4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.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.
21 #include <sys/cdefs.h>
22 __FBSDID("$FreeBSD$");
25 * Ralink Technology RT2501USB/RT2601USB chipset driver
26 * http://www.ralinktech.com.tw/
29 #include <sys/param.h>
30 #include <sys/sockio.h>
31 #include <sys/sysctl.h>
33 #include <sys/mutex.h>
35 #include <sys/kernel.h>
36 #include <sys/socket.h>
37 #include <sys/systm.h>
38 #include <sys/malloc.h>
39 #include <sys/module.h>
41 #include <sys/endian.h>
44 #include <machine/bus.h>
45 #include <machine/resource.h>
50 #include <net/if_arp.h>
51 #include <net/ethernet.h>
52 #include <net/if_dl.h>
53 #include <net/if_media.h>
54 #include <net/if_types.h>
57 #include <netinet/in.h>
58 #include <netinet/in_systm.h>
59 #include <netinet/in_var.h>
60 #include <netinet/if_ether.h>
61 #include <netinet/ip.h>
64 #include <net80211/ieee80211_var.h>
65 #include <net80211/ieee80211_regdomain.h>
66 #include <net80211/ieee80211_radiotap.h>
67 #include <net80211/ieee80211_ratectl.h>
69 #include <dev/usb/usb.h>
70 #include <dev/usb/usbdi.h>
73 #define USB_DEBUG_VAR rum_debug
74 #include <dev/usb/usb_debug.h>
76 #include <dev/usb/wlan/if_rumreg.h>
77 #include <dev/usb/wlan/if_rumvar.h>
78 #include <dev/usb/wlan/if_rumfw.h>
81 static int rum_debug = 0;
83 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
84 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0,
88 static const STRUCT_USB_HOST_ID rum_devs[] = {
89 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
90 RUM_DEV(ABOCOM, HWU54DM),
91 RUM_DEV(ABOCOM, RT2573_2),
92 RUM_DEV(ABOCOM, RT2573_3),
93 RUM_DEV(ABOCOM, RT2573_4),
94 RUM_DEV(ABOCOM, WUG2700),
95 RUM_DEV(AMIT, CGWLUSB2GO),
96 RUM_DEV(ASUS, RT2573_1),
97 RUM_DEV(ASUS, RT2573_2),
98 RUM_DEV(BELKIN, F5D7050A),
99 RUM_DEV(BELKIN, F5D9050V3),
100 RUM_DEV(CISCOLINKSYS, WUSB54GC),
101 RUM_DEV(CISCOLINKSYS, WUSB54GR),
102 RUM_DEV(CONCEPTRONIC2, C54RU2),
103 RUM_DEV(COREGA, CGWLUSB2GL),
104 RUM_DEV(COREGA, CGWLUSB2GPX),
105 RUM_DEV(DICKSMITH, CWD854F),
106 RUM_DEV(DICKSMITH, RT2573),
107 RUM_DEV(EDIMAX, EW7318USG),
108 RUM_DEV(DLINK2, DWLG122C1),
109 RUM_DEV(DLINK2, WUA1340),
110 RUM_DEV(DLINK2, DWA111),
111 RUM_DEV(DLINK2, DWA110),
112 RUM_DEV(GIGABYTE, GNWB01GS),
113 RUM_DEV(GIGABYTE, GNWI05GS),
114 RUM_DEV(GIGASET, RT2573),
115 RUM_DEV(GOODWAY, RT2573),
116 RUM_DEV(GUILLEMOT, HWGUSB254LB),
117 RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
118 RUM_DEV(HUAWEI3COM, WUB320G),
119 RUM_DEV(MELCO, G54HP),
120 RUM_DEV(MELCO, SG54HP),
121 RUM_DEV(MELCO, WLIUCG),
122 RUM_DEV(MELCO, WLRUCG),
123 RUM_DEV(MELCO, WLRUCGAOSS),
124 RUM_DEV(MSI, RT2573_1),
125 RUM_DEV(MSI, RT2573_2),
126 RUM_DEV(MSI, RT2573_3),
127 RUM_DEV(MSI, RT2573_4),
128 RUM_DEV(NOVATECH, RT2573),
129 RUM_DEV(PLANEX2, GWUS54HP),
130 RUM_DEV(PLANEX2, GWUS54MINI2),
131 RUM_DEV(PLANEX2, GWUSMM),
132 RUM_DEV(QCOM, RT2573),
133 RUM_DEV(QCOM, RT2573_2),
134 RUM_DEV(QCOM, RT2573_3),
135 RUM_DEV(RALINK, RT2573),
136 RUM_DEV(RALINK, RT2573_2),
137 RUM_DEV(RALINK, RT2671),
138 RUM_DEV(SITECOMEU, WL113R2),
139 RUM_DEV(SITECOMEU, WL172),
140 RUM_DEV(SPARKLAN, RT2573),
141 RUM_DEV(SURECOM, RT2573),
145 static device_probe_t rum_match;
146 static device_attach_t rum_attach;
147 static device_detach_t rum_detach;
149 static usb_callback_t rum_bulk_read_callback;
150 static usb_callback_t rum_bulk_write_callback;
152 static usb_error_t rum_do_request(struct rum_softc *sc,
153 struct usb_device_request *req, void *data);
154 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
155 const char [IFNAMSIZ], int, enum ieee80211_opmode,
156 int, const uint8_t [IEEE80211_ADDR_LEN],
157 const uint8_t [IEEE80211_ADDR_LEN]);
158 static void rum_vap_delete(struct ieee80211vap *);
159 static void rum_tx_free(struct rum_tx_data *, int);
160 static void rum_setup_tx_list(struct rum_softc *);
161 static void rum_unsetup_tx_list(struct rum_softc *);
162 static int rum_newstate(struct ieee80211vap *,
163 enum ieee80211_state, int);
164 static void rum_setup_tx_desc(struct rum_softc *,
165 struct rum_tx_desc *, uint32_t, uint16_t, int,
167 static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
168 struct ieee80211_node *);
169 static int rum_tx_raw(struct rum_softc *, struct mbuf *,
170 struct ieee80211_node *,
171 const struct ieee80211_bpf_params *);
172 static int rum_tx_data(struct rum_softc *, struct mbuf *,
173 struct ieee80211_node *);
174 static void rum_start(struct ifnet *);
175 static int rum_ioctl(struct ifnet *, u_long, caddr_t);
176 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
178 static uint32_t rum_read(struct rum_softc *, uint16_t);
179 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
181 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
182 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *,
184 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
185 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
186 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
187 static void rum_select_antenna(struct rum_softc *);
188 static void rum_enable_mrr(struct rum_softc *);
189 static void rum_set_txpreamble(struct rum_softc *);
190 static void rum_set_basicrates(struct rum_softc *);
191 static void rum_select_band(struct rum_softc *,
192 struct ieee80211_channel *);
193 static void rum_set_chan(struct rum_softc *,
194 struct ieee80211_channel *);
195 static void rum_enable_tsf_sync(struct rum_softc *);
196 static void rum_enable_tsf(struct rum_softc *);
197 static void rum_update_slot(struct ifnet *);
198 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
199 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
200 static void rum_update_mcast(struct ifnet *);
201 static void rum_update_promisc(struct ifnet *);
202 static void rum_setpromisc(struct rum_softc *);
203 static const char *rum_get_rf(int);
204 static void rum_read_eeprom(struct rum_softc *);
205 static int rum_bbp_init(struct rum_softc *);
206 static void rum_init_locked(struct rum_softc *);
207 static void rum_init(void *);
208 static void rum_stop(struct rum_softc *);
209 static void rum_load_microcode(struct rum_softc *, const uint8_t *,
211 static void rum_prepare_beacon(struct rum_softc *,
212 struct ieee80211vap *);
213 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
214 const struct ieee80211_bpf_params *);
215 static void rum_scan_start(struct ieee80211com *);
216 static void rum_scan_end(struct ieee80211com *);
217 static void rum_set_channel(struct ieee80211com *);
218 static int rum_get_rssi(struct rum_softc *, uint8_t);
219 static void rum_ratectl_start(struct rum_softc *,
220 struct ieee80211_node *);
221 static void rum_ratectl_timeout(void *);
222 static void rum_ratectl_task(void *, int);
223 static int rum_pause(struct rum_softc *, int);
225 static const struct {
229 { RT2573_TXRX_CSR0, 0x025fb032 },
230 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
231 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
232 { RT2573_TXRX_CSR3, 0x00858687 },
233 { RT2573_TXRX_CSR7, 0x2e31353b },
234 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
235 { RT2573_TXRX_CSR15, 0x0000000f },
236 { RT2573_MAC_CSR6, 0x00000fff },
237 { RT2573_MAC_CSR8, 0x016c030a },
238 { RT2573_MAC_CSR10, 0x00000718 },
239 { RT2573_MAC_CSR12, 0x00000004 },
240 { RT2573_MAC_CSR13, 0x00007f00 },
241 { RT2573_SEC_CSR0, 0x00000000 },
242 { RT2573_SEC_CSR1, 0x00000000 },
243 { RT2573_SEC_CSR5, 0x00000000 },
244 { RT2573_PHY_CSR1, 0x000023b0 },
245 { RT2573_PHY_CSR5, 0x00040a06 },
246 { RT2573_PHY_CSR6, 0x00080606 },
