
! 1124:
! 1125: m_copydata(mprot, 0, mprot->m_pkthdr.len,
! 1126: data->buf + RAL_TX_DESC_SIZE);
! 1127: ural_setup_tx_desc(sc, desc,
! 1128: (needrts ? RAL_TX_NEED_ACK : 0) | RAL_TX_RETRY(7),
! 1129: mprot->m_pkthdr.len, protrate);
! 1130:
! 1131: /* no roundup necessary here */
! 1132: xferlen = RAL_TX_DESC_SIZE + mprot->m_pkthdr.len;
! 1133:
! 1134: /* XXX may want to pass the protection frame to BPF */
! 1135:
! 1136: /* mbuf is no longer needed */
! 1137: m_freem(mprot);
! 1138:
! 1139: usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
! 1140: xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
! 1141: RAL_TX_TIMEOUT, ural_txeof);
! 1142: error = usbd_transfer(data->xfer);
! 1143: if (error != 0 && error != USBD_IN_PROGRESS) {
! 1144: m_freem(m0);
! 1145: return error;
! 1146: }
! 1147:
! 1148: sc->tx_queued++;
! 1149: sc->tx_cur = (sc->tx_cur + 1) % RAL_TX_LIST_COUNT;
! 1150:
! 1151: flags |= RAL_TX_IFS_SIFS;
! 1152: }
! 1153:
! 1154: data = &sc->tx_data[sc->tx_cur];
! 1155: desc = (struct ural_tx_desc *)data->buf;
! 1156:
! 1157: data->ni = ni;
! 1158:
! 1159: if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
! 1160: flags |= RAL_TX_NEED_ACK;
! 1161: flags |= RAL_TX_RETRY(7);
! 1162:
! 1163: dur = ural_txtime(RAL_ACK_SIZE, ural_ack_rate(ic, rate),
! 1164: ic->ic_flags) + RAL_SIFS;
! 1165: *(uint16_t *)wh->i_dur = htole16(dur);
! 1166:
! 1167: /* tell hardware to set timestamp in probe responses */
! 1168: if ((wh->i_fc[0] &
! 1169: (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
! 1170: (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
! 1171: flags |= RAL_TX_TIMESTAMP;
! 1172: }
! 1173:
! 1174: #if NBPFILTER > 0
! 1175: if (sc->sc_drvbpf != NULL) {
! 1176: struct mbuf mb;
! 1177: struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
! 1178:
! 1179: tap->wt_flags = 0;
! 1180: tap->wt_rate = rate;
! 1181: tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
! 1182: tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
! 1183: tap->wt_antenna = sc->tx_ant;
! 1184:
! 1185: mb.m_data = (caddr_t)tap;
! 1186: mb.m_len = sc->sc_txtap_len;
! 1187: mb.m_next = m0;
! 1188: mb.m_nextpkt = NULL;
! 1189: mb.m_type = 0;
! 1190: mb.m_flags = 0;
! 1191: bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_OUT);
! 1192: }
! 1193: #endif
! 1194:
! 1195: m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
! 1196: ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
! 1197:
! 1198: /* align end on a 2-bytes boundary */
! 1199: xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
! 1200:
! 1201: /*
! 1202: * No space left in the last URB to store the extra 2 bytes, force
! 1203: * sending of another URB.
! 1204: */
! 1205: if ((xferlen % 64) == 0)
! 1206: xferlen += 2;
! 1207:
! 1208: DPRINTFN(10, ("sending frame len=%u rate=%u xfer len=%u\n",
! 1209: m0->m_pkthdr.len, rate, xferlen));
! 1210:
! 1211: /* mbuf is no longer needed */
! 1212: m_freem(m0);
! 1213:
! 1214: usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen,
! 1215: USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT, ural_txeof);
! 1216: error = usbd_transfer(data->xfer);
! 1217: if (error != 0 && error != USBD_IN_PROGRESS)
! 1218: return error;
! 1219:
! 1220: sc->tx_queued++;
! 1221: sc->tx_cur = (sc->tx_cur + 1) % RAL_TX_LIST_COUNT;
! 1222:
! 1223: return 0;
! 1224: }
! 1225:
! 1226: void
! 1227: ural_start(struct ifnet *ifp)
! 1228: {
! 1229: struct ural_softc *sc = ifp->if_softc;
! 1230: struct ieee80211com *ic = &sc->sc_ic;
! 1231: struct ieee80211_node *ni;
! 1232: struct mbuf *m0;
! 1233:
! 1234: /*
! 1235: * net80211 may still try to send management frames even if the
! 1236: * IFF_RUNNING flag is not set...
