1 /* $FreeBSD: src/sys/dev/usb/if_ural.c,v 1.10.2.8 2006/07/08 07:48:43 maxim Exp $ */
4 * Copyright (c) 2005, 2006
5 * Damien Bergamini <damien.bergamini@free.fr>
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.
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.
21 * Ralink Technology RT2500USB chipset driver
22 * http://www.ralinktech.com/
25 #include <sys/param.h>
27 #include <sys/endian.h>
28 #include <sys/kernel.h>
29 #include <sys/malloc.h>
32 #include <sys/socket.h>
33 #include <sys/sockio.h>
34 #include <sys/sysctl.h>
37 #include <net/ethernet.h>
39 #include <net/if_arp.h>
40 #include <net/if_dl.h>
41 #include <net/if_media.h>
42 #include <net/ifq_var.h>
44 #include <netproto/802_11/ieee80211_var.h>
45 #include <netproto/802_11/ieee80211_radiotap.h>
46 #include <netproto/802_11/wlan_ratectl/onoe/ieee80211_onoe_param.h>
48 #include <bus/usb/usb.h>
49 #include <bus/usb/usbdi.h>
50 #include <bus/usb/usbdi_util.h>
52 #include <dev/netif/ural/if_uralreg.h>
53 #include <dev/netif/ural/if_uralvar.h>
56 #define DPRINTF(x) do { if (uraldebug > 0) kprintf x; } while (0)
57 #define DPRINTFN(n, x) do { if (uraldebug >= (n)) kprintf x; } while (0)
59 SYSCTL_NODE(_hw_usb, OID_AUTO, ural, CTLFLAG_RW, 0, "USB ural");
60 SYSCTL_INT(_hw_usb_ural, OID_AUTO, debug, CTLFLAG_RW, &uraldebug, 0,
64 #define DPRINTFN(n, x)
67 #define URAL_RSSI(rssi) \
68 ((rssi) > (RAL_NOISE_FLOOR + RAL_RSSI_CORR) ? \
69 ((rssi) - (RAL_NOISE_FLOOR + RAL_RSSI_CORR)) : 0)
71 /* various supported device vendors/products */
72 static const struct usb_devno ural_devs[] = {
73 { USB_DEVICE(0x0411, 0x005e) }, /* Melco WLI-U2-KG54-YB */
74 { USB_DEVICE(0x0411, 0x0066) }, /* Melco WLI-U2-KG54 */
75 { USB_DEVICE(0x0411, 0x0067) }, /* Melco WLI-U2-KG54-AI */
76 { USB_DEVICE(0x0411, 0x008b) }, /* Melco Nintendo Wi-Fi */
77 { USB_DEVICE(0x050d, 0x7050) }, /* Belkin Components F5D7050 */
78 { USB_DEVICE(0x06f8, 0xe000) }, /* Guillemot HWGUSB254 */
79 { USB_DEVICE(0x0769, 0x11f3) }, /* Surecom RT2570 */
80 { USB_DEVICE(0x0b05, 0x1706) }, /* Ralink (XXX) RT2500USB */
81 { USB_DEVICE(0x0b05, 0x1707) }, /* Asus WL167G */
82 { USB_DEVICE(0x0db0, 0x6861) }, /* MSI RT2570 */
83 { USB_DEVICE(0x0db0, 0x6865) }, /* MSI RT2570 */
84 { USB_DEVICE(0x0db0, 0x6869) }, /* MSI RT2570 */
85 { USB_DEVICE(0x0eb0, 0x9020) }, /* Nova Technology NV-902W */
86 { USB_DEVICE(0x0f88, 0x3012) }, /* VTech RT2570 */
87 { USB_DEVICE(0x1044, 0x8007) }, /* GIGABYTE GN-WBKG */
88 { USB_DEVICE(0x114b, 0x0110) }, /* Sphairon UB801R */
89 { USB_DEVICE(0x148f, 0x1706) }, /* Ralink RT2570 */
90 { USB_DEVICE(0x148f, 0x2570) }, /* Ralink RT2570 */
91 { USB_DEVICE(0x148f, 0x9020) }, /* Ralink RT2570 */
92 { USB_DEVICE(0x14b2, 0x3c02) }, /* Conceptronic C54RU */
93 { USB_DEVICE(0x1737, 0x000d) }, /* Linksys WUSB54G */
94 { USB_DEVICE(0x1737, 0x0011) }, /* Linksys WUSB54GP */
95 { USB_DEVICE(0x1737, 0x001a) }, /* Linksys HU200TS */
96 { USB_DEVICE(0x2001, 0x3c00) }, /* D-Link DWL-G122 */
97 { USB_DEVICE(0x5a57, 0x0260) }, /* Zinwell RT2570 */
100 static int ural_alloc_tx_list(struct ural_softc *);
101 static void ural_free_tx_list(struct ural_softc *);
102 static int ural_alloc_rx_list(struct ural_softc *);
103 static void ural_free_rx_list(struct ural_softc *);
104 static int ural_media_change(struct ifnet *);
105 static void ural_next_scan(void *);
106 static void ural_task(void *);
107 static int ural_newstate(struct ieee80211com *,
108 enum ieee80211_state, int);
109 static int ural_rxrate(struct ural_rx_desc *);
110 static void ural_txeof(usbd_xfer_handle, usbd_private_handle,
112 static void ural_rxeof(usbd_xfer_handle, usbd_private_handle,
114 static uint8_t ural_plcp_signal(int);
115 static void ural_setup_tx_desc(struct ural_softc *,
116 struct ural_tx_desc *, uint32_t, int, int);
117 static int ural_tx_bcn(struct ural_softc *, struct mbuf *,
118 struct ieee80211_node *);
119 static int ural_tx_mgt(struct ural_softc *, struct mbuf *,
120 struct ieee80211_node *);
121 static int ural_tx_data(struct ural_softc *, struct mbuf *,
122 struct ieee80211_node *);
123 static void ural_start(struct ifnet *);
124 static void ural_watchdog(struct ifnet *);
125 static int ural_reset(struct ifnet *);
126 static int ural_ioctl(struct ifnet *, u_long, caddr_t,
128 static void ural_set_testmode(struct ural_softc *);
129 static void ural_eeprom_read(struct ural_softc *, uint16_t, void *,
131 static uint16_t ural_read(struct ural_softc *, uint16_t);
132 static void ural_read_multi(struct ural_softc *, uint16_t, void *,
134 static void ural_write(struct ural_softc *, uint16_t, uint16_t);
135 static void ural_write_multi(struct ural_softc *, uint16_t, void *,
137 static void ural_bbp_write(struct ural_softc *, uint8_t, uint8_t);
138 static uint8_t ural_bbp_read(struct ural_softc *, uint8_t);
139 static void ural_rf_write(struct ural_softc *, uint8_t, uint32_t);
140 static void ural_set_chan(struct ural_softc *,
141 struct ieee80211_channel *);
142 static void ural_disable_rf_tune(struct ural_softc *);
143 static void ural_enable_tsf_sync(struct ural_softc *);
144 static void ural_update_slot(struct ifnet *);
145 static void ural_set_txpreamble(struct ural_softc *);
146 static void ural_set_basicrates(struct ural_softc *);
147 static void ural_set_bssid(struct ural_softc *, uint8_t *);
148 static void ural_set_macaddr(struct ural_softc *, uint8_t *);
149 static void ural_update_promisc(struct ural_softc *);
150 static const char *ural_get_rf(int);
151 static void ural_read_eeprom(struct ural_softc *);
152 static int ural_bbp_init(struct ural_softc *);
153 static void ural_set_txantenna(struct ural_softc *, int);
154 static void ural_set_rxantenna(struct ural_softc *, int);
155 static void ural_init(void *);
156 static void ural_stop(struct ural_softc *);
157 static void ural_stats(struct ieee80211com *,
158 struct ieee80211_node *,
159 struct ieee80211_ratectl_stats *);
160 static void ural_stats_update(usbd_xfer_handle,
161 usbd_private_handle, usbd_status);
162 static void ural_stats_timeout(void *);
163 static void *ural_ratectl_attach(struct ieee80211com *ic, u_int);
166 * Supported rates for 802.11a/b/g modes (in 500Kbps unit).
