1 /* $OpenBSD: if_rum.c,v 1.40 2006/09/18 16:20:20 damien Exp $ */
4 * Copyright (c) 2005, 2006 Damien Bergamini <damien.bergamini@free.fr>
5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
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 RT2501USB/RT2601USB 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/serialize.h>
33 #include <sys/socket.h>
34 #include <sys/sockio.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 "if_rumreg.h"
53 #include "if_rumvar.h"
54 #include "rum_ucode.h"
61 #define DPRINTF(x) do { if (rum_debug) kprintf x; } while (0)
62 #define DPRINTFN(n, x) do { if (rum_debug >= (n)) kprintf x; } while (0)
66 #define DPRINTFN(n, x)
69 /* various supported device vendors/products */
70 static const struct usb_devno rum_devs[] = {
71 { USB_DEVICE(0x0411, 0x00d8) }, /* Melco WLI-U2-SG54HP */
72 { USB_DEVICE(0x0411, 0x00d9) }, /* Melco WLI-U2-G54HP */
73 { USB_DEVICE(0x050d, 0x705a) }, /* Belkin F5D7050A */
74 { USB_DEVICE(0x050d, 0x905b) }, /* Belkin F5D9050 ver3 */
75 { USB_DEVICE(0x0586, 0x3415) }, /* ZyXEL RT2573 */
76 { USB_DEVICE(0x06f8, 0xe010) }, /* Guillemot HWGUSB2-54-LB */
77 { USB_DEVICE(0x06f8, 0xe020) }, /* Guillemot HWGUSB2-54V2-AP */
78 { USB_DEVICE(0x0769, 0x31f3) }, /* Surecom RT2573 */
79 { USB_DEVICE(0x07b8, 0xb21b) }, /* AboCom HWU54DM */
80 { USB_DEVICE(0x07b8, 0xb21c) }, /* AboCom RT2573 */
81 { USB_DEVICE(0x07b8, 0xb21d) }, /* AboCom RT2573 */
82 { USB_DEVICE(0x07b8, 0xb21e) }, /* AboCom RT2573 */
83 { USB_DEVICE(0x07b8, 0xb21f) }, /* AboCom WUG2700 */
84 { USB_DEVICE(0x07d1, 0x3c03) }, /* D-Link DWL-G122 rev c1 */
85 { USB_DEVICE(0x07d1, 0x3c04) }, /* D-Link WUA-1340 */
86 { USB_DEVICE(0x0b05, 0x1723) }, /* Asus WL-167g */
87 { USB_DEVICE(0x0b05, 0x1724) }, /* Asus WL-167g */
88 { USB_DEVICE(0x0db0, 0x6874) }, /* MSI RT2573 */
89 { USB_DEVICE(0x0db0, 0x6877) }, /* MSI RT2573 */
90 { USB_DEVICE(0x0db0, 0xa861) }, /* MSI RT2573 */
91 { USB_DEVICE(0x0db0, 0xa874) }, /* MSI RT2573 */
92 { USB_DEVICE(0x0df6, 0x90ac) }, /* Sitecom WL-172 */
93 { USB_DEVICE(0x0df6, 0x9712) }, /* Sitecom WL-113 rev 2 */
94 { USB_DEVICE(0x0eb0, 0x9021) }, /* Nova Technology RT2573 */
95 { USB_DEVICE(0x1044, 0x8008) }, /* GIGABYTE GN-WB01GS */
96 { USB_DEVICE(0x1044, 0x800a) }, /* GIGABYTE GN-WI05GS */
97 { USB_DEVICE(0x1371, 0x9022) }, /* (really) C-Net RT2573 */
98 { USB_DEVICE(0x1371, 0x9032) }, /* (really) C-Net CWD854F */
99 { USB_DEVICE(0x13b1, 0x0020) }, /* Cisco-Linksys WUSB54GC */
100 { USB_DEVICE(0x13b1, 0x0023) }, /* Cisco-Linksys WUSB54GR */
101 { USB_DEVICE(0x1472, 0x0009) }, /* Huawei RT2573 */
102 { USB_DEVICE(0x148f, 0x2573) }, /* Ralink RT2573 */
103 { USB_DEVICE(0x148f, 0x2671) }, /* Ralink RT2671 */
104 { USB_DEVICE(0x148f, 0x9021) }, /* Ralink RT2573 */
105 { USB_DEVICE(0x14b2, 0x3c22) }, /* Conceptronic C54RU */
106 { USB_DEVICE(0x15a9, 0x0004) }, /* SparkLan RT2573 */
107 { USB_DEVICE(0x1631, 0xc019) }, /* Good Way Technology RT2573 */
108 { USB_DEVICE(0x1690, 0x0722) }, /* Gigaset RT2573 */
109 { USB_DEVICE(0x1737, 0x0020) }, /* Linksys WUSB54GC */
110 { USB_DEVICE(0x1737, 0x0023) }, /* Linksys WUSB54GR */
111 { USB_DEVICE(0x18c5, 0x0002) }, /* AMIT CG-WLUSB2GO */
112 { USB_DEVICE(0x18e8, 0x6196) }, /* Qcom RT2573 */
113 { USB_DEVICE(0x18e8, 0x6229) }, /* Qcom RT2573 */
114 { USB_DEVICE(0x18e8, 0x6238) }, /* Qcom RT2573 */
115 { USB_DEVICE(0x2019, 0xab01) }, /* Planex GW-US54HP */
116 { USB_DEVICE(0x2019, 0xab50) }, /* Planex GW-US54Mini2 */
117 { USB_DEVICE(0x2019, 0xed02) }, /* Planex GW-USMM */
120 static int rum_alloc_tx_list(struct rum_softc *);
121 static void rum_free_tx_list(struct rum_softc *);
122 static int rum_alloc_rx_list(struct rum_softc *);
123 static void rum_free_rx_list(struct rum_softc *);
124 static int rum_media_change(struct ifnet *);
125 static void rum_next_scan(void *);
126 static void rum_task(void *);
127 static int rum_newstate(struct ieee80211com *,
128 enum ieee80211_state, int);
129 static void rum_txeof(usbd_xfer_handle, usbd_private_handle,
131 static void rum_rxeof(usbd_xfer_handle, usbd_private_handle,
133 static uint8_t rum_rxrate(struct rum_rx_desc *);
134 static uint8_t rum_plcp_signal(int);
135 static void rum_setup_tx_desc(struct rum_softc *,
136 struct rum_tx_desc *, uint32_t, uint16_t, int,
138 static int rum_tx_data(struct rum_softc *, struct mbuf *,
139 struct ieee80211_node *);
140 static void rum_start(struct ifnet *, struct ifaltq_subque *);
141 static void rum_watchdog(struct ifnet *);
142 static int rum_ioctl(struct ifnet *, u_long, caddr_t,
144 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
146 static uint32_t rum_read(struct rum_softc *, uint16_t);
147 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
149 static void rum_write(struct rum_softc *, uint16_t, uint32_t);
150 static void rum_write_multi(struct rum_softc *, uint16_t, void *,
152 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
153 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
154 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
155 static void rum_select_antenna(struct rum_softc *);
156 static void rum_enable_mrr(struct rum_softc *);
157 static void rum_set_txpreamble(struct rum_softc *);
158 static void rum_set_basicrates(struct rum_softc *);
159 static void rum_select_band(struct rum_softc *,
160 struct ieee80211_channel *);
161 static void rum_set_chan(struct rum_softc *,
162 struct ieee80211_channel *);
163 static void rum_enable_tsf_sync(struct rum_softc *);
164 static void rum_update_slot(struct rum_softc *);
165 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
166 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
167 static void rum_update_promisc(struct rum_softc *);
168 static const char *rum_get_rf(int);
169 static void rum_read_eeprom(struct rum_softc *);
170 static int rum_bbp_init(struct rum_softc *);
171 static void rum_init(void *);
172 static void rum_stop(struct rum_softc *);
173 static int rum_load_microcode(struct rum_softc *, const uint8_t *,
175 static int rum_prepare_beacon(struct rum_softc *);
177 static void rum_stats_timeout(void *);
178 static void rum_stats_update(usbd_xfer_handle, usbd_private_handle,
180 static void rum_stats(struct ieee80211com *,
181 struct ieee80211_node *,
182 struct ieee80211_ratectl_stats *);
183 static void *rum_ratectl_attach(struct ieee80211com *, u_int);
184 static int rum_get_rssi(struct rum_softc *, uint8_t);
187 * Supported rates for 802.11a/b/g modes (in 500Kbps unit).