! 1237: */
! 1238: if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
! 1239: return;
! 1240:
! 1241: for (;;) {
! 1242: IF_POLL(&ic->ic_mgtq, m0);
! 1243: if (m0 != NULL) {
! 1244: if (sc->tx_queued >= RAL_TX_LIST_COUNT - 1) {
! 1245: ifp->if_flags |= IFF_OACTIVE;
! 1246: break;
! 1247: }
! 1248: IF_DEQUEUE(&ic->ic_mgtq, m0);
! 1249:
! 1250: ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
! 1251: m0->m_pkthdr.rcvif = NULL;
! 1252: #if NBPFILTER > 0
! 1253: if (ic->ic_rawbpf != NULL)
! 1254: bpf_mtap(ic->ic_rawbpf, m0, BPF_DIRECTION_OUT);
! 1255: #endif
! 1256: if (ural_tx_data(sc, m0, ni) != 0)
! 1257: break;
! 1258:
! 1259: } else {
! 1260: if (ic->ic_state != IEEE80211_S_RUN)
! 1261: break;
! 1262: IFQ_POLL(&ifp->if_snd, m0);
! 1263: if (m0 == NULL)
! 1264: break;
! 1265: if (sc->tx_queued >= RAL_TX_LIST_COUNT - 1) {
! 1266: ifp->if_flags |= IFF_OACTIVE;
! 1267: break;
! 1268: }
! 1269: IFQ_DEQUEUE(&ifp->if_snd, m0);
! 1270: #if NBPFILTER > 0
! 1271: if (ifp->if_bpf != NULL)
! 1272: bpf_mtap(ifp->if_bpf, m0, BPF_DIRECTION_OUT);
! 1273: #endif
! 1274: m0 = ieee80211_encap(ifp, m0, &ni);
! 1275: if (m0 == NULL)
! 1276: continue;
! 1277: #if NBPFILTER > 0
! 1278: if (ic->ic_rawbpf != NULL)
! 1279: bpf_mtap(ic->ic_rawbpf, m0, BPF_DIRECTION_OUT);
! 1280: #endif
! 1281: if (ural_tx_data(sc, m0, ni) != 0) {
! 1282: if (ni != NULL)
! 1283: ieee80211_release_node(ic, ni);
! 1284: ifp->if_oerrors++;
! 1285: break;
! 1286: }
! 1287: }
! 1288:
! 1289: sc->sc_tx_timer = 5;
! 1290: ifp->if_timer = 1;
! 1291: }
! 1292: }
! 1293:
! 1294: void
! 1295: ural_watchdog(struct ifnet *ifp)
! 1296: {
! 1297: struct ural_softc *sc = ifp->if_softc;
! 1298:
! 1299: ifp->if_timer = 0;
! 1300:
! 1301: if (sc->sc_tx_timer > 0) {
! 1302: if (--sc->sc_tx_timer == 0) {
! 1303: printf("%s: device timeout\n", sc->sc_dev.dv_xname);
! 1304: /*ural_init(ifp); XXX needs a process context! */
! 1305: ifp->if_oerrors++;
! 1306: return;
! 1307: }
! 1308: ifp->if_timer = 1;
! 1309: }
! 1310:
! 1311: ieee80211_watchdog(ifp);
! 1312: }
! 1313:
! 1314: int
! 1315: ural_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
! 1316: {
! 1317: struct ural_softc *sc = ifp->if_softc;
! 1318: struct ieee80211com *ic = &sc->sc_ic;
! 1319: struct ifaddr *ifa;
! 1320: struct ifreq *ifr;
! 1321: int s, error = 0;
! 1322:
! 1323: s = splnet();
! 1324:
! 1325: switch (cmd) {
! 1326: case SIOCSIFADDR:
! 1327: ifa = (struct ifaddr *)data;
! 1328: ifp->if_flags |= IFF_UP;
! 1329: #ifdef INET
! 1330: if (ifa->ifa_addr->sa_family == AF_INET)
! 1331: arp_ifinit(&ic->ic_ac, ifa);
! 1332: #endif
! 1333: /* FALLTHROUGH */
! 1334: case SIOCSIFFLAGS:
! 1335: if (ifp->if_flags & IFF_UP) {
! 1336: if (ifp->if_flags & IFF_RUNNING)
! 1337: ural_update_promisc(sc);
! 1338: else
! 1339: ural_init(ifp);
! 1340: } else {
! 1341: if (ifp->if_flags & IFF_RUNNING)
! 1342: ural_stop(ifp, 1);
! 1343: }
! 1344: break;
! 1345:
! 1346: case SIOCADDMULTI:
! 1347: case SIOCDELMULTI:
! 1348: ifr = (struct ifreq *)data;
! 1349: error = (cmd == SIOCADDMULTI) ?
! 1350: ether_addmulti(ifr, &ic->ic_ac) :
! 1351: ether_delmulti(ifr, &ic->ic_ac);
! 1352:
! 1353: if (error == ENETRESET)
! 1354: error = 0;
! 1355: break;
! 1356:
! 1357: case SIOCS80211CHANNEL:
! 1358: /*
! 1359: * This allows for fast channel switching in monitor mode
! 1360: * (used by kismet). In IBSS mode, we must explicitly reset
! 1361: * the interface to generate a new beacon frame.
