4 * Copyright (c) 2005, 2006
5 * Damien Bergamini <damien.bergamini@free.fr>
7 * Copyright (c) 2006, 2008
8 * Hans Petter Selasky <hselasky@FreeBSD.org>
10 * Permission to use, copy, modify, and distribute this software for any
11 * purpose with or without fee is hereby granted, provided that the above
12 * copyright notice and this permission notice appear in all copies.
14 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
15 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
17 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 * Ralink Technology RT2500USB chipset driver
25 * http://www.ralinktech.com/
28 #include <sys/param.h>
29 #include <sys/sockio.h>
30 #include <sys/sysctl.h>
32 #include <sys/mutex.h>
34 #include <sys/kernel.h>
35 #include <sys/socket.h>
36 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/module.h>
40 #include <sys/endian.h>
43 #include <machine/bus.h>
44 #include <machine/resource.h>
49 #include <net/if_arp.h>
50 #include <net/ethernet.h>
51 #include <net/if_dl.h>
52 #include <net/if_media.h>
53 #include <net/if_types.h>
56 #include <netinet/in.h>
57 #include <netinet/in_systm.h>
58 #include <netinet/in_var.h>
59 #include <netinet/if_ether.h>
60 #include <netinet/ip.h>
63 #include <net80211/ieee80211_var.h>
64 #include <net80211/ieee80211_regdomain.h>
65 #include <net80211/ieee80211_radiotap.h>
66 #include <net80211/ieee80211_ratectl.h>
68 #include <dev/usb/usb.h>
69 #include <dev/usb/usbdi.h>
72 #define USB_DEBUG_VAR ural_debug
73 #include <dev/usb/usb_debug.h>
75 #include <dev/usb/wlan/if_uralreg.h>
76 #include <dev/usb/wlan/if_uralvar.h>
79 static int ural_debug = 0;
81 static SYSCTL_NODE(_hw_usb, OID_AUTO, ural, CTLFLAG_RW, 0, "USB ural");
82 SYSCTL_INT(_hw_usb_ural, OID_AUTO, debug, CTLFLAG_RWTUN, &ural_debug, 0,
86 #define URAL_RSSI(rssi) \
87 ((rssi) > (RAL_NOISE_FLOOR + RAL_RSSI_CORR) ? \
88 ((rssi) - (RAL_NOISE_FLOOR + RAL_RSSI_CORR)) : 0)
90 /* various supported device vendors/products */
91 static const STRUCT_USB_HOST_ID ural_devs[] = {
92 #define URAL_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
93 URAL_DEV(ASUS, WL167G),
94 URAL_DEV(ASUS, RT2570),
95 URAL_DEV(BELKIN, F5D7050),
96 URAL_DEV(BELKIN, F5D7051),
97 URAL_DEV(CISCOLINKSYS, HU200TS),
98 URAL_DEV(CISCOLINKSYS, WUSB54G),
99 URAL_DEV(CISCOLINKSYS, WUSB54GP),
100 URAL_DEV(CONCEPTRONIC2, C54RU),
101 URAL_DEV(DLINK, DWLG122),
102 URAL_DEV(GIGABYTE, GN54G),
103 URAL_DEV(GIGABYTE, GNWBKG),
104 URAL_DEV(GUILLEMOT, HWGUSB254),
105 URAL_DEV(MELCO, KG54),
106 URAL_DEV(MELCO, KG54AI),
107 URAL_DEV(MELCO, KG54YB),
108 URAL_DEV(MELCO, NINWIFI),
109 URAL_DEV(MSI, RT2570),
110 URAL_DEV(MSI, RT2570_2),
111 URAL_DEV(MSI, RT2570_3),
112 URAL_DEV(NOVATECH, NV902),
113 URAL_DEV(RALINK, RT2570),
114 URAL_DEV(RALINK, RT2570_2),
115 URAL_DEV(RALINK, RT2570_3),
116 URAL_DEV(SIEMENS2, WL54G),
117 URAL_DEV(SMC, 2862WG),
118 URAL_DEV(SPHAIRON, UB801R),
119 URAL_DEV(SURECOM, RT2570),
120 URAL_DEV(VTECH, RT2570),
121 URAL_DEV(ZINWELL, RT2570),
125 static usb_callback_t ural_bulk_read_callback;
126 static usb_callback_t ural_bulk_write_callback;
128 static usb_error_t ural_do_request(struct ural_softc *sc,
129 struct usb_device_request *req, void *data);
130 static struct ieee80211vap *ural_vap_create(struct ieee80211com *,
131 const char [IFNAMSIZ], int, enum ieee80211_opmode,
132 int, const uint8_t [IEEE80211_ADDR_LEN],
133 const uint8_t [IEEE80211_ADDR_LEN]);
134 static void ural_vap_delete(struct ieee80211vap *);
135 static void ural_tx_free(struct ural_tx_data *, int);
136 static void ural_setup_tx_list(struct ural_softc *);
137 static void ural_unsetup_tx_list(struct ural_softc *);
138 static int ural_newstate(struct ieee80211vap *,
139 enum ieee80211_state, int);
140 static void ural_setup_tx_desc(struct ural_softc *,
141 struct ural_tx_desc *, uint32_t, int, int);
142 static int ural_tx_bcn(struct ural_softc *, struct mbuf *,
143 struct ieee80211_node *);
144 static int ural_tx_mgt(struct ural_softc *, struct mbuf *,
145 struct ieee80211_node *);
146 static int ural_tx_data(struct ural_softc *, struct mbuf *,
147 struct ieee80211_node *);
148 static void ural_start(struct ifnet *);
149 static int ural_ioctl(struct ifnet *, u_long, caddr_t);
150 static void ural_set_testmode(struct ural_softc *);
151 static void ural_eeprom_read(struct ural_softc *, uint16_t, void *,
153 static uint16_t ural_read(struct ural_softc *, uint16_t);
154 static void ural_read_multi(struct ural_softc *, uint16_t, void *,
156 static void ural_write(struct ural_softc *, uint16_t, uint16_t);
157 static void ural_write_multi(struct ural_softc *, uint16_t, void *,
159 static void ural_bbp_write(struct ural_softc *, uint8_t, uint8_t);
160 static uint8_t ural_bbp_read(struct ural_softc *, uint8_t);
161 static void ural_rf_write(struct ural_softc *, uint8_t, uint32_t);
162 static void ural_scan_start(struct ieee80211com *);
163 static void ural_scan_end(struct ieee80211com *);
164 static void ural_set_channel(struct ieee80211com *);
165 static void ural_set_chan(struct ural_softc *,
166 struct ieee80211_channel *);
167 static void ural_disable_rf_tune(struct ural_softc *);
168 static void ural_enable_tsf_sync(struct ural_softc *);
169 static void ural_enable_tsf(struct ural_softc *);
170 static void ural_update_slot(struct ifnet *);
171 static void ural_set_txpreamble(struct ural_softc *);
172 static void ural_set_basicrates(struct ural_softc *,
173 const struct ieee80211_channel *);
174 static void ural_set_bssid(struct ural_softc *, const uint8_t *);
175 static void ural_set_macaddr(struct ural_softc *, uint8_t *);
176 static void ural_update_promisc(struct ieee80211com *);
177 static void ural_setpromisc(struct ural_softc *);
178 static const char *ural_get_rf(int);
179 static void ural_read_eeprom(struct ural_softc *);
180 static int ural_bbp_init(struct ural_softc *);
181 static void ural_set_txantenna(struct ural_softc *, int);
182 static void ural_set_rxantenna(struct ural_softc *, int);
183 static void ural_init_locked(struct ural_softc *);
184 static void ural_init(void *);
185 static void ural_stop(struct ural_softc *);
186 static int ural_raw_xmit(struct ieee80211_node *, struct mbuf *,
187 const struct ieee80211_bpf_params *);
188 static void ural_ratectl_start(struct ural_softc *,
189 struct ieee80211_node *);
190 static void ural_ratectl_timeout(void *);
191 static void ural_ratectl_task(void *, int);
192 static int ural_pause(struct ural_softc *sc, int timeout);
195 * Default values for MAC registers; values taken from the reference driver.
