1 /* $OpenBSD: if_rum.c,v 1.40 2006/09/18 16:20:20 damien Exp $ */
2 /* $DragonFly: src/sys/dev/netif/rum/if_rum.c,v 1.16 2007/07/01 21:24:02 hasso Exp $ */
5 * Copyright (c) 2005, 2006 Damien Bergamini <damien.bergamini@free.fr>
6 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 * Ralink Technology RT2501USB/RT2601USB chipset driver
23 * http://www.ralinktech.com/
26 #include <sys/param.h>
28 #include <sys/endian.h>
29 #include <sys/kernel.h>
30 #include <sys/malloc.h>
33 #include <sys/serialize.h>
34 #include <sys/socket.h>
35 #include <sys/sockio.h>
38 #include <net/ethernet.h>
40 #include <net/if_arp.h>
41 #include <net/if_dl.h>
42 #include <net/if_media.h>
43 #include <net/ifq_var.h>
45 #include <netproto/802_11/ieee80211_var.h>
46 #include <netproto/802_11/ieee80211_radiotap.h>
47 #include <netproto/802_11/wlan_ratectl/onoe/ieee80211_onoe_param.h>
49 #include <bus/usb/usb.h>
50 #include <bus/usb/usbdi.h>
51 #include <bus/usb/usbdi_util.h>
52 #include <bus/usb/usbdevs.h>
54 #include "if_rumreg.h"
55 #include "if_rumvar.h"
56 #include "rum_ucode.h"
63 #define DPRINTF(x) do { if (rum_debug) kprintf x; } while (0)
64 #define DPRINTFN(n, x) do { if (rum_debug >= (n)) kprintf x; } while (0)
68 #define DPRINTFN(n, x)
71 /* various supported device vendors/products */
72 static const struct usb_devno rum_devs[] = {
73 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_HWU54DM },
74 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573 },
75 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_1 },
76 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RT2573_2 },
77 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_WUG2700 },
78 { USB_VENDOR_AMIT, USB_PRODUCT_AMIT_CGWLUSB2GO },
79 { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_WL167G_2 },
80 { USB_VENDOR_ASUS, USB_PRODUCT_ASUS_WL167G_3 },
81 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050A },
82 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D9050V3 },
83 { USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_WUSB54GC },
84 { USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_WUSB54GR },
85 { USB_VENDOR_CONCEPTRONIC, USB_PRODUCT_CONCEPTRONIC_C54RU2 },
86 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_CWD854F },
87 { USB_VENDOR_DICKSMITH, USB_PRODUCT_DICKSMITH_RT2573 },
88 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWLG122C1 },
89 { USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_WUA1340 },
90 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWB01GS },
91 { USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWI05GS },
92 { USB_VENDOR_GIGASET, USB_PRODUCT_GIGASET_RT2573 },
93 { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_RT2573 },
94 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254LB },
95 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254V2AP },
96 { USB_VENDOR_HUAWEI3COM, USB_PRODUCT_HUAWEI3COM_RT2573 },
97 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_G54HP },
98 { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_SG54HP },
99 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573 },
100 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_1 },
101 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_2 },
102 { USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2573_3 },
103 { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RT2573 },
104 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54HP },
105 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUS54MINI2 },
106 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_GWUSMM },
107 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573 },
108 { USB_VENDOR_QCOM, USB_PRODUCT_QCOM_RT2573_2 },
109 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573 },
110 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2671 },
111 { USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2573_2 },
112 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL113R2 },
113 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_WL172 },
114 { USB_VENDOR_SURECOM, USB_PRODUCT_SURECOM_RT2573 }
117 static int rum_alloc_tx_list(struct rum_softc *);
118 static void rum_free_tx_list(struct rum_softc *);
119 static int rum_alloc_rx_list(struct rum_softc *);
120 static void rum_free_rx_list(struct rum_softc *);
121 static int rum_media_change(struct ifnet *);
122 static void rum_next_scan(void *);
123 static void rum_task(void *);
124 static int rum_newstate(struct ieee80211com *,
125 enum ieee80211_state, int);
126 static void rum_txeof(usbd_xfer_handle, usbd_private_handle,
128 static void rum_rxeof(usbd_xfer_handle, usbd_private_handle,
130 static uint8_t rum_rxrate(struct rum_rx_desc *);
131 static uint8_t rum_plcp_signal(int);
132 static void rum_setup_tx_desc(struct rum_softc *,
133 struct rum_tx_desc *, uint32_t, uint16_t, int,
135 static int rum_tx_data(struct rum_softc *, struct mbuf *,
136 struct ieee80211_node *);
137 static void rum_start(struct ifnet *);
138 static void rum_watchdog(struct ifnet *);
139 static int rum_ioctl(struct ifnet *, u_long, caddr_t,
141 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
143 static uint32_t rum_read(struct rum_softc *, uint16_t);
144 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
146 static void rum_write(struct rum_softc *, uint16_t, uint32_t);
147 static void rum_write_multi(struct rum_softc *, uint16_t, void *,
149 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
150 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
151 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
152 static void rum_select_antenna(struct rum_softc *);
153 static void rum_enable_mrr(struct rum_softc *);
154 static void rum_set_txpreamble(struct rum_softc *);
155 static void rum_set_basicrates(struct rum_softc *);
156 static void rum_select_band(struct rum_softc *,
157 struct ieee80211_channel *);
158 static void rum_set_chan(struct rum_softc *,
159 struct ieee80211_channel *);
160 static void rum_enable_tsf_sync(struct rum_softc *);
161 static void rum_update_slot(struct rum_softc *);
162 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
163 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
164 static void rum_update_promisc(struct rum_softc *);
165 static const char *rum_get_rf(int);
166 static void rum_read_eeprom(struct rum_softc *);
167 static int rum_bbp_init(struct rum_softc *);
168 static void rum_init(void *);
169 static void rum_stop(struct rum_softc *);
170 static int rum_load_microcode(struct rum_softc *, const uint8_t *,
172 static int rum_prepare_beacon(struct rum_softc *);
174 static void rum_stats_timeout(void *);
175 static void rum_stats_update(usbd_xfer_handle, usbd_private_handle,
177 static void rum_stats(struct ieee80211com *,
178 struct ieee80211_node *,
179 struct ieee80211_ratectl_stats *);
180 static void rum_ratectl_change(struct ieee80211com *ic, u_int,
182 static int rum_get_rssi(struct rum_softc *, uint8_t);
185 * Supported rates for 802.11a/b/g modes (in 500Kbps unit).