189 static const struct ieee80211_rateset rum_rateset_11a =
190 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } };
192 static const struct ieee80211_rateset rum_rateset_11b =
193 { 4, { 2, 4, 11, 22 } };
195 static const struct ieee80211_rateset rum_rateset_11g =
196 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
198 static const struct {
205 static const struct {
212 static const struct rfprog {
214 uint32_t r1, r2, r3, r4;
221 static device_probe_t rum_match;
222 static device_attach_t rum_attach;
223 static device_detach_t rum_detach;
225 static devclass_t rum_devclass;
227 static kobj_method_t rum_methods[] = {
228 DEVMETHOD(device_probe, rum_match),
229 DEVMETHOD(device_attach, rum_attach),
230 DEVMETHOD(device_detach, rum_detach),
234 static driver_t rum_driver = {
237 sizeof(struct rum_softc)
240 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, usbd_driver_load, NULL);
242 MODULE_DEPEND(rum, usb, 1, 1, 1);
243 MODULE_DEPEND(rum, wlan, 1, 1, 1);
244 MODULE_DEPEND(rum, wlan_ratectl_onoe, 1, 1, 1);
247 rum_match(device_t self)
249 struct usb_attach_arg *uaa = device_get_ivars(self);
251 if (uaa->iface != NULL)
254 return (usb_lookup(rum_devs, uaa->vendor, uaa->product) != NULL) ?
255 UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
259 rum_attach(device_t self)
261 struct rum_softc *sc = device_get_softc(self);
262 struct usb_attach_arg *uaa = device_get_ivars(self);
263 struct ieee80211com *ic = &sc->sc_ic;
264 struct ifnet *ifp = &ic->ic_if;
265 usb_interface_descriptor_t *id;
266 usb_endpoint_descriptor_t *ed;
270 char ethstr[ETHER_ADDRSTRLEN + 1];
272 sc->sc_udev = uaa->device;
275 if (usbd_set_config_no(sc->sc_udev, RT2573_CONFIG_NO, 0) != 0) {
276 kprintf("%s: could not set configuration no\n",
277 device_get_nameunit(sc->sc_dev));
281 /* get the first interface handle */
282 error = usbd_device2interface_handle(sc->sc_udev, RT2573_IFACE_INDEX,
285 kprintf("%s: could not get interface handle\n",
286 device_get_nameunit(sc->sc_dev));
293 id = usbd_get_interface_descriptor(sc->sc_iface);
295 sc->sc_rx_no = sc->sc_tx_no = -1;
296 for (i = 0; i < id->bNumEndpoints; i++) {
297 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
299 kprintf("%s: no endpoint descriptor for iface %d\n",
300 device_get_nameunit(sc->sc_dev), i);
304 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
305 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
306 sc->sc_rx_no = ed->bEndpointAddress;
307 else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
308 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
309 sc->sc_tx_no = ed->bEndpointAddress;
311 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
312 kprintf("%s: missing endpoint\n", device_get_nameunit(sc->sc_dev));
316 usb_init_task(&sc->sc_task, rum_task, sc);
318 callout_init(&sc->scan_ch);
319 callout_init(&sc->stats_ch);
321 /* retrieve RT2573 rev. no */
322 for (ntries = 0; ntries < 1000; ntries++) {
323 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
327 if (ntries == 1000) {
328 kprintf("%s: timeout waiting for chip to settle\n",
329 device_get_nameunit(sc->sc_dev));
333 /* retrieve MAC address and various other things from EEPROM */
336 kprintf("%s: MAC/BBP RT%04x (rev 0x%05x), RF %s, address %s\n",
337 device_get_nameunit(sc->sc_dev), sc->macbbp_rev, tmp,
338 rum_get_rf(sc->rf_rev), kether_addr(ic->ic_myaddr, ethstr));
340 error = rum_load_microcode(sc, rt2573, sizeof(rt2573));
342 device_printf(self, "can't load microcode\n");
346 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
347 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
348 ic->ic_state = IEEE80211_S_INIT;
350 /* set device capabilities */
352 IEEE80211_C_IBSS | /* IBSS mode supported */
353 IEEE80211_C_MONITOR | /* monitor mode supported */
354 IEEE80211_C_HOSTAP | /* HostAp mode supported */
355 IEEE80211_C_TXPMGT | /* tx power management */
356 IEEE80211_C_SHPREAMBLE | /* short preamble supported */
357 IEEE80211_C_SHSLOT | /* short slot time supported */
358 IEEE80211_C_WPA; /* WPA 1+2 */
360 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
361 /* set supported .11a rates */
362 ic->ic_sup_rates[IEEE80211_MODE_11A] = rum_rateset_11a;
364 /* set supported .11a channels */
365 for (i = 34; i <= 46; i += 4) {
366 ic->ic_channels[i].ic_freq =
367 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
368 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
370 for (i = 36; i <= 64; i += 4) {
371 ic->ic_channels[i].ic_freq =
372 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
373 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
375 for (i = 100; i <= 140; i += 4) {
376 ic->ic_channels[i].ic_freq =
377 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
378 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
380 for (i = 149; i <= 165; i += 4) {
381 ic->ic_channels[i].ic_freq =
382 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
383 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
387 /* set supported .11b and .11g rates */
388 ic->ic_sup_rates[IEEE80211_MODE_11B] = rum_rateset_11b;
389 ic->ic_sup_rates[IEEE80211_MODE_11G] = rum_rateset_11g;
391 /* set supported .11b and .11g channels (1 through 14) */
392 for (i = 1; i <= 14; i++) {
393 ic->ic_channels[i].ic_freq =
394 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
395 ic->ic_channels[i].ic_flags =
396 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
397 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
400 sc->sc_sifs = IEEE80211_DUR_SIFS; /* Default SIFS */
402 if_initname(ifp, device_get_name(self), device_get_unit(self));
404 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
405 ifp->if_init = rum_init;
406 ifp->if_ioctl = rum_ioctl;
407 ifp->if_start = rum_start;
408 ifp->if_watchdog = rum_watchdog;
409 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
410 ifq_set_ready(&ifp->if_snd);
412 IEEE80211_ONOE_PARAM_SETUP(&sc->sc_onoe_param);
413 sc->sc_onoe_param.onoe_raise = 15;
414 ic->ic_ratectl.rc_st_ratectl_cap = IEEE80211_RATECTL_CAP_ONOE;
415 ic->ic_ratectl.rc_st_ratectl = IEEE80211_RATECTL_ONOE;
416 ic->ic_ratectl.rc_st_stats = rum_stats;
417 ic->ic_ratectl.rc_st_attach = rum_ratectl_attach;
419 ieee80211_ifattach(ic);
421 /* Enable software beacon missing handling. */
422 ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
424 /* override state transition machine */
425 sc->sc_newstate = ic->ic_newstate;
426 ic->ic_newstate = rum_newstate;
427 ieee80211_media_init(ic, rum_media_change, ieee80211_media_status);