197 static const struct {
201 { RAL_TXRX_CSR5, 0x8c8d },
202 { RAL_TXRX_CSR6, 0x8b8a },
203 { RAL_TXRX_CSR7, 0x8687 },
204 { RAL_TXRX_CSR8, 0x0085 },
205 { RAL_MAC_CSR13, 0x1111 },
206 { RAL_MAC_CSR14, 0x1e11 },
207 { RAL_TXRX_CSR21, 0xe78f },
208 { RAL_MAC_CSR9, 0xff1d },
209 { RAL_MAC_CSR11, 0x0002 },
210 { RAL_MAC_CSR22, 0x0053 },
211 { RAL_MAC_CSR15, 0x0000 },
212 { RAL_MAC_CSR8, RAL_FRAME_SIZE },
213 { RAL_TXRX_CSR19, 0x0000 },
214 { RAL_TXRX_CSR18, 0x005a },
215 { RAL_PHY_CSR2, 0x0000 },
216 { RAL_TXRX_CSR0, 0x1ec0 },
217 { RAL_PHY_CSR4, 0x000f }
221 * Default values for BBP registers; values taken from the reference driver.
223 static const struct {
262 * Default values for RF register R2 indexed by channel numbers.
264 static const uint32_t ural_rf2522_r2[] = {
265 0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814,
266 0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e
269 static const uint32_t ural_rf2523_r2[] = {
270 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
271 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
274 static const uint32_t ural_rf2524_r2[] = {
275 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
276 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
279 static const uint32_t ural_rf2525_r2[] = {
280 0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d,
281 0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346
284 static const uint32_t ural_rf2525_hi_r2[] = {
285 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345,
286 0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e
289 static const uint32_t ural_rf2525e_r2[] = {
290 0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463,
291 0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b
294 static const uint32_t ural_rf2526_hi_r2[] = {
295 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d, 0x0022d,
296 0x0022e, 0x0022e, 0x0022f, 0x0022d, 0x00240, 0x00240, 0x00241
299 static const uint32_t ural_rf2526_r2[] = {
300 0x00226, 0x00227, 0x00227, 0x00228, 0x00228, 0x00229, 0x00229,
301 0x0022a, 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d
305 * For dual-band RF, RF registers R1 and R4 also depend on channel number;
306 * values taken from the reference driver.
308 static const struct {
314 { 1, 0x08808, 0x0044d, 0x00282 },
315 { 2, 0x08808, 0x0044e, 0x00282 },
316 { 3, 0x08808, 0x0044f, 0x00282 },
317 { 4, 0x08808, 0x00460, 0x00282 },
318 { 5, 0x08808, 0x00461, 0x00282 },
319 { 6, 0x08808, 0x00462, 0x00282 },
320 { 7, 0x08808, 0x00463, 0x00282 },
321 { 8, 0x08808, 0x00464, 0x00282 },
322 { 9, 0x08808, 0x00465, 0x00282 },
323 { 10, 0x08808, 0x00466, 0x00282 },
324 { 11, 0x08808, 0x00467, 0x00282 },
325 { 12, 0x08808, 0x00468, 0x00282 },
326 { 13, 0x08808, 0x00469, 0x00282 },
327 { 14, 0x08808, 0x0046b, 0x00286 },
329 { 36, 0x08804, 0x06225, 0x00287 },
330 { 40, 0x08804, 0x06226, 0x00287 },
331 { 44, 0x08804, 0x06227, 0x00287 },
332 { 48, 0x08804, 0x06228, 0x00287 },
333 { 52, 0x08804, 0x06229, 0x00287 },
334 { 56, 0x08804, 0x0622a, 0x00287 },
335 { 60, 0x08804, 0x0622b, 0x00287 },
336 { 64, 0x08804, 0x0622c, 0x00287 },
338 { 100, 0x08804, 0x02200, 0x00283 },
339 { 104, 0x08804, 0x02201, 0x00283 },
340 { 108, 0x08804, 0x02202, 0x00283 },
341 { 112, 0x08804, 0x02203, 0x00283 },
342 { 116, 0x08804, 0x02204, 0x00283 },
343 { 120, 0x08804, 0x02205, 0x00283 },
344 { 124, 0x08804, 0x02206, 0x00283 },
345 { 128, 0x08804, 0x02207, 0x00283 },
346 { 132, 0x08804, 0x02208, 0x00283 },
347 { 136, 0x08804, 0x02209, 0x00283 },
348 { 140, 0x08804, 0x0220a, 0x00283 },
350 { 149, 0x08808, 0x02429, 0x00281 },
351 { 153, 0x08808, 0x0242b, 0x00281 },
352 { 157, 0x08808, 0x0242d, 0x00281 },
353 { 161, 0x08808, 0x0242f, 0x00281 }
356 static const struct usb_config ural_config[URAL_N_TRANSFER] = {
359 .endpoint = UE_ADDR_ANY,
360 .direction = UE_DIR_OUT,
361 .bufsize = (RAL_FRAME_SIZE + RAL_TX_DESC_SIZE + 4),
362 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
363 .callback = ural_bulk_write_callback,
364 .timeout = 5000, /* ms */
368 .endpoint = UE_ADDR_ANY,
369 .direction = UE_DIR_IN,
370 .bufsize = (RAL_FRAME_SIZE + RAL_RX_DESC_SIZE),
371 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
372 .callback = ural_bulk_read_callback,
376 static device_probe_t ural_match;
377 static device_attach_t ural_attach;
378 static device_detach_t ural_detach;
380 static device_method_t ural_methods[] = {
381 /* Device interface */
382 DEVMETHOD(device_probe, ural_match),
383 DEVMETHOD(device_attach, ural_attach),
384 DEVMETHOD(device_detach, ural_detach),
389 static driver_t ural_driver = {
391 .methods = ural_methods,
392 .size = sizeof(struct ural_softc),
395 static devclass_t ural_devclass;
397 DRIVER_MODULE(ural, uhub, ural_driver, ural_devclass, NULL, NULL);
398 MODULE_DEPEND(ural, usb, 1, 1, 1);
399 MODULE_DEPEND(ural, wlan, 1, 1, 1);
400 MODULE_VERSION(ural, 1);
403 ural_match(device_t self)
405 struct usb_attach_arg *uaa = device_get_ivars(self);
407 if (uaa->usb_mode != USB_MODE_HOST)
409 if (uaa->info.bConfigIndex != 0)
411 if (uaa->info.bIfaceIndex != RAL_IFACE_INDEX)
414 return (usbd_lookup_id_by_uaa(ural_devs, sizeof(ural_devs), uaa));
418 ural_attach(device_t self)
420 struct usb_attach_arg *uaa = device_get_ivars(self);
421 struct ural_softc *sc = device_get_softc(self);
423 struct ieee80211com *ic;
424 uint8_t iface_index, bands;
427 device_set_usb_desc(self);
428 sc->sc_udev = uaa->device;
431 mtx_init(&sc->sc_mtx, device_get_nameunit(self),
432 MTX_NETWORK_LOCK, MTX_DEF);
434 iface_index = RAL_IFACE_INDEX;
435 error = usbd_transfer_setup(uaa->device,
