Annotation of sys/dev/usb/if_rum.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_rum.c,v 1.64 2007/06/14 10:11:15 mbalmer Exp $ */
! 2:
! 3: /*-
! 4: * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
! 5: * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
! 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 RT2501USB/RT2601USB 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_rumreg.h>
! 68: #include <dev/usb/if_rumvar.h>
! 69:
! 70: #ifdef USB_DEBUG
! 71: #define RUM_DEBUG
! 72: #endif
! 73:
! 74: #ifdef RUM_DEBUG
! 75: #define DPRINTF(x) do { if (rum_debug) printf x; } while (0)
! 76: #define DPRINTFN(n, x) do { if (rum_debug >= (n)) printf x; } while (0)
! 77: int rum_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 rum_devs[] = {
! 85: { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM },
! 86: { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2 },
! 87: { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_3 },
! 88: { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_4 },
! 89: { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700 },
! 90: { USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO },
! 91: { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_1 },
! 92: { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2573_2 },
! 93: { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A },
! 94: { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3 },
! 95: { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GC },
! 96: { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GR },
! 97: { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU2 },
! 98: { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F },
! 99: { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573 },
! 100: { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1 },
! 101: { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340 },
! 102: { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS },
! 103: { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS },
! 104: { USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573 },
! 105: { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573 },
! 106: { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB },
! 107: { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP },
! 108: { USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_WUB320G },
! 109: { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP },
! 110: { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP },
! 111: { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1 },
! 112: { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2 },
! 113: { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3 },
! 114: { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_4 },
! 115: { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573 },
! 116: { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP },
! 117: { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2 },
! 118: { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM },
! 119: { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573 },
! 120: { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2 },
! 121: { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573 },
! 122: { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2 },
! 123: { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671 },
! 124: { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2 },
! 125: { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172 },
! 126: { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573 }
! 127: };
! 128:
! 129: void rum_attachhook(void *);
! 130: int rum_alloc_tx_list(struct rum_softc *);
! 131: void rum_free_tx_list(struct rum_softc *);
! 132: int rum_alloc_rx_list(struct rum_softc *);
! 133: void rum_free_rx_list(struct rum_softc *);
! 134: int rum_media_change(struct ifnet *);
! 135: void rum_next_scan(void *);
! 136: void rum_task(void *);
! 137: int rum_newstate(struct ieee80211com *, enum ieee80211_state, int);
! 138: void rum_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
! 139: void rum_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
! 140: #if NBPFILTER > 0
! 141: uint8_t rum_rxrate(const struct rum_rx_desc *);
! 142: #endif
! 143: int rum_ack_rate(struct ieee80211com *, int);
! 144: uint16_t rum_txtime(int, int, uint32_t);
! 145: uint8_t rum_plcp_signal(int);
! 146: void rum_setup_tx_desc(struct rum_softc *, struct rum_tx_desc *,
! 147: uint32_t, uint16_t, int, int);
! 148: int rum_tx_data(struct rum_softc *, struct mbuf *,
! 149: struct ieee80211_node *);
! 150: void rum_start(struct ifnet *);
! 151: void rum_watchdog(struct ifnet *);
! 152: int rum_ioctl(struct ifnet *, u_long, caddr_t);
! 153: void rum_eeprom_read(struct rum_softc *, uint16_t, void *, int);
! 154: uint32_t rum_read(struct rum_softc *, uint16_t);
! 155: void rum_read_multi(struct rum_softc *, uint16_t, void *, int);
! 156: void rum_write(struct rum_softc *, uint16_t, uint32_t);
! 157: void rum_write_multi(struct rum_softc *, uint16_t, void *, size_t);
! 158: void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
! 159: uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
! 160: void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
! 161: void rum_select_antenna(struct rum_softc *);
! 162: void rum_enable_mrr(struct rum_softc *);
! 163: void rum_set_txpreamble(struct rum_softc *);
! 164: void rum_set_basicrates(struct rum_softc *);
! 165: void rum_select_band(struct rum_softc *,
! 166: struct ieee80211_channel *);
! 167: void rum_set_chan(struct rum_softc *, struct ieee80211_channel *);
! 168: void rum_enable_tsf_sync(struct rum_softc *);
! 169: void rum_update_slot(struct rum_softc *);
! 170: void rum_set_bssid(struct rum_softc *, const uint8_t *);
! 171: void rum_set_macaddr(struct rum_softc *, const uint8_t *);
! 172: void rum_update_promisc(struct rum_softc *);
! 173: const char *rum_get_rf(int);
! 174: void rum_read_eeprom(struct rum_softc *);
! 175: int rum_bbp_init(struct rum_softc *);
! 176: int rum_init(struct ifnet *);
! 177: void rum_stop(struct ifnet *, int);
! 178: int rum_load_microcode(struct rum_softc *, const u_char *, size_t);
! 179: int rum_prepare_beacon(struct rum_softc *);
! 180: void rum_newassoc(struct ieee80211com *, struct ieee80211_node *,
! 181: int);
! 182: void rum_amrr_start(struct rum_softc *, struct ieee80211_node *);
! 183: void rum_amrr_timeout(void *);
! 184: void rum_amrr_update(usbd_xfer_handle, usbd_private_handle,
! 185: usbd_status status);
! 186:
! 187: static const struct {
! 188: uint32_t reg;
! 189: uint32_t val;
! 190: } rum_def_mac[] = {
! 191: RT2573_DEF_MAC
! 192: };
! 193:
! 194: static const struct {
! 195: uint8_t reg;
! 196: uint8_t val;
! 197: } rum_def_bbp[] = {
! 198: RT2573_DEF_BBP
! 199: };
! 200:
! 201: static const struct rfprog {
! 202: uint8_t chan;
! 203: uint32_t r1, r2, r3, r4;
! 204: } rum_rf5226[] = {
! 205: RT2573_RF5226
! 206: }, rum_rf5225[] = {
! 207: RT2573_RF5225
! 208: };
! 209:
! 210: int rum_match(struct device *, void *, void *);
! 211: void rum_attach(struct device *, struct device *, void *);
! 212: int rum_detach(struct device *, int);
! 213: int rum_activate(struct device *, enum devact);
! 214:
! 215: struct cfdriver rum_cd = {
! 216: NULL, "rum", DV_IFNET
! 217: };
! 218:
! 219: const struct cfattach rum_ca = {
! 220: sizeof(struct rum_softc),
! 221: rum_match,
! 222: rum_attach,
! 223: rum_detach,
! 224: rum_activate,
! 225: };
! 226:
! 227: int
! 228: rum_match(struct device *parent, void *match, void *aux)
! 229: {
! 230: struct usb_attach_arg *uaa = aux;
! 231:
! 232: if (uaa->iface != NULL)
! 233: return UMATCH_NONE;
! 234:
! 235: return (usb_lookup(rum_devs, uaa->vendor, uaa->product) != NULL) ?
! 236: UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
! 237: }
! 238:
! 239: void
! 240: rum_attachhook(void *xsc)
! 241: {
! 242: struct rum_softc *sc = xsc;
! 243: const char *name = "rum-rt2573";
! 244: u_char *ucode;
! 245: size_t size;
! 246: int error;
! 247:
! 248: if ((error = loadfirmware(name, &ucode, &size)) != 0) {
! 249: printf("%s: failed loadfirmware of file %s (error %d)\n",
! 250: sc->sc_dev.dv_xname, name, error);
! 251: return;
! 252: }
! 253:
! 254: if (rum_load_microcode(sc, ucode, size) != 0) {
! 255: printf("%s: could not load 8051 microcode\n",
! 256: sc->sc_dev.dv_xname);
! 257: }
! 258:
! 259: free(ucode, M_DEVBUF);
! 260: }
! 261:
! 262: void
! 263: rum_attach(struct device *parent, struct device *self, void *aux)
! 264: {
! 265: struct rum_softc *sc = (struct rum_softc *)self;
! 266: struct usb_attach_arg *uaa = aux;
! 267: struct ieee80211com *ic = &sc->sc_ic;
! 268: struct ifnet *ifp = &ic->ic_if;
! 269: usb_interface_descriptor_t *id;
! 270: usb_endpoint_descriptor_t *ed;
! 271: usbd_status error;
! 272: char *devinfop;
! 273: int i, ntries;
! 274: uint32_t tmp;
! 275:
! 276: sc->sc_udev = uaa->device;
! 277:
! 278: devinfop = usbd_devinfo_alloc(uaa->device, 0);
! 279: printf("\n%s: %s\n", sc->sc_dev.dv_xname, devinfop);
! 280: usbd_devinfo_free(devinfop);
! 281:
! 282: if (usbd_set_config_no(sc->sc_udev, RT2573_CONFIG_NO, 0) != 0) {
! 283: printf("%s: could not set configuration no\n",
! 284: sc->sc_dev.dv_xname);
! 285: return;
! 286: }
! 287:
! 288: /* get the first interface handle */
! 289: error = usbd_device2interface_handle(sc->sc_udev, RT2573_IFACE_INDEX,
! 290: &sc->sc_iface);
! 291: if (error != 0) {
! 292: printf("%s: could not get interface handle\n",
! 293: sc->sc_dev.dv_xname);
! 294: return;
! 295: }
! 296:
! 297: /*
! 298: * Find endpoints.