187 static const struct ieee80211_rateset rum_rateset_11a =
188 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } };
190 static const struct ieee80211_rateset rum_rateset_11b =
191 { 4, { 2, 4, 11, 22 } };
193 static const struct ieee80211_rateset rum_rateset_11g =
194 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
196 static const struct {
203 static const struct {
210 static const struct rfprog {
212 uint32_t r1, r2, r3, r4;
219 USB_DECLARE_DRIVER(rum);
220 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, usbd_driver_load, 0);
223 rum_match(device_t self)
225 struct usb_attach_arg *uaa = device_get_ivars(self);
227 if (uaa->iface != NULL)
230 return (usb_lookup(rum_devs, uaa->vendor, uaa->product) != NULL) ?
231 UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
235 rum_attach(device_t self)
237 struct rum_softc *sc = device_get_softc(self);
238 struct usb_attach_arg *uaa = device_get_ivars(self);
239 struct ieee80211com *ic = &sc->sc_ic;
240 struct ifnet *ifp = &ic->ic_if;
241 usb_interface_descriptor_t *id;
242 usb_endpoint_descriptor_t *ed;
248 sc->sc_udev = uaa->device;
250 usbd_devinfo(uaa->device, 0, devinfo);
252 device_set_desc_copy(self, devinfo);
254 if (usbd_set_config_no(sc->sc_udev, RT2573_CONFIG_NO, 0) != 0) {
255 kprintf("%s: could not set configuration no\n",
256 device_get_nameunit(sc->sc_dev));
260 /* get the first interface handle */
261 error = usbd_device2interface_handle(sc->sc_udev, RT2573_IFACE_INDEX,
264 kprintf("%s: could not get interface handle\n",
265 device_get_nameunit(sc->sc_dev));
272 id = usbd_get_interface_descriptor(sc->sc_iface);
274 sc->sc_rx_no = sc->sc_tx_no = -1;
275 for (i = 0; i < id->bNumEndpoints; i++) {
276 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
278 kprintf("%s: no endpoint descriptor for iface %d\n",
279 device_get_nameunit(sc->sc_dev), i);
283 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
284 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
285 sc->sc_rx_no = ed->bEndpointAddress;
286 else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
287 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
288 sc->sc_tx_no = ed->bEndpointAddress;
290 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
291 kprintf("%s: missing endpoint\n", device_get_nameunit(sc->sc_dev));
295 usb_init_task(&sc->sc_task, rum_task, sc);
297 callout_init(&sc->scan_ch);
298 callout_init(&sc->stats_ch);
300 /* retrieve RT2573 rev. no */
301 for (ntries = 0; ntries < 1000; ntries++) {
302 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
306 if (ntries == 1000) {
307 kprintf("%s: timeout waiting for chip to settle\n",
308 device_get_nameunit(sc->sc_dev));
312 /* retrieve MAC address and various other things from EEPROM */
315 kprintf("%s: MAC/BBP RT%04x (rev 0x%05x), RF %s, address %6D\n",
316 device_get_nameunit(sc->sc_dev), sc->macbbp_rev, tmp,
317 rum_get_rf(sc->rf_rev), ic->ic_myaddr, ":");
319 error = rum_load_microcode(sc, rt2573, sizeof(rt2573));
321 device_printf(self, "can't load microcode\n");
325 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
326 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
327 ic->ic_state = IEEE80211_S_INIT;
329 /* set device capabilities */
331 IEEE80211_C_IBSS | /* IBSS mode supported */
332 IEEE80211_C_MONITOR | /* monitor mode supported */
333 IEEE80211_C_HOSTAP | /* HostAp mode supported */
334 IEEE80211_C_TXPMGT | /* tx power management */
335 IEEE80211_C_SHPREAMBLE | /* short preamble supported */
336 IEEE80211_C_SHSLOT | /* short slot time supported */
337 IEEE80211_C_WPA; /* WPA 1+2 */
339 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
340 /* set supported .11a rates */
341 ic->ic_sup_rates[IEEE80211_MODE_11A] = rum_rateset_11a;
343 /* set supported .11a channels */
344 for (i = 34; i <= 46; i += 4) {
345 ic->ic_channels[i].ic_freq =
346 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
347 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
349 for (i = 36; i <= 64; i += 4) {
350 ic->ic_channels[i].ic_freq =
351 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
352 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
354 for (i = 100; i <= 140; i += 4) {
355 ic->ic_channels[i].ic_freq =
356 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
357 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
359 for (i = 149; i <= 165; i += 4) {
360 ic->ic_channels[i].ic_freq =
361 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
362 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
366 /* set supported .11b and .11g rates */
367 ic->ic_sup_rates[IEEE80211_MODE_11B] = rum_rateset_11b;
368 ic->ic_sup_rates[IEEE80211_MODE_11G] = rum_rateset_11g;
370 /* set supported .11b and .11g channels (1 through 14) */
371 for (i = 1; i <= 14; i++) {
372 ic->ic_channels[i].ic_freq =
373 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
374 ic->ic_channels[i].ic_flags =
375 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
376 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
379 sc->sc_sifs = IEEE80211_DUR_SIFS; /* Default SIFS */
381 if_initname(ifp, device_get_name(self), device_get_unit(self));
383 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
384 ifp->if_init = rum_init;
385 ifp->if_ioctl = rum_ioctl;
386 ifp->if_start = rum_start;
387 ifp->if_watchdog = rum_watchdog;
388 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
389 ifq_set_ready(&ifp->if_snd);
391 ic->ic_ratectl.rc_st_ratectl_cap = IEEE80211_RATECTL_CAP_ONOE;
392 ic->ic_ratectl.rc_st_ratectl = IEEE80211_RATECTL_ONOE;
393 ic->ic_ratectl.rc_st_valid_stats =
394 IEEE80211_RATECTL_STATS_PKT_NORETRY |
395 IEEE80211_RATECTL_STATS_PKT_OK |
396 IEEE80211_RATECTL_STATS_PKT_ERR |
397 IEEE80211_RATECTL_STATS_RETRIES;
398 ic->ic_ratectl.rc_st_stats = rum_stats;
399 ic->ic_ratectl.rc_st_change = rum_ratectl_change;
401 ieee80211_ifattach(ic);
403 /* Enable software beacon missing handling. */
404 ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
406 /* override state transition machine */
407 sc->sc_newstate = ic->ic_newstate;
408 ic->ic_newstate = rum_newstate;
409 ieee80211_media_init(ic, rum_media_change, ieee80211_media_status);
411 bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
412 sizeof(struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN,
415 sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
416 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
417 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT);
419 sc->sc_txtap_len = sizeof sc->sc_txtapu;
420 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
421 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT);
424 ieee80211_announce(ic);
430 rum_detach(device_t self)
432 struct rum_softc *sc = device_get_softc(self);
433 struct ifnet *ifp = &sc->sc_ic.ic_if;
440 callout_stop(&sc->scan_ch);
441 callout_stop(&sc->stats_ch);
443 lwkt_serialize_enter(ifp->if_serializer);