436 &iface_index, sc->sc_xfer, ural_config,
437 URAL_N_TRANSFER, sc, &sc->sc_mtx);
439 device_printf(self, "could not allocate USB transfers, "
440 "err=%s\n", usbd_errstr(error));
445 /* retrieve RT2570 rev. no */
446 sc->asic_rev = ural_read(sc, RAL_MAC_CSR0);
448 /* retrieve MAC address and various other things from EEPROM */
449 ural_read_eeprom(sc);
452 device_printf(self, "MAC/BBP RT2570 (rev 0x%02x), RF %s\n",
453 sc->asic_rev, ural_get_rf(sc->rf_rev));
455 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
457 device_printf(sc->sc_dev, "can not if_alloc()\n");
463 if_initname(ifp, "ural", device_get_unit(sc->sc_dev));
464 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
465 ifp->if_init = ural_init;
466 ifp->if_ioctl = ural_ioctl;
467 ifp->if_start = ural_start;
468 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
469 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
470 IFQ_SET_READY(&ifp->if_snd);
474 ic->ic_name = device_get_nameunit(dev);
475 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
477 /* set device capabilities */
479 IEEE80211_C_STA /* station mode supported */
480 | IEEE80211_C_IBSS /* IBSS mode supported */
481 | IEEE80211_C_MONITOR /* monitor mode supported */
482 | IEEE80211_C_HOSTAP /* HostAp mode supported */
483 | IEEE80211_C_TXPMGT /* tx power management */
484 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
485 | IEEE80211_C_SHSLOT /* short slot time supported */
486 | IEEE80211_C_BGSCAN /* bg scanning supported */
487 | IEEE80211_C_WPA /* 802.11i */
491 setbit(&bands, IEEE80211_MODE_11B);
492 setbit(&bands, IEEE80211_MODE_11G);
493 if (sc->rf_rev == RAL_RF_5222)
494 setbit(&bands, IEEE80211_MODE_11A);
495 ieee80211_init_channels(ic, NULL, &bands);
497 ieee80211_ifattach(ic, sc->sc_bssid);
498 ic->ic_update_promisc = ural_update_promisc;
499 ic->ic_raw_xmit = ural_raw_xmit;
500 ic->ic_scan_start = ural_scan_start;
501 ic->ic_scan_end = ural_scan_end;
502 ic->ic_set_channel = ural_set_channel;
504 ic->ic_vap_create = ural_vap_create;
505 ic->ic_vap_delete = ural_vap_delete;
507 ieee80211_radiotap_attach(ic,
508 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
509 RAL_TX_RADIOTAP_PRESENT,
510 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
511 RAL_RX_RADIOTAP_PRESENT);
514 ieee80211_announce(ic);
520 return (ENXIO); /* failure */
524 ural_detach(device_t self)
526 struct ural_softc *sc = device_get_softc(self);
527 struct ifnet *ifp = sc->sc_ifp;
528 struct ieee80211com *ic;
530 /* stop all USB transfers */
531 usbd_transfer_unsetup(sc->sc_xfer, URAL_N_TRANSFER);
533 /* free TX list, if any */
535 ural_unsetup_tx_list(sc);
540 ieee80211_ifdetach(ic);
543 mtx_destroy(&sc->sc_mtx);
549 ural_do_request(struct ural_softc *sc,
550 struct usb_device_request *req, void *data)
556 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
557 req, data, 0, NULL, 250 /* ms */);
561 DPRINTFN(1, "Control request failed, %s (retrying)\n",
563 if (ural_pause(sc, hz / 100))
569 static struct ieee80211vap *
570 ural_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
571 enum ieee80211_opmode opmode, int flags,
572 const uint8_t bssid[IEEE80211_ADDR_LEN],
573 const uint8_t mac[IEEE80211_ADDR_LEN])
575 struct ural_softc *sc = ic->ic_ifp->if_softc;
576 struct ural_vap *uvp;
577 struct ieee80211vap *vap;
579 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
581 uvp = (struct ural_vap *) malloc(sizeof(struct ural_vap),
582 M_80211_VAP, M_WAITOK | M_ZERO);
586 /* enable s/w bmiss handling for sta mode */
587 ieee80211_vap_setup(ic, vap, name, unit, opmode,
588 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
590 /* override state transition machine */
591 uvp->newstate = vap->iv_newstate;
592 vap->iv_newstate = ural_newstate;
594 usb_callout_init_mtx(&uvp->ratectl_ch, &sc->sc_mtx, 0);
595 TASK_INIT(&uvp->ratectl_task, 0, ural_ratectl_task, uvp);
596 ieee80211_ratectl_init(vap);
597 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
600 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
601 ic->ic_opmode = opmode;
606 ural_vap_delete(struct ieee80211vap *vap)
608 struct ural_vap *uvp = URAL_VAP(vap);
609 struct ieee80211com *ic = vap->iv_ic;
611 usb_callout_drain(&uvp->ratectl_ch);
612 ieee80211_draintask(ic, &uvp->ratectl_task);
613 ieee80211_ratectl_deinit(vap);
614 ieee80211_vap_detach(vap);
615 free(uvp, M_80211_VAP);
619 ural_tx_free(struct ural_tx_data *data, int txerr)
621 struct ural_softc *sc = data->sc;
623 if (data->m != NULL) {
624 if (data->m->m_flags & M_TXCB)
625 ieee80211_process_callback(data->ni, data->m,
626 txerr ? ETIMEDOUT : 0);
630 ieee80211_free_node(data->ni);
633 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
638 ural_setup_tx_list(struct ural_softc *sc)
640 struct ural_tx_data *data;
644 STAILQ_INIT(&sc->tx_q);
645 STAILQ_INIT(&sc->tx_free);
647 for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
648 data = &sc->tx_data[i];
651 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
657 ural_unsetup_tx_list(struct ural_softc *sc)
659 struct ural_tx_data *data;
662 /* make sure any subsequent use of the queues will fail */
664 STAILQ_INIT(&sc->tx_q);
665 STAILQ_INIT(&sc->tx_free);
667 /* free up all node references and mbufs */
668 for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
669 data = &sc->tx_data[i];
671 if (data->m != NULL) {
675 if (data->ni != NULL) {
676 ieee80211_free_node(data->ni);
683 ural_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
685 struct ural_vap *uvp = URAL_VAP(vap);
686 struct ieee80211com *ic = vap->iv_ic;
687 struct ural_softc *sc = ic->ic_ifp->if_softc;