! 299: */
! 300: id = usbd_get_interface_descriptor(sc->sc_iface);
! 301:
! 302: sc->sc_rx_no = sc->sc_tx_no = -1;
! 303: for (i = 0; i < id->bNumEndpoints; i++) {
! 304: ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
! 305: if (ed == NULL) {
! 306: printf("%s: no endpoint descriptor for iface %d\n",
! 307: sc->sc_dev.dv_xname, i);
! 308: return;
! 309: }
! 310:
! 311: if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
! 312: UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
! 313: sc->sc_rx_no = ed->bEndpointAddress;
! 314: else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
! 315: UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
! 316: sc->sc_tx_no = ed->bEndpointAddress;
! 317: }
! 318: if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
! 319: printf("%s: missing endpoint\n", sc->sc_dev.dv_xname);
! 320: return;
! 321: }
! 322:
! 323: usb_init_task(&sc->sc_task, rum_task, sc);
! 324: timeout_set(&sc->scan_to, rum_next_scan, sc);
! 325:
! 326: sc->amrr.amrr_min_success_threshold = 1;
! 327: sc->amrr.amrr_max_success_threshold = 10;
! 328: timeout_set(&sc->amrr_to, rum_amrr_timeout, sc);
! 329:
! 330: /* retrieve RT2573 rev. no */
! 331: for (ntries = 0; ntries < 1000; ntries++) {
! 332: if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
! 333: break;
! 334: DELAY(1000);
! 335: }
! 336: if (ntries == 1000) {
! 337: printf("%s: timeout waiting for chip to settle\n",
! 338: sc->sc_dev.dv_xname);
! 339: return;
! 340: }
! 341:
! 342: /* retrieve MAC address and various other things from EEPROM */
! 343: rum_read_eeprom(sc);
! 344:
! 345: printf("%s: MAC/BBP RT%04x (rev 0x%05x), RF %s, address %s\n",
! 346: sc->sc_dev.dv_xname, sc->macbbp_rev, tmp,
! 347: rum_get_rf(sc->rf_rev), ether_sprintf(ic->ic_myaddr));
! 348:
! 349: if (rootvp == NULL)
! 350: mountroothook_establish(rum_attachhook, sc);
! 351: else
! 352: rum_attachhook(sc);
! 353:
! 354: ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
! 355: ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
! 356: ic->ic_state = IEEE80211_S_INIT;
! 357:
! 358: /* set device capabilities */
! 359: ic->ic_caps =
! 360: IEEE80211_C_IBSS | /* IBSS mode supported */
! 361: IEEE80211_C_MONITOR | /* monitor mode supported */
! 362: IEEE80211_C_HOSTAP | /* HostAp mode supported */
! 363: IEEE80211_C_TXPMGT | /* tx power management */
! 364: IEEE80211_C_SHPREAMBLE | /* short preamble supported */
! 365: IEEE80211_C_SHSLOT | /* short slot time supported */
! 366: IEEE80211_C_WEP; /* s/w WEP */
! 367:
! 368: if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
! 369: /* set supported .11a rates */
! 370: ic->ic_sup_rates[IEEE80211_MODE_11A] =
! 371: ieee80211_std_rateset_11a;
! 372:
! 373: /* set supported .11a channels */
! 374: for (i = 34; i <= 46; i += 4) {
! 375: ic->ic_channels[i].ic_freq =
! 376: ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
! 377: ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
! 378: }
! 379: for (i = 36; i <= 64; i += 4) {
! 380: ic->ic_channels[i].ic_freq =
! 381: ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
! 382: ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
! 383: }
! 384: for (i = 100; i <= 140; i += 4) {
! 385: ic->ic_channels[i].ic_freq =
! 386: ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
! 387: ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
! 388: }
! 389: for (i = 149; i <= 165; i += 4) {
! 390: ic->ic_channels[i].ic_freq =
! 391: ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
! 392: ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
! 393: }
! 394: }
! 395:
! 396: /* set supported .11b and .11g rates */
! 397: ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b;
! 398: ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g;
! 399:
! 400: /* set supported .11b and .11g channels (1 through 14) */
! 401: for (i = 1; i <= 14; i++) {
! 402: ic->ic_channels[i].ic_freq =
! 403: ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
! 404: ic->ic_channels[i].ic_flags =
! 405: IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
! 406: IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
! 407: }
! 408:
! 409: ifp->if_softc = sc;
! 410: ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
! 411: ifp->if_init = rum_init;
! 412: ifp->if_ioctl = rum_ioctl;
! 413: ifp->if_start = rum_start;
! 414: ifp->if_watchdog = rum_watchdog;
! 415: IFQ_SET_READY(&ifp->if_snd);
! 416: memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
! 417:
! 418: if_attach(ifp);
! 419: ieee80211_ifattach(ifp);
! 420: ic->ic_newassoc = rum_newassoc;
! 421:
! 422: /* override state transition machine */
! 423: sc->sc_newstate = ic->ic_newstate;
! 424: ic->ic_newstate = rum_newstate;
! 425: ieee80211_media_init(ifp, rum_media_change, ieee80211_media_status);
! 426:
! 427: #if NBPFILTER > 0
! 428: bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO,
! 429: sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN);
! 430:
! 431: sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
! 432: sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
! 433: sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT);
! 434:
! 435: sc->sc_txtap_len = sizeof sc->sc_txtapu;
! 436: sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
! 437: sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT);
! 438: #endif
! 439:
! 440: usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
! 441: &sc->sc_dev);
! 442: }
! 443:
! 444: int
! 445: rum_detach(struct device *self, int flags)
! 446: {
! 447: struct rum_softc *sc = (struct rum_softc *)self;
! 448: struct ifnet *ifp = &sc->sc_ic.ic_if;
! 449: int s;
! 450:
! 451: s = splusb();
! 452:
! 453: ieee80211_ifdetach(ifp); /* free all nodes */
! 454: if_detach(ifp);
! 455:
! 456: usb_rem_task(sc->sc_udev, &sc->sc_task);
! 457: timeout_del(&sc->scan_to);
! 458: timeout_del(&sc->amrr_to);
! 459:
! 460: if (sc->amrr_xfer != NULL) {
! 461: usbd_free_xfer(sc->amrr_xfer);
! 462: sc->amrr_xfer = NULL;
! 463: }
! 464: if (sc->sc_rx_pipeh != NULL) {
! 465: usbd_abort_pipe(sc->sc_rx_pipeh);
! 466: usbd_close_pipe(sc->sc_rx_pipeh);
! 467: }
! 468: if (sc->sc_tx_pipeh != NULL) {
! 469: usbd_abort_pipe(sc->sc_tx_pipeh);
! 470: usbd_close_pipe(sc->sc_tx_pipeh);
! 471: }
! 472:
! 473: rum_free_rx_list(sc);
! 474: rum_free_tx_list(sc);
! 475:
! 476: splx(s);
! 477:
! 478: usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
! 479: &sc->sc_dev);
! 480:
! 481: return 0;
! 482: }
! 483:
! 484: int
! 485: rum_alloc_tx_list(struct rum_softc *sc)
! 486: {
! 487: int i, error;
! 488:
! 489: sc->tx_cur = sc->tx_queued = 0;
! 490:
! 491: for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
! 492: struct rum_tx_data *data = &sc->tx_data[i];
! 493:
! 494: data->sc = sc;
! 495:
! 496: data->xfer = usbd_alloc_xfer(sc->sc_udev);
! 497: if (data->xfer == NULL) {
! 498: printf("%s: could not allocate tx xfer\n",
! 499: sc->sc_dev.dv_xname);
! 500: error = ENOMEM;
! 501: goto fail;
! 502: }
! 503: data->buf = usbd_alloc_buffer(data->xfer,
! 504: RT2573_TX_DESC_SIZE + IEEE80211_MAX_LEN);
! 505: if (data->buf == NULL) {
! 506: printf("%s: could not allocate tx buffer\n",
! 507: sc->sc_dev.dv_xname);
! 508: error = ENOMEM;
! 509: goto fail;
! 510: }
! 511: /* clean Tx descriptor */
! 512: bzero(data->buf, RT2573_TX_DESC_SIZE);
! 513: }
! 514:
! 515: return 0;
! 516:
! 517: fail: rum_free_tx_list(sc);
! 518: return error;
! 519: }
! 520:
! 521: void
! 522: rum_free_tx_list(struct rum_softc *sc)
! 523: {
! 524: int i;
! 525:
! 526: for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
! 527: struct rum_tx_data *data = &sc->tx_data[i];
! 528:
! 529: if (data->xfer != NULL) {
! 530: usbd_free_xfer(data->xfer);
! 531: data->xfer = NULL;
! 532: }
! 533: /*
! 534: * The node has already been freed at that point so don't call
! 535: * ieee80211_release_node() here.
! 536: */
! 537: data->ni = NULL;
! 538: }
! 539: }
! 540:
! 541: int
! 542: rum_alloc_rx_list(struct rum_softc *sc)
! 543: {
! 544: int i, error;
! 545:
! 546: for (i = 0; i < RUM_RX_LIST_COUNT; i++) {
! 547: struct rum_rx_data *data = &sc->rx_data[i];
! 548:
! 549: data->sc = sc;
! 550:
! 551: data->xfer = usbd_alloc_xfer(sc->sc_udev);
! 552: if (data->xfer == NULL) {
! 553: printf("%s: could not allocate rx xfer\n",
! 554: sc->sc_dev.dv_xname);
! 555: error = ENOMEM;
! 556: goto fail;
! 557: }
! 558: if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
! 559: printf("%s: could not allocate rx buffer\n",
! 560: sc->sc_dev.dv_xname);
! 561: error = ENOMEM;
! 562: goto fail;
! 563: }
! 564:
! 565: MGETHDR(data->m, M_DONTWAIT, MT_DATA);
! 566: if (data->m == NULL) {
! 567: printf("%s: could not allocate rx mbuf\n",
! 568: sc->sc_dev.dv_xname);
! 569: error = ENOMEM;
! 570: goto fail;
! 571: }
! 572: MCLGET(data->m, M_DONTWAIT);
! 573: if (!(data->m->m_flags & M_EXT)) {
! 574: printf("%s: could not allocate rx mbuf cluster\n",
! 575: sc->sc_dev.dv_xname);
! 576: error = ENOMEM;
! 577: goto fail;
! 578: }
! 579: data->buf = mtod(data->m, uint8_t *);
! 580: }
! 581:
! 582: return 0;
! 583:
! 584: fail: rum_free_tx_list(sc);
! 585: return error;
! 586: }
! 587:
! 588: void
! 589: rum_free_rx_list(struct rum_softc *sc)
! 590: {
! 591: int i;
! 592:
! 593: for (i = 0; i < RUM_RX_LIST_COUNT; i++) {
! 594: struct rum_rx_data *data = &sc->rx_data[i];
! 595:
! 596: if (data->xfer != NULL) {
! 597: usbd_free_xfer(data->xfer);
! 598: data->xfer = NULL;
! 599: }
! 600: if (data->m != NULL) {
! 601: m_freem(data->m);
! 602: data->m = NULL;
! 603: }
! 604: }
! 605: }
! 606:
! 607: int
! 608: rum_media_change(struct ifnet *ifp)
! 609: {
! 610: int error;
! 611:
! 612: error = ieee80211_media_change(ifp);
! 613: if (error != ENETRESET)
! 614: return error;
! 615:
! 616: if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
! 617: rum_init(ifp);
! 618:
! 619: return 0;
! 620: }
! 621:
! 622: /*
! 623: * This function is called periodically (every 200ms) during scanning to
! 624: * switch from one channel to another.