247 { RT2573_PHY_CSR7, 0x00000408 },
248 { RT2573_AIFSN_CSR, 0x00002273 },
249 { RT2573_CWMIN_CSR, 0x00002344 },
250 { RT2573_CWMAX_CSR, 0x000034aa }
253 static const struct {
285 static const struct rfprog {
287 uint32_t r1, r2, r3, r4;
289 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
290 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
291 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
292 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
293 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
294 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
295 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
296 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
297 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
298 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
299 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
300 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
301 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
302 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
304 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
305 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
306 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
307 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
309 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
310 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
311 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
312 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
313 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
314 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
315 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
316 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
318 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
319 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
320 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
321 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
322 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
323 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
324 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
325 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
326 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
327 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
328 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
330 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
331 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
332 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
333 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
334 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
336 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
337 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
338 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
339 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
340 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
341 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
342 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
343 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
344 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
345 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
346 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
347 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
348 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
349 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
351 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
352 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
353 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
354 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
356 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
357 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
358 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
359 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
360 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
361 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
362 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
363 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
365 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
366 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
367 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
368 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
369 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
370 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
371 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
372 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
373 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
374 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
375 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
377 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
378 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
379 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
380 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
381 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
384 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
387 .endpoint = UE_ADDR_ANY,
388 .direction = UE_DIR_OUT,
389 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
390 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
391 .callback = rum_bulk_write_callback,
392 .timeout = 5000, /* ms */
396 .endpoint = UE_ADDR_ANY,
397 .direction = UE_DIR_IN,
398 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
399 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
400 .callback = rum_bulk_read_callback,
405 rum_match(device_t self)
407 struct usb_attach_arg *uaa = device_get_ivars(self);
409 if (uaa->usb_mode != USB_MODE_HOST)
411 if (uaa->info.bConfigIndex != 0)
413 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
416 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
420 rum_attach(device_t self)
422 struct usb_attach_arg *uaa = device_get_ivars(self);
423 struct rum_softc *sc = device_get_softc(self);
424 struct ieee80211com *ic;
426 uint8_t iface_index, bands;
430 device_set_usb_desc(self);
431 sc->sc_udev = uaa->device;
434 mtx_init(&sc->sc_mtx, device_get_nameunit(self),
435 MTX_NETWORK_LOCK, MTX_DEF);
437 iface_index = RT2573_IFACE_INDEX;
438 error = usbd_transfer_setup(uaa->device, &iface_index,
439 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
441 device_printf(self, "could not allocate USB transfers, "
442 "err=%s\n", usbd_errstr(error));
447 /* retrieve RT2573 rev. no */
448 for (ntries = 0; ntries < 100; ntries++) {
449 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
451 if (rum_pause(sc, hz / 100))
455 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
460 /* retrieve MAC address and various other things from EEPROM */
463 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
464 tmp, rum_get_rf(sc->rf_rev));
466 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
469 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
471 device_printf(sc->sc_dev, "can not if_alloc()\n");
477 if_initname(ifp, "rum", device_get_unit(sc->sc_dev));
478 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
479 ifp->if_init = rum_init;
480 ifp->if_ioctl = rum_ioctl;
481 ifp->if_start = rum_start;
482 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
483 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
484 IFQ_SET_READY(&ifp->if_snd);
487 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
489 /* set device capabilities */