445 lwkt_serialize_exit(ifp->if_serializer);
447 usb_rem_task(sc->sc_udev, &sc->sc_task);
450 ieee80211_ifdetach(&sc->sc_ic); /* free all nodes */
454 KKASSERT(sc->stats_xfer == NULL);
455 KKASSERT(sc->sc_rx_pipeh == NULL);
456 KKASSERT(sc->sc_tx_pipeh == NULL);
460 * Make sure TX/RX list is empty
462 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) {
463 struct rum_tx_data *data = &sc->tx_data[i];
465 KKASSERT(data->xfer == NULL);
466 KKASSERT(data->ni == NULL);
467 KKASSERT(data->m == NULL);
469 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
470 struct rum_rx_data *data = &sc->rx_data[i];
472 KKASSERT(data->xfer == NULL);
473 KKASSERT(data->m == NULL);
480 rum_alloc_tx_list(struct rum_softc *sc)
485 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) {
486 struct rum_tx_data *data = &sc->tx_data[i];
490 data->xfer = usbd_alloc_xfer(sc->sc_udev);
491 if (data->xfer == NULL) {
492 kprintf("%s: could not allocate tx xfer\n",
493 device_get_nameunit(sc->sc_dev));
497 data->buf = usbd_alloc_buffer(data->xfer,
498 RT2573_TX_DESC_SIZE + IEEE80211_MAX_LEN);
499 if (data->buf == NULL) {
500 kprintf("%s: could not allocate tx buffer\n",
501 device_get_nameunit(sc->sc_dev));
505 /* clean Tx descriptor */
506 bzero(data->buf, RT2573_TX_DESC_SIZE);
512 rum_free_tx_list(struct rum_softc *sc)
516 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) {
517 struct rum_tx_data *data = &sc->tx_data[i];
519 if (data->xfer != NULL) {
520 usbd_free_xfer(data->xfer);
523 if (data->ni != NULL) {
524 ieee80211_free_node(data->ni);
527 if (data->m != NULL) {
536 rum_alloc_rx_list(struct rum_softc *sc)
540 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
541 struct rum_rx_data *data = &sc->rx_data[i];
545 data->xfer = usbd_alloc_xfer(sc->sc_udev);
546 if (data->xfer == NULL) {
547 kprintf("%s: could not allocate rx xfer\n",
548 device_get_nameunit(sc->sc_dev));
552 if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
553 kprintf("%s: could not allocate rx buffer\n",
554 device_get_nameunit(sc->sc_dev));
558 data->m = m_getcl(MB_WAIT, MT_DATA, M_PKTHDR);
560 data->buf = mtod(data->m, uint8_t *);
561 bzero(data->buf, sizeof(struct rum_rx_desc));
567 rum_free_rx_list(struct rum_softc *sc)
571 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
572 struct rum_rx_data *data = &sc->rx_data[i];
574 if (data->xfer != NULL) {
575 usbd_free_xfer(data->xfer);
578 if (data->m != NULL) {
586 rum_media_change(struct ifnet *ifp)
590 error = ieee80211_media_change(ifp);
591 if (error != ENETRESET)
594 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
595 rum_init(ifp->if_softc);
601 * This function is called periodically (every 200ms) during scanning to
602 * switch from one channel to another.
605 rum_next_scan(void *arg)
607 struct rum_softc *sc = arg;
608 struct ieee80211com *ic = &sc->sc_ic;
609 struct ifnet *ifp = &ic->ic_if;
616 if (ic->ic_state == IEEE80211_S_SCAN) {
617 lwkt_serialize_enter(ifp->if_serializer);
618 ieee80211_next_scan(ic);
619 lwkt_serialize_exit(ifp->if_serializer);
628 struct rum_softc *sc = xarg;
629 struct ieee80211com *ic = &sc->sc_ic;
630 struct ifnet *ifp = &ic->ic_if;
631 enum ieee80211_state nstate;
632 struct ieee80211_node *ni;
640 nstate = sc->sc_state;
643 KASSERT(nstate != IEEE80211_S_INIT,
644 ("->INIT state transition should not be defered\n"));
645 rum_set_chan(sc, ic->ic_curchan);
648 case IEEE80211_S_RUN:
651 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
654 rum_set_txpreamble(sc);
655 rum_set_basicrates(sc);
656 rum_set_bssid(sc, ni->ni_bssid);
659 if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
660 ic->ic_opmode == IEEE80211_M_IBSS)
661 rum_prepare_beacon(sc);
663 if (ic->ic_opmode != IEEE80211_M_MONITOR)
664 rum_enable_tsf_sync(sc);
666 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
667 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
668 callout_reset(&sc->stats_ch, 4 * hz / 5, rum_stats_timeout, sc);
671 case IEEE80211_S_SCAN:
672 callout_reset(&sc->scan_ch, hz / 5, rum_next_scan, sc);
679 lwkt_serialize_enter(ifp->if_serializer);
680 ieee80211_ratectl_newstate(ic, nstate);
681 sc->sc_newstate(ic, nstate, arg);
682 lwkt_serialize_exit(ifp->if_serializer);
688 rum_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
690 struct rum_softc *sc = ic->ic_if.if_softc;
691 struct ifnet *ifp = &ic->ic_if;
695 ASSERT_SERIALIZED(ifp->if_serializer);
697 callout_stop(&sc->scan_ch);
698 callout_stop(&sc->stats_ch);
700 /* do it in a process context */
701 sc->sc_state = nstate;
704 lwkt_serialize_exit(ifp->if_serializer);
705 usb_rem_task(sc->sc_udev, &sc->sc_task);
707 if (nstate == IEEE80211_S_INIT) {
708 lwkt_serialize_enter(ifp->if_serializer);
709 ieee80211_ratectl_newstate(ic, nstate);
710 sc->sc_newstate(ic, nstate, arg);
712 usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER);
713 lwkt_serialize_enter(ifp->if_serializer);
720 /* quickly determine if a given rate is CCK or OFDM */
721 #define RUM_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
723 #define RUM_ACK_SIZE (sizeof(struct ieee80211_frame_ack) + IEEE80211_FCS_LEN)
726 rum_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
728 struct rum_tx_data *data = priv;
729 struct rum_softc *sc = data->sc;
730 struct ieee80211com *ic = &sc->sc_ic;
731 struct ifnet *ifp = &ic->ic_if;
732 struct ieee80211_node *ni;
739 if (status != USBD_NORMAL_COMPLETION) {
740 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
745 kprintf("%s: could not transmit buffer: %s\n",
746 device_get_nameunit(sc->sc_dev), usbd_errstr(status));
748 if (status == USBD_STALLED)
749 usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh);
761 bzero(data->buf, sizeof(struct rum_tx_data));
763 ifp->if_opackets++; /* XXX may fail too */
765 DPRINTFN(10, ("tx done\n"));
768 ifp->if_flags &= ~IFF_OACTIVE;
770 lwkt_serialize_enter(ifp->if_serializer);
771 ieee80211_free_node(ni);
773 lwkt_serialize_exit(ifp->if_serializer);
779 rum_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
781 struct rum_rx_data *data = priv;
782 struct rum_softc *sc = data->sc;
783 struct ieee80211com *ic = &sc->sc_ic;
784 struct ifnet *ifp = &ic->ic_if;
785 struct rum_rx_desc *desc;
786 struct ieee80211_frame_min *wh;
787 struct ieee80211_node *ni;
788 struct mbuf *mnew, *m;
796 if (status != USBD_NORMAL_COMPLETION) {
797 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
802 if (status == USBD_STALLED)
803 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
807 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
809 if (len < RT2573_RX_DESC_SIZE + sizeof(struct ieee80211_frame_min)) {
810 DPRINTF(("%s: xfer too short %d\n", device_get_nameunit(sc->sc_dev),
816 desc = (struct rum_rx_desc *)data->buf;
818 if (le32toh(desc->flags) & RT2573_RX_CRC_ERROR) {
820 * This should not happen since we did not request to receive
821 * those frames when we filled RT2573_TXRX_CSR0.