688 const struct ieee80211_txparam *tp;
689 struct ieee80211_node *ni;
692 DPRINTF("%s -> %s\n",
693 ieee80211_state_name[vap->iv_state],
694 ieee80211_state_name[nstate]);
696 IEEE80211_UNLOCK(ic);
698 usb_callout_stop(&uvp->ratectl_ch);
701 case IEEE80211_S_INIT:
702 if (vap->iv_state == IEEE80211_S_RUN) {
703 /* abort TSF synchronization */
704 ural_write(sc, RAL_TXRX_CSR19, 0);
706 /* force tx led to stop blinking */
707 ural_write(sc, RAL_MAC_CSR20, 0);
711 case IEEE80211_S_RUN:
712 ni = ieee80211_ref_node(vap->iv_bss);
714 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
715 ural_update_slot(ic->ic_ifp);
716 ural_set_txpreamble(sc);
717 ural_set_basicrates(sc, ic->ic_bsschan);
718 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
719 ural_set_bssid(sc, sc->sc_bssid);
722 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
723 vap->iv_opmode == IEEE80211_M_IBSS) {
724 m = ieee80211_beacon_alloc(ni, &uvp->bo);
726 device_printf(sc->sc_dev,
727 "could not allocate beacon\n");
730 ieee80211_free_node(ni);
733 ieee80211_ref_node(ni);
734 if (ural_tx_bcn(sc, m, ni) != 0) {
735 device_printf(sc->sc_dev,
736 "could not send beacon\n");
739 ieee80211_free_node(ni);
744 /* make tx led blink on tx (controlled by ASIC) */
745 ural_write(sc, RAL_MAC_CSR20, 1);
747 if (vap->iv_opmode != IEEE80211_M_MONITOR)
748 ural_enable_tsf_sync(sc);
752 /* enable automatic rate adaptation */
753 /* XXX should use ic_bsschan but not valid until after newstate call below */
754 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
755 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
756 ural_ratectl_start(sc, ni);
757 ieee80211_free_node(ni);
765 return (uvp->newstate(vap, nstate, arg));
770 ural_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
772 struct ural_softc *sc = usbd_xfer_softc(xfer);
773 struct ifnet *ifp = sc->sc_ifp;
774 struct ieee80211vap *vap;
775 struct ural_tx_data *data;
777 struct usb_page_cache *pc;
780 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
782 switch (USB_GET_STATE(xfer)) {
783 case USB_ST_TRANSFERRED:
784 DPRINTFN(11, "transfer complete, %d bytes\n", len);
787 data = usbd_xfer_get_priv(xfer);
788 ural_tx_free(data, 0);
789 usbd_xfer_set_priv(xfer, NULL);
792 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
797 data = STAILQ_FIRST(&sc->tx_q);
799 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
802 if (m->m_pkthdr.len > (RAL_FRAME_SIZE + RAL_TX_DESC_SIZE)) {
803 DPRINTFN(0, "data overflow, %u bytes\n",
805 m->m_pkthdr.len = (RAL_FRAME_SIZE + RAL_TX_DESC_SIZE);
807 pc = usbd_xfer_get_frame(xfer, 0);
808 usbd_copy_in(pc, 0, &data->desc, RAL_TX_DESC_SIZE);
809 usbd_m_copy_in(pc, RAL_TX_DESC_SIZE, m, 0,
812 vap = data->ni->ni_vap;
813 if (ieee80211_radiotap_active_vap(vap)) {
814 struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
817 tap->wt_rate = data->rate;
818 tap->wt_antenna = sc->tx_ant;
820 ieee80211_radiotap_tx(vap, m);
823 /* xfer length needs to be a multiple of two! */
824 len = (RAL_TX_DESC_SIZE + m->m_pkthdr.len + 1) & ~1;
828 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
829 m->m_pkthdr.len, len);
831 usbd_xfer_set_frame_len(xfer, 0, len);
832 usbd_xfer_set_priv(xfer, data);
834 usbd_transfer_submit(xfer);
842 DPRINTFN(11, "transfer error, %s\n",
846 data = usbd_xfer_get_priv(xfer);
848 ural_tx_free(data, error);
849 usbd_xfer_set_priv(xfer, NULL);
852 if (error == USB_ERR_STALLED) {
853 /* try to clear stall first */
854 usbd_xfer_set_stall(xfer);
857 if (error == USB_ERR_TIMEOUT)
858 device_printf(sc->sc_dev, "device timeout\n");
864 ural_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
866 struct ural_softc *sc = usbd_xfer_softc(xfer);
867 struct ifnet *ifp = sc->sc_ifp;
868 struct ieee80211com *ic = ifp->if_l2com;
869 struct ieee80211_node *ni;
870 struct mbuf *m = NULL;
871 struct usb_page_cache *pc;
873 int8_t rssi = 0, nf = 0;
876 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
878 switch (USB_GET_STATE(xfer)) {
879 case USB_ST_TRANSFERRED:
881 DPRINTFN(15, "rx done, actlen=%d\n", len);
883 if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
884 DPRINTF("%s: xfer too short %d\n",
885 device_get_nameunit(sc->sc_dev), len);
890 len -= RAL_RX_DESC_SIZE;
891 /* rx descriptor is located at the end */
892 pc = usbd_xfer_get_frame(xfer, 0);
893 usbd_copy_out(pc, len, &sc->sc_rx_desc, RAL_RX_DESC_SIZE);
895 rssi = URAL_RSSI(sc->sc_rx_desc.rssi);
896 nf = RAL_NOISE_FLOOR;
897 flags = le32toh(sc->sc_rx_desc.flags);
898 if (flags & (RAL_RX_PHY_ERROR | RAL_RX_CRC_ERROR)) {
900 * This should not happen since we did not
901 * request to receive those frames when we
902 * filled RAL_TXRX_CSR2:
904 DPRINTFN(5, "PHY or CRC error\n");
909 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
911 DPRINTF("could not allocate mbuf\n");
915 usbd_copy_out(pc, 0, mtod(m, uint8_t *), len);
918 m->m_pkthdr.rcvif = ifp;
919 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
921 if (ieee80211_radiotap_active(ic)) {
922 struct ural_rx_radiotap_header *tap = &sc->sc_rxtap;
926 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
927 (flags & RAL_RX_OFDM) ?
928 IEEE80211_T_OFDM : IEEE80211_T_CCK);
929 tap->wr_antenna = sc->rx_ant;
930 tap->wr_antsignal = nf + rssi;
931 tap->wr_antnoise = nf;
933 /* Strip trailing 802.11 MAC FCS. */
934 m_adj(m, -IEEE80211_CRC_LEN);
939 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
940 usbd_transfer_submit(xfer);
943 * At the end of a USB callback it is always safe to unlock
944 * the private mutex of a device! That is why we do the
945 * "ieee80211_input" here, and not some lines up!