491 IEEE80211_C_STA /* station mode supported */
492 | IEEE80211_C_IBSS /* IBSS mode supported */
493 | IEEE80211_C_MONITOR /* monitor mode supported */
494 | IEEE80211_C_HOSTAP /* HostAp mode supported */
495 | IEEE80211_C_TXPMGT /* tx power management */
496 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
497 | IEEE80211_C_SHSLOT /* short slot time supported */
498 | IEEE80211_C_BGSCAN /* bg scanning supported */
499 | IEEE80211_C_WPA /* 802.11i */
503 setbit(&bands, IEEE80211_MODE_11B);
504 setbit(&bands, IEEE80211_MODE_11G);
505 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226)
506 setbit(&bands, IEEE80211_MODE_11A);
507 ieee80211_init_channels(ic, NULL, &bands);
509 ieee80211_ifattach(ic, sc->sc_bssid);
510 ic->ic_update_promisc = rum_update_promisc;
511 ic->ic_raw_xmit = rum_raw_xmit;
512 ic->ic_scan_start = rum_scan_start;
513 ic->ic_scan_end = rum_scan_end;
514 ic->ic_set_channel = rum_set_channel;
516 ic->ic_vap_create = rum_vap_create;
517 ic->ic_vap_delete = rum_vap_delete;
518 ic->ic_update_mcast = rum_update_mcast;
520 ieee80211_radiotap_attach(ic,
521 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
522 RT2573_TX_RADIOTAP_PRESENT,
523 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
524 RT2573_RX_RADIOTAP_PRESENT);
527 ieee80211_announce(ic);
533 return (ENXIO); /* failure */
537 rum_detach(device_t self)
539 struct rum_softc *sc = device_get_softc(self);
540 struct ifnet *ifp = sc->sc_ifp;
541 struct ieee80211com *ic;
543 /* stop all USB transfers */
544 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
546 /* free TX list, if any */
548 rum_unsetup_tx_list(sc);
553 ieee80211_ifdetach(ic);
556 mtx_destroy(&sc->sc_mtx);
562 rum_do_request(struct rum_softc *sc,
563 struct usb_device_request *req, void *data)
569 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
570 req, data, 0, NULL, 250 /* ms */);
574 DPRINTFN(1, "Control request failed, %s (retrying)\n",
576 if (rum_pause(sc, hz / 100))
582 static struct ieee80211vap *
583 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
584 enum ieee80211_opmode opmode, int flags,
585 const uint8_t bssid[IEEE80211_ADDR_LEN],
586 const uint8_t mac[IEEE80211_ADDR_LEN])
588 struct rum_softc *sc = ic->ic_ifp->if_softc;
590 struct ieee80211vap *vap;
592 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
594 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap),
595 M_80211_VAP, M_WAITOK | M_ZERO);
599 /* enable s/w bmiss handling for sta mode */
600 ieee80211_vap_setup(ic, vap, name, unit, opmode,
601 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
603 /* override state transition machine */
604 rvp->newstate = vap->iv_newstate;
605 vap->iv_newstate = rum_newstate;
607 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
608 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
609 ieee80211_ratectl_init(vap);
610 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
612 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
613 ic->ic_opmode = opmode;
618 rum_vap_delete(struct ieee80211vap *vap)
620 struct rum_vap *rvp = RUM_VAP(vap);
621 struct ieee80211com *ic = vap->iv_ic;
623 usb_callout_drain(&rvp->ratectl_ch);
624 ieee80211_draintask(ic, &rvp->ratectl_task);
625 ieee80211_ratectl_deinit(vap);
626 ieee80211_vap_detach(vap);
627 free(rvp, M_80211_VAP);
631 rum_tx_free(struct rum_tx_data *data, int txerr)
633 struct rum_softc *sc = data->sc;
635 if (data->m != NULL) {
636 if (data->m->m_flags & M_TXCB)
637 ieee80211_process_callback(data->ni, data->m,
638 txerr ? ETIMEDOUT : 0);
642 ieee80211_free_node(data->ni);
645 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
650 rum_setup_tx_list(struct rum_softc *sc)
652 struct rum_tx_data *data;
656 STAILQ_INIT(&sc->tx_q);
657 STAILQ_INIT(&sc->tx_free);
659 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
660 data = &sc->tx_data[i];
663 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
669 rum_unsetup_tx_list(struct rum_softc *sc)
671 struct rum_tx_data *data;
674 /* make sure any subsequent use of the queues will fail */
676 STAILQ_INIT(&sc->tx_q);
677 STAILQ_INIT(&sc->tx_free);
679 /* free up all node references and mbufs */
680 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
681 data = &sc->tx_data[i];
683 if (data->m != NULL) {
687 if (data->ni != NULL) {
688 ieee80211_free_node(data->ni);
695 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
697 struct rum_vap *rvp = RUM_VAP(vap);
698 struct ieee80211com *ic = vap->iv_ic;
699 struct rum_softc *sc = ic->ic_ifp->if_softc;
700 const struct ieee80211_txparam *tp;
701 enum ieee80211_state ostate;
702 struct ieee80211_node *ni;
705 ostate = vap->iv_state;
706 DPRINTF("%s -> %s\n",
707 ieee80211_state_name[ostate],
708 ieee80211_state_name[nstate]);
710 IEEE80211_UNLOCK(ic);
712 usb_callout_stop(&rvp->ratectl_ch);
715 case IEEE80211_S_INIT:
716 if (ostate == IEEE80211_S_RUN) {
717 /* abort TSF synchronization */
718 tmp = rum_read(sc, RT2573_TXRX_CSR9);
719 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
723 case IEEE80211_S_RUN:
724 ni = ieee80211_ref_node(vap->iv_bss);
726 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
727 rum_update_slot(ic->ic_ifp);
729 rum_set_txpreamble(sc);
730 rum_set_basicrates(sc);
731 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
732 rum_set_bssid(sc, sc->sc_bssid);
735 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
736 vap->iv_opmode == IEEE80211_M_IBSS)
737 rum_prepare_beacon(sc, vap);
739 if (vap->iv_opmode != IEEE80211_M_MONITOR)
740 rum_enable_tsf_sync(sc);
744 /* enable automatic rate adaptation */
745 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
746 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
747 rum_ratectl_start(sc, ni);
748 ieee80211_free_node(ni);
755 return (rvp->newstate(vap, nstate, arg));
759 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
761 struct rum_softc *sc = usbd_xfer_softc(xfer);
762 struct ifnet *ifp = sc->sc_ifp;
763 struct ieee80211vap *vap;
764 struct rum_tx_data *data;
766 struct usb_page_cache *pc;
770 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
772 switch (USB_GET_STATE(xfer)) {
773 case USB_ST_TRANSFERRED:
774 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
777 data = usbd_xfer_get_priv(xfer);
778 rum_tx_free(data, 0);
779 usbd_xfer_set_priv(xfer, NULL);
782 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
787 data = STAILQ_FIRST(&sc->tx_q);
789 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
792 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) {
793 DPRINTFN(0, "data overflow, %u bytes\n",
795 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
797 pc = usbd_xfer_get_frame(xfer, 0);
798 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
799 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
802 vap = data->ni->ni_vap;
803 if (ieee80211_radiotap_active_vap(vap)) {
804 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
807 tap->wt_rate = data->rate;
808 tap->wt_antenna = sc->tx_ant;
810 ieee80211_radiotap_tx(vap, m);
813 /* align end on a 4-bytes boundary */
814 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
818 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
819 m->m_pkthdr.len, len);
821 usbd_xfer_set_frame_len(xfer, 0, len);
822 usbd_xfer_set_priv(xfer, data);
824 usbd_transfer_submit(xfer);
832 DPRINTFN(11, "transfer error, %s\n",
836 data = usbd_xfer_get_priv(xfer);
838 rum_tx_free(data, error);
839 usbd_xfer_set_priv(xfer, NULL);
842 if (error != USB_ERR_CANCELLED) {
843 if (error == USB_ERR_TIMEOUT)
844 device_printf(sc->sc_dev, "device timeout\n");