823 DPRINTFN(5, ("CRC error\n"));
828 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
830 kprintf("%s: could not allocate rx mbuf\n",
831 device_get_nameunit(sc->sc_dev));
840 lwkt_serialize_enter(ifp->if_serializer);
843 m->m_pkthdr.rcvif = ifp;
844 m->m_data = (caddr_t)(desc + 1);
845 m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff;
847 rssi = rum_get_rssi(sc, desc->rssi);
849 wh = mtod(m, struct ieee80211_frame_min *);
850 ni = ieee80211_find_rxnode(ic, wh);
852 /* Error happened during RSSI conversion. */
856 if (sc->sc_drvbpf != NULL) {
857 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
860 tap->wr_rate = rum_rxrate(desc);
861 tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
862 tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
863 tap->wr_antenna = sc->rx_ant;
864 tap->wr_antsignal = rssi;
866 bpf_ptap(sc->sc_drvbpf, m, tap, sc->sc_rxtap_len);
869 /* send the frame to the 802.11 layer */
870 ieee80211_input(ic, m, ni, rssi, 0);
872 /* node is no longer needed */
873 ieee80211_free_node(ni);
875 if ((ifp->if_flags & IFF_OACTIVE) == 0)
878 lwkt_serialize_exit(ifp->if_serializer);
881 data->buf = mtod(data->m, uint8_t *);
883 DPRINTFN(15, ("rx done\n"));
885 skip: /* setup a new transfer */
886 bzero(data->buf, sizeof(struct rum_rx_desc));
887 usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES,
888 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof);
895 * This function is only used by the Rx radiotap code. It returns the rate at
896 * which a given frame was received.
899 rum_rxrate(struct rum_rx_desc *desc)
901 if (le32toh(desc->flags) & RT2573_RX_OFDM) {
902 /* reverse function of rum_plcp_signal */
903 switch (desc->rate) {
911 case 0xc: return 108;
914 if (desc->rate == 10)
916 if (desc->rate == 20)
918 if (desc->rate == 55)
920 if (desc->rate == 110)
923 return 2; /* should not get there */
927 rum_plcp_signal(int rate)
930 /* CCK rates (returned values are device-dependent) */
936 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
944 case 108: return 0xc;
946 /* unsupported rates (should not get there) */
947 default: return 0xff;
952 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
953 uint32_t flags, uint16_t xflags, int len, int rate)
955 struct ieee80211com *ic = &sc->sc_ic;
956 uint16_t plcp_length;
959 desc->flags = htole32(flags);
960 desc->flags |= htole32(len << 16);
962 desc->xflags = htole16(xflags);
968 RT2573_LOGCWMAX(10));
970 /* setup PLCP fields */
971 desc->plcp_signal = rum_plcp_signal(rate);
972 desc->plcp_service = 4;
974 len += IEEE80211_CRC_LEN;
975 if (RUM_RATE_IS_OFDM(rate)) {
976 desc->flags |= htole32(RT2573_TX_OFDM);
978 plcp_length = len & 0xfff;
979 desc->plcp_length_hi = plcp_length >> 6;
980 desc->plcp_length_lo = plcp_length & 0x3f;
982 plcp_length = (16 * len + rate - 1) / rate;
984 remainder = (16 * len) % 22;
985 if (remainder != 0 && remainder < 7)
986 desc->plcp_service |= RT2573_PLCP_LENGEXT;
988 desc->plcp_length_hi = plcp_length >> 8;
989 desc->plcp_length_lo = plcp_length & 0xff;
991 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
992 desc->plcp_signal |= 0x08;
994 desc->flags |= htole32(RT2573_TX_VALID);
997 #define RUM_TX_TIMEOUT 5000
1000 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1002 struct ieee80211com *ic = &sc->sc_ic;
1003 struct ifnet *ifp = &ic->ic_if;
1004 struct rum_tx_desc *desc;
1005 struct rum_tx_data *data;
1006 struct ieee80211_frame *wh;
1010 int xferlen, rate, rateidx;
1012 wh = mtod(m0, struct ieee80211_frame *);
1014 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1015 if (ieee80211_crypto_encap(ic, ni, m0) == NULL) {
1020 /* packet header may have moved, reset our local pointer */
1021 wh = mtod(m0, struct ieee80211_frame *);
1025 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1026 IEEE80211_FC0_TYPE_MGT) {
1027 /* mgmt frames are sent at the lowest available bit-rate */
1030 ieee80211_ratectl_findrate(ni, m0->m_pkthdr.len, &rateidx, 1);
1032 rate = IEEE80211_RS_RATE(&ni->ni_rates, rateidx);
1034 data = &sc->tx_data[0];
1035 desc = (struct rum_tx_desc *)data->buf;
1040 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1041 flags |= RT2573_TX_ACK;
1043 dur = ieee80211_txtime(ni, RUM_ACK_SIZE,
1044 ieee80211_ack_rate(ni, rate), ic->ic_flags) +
1046 *(uint16_t *)wh->i_dur = htole16(dur);
1048 /* tell hardware to set timestamp in probe responses */
1050 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1051 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1052 flags |= RT2573_TX_TIMESTAMP;
1055 if (sc->sc_drvbpf != NULL) {
1056 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1059 tap->wt_rate = rate;
1060 tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
1061 tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
1062 tap->wt_antenna = sc->tx_ant;
1064 bpf_ptap(sc->sc_drvbpf, m0, tap, sc->sc_txtap_len);
1067 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE);
1068 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate);
1070 /* Align end on a 4-bytes boundary */
1071 xferlen = roundup(RT2573_TX_DESC_SIZE + m0->m_pkthdr.len, 4);
1074 * No space left in the last URB to store the extra 4 bytes, force
1075 * sending of another URB.