! 625: */
! 626: void
! 627: rum_next_scan(void *arg)
! 628: {
! 629: struct rum_softc *sc = arg;
! 630: struct ieee80211com *ic = &sc->sc_ic;
! 631: struct ifnet *ifp = &ic->ic_if;
! 632:
! 633: if (ic->ic_state == IEEE80211_S_SCAN)
! 634: ieee80211_next_scan(ifp);
! 635: }
! 636:
! 637: void
! 638: rum_task(void *arg)
! 639: {
! 640: struct rum_softc *sc = arg;
! 641: struct ieee80211com *ic = &sc->sc_ic;
! 642: enum ieee80211_state ostate;
! 643: struct ieee80211_node *ni;
! 644: uint32_t tmp;
! 645:
! 646: ostate = ic->ic_state;
! 647:
! 648: switch (sc->sc_state) {
! 649: case IEEE80211_S_INIT:
! 650: if (ostate == IEEE80211_S_RUN) {
! 651: /* abort TSF synchronization */
! 652: tmp = rum_read(sc, RT2573_TXRX_CSR9);
! 653: rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
! 654: }
! 655: break;
! 656:
! 657: case IEEE80211_S_SCAN:
! 658: rum_set_chan(sc, ic->ic_bss->ni_chan);
! 659: timeout_add(&sc->scan_to, hz / 5);
! 660: break;
! 661:
! 662: case IEEE80211_S_AUTH:
! 663: rum_set_chan(sc, ic->ic_bss->ni_chan);
! 664: break;
! 665:
! 666: case IEEE80211_S_ASSOC:
! 667: rum_set_chan(sc, ic->ic_bss->ni_chan);
! 668: break;
! 669:
! 670: case IEEE80211_S_RUN:
! 671: rum_set_chan(sc, ic->ic_bss->ni_chan);
! 672:
! 673: ni = ic->ic_bss;
! 674:
! 675: if (ic->ic_opmode != IEEE80211_M_MONITOR) {
! 676: rum_update_slot(sc);
! 677: rum_enable_mrr(sc);
! 678: rum_set_txpreamble(sc);
! 679: rum_set_basicrates(sc);
! 680: rum_set_bssid(sc, ni->ni_bssid);
! 681: }
! 682:
! 683: if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
! 684: ic->ic_opmode == IEEE80211_M_IBSS)
! 685: rum_prepare_beacon(sc);
! 686:
! 687: if (ic->ic_opmode != IEEE80211_M_MONITOR)
! 688: rum_enable_tsf_sync(sc);
! 689:
! 690: if (ic->ic_opmode == IEEE80211_M_STA) {
! 691: /* fake a join to init the tx rate */
! 692: rum_newassoc(ic, ic->ic_bss, 1);
! 693:
! 694: /* enable automatic rate control in STA mode */
! 695: if (ic->ic_fixed_rate == -1)
! 696: rum_amrr_start(sc, ni);
! 697: }
! 698: break;
! 699: }
! 700:
! 701: sc->sc_newstate(ic, sc->sc_state, sc->sc_arg);
! 702: }
! 703:
! 704: int
! 705: rum_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
! 706: {
! 707: struct rum_softc *sc = ic->ic_if.if_softc;
! 708:
! 709: usb_rem_task(sc->sc_udev, &sc->sc_task);
! 710: timeout_del(&sc->scan_to);
! 711: timeout_del(&sc->amrr_to);
! 712:
! 713: /* do it in a process context */
! 714: sc->sc_state = nstate;
! 715: sc->sc_arg = arg;
! 716: usb_add_task(sc->sc_udev, &sc->sc_task);
! 717: return 0;
! 718: }
! 719:
! 720: /* quickly determine if a given rate is CCK or OFDM */
! 721: #define RUM_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
! 722:
! 723: #define RUM_ACK_SIZE 14 /* 10 + 4(FCS) */
! 724: #define RUM_CTS_SIZE 14 /* 10 + 4(FCS) */
! 725:
! 726: void
! 727: rum_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
! 728: {
! 729: struct rum_tx_data *data = priv;
! 730: struct rum_softc *sc = data->sc;
! 731: struct ieee80211com *ic = &sc->sc_ic;
! 732: struct ifnet *ifp = &ic->ic_if;
! 733: int s;
! 734:
! 735: if (status != USBD_NORMAL_COMPLETION) {
! 736: if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
! 737: return;
! 738:
! 739: printf("%s: could not transmit buffer: %s\n",
! 740: sc->sc_dev.dv_xname, usbd_errstr(status));
! 741:
! 742: if (status == USBD_STALLED)
! 743: usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh);
! 744:
! 745: ifp->if_oerrors++;
! 746: return;
! 747: }
! 748:
! 749: s = splnet();
! 750:
! 751: ieee80211_release_node(ic, data->ni);
! 752: data->ni = NULL;
! 753:
! 754: sc->tx_queued--;
! 755: ifp->if_opackets++;
! 756:
! 757: DPRINTFN(10, ("tx done\n"));
! 758:
! 759: sc->sc_tx_timer = 0;
! 760: ifp->if_flags &= ~IFF_OACTIVE;
! 761: rum_start(ifp);
! 762:
! 763: splx(s);
! 764: }
! 765:
! 766: void
! 767: rum_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
! 768: {
! 769: struct rum_rx_data *data = priv;
! 770: struct rum_softc *sc = data->sc;
! 771: struct ieee80211com *ic = &sc->sc_ic;
! 772: struct ifnet *ifp = &ic->ic_if;
! 773: const struct rum_rx_desc *desc;
! 774: struct ieee80211_frame *wh;
! 775: struct ieee80211_node *ni;
! 776: struct mbuf *mnew, *m;
! 777: int s, len;
! 778:
! 779: if (status != USBD_NORMAL_COMPLETION) {
! 780: if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
! 781: return;
! 782:
! 783: if (status == USBD_STALLED)
! 784: usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
! 785: goto skip;
! 786: }
! 787:
! 788: usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
! 789:
! 790: if (len < RT2573_RX_DESC_SIZE + sizeof (struct ieee80211_frame_min)) {
! 791: DPRINTF(("%s: xfer too short %d\n", sc->sc_dev.dv_xname,
! 792: len));
! 793: ifp->if_ierrors++;
! 794: goto skip;
! 795: }
! 796:
! 797: desc = (const struct rum_rx_desc *)data->buf;
! 798:
! 799: if (letoh32(desc->flags) & RT2573_RX_CRC_ERROR) {
! 800: /*
! 801: * This should not happen since we did not request to receive
! 802: * those frames when we filled RT2573_TXRX_CSR0.
! 803: */
! 804: DPRINTFN(5, ("CRC error\n"));
! 805: ifp->if_ierrors++;
! 806: goto skip;
! 807: }
! 808:
! 809: MGETHDR(mnew, M_DONTWAIT, MT_DATA);
! 810: if (mnew == NULL) {
! 811: printf("%s: could not allocate rx mbuf\n",
! 812: sc->sc_dev.dv_xname);
! 813: ifp->if_ierrors++;
! 814: goto skip;
! 815: }
! 816: MCLGET(mnew, M_DONTWAIT);
! 817: if (!(mnew->m_flags & M_EXT)) {
! 818: printf("%s: could not allocate rx mbuf cluster\n",
! 819: sc->sc_dev.dv_xname);
! 820: m_freem(mnew);
! 821: ifp->if_ierrors++;
! 822: goto skip;
! 823: }
! 824: m = data->m;
! 825: data->m = mnew;
! 826: data->buf = mtod(data->m, uint8_t *);
! 827:
! 828: /* finalize mbuf */
! 829: m->m_pkthdr.rcvif = ifp;
! 830: m->m_data = (caddr_t)(desc + 1);
! 831: m->m_pkthdr.len = m->m_len = (letoh32(desc->flags) >> 16) & 0xfff;
! 832:
! 833: s = splnet();
! 834:
! 835: #if NBPFILTER > 0
! 836: if (sc->sc_drvbpf != NULL) {
! 837: struct mbuf mb;
! 838: struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
! 839:
! 840: tap->wr_flags = 0;
! 841: tap->wr_rate = rum_rxrate(desc);
! 842: tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
! 843: tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
! 844: tap->wr_antenna = sc->rx_ant;
! 845: tap->wr_antsignal = desc->rssi;
! 846:
! 847: mb.m_data = (caddr_t)tap;
! 848: mb.m_len = sc->sc_rxtap_len;
! 849: mb.m_next = m;
! 850: mb.m_nextpkt = NULL;
! 851: mb.m_type = 0;
! 852: mb.m_flags = 0;
! 853: bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN);
! 854: }
! 855: #endif
! 856:
! 857: wh = mtod(m, struct ieee80211_frame *);
! 858: ni = ieee80211_find_rxnode(ic, wh);
! 859:
! 860: /* send the frame to the 802.11 layer */
! 861: ieee80211_input(ifp, m, ni, desc->rssi, 0);
! 862:
! 863: /* node is no longer needed */
! 864: ieee80211_release_node(ic, ni);
! 865:
! 866: /*
! 867: * In HostAP mode, ieee80211_input() will enqueue packets in if_snd
! 868: * without calling if_start().
! 869: */
! 870: if (!IFQ_IS_EMPTY(&ifp->if_snd) && !(ifp->if_flags & IFF_OACTIVE))
! 871: rum_start(ifp);
! 872:
! 873: splx(s);
! 874:
! 875: DPRINTFN(15, ("rx done\n"));
! 876:
! 877: skip: /* setup a new transfer */
! 878: usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES,
! 879: USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof);
! 880: (void)usbd_transfer(xfer);
! 881: }
! 882:
! 883: /*
! 884: * This function is only used by the Rx radiotap code. It returns the rate at
! 885: * which a given frame was received.
! 886: */
! 887: #if NBPFILTER > 0
! 888: uint8_t
! 889: rum_rxrate(const struct rum_rx_desc *desc)
! 890: {
! 891: if (letoh32(desc->flags) & RT2573_RX_OFDM) {
! 892: /* reverse function of rum_plcp_signal */
! 893: switch (desc->rate) {
! 894: case 0xb: return 12;
! 895: case 0xf: return 18;
! 896: case 0xa: return 24;
! 897: case 0xe: return 36;
! 898: case 0x9: return 48;
! 899: case 0xd: return 72;
! 900: case 0x8: return 96;
! 901: case 0xc: return 108;
! 902: }
! 903: } else {
! 904: if (desc->rate == 10)
! 905: return 2;
! 906: if (desc->rate == 20)
! 907: return 4;
! 908: if (desc->rate == 55)
! 909: return 11;
! 910: if (desc->rate == 110)
! 911: return 22;
! 912: }
! 913: return 2; /* should not get there */
! 914: }
! 915: #endif
! 916:
! 917: /*
! 918: * Return the expected ack rate for a frame transmitted at rate `rate'.