847 * Try to clear stall first, also if other
848 * errors occur, hence clearing stall
849 * introduces a 50 ms delay:
851 usbd_xfer_set_stall(xfer);
859 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
861 struct rum_softc *sc = usbd_xfer_softc(xfer);
862 struct ifnet *ifp = sc->sc_ifp;
863 struct ieee80211com *ic = ifp->if_l2com;
864 struct ieee80211_node *ni;
865 struct mbuf *m = NULL;
866 struct usb_page_cache *pc;
871 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
873 switch (USB_GET_STATE(xfer)) {
874 case USB_ST_TRANSFERRED:
876 DPRINTFN(15, "rx done, actlen=%d\n", len);
878 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
879 DPRINTF("%s: xfer too short %d\n",
880 device_get_nameunit(sc->sc_dev), len);
885 len -= RT2573_RX_DESC_SIZE;
886 pc = usbd_xfer_get_frame(xfer, 0);
887 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
889 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
890 flags = le32toh(sc->sc_rx_desc.flags);
891 if (flags & RT2573_RX_CRC_ERROR) {
893 * This should not happen since we did not
894 * request to receive those frames when we
895 * filled RUM_TXRX_CSR2:
897 DPRINTFN(5, "PHY or CRC error\n");
902 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
904 DPRINTF("could not allocate mbuf\n");
908 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
909 mtod(m, uint8_t *), len);
912 m->m_pkthdr.rcvif = ifp;
913 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
915 if (ieee80211_radiotap_active(ic)) {
916 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
920 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
921 (flags & RT2573_RX_OFDM) ?
922 IEEE80211_T_OFDM : IEEE80211_T_CCK);
923 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
924 tap->wr_antnoise = RT2573_NOISE_FLOOR;
925 tap->wr_antenna = sc->rx_ant;
930 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
931 usbd_transfer_submit(xfer);
934 * At the end of a USB callback it is always safe to unlock
935 * the private mutex of a device! That is why we do the
936 * "ieee80211_input" here, and not some lines up!
940 ni = ieee80211_find_rxnode(ic,
941 mtod(m, struct ieee80211_frame_min *));
943 (void) ieee80211_input(ni, m, rssi,
945 ieee80211_free_node(ni);
947 (void) ieee80211_input_all(ic, m, rssi,
950 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
951 !IFQ_IS_EMPTY(&ifp->if_snd))
957 if (error != USB_ERR_CANCELLED) {
958 /* try to clear stall first */
959 usbd_xfer_set_stall(xfer);
967 rum_plcp_signal(int rate)
970 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
978 case 108: return 0xc;
980 /* CCK rates (NB: not IEEE std, device-specific) */
986 return 0xff; /* XXX unsupported/unknown rate */
990 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
991 uint32_t flags, uint16_t xflags, int len, int rate)
993 struct ifnet *ifp = sc->sc_ifp;
994 struct ieee80211com *ic = ifp->if_l2com;
995 uint16_t plcp_length;
998 desc->flags = htole32(flags);
999 desc->flags |= htole32(RT2573_TX_VALID);
1000 desc->flags |= htole32(len << 16);
1002 desc->xflags = htole16(xflags);
1004 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) |
1005 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10));
1007 /* setup PLCP fields */
1008 desc->plcp_signal = rum_plcp_signal(rate);
1009 desc->plcp_service = 4;
1011 len += IEEE80211_CRC_LEN;
1012 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1013 desc->flags |= htole32(RT2573_TX_OFDM);
1015 plcp_length = len & 0xfff;
1016 desc->plcp_length_hi = plcp_length >> 6;
1017 desc->plcp_length_lo = plcp_length & 0x3f;
1019 plcp_length = (16 * len + rate - 1) / rate;
1021 remainder = (16 * len) % 22;
1022 if (remainder != 0 && remainder < 7)
1023 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1025 desc->plcp_length_hi = plcp_length >> 8;
1026 desc->plcp_length_lo = plcp_length & 0xff;
1028 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1029 desc->plcp_signal |= 0x08;
1034 rum_sendprot(struct rum_softc *sc,
1035 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1037 struct ieee80211com *ic = ni->ni_ic;
1038 const struct ieee80211_frame *wh;
1039 struct rum_tx_data *data;
1041 int protrate, ackrate, pktlen, flags, isshort;
1044 RUM_LOCK_ASSERT(sc, MA_OWNED);
1045 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1046 ("protection %d", prot));
1048 wh = mtod(m, const struct ieee80211_frame *);
1049 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1051 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1052 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1054 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1055 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1056 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1057 flags = RT2573_TX_MORE_FRAG;
1058 if (prot == IEEE80211_PROT_RTSCTS) {
1059 /* NB: CTS is the same size as an ACK */
1060 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1061 flags |= RT2573_TX_NEED_ACK;
1062 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1064 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1066 if (mprot == NULL) {
1067 /* XXX stat + msg */
1070 data = STAILQ_FIRST(&sc->tx_free);
1071 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1075 data->ni = ieee80211_ref_node(ni);
1076 data->rate = protrate;
1077 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate);
1079 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1080 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1086 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1088 struct ieee80211vap *vap = ni->ni_vap;
1089 struct ifnet *ifp = sc->sc_ifp;
1090 struct ieee80211com *ic = ifp->if_l2com;
1091 struct rum_tx_data *data;
1092 struct ieee80211_frame *wh;
1093 const struct ieee80211_txparam *tp;
1094 struct ieee80211_key *k;
1098 RUM_LOCK_ASSERT(sc, MA_OWNED);
1100 data = STAILQ_FIRST(&sc->tx_free);
1101 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1104 wh = mtod(m0, struct ieee80211_frame *);
1105 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1106 k = ieee80211_crypto_encap(ni, m0);
1111 wh = mtod(m0, struct ieee80211_frame *);
1114 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1116 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1117 flags |= RT2573_TX_NEED_ACK;
1119 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1120 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1121 *(uint16_t *)wh->i_dur = htole16(dur);
1123 /* tell hardware to add timestamp for probe responses */
1125 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1126 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1127 flags |= RT2573_TX_TIMESTAMP;
1132 data->rate = tp->mgmtrate;
1134 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate);
1136 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1137 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1139 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1140 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1146 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1147 const struct ieee80211_bpf_params *params)
1149 struct ieee80211com *ic = ni->ni_ic;
1150 struct rum_tx_data *data;
1154 RUM_LOCK_ASSERT(sc, MA_OWNED);
1155 KASSERT(params != NULL, ("no raw xmit params"));
1157 rate = params->ibp_rate0;
1158 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1163 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1164 flags |= RT2573_TX_NEED_ACK;
1165 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1166 error = rum_sendprot(sc, m0, ni,
1167 params->ibp_flags & IEEE80211_BPF_RTS ?