168 static const struct ieee80211_rateset ural_rateset_11a =
169 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } };
171 static const struct ieee80211_rateset ural_rateset_11b =
172 { 4, { 2, 4, 11, 22 } };
174 static const struct ieee80211_rateset ural_rateset_11g =
175 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
178 * Default values for MAC registers; values taken from the reference driver.
180 static const struct {
184 { RAL_TXRX_CSR5, 0x8c8d },
185 { RAL_TXRX_CSR6, 0x8b8a },
186 { RAL_TXRX_CSR7, 0x8687 },
187 { RAL_TXRX_CSR8, 0x0085 },
188 { RAL_MAC_CSR13, 0x1111 },
189 { RAL_MAC_CSR14, 0x1e11 },
190 { RAL_TXRX_CSR21, 0xe78f },
191 { RAL_MAC_CSR9, 0xff1d },
192 { RAL_MAC_CSR11, 0x0002 },
193 { RAL_MAC_CSR22, 0x0053 },
194 { RAL_MAC_CSR15, 0x0000 },
195 { RAL_MAC_CSR8, 0x0780 },
196 { RAL_TXRX_CSR19, 0x0000 },
197 { RAL_TXRX_CSR18, 0x005a },
198 { RAL_PHY_CSR2, 0x0000 },
199 { RAL_TXRX_CSR0, 0x1ec0 },
200 { RAL_PHY_CSR4, 0x000f }
204 * Default values for BBP registers; values taken from the reference driver.
206 static const struct {
245 * Default values for RF register R2 indexed by channel numbers.
247 static const uint32_t ural_rf2522_r2[] = {
248 0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814,
249 0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e
252 static const uint32_t ural_rf2523_r2[] = {
253 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
254 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
257 static const uint32_t ural_rf2524_r2[] = {
258 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
259 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
262 static const uint32_t ural_rf2525_r2[] = {
263 0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d,
264 0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346
267 static const uint32_t ural_rf2525_hi_r2[] = {
268 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345,
269 0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e
272 static const uint32_t ural_rf2525e_r2[] = {
273 0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463,
274 0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b
277 static const uint32_t ural_rf2526_hi_r2[] = {
278 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d, 0x0022d,
279 0x0022e, 0x0022e, 0x0022f, 0x0022d, 0x00240, 0x00240, 0x00241
282 static const uint32_t ural_rf2526_r2[] = {
283 0x00226, 0x00227, 0x00227, 0x00228, 0x00228, 0x00229, 0x00229,
284 0x0022a, 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d
288 * For dual-band RF, RF registers R1 and R4 also depend on channel number;
289 * values taken from the reference driver.
291 static const struct {
297 { 1, 0x08808, 0x0044d, 0x00282 },
298 { 2, 0x08808, 0x0044e, 0x00282 },
299 { 3, 0x08808, 0x0044f, 0x00282 },
300 { 4, 0x08808, 0x00460, 0x00282 },
301 { 5, 0x08808, 0x00461, 0x00282 },
302 { 6, 0x08808, 0x00462, 0x00282 },
303 { 7, 0x08808, 0x00463, 0x00282 },
304 { 8, 0x08808, 0x00464, 0x00282 },
305 { 9, 0x08808, 0x00465, 0x00282 },
306 { 10, 0x08808, 0x00466, 0x00282 },
307 { 11, 0x08808, 0x00467, 0x00282 },
308 { 12, 0x08808, 0x00468, 0x00282 },
309 { 13, 0x08808, 0x00469, 0x00282 },
310 { 14, 0x08808, 0x0046b, 0x00286 },
312 { 36, 0x08804, 0x06225, 0x00287 },
313 { 40, 0x08804, 0x06226, 0x00287 },
314 { 44, 0x08804, 0x06227, 0x00287 },
315 { 48, 0x08804, 0x06228, 0x00287 },
316 { 52, 0x08804, 0x06229, 0x00287 },
317 { 56, 0x08804, 0x0622a, 0x00287 },
318 { 60, 0x08804, 0x0622b, 0x00287 },
319 { 64, 0x08804, 0x0622c, 0x00287 },
321 { 100, 0x08804, 0x02200, 0x00283 },
322 { 104, 0x08804, 0x02201, 0x00283 },
323 { 108, 0x08804, 0x02202, 0x00283 },
324 { 112, 0x08804, 0x02203, 0x00283 },
325 { 116, 0x08804, 0x02204, 0x00283 },
326 { 120, 0x08804, 0x02205, 0x00283 },
327 { 124, 0x08804, 0x02206, 0x00283 },
328 { 128, 0x08804, 0x02207, 0x00283 },
329 { 132, 0x08804, 0x02208, 0x00283 },
330 { 136, 0x08804, 0x02209, 0x00283 },
331 { 140, 0x08804, 0x0220a, 0x00283 },
333 { 149, 0x08808, 0x02429, 0x00281 },
334 { 153, 0x08808, 0x0242b, 0x00281 },
335 { 157, 0x08808, 0x0242d, 0x00281 },
336 { 161, 0x08808, 0x0242f, 0x00281 }
339 static device_probe_t ural_match;
340 static device_attach_t ural_attach;
341 static device_detach_t ural_detach;
343 static devclass_t ural_devclass;
345 static kobj_method_t ural_methods[] = {
346 DEVMETHOD(device_probe, ural_match),
347 DEVMETHOD(device_attach, ural_attach),
348 DEVMETHOD(device_detach, ural_detach),
352 static driver_t ural_driver = {
355 sizeof(struct ural_softc)
358 DRIVER_MODULE(ural, uhub, ural_driver, ural_devclass, usbd_driver_load, NULL);
360 MODULE_DEPEND(ural, usb, 1, 1, 1);
361 MODULE_DEPEND(ural, wlan, 1, 1, 1);
362 MODULE_DEPEND(ural, wlan_ratectl_onoe, 1, 1, 1);
365 ural_match(device_t self)
367 struct usb_attach_arg *uaa = device_get_ivars(self);
369 if (uaa->iface != NULL)
372 return (usb_lookup(ural_devs, uaa->vendor, uaa->product) != NULL) ?