! 919: */
! 920: int
! 921: rum_ack_rate(struct ieee80211com *ic, int rate)
! 922: {
! 923: switch (rate) {
! 924: /* CCK rates */
! 925: case 2:
! 926: return 2;
! 927: case 4:
! 928: case 11:
! 929: case 22:
! 930: return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate;
! 931:
! 932: /* OFDM rates */
! 933: case 12:
! 934: case 18:
! 935: return 12;
! 936: case 24:
! 937: case 36:
! 938: return 24;
! 939: case 48:
! 940: case 72:
! 941: case 96:
! 942: case 108:
! 943: return 48;
! 944: }
! 945:
! 946: /* default to 1Mbps */
! 947: return 2;
! 948: }
! 949:
! 950: /*
! 951: * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'.
! 952: * The function automatically determines the operating mode depending on the
! 953: * given rate. `flags' indicates whether short preamble is in use or not.
! 954: */
! 955: uint16_t
! 956: rum_txtime(int len, int rate, uint32_t flags)
! 957: {
! 958: uint16_t txtime;
! 959:
! 960: if (RUM_RATE_IS_OFDM(rate)) {
! 961: /* IEEE Std 802.11a-1999, pp. 37 */
! 962: txtime = (8 + 4 * len + 3 + rate - 1) / rate;
! 963: txtime = 16 + 4 + 4 * txtime + 6;
! 964: } else {
! 965: /* IEEE Std 802.11b-1999, pp. 28 */
! 966: txtime = (16 * len + rate - 1) / rate;
! 967: if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE))
! 968: txtime += 72 + 24;
! 969: else
! 970: txtime += 144 + 48;
! 971: }
! 972: return txtime;
! 973: }
! 974:
! 975: uint8_t
! 976: rum_plcp_signal(int rate)
! 977: {
! 978: switch (rate) {
! 979: /* CCK rates (returned values are device-dependent) */
! 980: case 2: return 0x0;
! 981: case 4: return 0x1;
! 982: case 11: return 0x2;
! 983: case 22: return 0x3;
! 984:
! 985: /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
! 986: case 12: return 0xb;
! 987: case 18: return 0xf;
! 988: case 24: return 0xa;
! 989: case 36: return 0xe;
! 990: case 48: return 0x9;
! 991: case 72: return 0xd;
! 992: case 96: return 0x8;
! 993: case 108: return 0xc;
! 994:
! 995: /* unsupported rates (should not get there) */
! 996: default: return 0xff;
! 997: }
! 998: }
! 999:
! 1000: void
! 1001: rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
! 1002: uint32_t flags, uint16_t xflags, int len, int rate)
! 1003: {
! 1004: struct ieee80211com *ic = &sc->sc_ic;
! 1005: uint16_t plcp_length;
! 1006: int remainder;
! 1007:
! 1008: desc->flags = htole32(flags);
! 1009: desc->flags |= htole32(RT2573_TX_VALID);
! 1010: desc->flags |= htole32(len << 16);
! 1011:
! 1012: desc->xflags = htole16(xflags);
! 1013:
! 1014: desc->wme = htole16(
! 1015: RT2573_QID(0) |
! 1016: RT2573_AIFSN(2) |
! 1017: RT2573_LOGCWMIN(4) |
! 1018: RT2573_LOGCWMAX(10));
! 1019:
! 1020: /* setup PLCP fields */
! 1021: desc->plcp_signal = rum_plcp_signal(rate);
! 1022: desc->plcp_service = 4;
! 1023:
! 1024: len += IEEE80211_CRC_LEN;
! 1025: if (RUM_RATE_IS_OFDM(rate)) {
! 1026: desc->flags |= htole32(RT2573_TX_OFDM);
! 1027:
! 1028: plcp_length = len & 0xfff;
! 1029: desc->plcp_length_hi = plcp_length >> 6;
! 1030: desc->plcp_length_lo = plcp_length & 0x3f;
! 1031: } else {
! 1032: plcp_length = (16 * len + rate - 1) / rate;
! 1033: if (rate == 22) {
! 1034: remainder = (16 * len) % 22;
! 1035: if (remainder != 0 && remainder < 7)
! 1036: desc->plcp_service |= RT2573_PLCP_LENGEXT;
! 1037: }
! 1038: desc->plcp_length_hi = plcp_length >> 8;
! 1039: desc->plcp_length_lo = plcp_length & 0xff;
! 1040:
! 1041: if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
! 1042: desc->plcp_signal |= 0x08;
! 1043: }
! 1044: }
! 1045:
! 1046: #define RUM_TX_TIMEOUT 5000
! 1047:
! 1048: int
! 1049: rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
! 1050: {
! 1051: struct ieee80211com *ic = &sc->sc_ic;
! 1052: struct ifnet *ifp = &ic->ic_if;
! 1053: struct rum_tx_desc *desc;
! 1054: struct rum_tx_data *data;
! 1055: struct ieee80211_frame *wh;
! 1056: uint32_t flags = 0;
! 1057: uint16_t dur;
! 1058: usbd_status error;
! 1059: int rate, xferlen, pktlen, needrts = 0, needcts = 0;
! 1060:
! 1061: wh = mtod(m0, struct ieee80211_frame *);
! 1062:
! 1063: if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
! 1064: m0 = ieee80211_wep_crypt(ifp, m0, 1);
! 1065: if (m0 == NULL)
! 1066: return ENOBUFS;
! 1067:
! 1068: /* packet header may have moved, reset our local pointer */
! 1069: wh = mtod(m0, struct ieee80211_frame *);
! 1070: }
! 1071:
! 1072: /* compute actual packet length (including CRC and crypto overhead) */
! 1073: pktlen = m0->m_pkthdr.len + IEEE80211_CRC_LEN;
! 1074:
! 1075: /* pickup a rate */
! 1076: if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
! 1077: ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
! 1078: IEEE80211_FC0_TYPE_MGT)) {
! 1079: /* mgmt/multicast frames are sent at the lowest avail. rate */
! 1080: rate = ni->ni_rates.rs_rates[0];
! 1081: } else if (ic->ic_fixed_rate != -1) {
! 1082: rate = ic->ic_sup_rates[ic->ic_curmode].
! 1083: rs_rates[ic->ic_fixed_rate];
! 1084: } else
! 1085: rate = ni->ni_rates.rs_rates[ni->ni_txrate];
! 1086: if (rate == 0)
! 1087: rate = 2; /* XXX should not happen */
! 1088: rate &= IEEE80211_RATE_VAL;
! 1089:
! 1090: /* check if RTS/CTS or CTS-to-self protection must be used */
! 1091: if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
! 1092: /* multicast frames are not sent at OFDM rates in 802.11b/g */
! 1093: if (pktlen > ic->ic_rtsthreshold) {
! 1094: needrts = 1; /* RTS/CTS based on frame length */
! 1095: } else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
! 1096: RUM_RATE_IS_OFDM(rate)) {
! 1097: if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
! 1098: needcts = 1; /* CTS-to-self */
! 1099: else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
! 1100: needrts = 1; /* RTS/CTS */
! 1101: }
! 1102: }
! 1103: if (needrts || needcts) {
! 1104: struct mbuf *mprot;
! 1105: int protrate, ackrate;
! 1106: uint16_t dur;
! 1107:
! 1108: protrate = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? 12 : 2;
! 1109: ackrate = rum_ack_rate(ic, rate);
! 1110:
! 1111: dur = rum_txtime(pktlen, rate, ic->ic_flags) +
! 1112: rum_txtime(RUM_ACK_SIZE, ackrate, ic->ic_flags) +
! 1113: 2 * sc->sifs;
! 1114: if (needrts) {
! 1115: dur += rum_txtime(RUM_CTS_SIZE, rum_ack_rate(ic,
! 1116: protrate), ic->ic_flags) + sc->sifs;
! 1117: mprot = ieee80211_get_rts(ic, wh, dur);
! 1118: } else {
! 1119: mprot = ieee80211_get_cts_to_self(ic, dur);
! 1120: }
! 1121: if (mprot == NULL) {
! 1122: printf("%s: could not allocate protection frame\n",
! 1123: sc->sc_dev.dv_xname);
! 1124: m_freem(m0);
! 1125: return ENOBUFS;
! 1126: }
! 1127:
! 1128: data = &sc->tx_data[sc->tx_cur];
! 1129: desc = (struct rum_tx_desc *)data->buf;
! 1130:
! 1131: /* avoid multiple free() of the same node for each fragment */
! 1132: data->ni = ieee80211_ref_node(ni);
! 1133:
! 1134: m_copydata(mprot, 0, mprot->m_pkthdr.len,
! 1135: data->buf + RT2573_TX_DESC_SIZE);
! 1136: rum_setup_tx_desc(sc, desc,
! 1137: (needrts ? RT2573_TX_NEED_ACK : 0) | RT2573_TX_MORE_FRAG,
! 1138: 0, mprot->m_pkthdr.len, protrate);
! 1139:
! 1140: /* no roundup necessary here */
! 1141: xferlen = RT2573_TX_DESC_SIZE + mprot->m_pkthdr.len;
! 1142:
! 1143: /* XXX may want to pass the protection frame to BPF */
! 1144:
! 1145: /* mbuf is no longer needed */
! 1146: m_freem(mprot);
! 1147:
! 1148: usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
! 1149: xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY,
! 1150: RUM_TX_TIMEOUT, rum_txeof);
! 1151: error = usbd_transfer(data->xfer);
! 1152: if (error != 0 && error != USBD_IN_PROGRESS) {
! 1153: m_freem(m0);
! 1154: return error;
! 1155: }
! 1156:
! 1157: sc->tx_queued++;
! 1158: sc->tx_cur = (sc->tx_cur + 1) % RUM_TX_LIST_COUNT;
! 1159:
! 1160: flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
! 1161: }
! 1162:
! 1163: data = &sc->tx_data[sc->tx_cur];
! 1164: desc = (struct rum_tx_desc *)data->buf;
! 1165:
! 1166: data->ni = ni;
! 1167:
! 1168: if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
! 1169: flags |= RT2573_TX_NEED_ACK;
! 1170:
! 1171: dur = rum_txtime(RUM_ACK_SIZE, rum_ack_rate(ic, rate),
! 1172: ic->ic_flags) + sc->sifs;
! 1173: *(uint16_t *)wh->i_dur = htole16(dur);
! 1174:
! 1175: /* tell hardware to set timestamp in probe responses */
! 1176: if ((wh->i_fc[0] &
! 1177: (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
! 1178: (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
! 1179: flags |= RT2573_TX_TIMESTAMP;
! 1180: }
! 1181:
! 1182: #if NBPFILTER > 0
! 1183: if (sc->sc_drvbpf != NULL) {
! 1184: struct mbuf mb;
! 1185: struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
! 1186:
! 1187: tap->wt_flags = 0;
! 1188: tap->wt_rate = rate;
! 1189: tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
! 1190: tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
! 1191: tap->wt_antenna = sc->tx_ant;
! 1192:
! 1193: mb.m_data = (caddr_t)tap;
! 1194: mb.m_len = sc->sc_txtap_len;
! 1195: mb.m_next = m0;
! 1196: mb.m_nextpkt = NULL;
! 1197: mb.m_type = 0;
! 1198: mb.m_flags = 0;
! 1199: bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_OUT);
! 1200: }
! 1201: #endif
! 1202:
! 1203: m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE);
! 1204: rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate);
! 1205:
! 1206: /* align end on a 4-bytes boundary */
! 1207: xferlen = (RT2573_TX_DESC_SIZE + m0->m_pkthdr.len + 3) & ~3;
! 1208:
! 1209: /*
! 1210: * No space left in the last URB to store the extra 4 bytes, force
! 1211: * sending of another URB.