! 1362: */
! 1363: error = ieee80211_ioctl(ifp, cmd, data);
! 1364: if (error == ENETRESET &&
! 1365: ic->ic_opmode == IEEE80211_M_MONITOR) {
! 1366: if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
! 1367: (IFF_UP | IFF_RUNNING))
! 1368: ural_set_chan(sc, ic->ic_ibss_chan);
! 1369: error = 0;
! 1370: }
! 1371: break;
! 1372:
! 1373: default:
! 1374: error = ieee80211_ioctl(ifp, cmd, data);
! 1375: }
! 1376:
! 1377: if (error == ENETRESET) {
! 1378: if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
! 1379: (IFF_UP | IFF_RUNNING))
! 1380: ural_init(ifp);
! 1381: error = 0;
! 1382: }
! 1383:
! 1384: splx(s);
! 1385:
! 1386: return error;
! 1387: }
! 1388:
! 1389: void
! 1390: ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len)
! 1391: {
! 1392: usb_device_request_t req;
! 1393: usbd_status error;
! 1394:
! 1395: req.bmRequestType = UT_READ_VENDOR_DEVICE;
! 1396: req.bRequest = RAL_READ_EEPROM;
! 1397: USETW(req.wValue, 0);
! 1398: USETW(req.wIndex, addr);
! 1399: USETW(req.wLength, len);
! 1400:
! 1401: error = usbd_do_request(sc->sc_udev, &req, buf);
! 1402: if (error != 0) {
! 1403: printf("%s: could not read EEPROM: %s\n",
! 1404: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1405: }
! 1406: }
! 1407:
! 1408: uint16_t
! 1409: ural_read(struct ural_softc *sc, uint16_t reg)
! 1410: {
! 1411: usb_device_request_t req;
! 1412: usbd_status error;
! 1413: uint16_t val;
! 1414:
! 1415: req.bmRequestType = UT_READ_VENDOR_DEVICE;
! 1416: req.bRequest = RAL_READ_MAC;
! 1417: USETW(req.wValue, 0);
! 1418: USETW(req.wIndex, reg);
! 1419: USETW(req.wLength, sizeof (uint16_t));
! 1420:
! 1421: error = usbd_do_request(sc->sc_udev, &req, &val);
! 1422: if (error != 0) {
! 1423: printf("%s: could not read MAC register: %s\n",
! 1424: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1425: return 0;
! 1426: }
! 1427: return letoh16(val);
! 1428: }
! 1429:
! 1430: void
! 1431: ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
! 1432: {
! 1433: usb_device_request_t req;
! 1434: usbd_status error;
! 1435:
! 1436: req.bmRequestType = UT_READ_VENDOR_DEVICE;
! 1437: req.bRequest = RAL_READ_MULTI_MAC;
! 1438: USETW(req.wValue, 0);
! 1439: USETW(req.wIndex, reg);
! 1440: USETW(req.wLength, len);
! 1441:
! 1442: error = usbd_do_request(sc->sc_udev, &req, buf);
! 1443: if (error != 0) {
! 1444: printf("%s: could not read MAC register: %s\n",
! 1445: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1446: }
! 1447: }
! 1448:
! 1449: void
! 1450: ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val)
! 1451: {
! 1452: usb_device_request_t req;
! 1453: usbd_status error;
! 1454:
! 1455: req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
! 1456: req.bRequest = RAL_WRITE_MAC;
! 1457: USETW(req.wValue, val);
! 1458: USETW(req.wIndex, reg);
! 1459: USETW(req.wLength, 0);
! 1460:
! 1461: error = usbd_do_request(sc->sc_udev, &req, NULL);
! 1462: if (error != 0) {
! 1463: printf("%s: could not write MAC register: %s\n",
! 1464: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1465: }
! 1466: }
! 1467:
! 1468: void
! 1469: ural_write_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
! 1470: {
! 1471: usb_device_request_t req;
! 1472: usbd_status error;
! 1473:
! 1474: req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
! 1475: req.bRequest = RAL_WRITE_MULTI_MAC;
! 1476: USETW(req.wValue, 0);
! 1477: USETW(req.wIndex, reg);
! 1478: USETW(req.wLength, len);
! 1479:
! 1480: error = usbd_do_request(sc->sc_udev, &req, buf);
! 1481: if (error != 0) {
! 1482: printf("%s: could not write MAC register: %s\n",
! 1483: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1484: }
! 1485: }
! 1486:
! 1487: void
! 1488: ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val)
! 1489: {
! 1490: uint16_t tmp;
! 1491: int ntries;
! 1492:
! 1493: for (ntries = 0; ntries < 5; ntries++) {
! 1494: if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
! 1495: break;
! 1496: }
! 1497: if (ntries == 5) {
! 1498: printf("%s: could not write to BBP\n", sc->sc_dev.dv_xname);
! 1499: return;
! 1500: }
! 1501:
! 1502: tmp = reg << 8 | val;
! 1503: ural_write(sc, RAL_PHY_CSR7, tmp);
! 1504: }
! 1505:
! 1506: uint8_t
! 1507: ural_bbp_read(struct ural_softc *sc, uint8_t reg)
! 1508: {
! 1509: uint16_t val;
! 1510: int ntries;
! 1511:
! 1512: val = RAL_BBP_WRITE | reg << 8;
! 1513: ural_write(sc, RAL_PHY_CSR7, val);
! 1514:
! 1515: for (ntries = 0; ntries < 5; ntries++) {
! 1516: if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
! 1517: break;
! 1518: }
! 1519: if (ntries == 5) {
! 1520: printf("%s: could not read BBP\n", sc->sc_dev.dv_xname);
! 1521: return 0;
! 1522: }
! 1523: return ural_read(sc, RAL_PHY_CSR7) & 0xff;
! 1524: }
! 1525:
! 1526: void
! 1527: ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val)
! 1528: {
! 1529: uint32_t tmp;
! 1530: int ntries;
! 1531:
! 1532: for (ntries = 0; ntries < 5; ntries++) {
! 1533: if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY))
! 1534: break;
! 1535: }
! 1536: if (ntries == 5) {
! 1537: printf("%s: could not write to RF\n", sc->sc_dev.dv_xname);
! 1538: return;
! 1539: }
! 1540:
! 1541: tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3);
! 1542: ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff);
