1 /* $FreeBSD$ */
2
3 /*-
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>
7 * Copyright (c) 2015 Andriy Voskoboinyk <avos@FreeBSD.org>
8 *
9 * Permission to use, copy, modify, and distribute this software for any
10 * purpose with or without fee is hereby granted, provided that the above
11 * copyright notice and this permission notice appear in all copies.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 */
21
22 #include <sys/cdefs.h>
23 __FBSDID("$FreeBSD$");
24
25 /*-
26 * Ralink Technology RT2501USB/RT2601USB chipset driver
27 * http://www.ralinktech.com.tw/
28 */
29
30 #include "opt_wlan.h"
31
32 #include <sys/param.h>
33 #include <sys/sockio.h>
34 #include <sys/sysctl.h>
35 #include <sys/lock.h>
36 #include <sys/mutex.h>
37 #include <sys/mbuf.h>
38 #include <sys/kernel.h>
39 #include <sys/socket.h>
40 #include <sys/systm.h>
41 #include <sys/malloc.h>
42 #include <sys/module.h>
43 #include <sys/bus.h>
44 #include <sys/endian.h>
45 #include <sys/kdb.h>
46
47 #include <net/bpf.h>
48 #include <net/if.h>
49 #include <net/if_var.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>
55
56 #ifdef INET
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>
62 #endif
63
64 #include <net80211/ieee80211_var.h>
65 #include <net80211/ieee80211_regdomain.h>
66 #include <net80211/ieee80211_radiotap.h>
67 #include <net80211/ieee80211_ratectl.h>
68
69 #include <dev/usb/usb.h>
70 #include <dev/usb/usbdi.h>
71 #include "usbdevs.h"
72
73 #define USB_DEBUG_VAR rum_debug
74 #include <dev/usb/usb_debug.h>
75
76 #include <dev/usb/wlan/if_rumreg.h>
77 #include <dev/usb/wlan/if_rumvar.h>
78 #include <dev/usb/wlan/if_rumfw.h>
79
80 #ifdef USB_DEBUG
81 static int rum_debug = 0;
82
83 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
84 "USB rum");
85 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0,
86 "Debug level");
87 #endif
88
89 static const STRUCT_USB_HOST_ID rum_devs[] = {
90 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
91 RUM_DEV(ABOCOM, HWU54DM),
92 RUM_DEV(ABOCOM, RT2573_2),
93 RUM_DEV(ABOCOM, RT2573_3),
94 RUM_DEV(ABOCOM, RT2573_4),
95 RUM_DEV(ABOCOM, WUG2700),
96 RUM_DEV(AMIT, CGWLUSB2GO),
97 RUM_DEV(ASUS, RT2573_1),
98 RUM_DEV(ASUS, RT2573_2),
99 RUM_DEV(BELKIN, F5D7050A),
100 RUM_DEV(BELKIN, F5D9050V3),
101 RUM_DEV(CISCOLINKSYS, WUSB54GC),
102 RUM_DEV(CISCOLINKSYS, WUSB54GR),
103 RUM_DEV(CONCEPTRONIC2, C54RU2),
104 RUM_DEV(COREGA, CGWLUSB2GL),
105 RUM_DEV(COREGA, CGWLUSB2GPX),
106 RUM_DEV(DICKSMITH, CWD854F),
107 RUM_DEV(DICKSMITH, RT2573),
108 RUM_DEV(EDIMAX, EW7318USG),
109 RUM_DEV(DLINK2, DWLG122C1),
110 RUM_DEV(DLINK2, WUA1340),
111 RUM_DEV(DLINK2, DWA111),
112 RUM_DEV(DLINK2, DWA110),
113 RUM_DEV(GIGABYTE, GNWB01GS),
114 RUM_DEV(GIGABYTE, GNWI05GS),
115 RUM_DEV(GIGASET, RT2573),
116 RUM_DEV(GOODWAY, RT2573),
117 RUM_DEV(GUILLEMOT, HWGUSB254LB),
118 RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
119 RUM_DEV(HUAWEI3COM, WUB320G),
120 RUM_DEV(MELCO, G54HP),
121 RUM_DEV(MELCO, SG54HP),
122 RUM_DEV(MELCO, SG54HG),
123 RUM_DEV(MELCO, WLIUCG),
124 RUM_DEV(MELCO, WLRUCG),
125 RUM_DEV(MELCO, WLRUCGAOSS),
126 RUM_DEV(MSI, RT2573_1),
127 RUM_DEV(MSI, RT2573_2),
128 RUM_DEV(MSI, RT2573_3),
129 RUM_DEV(MSI, RT2573_4),
130 RUM_DEV(NOVATECH, RT2573),
131 RUM_DEV(PLANEX2, GWUS54HP),
132 RUM_DEV(PLANEX2, GWUS54MINI2),
133 RUM_DEV(PLANEX2, GWUSMM),
134 RUM_DEV(QCOM, RT2573),
135 RUM_DEV(QCOM, RT2573_2),
136 RUM_DEV(QCOM, RT2573_3),
137 RUM_DEV(RALINK, RT2573),
138 RUM_DEV(RALINK, RT2573_2),
139 RUM_DEV(RALINK, RT2671),
140 RUM_DEV(SITECOMEU, WL113R2),
141 RUM_DEV(SITECOMEU, WL172),
142 RUM_DEV(SPARKLAN, RT2573),
143 RUM_DEV(SURECOM, RT2573),
144 #undef RUM_DEV
145 };
146
147 static device_probe_t rum_match;
148 static device_attach_t rum_attach;
149 static device_detach_t rum_detach;
150
151 static usb_callback_t rum_bulk_read_callback;
152 static usb_callback_t rum_bulk_write_callback;
153
154 static usb_error_t rum_do_request(struct rum_softc *sc,
155 struct usb_device_request *req, void *data);