! 1212: */
! 1213: if ((xferlen % 64) == 0)
! 1214: xferlen += 4;
! 1215:
! 1216: DPRINTFN(10, ("sending frame len=%u rate=%u xfer len=%u\n",
! 1217: m0->m_pkthdr.len + RT2573_TX_DESC_SIZE, rate, xferlen));
! 1218:
! 1219: /* mbuf is no longer needed */
! 1220: m_freem(m0);
! 1221:
! 1222: usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen,
! 1223: USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof);
! 1224: error = usbd_transfer(data->xfer);
! 1225: if (error != 0 && error != USBD_IN_PROGRESS)
! 1226: return error;
! 1227:
! 1228: sc->tx_queued++;
! 1229: sc->tx_cur = (sc->tx_cur + 1) % RUM_TX_LIST_COUNT;
! 1230:
! 1231: return 0;
! 1232: }
! 1233:
! 1234: void
! 1235: rum_start(struct ifnet *ifp)
! 1236: {
! 1237: struct rum_softc *sc = ifp->if_softc;
! 1238: struct ieee80211com *ic = &sc->sc_ic;
! 1239: struct ieee80211_node *ni;
! 1240: struct mbuf *m0;
! 1241:
! 1242: /*
! 1243: * net80211 may still try to send management frames even if the
! 1244: * IFF_RUNNING flag is not set...
! 1245: */
! 1246: if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
! 1247: return;
! 1248:
! 1249: for (;;) {
! 1250: IF_POLL(&ic->ic_mgtq, m0);
! 1251: if (m0 != NULL) {
! 1252: if (sc->tx_queued >= RUM_TX_LIST_COUNT - 1) {
! 1253: ifp->if_flags |= IFF_OACTIVE;
! 1254: break;
! 1255: }
! 1256: IF_DEQUEUE(&ic->ic_mgtq, m0);
! 1257:
! 1258: ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
! 1259: m0->m_pkthdr.rcvif = NULL;
! 1260: #if NBPFILTER > 0
! 1261: if (ic->ic_rawbpf != NULL)
! 1262: bpf_mtap(ic->ic_rawbpf, m0, BPF_DIRECTION_OUT);
! 1263: #endif
! 1264: if (rum_tx_data(sc, m0, ni) != 0)
! 1265: break;
! 1266:
! 1267: } else {
! 1268: if (ic->ic_state != IEEE80211_S_RUN)
! 1269: break;
! 1270: IFQ_POLL(&ifp->if_snd, m0);
! 1271: if (m0 == NULL)
! 1272: break;
! 1273: if (sc->tx_queued >= RUM_TX_LIST_COUNT - 1) {
! 1274: ifp->if_flags |= IFF_OACTIVE;
! 1275: break;
! 1276: }
! 1277: IFQ_DEQUEUE(&ifp->if_snd, m0);
! 1278: #if NBPFILTER > 0
! 1279: if (ifp->if_bpf != NULL)
! 1280: bpf_mtap(ifp->if_bpf, m0, BPF_DIRECTION_OUT);
! 1281: #endif
! 1282: m0 = ieee80211_encap(ifp, m0, &ni);
! 1283: if (m0 == NULL)
! 1284: continue;
! 1285: #if NBPFILTER > 0
! 1286: if (ic->ic_rawbpf != NULL)
! 1287: bpf_mtap(ic->ic_rawbpf, m0, BPF_DIRECTION_OUT);
! 1288: #endif
! 1289: if (rum_tx_data(sc, m0, ni) != 0) {
! 1290: if (ni != NULL)
! 1291: ieee80211_release_node(ic, ni);
! 1292: ifp->if_oerrors++;
! 1293: break;
! 1294: }
! 1295: }
! 1296:
! 1297: sc->sc_tx_timer = 5;
! 1298: ifp->if_timer = 1;
! 1299: }
! 1300: }
! 1301:
! 1302: void
! 1303: rum_watchdog(struct ifnet *ifp)
! 1304: {
! 1305: struct rum_softc *sc = ifp->if_softc;
! 1306:
! 1307: ifp->if_timer = 0;
! 1308:
! 1309: if (sc->sc_tx_timer > 0) {
! 1310: if (--sc->sc_tx_timer == 0) {
! 1311: printf("%s: device timeout\n", sc->sc_dev.dv_xname);
! 1312: /*rum_init(ifp); XXX needs a process context! */
! 1313: ifp->if_oerrors++;
! 1314: return;
! 1315: }
! 1316: ifp->if_timer = 1;
! 1317: }
! 1318:
! 1319: ieee80211_watchdog(ifp);
! 1320: }
! 1321:
! 1322: int
! 1323: rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
! 1324: {
! 1325: struct rum_softc *sc = ifp->if_softc;
! 1326: struct ieee80211com *ic = &sc->sc_ic;
! 1327: struct ifaddr *ifa;
! 1328: struct ifreq *ifr;
! 1329: int s, error = 0;
! 1330:
! 1331: s = splnet();
! 1332:
! 1333: switch (cmd) {
! 1334: case SIOCSIFADDR:
! 1335: ifa = (struct ifaddr *)data;
! 1336: ifp->if_flags |= IFF_UP;
! 1337: #ifdef INET
! 1338: if (ifa->ifa_addr->sa_family == AF_INET)
! 1339: arp_ifinit(&ic->ic_ac, ifa);
! 1340: #endif
! 1341: /* FALLTHROUGH */
! 1342: case SIOCSIFFLAGS:
! 1343: if (ifp->if_flags & IFF_UP) {
! 1344: if (ifp->if_flags & IFF_RUNNING)
! 1345: rum_update_promisc(sc);
! 1346: else
! 1347: rum_init(ifp);
! 1348: } else {
! 1349: if (ifp->if_flags & IFF_RUNNING)
! 1350: rum_stop(ifp, 1);
! 1351: }
! 1352: break;
! 1353:
! 1354: case SIOCADDMULTI:
! 1355: case SIOCDELMULTI:
! 1356: ifr = (struct ifreq *)data;
! 1357: error = (cmd == SIOCADDMULTI) ?
! 1358: ether_addmulti(ifr, &ic->ic_ac) :
! 1359: ether_delmulti(ifr, &ic->ic_ac);
! 1360:
! 1361: if (error == ENETRESET)
! 1362: error = 0;
! 1363: break;
! 1364:
! 1365: case SIOCS80211CHANNEL:
! 1366: /*
! 1367: * This allows for fast channel switching in monitor mode
! 1368: * (used by kismet). In IBSS mode, we must explicitly reset
! 1369: * the interface to generate a new beacon frame.