1168 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1170 if (error || sc->tx_nfree == 0) {
1174 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1177 data = STAILQ_FIRST(&sc->tx_free);
1178 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1185 /* XXX need to setup descriptor ourself */
1186 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1188 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1189 m0->m_pkthdr.len, rate);
1191 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1192 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1198 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1200 struct ieee80211vap *vap = ni->ni_vap;
1201 struct ifnet *ifp = sc->sc_ifp;
1202 struct ieee80211com *ic = ifp->if_l2com;
1203 struct rum_tx_data *data;
1204 struct ieee80211_frame *wh;
1205 const struct ieee80211_txparam *tp;
1206 struct ieee80211_key *k;
1211 RUM_LOCK_ASSERT(sc, MA_OWNED);
1213 wh = mtod(m0, struct ieee80211_frame *);
1215 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1216 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1217 rate = tp->mcastrate;
1218 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1219 rate = tp->ucastrate;
1221 rate = ni->ni_txrate;
1223 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1224 k = ieee80211_crypto_encap(ni, m0);
1230 /* packet header may have moved, reset our local pointer */
1231 wh = mtod(m0, struct ieee80211_frame *);
1234 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1235 int prot = IEEE80211_PROT_NONE;
1236 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1237 prot = IEEE80211_PROT_RTSCTS;
1238 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1239 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1240 prot = ic->ic_protmode;
1241 if (prot != IEEE80211_PROT_NONE) {
1242 error = rum_sendprot(sc, m0, ni, prot, rate);
1243 if (error || sc->tx_nfree == 0) {
1247 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1251 data = STAILQ_FIRST(&sc->tx_free);
1252 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1259 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1260 flags |= RT2573_TX_NEED_ACK;
1261 flags |= RT2573_TX_MORE_FRAG;
1263 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1264 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1265 *(uint16_t *)wh->i_dur = htole16(dur);
1268 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1270 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1271 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1273 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1274 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1280 rum_start(struct ifnet *ifp)
1282 struct rum_softc *sc = ifp->if_softc;
1283 struct ieee80211_node *ni;
1287 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1292 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1295 if (sc->tx_nfree < RUM_TX_MINFREE) {
1296 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1297 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1300 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1301 if (rum_tx_data(sc, m, ni) != 0) {
1302 ieee80211_free_node(ni);
1311 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1313 struct rum_softc *sc = ifp->if_softc;
1314 struct ieee80211com *ic = ifp->if_l2com;
1315 struct ifreq *ifr = (struct ifreq *) data;
1316 int error = 0, startall = 0;
1321 if (ifp->if_flags & IFF_UP) {
1322 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1323 rum_init_locked(sc);
1328 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1333 ieee80211_start_all(ic);
1336 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1339 error = ether_ioctl(ifp, cmd, data);
1349 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1351 struct usb_device_request req;
1354 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1355 req.bRequest = RT2573_READ_EEPROM;
1356 USETW(req.wValue, 0);
1357 USETW(req.wIndex, addr);
1358 USETW(req.wLength, len);
1360 error = rum_do_request(sc, &req, buf);
1362 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1363 usbd_errstr(error));
1368 rum_read(struct rum_softc *sc, uint16_t reg)
1372 rum_read_multi(sc, reg, &val, sizeof val);
1374 return le32toh(val);
1378 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1380 struct usb_device_request req;
1383 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1384 req.bRequest = RT2573_READ_MULTI_MAC;
1385 USETW(req.wValue, 0);
1386 USETW(req.wIndex, reg);
1387 USETW(req.wLength, len);
1389 error = rum_do_request(sc, &req, buf);
1391 device_printf(sc->sc_dev,
1392 "could not multi read MAC register: %s\n",
1393 usbd_errstr(error));
1398 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1400 uint32_t tmp = htole32(val);
1402 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1406 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1408 struct usb_device_request req;
1412 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1413 req.bRequest = RT2573_WRITE_MULTI_MAC;
1414 USETW(req.wValue, 0);
1416 /* write at most 64 bytes at a time */
1417 for (offset = 0; offset < len; offset += 64) {
1418 USETW(req.wIndex, reg + offset);
1419 USETW(req.wLength, MIN(len - offset, 64));
1421 error = rum_do_request(sc, &req, (char *)buf + offset);
1423 device_printf(sc->sc_dev,
1424 "could not multi write MAC register: %s\n",
1425 usbd_errstr(error));
1430 return (USB_ERR_NORMAL_COMPLETION);
1434 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1439 DPRINTFN(2, "reg=0x%08x\n", reg);
1441 for (ntries = 0; ntries < 100; ntries++) {
1442 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1444 if (rum_pause(sc, hz / 100))
1447 if (ntries == 100) {
1448 device_printf(sc->sc_dev, "could not write to BBP\n");
1452 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1453 rum_write(sc, RT2573_PHY_CSR3, tmp);
1457 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1462 DPRINTFN(2, "reg=0x%08x\n", reg);
1464 for (ntries = 0; ntries < 100; ntries++) {
1465 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1467 if (rum_pause(sc, hz / 100))
1470 if (ntries == 100) {
1471 device_printf(sc->sc_dev, "could not read BBP\n");
1475 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1476 rum_write(sc, RT2573_PHY_CSR3, val);
1478 for (ntries = 0; ntries < 100; ntries++) {
1479 val = rum_read(sc, RT2573_PHY_CSR3);
1480 if (!(val & RT2573_BBP_BUSY))
1482 if (rum_pause(sc, hz / 100))
1486 device_printf(sc->sc_dev, "could not read BBP\n");
1491 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1496 for (ntries = 0; ntries < 100; ntries++) {
1497 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1499 if (rum_pause(sc, hz / 100))
1502 if (ntries == 100) {
1503 device_printf(sc->sc_dev, "could not write to RF\n");
1507 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1509 rum_write(sc, RT2573_PHY_CSR4, tmp);
1511 /* remember last written value in sc */
1512 sc->rf_regs[reg] = val;
1514 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1518 rum_select_antenna(struct rum_softc *sc)
1520 uint8_t bbp4, bbp77;
1523 bbp4 = rum_bbp_read(sc, 4);
1524 bbp77 = rum_bbp_read(sc, 77);
1528 /* make sure Rx is disabled before switching antenna */
1529 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1530 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1532 rum_bbp_write(sc, 4, bbp4);
1533 rum_bbp_write(sc, 77, bbp77);
1535 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1539 * Enable multi-rate retries for frames sent at OFDM rates.