156 static usb_error_t rum_do_mcu_request(struct rum_softc *sc, int);
157 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
158 const char [IFNAMSIZ], int, enum ieee80211_opmode,
159 int, const uint8_t [IEEE80211_ADDR_LEN],
160 const uint8_t [IEEE80211_ADDR_LEN]);
161 static void rum_vap_delete(struct ieee80211vap *);
162 static void rum_cmdq_cb(void *, int);
163 static int rum_cmd_sleepable(struct rum_softc *, const void *,
164 size_t, uint8_t, CMD_FUNC_PROTO);
165 static void rum_tx_free(struct rum_tx_data *, int);
166 static void rum_setup_tx_list(struct rum_softc *);
167 static void rum_reset_tx_list(struct rum_softc *,
168 struct ieee80211vap *);
169 static void rum_unsetup_tx_list(struct rum_softc *);
170 static void rum_beacon_miss(struct ieee80211vap *);
171 static void rum_sta_recv_mgmt(struct ieee80211_node *,
172 struct mbuf *, int,
173 const struct ieee80211_rx_stats *, int, int);
174 static int rum_set_power_state(struct rum_softc *, int);
175 static int rum_newstate(struct ieee80211vap *,
176 enum ieee80211_state, int);
177 static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int);
178 static void rum_setup_tx_desc(struct rum_softc *,
179 struct rum_tx_desc *, struct ieee80211_key *,
180 uint32_t, uint8_t, uint8_t, int, int, int);
181 static uint32_t rum_tx_crypto_flags(struct rum_softc *,
182 struct ieee80211_node *,
183 const struct ieee80211_key *);
184 static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
185 struct ieee80211_node *);
186 static int rum_tx_raw(struct rum_softc *, struct mbuf *,
187 struct ieee80211_node *,
188 const struct ieee80211_bpf_params *);
189 static int rum_tx_data(struct rum_softc *, struct mbuf *,
190 struct ieee80211_node *);
191 static int rum_transmit(struct ieee80211com *, struct mbuf *);
192 static void rum_start(struct rum_softc *);
193 static void rum_parent(struct ieee80211com *);
194 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
195 int);
196 static uint32_t rum_read(struct rum_softc *, uint16_t);
197 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
198 int);
199 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
200 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *,
201 size_t);
202 static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t);
203 static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t);
204 static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t,
205 uint32_t);
206 static int rum_bbp_busy(struct rum_softc *);
207 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
208 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
209 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
210 static void rum_select_antenna(struct rum_softc *);
211 static void rum_enable_mrr(struct rum_softc *);
212 static void rum_set_txpreamble(struct rum_softc *);
213 static void rum_set_basicrates(struct rum_softc *);
214 static void rum_select_band(struct rum_softc *,
215 struct ieee80211_channel *);
216 static void rum_set_chan(struct rum_softc *,
217 struct ieee80211_channel *);
218 static void rum_set_maxretry(struct rum_softc *,
219 struct ieee80211vap *);
220 static int rum_enable_tsf_sync(struct rum_softc *);
221 static void rum_enable_tsf(struct rum_softc *);
222 static void rum_abort_tsf_sync(struct rum_softc *);
223 static void rum_get_tsf(struct rum_softc *, uint64_t *);
224 static void rum_update_slot_cb(struct rum_softc *,
225 union sec_param *, uint8_t);
226 static void rum_update_slot(struct ieee80211com *);
227 static int rum_wme_update(struct ieee80211com *);
228 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
229 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
230 static void rum_update_mcast(struct ieee80211com *);
231 static void rum_update_promisc(struct ieee80211com *);
232 static void rum_setpromisc(struct rum_softc *);
233 static const char *rum_get_rf(int);
234 static void rum_read_eeprom(struct rum_softc *);
235 static int rum_bbp_wakeup(struct rum_softc *);
236 static int rum_bbp_init(struct rum_softc *);
237 static void rum_clr_shkey_regs(struct rum_softc *);