429 bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
430 sizeof(struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN,
433 sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
434 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
435 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2573_RX_RADIOTAP_PRESENT);
437 sc->sc_txtap_len = sizeof sc->sc_txtapu;
438 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
439 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2573_TX_RADIOTAP_PRESENT);
442 ieee80211_announce(ic);
448 rum_detach(device_t self)
450 struct rum_softc *sc = device_get_softc(self);
451 struct ifnet *ifp = &sc->sc_ic.ic_if;
458 callout_stop(&sc->scan_ch);
459 callout_stop(&sc->stats_ch);
461 lwkt_serialize_enter(ifp->if_serializer);
463 lwkt_serialize_exit(ifp->if_serializer);
465 usb_rem_task(sc->sc_udev, &sc->sc_task);
468 ieee80211_ifdetach(&sc->sc_ic); /* free all nodes */
472 KKASSERT(sc->stats_xfer == NULL);
473 KKASSERT(sc->sc_rx_pipeh == NULL);
474 KKASSERT(sc->sc_tx_pipeh == NULL);
478 * Make sure TX/RX list is empty
480 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) {
481 struct rum_tx_data *data = &sc->tx_data[i];
483 KKASSERT(data->xfer == NULL);
484 KKASSERT(data->ni == NULL);
485 KKASSERT(data->m == NULL);
487 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
488 struct rum_rx_data *data = &sc->rx_data[i];
490 KKASSERT(data->xfer == NULL);
491 KKASSERT(data->m == NULL);
498 rum_alloc_tx_list(struct rum_softc *sc)
503 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) {
504 struct rum_tx_data *data = &sc->tx_data[i];
508 data->xfer = usbd_alloc_xfer(sc->sc_udev);
509 if (data->xfer == NULL) {
510 kprintf("%s: could not allocate tx xfer\n",
511 device_get_nameunit(sc->sc_dev));
515 data->buf = usbd_alloc_buffer(data->xfer,
516 RT2573_TX_DESC_SIZE + IEEE80211_MAX_LEN);
517 if (data->buf == NULL) {
518 kprintf("%s: could not allocate tx buffer\n",
519 device_get_nameunit(sc->sc_dev));
523 /* clean Tx descriptor */
524 bzero(data->buf, RT2573_TX_DESC_SIZE);
530 rum_free_tx_list(struct rum_softc *sc)
534 for (i = 0; i < RT2573_TX_LIST_COUNT; i++) {
535 struct rum_tx_data *data = &sc->tx_data[i];
537 if (data->xfer != NULL) {
538 usbd_free_xfer(data->xfer);
541 if (data->ni != NULL) {
542 ieee80211_free_node(data->ni);
545 if (data->m != NULL) {
554 rum_alloc_rx_list(struct rum_softc *sc)
558 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
559 struct rum_rx_data *data = &sc->rx_data[i];
563 data->xfer = usbd_alloc_xfer(sc->sc_udev);
564 if (data->xfer == NULL) {
565 kprintf("%s: could not allocate rx xfer\n",
566 device_get_nameunit(sc->sc_dev));
570 if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
571 kprintf("%s: could not allocate rx buffer\n",
572 device_get_nameunit(sc->sc_dev));
576 data->m = m_getcl(MB_WAIT, MT_DATA, M_PKTHDR);
578 data->buf = mtod(data->m, uint8_t *);
579 bzero(data->buf, sizeof(struct rum_rx_desc));
585 rum_free_rx_list(struct rum_softc *sc)
589 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
590 struct rum_rx_data *data = &sc->rx_data[i];
592 if (data->xfer != NULL) {
593 usbd_free_xfer(data->xfer);
596 if (data->m != NULL) {
604 rum_media_change(struct ifnet *ifp)
608 error = ieee80211_media_change(ifp);
609 if (error != ENETRESET)
612 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
613 rum_init(ifp->if_softc);
619 * This function is called periodically (every 200ms) during scanning to
620 * switch from one channel to another.
623 rum_next_scan(void *arg)
625 struct rum_softc *sc = arg;
626 struct ieee80211com *ic = &sc->sc_ic;
627 struct ifnet *ifp = &ic->ic_if;
634 if (ic->ic_state == IEEE80211_S_SCAN) {
635 lwkt_serialize_enter(ifp->if_serializer);
636 ieee80211_next_scan(ic);
637 lwkt_serialize_exit(ifp->if_serializer);
646 struct rum_softc *sc = xarg;
647 struct ieee80211com *ic = &sc->sc_ic;
648 struct ifnet *ifp = &ic->ic_if;
649 enum ieee80211_state nstate;
650 struct ieee80211_node *ni;
658 nstate = sc->sc_state;
661 KASSERT(nstate != IEEE80211_S_INIT,
662 ("->INIT state transition should not be defered\n"));
663 rum_set_chan(sc, ic->ic_curchan);
666 case IEEE80211_S_RUN:
669 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
672 rum_set_txpreamble(sc);
673 rum_set_basicrates(sc);
674 rum_set_bssid(sc, ni->ni_bssid);
677 if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
678 ic->ic_opmode == IEEE80211_M_IBSS)
679 rum_prepare_beacon(sc);
681 if (ic->ic_opmode != IEEE80211_M_MONITOR)
682 rum_enable_tsf_sync(sc);
684 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
685 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
686 callout_reset(&sc->stats_ch, 4 * hz / 5, rum_stats_timeout, sc);
689 case IEEE80211_S_SCAN:
690 callout_reset(&sc->scan_ch, hz / 5, rum_next_scan, sc);
697 lwkt_serialize_enter(ifp->if_serializer);
698 ieee80211_ratectl_newstate(ic, nstate);
699 sc->sc_newstate(ic, nstate, arg);
700 lwkt_serialize_exit(ifp->if_serializer);
706 rum_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
708 struct rum_softc *sc = ic->ic_if.if_softc;
709 struct ifnet *ifp = &ic->ic_if;
713 ASSERT_SERIALIZED(ifp->if_serializer);
715 callout_stop(&sc->scan_ch);
716 callout_stop(&sc->stats_ch);
718 /* do it in a process context */
719 sc->sc_state = nstate;
722 lwkt_serialize_exit(ifp->if_serializer);
723 usb_rem_task(sc->sc_udev, &sc->sc_task);
725 if (nstate == IEEE80211_S_INIT) {
726 lwkt_serialize_enter(ifp->if_serializer);
727 ieee80211_ratectl_newstate(ic, nstate);
728 sc->sc_newstate(ic, nstate, arg);
730 usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER);
731 lwkt_serialize_enter(ifp->if_serializer);
738 /* quickly determine if a given rate is CCK or OFDM */
739 #define RUM_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
741 #define RUM_ACK_SIZE (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
744 rum_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
746 struct rum_tx_data *data = priv;
747 struct rum_softc *sc = data->sc;
748 struct ieee80211com *ic = &sc->sc_ic;
749 struct ifnet *ifp = &ic->ic_if;
750 struct ieee80211_node *ni;
757 if (status != USBD_NORMAL_COMPLETION) {
758 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
763 kprintf("%s: could not transmit buffer: %s\n",
764 device_get_nameunit(sc->sc_dev), usbd_errstr(status));
766 if (status == USBD_STALLED)
767 usbd_clear_endpoint_stall_async(sc->sc_tx_pipeh);
769 IFNET_STAT_INC(ifp, oerrors, 1);
779 bzero(data->buf, sizeof(struct rum_tx_data));