1540 * In 802.11b/g mode, allow fallback to CCK rates.
1543 rum_enable_mrr(struct rum_softc *sc)
1545 struct ifnet *ifp = sc->sc_ifp;
1546 struct ieee80211com *ic = ifp->if_l2com;
1549 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1551 tmp &= ~RT2573_MRR_CCK_FALLBACK;
1552 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan))
1553 tmp |= RT2573_MRR_CCK_FALLBACK;
1554 tmp |= RT2573_MRR_ENABLED;
1556 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1560 rum_set_txpreamble(struct rum_softc *sc)
1562 struct ifnet *ifp = sc->sc_ifp;
1563 struct ieee80211com *ic = ifp->if_l2com;
1566 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1568 tmp &= ~RT2573_SHORT_PREAMBLE;
1569 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1570 tmp |= RT2573_SHORT_PREAMBLE;
1572 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1576 rum_set_basicrates(struct rum_softc *sc)
1578 struct ifnet *ifp = sc->sc_ifp;
1579 struct ieee80211com *ic = ifp->if_l2com;
1581 /* update basic rate set */
1582 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1583 /* 11b basic rates: 1, 2Mbps */
1584 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
1585 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
1586 /* 11a basic rates: 6, 12, 24Mbps */
1587 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
1589 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
1590 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
1595 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
1599 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
1601 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1604 /* update all BBP registers that depend on the band */
1605 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1606 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
1607 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1608 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1609 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
1611 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1612 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1613 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1617 rum_bbp_write(sc, 17, bbp17);
1618 rum_bbp_write(sc, 96, bbp96);
1619 rum_bbp_write(sc, 104, bbp104);
1621 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1622 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1623 rum_bbp_write(sc, 75, 0x80);
1624 rum_bbp_write(sc, 86, 0x80);
1625 rum_bbp_write(sc, 88, 0x80);
1628 rum_bbp_write(sc, 35, bbp35);
1629 rum_bbp_write(sc, 97, bbp97);
1630 rum_bbp_write(sc, 98, bbp98);
1632 tmp = rum_read(sc, RT2573_PHY_CSR0);
1633 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
1634 if (IEEE80211_IS_CHAN_2GHZ(c))
1635 tmp |= RT2573_PA_PE_2GHZ;
1637 tmp |= RT2573_PA_PE_5GHZ;
1638 rum_write(sc, RT2573_PHY_CSR0, tmp);
1642 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
1644 struct ifnet *ifp = sc->sc_ifp;
1645 struct ieee80211com *ic = ifp->if_l2com;
1646 const struct rfprog *rfprog;
1647 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
1651 chan = ieee80211_chan2ieee(ic, c);
1652 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1655 /* select the appropriate RF settings based on what EEPROM says */
1656 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
1657 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
1659 /* find the settings for this channel (we know it exists) */
1660 for (i = 0; rfprog[i].chan != chan; i++);
1662 power = sc->txpow[i];
1666 } else if (power > 31) {
1667 bbp94 += power - 31;
1672 * If we are switching from the 2GHz band to the 5GHz band or
1673 * vice-versa, BBP registers need to be reprogrammed.
1675 if (c->ic_flags != ic->ic_curchan->ic_flags) {
1676 rum_select_band(sc, c);
1677 rum_select_antenna(sc);
1681 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1682 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1683 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1684 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1686 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1687 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1688 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
1689 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1691 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1692 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1693 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1694 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1696 rum_pause(sc, hz / 100);
1698 /* enable smart mode for MIMO-capable RFs */
1699 bbp3 = rum_bbp_read(sc, 3);
1701 bbp3 &= ~RT2573_SMART_MODE;
1702 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
1703 bbp3 |= RT2573_SMART_MODE;
1705 rum_bbp_write(sc, 3, bbp3);
1707 if (bbp94 != RT2573_BBPR94_DEFAULT)
1708 rum_bbp_write(sc, 94, bbp94);
1710 /* give the chip some extra time to do the switchover */
1711 rum_pause(sc, hz / 100);
1715 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
1716 * and HostAP operating modes.
1719 rum_enable_tsf_sync(struct rum_softc *sc)
1721 struct ifnet *ifp = sc->sc_ifp;
1722 struct ieee80211com *ic = ifp->if_l2com;
1723 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1726 if (vap->iv_opmode != IEEE80211_M_STA) {
1728 * Change default 16ms TBTT adjustment to 8ms.
1729 * Must be done before enabling beacon generation.