! 1543: ural_write(sc, RAL_PHY_CSR10, tmp >> 16);
! 1544:
! 1545: /* remember last written value in sc */
! 1546: sc->rf_regs[reg] = val;
! 1547:
! 1548: DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff));
! 1549: }
! 1550:
! 1551: void
! 1552: ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c)
! 1553: {
! 1554: struct ieee80211com *ic = &sc->sc_ic;
! 1555: uint8_t power, tmp;
! 1556: u_int chan;
! 1557:
! 1558: chan = ieee80211_chan2ieee(ic, c);
! 1559: if (chan == 0 || chan == IEEE80211_CHAN_ANY)
! 1560: return;
! 1561:
! 1562: power = min(sc->txpow[chan - 1], 31);
! 1563:
! 1564: DPRINTFN(2, ("setting channel to %u, txpower to %u\n", chan, power));
! 1565:
! 1566: switch (sc->rf_rev) {
! 1567: case RAL_RF_2522:
! 1568: ural_rf_write(sc, RAL_RF1, 0x00814);
! 1569: ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]);
! 1570: ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
! 1571: break;
! 1572:
! 1573: case RAL_RF_2523:
! 1574: ural_rf_write(sc, RAL_RF1, 0x08804);
! 1575: ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]);
! 1576: ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
! 1577: ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
! 1578: break;
! 1579:
! 1580: case RAL_RF_2524:
! 1581: ural_rf_write(sc, RAL_RF1, 0x0c808);
! 1582: ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]);
! 1583: ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
! 1584: ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
! 1585: break;
! 1586:
! 1587: case RAL_RF_2525:
! 1588: ural_rf_write(sc, RAL_RF1, 0x08808);
! 1589: ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]);
! 1590: ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
! 1591: ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
! 1592:
! 1593: ural_rf_write(sc, RAL_RF1, 0x08808);
! 1594: ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]);
! 1595: ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
! 1596: ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
! 1597: break;
! 1598:
! 1599: case RAL_RF_2525E:
! 1600: ural_rf_write(sc, RAL_RF1, 0x08808);
! 1601: ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]);
! 1602: ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
! 1603: ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
! 1604: break;
! 1605:
! 1606: case RAL_RF_2526:
! 1607: ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]);
! 1608: ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
! 1609: ural_rf_write(sc, RAL_RF1, 0x08804);
! 1610:
! 1611: ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]);
! 1612: ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
! 1613: ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
! 1614: break;
! 1615: }
! 1616:
! 1617: if (ic->ic_opmode != IEEE80211_M_MONITOR &&
! 1618: ic->ic_state != IEEE80211_S_SCAN) {
! 1619: /* set Japan filter bit for channel 14 */
! 1620: tmp = ural_bbp_read(sc, 70);
! 1621:
! 1622: tmp &= ~RAL_JAPAN_FILTER;
! 1623: if (chan == 14)
! 1624: tmp |= RAL_JAPAN_FILTER;
! 1625:
! 1626: ural_bbp_write(sc, 70, tmp);
! 1627:
! 1628: /* clear CRC errors */
! 1629: ural_read(sc, RAL_STA_CSR0);
! 1630:
! 1631: DELAY(1000); /* RF needs a 1ms delay here */
! 1632: ural_disable_rf_tune(sc);
! 1633: }
! 1634: }
! 1635:
! 1636: /*
! 1637: * Disable RF auto-tuning.
! 1638: */
! 1639: void
! 1640: ural_disable_rf_tune(struct ural_softc *sc)
! 1641: {
! 1642: uint32_t tmp;
! 1643:
! 1644: if (sc->rf_rev != RAL_RF_2523) {
! 1645: tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
! 1646: ural_rf_write(sc, RAL_RF1, tmp);
! 1647: }
! 1648:
! 1649: tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
! 1650: ural_rf_write(sc, RAL_RF3, tmp);
! 1651:
! 1652: DPRINTFN(2, ("disabling RF autotune\n"));
! 1653: }
! 1654:
! 1655: /*
! 1656: * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
! 1657: * synchronization.
! 1658: */
! 1659: void
! 1660: ural_enable_tsf_sync(struct ural_softc *sc)
! 1661: {
! 1662: struct ieee80211com *ic = &sc->sc_ic;
! 1663: uint16_t logcwmin, preload, tmp;
! 1664:
! 1665: /* first, disable TSF synchronization */
! 1666: ural_write(sc, RAL_TXRX_CSR19, 0);
! 1667:
! 1668: tmp = (16 * ic->ic_bss->ni_intval) << 4;
! 1669: ural_write(sc, RAL_TXRX_CSR18, tmp);
! 1670:
! 1671: logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0;
! 1672: preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6;
! 1673: tmp = logcwmin << 12 | preload;
! 1674: ural_write(sc, RAL_TXRX_CSR20, tmp);
! 1675:
! 1676: /* finally, enable TSF synchronization */
! 1677: tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN;
! 1678: if (ic->ic_opmode == IEEE80211_M_STA)
! 1679: tmp |= RAL_ENABLE_TSF_SYNC(1);
! 1680: else
! 1681: tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR;
! 1682: ural_write(sc, RAL_TXRX_CSR19, tmp);
! 1683:
! 1684: DPRINTF(("enabling TSF synchronization\n"));
! 1685: }
! 1686:
! 1687: void
! 1688: ural_update_slot(struct ural_softc *sc)
! 1689: {
! 1690: struct ieee80211com *ic = &sc->sc_ic;
! 1691: uint16_t slottime, sifs, eifs;
! 1692:
! 1693: slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
! 1694:
! 1695: /*
! 1696: * These settings may sound a bit inconsistent but this is what the
! 1697: * reference driver does.