781 IFNET_STAT_INC(ifp, opackets, 1); /* XXX may fail too */
783 DPRINTFN(10, ("tx done\n"));
786 ifq_clr_oactive(&ifp->if_snd);
788 lwkt_serialize_enter(ifp->if_serializer);
789 ieee80211_free_node(ni);
791 lwkt_serialize_exit(ifp->if_serializer);
797 rum_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
799 struct rum_rx_data *data = priv;
800 struct rum_softc *sc = data->sc;
801 struct ieee80211com *ic = &sc->sc_ic;
802 struct ifnet *ifp = &ic->ic_if;
803 struct rum_rx_desc *desc;
804 struct ieee80211_frame_min *wh;
805 struct ieee80211_node *ni;
806 struct mbuf *mnew, *m;
814 if (status != USBD_NORMAL_COMPLETION) {
815 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
820 if (status == USBD_STALLED)
821 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
825 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
827 if (len < RT2573_RX_DESC_SIZE + sizeof(struct ieee80211_frame_min)) {
828 DPRINTF(("%s: xfer too short %d\n", device_get_nameunit(sc->sc_dev),
830 IFNET_STAT_INC(ifp, ierrors, 1);
834 desc = (struct rum_rx_desc *)data->buf;
836 if (le32toh(desc->flags) & RT2573_RX_CRC_ERROR) {
838 * This should not happen since we did not request to receive
839 * those frames when we filled RT2573_TXRX_CSR0.
841 DPRINTFN(5, ("CRC error\n"));
842 IFNET_STAT_INC(ifp, ierrors, 1);
846 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
848 kprintf("%s: could not allocate rx mbuf\n",
849 device_get_nameunit(sc->sc_dev));
850 IFNET_STAT_INC(ifp, ierrors, 1);
858 lwkt_serialize_enter(ifp->if_serializer);
861 m->m_pkthdr.rcvif = ifp;
862 m->m_data = (caddr_t)(desc + 1);
863 m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff;
865 rssi = rum_get_rssi(sc, desc->rssi);
867 wh = mtod(m, struct ieee80211_frame_min *);
868 ni = ieee80211_find_rxnode(ic, wh);
870 /* Error happened during RSSI conversion. */
874 if (sc->sc_drvbpf != NULL) {
875 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
878 tap->wr_rate = rum_rxrate(desc);
879 tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
880 tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
881 tap->wr_antenna = sc->rx_ant;
882 tap->wr_antsignal = rssi;
884 bpf_ptap(sc->sc_drvbpf, m, tap, sc->sc_rxtap_len);
887 /* send the frame to the 802.11 layer */
888 ieee80211_input(ic, m, ni, rssi, 0);
890 /* node is no longer needed */
891 ieee80211_free_node(ni);
893 if (!ifq_is_oactive(&ifp->if_snd))
896 lwkt_serialize_exit(ifp->if_serializer);
899 data->buf = mtod(data->m, uint8_t *);
901 DPRINTFN(15, ("rx done\n"));
903 skip: /* setup a new transfer */
904 bzero(data->buf, sizeof(struct rum_rx_desc));
905 usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES,
906 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof);
913 * This function is only used by the Rx radiotap code. It returns the rate at
914 * which a given frame was received.
917 rum_rxrate(struct rum_rx_desc *desc)
919 if (le32toh(desc->flags) & RT2573_RX_OFDM) {
920 /* reverse function of rum_plcp_signal */
921 switch (desc->rate) {
929 case 0xc: return 108;
932 if (desc->rate == 10)
934 if (desc->rate == 20)
936 if (desc->rate == 55)
938 if (desc->rate == 110)
941 return 2; /* should not get there */
945 rum_plcp_signal(int rate)
948 /* CCK rates (returned values are device-dependent) */
954 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
962 case 108: return 0xc;
964 /* unsupported rates (should not get there) */
965 default: return 0xff;
970 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
971 uint32_t flags, uint16_t xflags, int len, int rate)
973 struct ieee80211com *ic = &sc->sc_ic;
974 uint16_t plcp_length;
977 desc->flags = htole32(flags);
978 desc->flags |= htole32(len << 16);
980 desc->xflags = htole16(xflags);
986 RT2573_LOGCWMAX(10));
988 /* setup PLCP fields */
989 desc->plcp_signal = rum_plcp_signal(rate);
990 desc->plcp_service = 4;
992 len += IEEE80211_CRC_LEN;
993 if (RUM_RATE_IS_OFDM(rate)) {
994 desc->flags |= htole32(RT2573_TX_OFDM);
996 plcp_length = len & 0xfff;
997 desc->plcp_length_hi = plcp_length >> 6;
998 desc->plcp_length_lo = plcp_length & 0x3f;
1000 plcp_length = (16 * len + rate - 1) / rate;
1002 remainder = (16 * len) % 22;
1003 if (remainder != 0 && remainder < 7)
1004 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1006 desc->plcp_length_hi = plcp_length >> 8;
1007 desc->plcp_length_lo = plcp_length & 0xff;
1009 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1010 desc->plcp_signal |= 0x08;
1012 desc->flags |= htole32(RT2573_TX_VALID);
1015 #define RUM_TX_TIMEOUT 5000
1018 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1020 struct ieee80211com *ic = &sc->sc_ic;
1021 struct ifnet *ifp = &ic->ic_if;
1022 struct rum_tx_desc *desc;
1023 struct rum_tx_data *data;
1024 struct ieee80211_frame *wh;
1028 int xferlen, rate, rateidx;
1030 wh = mtod(m0, struct ieee80211_frame *);
1032 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1033 if (ieee80211_crypto_encap(ic, ni, m0) == NULL) {
1038 /* packet header may have moved, reset our local pointer */
1039 wh = mtod(m0, struct ieee80211_frame *);
1043 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1044 IEEE80211_FC0_TYPE_MGT) {
1045 /* mgmt frames are sent at the lowest available bit-rate */
1048 ieee80211_ratectl_findrate(ni, m0->m_pkthdr.len, &rateidx, 1);
1050 rate = IEEE80211_RS_RATE(&ni->ni_rates, rateidx);
1052 data = &sc->tx_data[0];
1053 desc = (struct rum_tx_desc *)data->buf;
1058 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1059 flags |= RT2573_TX_ACK;
1061 dur = ieee80211_txtime(ni, RUM_ACK_SIZE,
1062 ieee80211_ack_rate(ni, rate), ic->ic_flags) +
1064 *(uint16_t *)wh->i_dur = htole16(dur);
1066 /* tell hardware to set timestamp in probe responses */
1068 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1069 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1070 flags |= RT2573_TX_TIMESTAMP;
1073 if (sc->sc_drvbpf != NULL) {
1074 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1077 tap->wt_rate = rate;
1078 tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
1079 tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
1080 tap->wt_antenna = sc->tx_ant;
1082 bpf_ptap(sc->sc_drvbpf, m0, tap, sc->sc_txtap_len);
1085 m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RT2573_TX_DESC_SIZE);
1086 rum_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate);
1088 /* Align end on a 4-bytes boundary */
1089 xferlen = roundup(RT2573_TX_DESC_SIZE + m0->m_pkthdr.len, 4);
1092 * No space left in the last URB to store the extra 4 bytes, force
1093 * sending of another URB.