1731 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
1734 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
1736 /* set beacon interval (in 1/16ms unit) */
1737 tmp |= vap->iv_bss->ni_intval * 16;
1739 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
1740 if (vap->iv_opmode == IEEE80211_M_STA)
1741 tmp |= RT2573_TSF_MODE(1);
1743 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
1745 rum_write(sc, RT2573_TXRX_CSR9, tmp);
1749 rum_enable_tsf(struct rum_softc *sc)
1751 rum_write(sc, RT2573_TXRX_CSR9,
1752 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) |
1753 RT2573_TSF_TICKING | RT2573_TSF_MODE(2));
1757 rum_update_slot(struct ifnet *ifp)
1759 struct rum_softc *sc = ifp->if_softc;
1760 struct ieee80211com *ic = ifp->if_l2com;
1764 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1766 tmp = rum_read(sc, RT2573_MAC_CSR9);
1767 tmp = (tmp & ~0xff) | slottime;
1768 rum_write(sc, RT2573_MAC_CSR9, tmp);
1770 DPRINTF("setting slot time to %uus\n", slottime);
1774 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
1778 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
1779 rum_write(sc, RT2573_MAC_CSR4, tmp);
1781 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
1782 rum_write(sc, RT2573_MAC_CSR5, tmp);
1786 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
1790 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
1791 rum_write(sc, RT2573_MAC_CSR2, tmp);
1793 tmp = addr[4] | addr[5] << 8 | 0xff << 16;
1794 rum_write(sc, RT2573_MAC_CSR3, tmp);
1798 rum_setpromisc(struct rum_softc *sc)
1800 struct ifnet *ifp = sc->sc_ifp;
1803 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1805 tmp &= ~RT2573_DROP_NOT_TO_ME;
1806 if (!(ifp->if_flags & IFF_PROMISC))
1807 tmp |= RT2573_DROP_NOT_TO_ME;
1809 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1811 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1812 "entering" : "leaving");
1816 rum_update_promisc(struct ifnet *ifp)
1818 struct rum_softc *sc = ifp->if_softc;
1820 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1829 rum_update_mcast(struct ifnet *ifp)
1831 static int warning_printed;
1833 if (warning_printed == 0) {
1834 if_printf(ifp, "need to implement %s\n", __func__);
1835 warning_printed = 1;
1843 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
1844 case RT2573_RF_2528: return "RT2528";
1845 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
1846 case RT2573_RF_5226: return "RT5226";
1847 default: return "unknown";
1852 rum_read_eeprom(struct rum_softc *sc)
1859 /* read MAC address */
1860 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6);
1862 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
1864 sc->rf_rev = (val >> 11) & 0x1f;
1865 sc->hw_radio = (val >> 10) & 0x1;
1866 sc->rx_ant = (val >> 4) & 0x3;
1867 sc->tx_ant = (val >> 2) & 0x3;
1868 sc->nb_ant = val & 0x3;
1870 DPRINTF("RF revision=%d\n", sc->rf_rev);
1872 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
1874 sc->ext_5ghz_lna = (val >> 6) & 0x1;
1875 sc->ext_2ghz_lna = (val >> 4) & 0x1;
1877 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
1878 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
1880 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
1882 if ((val & 0xff) != 0xff)
1883 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
1885 /* Only [-10, 10] is valid */
1886 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
1887 sc->rssi_2ghz_corr = 0;
1889 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
1891 if ((val & 0xff) != 0xff)
1892 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
1894 /* Only [-10, 10] is valid */
1895 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
1896 sc->rssi_5ghz_corr = 0;
1898 if (sc->ext_2ghz_lna)
1899 sc->rssi_2ghz_corr -= 14;
1900 if (sc->ext_5ghz_lna)
1901 sc->rssi_5ghz_corr -= 14;
1903 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
1904 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
1906 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
1908 if ((val & 0xff) != 0xff)
1909 sc->rffreq = val & 0xff;
1911 DPRINTF("RF freq=%d\n", sc->rffreq);
1913 /* read Tx power for all a/b/g channels */
1914 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
1915 /* XXX default Tx power for 802.11a channels */
1916 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
1918 for (i = 0; i < 14; i++)
1919 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]);
1922 /* read default values for BBP registers */
1923 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1925 for (i = 0; i < 14; i++) {
1926 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1928 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
1929 sc->bbp_prom[i].val);
1935 rum_bbp_init(struct rum_softc *sc)
1937 #define N(a) (sizeof (a) / sizeof ((a)[0]))
1940 /* wait for BBP to be ready */
1941 for (ntries = 0; ntries < 100; ntries++) {
1942 const uint8_t val = rum_bbp_read(sc, 0);
1943 if (val != 0 && val != 0xff)
1945 if (rum_pause(sc, hz / 100))
1948 if (ntries == 100) {
1949 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
1953 /* initialize BBP registers to default values */
1954 for (i = 0; i < N(rum_def_bbp); i++)
1955 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
1957 /* write vendor-specific BBP values (from EEPROM) */
1958 for (i = 0; i < 16; i++) {
1959 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1961 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1969 rum_init_locked(struct rum_softc *sc)
1971 #define N(a) (sizeof (a) / sizeof ((a)[0]))
1972 struct ifnet *ifp = sc->sc_ifp;
1973 struct ieee80211com *ic = ifp->if_l2com;
1978 RUM_LOCK_ASSERT(sc, MA_OWNED);
1982 /* initialize MAC registers to default values */
1983 for (i = 0; i < N(rum_def_mac); i++)
1984 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
1986 /* set host ready */
1987 rum_write(sc, RT2573_MAC_CSR1, 3);
1988 rum_write(sc, RT2573_MAC_CSR1, 0);
1990 /* wait for BBP/RF to wakeup */
1991 for (ntries = 0; ntries < 100; ntries++) {
1992 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
1994 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
1995 if (rum_pause(sc, hz / 100))
1998 if (ntries == 100) {
1999 device_printf(sc->sc_dev,
2000 "timeout waiting for BBP/RF to wakeup\n");
2004 if ((error = rum_bbp_init(sc)) != 0)
2007 /* select default channel */
2008 rum_select_band(sc, ic->ic_curchan);
2009 rum_select_antenna(sc);
2010 rum_set_chan(sc, ic->ic_curchan);
2012 /* clear STA registers */
2013 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2015 rum_set_macaddr(sc, IF_LLADDR(ifp));
2017 /* initialize ASIC */
2018 rum_write(sc, RT2573_MAC_CSR1, 4);
2021 * Allocate Tx and Rx xfer queues.