! 1698: */
! 1699: if (ic->ic_curmode == IEEE80211_MODE_11B) {
! 1700: sifs = 16 - RAL_RXTX_TURNAROUND;
! 1701: eifs = 364;
! 1702: } else {
! 1703: sifs = 10 - RAL_RXTX_TURNAROUND;
! 1704: eifs = 64;
! 1705: }
! 1706:
! 1707: ural_write(sc, RAL_MAC_CSR10, slottime);
! 1708: ural_write(sc, RAL_MAC_CSR11, sifs);
! 1709: ural_write(sc, RAL_MAC_CSR12, eifs);
! 1710: }
! 1711:
! 1712: void
! 1713: ural_set_txpreamble(struct ural_softc *sc)
! 1714: {
! 1715: uint16_t tmp;
! 1716:
! 1717: tmp = ural_read(sc, RAL_TXRX_CSR10);
! 1718:
! 1719: tmp &= ~RAL_SHORT_PREAMBLE;
! 1720: if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
! 1721: tmp |= RAL_SHORT_PREAMBLE;
! 1722:
! 1723: ural_write(sc, RAL_TXRX_CSR10, tmp);
! 1724: }
! 1725:
! 1726: void
! 1727: ural_set_basicrates(struct ural_softc *sc)
! 1728: {
! 1729: struct ieee80211com *ic = &sc->sc_ic;
! 1730:
! 1731: /* update basic rate set */
! 1732: if (ic->ic_curmode == IEEE80211_MODE_11B) {
! 1733: /* 11b basic rates: 1, 2Mbps */
! 1734: ural_write(sc, RAL_TXRX_CSR11, 0x3);
! 1735: } else {
! 1736: /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
! 1737: ural_write(sc, RAL_TXRX_CSR11, 0xf);
! 1738: }
! 1739: }
! 1740:
! 1741: void
! 1742: ural_set_bssid(struct ural_softc *sc, const uint8_t *bssid)
! 1743: {
! 1744: uint16_t tmp;
! 1745:
! 1746: tmp = bssid[0] | bssid[1] << 8;
! 1747: ural_write(sc, RAL_MAC_CSR5, tmp);
! 1748:
! 1749: tmp = bssid[2] | bssid[3] << 8;
! 1750: ural_write(sc, RAL_MAC_CSR6, tmp);
! 1751:
! 1752: tmp = bssid[4] | bssid[5] << 8;
! 1753: ural_write(sc, RAL_MAC_CSR7, tmp);
! 1754:
! 1755: DPRINTF(("setting BSSID to %s\n", ether_sprintf((uint8_t *)bssid)));
! 1756: }
! 1757:
! 1758: void
! 1759: ural_set_macaddr(struct ural_softc *sc, const uint8_t *addr)
! 1760: {
! 1761: uint16_t tmp;
! 1762:
! 1763: tmp = addr[0] | addr[1] << 8;
! 1764: ural_write(sc, RAL_MAC_CSR2, tmp);
! 1765:
! 1766: tmp = addr[2] | addr[3] << 8;
! 1767: ural_write(sc, RAL_MAC_CSR3, tmp);
! 1768:
! 1769: tmp = addr[4] | addr[5] << 8;
! 1770: ural_write(sc, RAL_MAC_CSR4, tmp);
! 1771:
! 1772: DPRINTF(("setting MAC address to %s\n",
! 1773: ether_sprintf((uint8_t *)addr)));
! 1774: }
! 1775:
! 1776: void
! 1777: ural_update_promisc(struct ural_softc *sc)
! 1778: {
! 1779: struct ifnet *ifp = &sc->sc_ic.ic_if;
! 1780: uint16_t tmp;
! 1781:
! 1782: tmp = ural_read(sc, RAL_TXRX_CSR2);
! 1783:
! 1784: tmp &= ~RAL_DROP_NOT_TO_ME;
! 1785: if (!(ifp->if_flags & IFF_PROMISC))
! 1786: tmp |= RAL_DROP_NOT_TO_ME;
! 1787:
! 1788: ural_write(sc, RAL_TXRX_CSR2, tmp);
! 1789:
! 1790: DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
! 1791: "entering" : "leaving"));
! 1792: }
! 1793:
! 1794: const char *
! 1795: ural_get_rf(int rev)
! 1796: {
! 1797: switch (rev) {
! 1798: case RAL_RF_2522: return "RT2522";
! 1799: case RAL_RF_2523: return "RT2523";
! 1800: case RAL_RF_2524: return "RT2524";
! 1801: case RAL_RF_2525: return "RT2525";
! 1802: case RAL_RF_2525E: return "RT2525e";
! 1803: case RAL_RF_2526: return "RT2526";
! 1804: case RAL_RF_5222: return "RT5222";
! 1805: default: return "unknown";
! 1806: }
! 1807: }
! 1808:
! 1809: void
! 1810: ural_read_eeprom(struct ural_softc *sc)
! 1811: {
! 1812: struct ieee80211com *ic = &sc->sc_ic;
! 1813: uint16_t val;
! 1814:
! 1815: /* retrieve MAC/BBP type */
! 1816: ural_eeprom_read(sc, RAL_EEPROM_MACBBP, &val, 2);
! 1817: sc->macbbp_rev = letoh16(val);
! 1818:
! 1819: ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2);
! 1820: val = letoh16(val);
! 1821: sc->rf_rev = (val >> 11) & 0x7;
! 1822: sc->hw_radio = (val >> 10) & 0x1;
! 1823: sc->led_mode = (val >> 6) & 0x7;
! 1824: sc->rx_ant = (val >> 4) & 0x3;
! 1825: sc->tx_ant = (val >> 2) & 0x3;
! 1826: sc->nb_ant = val & 0x3;
! 1827:
! 1828: /* read MAC address */
! 1829: ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, ic->ic_myaddr, 6);
! 1830:
! 1831: /* read default values for BBP registers */
! 1832: ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
! 1833:
! 1834: /* read Tx power for all b/g channels */
! 1835: ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14);
! 1836: }
! 1837:
! 1838: int
! 1839: ural_bbp_init(struct ural_softc *sc)
! 1840: {
! 1841: #define N(a) (sizeof (a) / sizeof ((a)[0]))
! 1842: int i, ntries;
! 1843:
! 1844: /* wait for BBP to be ready */