1077 if ((xferlen % 64) == 0)
1080 DPRINTFN(10, ("sending frame len=%u rate=%u xfer len=%u\n",
1081 m0->m_pkthdr.len + RT2573_TX_DESC_SIZE, rate, xferlen));
1083 lwkt_serialize_exit(ifp->if_serializer);
1085 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen,
1086 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof);
1088 error = usbd_transfer(data->xfer);
1089 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
1098 lwkt_serialize_enter(ifp->if_serializer);
1103 rum_start(struct ifnet *ifp)
1105 struct rum_softc *sc = ifp->if_softc;
1106 struct ieee80211com *ic = &sc->sc_ic;
1108 ASSERT_SERIALIZED(ifp->if_serializer);
1115 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) {
1121 struct ieee80211_node *ni;
1124 if (!IF_QEMPTY(&ic->ic_mgtq)) {
1125 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) {
1126 ifp->if_flags |= IFF_OACTIVE;
1129 IF_DEQUEUE(&ic->ic_mgtq, m0);
1131 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
1132 m0->m_pkthdr.rcvif = NULL;
1136 if (rum_tx_data(sc, m0, ni) != 0) {
1137 ieee80211_free_node(ni);
1141 struct ether_header *eh;
1143 if (ic->ic_state != IEEE80211_S_RUN)
1146 m0 = ifq_poll(&ifp->if_snd);
1149 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) {
1150 ifp->if_flags |= IFF_OACTIVE;
1153 ifq_dequeue(&ifp->if_snd, m0);
1155 if (m0->m_len < sizeof(struct ether_header)) {
1156 m0 = m_pullup(m0, sizeof(struct ether_header));
1162 eh = mtod(m0, struct ether_header *);
1164 ni = ieee80211_find_txnode(ic, eh->ether_dhost);
1172 m0 = ieee80211_encap(ic, m0, ni);
1174 ieee80211_free_node(ni);
1178 if (ic->ic_rawbpf != NULL)
1179 bpf_mtap(ic->ic_rawbpf, m0);
1181 if (rum_tx_data(sc, m0, ni) != 0) {
1182 ieee80211_free_node(ni);
1188 sc->sc_tx_timer = 5;
1196 rum_watchdog(struct ifnet *ifp)
1198 struct rum_softc *sc = ifp->if_softc;
1200 ASSERT_SERIALIZED(ifp->if_serializer);
1206 if (sc->sc_tx_timer > 0) {
1207 if (--sc->sc_tx_timer == 0) {
1208 kprintf("%s: device timeout\n", device_get_nameunit(sc->sc_dev));
1209 /*rum_init(sc); XXX needs a process context! */
1218 ieee80211_watchdog(&sc->sc_ic);
1224 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1226 struct rum_softc *sc = ifp->if_softc;
1227 struct ieee80211com *ic = &sc->sc_ic;
1230 ASSERT_SERIALIZED(ifp->if_serializer);
1236 if (ifp->if_flags & IFF_UP) {
1237 if (ifp->if_flags & IFF_RUNNING) {
1238 lwkt_serialize_exit(ifp->if_serializer);
1239 rum_update_promisc(sc);
1240 lwkt_serialize_enter(ifp->if_serializer);
1245 if (ifp->if_flags & IFF_RUNNING)
1250 error = ieee80211_ioctl(ic, cmd, data, cr);
1254 if (error == ENETRESET) {
1255 struct ieee80211req *ireq = (struct ieee80211req *)data;
1257 if (cmd == SIOCS80211 &&
1258 ireq->i_type == IEEE80211_IOC_CHANNEL &&
1259 ic->ic_opmode == IEEE80211_M_MONITOR) {
1261 * This allows for fast channel switching in monitor
1262 * mode (used by kismet). In IBSS mode, we must
1263 * explicitly reset the interface to generate a new
1266 lwkt_serialize_exit(ifp->if_serializer);
1267 rum_set_chan(sc, ic->ic_ibss_chan);
1268 lwkt_serialize_enter(ifp->if_serializer);
1269 } else if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
1270 (IFF_UP | IFF_RUNNING)) {
1281 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1283 usb_device_request_t req;
1286 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1287 req.bRequest = RT2573_READ_EEPROM;
1288 USETW(req.wValue, 0);
1289 USETW(req.wIndex, addr);
1290 USETW(req.wLength, len);
1292 error = usbd_do_request(sc->sc_udev, &req, buf);
1294 kprintf("%s: could not read EEPROM: %s\n",
1295 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1300 rum_read(struct rum_softc *sc, uint16_t reg)
1304 rum_read_multi(sc, reg, &val, sizeof val);
1306 return le32toh(val);
1310 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1312 usb_device_request_t req;
1315 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1316 req.bRequest = RT2573_READ_MULTI_MAC;
1317 USETW(req.wValue, 0);
1318 USETW(req.wIndex, reg);
1319 USETW(req.wLength, len);
1321 error = usbd_do_request(sc->sc_udev, &req, buf);
1323 kprintf("%s: could not multi read MAC register: %s\n",
1324 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1329 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1331 uint32_t tmp = htole32(val);
1333 rum_write_multi(sc, reg, &tmp, sizeof tmp);
1337 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1339 usb_device_request_t req;
1342 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1343 req.bRequest = RT2573_WRITE_MULTI_MAC;
1344 USETW(req.wValue, 0);
1345 USETW(req.wIndex, reg);
1346 USETW(req.wLength, len);
1348 error = usbd_do_request(sc->sc_udev, &req, buf);
1350 kprintf("%s: could not multi write MAC register: %s\n",
1351 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1356 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1361 for (ntries = 0; ntries < 5; ntries++) {
1362 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1366 kprintf("%s: could not write to BBP\n", device_get_nameunit(sc->sc_dev));
1370 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1371 rum_write(sc, RT2573_PHY_CSR3, tmp);
1375 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1380 for (ntries = 0; ntries < 5; ntries++) {
1381 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1385 kprintf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
1389 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1390 rum_write(sc, RT2573_PHY_CSR3, val);
1392 for (ntries = 0; ntries < 100; ntries++) {
1393 val = rum_read(sc, RT2573_PHY_CSR3);
1394 if (!(val & RT2573_BBP_BUSY))
1399 kprintf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
1404 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1409 for (ntries = 0; ntries < 5; ntries++) {
1410 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1414 kprintf("%s: could not write to RF\n", device_get_nameunit(sc->sc_dev));
1418 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1420 rum_write(sc, RT2573_PHY_CSR4, tmp);
1422 /* remember last written value in sc */
1423 sc->rf_regs[reg] = val;
1425 DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff));
1429 rum_select_antenna(struct rum_softc *sc)
1431 uint8_t bbp4, bbp77;
1434 bbp4 = rum_bbp_read(sc, 4);
1435 bbp77 = rum_bbp_read(sc, 77);
1439 /* make sure Rx is disabled before switching antenna */
1440 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1441 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1443 rum_bbp_write(sc, 4, bbp4);
1444 rum_bbp_write(sc, 77, bbp77);
1446 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1450 * Enable multi-rate retries for frames sent at OFDM rates.