238 static int rum_init(struct rum_softc *);
239 static void rum_stop(struct rum_softc *);
240 static void rum_load_microcode(struct rum_softc *, const uint8_t *,
241 size_t);
242 static int rum_set_sleep_time(struct rum_softc *, uint16_t);
243 static int rum_reset(struct ieee80211vap *, u_long);
244 static int rum_set_beacon(struct rum_softc *,
245 struct ieee80211vap *);
246 static int rum_alloc_beacon(struct rum_softc *,
247 struct ieee80211vap *);
248 static void rum_update_beacon_cb(struct rum_softc *,
249 union sec_param *, uint8_t);
250 static void rum_update_beacon(struct ieee80211vap *, int);
251 static int rum_common_key_set(struct rum_softc *,
252 struct ieee80211_key *, uint16_t);
253 static void rum_group_key_set_cb(struct rum_softc *,
254 union sec_param *, uint8_t);
255 static void rum_group_key_del_cb(struct rum_softc *,
256 union sec_param *, uint8_t);
257 static void rum_pair_key_set_cb(struct rum_softc *,
258 union sec_param *, uint8_t);
259 static void rum_pair_key_del_cb(struct rum_softc *,
260 union sec_param *, uint8_t);
261 static int rum_key_alloc(struct ieee80211vap *,
262 struct ieee80211_key *, ieee80211_keyix *,
263 ieee80211_keyix *);
264 static int rum_key_set(struct ieee80211vap *,
265 const struct ieee80211_key *);
266 static int rum_key_delete(struct ieee80211vap *,
267 const struct ieee80211_key *);
268 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
269 const struct ieee80211_bpf_params *);
270 static void rum_scan_start(struct ieee80211com *);
271 static void rum_scan_end(struct ieee80211com *);
272 static void rum_set_channel(struct ieee80211com *);
273 static void rum_getradiocaps(struct ieee80211com *, int, int *,
274 struct ieee80211_channel[]);
275 static int rum_get_rssi(struct rum_softc *, uint8_t);
276 static void rum_ratectl_start(struct rum_softc *,
277 struct ieee80211_node *);
278 static void rum_ratectl_timeout(void *);
279 static void rum_ratectl_task(void *, int);
280 static int rum_pause(struct rum_softc *, int);
281
282 static const struct {
283 uint32_t reg;
284 uint32_t val;
285 } rum_def_mac[] = {
286 { RT2573_TXRX_CSR0, 0x025fb032 },
287 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
288 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
289 { RT2573_TXRX_CSR3, 0x00858687 },
290 { RT2573_TXRX_CSR7, 0x2e31353b },
291 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
292 { RT2573_TXRX_CSR15, 0x0000000f },
293 { RT2573_MAC_CSR6, 0x00000fff },
294 { RT2573_MAC_CSR8, 0x016c030a },
295 { RT2573_MAC_CSR10, 0x00000718 },
296 { RT2573_MAC_CSR12, 0x00000004 },
297 { RT2573_MAC_CSR13, 0x00007f00 },
298 { RT2573_SEC_CSR2, 0x00000000 },
299 { RT2573_SEC_CSR3, 0x00000000 },
300 { RT2573_SEC_CSR4, 0x00000000 },
301 { RT2573_PHY_CSR1, 0x000023b0 },
302 { RT2573_PHY_CSR5, 0x00040a06 },
303 { RT2573_PHY_CSR6, 0x00080606 },
304 { RT2573_PHY_CSR7, 0x00000408 },
305 { RT2573_AIFSN_CSR, 0x00002273 },
306 { RT2573_CWMIN_CSR, 0x00002344 },
307 { RT2573_CWMAX_CSR, 0x000034aa }
308 };
309
310 static const struct {
311 uint8_t reg;
312 uint8_t val;
313 } rum_def_bbp[] = {
314 { 3, 0x80 },
315 { 15, 0x30 },
316 { 17, 0x20 },
317 { 21, 0xc8 },
318 { 22, 0x38 },
319 { 23, 0x06 },
320 { 24, 0xfe },
321 { 25, 0x0a },
322 { 26, 0x0d },
323 { 32, 0x0b },
324 { 34, 0x12 },
325 { 37, 0x07 },
326 { 39, 0xf8 },
327 { 41, 0x60 },
328 { 53, 0x10 },
329 { 54, 0x18 },
330 { 60, 0x10 },
331 { 61, 0x04 },
332 { 62, 0x04 },
333 { 75, 0xfe },
334 { 86, 0xfe },
335 { 88, 0xfe },
336 { 90, 0x0f },
337 { 99, 0x00 },
338 { 102, 0x16 },
339 { 107, 0x04 }
340 };
341
342 static const uint8_t rum_chan_5ghz[] =
343 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64,
344 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
345 149, 153, 157, 161, 165 };
346
347 static const struct rfprog {
348 uint8_t chan;
349 uint32_t r1, r2, r3, r4;
350 } rum_rf5226[] = {
351 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
352 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