! 1845: for (ntries = 0; ntries < 100; ntries++) {
! 1846: if (ural_bbp_read(sc, RAL_BBP_VERSION) != 0)
! 1847: break;
! 1848: DELAY(1000);
! 1849: }
! 1850: if (ntries == 100) {
! 1851: printf("%s: timeout waiting for BBP\n", sc->sc_dev.dv_xname);
! 1852: return EIO;
! 1853: }
! 1854:
! 1855: /* initialize BBP registers to default values */
! 1856: for (i = 0; i < N(ural_def_bbp); i++)
! 1857: ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val);
! 1858:
! 1859: #if 0
! 1860: /* initialize BBP registers to values stored in EEPROM */
! 1861: for (i = 0; i < 16; i++) {
! 1862: if (sc->bbp_prom[i].reg == 0xff)
! 1863: continue;
! 1864: ural_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
! 1865: }
! 1866: #endif
! 1867:
! 1868: return 0;
! 1869: #undef N
! 1870: }
! 1871:
! 1872: void
! 1873: ural_set_txantenna(struct ural_softc *sc, int antenna)
! 1874: {
! 1875: uint16_t tmp;
! 1876: uint8_t tx;
! 1877:
! 1878: tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK;
! 1879: if (antenna == 1)
! 1880: tx |= RAL_BBP_ANTA;
! 1881: else if (antenna == 2)
! 1882: tx |= RAL_BBP_ANTB;
! 1883: else
! 1884: tx |= RAL_BBP_DIVERSITY;
! 1885:
! 1886: /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
! 1887: if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 ||
! 1888: sc->rf_rev == RAL_RF_5222)
! 1889: tx |= RAL_BBP_FLIPIQ;
! 1890:
! 1891: ural_bbp_write(sc, RAL_BBP_TX, tx);
! 1892:
! 1893: /* update flags in PHY_CSR5 and PHY_CSR6 too */
! 1894: tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7;
! 1895: ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7));
! 1896:
! 1897: tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7;
! 1898: ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7));
! 1899: }
! 1900:
! 1901: void
! 1902: ural_set_rxantenna(struct ural_softc *sc, int antenna)
! 1903: {
! 1904: uint8_t rx;
! 1905:
! 1906: rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK;
! 1907: if (antenna == 1)
! 1908: rx |= RAL_BBP_ANTA;
! 1909: else if (antenna == 2)
! 1910: rx |= RAL_BBP_ANTB;
! 1911: else
! 1912: rx |= RAL_BBP_DIVERSITY;
! 1913:
! 1914: /* need to force no I/Q flip for RF 2525e and 2526 */
! 1915: if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526)
! 1916: rx &= ~RAL_BBP_FLIPIQ;
! 1917:
! 1918: ural_bbp_write(sc, RAL_BBP_RX, rx);
! 1919: }
! 1920:
! 1921: int
! 1922: ural_init(struct ifnet *ifp)
! 1923: {
! 1924: #define N(a) (sizeof (a) / sizeof ((a)[0]))
! 1925: struct ural_softc *sc = ifp->if_softc;
! 1926: struct ieee80211com *ic = &sc->sc_ic;
! 1927: uint16_t tmp;
! 1928: usbd_status error;
! 1929: int i, ntries;
! 1930:
! 1931: ural_stop(ifp, 0);
! 1932:
! 1933: /* initialize MAC registers to default values */
! 1934: for (i = 0; i < N(ural_def_mac); i++)
! 1935: ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val);
! 1936:
! 1937: /* wait for BBP and RF to wake up (this can take a long time!) */
! 1938: for (ntries = 0; ntries < 100; ntries++) {
! 1939: tmp = ural_read(sc, RAL_MAC_CSR17);
! 1940: if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) ==
! 1941: (RAL_BBP_AWAKE | RAL_RF_AWAKE))
! 1942: break;
! 1943: DELAY(1000);
! 1944: }
! 1945: if (ntries == 100) {
! 1946: printf("%s: timeout waiting for BBP/RF to wakeup\n",
! 1947: sc->sc_dev.dv_xname);
! 1948: error = EIO;
! 1949: goto fail;
! 1950: }
! 1951:
! 1952: /* we're ready! */
! 1953: ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY);
! 1954:
! 1955: /* set basic rate set (will be updated later) */
! 1956: ural_write(sc, RAL_TXRX_CSR11, 0x153);
! 1957:
! 1958: error = ural_bbp_init(sc);
! 1959: if (error != 0)
! 1960: goto fail;
! 1961:
! 1962: /* set default BSS channel */
! 1963: ic->ic_bss->ni_chan = ic->ic_ibss_chan;
! 1964: ural_set_chan(sc, ic->ic_bss->ni_chan);
! 1965:
! 1966: /* clear statistic registers (STA_CSR0 to STA_CSR10) */
! 1967: ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
! 1968:
! 1969: /* set default sensitivity */
! 1970: ural_bbp_write(sc, 17, 0x48);
! 1971:
! 1972: ural_set_txantenna(sc, 1);
! 1973: ural_set_rxantenna(sc, 1);
! 1974:
! 1975: IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl));
! 1976: ural_set_macaddr(sc, ic->ic_myaddr);
! 1977:
! 1978: /*
! 1979: * Copy WEP keys into adapter's memory (SEC_CSR0 to SEC_CSR31).