2023 rum_setup_tx_list(sc);
2025 /* update Rx filter */
2026 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2028 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2029 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2030 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2032 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2033 tmp |= RT2573_DROP_TODS;
2034 if (!(ifp->if_flags & IFF_PROMISC))
2035 tmp |= RT2573_DROP_NOT_TO_ME;
2037 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2039 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2040 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2041 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2042 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2050 rum_init(void *priv)
2052 struct rum_softc *sc = priv;
2053 struct ifnet *ifp = sc->sc_ifp;
2054 struct ieee80211com *ic = ifp->if_l2com;
2057 rum_init_locked(sc);
2060 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2061 ieee80211_start_all(ic); /* start all vap's */
2065 rum_stop(struct rum_softc *sc)
2067 struct ifnet *ifp = sc->sc_ifp;
2070 RUM_LOCK_ASSERT(sc, MA_OWNED);
2072 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2077 * Drain the USB transfers, if not already drained:
2079 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2080 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2084 rum_unsetup_tx_list(sc);
2087 tmp = rum_read(sc, RT2573_TXRX_CSR0);
2088 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2091 rum_write(sc, RT2573_MAC_CSR1, 3);
2092 rum_write(sc, RT2573_MAC_CSR1, 0);
2096 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2098 struct usb_device_request req;
2099 uint16_t reg = RT2573_MCU_CODE_BASE;
2102 /* copy firmware image into NIC */
2103 for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2104 err = rum_write(sc, reg, UGETDW(ucode));
2106 /* firmware already loaded ? */
2107 device_printf(sc->sc_dev, "Firmware load "
2108 "failure! (ignored)\n");
2113 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2114 req.bRequest = RT2573_MCU_CNTL;
2115 USETW(req.wValue, RT2573_MCU_RUN);
2116 USETW(req.wIndex, 0);
2117 USETW(req.wLength, 0);
2119 err = rum_do_request(sc, &req, NULL);
2121 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2125 /* give the chip some time to boot */
2126 rum_pause(sc, hz / 8);
2130 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2132 struct ieee80211com *ic = vap->iv_ic;
2133 const struct ieee80211_txparam *tp;
2134 struct rum_tx_desc desc;
2137 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC)
2140 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo);
2145 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2146 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
2147 m0->m_pkthdr.len, tp->mgmtrate);
2149 /* copy the first 24 bytes of Tx descriptor into NIC memory */
2150 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2152 /* copy beacon header and payload into NIC memory */
2153 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
2160 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2161 const struct ieee80211_bpf_params *params)
2163 struct ifnet *ifp = ni->ni_ic->ic_ifp;
2164 struct rum_softc *sc = ifp->if_softc;
2167 /* prevent management frames from being sent if we're not ready */
2168 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2171 ieee80211_free_node(ni);
2174 if (sc->tx_nfree < RUM_TX_MINFREE) {
2175 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2178 ieee80211_free_node(ni);
2184 if (params == NULL) {
2186 * Legacy path; interpret frame contents to decide
2187 * precisely how to send the frame.
2189 if (rum_tx_mgt(sc, m, ni) != 0)
2193 * Caller supplied explicit parameters to use in
2194 * sending the frame.
2196 if (rum_tx_raw(sc, m, ni, params) != 0)
2205 ieee80211_free_node(ni);
2210 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
2212 struct ieee80211vap *vap = ni->ni_vap;
2213 struct rum_vap *rvp = RUM_VAP(vap);
2215 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
2216 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2218 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2222 rum_ratectl_timeout(void *arg)
2224 struct rum_vap *rvp = arg;
2225 struct ieee80211vap *vap = &rvp->vap;
2226 struct ieee80211com *ic = vap->iv_ic;
2228 ieee80211_runtask(ic, &rvp->ratectl_task);
2232 rum_ratectl_task(void *arg, int pending)
2234 struct rum_vap *rvp = arg;
2235 struct ieee80211vap *vap = &rvp->vap;
2236 struct ieee80211com *ic = vap->iv_ic;
2237 struct ifnet *ifp = ic->ic_ifp;
2238 struct rum_softc *sc = ifp->if_softc;
2239 struct ieee80211_node *ni;
2244 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */
2245 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
2247 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */
2248 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */
2249 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
2251 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail;
2253 ni = ieee80211_ref_node(vap->iv_bss);
2254 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt);
2255 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2256 ieee80211_free_node(ni);
2258 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */
2260 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2265 rum_scan_start(struct ieee80211com *ic)
2267 struct ifnet *ifp = ic->ic_ifp;
2268 struct rum_softc *sc = ifp->if_softc;
2272 /* abort TSF synchronization */
2273 tmp = rum_read(sc, RT2573_TXRX_CSR9);
2274 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
2275 rum_set_bssid(sc, ifp->if_broadcastaddr);
2281 rum_scan_end(struct ieee80211com *ic)
2283 struct rum_softc *sc = ic->ic_ifp->if_softc;
2286 rum_enable_tsf_sync(sc);
2287 rum_set_bssid(sc, sc->sc_bssid);
2293 rum_set_channel(struct ieee80211com *ic)
2295 struct rum_softc *sc = ic->ic_ifp->if_softc;
2298 rum_set_chan(sc, ic->ic_curchan);
2303 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
2305 struct ifnet *ifp = sc->sc_ifp;
2306 struct ieee80211com *ic = ifp->if_l2com;
2309 lna = (raw >> 5) & 0x3;
2316 * NB: Since RSSI is relative to noise floor, -1 is
2317 * adequate for caller to know error happened.
2322 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
2324 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2325 rssi += sc->rssi_2ghz_corr;
2334 rssi += sc->rssi_5ghz_corr;
2336 if (!sc->ext_5ghz_lna && lna != 1)
2350 rum_pause(struct rum_softc *sc, int timeout)
2353 usb_pause_mtx(&sc->sc_mtx, timeout);
2357 static device_method_t rum_methods[] = {
2358 /* Device interface */
2359 DEVMETHOD(device_probe, rum_match),
2360 DEVMETHOD(device_attach, rum_attach),
2361 DEVMETHOD(device_detach, rum_detach),
2366 static driver_t rum_driver = {
2368 .methods = rum_methods,
2369 .size = sizeof(struct rum_softc),
2372 static devclass_t rum_devclass;
2374 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);
2375 MODULE_DEPEND(rum, wlan, 1, 1, 1);
2376 MODULE_DEPEND(rum, usb, 1, 1, 1);
2377 MODULE_VERSION(rum, 1);