1451 * In 802.11b/g mode, allow fallback to CCK rates.
1454 rum_enable_mrr(struct rum_softc *sc)
1456 struct ieee80211com *ic = &sc->sc_ic;
1459 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1461 tmp &= ~RT2573_MRR_CCK_FALLBACK;
1462 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
1463 tmp |= RT2573_MRR_CCK_FALLBACK;
1464 tmp |= RT2573_MRR_ENABLED;
1466 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1470 rum_set_txpreamble(struct rum_softc *sc)
1474 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1476 tmp &= ~RT2573_SHORT_PREAMBLE;
1477 if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
1478 tmp |= RT2573_SHORT_PREAMBLE;
1480 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1484 rum_set_basicrates(struct rum_softc *sc)
1486 struct ieee80211com *ic = &sc->sc_ic;
1488 /* update basic rate set */
1489 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1490 /* 11b basic rates: 1, 2Mbps */
1491 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
1492 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) {
1493 /* 11a basic rates: 6, 12, 24Mbps */
1494 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
1496 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
1497 rum_write(sc, RT2573_TXRX_CSR5, 0x15f);
1502 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
1506 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
1508 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1511 /* update all BBP registers that depend on the band */
1512 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1513 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
1514 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1515 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1516 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
1518 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1519 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1520 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1524 rum_bbp_write(sc, 17, bbp17);
1525 rum_bbp_write(sc, 96, bbp96);
1526 rum_bbp_write(sc, 104, bbp104);
1528 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1529 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1530 rum_bbp_write(sc, 75, 0x80);
1531 rum_bbp_write(sc, 86, 0x80);
1532 rum_bbp_write(sc, 88, 0x80);
1535 rum_bbp_write(sc, 35, bbp35);
1536 rum_bbp_write(sc, 97, bbp97);
1537 rum_bbp_write(sc, 98, bbp98);
1539 tmp = rum_read(sc, RT2573_PHY_CSR0);
1540 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
1541 if (IEEE80211_IS_CHAN_2GHZ(c))
1542 tmp |= RT2573_PA_PE_2GHZ;
1544 tmp |= RT2573_PA_PE_5GHZ;
1545 rum_write(sc, RT2573_PHY_CSR0, tmp);
1549 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
1551 struct ieee80211com *ic = &sc->sc_ic;
1552 const struct rfprog *rfprog;
1553 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
1557 chan = ieee80211_chan2ieee(ic, c);
1558 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1561 /* select the appropriate RF settings based on what EEPROM says */
1562 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
1563 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
1565 /* find the settings for this channel (we know it exists) */
1566 for (i = 0; rfprog[i].chan != chan; i++)
1569 power = sc->txpow[i];
1573 } else if (power > 31) {
1574 bbp94 += power - 31;
1579 * If we are switching from the 2GHz band to the 5GHz band or
1580 * vice-versa, BBP registers need to be reprogrammed.
1582 if (c->ic_flags != sc->sc_curchan->ic_flags) {
1583 rum_select_band(sc, c);
1584 rum_select_antenna(sc);
1588 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1589 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1590 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1591 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1593 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1594 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1595 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
1596 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1598 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1599 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1600 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1601 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1605 /* enable smart mode for MIMO-capable RFs */
1606 bbp3 = rum_bbp_read(sc, 3);
1608 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
1609 bbp3 &= ~RT2573_SMART_MODE;
1611 bbp3 |= RT2573_SMART_MODE;
1613 rum_bbp_write(sc, 3, bbp3);
1615 if (bbp94 != RT2573_BBPR94_DEFAULT)
1616 rum_bbp_write(sc, 94, bbp94);
1618 sc->sc_sifs = IEEE80211_IS_CHAN_5GHZ(c) ? IEEE80211_DUR_OFDM_SIFS
1619 : IEEE80211_DUR_SIFS;
1623 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
1624 * and HostAP operating modes.
1627 rum_enable_tsf_sync(struct rum_softc *sc)
1629 struct ieee80211com *ic = &sc->sc_ic;
1632 if (ic->ic_opmode != IEEE80211_M_STA) {
1634 * Change default 16ms TBTT adjustment to 8ms.
1635 * Must be done before enabling beacon generation.
1637 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
1640 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
1642 /* set beacon interval (in 1/16ms unit) */
1643 tmp |= ic->ic_bss->ni_intval * 16;
1645 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
1646 if (ic->ic_opmode == IEEE80211_M_STA)
1647 tmp |= RT2573_TSF_MODE(1);
1649 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
1651 rum_write(sc, RT2573_TXRX_CSR9, tmp);
1655 rum_update_slot(struct rum_softc *sc)
1657 struct ieee80211com *ic = &sc->sc_ic;
1661 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1663 tmp = rum_read(sc, RT2573_MAC_CSR9);
1664 tmp = (tmp & ~0xff) | slottime;
1665 rum_write(sc, RT2573_MAC_CSR9, tmp);
1667 DPRINTF(("setting slot time to %uus\n", slottime));
1671 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
1675 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
1676 rum_write(sc, RT2573_MAC_CSR4, tmp);
1678 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
1679 rum_write(sc, RT2573_MAC_CSR5, tmp);
1683 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
1687 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
1688 rum_write(sc, RT2573_MAC_CSR2, tmp);
1690 tmp = addr[4] | addr[5] << 8 | 0xff << 16;