373 UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
377 ural_attach(device_t self)
379 struct ural_softc *sc = device_get_softc(self);
380 struct usb_attach_arg *uaa = device_get_ivars(self);
382 struct ieee80211com *ic = &sc->sc_ic;
383 usb_interface_descriptor_t *id;
384 usb_endpoint_descriptor_t *ed;
388 sc->sc_udev = uaa->device;
389 sc->sc_tx_retries = 7; /* TODO tunable/sysctl */
393 if (usbd_set_config_no(sc->sc_udev, RAL_CONFIG_NO, 0) != 0) {
394 kprintf("%s: could not set configuration no\n",
395 device_get_nameunit(sc->sc_dev));
399 /* get the first interface handle */
400 error = usbd_device2interface_handle(sc->sc_udev, RAL_IFACE_INDEX,
403 kprintf("%s: could not get interface handle\n",
404 device_get_nameunit(sc->sc_dev));
411 id = usbd_get_interface_descriptor(sc->sc_iface);
413 sc->sc_rx_no = sc->sc_tx_no = -1;
414 for (i = 0; i < id->bNumEndpoints; i++) {
415 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
417 kprintf("%s: no endpoint descriptor for %d\n",
418 device_get_nameunit(sc->sc_dev), i);
422 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
423 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
424 sc->sc_rx_no = ed->bEndpointAddress;
425 else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
426 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
427 sc->sc_tx_no = ed->bEndpointAddress;
429 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
430 kprintf("%s: missing endpoint\n", device_get_nameunit(sc->sc_dev));
434 usb_init_task(&sc->sc_task, ural_task, sc);
435 callout_init(&sc->scan_ch);
436 callout_init(&sc->stats_ch);
438 /* retrieve RT2570 rev. no */
439 sc->asic_rev = ural_read(sc, RAL_MAC_CSR0);
441 /* retrieve MAC address and various other things from EEPROM */
442 ural_read_eeprom(sc);
444 kprintf("%s: MAC/BBP RT2570 (rev 0x%02x), RF %s\n",
445 device_get_nameunit(sc->sc_dev), sc->asic_rev, ural_get_rf(sc->rf_rev));
449 if_initname(ifp, "ural", device_get_unit(sc->sc_dev));
450 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
451 ifp->if_init = ural_init;
452 ifp->if_ioctl = ural_ioctl;
453 ifp->if_start = ural_start;
454 ifp->if_watchdog = ural_watchdog;
455 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
456 ifq_set_ready(&ifp->if_snd);
458 IEEE80211_ONOE_PARAM_SETUP(&sc->sc_onoe_param);
459 sc->sc_onoe_param.onoe_raise = 20;
460 ic->ic_ratectl.rc_st_ratectl_cap = IEEE80211_RATECTL_CAP_ONOE;
461 ic->ic_ratectl.rc_st_ratectl = IEEE80211_RATECTL_ONOE;
462 ic->ic_ratectl.rc_st_stats = ural_stats;
463 ic->ic_ratectl.rc_st_attach = ural_ratectl_attach;
465 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
466 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
467 ic->ic_state = IEEE80211_S_INIT;
469 /* set device capabilities */
471 IEEE80211_C_IBSS | /* IBSS mode supported */
472 IEEE80211_C_MONITOR | /* monitor mode supported */
473 IEEE80211_C_HOSTAP | /* HostAp mode supported */
474 IEEE80211_C_TXPMGT | /* tx power management */
475 IEEE80211_C_SHPREAMBLE | /* short preamble supported */
476 IEEE80211_C_SHSLOT | /* short slot time supported */
477 IEEE80211_C_WPA; /* 802.11i */
479 if (sc->rf_rev == RAL_RF_5222) {
480 /* set supported .11a rates */
481 ic->ic_sup_rates[IEEE80211_MODE_11A] = ural_rateset_11a;
483 /* set supported .11a channels */
484 for (i = 36; i <= 64; i += 4) {
485 ic->ic_channels[i].ic_freq =
486 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
487 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
489 for (i = 100; i <= 140; i += 4) {
490 ic->ic_channels[i].ic_freq =
491 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
492 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
494 for (i = 149; i <= 161; i += 4) {
495 ic->ic_channels[i].ic_freq =
496 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
497 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
501 /* set supported .11b and .11g rates */
502 ic->ic_sup_rates[IEEE80211_MODE_11B] = ural_rateset_11b;
503 ic->ic_sup_rates[IEEE80211_MODE_11G] = ural_rateset_11g;
505 /* set supported .11b and .11g channels (1 through 14) */
506 for (i = 1; i <= 14; i++) {
507 ic->ic_channels[i].ic_freq =
508 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
509 ic->ic_channels[i].ic_flags =
510 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
511 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
514 sc->sc_sifs = IEEE80211_DUR_SIFS; /* Default SIFS */
516 ieee80211_ifattach(ic);
517 ic->ic_reset = ural_reset;
518 /* enable s/w bmiss handling in sta mode */
519 ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
521 /* override state transition machine */
522 sc->sc_newstate = ic->ic_newstate;
523 ic->ic_newstate = ural_newstate;
524 ieee80211_media_init(ic, ural_media_change, ieee80211_media_status);
526 bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
527 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf);
529 sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
530 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
531 sc->sc_rxtap.wr_ihdr.it_present = htole32(RAL_RX_RADIOTAP_PRESENT);
533 sc->sc_txtap_len = sizeof sc->sc_txtapu;
534 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
535 sc->sc_txtap.wt_ihdr.it_present = htole32(RAL_TX_RADIOTAP_PRESENT);
538 ieee80211_announce(ic);
544 ural_detach(device_t self)
546 struct ural_softc *sc = device_get_softc(self);
547 struct ieee80211com *ic = &sc->sc_ic;
548 struct ifnet *ifp = &ic->ic_if;
555 callout_stop(&sc->scan_ch);
556 callout_stop(&sc->stats_ch);
558 lwkt_serialize_enter(ifp->if_serializer);
560 lwkt_serialize_exit(ifp->if_serializer);
562 usb_rem_task(sc->sc_udev, &sc->sc_task);
565 ieee80211_ifdetach(ic);
569 KKASSERT(sc->stats_xfer == NULL);
570 KKASSERT(sc->sc_rx_pipeh == NULL);
571 KKASSERT(sc->sc_tx_pipeh == NULL);
575 * Make sure TX/RX list is empty
577 for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
578 struct ural_tx_data *data = &sc->tx_data[i];
580 KKASSERT(data->xfer == NULL);
581 KKASSERT(data->ni == NULL);
582 KKASSERT(data->m == NULL);
584 for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
585 struct ural_rx_data *data = &sc->rx_data[i];
587 KKASSERT(data->xfer == NULL);
588 KKASSERT(data->m == NULL);
596 ural_alloc_tx_list(struct ural_softc *sc)
602 for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
603 struct ural_tx_data *data = &sc->tx_data[i];
607 data->xfer = usbd_alloc_xfer(sc->sc_udev);
608 if (data->xfer == NULL) {
609 kprintf("%s: could not allocate tx xfer\n",
610 device_get_nameunit(sc->sc_dev));
614 data->buf = usbd_alloc_buffer(data->xfer,
615 RAL_TX_DESC_SIZE + MCLBYTES);
616 if (data->buf == NULL) {
617 kprintf("%s: could not allocate tx buffer\n",
618 device_get_nameunit(sc->sc_dev));
626 ural_free_tx_list(struct ural_softc *sc)
630 for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
631 struct ural_tx_data *data = &sc->tx_data[i];
633 if (data->xfer != NULL) {
634 usbd_free_xfer(data->xfer);
638 if (data->ni != NULL) {
639 ieee80211_free_node(data->ni);
642 if (data->m != NULL) {
651 ural_alloc_rx_list(struct ural_softc *sc)
655 for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
656 struct ural_rx_data *data = &sc->rx_data[i];
660 data->xfer = usbd_alloc_xfer(sc->sc_udev);
661 if (data->xfer == NULL) {
662 kprintf("%s: could not allocate rx xfer\n",
663 device_get_nameunit(sc->sc_dev));
667 if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
668 kprintf("%s: could not allocate rx buffer\n",
669 device_get_nameunit(sc->sc_dev));
673 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
674 if (data->m == NULL) {
675 kprintf("%s: could not allocate rx mbuf\n",
676 device_get_nameunit(sc->sc_dev));
680 data->buf = mtod(data->m, uint8_t *);
686 ural_free_rx_list(struct ural_softc *sc)
690 for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
691 struct ural_rx_data *data = &sc->rx_data[i];
693 if (data->xfer != NULL) {
694 usbd_free_xfer(data->xfer);
698 if (data->m != NULL) {
706 ural_media_change(struct ifnet *ifp)
708 struct ural_softc *sc = ifp->if_softc;
711 error = ieee80211_media_change(ifp);
712 if (error != ENETRESET)
715 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
722 * This function is called periodically (every 200ms) during scanning to
723 * switch from one channel to another.