1095 if ((xferlen % 64) == 0)
1098 DPRINTFN(10, ("sending frame len=%u rate=%u xfer len=%u\n",
1099 m0->m_pkthdr.len + RT2573_TX_DESC_SIZE, rate, xferlen));
1101 lwkt_serialize_exit(ifp->if_serializer);
1103 usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf, xferlen,
1104 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUM_TX_TIMEOUT, rum_txeof);
1106 error = usbd_transfer(data->xfer);
1107 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
1116 lwkt_serialize_enter(ifp->if_serializer);
1121 rum_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
1123 struct rum_softc *sc = ifp->if_softc;
1124 struct ieee80211com *ic = &sc->sc_ic;
1126 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
1127 ASSERT_SERIALIZED(ifp->if_serializer);
1129 if (sc->sc_stopped) {
1130 ifq_purge(&ifp->if_snd);
1136 if ((ifp->if_flags & IFF_RUNNING) == 0 ||
1137 ifq_is_oactive(&ifp->if_snd)) {
1143 struct ieee80211_node *ni;
1146 if (!IF_QEMPTY(&ic->ic_mgtq)) {
1147 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) {
1148 ifq_set_oactive(&ifp->if_snd);
1151 IF_DEQUEUE(&ic->ic_mgtq, m0);
1153 ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
1154 m0->m_pkthdr.rcvif = NULL;
1158 if (rum_tx_data(sc, m0, ni) != 0) {
1159 ieee80211_free_node(ni);
1163 struct ether_header *eh;
1165 if (ic->ic_state != IEEE80211_S_RUN) {
1166 ifq_purge(&ifp->if_snd);
1170 if (sc->tx_queued >= RT2573_TX_LIST_COUNT) {
1171 ifq_set_oactive(&ifp->if_snd);
1175 m0 = ifq_dequeue(&ifp->if_snd, NULL);
1179 if (m0->m_len < sizeof(struct ether_header)) {
1180 m0 = m_pullup(m0, sizeof(struct ether_header));
1182 IFNET_STAT_INC(ifp, oerrors, 1);
1186 eh = mtod(m0, struct ether_header *);
1188 ni = ieee80211_find_txnode(ic, eh->ether_dhost);
1196 m0 = ieee80211_encap(ic, m0, ni);
1198 ieee80211_free_node(ni);
1202 if (ic->ic_rawbpf != NULL)
1203 bpf_mtap(ic->ic_rawbpf, m0);
1205 if (rum_tx_data(sc, m0, ni) != 0) {
1206 ieee80211_free_node(ni);
1207 IFNET_STAT_INC(ifp, oerrors, 1);
1212 sc->sc_tx_timer = 5;
1220 rum_watchdog(struct ifnet *ifp)
1222 struct rum_softc *sc = ifp->if_softc;
1224 ASSERT_SERIALIZED(ifp->if_serializer);
1230 if (sc->sc_tx_timer > 0) {
1231 if (--sc->sc_tx_timer == 0) {
1232 kprintf("%s: device timeout\n", device_get_nameunit(sc->sc_dev));
1233 /*rum_init(sc); XXX needs a process context! */
1234 IFNET_STAT_INC(ifp, oerrors, 1);
1242 ieee80211_watchdog(&sc->sc_ic);
1248 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1250 struct rum_softc *sc = ifp->if_softc;
1251 struct ieee80211com *ic = &sc->sc_ic;
1254 ASSERT_SERIALIZED(ifp->if_serializer);
1260 if (ifp->if_flags & IFF_UP) {
1261 if (ifp->if_flags & IFF_RUNNING) {
1262 lwkt_serialize_exit(ifp->if_serializer);
1263 rum_update_promisc(sc);
1264 lwkt_serialize_enter(ifp->if_serializer);
1269 if (ifp->if_flags & IFF_RUNNING)
1274 error = ieee80211_ioctl(ic, cmd, data, cr);
1278 if (error == ENETRESET) {
1279 struct ieee80211req *ireq = (struct ieee80211req *)data;
1281 if (cmd == SIOCS80211 &&
1282 ireq->i_type == IEEE80211_IOC_CHANNEL &&
1283 ic->ic_opmode == IEEE80211_M_MONITOR) {
1285 * This allows for fast channel switching in monitor
1286 * mode (used by kismet). In IBSS mode, we must
1287 * explicitly reset the interface to generate a new
1290 lwkt_serialize_exit(ifp->if_serializer);
1291 rum_set_chan(sc, ic->ic_ibss_chan);
1292 lwkt_serialize_enter(ifp->if_serializer);
1293 } else if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
1294 (IFF_UP | IFF_RUNNING)) {
1305 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1307 usb_device_request_t req;
1310 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1311 req.bRequest = RT2573_READ_EEPROM;
1312 USETW(req.wValue, 0);
1313 USETW(req.wIndex, addr);
1314 USETW(req.wLength, len);
1316 error = usbd_do_request(sc->sc_udev, &req, buf);
1318 kprintf("%s: could not read EEPROM: %s\n",
1319 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1324 rum_read(struct rum_softc *sc, uint16_t reg)
1328 rum_read_multi(sc, reg, &val, sizeof val);
1330 return le32toh(val);
1334 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1336 usb_device_request_t req;
1339 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1340 req.bRequest = RT2573_READ_MULTI_MAC;
1341 USETW(req.wValue, 0);
1342 USETW(req.wIndex, reg);
1343 USETW(req.wLength, len);
1345 error = usbd_do_request(sc->sc_udev, &req, buf);
1347 kprintf("%s: could not multi read MAC register: %s\n",
1348 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1353 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1355 uint32_t tmp = htole32(val);
1357 rum_write_multi(sc, reg, &tmp, sizeof tmp);
1361 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1363 usb_device_request_t req;
1366 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1367 req.bRequest = RT2573_WRITE_MULTI_MAC;
1368 USETW(req.wValue, 0);
1369 USETW(req.wIndex, reg);
1370 USETW(req.wLength, len);
1372 error = usbd_do_request(sc->sc_udev, &req, buf);
1374 kprintf("%s: could not multi write MAC register: %s\n",
1375 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
1380 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1385 for (ntries = 0; ntries < 5; ntries++) {
1386 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1390 kprintf("%s: could not write to BBP\n", device_get_nameunit(sc->sc_dev));
1394 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1395 rum_write(sc, RT2573_PHY_CSR3, tmp);
1399 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1404 for (ntries = 0; ntries < 5; ntries++) {
1405 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1409 kprintf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
1413 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1414 rum_write(sc, RT2573_PHY_CSR3, val);
1416 for (ntries = 0; ntries < 100; ntries++) {
1417 val = rum_read(sc, RT2573_PHY_CSR3);
1418 if (!(val & RT2573_BBP_BUSY))
1423 kprintf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
1428 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1433 for (ntries = 0; ntries < 5; ntries++) {
1434 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1438 kprintf("%s: could not write to RF\n", device_get_nameunit(sc->sc_dev));
1442 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1444 rum_write(sc, RT2573_PHY_CSR4, tmp);
1446 /* remember last written value in sc */
1447 sc->rf_regs[reg] = val;
1449 DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff));
1453 rum_select_antenna(struct rum_softc *sc)
1455 uint8_t bbp4, bbp77;
1458 bbp4 = rum_bbp_read(sc, 4);
1459 bbp77 = rum_bbp_read(sc, 77);
1463 /* make sure Rx is disabled before switching antenna */
1464 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1465 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1467 rum_bbp_write(sc, 4, bbp4);
1468 rum_bbp_write(sc, 77, bbp77);
1470 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1474 * Enable multi-rate retries for frames sent at OFDM rates.