353 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
354 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
355 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
356 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
357 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
358 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
359 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
360 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
361 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
362 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
363 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
364 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
365
366 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
367 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
368 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
369 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
370
371 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
372 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
373 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
374 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
375 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
376 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
377 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
378 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
379
380 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
381 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
382 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
383 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
384 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
385 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
386 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
387 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
388 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
389 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
390 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
391
392 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
393 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
394 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
395 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
396 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
397 }, rum_rf5225[] = {
398 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
399 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
400 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
401 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
402 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
403 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
404 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
405 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
406 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
407 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
408 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
409 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
410 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
411 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
412
413 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
414 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
415 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
416 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
417
418 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
419 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
420 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
421 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
422 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
423 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
424 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
425 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
426
427 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
428 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
429 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
430 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
431 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
432 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
433 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
434 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
435 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
436 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
437 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
438
439 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
440 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
441 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
442 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
443 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
444 };
445
446 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
447 [RUM_BULK_WR] = {
448 .type = UE_BULK,
449 .endpoint = UE_ADDR_ANY,
450 .direction = UE_DIR_OUT,
451 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
452 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
453 .callback = rum_bulk_write_callback,
454 .timeout = 5000, /* ms */
455 },
456 [RUM_BULK_RD] = {
457 .type = UE_BULK,
458 .endpoint = UE_ADDR_ANY,
459 .direction = UE_DIR_IN,
460 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
461 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
462 .callback = rum_bulk_read_callback,
463 },
464 };
465
466 static int
467 rum_match(device_t self)
468 {
469 struct usb_attach_arg *uaa = device_get_ivars(self);
470
471 if (uaa->usb_mode != USB_MODE_HOST)
472 return (ENXIO);
473 if (uaa->info.bConfigIndex != 0)
474 return (ENXIO);
475 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
476 return (ENXIO);
477
478 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
479 }
480
481 static int
482 rum_attach(device_t self)
483 {
484 struct usb_attach_arg *uaa = device_get_ivars(self);
485 struct rum_softc *sc = device_get_softc(self);
486 struct ieee80211com *ic = &sc->sc_ic;
487 uint32_t tmp;
488 uint8_t iface_index;
489 int error, ntries;
490
491 device_set_usb_desc(self);
492 sc->sc_udev = uaa->device;
493 sc->sc_dev = self;
494
495 RUM_LOCK_INIT(sc);
496 RUM_CMDQ_LOCK_INIT(sc);
497 mbufq_init(&sc->sc_snd, ifqmaxlen);
498
499 iface_index = RT2573_IFACE_INDEX;
500 error = usbd_transfer_setup(uaa->device, &iface_index,
501 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
502 if (error) {
503 device_printf(self, "could not allocate USB transfers, "
504 "err=%s\n", usbd_errstr(error));
505 goto detach;
506 }
507
508 RUM_LOCK(sc);
509 /* retrieve RT2573 rev. no */
510 for (ntries = 0; ntries < 100; ntries++) {
511 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
512 break;
513 if (rum_pause(sc, hz / 100))
514 break;
515 }
516 if (ntries == 100) {
517 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
518 RUM_UNLOCK(sc);
519 goto detach;
520 }
521
522 /* retrieve MAC address and various other things from EEPROM */
523 rum_read_eeprom(sc);
524
525 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
526 tmp, rum_get_rf(sc->rf_rev));
527
528 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
529 RUM_UNLOCK(sc);
530
531 ic->ic_softc = sc;
532 ic->ic_name = device_get_nameunit(self);
533 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
534
535 /* set device capabilities */
536 ic->ic_caps =
537 IEEE80211_C_STA /* station mode supported */
538 | IEEE80211_C_IBSS /* IBSS mode supported */
539 | IEEE80211_C_MONITOR /* monitor mode supported */
540 | IEEE80211_C_HOSTAP /* HostAp mode supported */
541 | IEEE80211_C_AHDEMO /* adhoc demo mode */
542 | IEEE80211_C_TXPMGT /* tx power management */
543 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
544 | IEEE80211_C_SHSLOT /* short slot time supported */
545 | IEEE80211_C_BGSCAN /* bg scanning supported */
546 | IEEE80211_C_WPA /* 802.11i */
547 | IEEE80211_C_WME /* 802.11e */
548 | IEEE80211_C_PMGT /* Station-side power mgmt */
549 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */
550 ;
551