726 ural_next_scan(void *arg)
728 struct ural_softc *sc = arg;
729 struct ieee80211com *ic = &sc->sc_ic;
730 struct ifnet *ifp = &ic->ic_if;
737 if (ic->ic_state == IEEE80211_S_SCAN) {
738 lwkt_serialize_enter(ifp->if_serializer);
739 ieee80211_next_scan(ic);
740 lwkt_serialize_exit(ifp->if_serializer);
747 ural_task(void *xarg)
749 struct ural_softc *sc = xarg;
750 struct ieee80211com *ic = &sc->sc_ic;
751 struct ifnet *ifp = &ic->ic_if;
752 enum ieee80211_state nstate;
753 struct ieee80211_node *ni;
762 nstate = sc->sc_state;
765 KASSERT(nstate != IEEE80211_S_INIT,
766 ("->INIT state transition should not be defered\n"));
767 ural_set_chan(sc, ic->ic_curchan);
769 switch (sc->sc_state) {
770 case IEEE80211_S_RUN:
773 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
774 ural_update_slot(&ic->ic_if);
775 ural_set_txpreamble(sc);
776 ural_set_basicrates(sc);
777 ural_set_bssid(sc, ni->ni_bssid);
780 if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
781 ic->ic_opmode == IEEE80211_M_IBSS) {
782 lwkt_serialize_enter(ifp->if_serializer);
783 m = ieee80211_beacon_alloc(ic, ni, &sc->sc_bo);
784 lwkt_serialize_exit(ifp->if_serializer);
787 kprintf("%s: could not allocate beacon\n",
788 device_get_nameunit(sc->sc_dev));
793 if (ural_tx_bcn(sc, m, ni) != 0) {
794 kprintf("%s: could not send beacon\n",
795 device_get_nameunit(sc->sc_dev));
801 /* make tx led blink on tx (controlled by ASIC) */
802 ural_write(sc, RAL_MAC_CSR20, 1);
804 if (ic->ic_opmode != IEEE80211_M_MONITOR)
805 ural_enable_tsf_sync(sc);
807 /* clear statistic registers (STA_CSR0 to STA_CSR10) */
808 ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof(sc->sta));
810 callout_reset(&sc->stats_ch, 4 * hz / 5,
811 ural_stats_timeout, sc);
814 case IEEE80211_S_SCAN:
815 callout_reset(&sc->scan_ch, hz / 5, ural_next_scan, sc);
822 lwkt_serialize_enter(ifp->if_serializer);
823 ieee80211_ratectl_newstate(ic, sc->sc_state);
824 sc->sc_newstate(ic, sc->sc_state, arg);
825 lwkt_serialize_exit(ifp->if_serializer);
831 ural_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
833 struct ifnet *ifp = &ic->ic_if;
834 struct ural_softc *sc = ifp->if_softc;
836 ASSERT_SERIALIZED(ifp->if_serializer);
840 callout_stop(&sc->scan_ch);
841 callout_stop(&sc->stats_ch);
843 /* do it in a process context */
844 sc->sc_state = nstate;
847 lwkt_serialize_exit(ifp->if_serializer);
848 usb_rem_task(sc->sc_udev, &sc->sc_task);
850 if (nstate == IEEE80211_S_INIT) {
851 lwkt_serialize_enter(ifp->if_serializer);
852 ieee80211_ratectl_newstate(ic, nstate);
853 sc->sc_newstate(ic, nstate, arg);
855 usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER);
856 lwkt_serialize_enter(ifp->if_serializer);
863 /* quickly determine if a given rate is CCK or OFDM */
864 #define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
866 #define RAL_ACK_SIZE (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
868 #define RAL_RXTX_TURNAROUND 5 /* us */
871 * This function is only used by the Rx radiotap code.
874 ural_rxrate(struct ural_rx_desc *desc)
876 if (le32toh(desc->flags) & RAL_RX_OFDM) {
877 /* reverse function of ural_plcp_signal */
878 switch (desc->rate) {
886 case 0xc: return 108;
889 if (desc->rate == 10)
891 if (desc->rate == 20)
893 if (desc->rate == 55)
895 if (desc->rate == 110)
898 return 2; /* should not get there */
902 ural_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
904 struct ural_tx_data *data = priv;
905 struct ural_softc *sc = data->sc;
906 struct ieee80211_node *ni;
907 struct ifnet *ifp = &sc->sc_ic.ic_if;
914 if (status != USBD_NORMAL_COMPLETION) {
915 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
920 kprintf("%s: could not transmit buffer: %s\n",
921 device_get_nameunit(sc->sc_dev), usbd_errstr(status));
923 if (status == USBD_STALLED)
924 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
939 DPRINTFN(10, ("tx done\n"));
942 ifp->if_flags &= ~IFF_OACTIVE;
944 lwkt_serialize_enter(ifp->if_serializer);
945 ieee80211_free_node(ni);
947 lwkt_serialize_exit(ifp->if_serializer);
953 ural_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
955 struct ural_rx_data *data = priv;
956 struct ural_softc *sc = data->sc;
957 struct ieee80211com *ic = &sc->sc_ic;
958 struct ifnet *ifp = &ic->ic_if;
959 struct ural_rx_desc *desc;
960 struct ieee80211_frame *wh;
961 struct ieee80211_node *ni;
962 struct mbuf *mnew, *m;
970 if (status != USBD_NORMAL_COMPLETION) {
971 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
976 if (status == USBD_STALLED)
977 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
981 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
983 if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
984 DPRINTF(("%s: xfer too short %d\n", device_get_nameunit(sc->sc_dev),
990 /* rx descriptor is located at the end */
991 desc = (struct ural_rx_desc *)(data->buf + len - RAL_RX_DESC_SIZE);
993 if ((le32toh(desc->flags) & RAL_RX_PHY_ERROR) ||
994 (le32toh(desc->flags) & RAL_RX_CRC_ERROR)) {
996 * This should not happen since we did not request to receive
997 * those frames when we filled RAL_TXRX_CSR2.
999 DPRINTFN(5, ("PHY or CRC error\n"));
1004 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1014 lwkt_serialize_enter(ifp->if_serializer);
1017 m->m_pkthdr.rcvif = ifp;
1018 m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff;
1020 if (sc->sc_drvbpf != NULL) {
1021 struct ural_rx_radiotap_header *tap = &sc->sc_rxtap;
1023 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; /* h/w leaves FCS */
1024 tap->wr_rate = ural_rxrate(desc);
1025 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq);
1026 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
1027 tap->wr_antenna = sc->rx_ant;
1028 tap->wr_antsignal = URAL_RSSI(desc->rssi);
1030 bpf_ptap(sc->sc_drvbpf, m, tap, sc->sc_rxtap_len);
1033 /* trim CRC here so WEP can find its own CRC at the end of packet. */
1034 m_adj(m, -IEEE80211_CRC_LEN);
1036 wh = mtod(m, struct ieee80211_frame *);
1037 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
1039 /* send the frame to the 802.11 layer */
1040 ieee80211_input(ic, m, ni, URAL_RSSI(desc->rssi), 0);
1042 /* node is no longer needed */
1043 ieee80211_free_node(ni);
1045 lwkt_serialize_exit(ifp->if_serializer);
1048 data->buf = mtod(data->m, uint8_t *);
1050 DPRINTFN(15, ("rx done\n"));
1052 skip: /* setup a new transfer */
1053 usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES,
1054 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
1055 usbd_transfer(xfer);
1061 ural_plcp_signal(int rate)
1064 /* CCK rates (returned values are device-dependent) */
1067 case 11: return 0x2;
1068 case 22: return 0x3;
1070 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1071 case 12: return 0xb;
1072 case 18: return 0xf;
1073 case 24: return 0xa;
1074 case 36: return 0xe;
1075 case 48: return 0x9;
1076 case 72: return 0xd;
1077 case 96: return 0x8;
1078 case 108: return 0xc;
1080 /* unsupported rates (should not get there) */
1081 default: return 0xff;
1086 ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc,
1087 uint32_t flags, int len, int rate)
1089 struct ieee80211com *ic = &sc->sc_ic;
1090 uint16_t plcp_length;
1093 desc->flags = htole32(flags);
1094 desc->flags |= htole32(RAL_TX_NEWSEQ);
1095 desc->flags |= htole32(len << 16);
1097 desc->wme = htole16(RAL_AIFSN(2) | RAL_LOGCWMIN(3) | RAL_LOGCWMAX(5));
1098 desc->wme |= htole16(RAL_IVOFFSET(sizeof (struct ieee80211_frame)));
1100 /* setup PLCP fields */
1101 desc->plcp_signal = ural_plcp_signal(rate);
1102 desc->plcp_service = 4;
1104 len += IEEE80211_CRC_LEN;
1105 if (RAL_RATE_IS_OFDM(rate)) {
1106 desc->flags |= htole32(RAL_TX_OFDM);
1108 plcp_length = len & 0xfff;
1109 desc->plcp_length_hi = plcp_length >> 6;