! 1980: */
! 1981: for (i = 0; i < IEEE80211_WEP_NKID; i++) {
! 1982: struct ieee80211_key *k = &ic->ic_nw_keys[i];
! 1983: ural_write_multi(sc, RAL_SEC_CSR0 + i * IEEE80211_KEYBUF_SIZE,
! 1984: k->k_key, IEEE80211_KEYBUF_SIZE);
! 1985: }
! 1986:
! 1987: /*
! 1988: * Allocate xfer for AMRR statistics requests.
! 1989: */
! 1990: sc->amrr_xfer = usbd_alloc_xfer(sc->sc_udev);
! 1991: if (sc->amrr_xfer == NULL) {
! 1992: printf("%s: could not allocate AMRR xfer\n",
! 1993: sc->sc_dev.dv_xname);
! 1994: goto fail;
! 1995: }
! 1996:
! 1997: /*
! 1998: * Open Tx and Rx USB bulk pipes.
! 1999: */
! 2000: error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE,
! 2001: &sc->sc_tx_pipeh);
! 2002: if (error != 0) {
! 2003: printf("%s: could not open Tx pipe: %s\n",
! 2004: sc->sc_dev.dv_xname, usbd_errstr(error));
! 2005: goto fail;
! 2006: }
! 2007: error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
! 2008: &sc->sc_rx_pipeh);
! 2009: if (error != 0) {
! 2010: printf("%s: could not open Rx pipe: %s\n",
! 2011: sc->sc_dev.dv_xname, usbd_errstr(error));
! 2012: goto fail;
! 2013: }
! 2014:
! 2015: /*
! 2016: * Allocate Tx and Rx xfer queues.
! 2017: */
! 2018: error = ural_alloc_tx_list(sc);
! 2019: if (error != 0) {
! 2020: printf("%s: could not allocate Tx list\n",
! 2021: sc->sc_dev.dv_xname);
! 2022: goto fail;
! 2023: }
! 2024: error = ural_alloc_rx_list(sc);
! 2025: if (error != 0) {
! 2026: printf("%s: could not allocate Rx list\n",
! 2027: sc->sc_dev.dv_xname);
! 2028: goto fail;
! 2029: }
! 2030:
! 2031: /*
! 2032: * Start up the receive pipe.
! 2033: */
! 2034: for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
! 2035: struct ural_rx_data *data = &sc->rx_data[i];
! 2036:
! 2037: usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf,
! 2038: MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
! 2039: error = usbd_transfer(data->xfer);
! 2040: if (error != 0 && error != USBD_IN_PROGRESS) {
! 2041: printf("%s: could not queue Rx transfer\n",
! 2042: sc->sc_dev.dv_xname);
! 2043: goto fail;
! 2044: }
! 2045: }
! 2046:
! 2047: /* kick Rx */
! 2048: tmp = RAL_DROP_PHY_ERROR | RAL_DROP_CRC_ERROR;
! 2049: if (ic->ic_opmode != IEEE80211_M_MONITOR) {
! 2050: tmp |= RAL_DROP_CTL | RAL_DROP_VERSION_ERROR;
! 2051: if (ic->ic_opmode != IEEE80211_M_HOSTAP)
! 2052: tmp |= RAL_DROP_TODS;
! 2053: if (!(ifp->if_flags & IFF_PROMISC))
! 2054: tmp |= RAL_DROP_NOT_TO_ME;
! 2055: }
! 2056: ural_write(sc, RAL_TXRX_CSR2, tmp);
! 2057:
! 2058: ifp->if_flags &= ~IFF_OACTIVE;
! 2059: ifp->if_flags |= IFF_RUNNING;
! 2060:
! 2061: if (ic->ic_opmode == IEEE80211_M_MONITOR)
! 2062: ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
! 2063: else
! 2064: ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
! 2065:
! 2066: return 0;
! 2067:
! 2068: fail: ural_stop(ifp, 1);
! 2069: return error;
! 2070: #undef N
! 2071: }
! 2072:
! 2073: void
! 2074: ural_stop(struct ifnet *ifp, int disable)
! 2075: {
! 2076: struct ural_softc *sc = ifp->if_softc;
! 2077: struct ieee80211com *ic = &sc->sc_ic;
! 2078:
! 2079: sc->sc_tx_timer = 0;
! 2080: ifp->if_timer = 0;
! 2081: ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
! 2082:
! 2083: ieee80211_new_state(ic, IEEE80211_S_INIT, -1); /* free all nodes */
! 2084:
! 2085: /* disable Rx */
! 2086: ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX);
! 2087:
! 2088: /* reset ASIC and BBP (but won't reset MAC registers!) */
! 2089: ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP);