1691 rum_write(sc, RT2573_MAC_CSR3, tmp);
1695 rum_update_promisc(struct rum_softc *sc)
1697 struct ifnet *ifp = &sc->sc_ic.ic_if;
1700 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1702 tmp &= ~RT2573_DROP_NOT_TO_ME;
1703 if (!(ifp->if_flags & IFF_PROMISC))
1704 tmp |= RT2573_DROP_NOT_TO_ME;
1706 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1708 DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1709 "entering" : "leaving"));
1716 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
1717 case RT2573_RF_2528: return "RT2528";
1718 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
1719 case RT2573_RF_5226: return "RT5226";
1720 default: return "unknown";
1725 rum_read_eeprom(struct rum_softc *sc)
1727 struct ieee80211com *ic = &sc->sc_ic;
1733 /* read MAC/BBP type */
1734 rum_eeprom_read(sc, RT2573_EEPROM_MACBBP, &val, 2);
1735 sc->macbbp_rev = le16toh(val);
1737 /* read MAC address */
1738 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6);
1740 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
1742 sc->rf_rev = (val >> 11) & 0x1f;
1743 sc->hw_radio = (val >> 10) & 0x1;
1744 sc->rx_ant = (val >> 4) & 0x3;
1745 sc->tx_ant = (val >> 2) & 0x3;
1746 sc->nb_ant = val & 0x3;
1748 DPRINTF(("RF revision=%d\n", sc->rf_rev));
1750 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
1752 sc->ext_5ghz_lna = (val >> 6) & 0x1;
1753 sc->ext_2ghz_lna = (val >> 4) & 0x1;
1755 DPRINTF(("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
1756 sc->ext_2ghz_lna, sc->ext_5ghz_lna));
1758 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
1760 if ((val & 0xff) != 0xff)
1761 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
1763 /* Only [-10, 10] is valid */
1764 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
1765 sc->rssi_2ghz_corr = 0;
1767 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
1769 if ((val & 0xff) != 0xff)
1770 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
1772 /* Only [-10, 10] is valid */
1773 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
1774 sc->rssi_5ghz_corr = 0;
1776 if (sc->ext_2ghz_lna)
1777 sc->rssi_2ghz_corr -= 14;
1778 if (sc->ext_5ghz_lna)
1779 sc->rssi_5ghz_corr -= 14;
1781 DPRINTF(("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
1782 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr));
1784 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
1786 if ((val & 0xff) != 0xff)
1787 sc->rffreq = val & 0xff;
1789 DPRINTF(("RF freq=%d\n", sc->rffreq));
1791 /* read Tx power for all a/b/g channels */
1792 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
1793 /* XXX default Tx power for 802.11a channels */
1794 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
1796 for (i = 0; i < 14; i++)
1797 DPRINTF(("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]));
1800 /* read default values for BBP registers */
1801 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1803 for (i = 0; i < 14; i++) {
1804 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1806 DPRINTF(("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
1807 sc->bbp_prom[i].val));
1813 rum_bbp_init(struct rum_softc *sc)
1815 #define N(a) (sizeof (a) / sizeof ((a)[0]))
1819 /* wait for BBP to be ready */
1820 for (ntries = 0; ntries < 100; ntries++) {
1821 val = rum_bbp_read(sc, 0);
1822 if (val != 0 && val != 0xff)
1826 if (ntries == 100) {
1827 kprintf("%s: timeout waiting for BBP\n",
1828 device_get_nameunit(sc->sc_dev));
1832 /* initialize BBP registers to default values */
1833 for (i = 0; i < N(rum_def_bbp); i++)
1834 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
1836 /* write vendor-specific BBP values (from EEPROM) */
1837 for (i = 0; i < 16; i++) {
1838 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1840 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1850 #define N(a) (sizeof(a) / sizeof((a)[0]))
1851 struct rum_softc *sc = xsc;
1852 struct ieee80211com *ic = &sc->sc_ic;
1853 struct ifnet *ifp = &ic->ic_if;
1854 struct rum_rx_data *data;
1856 usbd_status usb_err;
1857 int i, ntries, error;
1859 ASSERT_SERIALIZED(ifp->if_serializer);
1866 lwkt_serialize_exit(ifp->if_serializer);
1868 /* initialize MAC registers to default values */
1869 for (i = 0; i < N(rum_def_mac); i++)
1870 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
1872 /* set host ready */
1873 rum_write(sc, RT2573_MAC_CSR1, 3);
1874 rum_write(sc, RT2573_MAC_CSR1, 0);
1876 /* wait for BBP/RF to wakeup */
1877 for (ntries = 0; ntries < 1000; ntries++) {
1878 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
1880 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
1883 if (ntries == 1000) {
1884 kprintf("%s: timeout waiting for BBP/RF to wakeup\n",
1885 device_get_nameunit(sc->sc_dev));
1890 error = rum_bbp_init(sc);
1894 /* select default channel */
1895 sc->sc_curchan = ic->ic_curchan = ic->ic_ibss_chan;
1897 rum_select_band(sc, sc->sc_curchan);
1898 rum_select_antenna(sc);
1899 rum_set_chan(sc, sc->sc_curchan);
1901 /* clear STA registers */
1902 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
1904 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
1905 rum_set_macaddr(sc, ic->ic_myaddr);
1907 /* initialize ASIC */
1908 rum_write(sc, RT2573_MAC_CSR1, 4);
1911 * Allocate xfer for AMRR statistics requests.
1913 sc->stats_xfer = usbd_alloc_xfer(sc->sc_udev);
1914 if (sc->stats_xfer == NULL) {
1915 kprintf("%s: could not allocate AMRR xfer\n",
1916 device_get_nameunit(sc->sc_dev));
1922 * Open Tx and Rx USB bulk pipes.
1924 usb_err = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE,
1926 if (usb_err != USBD_NORMAL_COMPLETION) {
1927 kprintf("%s: could not open Tx pipe: %s\n",
1928 device_get_nameunit(sc->sc_dev), usbd_errstr(usb_err));
1933 usb_err = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
1935 if (usb_err != USBD_NORMAL_COMPLETION) {
1936 kprintf("%s: could not open Rx pipe: %s\n",
1937 device_get_nameunit(sc->sc_dev), usbd_errstr(usb_err));
1943 * Allocate Tx and Rx xfer queues.
1945 error = rum_alloc_tx_list(sc);
1947 kprintf("%s: could not allocate Tx list\n",
1948 device_get_nameunit(sc->sc_dev));
1952 error = rum_alloc_rx_list(sc);
1954 kprintf("%s: could not allocate Rx list\n",
1955 device_get_nameunit(sc->sc_dev));
1960 * Start up the receive pipe.