949 ni = ieee80211_find_rxnode(ic,
950 mtod(m, struct ieee80211_frame_min *));
952 (void) ieee80211_input(ni, m, rssi, nf);
953 ieee80211_free_node(ni);
955 (void) ieee80211_input_all(ic, m, rssi, nf);
957 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
958 !IFQ_IS_EMPTY(&ifp->if_snd))
964 if (error != USB_ERR_CANCELLED) {
965 /* try to clear stall first */
966 usbd_xfer_set_stall(xfer);
974 ural_plcp_signal(int rate)
977 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
985 case 108: return 0xc;
987 /* CCK rates (NB: not IEEE std, device-specific) */
993 return 0xff; /* XXX unsupported/unknown rate */
997 ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc,
998 uint32_t flags, int len, int rate)
1000 struct ifnet *ifp = sc->sc_ifp;
1001 struct ieee80211com *ic = ifp->if_l2com;
1002 uint16_t plcp_length;
1005 desc->flags = htole32(flags);
1006 desc->flags |= htole32(RAL_TX_NEWSEQ);
1007 desc->flags |= htole32(len << 16);
1009 desc->wme = htole16(RAL_AIFSN(2) | RAL_LOGCWMIN(3) | RAL_LOGCWMAX(5));
1010 desc->wme |= htole16(RAL_IVOFFSET(sizeof (struct ieee80211_frame)));
1012 /* setup PLCP fields */
1013 desc->plcp_signal = ural_plcp_signal(rate);
1014 desc->plcp_service = 4;
1016 len += IEEE80211_CRC_LEN;
1017 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1018 desc->flags |= htole32(RAL_TX_OFDM);
1020 plcp_length = len & 0xfff;
1021 desc->plcp_length_hi = plcp_length >> 6;
1022 desc->plcp_length_lo = plcp_length & 0x3f;
1024 plcp_length = (16 * len + rate - 1) / rate;
1026 remainder = (16 * len) % 22;
1027 if (remainder != 0 && remainder < 7)
1028 desc->plcp_service |= RAL_PLCP_LENGEXT;
1030 desc->plcp_length_hi = plcp_length >> 8;
1031 desc->plcp_length_lo = plcp_length & 0xff;
1033 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1034 desc->plcp_signal |= 0x08;
1041 #define RAL_TX_TIMEOUT 5000
1044 ural_tx_bcn(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1046 struct ieee80211vap *vap = ni->ni_vap;
1047 struct ieee80211com *ic = ni->ni_ic;
1048 struct ifnet *ifp = sc->sc_ifp;
1049 const struct ieee80211_txparam *tp;
1050 struct ural_tx_data *data;
1052 if (sc->tx_nfree == 0) {
1053 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1055 ieee80211_free_node(ni);
1058 data = STAILQ_FIRST(&sc->tx_free);
1059 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1061 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
1065 data->rate = tp->mgmtrate;
1067 ural_setup_tx_desc(sc, &data->desc,
1068 RAL_TX_IFS_NEWBACKOFF | RAL_TX_TIMESTAMP, m0->m_pkthdr.len,
1071 DPRINTFN(10, "sending beacon frame len=%u rate=%u\n",
1072 m0->m_pkthdr.len, tp->mgmtrate);
1074 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1075 usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
1081 ural_tx_mgt(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1083 struct ieee80211vap *vap = ni->ni_vap;
1084 struct ieee80211com *ic = ni->ni_ic;
1085 const struct ieee80211_txparam *tp;
1086 struct ural_tx_data *data;
1087 struct ieee80211_frame *wh;
1088 struct ieee80211_key *k;
1092 RAL_LOCK_ASSERT(sc, MA_OWNED);
1094 data = STAILQ_FIRST(&sc->tx_free);
1095 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1098 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1100 wh = mtod(m0, struct ieee80211_frame *);
1101 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1102 k = ieee80211_crypto_encap(ni, m0);
1107 wh = mtod(m0, struct ieee80211_frame *);
1112 data->rate = tp->mgmtrate;
1115 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1116 flags |= RAL_TX_ACK;
1118 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1119 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1120 *(uint16_t *)wh->i_dur = htole16(dur);
1122 /* tell hardware to add timestamp for probe responses */
1123 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1124 IEEE80211_FC0_TYPE_MGT &&
1125 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1126 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1127 flags |= RAL_TX_TIMESTAMP;
1130 ural_setup_tx_desc(sc, &data->desc, flags, m0->m_pkthdr.len, tp->mgmtrate);
1132 DPRINTFN(10, "sending mgt frame len=%u rate=%u\n",
1133 m0->m_pkthdr.len, tp->mgmtrate);
1135 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1136 usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
1142 ural_sendprot(struct ural_softc *sc,
1143 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1145 struct ieee80211com *ic = ni->ni_ic;
1146 const struct ieee80211_frame *wh;
1147 struct ural_tx_data *data;
1149 int protrate, ackrate, pktlen, flags, isshort;
1152 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1153 ("protection %d", prot));
1155 wh = mtod(m, const struct ieee80211_frame *);
1156 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1158 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1159 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1161 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1162 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1163 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1164 flags = RAL_TX_RETRY(7);
1165 if (prot == IEEE80211_PROT_RTSCTS) {
1166 /* NB: CTS is the same size as an ACK */
1167 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1168 flags |= RAL_TX_ACK;
1169 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1171 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1173 if (mprot == NULL) {
1174 /* XXX stat + msg */
1177 data = STAILQ_FIRST(&sc->tx_free);
1178 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1182 data->ni = ieee80211_ref_node(ni);
1183 data->rate = protrate;
1184 ural_setup_tx_desc(sc, &data->desc, flags, mprot->m_pkthdr.len, protrate);
1186 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1187 usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
1193 ural_tx_raw(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1194 const struct ieee80211_bpf_params *params)
1196 struct ieee80211com *ic = ni->ni_ic;
1197 struct ural_tx_data *data;
1202 RAL_LOCK_ASSERT(sc, MA_OWNED);
1203 KASSERT(params != NULL, ("no raw xmit params"));
1205 rate = params->ibp_rate0;
1206 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1211 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1212 flags |= RAL_TX_ACK;
1213 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1214 error = ural_sendprot(sc, m0, ni,
1215 params->ibp_flags & IEEE80211_BPF_RTS ?
1216 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1218 if (error || sc->tx_nfree == 0) {
1222 flags |= RAL_TX_IFS_SIFS;
1225 data = STAILQ_FIRST(&sc->tx_free);
1226 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1233 /* XXX need to setup descriptor ourself */
1234 ural_setup_tx_desc(sc, &data->desc, flags, m0->m_pkthdr.len, rate);
1236 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1237 m0->m_pkthdr.len, rate);
1239 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1240 usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
1246 ural_tx_data(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1248 struct ieee80211vap *vap = ni->ni_vap;
1249 struct ieee80211com *ic = ni->ni_ic;
1250 struct ural_tx_data *data;
1251 struct ieee80211_frame *wh;
1252 const struct ieee80211_txparam *tp;
1253 struct ieee80211_key *k;
1258 RAL_LOCK_ASSERT(sc, MA_OWNED);
1260 wh = mtod(m0, struct ieee80211_frame *);
1262 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1263 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1264 rate = tp->mcastrate;
1265 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1266 rate = tp->ucastrate;
1268 rate = ni->ni_txrate;
1270 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1271 k = ieee80211_crypto_encap(ni, m0);
1276 /* packet header may have moved, reset our local pointer */
1277 wh = mtod(m0, struct ieee80211_frame *);
1280 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1281 int prot = IEEE80211_PROT_NONE;
1282 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1283 prot = IEEE80211_PROT_RTSCTS;
1284 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1285 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1286 prot = ic->ic_protmode;
1287 if (prot != IEEE80211_PROT_NONE) {
1288 error = ural_sendprot(sc, m0, ni, prot, rate);
1289 if (error || sc->tx_nfree == 0) {
1293 flags |= RAL_TX_IFS_SIFS;
1297 data = STAILQ_FIRST(&sc->tx_free);
1298 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1305 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1306 flags |= RAL_TX_ACK;
1307 flags |= RAL_TX_RETRY(7);
1309 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1310 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1311 *(uint16_t *)wh->i_dur = htole16(dur);
1314 ural_setup_tx_desc(sc, &data->desc, flags, m0->m_pkthdr.len, rate);