! 1370: */
! 1371: error = ieee80211_ioctl(ifp, cmd, data);
! 1372: if (error == ENETRESET &&
! 1373: ic->ic_opmode == IEEE80211_M_MONITOR) {
! 1374: if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
! 1375: (IFF_UP | IFF_RUNNING))
! 1376: rum_set_chan(sc, ic->ic_ibss_chan);
! 1377: error = 0;
! 1378: }
! 1379: break;
! 1380:
! 1381: default:
! 1382: error = ieee80211_ioctl(ifp, cmd, data);
! 1383: }
! 1384:
! 1385: if (error == ENETRESET) {
! 1386: if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
! 1387: (IFF_UP | IFF_RUNNING))
! 1388: rum_init(ifp);
! 1389: error = 0;
! 1390: }
! 1391:
! 1392: splx(s);
! 1393:
! 1394: return error;
! 1395: }
! 1396:
! 1397: void
! 1398: rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
! 1399: {
! 1400: usb_device_request_t req;
! 1401: usbd_status error;
! 1402:
! 1403: req.bmRequestType = UT_READ_VENDOR_DEVICE;
! 1404: req.bRequest = RT2573_READ_EEPROM;
! 1405: USETW(req.wValue, 0);
! 1406: USETW(req.wIndex, addr);
! 1407: USETW(req.wLength, len);
! 1408:
! 1409: error = usbd_do_request(sc->sc_udev, &req, buf);
! 1410: if (error != 0) {
! 1411: printf("%s: could not read EEPROM: %s\n",
! 1412: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1413: }
! 1414: }
! 1415:
! 1416: uint32_t
! 1417: rum_read(struct rum_softc *sc, uint16_t reg)
! 1418: {
! 1419: uint32_t val;
! 1420:
! 1421: rum_read_multi(sc, reg, &val, sizeof val);
! 1422:
! 1423: return letoh32(val);
! 1424: }
! 1425:
! 1426: void
! 1427: rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
! 1428: {
! 1429: usb_device_request_t req;
! 1430: usbd_status error;
! 1431:
! 1432: req.bmRequestType = UT_READ_VENDOR_DEVICE;
! 1433: req.bRequest = RT2573_READ_MULTI_MAC;
! 1434: USETW(req.wValue, 0);
! 1435: USETW(req.wIndex, reg);
! 1436: USETW(req.wLength, len);
! 1437:
! 1438: error = usbd_do_request(sc->sc_udev, &req, buf);
! 1439: if (error != 0) {
! 1440: printf("%s: could not multi read MAC register: %s\n",
! 1441: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1442: }
! 1443: }
! 1444:
! 1445: void
! 1446: rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
! 1447: {
! 1448: uint32_t tmp = htole32(val);
! 1449:
! 1450: rum_write_multi(sc, reg, &tmp, sizeof tmp);
! 1451: }
! 1452:
! 1453: void
! 1454: rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
! 1455: {
! 1456: usb_device_request_t req;
! 1457: usbd_status error;
! 1458:
! 1459: req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
! 1460: req.bRequest = RT2573_WRITE_MULTI_MAC;
! 1461: USETW(req.wValue, 0);
! 1462: USETW(req.wIndex, reg);
! 1463: USETW(req.wLength, len);
! 1464:
! 1465: error = usbd_do_request(sc->sc_udev, &req, buf);
! 1466: if (error != 0) {
! 1467: printf("%s: could not multi write MAC register: %s\n",
! 1468: sc->sc_dev.dv_xname, usbd_errstr(error));
! 1469: }
! 1470: }
! 1471:
! 1472: void
! 1473: rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
! 1474: {
! 1475: uint32_t tmp;
! 1476: int ntries;
! 1477:
! 1478: for (ntries = 0; ntries < 5; ntries++) {
! 1479: if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
! 1480: break;
! 1481: }
! 1482: if (ntries == 5) {
! 1483: printf("%s: could not write to BBP\n", sc->sc_dev.dv_xname);
! 1484: return;
! 1485: }
! 1486:
! 1487: tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
! 1488: rum_write(sc, RT2573_PHY_CSR3, tmp);
! 1489: }
! 1490:
! 1491: uint8_t
! 1492: rum_bbp_read(struct rum_softc *sc, uint8_t reg)
! 1493: {
! 1494: uint32_t val;
! 1495: int ntries;
! 1496:
! 1497: for (ntries = 0; ntries < 5; ntries++) {
! 1498: if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
! 1499: break;
! 1500: }
! 1501: if (ntries == 5) {
! 1502: printf("%s: could not read BBP\n", sc->sc_dev.dv_xname);
! 1503: return 0;
! 1504: }
! 1505:
! 1506: val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
! 1507: rum_write(sc, RT2573_PHY_CSR3, val);
! 1508:
! 1509: for (ntries = 0; ntries < 100; ntries++) {
! 1510: val = rum_read(sc, RT2573_PHY_CSR3);
! 1511: if (!(val & RT2573_BBP_BUSY))
! 1512: return val & 0xff;
! 1513: DELAY(1);
! 1514: }
! 1515:
! 1516: printf("%s: could not read BBP\n", sc->sc_dev.dv_xname);
! 1517: return 0;
! 1518: }
! 1519:
! 1520: void
! 1521: rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
! 1522: {
! 1523: uint32_t tmp;
! 1524: int ntries;
! 1525:
! 1526: for (ntries = 0; ntries < 5; ntries++) {
! 1527: if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
! 1528: break;
! 1529: }
! 1530: if (ntries == 5) {
! 1531: printf("%s: could not write to RF\n", sc->sc_dev.dv_xname);
! 1532: return;
! 1533: }
! 1534:
! 1535: tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
! 1536: (reg & 3);
! 1537: rum_write(sc, RT2573_PHY_CSR4, tmp);
! 1538:
! 1539: /* remember last written value in sc */
! 1540: sc->rf_regs[reg] = val;
! 1541:
! 1542: DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff));
! 1543: }
! 1544:
! 1545: void
! 1546: rum_select_antenna(struct rum_softc *sc)
! 1547: {
! 1548: uint8_t bbp4, bbp77;
! 1549: uint32_t tmp;
! 1550:
! 1551: bbp4 = rum_bbp_read(sc, 4);
! 1552: bbp77 = rum_bbp_read(sc, 77);
! 1553:
! 1554: /* TBD */
! 1555:
! 1556: /* make sure Rx is disabled before switching antenna */
! 1557: tmp = rum_read(sc, RT2573_TXRX_CSR0);
! 1558: rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
! 1559:
! 1560: rum_bbp_write(sc, 4, bbp4);
! 1561: rum_bbp_write(sc, 77, bbp77);
! 1562:
! 1563: rum_write(sc, RT2573_TXRX_CSR0, tmp);
! 1564: }
! 1565:
! 1566: /*
! 1567: * Enable multi-rate retries for frames sent at OFDM rates.
! 1568: * In 802.11b/g mode, allow fallback to CCK rates.
! 1569: */
! 1570: void
! 1571: rum_enable_mrr(struct rum_softc *sc)
! 1572: {
! 1573: struct ieee80211com *ic = &sc->sc_ic;
! 1574: uint32_t tmp;
! 1575:
! 1576: tmp = rum_read(sc, RT2573_TXRX_CSR4);
! 1577:
! 1578: tmp &= ~RT2573_MRR_CCK_FALLBACK;
! 1579: if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan))
! 1580: tmp |= RT2573_MRR_CCK_FALLBACK;
! 1581: tmp |= RT2573_MRR_ENABLED;
! 1582:
! 1583: rum_write(sc, RT2573_TXRX_CSR4, tmp);
! 1584: }
! 1585:
! 1586: void
! 1587: rum_set_txpreamble(struct rum_softc *sc)
! 1588: {
! 1589: uint32_t tmp;
! 1590:
! 1591: tmp = rum_read(sc, RT2573_TXRX_CSR4);
! 1592:
! 1593: tmp &= ~RT2573_SHORT_PREAMBLE;
! 1594: if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
! 1595: tmp |= RT2573_SHORT_PREAMBLE;
! 1596:
! 1597: rum_write(sc, RT2573_TXRX_CSR4, tmp);
! 1598: }
! 1599:
! 1600: void
! 1601: rum_set_basicrates(struct rum_softc *sc)
! 1602: {
! 1603: struct ieee80211com *ic = &sc->sc_ic;
! 1604:
! 1605: /* update basic rate set */
! 1606: if (ic->ic_curmode == IEEE80211_MODE_11B) {
! 1607: /* 11b basic rates: 1, 2Mbps */
! 1608: rum_write(sc, RT2573_TXRX_CSR5, 0x3);
! 1609: } else if (ic->ic_curmode == IEEE80211_MODE_11A) {
! 1610: /* 11a basic rates: 6, 12, 24Mbps */
! 1611: rum_write(sc, RT2573_TXRX_CSR5, 0x150);
! 1612: } else {
! 1613: /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
! 1614: rum_write(sc, RT2573_TXRX_CSR5, 0xf);
! 1615: }
! 1616: }
! 1617:
! 1618: /*
! 1619: * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
! 1620: * driver.
! 1621: */
! 1622: void
! 1623: rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
! 1624: {
! 1625: uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
! 1626: uint32_t tmp;
! 1627:
! 1628: /* update all BBP registers that depend on the band */
! 1629: bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
! 1630: bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
! 1631: if (IEEE80211_IS_CHAN_5GHZ(c)) {
! 1632: bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
! 1633: bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
! 1634: }
! 1635: if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
! 1636: (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
! 1637: bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
! 1638: }
! 1639:
! 1640: sc->bbp17 = bbp17;
! 1641: rum_bbp_write(sc, 17, bbp17);
! 1642: rum_bbp_write(sc, 96, bbp96);
! 1643: rum_bbp_write(sc, 104, bbp104);
! 1644:
! 1645: if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
! 1646: (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
! 1647: rum_bbp_write(sc, 75, 0x80);
! 1648: rum_bbp_write(sc, 86, 0x80);
! 1649: rum_bbp_write(sc, 88, 0x80);
! 1650: }
! 1651:
! 1652: rum_bbp_write(sc, 35, bbp35);
! 1653: rum_bbp_write(sc, 97, bbp97);
! 1654: rum_bbp_write(sc, 98, bbp98);
! 1655:
! 1656: tmp = rum_read(sc, RT2573_PHY_CSR0);
! 1657: tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
! 1658: if (IEEE80211_IS_CHAN_2GHZ(c))
! 1659: tmp |= RT2573_PA_PE_2GHZ;
! 1660: else
! 1661: tmp |= RT2573_PA_PE_5GHZ;
! 1662: rum_write(sc, RT2573_PHY_CSR0, tmp);
! 1663:
! 1664: /* 802.11a uses a 16 microseconds short interframe space */
! 1665: sc->sifs = IEEE80211_IS_CHAN_5GHZ(c) ? 16 : 10;
! 1666: }
! 1667:
! 1668: void
! 1669: rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
! 1670: {
! 1671: struct ieee80211com *ic = &sc->sc_ic;
! 1672: const struct rfprog *rfprog;
! 1673: uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
! 1674: int8_t power;
! 1675: u_int i, chan;
! 1676:
! 1677: chan = ieee80211_chan2ieee(ic, c);
! 1678: if (chan == 0 || chan == IEEE80211_CHAN_ANY)
! 1679: return;
! 1680:
! 1681: /* select the appropriate RF settings based on what EEPROM says */
! 1682: rfprog = (sc->rf_rev == RT2573_RF_5225 ||
! 1683: sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
! 1684:
! 1685: /* find the settings for this channel (we know it exists) */
! 1686: for (i = 0; rfprog[i].chan != chan; i++);
! 1687:
! 1688: power = sc->txpow[i];
! 1689: if (power < 0) {
! 1690: bbp94 += power;
! 1691: power = 0;
! 1692: } else if (power > 31) {
! 1693: bbp94 += power - 31;
! 1694: power = 31;
! 1695: }
! 1696:
! 1697: /*
! 1698: * If we are switching from the 2GHz band to the 5GHz band or
! 1699: * vice-versa, BBP registers need to be reprogrammed.
! 1700: */
! 1701: if (c->ic_flags != sc->sc_curchan->ic_flags) {
! 1702: rum_select_band(sc, c);
! 1703: rum_select_antenna(sc);
! 1704: }
! 1705: sc->sc_curchan = c;
! 1706:
! 1707: rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
! 1708: rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
! 1709: rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
! 1710: rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
! 1711:
! 1712: rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
! 1713: rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
! 1714: rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
! 1715: rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
! 1716:
! 1717: rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
! 1718: rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
! 1719: rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
! 1720: rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
! 1721:
! 1722: DELAY(10);
! 1723:
! 1724: /* enable smart mode for MIMO-capable RFs */
! 1725: bbp3 = rum_bbp_read(sc, 3);
! 1726:
! 1727: bbp3 &= ~RT2573_SMART_MODE;
! 1728: if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
! 1729: bbp3 |= RT2573_SMART_MODE;
! 1730:
! 1731: rum_bbp_write(sc, 3, bbp3);
! 1732:
! 1733: if (bbp94 != RT2573_BBPR94_DEFAULT)
! 1734: rum_bbp_write(sc, 94, bbp94);
! 1735: }
! 1736:
! 1737: /*
! 1738: * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
! 1739: * and HostAP operating modes.