1110 desc->plcp_length_lo = plcp_length & 0x3f;
1112 plcp_length = (16 * len + rate - 1) / rate;
1114 remainder = (16 * len) % 22;
1115 if (remainder != 0 && remainder < 7)
1116 desc->plcp_service |= RAL_PLCP_LENGEXT;
1118 desc->plcp_length_hi = plcp_length >> 8;
1119 desc->plcp_length_lo = plcp_length & 0xff;
1121 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1122 desc->plcp_signal |= 0x08;
1129 #define RAL_TX_TIMEOUT 5000
1132 ural_tx_bcn(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1134 struct ural_tx_desc *desc;
1135 usbd_xfer_handle xfer;
1141 rate = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? 12 : 2;
1143 xfer = usbd_alloc_xfer(sc->sc_udev);
1147 /* xfer length needs to be a multiple of two! */
1148 xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
1150 buf = usbd_alloc_buffer(xfer, xferlen);
1152 usbd_free_xfer(xfer);
1156 usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, &cmd, sizeof cmd,
1157 USBD_FORCE_SHORT_XFER, RAL_TX_TIMEOUT, NULL);
1159 error = usbd_sync_transfer(xfer);
1161 usbd_free_xfer(xfer);
1165 desc = (struct ural_tx_desc *)buf;
1167 m_copydata(m0, 0, m0->m_pkthdr.len, buf + RAL_TX_DESC_SIZE);
1168 ural_setup_tx_desc(sc, desc, RAL_TX_IFS_NEWBACKOFF | RAL_TX_TIMESTAMP,
1169 m0->m_pkthdr.len, rate);
1171 DPRINTFN(10, ("sending beacon frame len=%u rate=%u xfer len=%u\n",
1172 m0->m_pkthdr.len, rate, xferlen));
1174 usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, buf, xferlen,
1175 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT, NULL);
1177 error = usbd_sync_transfer(xfer);
1178 usbd_free_xfer(xfer);
1184 ural_tx_mgt(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1186 struct ieee80211com *ic = &sc->sc_ic;
1187 struct ifnet *ifp = &ic->ic_if;
1188 struct ural_tx_desc *desc;
1189 struct ural_tx_data *data;
1190 struct ieee80211_frame *wh;
1196 data = &sc->tx_data[0];
1197 desc = (struct ural_tx_desc *)data->buf;
1199 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2;
1204 wh = mtod(m0, struct ieee80211_frame *);
1206 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1207 flags |= RAL_TX_ACK;
1209 dur = ieee80211_txtime(ni, RAL_ACK_SIZE, rate, ic->ic_flags) +
1211 *(uint16_t *)wh->i_dur = htole16(dur);
1213 /* tell hardware to add timestamp for probe responses */
1214 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1215 IEEE80211_FC0_TYPE_MGT &&
1216 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1217 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1218 flags |= RAL_TX_TIMESTAMP;
1221 if (sc->sc_drvbpf != NULL) {
1222 struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
1225 tap->wt_rate = rate;
1226 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
1227 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
1228 tap->wt_antenna = sc->tx_ant;
1230 bpf_ptap(sc->sc_drvbpf, m0, tap, sc->sc_txtap_len);
1233 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
1234 ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
1236 /* align end on a 2-bytes boundary */
1237 xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
1240 * No space left in the last URB to store the extra 2 bytes, force
1241 * sending of another URB.
1243 if ((xferlen % 64) == 0)
1246 DPRINTFN(10, ("sending mgt frame len=%u rate=%u xfer len=%u\n",
1247 m0->m_pkthdr.len, rate, xferlen));
1249 lwkt_serialize_exit(ifp->if_serializer);
1251 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
1252 xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
1255 error = usbd_transfer(data->xfer);
1256 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
1265 lwkt_serialize_enter(ifp->if_serializer);
1270 ural_tx_data(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1272 struct ieee80211com *ic = &sc->sc_ic;
1273 struct ifnet *ifp = &ic->ic_if;
1274 struct ural_tx_desc *desc;
1275 struct ural_tx_data *data;
1276 struct ieee80211_frame *wh;
1277 struct ieee80211_key *k;
1281 int xferlen, rate, rate_idx;
1283 wh = mtod(m0, struct ieee80211_frame *);
1285 ieee80211_ratectl_findrate(ni, m0->m_pkthdr.len, &rate_idx, 1);
1286 rate = IEEE80211_RS_RATE(&ni->ni_rates, rate_idx);
1288 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1289 k = ieee80211_crypto_encap(ic, ni, m0);
1295 /* packet header may have moved, reset our local pointer */
1296 wh = mtod(m0, struct ieee80211_frame *);
1299 data = &sc->tx_data[0];
1300 desc = (struct ural_tx_desc *)data->buf;
1305 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1306 flags |= RAL_TX_ACK;
1307 flags |= RAL_TX_RETRY(sc->sc_tx_retries);
1309 dur = ieee80211_txtime(ni, RAL_ACK_SIZE,
1310 ieee80211_ack_rate(ni, rate), ic->ic_flags) +
1312 *(uint16_t *)wh->i_dur = htole16(dur);
1315 if (sc->sc_drvbpf != NULL) {
1316 struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
1319 tap->wt_rate = rate;
1320 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
1321 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
1322 tap->wt_antenna = sc->tx_ant;
1324 bpf_ptap(sc->sc_drvbpf, m0, tap, sc->sc_txtap_len);
1327 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
1328 ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
1330 /* align end on a 2-bytes boundary */
1331 xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
1334 * No space left in the last URB to store the extra 2 bytes, force
1335 * sending of another URB.
1337 if ((xferlen % 64) == 0)
1340 DPRINTFN(10, ("sending data frame len=%u rate=%u xfer len=%u\n",
1341 m0->m_pkthdr.len, rate, xferlen));
1343 lwkt_serialize_exit(ifp->if_serializer);
1345 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
1346 xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
1349 error = usbd_transfer(data->xfer);
1350 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
1359 lwkt_serialize_enter(ifp->if_serializer);
1364 ural_start(struct ifnet *ifp)
1366 struct ural_softc *sc = ifp->if_softc;
1367 struct ieee80211com *ic = &sc->sc_ic;
1369 ASSERT_SERIALIZED(ifp->if_serializer);
1371 if (sc->sc_stopped) {
1372 ifq_purge(&ifp->if_snd);
1378 if ((ifp->if_flags & (IFF_OACTIVE | IFF_RUNNING)) != IFF_RUNNING) {
1384 struct ieee80211_node *ni;
1387 if (!IF_QEMPTY(&ic->ic_mgtq)) {
1388 if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
1389 ifp->if_flags |= IFF_OACTIVE;
1392 IF_DEQUEUE(&ic->ic_mgtq, m0);
1394 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
1395 m0->m_pkthdr.rcvif = NULL;
1397 if (ic->ic_rawbpf != NULL)
1398 bpf_mtap(ic->ic_rawbpf, m0);
1400 if (ural_tx_mgt(sc, m0, ni) != 0) {
1401 ieee80211_free_node(ni);
1405 struct ether_header *eh;
1407 if (ic->ic_state != IEEE80211_S_RUN) {
1408 ifq_purge(&ifp->if_snd);
1412 if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
1413 ifp->if_flags |= IFF_OACTIVE;
1417 m0 = ifq_dequeue(&ifp->if_snd, NULL);
1421 if (m0->m_len < sizeof (struct ether_header)) {
1422 m0 = m_pullup(m0, sizeof (struct ether_header));
1429 eh = mtod(m0, struct ether_header *);
1430 ni = ieee80211_find_txnode(ic, eh->ether_dhost);
1437 m0 = ieee80211_encap(ic, m0, ni);
1439 ieee80211_free_node(ni);
1443 if (ic->ic_rawbpf != NULL)
1444 bpf_mtap(ic->ic_rawbpf, m0);
1446 if (ural_tx_data(sc, m0, ni) != 0) {
1447 ieee80211_free_node(ni);
1453 sc->sc_tx_timer = 5;
1461 ural_watchdog(struct ifnet *ifp)
1463 struct ural_softc *sc = ifp->if_softc;
1464 struct ieee80211com *ic = &sc->sc_ic;
1466 ASSERT_SERIALIZED(ifp->if_serializer);
1472 if (sc->sc_tx_timer > 0) {
1473 if (--sc->sc_tx_timer == 0) {
1474 device_printf(sc->sc_dev, "device timeout\n");
1475 /*ural_init(sc); XXX needs a process context! */
1483 ieee80211_watchdog(ic);
1489 * This function allows for fast channel switching in monitor mode (used by
1490 * net-mgmt/kismet). In IBSS mode, we must explicitly reset the interface to
1491 * generate a new beacon frame.