552 ic->ic_cryptocaps =
553 IEEE80211_CRYPTO_WEP |
554 IEEE80211_CRYPTO_AES_CCM |
555 IEEE80211_CRYPTO_TKIPMIC |
556 IEEE80211_CRYPTO_TKIP;
557
558 rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
559 ic->ic_channels);
560
561 ieee80211_ifattach(ic);
562 ic->ic_update_promisc = rum_update_promisc;
563 ic->ic_raw_xmit = rum_raw_xmit;
564 ic->ic_scan_start = rum_scan_start;
565 ic->ic_scan_end = rum_scan_end;
566 ic->ic_set_channel = rum_set_channel;
567 ic->ic_getradiocaps = rum_getradiocaps;
568 ic->ic_transmit = rum_transmit;
569 ic->ic_parent = rum_parent;
570 ic->ic_vap_create = rum_vap_create;
571 ic->ic_vap_delete = rum_vap_delete;
572 ic->ic_updateslot = rum_update_slot;
573 ic->ic_wme.wme_update = rum_wme_update;
574 ic->ic_update_mcast = rum_update_mcast;
575
576 ieee80211_radiotap_attach(ic,
577 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
578 RT2573_TX_RADIOTAP_PRESENT,
579 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
580 RT2573_RX_RADIOTAP_PRESENT);
581
582 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc);
583
584 if (bootverbose)
585 ieee80211_announce(ic);
586
587 return (0);
588
589 detach:
590 rum_detach(self);
591 return (ENXIO); /* failure */
592 }
593
594 static int
595 rum_detach(device_t self)
596 {
597 struct rum_softc *sc = device_get_softc(self);
598 struct ieee80211com *ic = &sc->sc_ic;
599
600 /* Prevent further ioctls */
601 RUM_LOCK(sc);
602 sc->sc_detached = 1;
603 RUM_UNLOCK(sc);
604
605 /* stop all USB transfers */
606 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
607
608 /* free TX list, if any */
609 RUM_LOCK(sc);
610 rum_unsetup_tx_list(sc);
611 RUM_UNLOCK(sc);
612
613 if (ic->ic_softc == sc) {
614 ieee80211_draintask(ic, &sc->cmdq_task);
615 ieee80211_ifdetach(ic);
616 }
617
618 mbufq_drain(&sc->sc_snd);
619 RUM_CMDQ_LOCK_DESTROY(sc);
620 RUM_LOCK_DESTROY(sc);
621
622 return (0);
623 }
624
625 static usb_error_t
626 rum_do_request(struct rum_softc *sc,
627 struct usb_device_request *req, void *data)
628 {
629 usb_error_t err;
630 int ntries = 10;
631
632 while (ntries--) {
633 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
634 req, data, 0, NULL, 250 /* ms */);
635 if (err == 0)
636 break;
637
638 DPRINTFN(1, "Control request failed, %s (retrying)\n",
639 usbd_errstr(err));
640 if (rum_pause(sc, hz / 100))
641 break;
642 }
643 return (err);
644 }
645
646 static usb_error_t
647 rum_do_mcu_request(struct rum_softc *sc, int request)
648 {
649 struct usb_device_request req;
650
651 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
652 req.bRequest = RT2573_MCU_CNTL;
653 USETW(req.wValue, request);
654 USETW(req.wIndex, 0);
655 USETW(req.wLength, 0);
656
657 return (rum_do_request(sc, &req, NULL));
658 }
659
660 static struct ieee80211vap *
661 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
662 enum ieee80211_opmode opmode, int flags,
663 const uint8_t bssid[IEEE80211_ADDR_LEN],
664 const uint8_t mac[IEEE80211_ADDR_LEN])
665 {
666 struct rum_softc *sc = ic->ic_softc;
667 struct rum_vap *rvp;
668 struct ieee80211vap *vap;
669
670 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
671 return NULL;
672 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO);
673 vap = &rvp->vap;
674 /* enable s/w bmiss handling for sta mode */
675
676 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
677 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
678 /* out of memory */
679 free(rvp, M_80211_VAP);
680 return (NULL);
681 }
682
683 /* override state transition machine */
684 rvp->newstate = vap->iv_newstate;
685 vap->iv_newstate = rum_newstate;
686 vap->iv_key_alloc = rum_key_alloc;
687 vap->iv_key_set = rum_key_set;
688 vap->iv_key_delete = rum_key_delete;
689 vap->iv_update_beacon = rum_update_beacon;
690 vap->iv_reset = rum_reset;
691 vap->iv_max_aid = RT2573_ADDR_MAX;
692
693 if (opmode == IEEE80211_M_STA) {
694 /*
695 * Move device to the sleep state when
696 * beacon is received and there is no data for us.
697 *
698 * Used only for IEEE80211_S_SLEEP state.