1316 DPRINTFN(10, "sending data frame len=%u rate=%u\n",
1317 m0->m_pkthdr.len, rate);
1319 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1320 usbd_transfer_start(sc->sc_xfer[URAL_BULK_WR]);
1326 ural_start(struct ifnet *ifp)
1328 struct ural_softc *sc = ifp->if_softc;
1329 struct ieee80211_node *ni;
1333 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1338 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1341 if (sc->tx_nfree < RAL_TX_MINFREE) {
1342 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1343 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1346 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1347 if (ural_tx_data(sc, m, ni) != 0) {
1348 ieee80211_free_node(ni);
1357 ural_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1359 struct ural_softc *sc = ifp->if_softc;
1360 struct ieee80211com *ic = ifp->if_l2com;
1361 struct ifreq *ifr = (struct ifreq *) data;
1362 int error = 0, startall = 0;
1367 if (ifp->if_flags & IFF_UP) {
1368 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1369 ural_init_locked(sc);
1372 ural_setpromisc(sc);
1374 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1379 ieee80211_start_all(ic);
1383 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1386 error = ether_ioctl(ifp, cmd, data);
1393 ural_set_testmode(struct ural_softc *sc)
1395 struct usb_device_request req;
1398 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1399 req.bRequest = RAL_VENDOR_REQUEST;
1400 USETW(req.wValue, 4);
1401 USETW(req.wIndex, 1);
1402 USETW(req.wLength, 0);
1404 error = ural_do_request(sc, &req, NULL);
1406 device_printf(sc->sc_dev, "could not set test mode: %s\n",
1407 usbd_errstr(error));
1412 ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len)
1414 struct usb_device_request req;
1417 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1418 req.bRequest = RAL_READ_EEPROM;
1419 USETW(req.wValue, 0);
1420 USETW(req.wIndex, addr);
1421 USETW(req.wLength, len);
1423 error = ural_do_request(sc, &req, buf);
1425 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1426 usbd_errstr(error));
1431 ural_read(struct ural_softc *sc, uint16_t reg)
1433 struct usb_device_request req;
1437 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1438 req.bRequest = RAL_READ_MAC;
1439 USETW(req.wValue, 0);
1440 USETW(req.wIndex, reg);
1441 USETW(req.wLength, sizeof (uint16_t));
1443 error = ural_do_request(sc, &req, &val);
1445 device_printf(sc->sc_dev, "could not read MAC register: %s\n",
1446 usbd_errstr(error));
1450 return le16toh(val);
1454 ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
1456 struct usb_device_request req;
1459 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1460 req.bRequest = RAL_READ_MULTI_MAC;
1461 USETW(req.wValue, 0);
1462 USETW(req.wIndex, reg);
1463 USETW(req.wLength, len);
1465 error = ural_do_request(sc, &req, buf);
1467 device_printf(sc->sc_dev, "could not read MAC register: %s\n",
1468 usbd_errstr(error));
1473 ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val)
1475 struct usb_device_request req;
1478 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1479 req.bRequest = RAL_WRITE_MAC;
1480 USETW(req.wValue, val);
1481 USETW(req.wIndex, reg);
1482 USETW(req.wLength, 0);
1484 error = ural_do_request(sc, &req, NULL);
1486 device_printf(sc->sc_dev, "could not write MAC register: %s\n",
1487 usbd_errstr(error));
1492 ural_write_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
1494 struct usb_device_request req;
1497 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1498 req.bRequest = RAL_WRITE_MULTI_MAC;
1499 USETW(req.wValue, 0);
1500 USETW(req.wIndex, reg);
1501 USETW(req.wLength, len);
1503 error = ural_do_request(sc, &req, buf);
1505 device_printf(sc->sc_dev, "could not write MAC register: %s\n",
1506 usbd_errstr(error));
1511 ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val)
1516 for (ntries = 0; ntries < 100; ntries++) {
1517 if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
1519 if (ural_pause(sc, hz / 100))
1522 if (ntries == 100) {
1523 device_printf(sc->sc_dev, "could not write to BBP\n");
1527 tmp = reg << 8 | val;
1528 ural_write(sc, RAL_PHY_CSR7, tmp);
1532 ural_bbp_read(struct ural_softc *sc, uint8_t reg)
1537 val = RAL_BBP_WRITE | reg << 8;
1538 ural_write(sc, RAL_PHY_CSR7, val);
1540 for (ntries = 0; ntries < 100; ntries++) {
1541 if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
1543 if (ural_pause(sc, hz / 100))
1546 if (ntries == 100) {
1547 device_printf(sc->sc_dev, "could not read BBP\n");
1551 return ural_read(sc, RAL_PHY_CSR7) & 0xff;
1555 ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val)
1560 for (ntries = 0; ntries < 100; ntries++) {
1561 if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY))
1563 if (ural_pause(sc, hz / 100))
1566 if (ntries == 100) {
1567 device_printf(sc->sc_dev, "could not write to RF\n");
1571 tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3);
1572 ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff);
1573 ural_write(sc, RAL_PHY_CSR10, tmp >> 16);
1575 /* remember last written value in sc */
1576 sc->rf_regs[reg] = val;
1578 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
1582 ural_scan_start(struct ieee80211com *ic)
1584 struct ifnet *ifp = ic->ic_ifp;
1585 struct ural_softc *sc = ifp->if_softc;
1588 ural_write(sc, RAL_TXRX_CSR19, 0);
1589 ural_set_bssid(sc, ifp->if_broadcastaddr);
1594 ural_scan_end(struct ieee80211com *ic)
1596 struct ural_softc *sc = ic->ic_ifp->if_softc;
1599 ural_enable_tsf_sync(sc);
1600 ural_set_bssid(sc, sc->sc_bssid);
1606 ural_set_channel(struct ieee80211com *ic)
1608 struct ural_softc *sc = ic->ic_ifp->if_softc;
1611 ural_set_chan(sc, ic->ic_curchan);
1616 ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c)
1618 struct ifnet *ifp = sc->sc_ifp;
1619 struct ieee80211com *ic = ifp->if_l2com;
1623 chan = ieee80211_chan2ieee(ic, c);
1624 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1627 if (IEEE80211_IS_CHAN_2GHZ(c))
1628 power = min(sc->txpow[chan - 1], 31);
1632 /* adjust txpower using ifconfig settings */
1633 power -= (100 - ic->ic_txpowlimit) / 8;
1635 DPRINTFN(2, "setting channel to %u, txpower to %u\n", chan, power);
1637 switch (sc->rf_rev) {
1639 ural_rf_write(sc, RAL_RF1, 0x00814);
1640 ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]);
1641 ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
1645 ural_rf_write(sc, RAL_RF1, 0x08804);
1646 ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]);
1647 ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
1648 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1652 ural_rf_write(sc, RAL_RF1, 0x0c808);
1653 ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]);
1654 ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
1655 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1659 ural_rf_write(sc, RAL_RF1, 0x08808);
1660 ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]);
1661 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1662 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1664 ural_rf_write(sc, RAL_RF1, 0x08808);
1665 ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]);
1666 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1667 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1671 ural_rf_write(sc, RAL_RF1, 0x08808);
1672 ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]);
1673 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1674 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
1678 ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]);
1679 ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
1680 ural_rf_write(sc, RAL_RF1, 0x08804);
1682 ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]);
1683 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1684 ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
1689 for (i = 0; ural_rf5222[i].chan != chan; i++);
1691 ural_rf_write(sc, RAL_RF1, ural_rf5222[i].r1);
1692 ural_rf_write(sc, RAL_RF2, ural_rf5222[i].r2);
1693 ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
1694 ural_rf_write(sc, RAL_RF4, ural_rf5222[i].r4);
1698 if (ic->ic_opmode != IEEE80211_M_MONITOR &&
1699 (ic->ic_flags & IEEE80211_F_SCAN) == 0) {
1700 /* set Japan filter bit for channel 14 */
1701 tmp = ural_bbp_read(sc, 70);
1703 tmp &= ~RAL_JAPAN_FILTER;
1705 tmp |= RAL_JAPAN_FILTER;
1707 ural_bbp_write(sc, 70, tmp);
1709 /* clear CRC errors */
1710 ural_read(sc, RAL_STA_CSR0);
1712 ural_pause(sc, hz / 100);
1713 ural_disable_rf_tune(sc);
1716 /* XXX doesn't belong here */
1717 /* update basic rate set */
1718 ural_set_basicrates(sc, c);
1720 /* give the hardware some time to do the switchover */
1721 ural_pause(sc, hz / 100);
1725 * Disable RF auto-tuning.