1494 ural_reset(struct ifnet *ifp)
1496 struct ural_softc *sc = ifp->if_softc;
1497 struct ieee80211com *ic = &sc->sc_ic;
1499 ASSERT_SERIALIZED(ifp->if_serializer);
1501 if (ic->ic_opmode != IEEE80211_M_MONITOR)
1506 lwkt_serialize_exit(ifp->if_serializer);
1507 ural_set_chan(sc, ic->ic_curchan);
1508 lwkt_serialize_enter(ifp->if_serializer);
1516 ural_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1518 struct ural_softc *sc = ifp->if_softc;
1519 struct ieee80211com *ic = &sc->sc_ic;
1522 ASSERT_SERIALIZED(ifp->if_serializer);
1528 if (ifp->if_flags & IFF_UP) {
1529 if (ifp->if_flags & IFF_RUNNING) {
1530 lwkt_serialize_exit(ifp->if_serializer);
1531 ural_update_promisc(sc);
1532 lwkt_serialize_enter(ifp->if_serializer);
1537 if (ifp->if_flags & IFF_RUNNING)
1543 error = ieee80211_ioctl(ic, cmd, data, cr);
1546 if (error == ENETRESET) {
1547 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
1548 (IFF_UP | IFF_RUNNING) &&
1549 ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
1559 ural_set_testmode(struct ural_softc *sc)
1561 usb_device_request_t req;
1564 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1565 req.bRequest = RAL_VENDOR_REQUEST;
1566 USETW(req.wValue, 4);
1567 USETW(req.wIndex, 1);
1568 USETW(req.wLength, 0);
1570 error = usbd_do_request(sc->sc_udev, &req, NULL);
1572 kprintf("%s: could not set test mode: %s\n",
1573 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1578 ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len)
1580 usb_device_request_t req;
1583 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1584 req.bRequest = RAL_READ_EEPROM;
1585 USETW(req.wValue, 0);
1586 USETW(req.wIndex, addr);
1587 USETW(req.wLength, len);
1589 error = usbd_do_request(sc->sc_udev, &req, buf);
1591 kprintf("%s: could not read EEPROM: %s\n",
1592 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1597 ural_read(struct ural_softc *sc, uint16_t reg)
1599 usb_device_request_t req;
1603 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1604 req.bRequest = RAL_READ_MAC;
1605 USETW(req.wValue, 0);
1606 USETW(req.wIndex, reg);
1607 USETW(req.wLength, sizeof (uint16_t));
1609 error = usbd_do_request(sc->sc_udev, &req, &val);
1611 kprintf("%s: could not read MAC register: %s\n",
1612 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1616 return le16toh(val);
1620 ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
1622 usb_device_request_t req;
1625 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1626 req.bRequest = RAL_READ_MULTI_MAC;
1627 USETW(req.wValue, 0);
1628 USETW(req.wIndex, reg);
1629 USETW(req.wLength, len);
1631 error = usbd_do_request(sc->sc_udev, &req, buf);
1633 kprintf("%s: could not read MAC register: %s\n",
1634 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1639 ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val)
1641 usb_device_request_t req;
1644 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1645 req.bRequest = RAL_WRITE_MAC;
1646 USETW(req.wValue, val);
1647 USETW(req.wIndex, reg);
1648 USETW(req.wLength, 0);
1650 error = usbd_do_request(sc->sc_udev, &req, NULL);
1652 kprintf("%s: could not write MAC register: %s\n",
1653 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1658 ural_write_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
1660 usb_device_request_t req;
1663 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1664 req.bRequest = RAL_WRITE_MULTI_MAC;
1665 USETW(req.wValue, 0);
1666 USETW(req.wIndex, reg);
1667 USETW(req.wLength, len);
1669 error = usbd_do_request(sc->sc_udev, &req, buf);
1671 kprintf("%s: could not write MAC register: %s\n",
1672 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1677 ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val)
1682 for (ntries = 0; ntries < 5; ntries++) {
1683 if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
1687 kprintf("%s: could not write to BBP\n", device_get_nameunit(sc->sc_dev));
1691 tmp = reg << 8 | val;
1692 ural_write(sc, RAL_PHY_CSR7, tmp);
1696 ural_bbp_read(struct ural_softc *sc, uint8_t reg)
1701 val = RAL_BBP_WRITE | reg << 8;
1702 ural_write(sc, RAL_PHY_CSR7, val);
1704 for (ntries = 0; ntries < 5; ntries++) {
1705 if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
1709 kprintf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
1713 return ural_read(sc, RAL_PHY_CSR7) & 0xff;
1717 ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val)
1722 for (ntries = 0; ntries < 5; ntries++) {
1723 if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY))
1727 kprintf("%s: could not write to RF\n", device_get_nameunit(sc->sc_dev));
1731 tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3);
1732 ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff);
1733 ural_write(sc, RAL_PHY_CSR10, tmp >> 16);
1735 /* remember last written value in sc */
1736 sc->rf_regs[reg] = val;
1738 DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff));
1742 ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c)
1744 struct ieee80211com *ic = &sc->sc_ic;
1748 chan = ieee80211_chan2ieee(ic, c);
1749 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1752 if (IEEE80211_IS_CHAN_2GHZ(c))
1753 power = min(sc->txpow[chan - 1], 31);
1757 /* adjust txpower using ifconfig settings */
1758 power -= (100 - ic->ic_txpowlimit) / 8;
1760 DPRINTFN(2, ("setting channel to %u, txpower to %u\n", chan, power));
1762 switch (sc->rf_rev) {
1764 ural_rf_write(sc, RAL_RF1, 0x00814);
1765 ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]);
1766 ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
1770 ural_rf_write(sc, RAL_RF1, 0x08804);
1771 ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]);
1772 ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
1773 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1777 ural_rf_write(sc, RAL_RF1, 0x0c808);
1778 ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]);
1779 ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
1780 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1784 ural_rf_write(sc, RAL_RF1, 0x08808);
1785 ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]);
1786 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1787 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1789 ural_rf_write(sc, RAL_RF1, 0x08808);
1790 ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]);
1791 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1792 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
1796 ural_rf_write(sc, RAL_RF1, 0x08808);
1797 ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]);
1798 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1799 ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
1803 ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]);
1804 ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
1805 ural_rf_write(sc, RAL_RF1, 0x08804);
1807 ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]);
1808 ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
1809 ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
1814 for (i = 0; ural_rf5222[i].chan != chan; i++)
1817 ural_rf_write(sc, RAL_RF1, ural_rf5222[i].r1);
1818 ural_rf_write(sc, RAL_RF2, ural_rf5222[i].r2);
1819 ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
1820 ural_rf_write(sc, RAL_RF4, ural_rf5222[i].r4);
1824 if (ic->ic_opmode != IEEE80211_M_MONITOR &&
1825 ic->ic_state != IEEE80211_S_SCAN) {
1826 /* set Japan filter bit for channel 14 */
1827 tmp = ural_bbp_read(sc, 70);
1829 tmp &= ~RAL_JAPAN_FILTER;
1831 tmp |= RAL_JAPAN_FILTER;
1833 ural_bbp_write(sc, 70, tmp);
1835 /* clear CRC errors */
1836 ural_read(sc, RAL_STA_CSR0);
1839 ural_disable_rf_tune(sc);
1842 sc->sc_sifs = IEEE80211_IS_CHAN_5GHZ(c) ? IEEE80211_DUR_OFDM_SIFS
1843 : IEEE80211_DUR_SIFS;
1847 * Disable RF auto-tuning.