1475 * In 802.11b/g mode, allow fallback to CCK rates.
1478 rum_enable_mrr(struct rum_softc *sc)
1480 struct ieee80211com *ic = &sc->sc_ic;
1483 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1485 tmp &= ~RT2573_MRR_CCK_FALLBACK;
1486 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
1487 tmp |= RT2573_MRR_CCK_FALLBACK;
1488 tmp |= RT2573_MRR_ENABLED;
1490 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1494 rum_set_txpreamble(struct rum_softc *sc)
1498 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1500 tmp &= ~RT2573_SHORT_PREAMBLE;
1501 if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
1502 tmp |= RT2573_SHORT_PREAMBLE;
1504 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1508 rum_set_basicrates(struct rum_softc *sc)
1510 struct ieee80211com *ic = &sc->sc_ic;
1512 /* update basic rate set */
1513 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1514 /* 11b basic rates: 1, 2Mbps */
1515 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
1516 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) {
1517 /* 11a basic rates: 6, 12, 24Mbps */
1518 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
1520 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
1521 rum_write(sc, RT2573_TXRX_CSR5, 0x15f);
1526 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
1530 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
1532 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1535 /* update all BBP registers that depend on the band */
1536 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1537 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
1538 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1539 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1540 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
1542 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1543 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1544 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1548 rum_bbp_write(sc, 17, bbp17);
1549 rum_bbp_write(sc, 96, bbp96);
1550 rum_bbp_write(sc, 104, bbp104);
1552 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1553 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1554 rum_bbp_write(sc, 75, 0x80);
1555 rum_bbp_write(sc, 86, 0x80);
1556 rum_bbp_write(sc, 88, 0x80);
1559 rum_bbp_write(sc, 35, bbp35);
1560 rum_bbp_write(sc, 97, bbp97);
1561 rum_bbp_write(sc, 98, bbp98);
1563 tmp = rum_read(sc, RT2573_PHY_CSR0);
1564 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
1565 if (IEEE80211_IS_CHAN_2GHZ(c))
1566 tmp |= RT2573_PA_PE_2GHZ;
1568 tmp |= RT2573_PA_PE_5GHZ;
1569 rum_write(sc, RT2573_PHY_CSR0, tmp);
1573 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
1575 struct ieee80211com *ic = &sc->sc_ic;
1576 const struct rfprog *rfprog;
1577 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
1581 chan = ieee80211_chan2ieee(ic, c);
1582 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1585 /* select the appropriate RF settings based on what EEPROM says */
1586 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
1587 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
1589 /* find the settings for this channel (we know it exists) */
1590 for (i = 0; rfprog[i].chan != chan; i++)
1593 power = sc->txpow[i];
1597 } else if (power > 31) {
1598 bbp94 += power - 31;
1603 * If we are switching from the 2GHz band to the 5GHz band or
1604 * vice-versa, BBP registers need to be reprogrammed.
1606 if (c->ic_flags != sc->sc_curchan->ic_flags) {
1607 rum_select_band(sc, c);
1608 rum_select_antenna(sc);
1612 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1613 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1614 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1615 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1617 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1618 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1619 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
1620 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1622 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1623 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1624 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1625 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1629 /* enable smart mode for MIMO-capable RFs */
1630 bbp3 = rum_bbp_read(sc, 3);
1632 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
1633 bbp3 &= ~RT2573_SMART_MODE;
1635 bbp3 |= RT2573_SMART_MODE;
1637 rum_bbp_write(sc, 3, bbp3);
1639 if (bbp94 != RT2573_BBPR94_DEFAULT)
1640 rum_bbp_write(sc, 94, bbp94);
1642 sc->sc_sifs = IEEE80211_IS_CHAN_5GHZ(c) ? IEEE80211_DUR_OFDM_SIFS
1643 : IEEE80211_DUR_SIFS;
1647 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
1648 * and HostAP operating modes.
1651 rum_enable_tsf_sync(struct rum_softc *sc)
1653 struct ieee80211com *ic = &sc->sc_ic;
1656 if (ic->ic_opmode != IEEE80211_M_STA) {
1658 * Change default 16ms TBTT adjustment to 8ms.
1659 * Must be done before enabling beacon generation.