1728 ural_disable_rf_tune(struct ural_softc *sc)
1732 if (sc->rf_rev != RAL_RF_2523) {
1733 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
1734 ural_rf_write(sc, RAL_RF1, tmp);
1737 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
1738 ural_rf_write(sc, RAL_RF3, tmp);
1740 DPRINTFN(2, "disabling RF autotune\n");
1744 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
1748 ural_enable_tsf_sync(struct ural_softc *sc)
1750 struct ifnet *ifp = sc->sc_ifp;
1751 struct ieee80211com *ic = ifp->if_l2com;
1752 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1753 uint16_t logcwmin, preload, tmp;
1755 /* first, disable TSF synchronization */
1756 ural_write(sc, RAL_TXRX_CSR19, 0);
1758 tmp = (16 * vap->iv_bss->ni_intval) << 4;
1759 ural_write(sc, RAL_TXRX_CSR18, tmp);
1761 logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0;
1762 preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6;
1763 tmp = logcwmin << 12 | preload;
1764 ural_write(sc, RAL_TXRX_CSR20, tmp);
1766 /* finally, enable TSF synchronization */
1767 tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN;
1768 if (ic->ic_opmode == IEEE80211_M_STA)
1769 tmp |= RAL_ENABLE_TSF_SYNC(1);
1771 tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR;
1772 ural_write(sc, RAL_TXRX_CSR19, tmp);
1774 DPRINTF("enabling TSF synchronization\n");
1778 ural_enable_tsf(struct ural_softc *sc)
1780 /* first, disable TSF synchronization */
1781 ural_write(sc, RAL_TXRX_CSR19, 0);
1782 ural_write(sc, RAL_TXRX_CSR19, RAL_ENABLE_TSF | RAL_ENABLE_TSF_SYNC(2));
1785 #define RAL_RXTX_TURNAROUND 5 /* us */
1787 ural_update_slot(struct ifnet *ifp)
1789 struct ural_softc *sc = ifp->if_softc;
1790 struct ieee80211com *ic = ifp->if_l2com;
1791 uint16_t slottime, sifs, eifs;
1793 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1796 * These settings may sound a bit inconsistent but this is what the
1797 * reference driver does.
1799 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1800 sifs = 16 - RAL_RXTX_TURNAROUND;
1803 sifs = 10 - RAL_RXTX_TURNAROUND;
1807 ural_write(sc, RAL_MAC_CSR10, slottime);
1808 ural_write(sc, RAL_MAC_CSR11, sifs);
1809 ural_write(sc, RAL_MAC_CSR12, eifs);
1813 ural_set_txpreamble(struct ural_softc *sc)
1815 struct ifnet *ifp = sc->sc_ifp;
1816 struct ieee80211com *ic = ifp->if_l2com;
1819 tmp = ural_read(sc, RAL_TXRX_CSR10);
1821 tmp &= ~RAL_SHORT_PREAMBLE;
1822 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1823 tmp |= RAL_SHORT_PREAMBLE;
1825 ural_write(sc, RAL_TXRX_CSR10, tmp);
1829 ural_set_basicrates(struct ural_softc *sc, const struct ieee80211_channel *c)
1831 /* XXX wrong, take from rate set */
1832 /* update basic rate set */
1833 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1834 /* 11a basic rates: 6, 12, 24Mbps */
1835 ural_write(sc, RAL_TXRX_CSR11, 0x150);
1836 } else if (IEEE80211_IS_CHAN_ANYG(c)) {
1837 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
1838 ural_write(sc, RAL_TXRX_CSR11, 0x15f);
1840 /* 11b basic rates: 1, 2Mbps */
1841 ural_write(sc, RAL_TXRX_CSR11, 0x3);
1846 ural_set_bssid(struct ural_softc *sc, const uint8_t *bssid)
1850 char ethstr[ETHER_ADDRSTRLEN + 1];
1853 tmp = bssid[0] | bssid[1] << 8;
1854 ural_write(sc, RAL_MAC_CSR5, tmp);
1856 tmp = bssid[2] | bssid[3] << 8;
1857 ural_write(sc, RAL_MAC_CSR6, tmp);
1859 tmp = bssid[4] | bssid[5] << 8;
1860 ural_write(sc, RAL_MAC_CSR7, tmp);
1862 DPRINTF("setting BSSID to %s\n", kether_ntoa(bssid, ethstr));
1866 ural_set_macaddr(struct ural_softc *sc, uint8_t *addr)
1870 char ethstr[ETHER_ADDRSTRLEN + 1];
1873 tmp = addr[0] | addr[1] << 8;
1874 ural_write(sc, RAL_MAC_CSR2, tmp);
1876 tmp = addr[2] | addr[3] << 8;
1877 ural_write(sc, RAL_MAC_CSR3, tmp);
1879 tmp = addr[4] | addr[5] << 8;
1880 ural_write(sc, RAL_MAC_CSR4, tmp);
1882 DPRINTF("setting MAC address to %s\n", kether_ntoa(addr, ethstr));
1886 ural_setpromisc(struct ural_softc *sc)
1888 struct ifnet *ifp = sc->sc_ifp;
1891 tmp = ural_read(sc, RAL_TXRX_CSR2);
1893 tmp &= ~RAL_DROP_NOT_TO_ME;
1894 if (!(ifp->if_flags & IFF_PROMISC))
1895 tmp |= RAL_DROP_NOT_TO_ME;
1897 ural_write(sc, RAL_TXRX_CSR2, tmp);
1899 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1900 "entering" : "leaving");
1904 ural_update_promisc(struct ieee80211com *ic)
1906 struct ural_softc *sc = ic->ic_softc;
1908 if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1912 ural_setpromisc(sc);
1917 ural_get_rf(int rev)
1920 case RAL_RF_2522: return "RT2522";
1921 case RAL_RF_2523: return "RT2523";
1922 case RAL_RF_2524: return "RT2524";
1923 case RAL_RF_2525: return "RT2525";
1924 case RAL_RF_2525E: return "RT2525e";
1925 case RAL_RF_2526: return "RT2526";
1926 case RAL_RF_5222: return "RT5222";
1927 default: return "unknown";
1932 ural_read_eeprom(struct ural_softc *sc)
1936 ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2);
1938 sc->rf_rev = (val >> 11) & 0x7;
1939 sc->hw_radio = (val >> 10) & 0x1;
1940 sc->led_mode = (val >> 6) & 0x7;
1941 sc->rx_ant = (val >> 4) & 0x3;
1942 sc->tx_ant = (val >> 2) & 0x3;
1943 sc->nb_ant = val & 0x3;
1945 /* read MAC address */
1946 ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, sc->sc_bssid, 6);
1948 /* read default values for BBP registers */
1949 ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1951 /* read Tx power for all b/g channels */
1952 ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14);
1956 ural_bbp_init(struct ural_softc *sc)
1960 /* wait for BBP to be ready */
1961 for (ntries = 0; ntries < 100; ntries++) {
1962 if (ural_bbp_read(sc, RAL_BBP_VERSION) != 0)
1964 if (ural_pause(sc, hz / 100))
1967 if (ntries == 100) {
1968 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
1972 /* initialize BBP registers to default values */
1973 for (i = 0; i < nitems(ural_def_bbp); i++)
1974 ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val);
1977 /* initialize BBP registers to values stored in EEPROM */
1978 for (i = 0; i < 16; i++) {
1979 if (sc->bbp_prom[i].reg == 0xff)
1981 ural_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1989 ural_set_txantenna(struct ural_softc *sc, int antenna)
1994 tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK;
1997 else if (antenna == 2)
2000 tx |= RAL_BBP_DIVERSITY;