1850 ural_disable_rf_tune(struct ural_softc *sc)
1854 if (sc->rf_rev != RAL_RF_2523) {
1855 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
1856 ural_rf_write(sc, RAL_RF1, tmp);
1859 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
1860 ural_rf_write(sc, RAL_RF3, tmp);
1862 DPRINTFN(2, ("disabling RF autotune\n"));
1866 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
1870 ural_enable_tsf_sync(struct ural_softc *sc)
1872 struct ieee80211com *ic = &sc->sc_ic;
1873 uint16_t logcwmin, preload, tmp;
1875 /* first, disable TSF synchronization */
1876 ural_write(sc, RAL_TXRX_CSR19, 0);
1878 tmp = (16 * ic->ic_bss->ni_intval) << 4;
1879 ural_write(sc, RAL_TXRX_CSR18, tmp);
1881 logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0;
1882 preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6;
1883 tmp = logcwmin << 12 | preload;
1884 ural_write(sc, RAL_TXRX_CSR20, tmp);
1886 /* finally, enable TSF synchronization */
1887 tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN;
1888 if (ic->ic_opmode == IEEE80211_M_STA)
1889 tmp |= RAL_ENABLE_TSF_SYNC(1);
1891 tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR;
1892 ural_write(sc, RAL_TXRX_CSR19, tmp);
1894 DPRINTF(("enabling TSF synchronization\n"));
1898 ural_update_slot(struct ifnet *ifp)
1900 struct ural_softc *sc = ifp->if_softc;
1901 struct ieee80211com *ic = &sc->sc_ic;
1902 uint16_t slottime, sifs, eifs;
1904 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1907 * These settings may sound a bit inconsistent but this is what the
1908 * reference driver does.
1910 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1911 sifs = 16 - RAL_RXTX_TURNAROUND;
1914 sifs = 10 - RAL_RXTX_TURNAROUND;
1918 ural_write(sc, RAL_MAC_CSR10, slottime);
1919 ural_write(sc, RAL_MAC_CSR11, sifs);
1920 ural_write(sc, RAL_MAC_CSR12, eifs);
1924 ural_set_txpreamble(struct ural_softc *sc)
1928 tmp = ural_read(sc, RAL_TXRX_CSR10);
1930 tmp &= ~RAL_SHORT_PREAMBLE;
1931 if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
1932 tmp |= RAL_SHORT_PREAMBLE;
1934 ural_write(sc, RAL_TXRX_CSR10, tmp);
1938 ural_set_basicrates(struct ural_softc *sc)
1940 struct ieee80211com *ic = &sc->sc_ic;
1942 /* update basic rate set */
1943 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1944 /* 11b basic rates: 1, 2Mbps */
1945 ural_write(sc, RAL_TXRX_CSR11, 0x3);
1946 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) {
1947 /* 11a basic rates: 6, 12, 24Mbps */
1948 ural_write(sc, RAL_TXRX_CSR11, 0x150);
1950 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
1951 ural_write(sc, RAL_TXRX_CSR11, 0x15f);
1956 ural_set_bssid(struct ural_softc *sc, uint8_t *bssid)
1960 tmp = bssid[0] | bssid[1] << 8;
1961 ural_write(sc, RAL_MAC_CSR5, tmp);
1963 tmp = bssid[2] | bssid[3] << 8;
1964 ural_write(sc, RAL_MAC_CSR6, tmp);
1966 tmp = bssid[4] | bssid[5] << 8;
1967 ural_write(sc, RAL_MAC_CSR7, tmp);
1969 DPRINTF(("setting BSSID to %6D\n", bssid, ":"));
1973 ural_set_macaddr(struct ural_softc *sc, uint8_t *addr)
1977 tmp = addr[0] | addr[1] << 8;
1978 ural_write(sc, RAL_MAC_CSR2, tmp);
1980 tmp = addr[2] | addr[3] << 8;
1981 ural_write(sc, RAL_MAC_CSR3, tmp);
1983 tmp = addr[4] | addr[5] << 8;
1984 ural_write(sc, RAL_MAC_CSR4, tmp);
1986 DPRINTF(("setting MAC address to %6D\n", addr, ":"));
1990 ural_update_promisc(struct ural_softc *sc)
1992 struct ifnet *ifp = &sc->sc_ic.ic_if;
1995 tmp = ural_read(sc, RAL_TXRX_CSR2);
1997 tmp &= ~RAL_DROP_NOT_TO_ME;
1998 if (!(ifp->if_flags & IFF_PROMISC))
1999 tmp |= RAL_DROP_NOT_TO_ME;
2001 ural_write(sc, RAL_TXRX_CSR2, tmp);
2003 DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
2004 "entering" : "leaving"));
2008 ural_get_rf(int rev)
2011 case RAL_RF_2522: return "RT2522";
2012 case RAL_RF_2523: return "RT2523";
2013 case RAL_RF_2524: return "RT2524";
2014 case RAL_RF_2525: return "RT2525";
2015 case RAL_RF_2525E: return "RT2525e";
2016 case RAL_RF_2526: return "RT2526";
2017 case RAL_RF_5222: return "RT5222";
2018 default: return "unknown";
2023 ural_read_eeprom(struct ural_softc *sc)
2025 struct ieee80211com *ic = &sc->sc_ic;
2028 ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2);
2030 sc->rf_rev = (val >> 11) & 0x7;
2031 sc->hw_radio = (val >> 10) & 0x1;
2032 sc->led_mode = (val >> 6) & 0x7;
2033 sc->rx_ant = (val >> 4) & 0x3;
2034 sc->tx_ant = (val >> 2) & 0x3;
2035 sc->nb_ant = val & 0x3;
2037 /* read MAC address */
2038 ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, ic->ic_myaddr, 6);
2040 /* read default values for BBP registers */
2041 ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
2043 /* read Tx power for all b/g channels */
2044 ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14);
2048 ural_bbp_init(struct ural_softc *sc)
2050 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2053 /* wait for BBP to be ready */
2054 for (ntries = 0; ntries < 100; ntries++) {
2055 if (ural_bbp_read(sc, RAL_BBP_VERSION) != 0)
2059 if (ntries == 100) {
2060 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2064 /* initialize BBP registers to default values */
2065 for (i = 0; i < N(ural_def_bbp); i++)
2066 ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val);
2069 /* initialize BBP registers to values stored in EEPROM */
2070 for (i = 0; i < 16; i++) {
2071 if (sc->bbp_prom[i].reg == 0xff)
2073 ural_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2082 ural_set_txantenna(struct ural_softc *sc, int antenna)
2087 tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK;
2090 else if (antenna == 2)
2093 tx |= RAL_BBP_DIVERSITY;
2095 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2096 if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 ||
2097 sc->rf_rev == RAL_RF_5222)
2098 tx |= RAL_BBP_FLIPIQ;
2100 ural_bbp_write(sc, RAL_BBP_TX, tx);
2102 /* update values in PHY_CSR5 and PHY_CSR6 */
2103 tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7;
2104 ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7));
2106 tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7;
2107 ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7));
2111 ural_set_rxantenna(struct ural_softc *sc, int antenna)
2115 rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK;
2118 else if (antenna == 2)
2121 rx |= RAL_BBP_DIVERSITY;
2123 /* need to force no I/Q flip for RF 2525e and 2526 */
2124 if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526)
2125 rx &= ~RAL_BBP_FLIPIQ;
2127 ural_bbp_write(sc, RAL_BBP_RX, rx);
2131 ural_init(void *priv)
2133 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2134 struct ural_softc *sc = priv;
2135 struct ieee80211com *ic = &sc->sc_ic;
2136 struct ifnet *ifp = &ic->ic_if;
2137 struct ural_rx_data *data;
2139 usbd_status usb_err;
2140 int i, ntries, error;
2142 ASSERT_SERIALIZED(ifp->if_serializer);
2146 lwkt_serialize_exit(ifp->if_serializer);
2147 ural_set_testmode(sc);
2148 ural_write(sc, 0x308, 0x00f0); /* XXX magic */
2149 lwkt_serialize_enter(ifp->if_serializer);
2154 lwkt_serialize_exit(ifp->if_serializer);
2156 /* initialize MAC registers to default values */
2157 for (i = 0; i < N(ural_def_mac); i++)
2158 ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val);
2160 /* wait for BBP and RF to wake up (this can take a long time!) */
2161 for (ntries = 0; ntries < 100; ntries++) {
2162 tmp = ural_read(sc, RAL_MAC_CSR17);
2163 if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) ==
2164 (RAL_BBP_AWAKE | RAL_RF_AWAKE))
2168 if (ntries == 100) {
2169 kprintf("%s: timeout waiting for BBP/RF to wakeup\n",
2170 device_get_nameunit(sc->sc_dev));
2176 ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY);
2178 /* set basic rate set (will be updated later) */
2179 ural_write(sc, RAL_TXRX_CSR11, 0x15f);
2181 error = ural_bbp_init(sc);
2185 /* set default BSS channel */
2186 ural_set_chan(sc, ic->ic_curchan);
2188 /* clear statistic registers (STA_CSR0 to STA_CSR10) */
2189 ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
2191 ural_set_txantenna(sc, sc->tx_ant);
2192 ural_set_rxantenna(sc, sc->rx_ant);
2194 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
2195 ural_set_macaddr(sc, ic->ic_myaddr);
2198 * Allocate xfer for AMRR statistics requests.