! 1740: */
! 1741: void
! 1742: rum_enable_tsf_sync(struct rum_softc *sc)
! 1743: {
! 1744: struct ieee80211com *ic = &sc->sc_ic;
! 1745: uint32_t tmp;
! 1746:
! 1747: if (ic->ic_opmode != IEEE80211_M_STA) {
! 1748: /*
! 1749: * Change default 16ms TBTT adjustment to 8ms.
! 1750: * Must be done before enabling beacon generation.
! 1751: */
! 1752: rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
! 1753: }
! 1754:
! 1755: tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
! 1756:
! 1757: /* set beacon interval (in 1/16ms unit) */
! 1758: tmp |= ic->ic_bss->ni_intval * 16;
! 1759:
! 1760: tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
! 1761: if (ic->ic_opmode == IEEE80211_M_STA)
! 1762: tmp |= RT2573_TSF_MODE(1);
! 1763: else
! 1764: tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
! 1765:
! 1766: rum_write(sc, RT2573_TXRX_CSR9, tmp);
! 1767: }
! 1768:
! 1769: void
! 1770: rum_update_slot(struct rum_softc *sc)
! 1771: {
! 1772: struct ieee80211com *ic = &sc->sc_ic;
! 1773: uint8_t slottime;
! 1774: uint32_t tmp;
! 1775:
! 1776: slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
! 1777:
! 1778: tmp = rum_read(sc, RT2573_MAC_CSR9);
! 1779: tmp = (tmp & ~0xff) | slottime;
! 1780: rum_write(sc, RT2573_MAC_CSR9, tmp);
! 1781:
! 1782: DPRINTF(("setting slot time to %uus\n", slottime));
! 1783: }
! 1784:
! 1785: void
! 1786: rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
! 1787: {
! 1788: uint32_t tmp;
! 1789:
! 1790: tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
! 1791: rum_write(sc, RT2573_MAC_CSR4, tmp);
! 1792:
! 1793: tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
! 1794: rum_write(sc, RT2573_MAC_CSR5, tmp);
! 1795: }
! 1796:
! 1797: void
! 1798: rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
! 1799: {
! 1800: uint32_t tmp;
! 1801:
! 1802: tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
! 1803: rum_write(sc, RT2573_MAC_CSR2, tmp);
! 1804:
! 1805: tmp = addr[4] | addr[5] << 8 | 0xff << 16;
! 1806: rum_write(sc, RT2573_MAC_CSR3, tmp);
! 1807: }
! 1808:
! 1809: void
! 1810: rum_update_promisc(struct rum_softc *sc)
! 1811: {
! 1812: struct ifnet *ifp = &sc->sc_ic.ic_if;
! 1813: uint32_t tmp;
! 1814:
! 1815: tmp = rum_read(sc, RT2573_TXRX_CSR0);
! 1816:
! 1817: tmp &= ~RT2573_DROP_NOT_TO_ME;
! 1818: if (!(ifp->if_flags & IFF_PROMISC))
! 1819: tmp |= RT2573_DROP_NOT_TO_ME;
! 1820:
! 1821: rum_write(sc, RT2573_TXRX_CSR0, tmp);
! 1822:
! 1823: DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
! 1824: "entering" : "leaving"));
! 1825: }
! 1826:
! 1827: const char *
! 1828: rum_get_rf(int rev)
! 1829: {
! 1830: switch (rev) {
! 1831: case RT2573_RF_2527: return "RT2527 (MIMO XR)";
! 1832: case RT2573_RF_2528: return "RT2528";
! 1833: case RT2573_RF_5225: return "RT5225 (MIMO XR)";
! 1834: case RT2573_RF_5226: return "RT5226";
! 1835: default: return "unknown";
! 1836: }
! 1837: }
! 1838:
! 1839: void
! 1840: rum_read_eeprom(struct rum_softc *sc)
! 1841: {
! 1842: struct ieee80211com *ic = &sc->sc_ic;
! 1843: uint16_t val;
! 1844: #ifdef RUM_DEBUG
! 1845: int i;
! 1846: #endif
! 1847:
! 1848: /* read MAC/BBP type */
! 1849: rum_eeprom_read(sc, RT2573_EEPROM_MACBBP, &val, 2);
! 1850: sc->macbbp_rev = letoh16(val);
! 1851:
! 1852: /* read MAC address */
! 1853: rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6);
! 1854:
! 1855: rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
! 1856: val = letoh16(val);
! 1857: sc->rf_rev = (val >> 11) & 0x1f;
! 1858: sc->hw_radio = (val >> 10) & 0x1;
! 1859: sc->rx_ant = (val >> 4) & 0x3;
! 1860: sc->tx_ant = (val >> 2) & 0x3;
! 1861: sc->nb_ant = val & 0x3;
! 1862:
! 1863: DPRINTF(("RF revision=%d\n", sc->rf_rev));
! 1864:
! 1865: rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
! 1866: val = letoh16(val);
! 1867: sc->ext_5ghz_lna = (val >> 6) & 0x1;
! 1868: sc->ext_2ghz_lna = (val >> 4) & 0x1;
! 1869:
! 1870: DPRINTF(("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
! 1871: sc->ext_2ghz_lna, sc->ext_5ghz_lna));
! 1872:
! 1873: rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
! 1874: val = letoh16(val);
! 1875: if ((val & 0xff) != 0xff)
! 1876: sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
! 1877:
! 1878: rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
! 1879: val = letoh16(val);
! 1880: if ((val & 0xff) != 0xff)
! 1881: sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
! 1882:
! 1883: DPRINTF(("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
! 1884: sc->rssi_2ghz_corr, sc->rssi_5ghz_corr));
! 1885:
! 1886: rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
! 1887: val = letoh16(val);
! 1888: if ((val & 0xff) != 0xff)
! 1889: sc->rffreq = val & 0xff;
! 1890:
! 1891: DPRINTF(("RF freq=%d\n", sc->rffreq));
! 1892:
! 1893: /* read Tx power for all a/b/g channels */
! 1894: rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
! 1895: /* XXX default Tx power for 802.11a channels */
! 1896: memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
! 1897: #ifdef RUM_DEBUG
! 1898: for (i = 0; i < 14; i++)
! 1899: DPRINTF(("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]));
! 1900: #endif
! 1901:
! 1902: /* read default values for BBP registers */
! 1903: rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
! 1904: #ifdef RUM_DEBUG
! 1905: for (i = 0; i < 14; i++) {
! 1906: if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
! 1907: continue;
! 1908: DPRINTF(("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
! 1909: sc->bbp_prom[i].val));
! 1910: }
! 1911: #endif
! 1912: }
! 1913:
! 1914: int
! 1915: rum_bbp_init(struct rum_softc *sc)
! 1916: {
! 1917: #define N(a) (sizeof (a) / sizeof ((a)[0]))
! 1918: int i, ntries;
! 1919:
! 1920: /* wait for BBP to be ready */
! 1921: for (ntries = 0; ntries < 100; ntries++) {
! 1922: const uint8_t val = rum_bbp_read(sc, 0);
! 1923: if (val != 0 && val != 0xff)
! 1924: break;
! 1925: DELAY(1000);
! 1926: }
! 1927: if (ntries == 100) {
! 1928: printf("%s: timeout waiting for BBP\n",
! 1929: sc->sc_dev.dv_xname);
! 1930: return EIO;
! 1931: }
! 1932:
! 1933: /* initialize BBP registers to default values */
! 1934: for (i = 0; i < N(rum_def_bbp); i++)
! 1935: rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
! 1936:
! 1937: /* write vendor-specific BBP values (from EEPROM) */
! 1938: for (i = 0; i < 16; i++) {
! 1939: if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
! 1940: continue;
! 1941: rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
! 1942: }
! 1943:
! 1944: return 0;
! 1945: #undef N
! 1946: }
! 1947:
! 1948: int
! 1949: rum_init(struct ifnet *ifp)
! 1950: {
! 1951: #define N(a) (sizeof (a) / sizeof ((a)[0]))
! 1952: struct rum_softc *sc = ifp->if_softc;
! 1953: struct ieee80211com *ic = &sc->sc_ic;
! 1954: uint32_t tmp;
! 1955: usbd_status error;
! 1956: int i, ntries;
! 1957:
! 1958: rum_stop(ifp, 0);
! 1959:
! 1960: /* initialize MAC registers to default values */
! 1961: for (i = 0; i < N(rum_def_mac); i++)
! 1962: rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
! 1963:
! 1964: /* set host ready */
! 1965: rum_write(sc, RT2573_MAC_CSR1, 3);
! 1966: rum_write(sc, RT2573_MAC_CSR1, 0);
! 1967:
! 1968: /* wait for BBP/RF to wakeup */
! 1969: for (ntries = 0; ntries < 1000; ntries++) {
! 1970: if (rum_read(sc, RT2573_MAC_CSR12) & 8)
! 1971: break;
! 1972: rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
! 1973: DELAY(1000);
! 1974: }
! 1975: if (ntries == 1000) {
! 1976: printf("%s: timeout waiting for BBP/RF to wakeup\n",
! 1977: sc->sc_dev.dv_xname);
! 1978: goto fail;
! 1979: }
! 1980:
! 1981: if ((error = rum_bbp_init(sc)) != 0)
! 1982: goto fail;
! 1983:
! 1984: /* select default channel */
! 1985: sc->sc_curchan = ic->ic_bss->ni_chan = ic->ic_ibss_chan;
! 1986: rum_select_band(sc, sc->sc_curchan);
! 1987: rum_select_antenna(sc);
! 1988: rum_set_chan(sc, sc->sc_curchan);
! 1989:
! 1990: /* clear STA registers */
! 1991: rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
! 1992:
! 1993: IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl));
! 1994: rum_set_macaddr(sc, ic->ic_myaddr);
! 1995:
! 1996: /* initialize ASIC */
! 1997: rum_write(sc, RT2573_MAC_CSR1, 4);
! 1998:
! 1999: /*
! 2000: * Allocate xfer for AMRR statistics requests.
! 2001: */
! 2002: sc->amrr_xfer = usbd_alloc_xfer(sc->sc_udev);
! 2003: if (sc->amrr_xfer == NULL) {
! 2004: printf("%s: could not allocate AMRR xfer\n",
! 2005: sc->sc_dev.dv_xname);
! 2006: goto fail;
! 2007: }
! 2008:
! 2009: /*
! 2010: * Open Tx and Rx USB bulk pipes.