2002 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2003 if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 ||
2004 sc->rf_rev == RAL_RF_5222)
2005 tx |= RAL_BBP_FLIPIQ;
2007 ural_bbp_write(sc, RAL_BBP_TX, tx);
2009 /* update values in PHY_CSR5 and PHY_CSR6 */
2010 tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7;
2011 ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7));
2013 tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7;
2014 ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7));
2018 ural_set_rxantenna(struct ural_softc *sc, int antenna)
2022 rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK;
2025 else if (antenna == 2)
2028 rx |= RAL_BBP_DIVERSITY;
2030 /* need to force no I/Q flip for RF 2525e and 2526 */
2031 if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526)
2032 rx &= ~RAL_BBP_FLIPIQ;
2034 ural_bbp_write(sc, RAL_BBP_RX, rx);
2038 ural_init_locked(struct ural_softc *sc)
2040 struct ifnet *ifp = sc->sc_ifp;
2041 struct ieee80211com *ic = ifp->if_l2com;
2045 RAL_LOCK_ASSERT(sc, MA_OWNED);
2047 ural_set_testmode(sc);
2048 ural_write(sc, 0x308, 0x00f0); /* XXX magic */
2052 /* initialize MAC registers to default values */
2053 for (i = 0; i < nitems(ural_def_mac); i++)
2054 ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val);
2056 /* wait for BBP and RF to wake up (this can take a long time!) */
2057 for (ntries = 0; ntries < 100; ntries++) {
2058 tmp = ural_read(sc, RAL_MAC_CSR17);
2059 if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) ==
2060 (RAL_BBP_AWAKE | RAL_RF_AWAKE))
2062 if (ural_pause(sc, hz / 100))
2065 if (ntries == 100) {
2066 device_printf(sc->sc_dev,
2067 "timeout waiting for BBP/RF to wakeup\n");
2072 ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY);
2074 /* set basic rate set (will be updated later) */
2075 ural_write(sc, RAL_TXRX_CSR11, 0x15f);
2077 if (ural_bbp_init(sc) != 0)
2080 ural_set_chan(sc, ic->ic_curchan);
2082 /* clear statistic registers (STA_CSR0 to STA_CSR10) */
2083 ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
2085 ural_set_txantenna(sc, sc->tx_ant);
2086 ural_set_rxantenna(sc, sc->rx_ant);
2088 ural_set_macaddr(sc, IF_LLADDR(ifp));
2091 * Allocate Tx and Rx xfer queues.
2093 ural_setup_tx_list(sc);
2096 tmp = RAL_DROP_PHY | RAL_DROP_CRC;
2097 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2098 tmp |= RAL_DROP_CTL | RAL_DROP_BAD_VERSION;
2099 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2100 tmp |= RAL_DROP_TODS;
2101 if (!(ifp->if_flags & IFF_PROMISC))
2102 tmp |= RAL_DROP_NOT_TO_ME;
2104 ural_write(sc, RAL_TXRX_CSR2, tmp);
2106 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2107 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2108 usbd_xfer_set_stall(sc->sc_xfer[URAL_BULK_WR]);
2109 usbd_transfer_start(sc->sc_xfer[URAL_BULK_RD]);
2112 fail: ural_stop(sc);
2116 ural_init(void *priv)
2118 struct ural_softc *sc = priv;
2119 struct ifnet *ifp = sc->sc_ifp;
2120 struct ieee80211com *ic = ifp->if_l2com;
2123 ural_init_locked(sc);
2126 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2127 ieee80211_start_all(ic); /* start all vap's */
2131 ural_stop(struct ural_softc *sc)
2133 struct ifnet *ifp = sc->sc_ifp;
2135 RAL_LOCK_ASSERT(sc, MA_OWNED);
2137 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2140 * Drain all the transfers, if not already drained:
2143 usbd_transfer_drain(sc->sc_xfer[URAL_BULK_WR]);
2144 usbd_transfer_drain(sc->sc_xfer[URAL_BULK_RD]);
2147 ural_unsetup_tx_list(sc);
2150 ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX);
2151 /* reset ASIC and BBP (but won't reset MAC registers!) */
2152 ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP);
2154 ural_pause(sc, hz / 10);
2155 ural_write(sc, RAL_MAC_CSR1, 0);
2157 ural_pause(sc, hz / 10);
2161 ural_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2162 const struct ieee80211_bpf_params *params)
2164 struct ieee80211com *ic = ni->ni_ic;
2165 struct ifnet *ifp = ic->ic_ifp;
2166 struct ural_softc *sc = ifp->if_softc;
2169 /* prevent management frames from being sent if we're not ready */
2170 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2173 ieee80211_free_node(ni);
2176 if (sc->tx_nfree < RAL_TX_MINFREE) {
2177 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2180 ieee80211_free_node(ni);
2186 if (params == NULL) {
2188 * Legacy path; interpret frame contents to decide
2189 * precisely how to send the frame.
2191 if (ural_tx_mgt(sc, m, ni) != 0)
2195 * Caller supplied explicit parameters to use in
2196 * sending the frame.
2198 if (ural_tx_raw(sc, m, ni, params) != 0)
2206 ieee80211_free_node(ni);
2207 return EIO; /* XXX */
2211 ural_ratectl_start(struct ural_softc *sc, struct ieee80211_node *ni)
2213 struct ieee80211vap *vap = ni->ni_vap;
2214 struct ural_vap *uvp = URAL_VAP(vap);
2216 /* clear statistic registers (STA_CSR0 to STA_CSR10) */
2217 ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
2219 usb_callout_reset(&uvp->ratectl_ch, hz, ural_ratectl_timeout, uvp);
2223 ural_ratectl_timeout(void *arg)
2225 struct ural_vap *uvp = arg;
2226 struct ieee80211vap *vap = &uvp->vap;
2227 struct ieee80211com *ic = vap->iv_ic;
2229 ieee80211_runtask(ic, &uvp->ratectl_task);
2233 ural_ratectl_task(void *arg, int pending)
2235 struct ural_vap *uvp = arg;
2236 struct ieee80211vap *vap = &uvp->vap;
2237 struct ieee80211com *ic = vap->iv_ic;
2238 struct ifnet *ifp = ic->ic_ifp;
2239 struct ural_softc *sc = ifp->if_softc;
2240 struct ieee80211_node *ni;
2244 ni = ieee80211_ref_node(vap->iv_bss);
2246 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */
2247 ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof(sc->sta));
2249 ok = sc->sta[7] + /* TX ok w/o retry */
2250 sc->sta[8]; /* TX ok w/ retry */
2251 fail = sc->sta[9]; /* TX retry-fail count */
2253 retrycnt = sc->sta[8] + fail;
2255 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt);
2256 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2258 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */
2260 usb_callout_reset(&uvp->ratectl_ch, hz, ural_ratectl_timeout, uvp);
2262 ieee80211_free_node(ni);
2266 ural_pause(struct ural_softc *sc, int timeout)
2269 usb_pause_mtx(&sc->sc_mtx, timeout);