1661 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
1664 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
1666 /* set beacon interval (in 1/16ms unit) */
1667 tmp |= ic->ic_bss->ni_intval * 16;
1669 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
1670 if (ic->ic_opmode == IEEE80211_M_STA)
1671 tmp |= RT2573_TSF_MODE(1);
1673 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
1675 rum_write(sc, RT2573_TXRX_CSR9, tmp);
1679 rum_update_slot(struct rum_softc *sc)
1681 struct ieee80211com *ic = &sc->sc_ic;
1685 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1687 tmp = rum_read(sc, RT2573_MAC_CSR9);
1688 tmp = (tmp & ~0xff) | slottime;
1689 rum_write(sc, RT2573_MAC_CSR9, tmp);
1691 DPRINTF(("setting slot time to %uus\n", slottime));
1695 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
1699 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
1700 rum_write(sc, RT2573_MAC_CSR4, tmp);
1702 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
1703 rum_write(sc, RT2573_MAC_CSR5, tmp);
1707 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
1711 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
1712 rum_write(sc, RT2573_MAC_CSR2, tmp);
1714 tmp = addr[4] | addr[5] << 8 | 0xff << 16;
1715 rum_write(sc, RT2573_MAC_CSR3, tmp);
1719 rum_update_promisc(struct rum_softc *sc)
1721 struct ifnet *ifp = &sc->sc_ic.ic_if;
1724 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1726 tmp &= ~RT2573_DROP_NOT_TO_ME;
1727 if (!(ifp->if_flags & IFF_PROMISC))
1728 tmp |= RT2573_DROP_NOT_TO_ME;
1730 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1732 DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1733 "entering" : "leaving"));
1740 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
1741 case RT2573_RF_2528: return "RT2528";
1742 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
1743 case RT2573_RF_5226: return "RT5226";
1744 default: return "unknown";
1749 rum_read_eeprom(struct rum_softc *sc)
1751 struct ieee80211com *ic = &sc->sc_ic;
1757 /* read MAC/BBP type */
1758 rum_eeprom_read(sc, RT2573_EEPROM_MACBBP, &val, 2);
1759 sc->macbbp_rev = le16toh(val);
1761 /* read MAC address */
1762 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, ic->ic_myaddr, 6);
1764 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
1766 sc->rf_rev = (val >> 11) & 0x1f;
1767 sc->hw_radio = (val >> 10) & 0x1;
1768 sc->rx_ant = (val >> 4) & 0x3;
1769 sc->tx_ant = (val >> 2) & 0x3;
1770 sc->nb_ant = val & 0x3;
1772 DPRINTF(("RF revision=%d\n", sc->rf_rev));
1774 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
1776 sc->ext_5ghz_lna = (val >> 6) & 0x1;
1777 sc->ext_2ghz_lna = (val >> 4) & 0x1;
1779 DPRINTF(("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
1780 sc->ext_2ghz_lna, sc->ext_5ghz_lna));
1782 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
1784 if ((val & 0xff) != 0xff)
1785 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
1787 /* Only [-10, 10] is valid */
1788 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
1789 sc->rssi_2ghz_corr = 0;
1791 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
1793 if ((val & 0xff) != 0xff)
1794 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
1796 /* Only [-10, 10] is valid */
1797 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
1798 sc->rssi_5ghz_corr = 0;
1800 if (sc->ext_2ghz_lna)
1801 sc->rssi_2ghz_corr -= 14;
1802 if (sc->ext_5ghz_lna)
1803 sc->rssi_5ghz_corr -= 14;
1805 DPRINTF(("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
1806 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr));
1808 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
1810 if ((val & 0xff) != 0xff)
1811 sc->rffreq = val & 0xff;
1813 DPRINTF(("RF freq=%d\n", sc->rffreq));
1815 /* read Tx power for all a/b/g channels */
1816 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
1817 /* XXX default Tx power for 802.11a channels */
1818 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
1820 for (i = 0; i < 14; i++)
1821 DPRINTF(("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]));
1824 /* read default values for BBP registers */
1825 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1827 for (i = 0; i < 14; i++) {
1828 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1830 DPRINTF(("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
1831 sc->bbp_prom[i].val));
1837 rum_bbp_init(struct rum_softc *sc)
1839 #define N(a) (sizeof (a) / sizeof ((a)[0]))
1843 /* wait for BBP to be ready */
1844 for (ntries = 0; ntries < 100; ntries++) {
1845 val = rum_bbp_read(sc, 0);
1846 if (val != 0 && val != 0xff)
1850 if (ntries == 100) {
1851 kprintf("%s: timeout waiting for BBP\n",
1852 device_get_nameunit(sc->sc_dev));
1856 /* initialize BBP registers to default values */
1857 for (i = 0; i < N(rum_def_bbp); i++)
1858 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
1860 /* write vendor-specific BBP values (from EEPROM) */
1861 for (i = 0; i < 16; i++) {
1862 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1864 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1874 #define N(a) (sizeof(a) / sizeof((a)[0]))
1875 struct rum_softc *sc = xsc;
1876 struct ieee80211com *ic = &sc->sc_ic;
1877 struct ifnet *ifp = &ic->ic_if;
1878 struct rum_rx_data *data;
1880 usbd_status usb_err;
1881 int i, ntries, error;
1883 ASSERT_SERIALIZED(ifp->if_serializer);
1890 lwkt_serialize_exit(ifp->if_serializer);
1892 /* initialize MAC registers to default values */
1893 for (i = 0; i < N(rum_def_mac); i++)
1894 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
1896 /* set host ready */
1897 rum_write(sc, RT2573_MAC_CSR1, 3);
1898 rum_write(sc, RT2573_MAC_CSR1, 0);
1900 /* wait for BBP/RF to wakeup */
1901 for (ntries = 0; ntries < 1000; ntries++) {
1902 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
1904 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
1907 if (ntries == 1000) {
1908 kprintf("%s: timeout waiting for BBP/RF to wakeup\n",
1909 device_get_nameunit(sc->sc_dev));
1914 error = rum_bbp_init(sc);
1918 /* select default channel */
1919 sc->sc_curchan = ic->ic_curchan = ic->ic_ibss_chan;
1921 rum_select_band(sc, sc->sc_curchan);
1922 rum_select_antenna(sc);
1923 rum_set_chan(sc, sc->sc_curchan);
1925 /* clear STA registers */
1926 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
1928 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
1929 rum_set_macaddr(sc, ic->ic_myaddr);
1931 /* initialize ASIC */
1932 rum_write(sc, RT2573_MAC_CSR1, 4);
1935 * Allocate xfer for AMRR statistics requests.
1937 sc->stats_xfer = usbd_alloc_xfer(sc->sc_udev);
1938 if (sc->stats_xfer == NULL) {
1939 kprintf("%s: could not allocate AMRR xfer\n",
1940 device_get_nameunit(sc->sc_dev));
1946 * Open Tx and Rx USB bulk pipes.
1948 usb_err = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE,
1950 if (usb_err != USBD_NORMAL_COMPLETION) {
1951 kprintf("%s: could not open Tx pipe: %s\n",
1952 device_get_nameunit(sc->sc_dev), usbd_errstr(usb_err));
1957 usb_err = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
1959 if (usb_err != USBD_NORMAL_COMPLETION) {
1960 kprintf("%s: could not open Rx pipe: %s\n",
1961 device_get_nameunit(sc->sc_dev), usbd_errstr(usb_err));
1967 * Allocate Tx and Rx xfer queues.
1969 error = rum_alloc_tx_list(sc);
1971 kprintf("%s: could not allocate Tx list\n",
1972 device_get_nameunit(sc->sc_dev));
1976 error = rum_alloc_rx_list(sc);
1978 kprintf("%s: could not allocate Rx list\n",
1979 device_get_nameunit(sc->sc_dev));
1984 * Start up the receive pipe.