2200 sc->stats_xfer = usbd_alloc_xfer(sc->sc_udev);
2201 if (sc->stats_xfer == NULL) {
2202 kprintf("%s: could not allocate AMRR xfer\n",
2203 device_get_nameunit(sc->sc_dev));
2209 * Open Tx and Rx USB bulk pipes.
2211 usb_err = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE,
2214 kprintf("%s: could not open Tx pipe: %s\n",
2215 device_get_nameunit(sc->sc_dev), usbd_errstr(usb_err));
2220 usb_err = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
2223 kprintf("%s: could not open Rx pipe: %s\n",
2224 device_get_nameunit(sc->sc_dev), usbd_errstr(usb_err));
2230 * Allocate Tx and Rx xfer queues.
2232 error = ural_alloc_tx_list(sc);
2234 kprintf("%s: could not allocate Tx list\n",
2235 device_get_nameunit(sc->sc_dev));
2239 error = ural_alloc_rx_list(sc);
2241 kprintf("%s: could not allocate Rx list\n",
2242 device_get_nameunit(sc->sc_dev));
2247 * Start up the receive pipe.
2249 for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
2250 data = &sc->rx_data[i];
2252 usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf,
2253 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
2254 usbd_transfer(data->xfer);
2258 tmp = RAL_DROP_PHY | RAL_DROP_CRC;
2259 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2260 tmp |= RAL_DROP_CTL | RAL_DROP_BAD_VERSION;
2261 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2262 tmp |= RAL_DROP_TODS;
2263 if (!(ifp->if_flags & IFF_PROMISC))
2264 tmp |= RAL_DROP_NOT_TO_ME;
2266 ural_write(sc, RAL_TXRX_CSR2, tmp);
2268 /* clear statistic registers (STA_CSR0 to STA_CSR10) */
2269 ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof(sc->sta));
2271 lwkt_serialize_enter(ifp->if_serializer);
2275 ifp->if_flags &= ~IFF_OACTIVE;
2276 ifp->if_flags |= IFF_RUNNING;
2278 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2279 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
2280 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
2282 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
2291 ural_stop(struct ural_softc *sc)
2293 struct ieee80211com *ic = &sc->sc_ic;
2294 struct ifnet *ifp = &ic->ic_if;
2296 ASSERT_SERIALIZED(ifp->if_serializer);
2300 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
2303 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
2305 sc->sc_tx_timer = 0;
2308 lwkt_serialize_exit(ifp->if_serializer);
2311 ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX);
2313 /* reset ASIC and BBP (but won't reset MAC registers!) */
2314 ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP);
2315 ural_write(sc, RAL_MAC_CSR1, 0);
2317 if (sc->stats_xfer != NULL) {
2318 usbd_free_xfer(sc->stats_xfer);
2319 sc->stats_xfer = NULL;
2322 if (sc->sc_rx_pipeh != NULL) {
2323 usbd_abort_pipe(sc->sc_rx_pipeh);
2324 usbd_close_pipe(sc->sc_rx_pipeh);
2325 sc->sc_rx_pipeh = NULL;
2328 if (sc->sc_tx_pipeh != NULL) {
2329 usbd_abort_pipe(sc->sc_tx_pipeh);
2330 usbd_close_pipe(sc->sc_tx_pipeh);
2331 sc->sc_tx_pipeh = NULL;
2334 lwkt_serialize_enter(ifp->if_serializer);
2336 ural_free_rx_list(sc);
2337 ural_free_tx_list(sc);
2343 ural_stats_timeout(void *arg)
2345 struct ural_softc *sc = (struct ural_softc *)arg;
2346 usb_device_request_t req;
2354 * Asynchronously read statistic registers (cleared by read).
2356 req.bmRequestType = UT_READ_VENDOR_DEVICE;
2357 req.bRequest = RAL_READ_MULTI_MAC;
2358 USETW(req.wValue, 0);
2359 USETW(req.wIndex, RAL_STA_CSR0);
2360 USETW(req.wLength, sizeof(sc->sta));
2362 usbd_setup_default_xfer(sc->stats_xfer, sc->sc_udev, sc,
2363 USBD_DEFAULT_TIMEOUT, &req,
2364 sc->sta, sizeof(sc->sta), 0,
2366 usbd_transfer(sc->stats_xfer);
2372 ural_stats_update(usbd_xfer_handle xfer, usbd_private_handle priv,
2375 struct ural_softc *sc = (struct ural_softc *)priv;
2376 struct ifnet *ifp = &sc->sc_ic.ic_if;
2377 struct ieee80211_ratectl_stats *stats = &sc->sc_stats;
2379 if (status != USBD_NORMAL_COMPLETION) {
2380 device_printf(sc->sc_dev, "could not retrieve Tx statistics - "
2381 "cancelling automatic rate control\n");
2387 /* count TX retry-fail as Tx errors */
2388 ifp->if_oerrors += sc->sta[RAL_TX_PKT_FAIL];
2390 stats->stats_pkt_ok += sc->sta[RAL_TX_PKT_NO_RETRY] +
2391 sc->sta[RAL_TX_PKT_ONE_RETRY] +
2392 sc->sta[RAL_TX_PKT_MULTI_RETRY];
2394 stats->stats_pkt_err += sc->sta[RAL_TX_PKT_FAIL];
2396 stats->stats_pkt_noretry += sc->sta[RAL_TX_PKT_NO_RETRY];
2398 stats->stats_retries += sc->sta[RAL_TX_PKT_ONE_RETRY];
2401 * XXX Estimated average:
2402 * Actual number of retries for each packet should belong to
2403 * [2, sc->sc_tx_retries]
2405 stats->stats_retries += sc->sta[RAL_TX_PKT_MULTI_RETRY] *
2406 ((2 + sc->sc_tx_retries) / 2);
2408 stats->stats_retries += sc->sta[RAL_TX_PKT_MULTI_RETRY];
2410 stats->stats_retries += sc->sta[RAL_TX_PKT_FAIL] * sc->sc_tx_retries;
2412 callout_reset(&sc->stats_ch, 4 * hz / 5, ural_stats_timeout, sc);
2418 ural_stats(struct ieee80211com *ic, struct ieee80211_node *ni __unused,
2419 struct ieee80211_ratectl_stats *stats)
2421 struct ifnet *ifp = &ic->ic_if;
2422 struct ural_softc *sc = ifp->if_softc;
2424 ASSERT_SERIALIZED(ifp->if_serializer);
2426 bcopy(&sc->sc_stats, stats, sizeof(*stats));
2427 bzero(&sc->sc_stats, sizeof(sc->sc_stats));
2431 ural_ratectl_attach(struct ieee80211com *ic, u_int rc)
2433 struct ural_softc *sc = ic->ic_if.if_softc;
2436 case IEEE80211_RATECTL_ONOE:
2437 return &sc->sc_onoe_param;
2438 case IEEE80211_RATECTL_NONE:
2439 /* This could only happen during detaching */
2442 panic("unknown rate control algo %u\n", rc);