! 2011: */
! 2012: error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE,
! 2013: &sc->sc_tx_pipeh);
! 2014: if (error != 0) {
! 2015: printf("%s: could not open Tx pipe: %s\n",
! 2016: sc->sc_dev.dv_xname, usbd_errstr(error));
! 2017: goto fail;
! 2018: }
! 2019: error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
! 2020: &sc->sc_rx_pipeh);
! 2021: if (error != 0) {
! 2022: printf("%s: could not open Rx pipe: %s\n",
! 2023: sc->sc_dev.dv_xname, usbd_errstr(error));
! 2024: goto fail;
! 2025: }
! 2026:
! 2027: /*
! 2028: * Allocate Tx and Rx xfer queues.
! 2029: */
! 2030: error = rum_alloc_tx_list(sc);
! 2031: if (error != 0) {
! 2032: printf("%s: could not allocate Tx list\n",
! 2033: sc->sc_dev.dv_xname);
! 2034: goto fail;
! 2035: }
! 2036: error = rum_alloc_rx_list(sc);
! 2037: if (error != 0) {
! 2038: printf("%s: could not allocate Rx list\n",
! 2039: sc->sc_dev.dv_xname);
! 2040: goto fail;
! 2041: }
! 2042:
! 2043: /*
! 2044: * Start up the receive pipe.
! 2045: */
! 2046: for (i = 0; i < RUM_RX_LIST_COUNT; i++) {
! 2047: struct rum_rx_data *data = &sc->rx_data[i];
! 2048:
! 2049: usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf,
! 2050: MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof);
! 2051: error = usbd_transfer(data->xfer);
! 2052: if (error != 0 && error != USBD_IN_PROGRESS) {
! 2053: printf("%s: could not queue Rx transfer\n",
! 2054: sc->sc_dev.dv_xname);
! 2055: goto fail;
! 2056: }
! 2057: }
! 2058:
! 2059: /* update Rx filter */
! 2060: tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
! 2061:
! 2062: tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
! 2063: if (ic->ic_opmode != IEEE80211_M_MONITOR) {
! 2064: tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
! 2065: RT2573_DROP_ACKCTS;
! 2066: if (ic->ic_opmode != IEEE80211_M_HOSTAP)
! 2067: tmp |= RT2573_DROP_TODS;
! 2068: if (!(ifp->if_flags & IFF_PROMISC))
! 2069: tmp |= RT2573_DROP_NOT_TO_ME;
! 2070: }
! 2071: rum_write(sc, RT2573_TXRX_CSR0, tmp);
! 2072:
! 2073: ifp->if_flags &= ~IFF_OACTIVE;
! 2074: ifp->if_flags |= IFF_RUNNING;
! 2075:
! 2076: if (ic->ic_opmode == IEEE80211_M_MONITOR)
! 2077: ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
! 2078: else
! 2079: ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
! 2080:
! 2081: return 0;
! 2082:
! 2083: fail: rum_stop(ifp, 1);
! 2084: return error;
! 2085: #undef N
! 2086: }
! 2087:
! 2088: void
! 2089: rum_stop(struct ifnet *ifp, int disable)
! 2090: {
! 2091: struct rum_softc *sc = ifp->if_softc;
! 2092: struct ieee80211com *ic = &sc->sc_ic;
! 2093: uint32_t tmp;
! 2094:
! 2095: sc->sc_tx_timer = 0;
! 2096: ifp->if_timer = 0;
! 2097: ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
! 2098:
! 2099: ieee80211_new_state(ic, IEEE80211_S_INIT, -1); /* free all nodes */
! 2100:
! 2101: /* disable Rx */
! 2102: tmp = rum_read(sc, RT2573_TXRX_CSR0);
! 2103: rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
! 2104:
! 2105: /* reset ASIC */
! 2106: rum_write(sc, RT2573_MAC_CSR1, 3);
! 2107: rum_write(sc, RT2573_MAC_CSR1, 0);
! 2108:
! 2109: if (sc->sc_rx_pipeh != NULL) {
! 2110: usbd_abort_pipe(sc->sc_rx_pipeh);
! 2111: usbd_close_pipe(sc->sc_rx_pipeh);
! 2112: sc->sc_rx_pipeh = NULL;
! 2113: }
! 2114: if (sc->sc_tx_pipeh != NULL) {
! 2115: usbd_abort_pipe(sc->sc_tx_pipeh);
! 2116: usbd_close_pipe(sc->sc_tx_pipeh);
! 2117: sc->sc_tx_pipeh = NULL;
! 2118: }
! 2119:
! 2120: rum_free_rx_list(sc);
! 2121: rum_free_tx_list(sc);
! 2122: }
! 2123:
! 2124: int
! 2125: rum_load_microcode(struct rum_softc *sc, const u_char *ucode, size_t size)
! 2126: {
! 2127: usb_device_request_t req;
! 2128: uint16_t reg = RT2573_MCU_CODE_BASE;
! 2129: usbd_status error;
! 2130:
! 2131: /* copy firmware image into NIC */
! 2132: for (; size >= 4; reg += 4, ucode += 4, size -= 4)
! 2133: rum_write(sc, reg, UGETDW(ucode));
! 2134:
! 2135: req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
! 2136: req.bRequest = RT2573_MCU_CNTL;
! 2137: USETW(req.wValue, RT2573_MCU_RUN);
! 2138: USETW(req.wIndex, 0);
! 2139: USETW(req.wLength, 0);
! 2140:
! 2141: error = usbd_do_request(sc->sc_udev, &req, NULL);
! 2142: if (error != 0) {
! 2143: printf("%s: could not run firmware: %s\n",
! 2144: sc->sc_dev.dv_xname, usbd_errstr(error));
! 2145: }
! 2146: return error;
! 2147: }
! 2148:
! 2149: int
! 2150: rum_prepare_beacon(struct rum_softc *sc)
! 2151: {
! 2152: struct ieee80211com *ic = &sc->sc_ic;
! 2153: struct rum_tx_desc desc;
! 2154: struct mbuf *m0;
! 2155: int rate;
! 2156:
! 2157: m0 = ieee80211_beacon_alloc(ic, ic->ic_bss);
! 2158: if (m0 == NULL) {
! 2159: printf("%s: could not allocate beacon frame\n",
! 2160: sc->sc_dev.dv_xname);
! 2161: return ENOBUFS;
! 2162: }
! 2163:
! 2164: /* send beacons at the lowest available rate */
! 2165: rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan) ? 12 : 2;
! 2166:
! 2167: rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
! 2168: m0->m_pkthdr.len, rate);
! 2169:
! 2170: /* copy the first 24 bytes of Tx descriptor into NIC memory */
! 2171: rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
! 2172:
! 2173: /* copy beacon header and payload into NIC memory */
! 2174: rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
! 2175: m0->m_pkthdr.len);
! 2176:
! 2177: m_freem(m0);
! 2178:
! 2179: return 0;
! 2180: }
! 2181:
! 2182: void
! 2183: rum_newassoc(struct ieee80211com *ic, struct ieee80211_node *ni, int isnew)
! 2184: {
! 2185: /* start with lowest Tx rate */
! 2186: ni->ni_txrate = 0;
! 2187: }
! 2188:
! 2189: void
! 2190: rum_amrr_start(struct rum_softc *sc, struct ieee80211_node *ni)
! 2191: {
! 2192: int i;
! 2193:
! 2194: /* clear statistic registers (STA_CSR0 to STA_CSR5) */
! 2195: rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
! 2196:
! 2197: ieee80211_amrr_node_init(&sc->amrr, &sc->amn);
! 2198:
! 2199: /* set rate to some reasonable initial value */
! 2200: for (i = ni->ni_rates.rs_nrates - 1;
! 2201: i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72;
! 2202: i--);
! 2203: ni->ni_txrate = i;
! 2204:
! 2205: timeout_add(&sc->amrr_to, hz);
! 2206: }
! 2207:
! 2208: void
! 2209: rum_amrr_timeout(void *arg)
! 2210: {
! 2211: struct rum_softc *sc = arg;
! 2212: usb_device_request_t req;
! 2213:
! 2214: /*
! 2215: * Asynchronously read statistic registers (cleared by read).
! 2216: */
! 2217: req.bmRequestType = UT_READ_VENDOR_DEVICE;
! 2218: req.bRequest = RT2573_READ_MULTI_MAC;
! 2219: USETW(req.wValue, 0);
! 2220: USETW(req.wIndex, RT2573_STA_CSR0);
! 2221: USETW(req.wLength, sizeof sc->sta);
! 2222:
! 2223: usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc,
! 2224: USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof sc->sta, 0,
! 2225: rum_amrr_update);
! 2226: (void)usbd_transfer(sc->amrr_xfer);
! 2227: }
! 2228:
! 2229: void
! 2230: rum_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv,
! 2231: usbd_status status)
! 2232: {
! 2233: struct rum_softc *sc = (struct rum_softc *)priv;
! 2234: struct ifnet *ifp = &sc->sc_ic.ic_if;
! 2235:
! 2236: if (status != USBD_NORMAL_COMPLETION) {
! 2237: printf("%s: could not retrieve Tx statistics - cancelling "
! 2238: "automatic rate control\n", sc->sc_dev.dv_xname);
! 2239: return;
! 2240: }
! 2241:
! 2242: /* count TX retry-fail as Tx errors */
! 2243: ifp->if_oerrors += letoh32(sc->sta[5]) >> 16;
! 2244:
! 2245: sc->amn.amn_retrycnt =
! 2246: (letoh32(sc->sta[4]) >> 16) + /* TX one-retry ok count */
! 2247: (letoh32(sc->sta[5]) & 0xffff) + /* TX more-retry ok count */
! 2248: (letoh32(sc->sta[5]) >> 16); /* TX retry-fail count */
! 2249:
! 2250: sc->amn.amn_txcnt =
! 2251: sc->amn.amn_retrycnt +
! 2252: (letoh32(sc->sta[4]) & 0xffff); /* TX no-retry ok count */
! 2253:
! 2254: ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn);
! 2255:
! 2256: timeout_add(&sc->amrr_to, hz);
! 2257: }
! 2258:
! 2259: int
! 2260: rum_activate(struct device *self, enum devact act)
! 2261: {
! 2262: switch (act) {
! 2263: case DVACT_ACTIVATE:
! 2264: return EOPNOTSUPP;
! 2265:
! 2266: case DVACT_DEACTIVATE:
! 2267: break;
! 2268: }
! 2269:
! 2270: return 0;
! 2271: }
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