1986 for (i = 0; i < RT2573_RX_LIST_COUNT; i++) {
1987 data = &sc->rx_data[i];
1989 usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf,
1990 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rum_rxeof);
1991 usbd_transfer(data->xfer);
1994 /* update Rx filter */
1995 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
1997 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
1998 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1999 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2001 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2002 tmp |= RT2573_DROP_TODS;
2003 if (!(ifp->if_flags & IFF_PROMISC))
2004 tmp |= RT2573_DROP_NOT_TO_ME;
2006 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2008 lwkt_serialize_enter(ifp->if_serializer);
2013 ifq_clr_oactive(&ifp->if_snd);
2014 ifp->if_flags |= IFF_RUNNING;
2016 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2017 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
2018 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
2020 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
2029 rum_stop(struct rum_softc *sc)
2031 struct ieee80211com *ic = &sc->sc_ic;
2032 struct ifnet *ifp = &ic->ic_if;
2035 ASSERT_SERIALIZED(ifp->if_serializer);
2039 ifp->if_flags &= ~IFF_RUNNING;
2040 ifq_clr_oactive(&ifp->if_snd);
2043 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); /* free all nodes */
2045 sc->sc_tx_timer = 0;
2048 lwkt_serialize_exit(ifp->if_serializer);
2051 tmp = rum_read(sc, RT2573_TXRX_CSR0);
2052 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2055 rum_write(sc, RT2573_MAC_CSR1, 3);
2056 rum_write(sc, RT2573_MAC_CSR1, 0);
2058 if (sc->stats_xfer != NULL) {
2059 usbd_free_xfer(sc->stats_xfer);
2060 sc->stats_xfer = NULL;
2063 if (sc->sc_rx_pipeh != NULL) {
2064 usbd_abort_pipe(sc->sc_rx_pipeh);
2065 usbd_close_pipe(sc->sc_rx_pipeh);
2066 sc->sc_rx_pipeh = NULL;
2069 if (sc->sc_tx_pipeh != NULL) {
2070 usbd_abort_pipe(sc->sc_tx_pipeh);
2071 usbd_close_pipe(sc->sc_tx_pipeh);
2072 sc->sc_tx_pipeh = NULL;
2075 lwkt_serialize_enter(ifp->if_serializer);
2077 rum_free_rx_list(sc);
2078 rum_free_tx_list(sc);
2084 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2086 usb_device_request_t req;
2087 uint16_t reg = RT2573_MCU_CODE_BASE;
2090 /* copy firmware image into NIC */
2091 for (; size >= 4; reg += 4, ucode += 4, size -= 4)
2092 rum_write(sc, reg, UGETDW(ucode));
2094 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2095 req.bRequest = RT2573_MCU_CNTL;
2096 USETW(req.wValue, RT2573_MCU_RUN);
2097 USETW(req.wIndex, 0);
2098 USETW(req.wLength, 0);
2100 error = usbd_do_request(sc->sc_udev, &req, NULL);
2102 kprintf("%s: could not run firmware: %s\n",
2103 device_get_nameunit(sc->sc_dev), usbd_errstr(error));
2109 rum_prepare_beacon(struct rum_softc *sc)
2111 struct ieee80211com *ic = &sc->sc_ic;
2112 struct ifnet *ifp = &ic->ic_if;
2113 struct ieee80211_beacon_offsets bo;
2114 struct rum_tx_desc desc;
2118 lwkt_serialize_enter(ifp->if_serializer);
2119 m0 = ieee80211_beacon_alloc(ic, ic->ic_bss, &bo);
2120 lwkt_serialize_exit(ifp->if_serializer);
2123 if_printf(&ic->ic_if, "could not allocate beacon frame\n");
2127 /* send beacons at the lowest available rate */
2128 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan) ? 12 : 2;
2130 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
2131 m0->m_pkthdr.len, rate);
2133 /* copy the first 24 bytes of Tx descriptor into NIC memory */
2134 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2136 /* copy beacon header and payload into NIC memory */
2137 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
2146 rum_stats_timeout(void *arg)
2148 struct rum_softc *sc = arg;
2149 usb_device_request_t req;
2157 * Asynchronously read statistic registers (cleared by read).
2159 req.bmRequestType = UT_READ_VENDOR_DEVICE;
2160 req.bRequest = RT2573_READ_MULTI_MAC;
2161 USETW(req.wValue, 0);
2162 USETW(req.wIndex, RT2573_STA_CSR0);
2163 USETW(req.wLength, sizeof(sc->sta));
2165 usbd_setup_default_xfer(sc->stats_xfer, sc->sc_udev, sc,
2166 USBD_DEFAULT_TIMEOUT, &req,
2167 sc->sta, sizeof(sc->sta), 0,
2169 usbd_transfer(sc->stats_xfer);
2175 rum_stats_update(usbd_xfer_handle xfer, usbd_private_handle priv,
2178 struct rum_softc *sc = (struct rum_softc *)priv;
2179 struct ifnet *ifp = &sc->sc_ic.ic_if;
2180 struct ieee80211_ratectl_stats *stats = &sc->sc_stats;
2182 if (status != USBD_NORMAL_COMPLETION) {
2183 kprintf("%s: could not retrieve Tx statistics - cancelling "
2184 "automatic rate control\n", device_get_nameunit(sc->sc_dev));
2190 /* count TX retry-fail as Tx errors */
2191 IFNET_STAT_INC(ifp, oerrors, RUM_TX_PKT_FAIL(sc));
2193 stats->stats_pkt_noretry += RUM_TX_PKT_NO_RETRY(sc);
2194 stats->stats_pkt_ok += RUM_TX_PKT_NO_RETRY(sc) +
2195 RUM_TX_PKT_ONE_RETRY(sc) +
2196 RUM_TX_PKT_MULTI_RETRY(sc);
2197 stats->stats_pkt_err += RUM_TX_PKT_FAIL(sc);
2199 stats->stats_retries += RUM_TX_PKT_ONE_RETRY(sc);
2202 * XXX Estimated average:
2203 * Actual number of retries for each packet should belong to
2204 * [2, RUM_TX_SHORT_RETRY_MAX]
2206 stats->stats_retries += RUM_TX_PKT_MULTI_RETRY(sc) *
2207 ((2 + RUM_TX_SHORT_RETRY_MAX) / 2);
2209 stats->stats_retries += RUM_TX_PKT_MULTI_RETRY(sc);
2211 stats->stats_retries += RUM_TX_PKT_FAIL(sc) * RUM_TX_SHORT_RETRY_MAX;
2213 callout_reset(&sc->stats_ch, 4 * hz / 5, rum_stats_timeout, sc);
2219 rum_stats(struct ieee80211com *ic, struct ieee80211_node *ni __unused,
2220 struct ieee80211_ratectl_stats *stats)
2222 struct ifnet *ifp = &ic->ic_if;
2223 struct rum_softc *sc = ifp->if_softc;
2225 ASSERT_SERIALIZED(ifp->if_serializer);
2227 bcopy(&sc->sc_stats, stats, sizeof(*stats));
2228 bzero(&sc->sc_stats, sizeof(sc->sc_stats));
2232 rum_ratectl_attach(struct ieee80211com *ic, u_int rc)
2234 struct rum_softc *sc = ic->ic_if.if_softc;
2237 case IEEE80211_RATECTL_ONOE:
2238 return &sc->sc_onoe_param;
2239 case IEEE80211_RATECTL_NONE:
2240 /* This could only happen during detaching */
2243 panic("unknown rate control algo %u", rc);
2249 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
2253 lna = (raw >> 5) & 0x3;
2260 * NB: Since RSSI is relative to noise floor, -1 is
2261 * adequate for caller to know error happened.
2266 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
2268 if (IEEE80211_IS_CHAN_2GHZ(sc->sc_curchan)) {
2269 rssi += sc->rssi_2ghz_corr;
2278 rssi += sc->rssi_5ghz_corr;
2280 if (!sc->ext_5ghz_lna && lna != 1)