! 2090: ural_write(sc, RAL_MAC_CSR1, 0);
! 2091:
! 2092: if (sc->amrr_xfer != NULL) {
! 2093: usbd_free_xfer(sc->amrr_xfer);
! 2094: sc->amrr_xfer = NULL;
! 2095: }
! 2096: if (sc->sc_rx_pipeh != NULL) {
! 2097: usbd_abort_pipe(sc->sc_rx_pipeh);
! 2098: usbd_close_pipe(sc->sc_rx_pipeh);
! 2099: sc->sc_rx_pipeh = NULL;
! 2100: }
! 2101: if (sc->sc_tx_pipeh != NULL) {
! 2102: usbd_abort_pipe(sc->sc_tx_pipeh);
! 2103: usbd_close_pipe(sc->sc_tx_pipeh);
! 2104: sc->sc_tx_pipeh = NULL;
! 2105: }
! 2106:
! 2107: ural_free_rx_list(sc);
! 2108: ural_free_tx_list(sc);
! 2109: }
! 2110:
! 2111: void
! 2112: ural_newassoc(struct ieee80211com *ic, struct ieee80211_node *ni, int isnew)
! 2113: {
! 2114: /* start with lowest Tx rate */
! 2115: ni->ni_txrate = 0;
! 2116: }
! 2117:
! 2118: void
! 2119: ural_amrr_start(struct ural_softc *sc, struct ieee80211_node *ni)
! 2120: {
! 2121: int i;
! 2122:
! 2123: /* clear statistic registers (STA_CSR0 to STA_CSR10) */
! 2124: ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
! 2125:
! 2126: ieee80211_amrr_node_init(&sc->amrr, &sc->amn);
! 2127:
! 2128: /* set rate to some reasonable initial value */
! 2129: for (i = ni->ni_rates.rs_nrates - 1;
! 2130: i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72;
! 2131: i--);
! 2132: ni->ni_txrate = i;
! 2133:
! 2134: timeout_add(&sc->amrr_to, hz);
! 2135: }
! 2136:
! 2137: void
! 2138: ural_amrr_timeout(void *arg)
! 2139: {
! 2140: struct ural_softc *sc = arg;
! 2141: usb_device_request_t req;
! 2142: int s;
! 2143:
! 2144: s = splusb();
! 2145:
! 2146: /*
! 2147: * Asynchronously read statistic registers (cleared by read).
! 2148: */
! 2149: req.bmRequestType = UT_READ_VENDOR_DEVICE;
! 2150: req.bRequest = RAL_READ_MULTI_MAC;
! 2151: USETW(req.wValue, 0);
! 2152: USETW(req.wIndex, RAL_STA_CSR0);
! 2153: USETW(req.wLength, sizeof sc->sta);
! 2154:
! 2155: usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc,
! 2156: USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof sc->sta, 0,
! 2157: ural_amrr_update);
! 2158: (void)usbd_transfer(sc->amrr_xfer);
! 2159:
! 2160: splx(s);
! 2161: }
! 2162:
! 2163: void
! 2164: ural_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv,
! 2165: usbd_status status)
! 2166: {
! 2167: struct ural_softc *sc = (struct ural_softc *)priv;
! 2168: struct ifnet *ifp = &sc->sc_ic.ic_if;
! 2169:
! 2170: if (status != USBD_NORMAL_COMPLETION) {
! 2171: printf("%s: could not retrieve Tx statistics - cancelling "
! 2172: "automatic rate control\n", sc->sc_dev.dv_xname);
! 2173: return;
! 2174: }
! 2175:
! 2176: /* count TX retry-fail as Tx errors */
! 2177: ifp->if_oerrors += letoh16(sc->sta[9]);
! 2178:
! 2179: sc->amn.amn_retrycnt =
! 2180: letoh16(sc->sta[7]) + /* TX one-retry ok count */
! 2181: letoh16(sc->sta[8]) + /* TX more-retry ok count */
! 2182: letoh16(sc->sta[9]); /* TX retry-fail count */
! 2183:
! 2184: sc->amn.amn_txcnt =
! 2185: sc->amn.amn_retrycnt +
! 2186: letoh16(sc->sta[6]); /* TX no-retry ok count */
! 2187:
! 2188: ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn);
! 2189:
! 2190: timeout_add(&sc->amrr_to, hz);
! 2191: }
! 2192:
! 2193: int
! 2194: ural_activate(struct device *self, enum devact act)
! 2195: {
! 2196: switch (act) {
! 2197: case DVACT_ACTIVATE:
! 2198: break;
! 2199:
! 2200: case DVACT_DEACTIVATE:
! 2201: break;
! 2202: }
! 2203:
! 2204: return 0;
! 2205: }
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