1962 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
1963 data = &sc->rx_data[i];
1965 usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf,
1966 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof);
1967 usbd_transfer(data->xfer);
1970 /* update Rx filter */
1971 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
1973 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
1974 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1975 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
1977 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
1978 tmp |= RT2573_DROP_TODS;
1979 if (!(ifp->if_flags & IFF_PROMISC))
1980 tmp |= RT2573_DROP_NOT_TO_ME;
1982 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1984 lwkt_serialize_enter(ifp->if_serializer);
1989 ifp->if_flags &= ~IFF_OACTIVE;
1990 ifp->if_flags |= IFF_RUNNING;
1992 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1993 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
1994 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
1996 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
2005 rum_stop(struct rum_softc *sc)
2007 struct ieee80211com *ic = &sc->sc_ic;
2008 struct ifnet *ifp = &ic->ic_if;
2011 ASSERT_SERIALIZED(ifp->if_serializer);
2015 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
2018 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); /* free all nodes */
2020 sc->sc_tx_timer = 0;
2023 lwkt_serialize_exit(ifp->if_serializer);
2026 tmp = rum_read(sc, RT2573_TXRX_CSR0);
2027 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2030 rum_write(sc, RT2573_MAC_CSR1, 3);
2031 rum_write(sc, RT2573_MAC_CSR1, 0);
2033 if (sc->stats_xfer != NULL) {
2034 usbd_free_xfer(sc->stats_xfer);
2035 sc->stats_xfer = NULL;
2038 if (sc->sc_rx_pipeh != NULL) {
2039 usbd_abort_pipe(sc->sc_rx_pipeh);
2040 usbd_close_pipe(sc->sc_rx_pipeh);
2041 sc->sc_rx_pipeh = NULL;
2044 if (sc->sc_tx_pipeh != NULL) {
2045 usbd_abort_pipe(sc->sc_tx_pipeh);
2046 usbd_close_pipe(sc->sc_tx_pipeh);
2047 sc->sc_tx_pipeh = NULL;
2050 lwkt_serialize_enter(ifp->if_serializer);
2052 rum_free_rx_list(sc);
2053 rum_free_tx_list(sc);
2059 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2061 usb_device_request_t req;
2062 uint16_t reg = RT2573_MCU_CODE_BASE;
2065 /* copy firmware image into NIC */
2066 for (; size >= 4; reg += 4, ucode += 4, size -= 4)
2067 rum_write(sc, reg, UGETDW(ucode));
2069 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2070 req.bRequest = RT2573_MCU_CNTL;
2071 USETW(req.wValue, RT2573_MCU_RUN);
2072 USETW(req.wIndex, 0);
2073 USETW(req.wLength, 0);
2075 error = usbd_do_request(sc->sc_udev, &req, NULL);
2077 kprintf("%s: could not run firmware: %s\n",
2078 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
2084 rum_prepare_beacon(struct rum_softc *sc)
2086 struct ieee80211com *ic = &sc->sc_ic;
2087 struct ifnet *ifp = &ic->ic_if;
2088 struct ieee80211_beacon_offsets bo;
2089 struct rum_tx_desc desc;
2093 lwkt_serialize_enter(ifp->if_serializer);
2094 m0 = ieee80211_beacon_alloc(ic, ic->ic_bss, &bo);
2095 lwkt_serialize_exit(ifp->if_serializer);
2098 if_printf(&ic->ic_if, "could not allocate beacon frame\n");
2102 /* send beacons at the lowest available rate */
2103 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan) ? 12 : 2;
2105 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
2106 m0->m_pkthdr.len, rate);
2108 /* copy the first 24 bytes of Tx descriptor into NIC memory */
2109 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2111 /* copy beacon header and payload into NIC memory */
2112 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
2121 rum_stats_timeout(void *arg)
2123 struct rum_softc *sc = arg;
2124 usb_device_request_t req;
2132 * Asynchronously read statistic registers (cleared by read).
2134 req.bmRequestType = UT_READ_VENDOR_DEVICE;
2135 req.bRequest = RT2573_READ_MULTI_MAC;
2136 USETW(req.wValue, 0);
2137 USETW(req.wIndex, RT2573_STA_CSR0);
2138 USETW(req.wLength, sizeof(sc->sta));
2140 usbd_setup_default_xfer(sc->stats_xfer, sc->sc_udev, sc,
2141 USBD_DEFAULT_TIMEOUT, &req,
2142 sc->sta, sizeof(sc->sta), 0,
2144 usbd_transfer(sc->stats_xfer);
2150 rum_stats_update(usbd_xfer_handle xfer, usbd_private_handle priv,
2153 struct rum_softc *sc = (struct rum_softc *)priv;
2154 struct ifnet *ifp = &sc->sc_ic.ic_if;
2155 struct ieee80211_ratectl_stats *stats = &sc->sc_stats;
2157 if (status != USBD_NORMAL_COMPLETION) {
2158 kprintf("%s: could not retrieve Tx statistics - cancelling "
2159 "automatic rate control\n", device_get_nameunit(sc->sc_dev));
2165 /* count TX retry-fail as Tx errors */
2166 ifp->if_oerrors += RUM_TX_PKT_FAIL(sc);
2168 stats->stats_pkt_noretry += RUM_TX_PKT_NO_RETRY(sc);
2169 stats->stats_pkt_ok += RUM_TX_PKT_NO_RETRY(sc) +
2170 RUM_TX_PKT_ONE_RETRY(sc) +
2171 RUM_TX_PKT_MULTI_RETRY(sc);
2172 stats->stats_pkt_err += RUM_TX_PKT_FAIL(sc);
2174 stats->stats_retries += RUM_TX_PKT_ONE_RETRY(sc);
2177 * XXX Estimated average:
2178 * Actual number of retries for each packet should belong to
2179 * [2, RUM_TX_SHORT_RETRY_MAX]
2181 stats->stats_retries += RUM_TX_PKT_MULTI_RETRY(sc) *
2182 ((2 + RUM_TX_SHORT_RETRY_MAX) / 2);
2184 stats->stats_retries += RUM_TX_PKT_MULTI_RETRY(sc);
2186 stats->stats_retries += RUM_TX_PKT_FAIL(sc) * RUM_TX_SHORT_RETRY_MAX;
2188 callout_reset(&sc->stats_ch, 4 * hz / 5, rum_stats_timeout, sc);
2194 rum_stats(struct ieee80211com *ic, struct ieee80211_node *ni __unused,
2195 struct ieee80211_ratectl_stats *stats)
2197 struct ifnet *ifp = &ic->ic_if;
2198 struct rum_softc *sc = ifp->if_softc;
2200 ASSERT_SERIALIZED(ifp->if_serializer);
2202 bcopy(&sc->sc_stats, stats, sizeof(*stats));
2203 bzero(&sc->sc_stats, sizeof(sc->sc_stats));
2207 rum_ratectl_change(struct ieee80211com *ic, u_int orc __unused, u_int nrc)
2209 struct ieee80211_ratectl_state *st = &ic->ic_ratectl;
2210 struct ieee80211_onoe_param *oparam;
2212 if (st->rc_st_param != NULL) {
2213 kfree(st->rc_st_param, M_DEVBUF);
2214 st->rc_st_param = NULL;
2218 case IEEE80211_RATECTL_ONOE:
2219 oparam = kmalloc(sizeof(*oparam), M_DEVBUF, M_INTWAIT);
2221 IEEE80211_ONOE_PARAM_SETUP(oparam);
2222 oparam->onoe_raise = 15;
2224 st->rc_st_param = oparam;
2226 case IEEE80211_RATECTL_NONE:
2227 /* This could only happen during detaching */
2230 panic("unknown rate control algo %u\n", nrc);
2235 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
2239 lna = (raw >> 5) & 0x3;
2246 * NB: Since RSSI is relative to noise floor, -1 is
2247 * adequate for caller to know error happened.
2252 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
2254 if (IEEE80211_IS_CHAN_2GHZ(sc->sc_curchan)) {
2255 rssi += sc->rssi_2ghz_corr;
2264 rssi += sc->rssi_5ghz_corr;
2266 if (!sc->ext_5ghz_lna && lna != 1)