699 */
700 rvp->recv_mgmt = vap->iv_recv_mgmt;
701 vap->iv_recv_mgmt = rum_sta_recv_mgmt;
702
703 /* Ignored while sleeping. */
704 rvp->bmiss = vap->iv_bmiss;
705 vap->iv_bmiss = rum_beacon_miss;
706 }
707
708 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
709 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
710 ieee80211_ratectl_init(vap);
711 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
712 /* complete setup */
713 ieee80211_vap_attach(vap, ieee80211_media_change,
714 ieee80211_media_status, mac);
715 ic->ic_opmode = opmode;
716 return vap;
717 }
718
719 static void
720 rum_vap_delete(struct ieee80211vap *vap)
721 {
722 struct rum_vap *rvp = RUM_VAP(vap);
723 struct ieee80211com *ic = vap->iv_ic;
724 struct rum_softc *sc = ic->ic_softc;
725
726 /* Put vap into INIT state. */
727 ieee80211_new_state(vap, IEEE80211_S_INIT, -1);
728 ieee80211_draintask(ic, &vap->iv_nstate_task);
729
730 RUM_LOCK(sc);
731 /* Cancel any unfinished Tx. */
732 rum_reset_tx_list(sc, vap);
733 RUM_UNLOCK(sc);
734
735 usb_callout_drain(&rvp->ratectl_ch);
736 ieee80211_draintask(ic, &rvp->ratectl_task);
737 ieee80211_ratectl_deinit(vap);
738 ieee80211_vap_detach(vap);
739 m_freem(rvp->bcn_mbuf);
740 free(rvp, M_80211_VAP);
741 }
742
743 static void
744 rum_cmdq_cb(void *arg, int pending)
745 {
746 struct rum_softc *sc = arg;
747 struct rum_cmdq *rc;
748
749 RUM_CMDQ_LOCK(sc);
750 while (sc->cmdq[sc->cmdq_first].func != NULL) {
751 rc = &sc->cmdq[sc->cmdq_first];
752 RUM_CMDQ_UNLOCK(sc);
753
754 RUM_LOCK(sc);
755 rc->func(sc, &rc->data, rc->rvp_id);
756 RUM_UNLOCK(sc);
757
758 RUM_CMDQ_LOCK(sc);
759 memset(rc, 0, sizeof (*rc));
760 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE;
761 }
762 RUM_CMDQ_UNLOCK(sc);
763 }
764
765 static int
766 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len,
767 uint8_t rvp_id, CMD_FUNC_PROTO)
768 {
769 struct ieee80211com *ic = &sc->sc_ic;
770
771 KASSERT(len <= sizeof(union sec_param), ("buffer overflow"));
772
773 RUM_CMDQ_LOCK(sc);
774 if (sc->cmdq[sc->cmdq_last].func != NULL) {
775 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__);
776 RUM_CMDQ_UNLOCK(sc);
777
778 return EAGAIN;
779 }
780
781 if (ptr != NULL)
782 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len);
783 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id;
784 sc->cmdq[sc->cmdq_last].func = func;
785 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE;
786 RUM_CMDQ_UNLOCK(sc);
787
788 ieee80211_runtask(ic, &sc->cmdq_task);
789
790 return 0;
791 }
792
793 static void
794 rum_tx_free(struct rum_tx_data *data, int txerr)
795 {
796 struct rum_softc *sc = data->sc;
797
798 if (data->m != NULL) {
799 ieee80211_tx_complete(data->ni, data->m, txerr);
800 data->m = NULL;
801 data->ni = NULL;
802 }
803 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
804 sc->tx_nfree++;
805 }
806
807 static void
808 rum_setup_tx_list(struct rum_softc *sc)
809 {
810 struct rum_tx_data *data;
811 int i;
812
813 sc->tx_nfree = 0;
814 STAILQ_INIT(&sc->tx_q);
815 STAILQ_INIT(&sc->tx_free);
816
817 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
818 data = &sc->tx_data[i];
819
820 data->sc = sc;
821 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
822 sc->tx_nfree++;
823 }
824 }
825
826 static void
827 rum_reset_tx_list(struct rum_softc *sc, struct ieee80211vap *vap)
828 {
829 struct rum_tx_data *data, *tmp;
830
831 KASSERT(vap != NULL, ("%s: vap is NULL\n", __func__));
832
833 STAILQ_FOREACH_SAFE(data, &sc->tx_q, next, tmp) {
834 if (data->ni != NULL && data->ni->ni_vap == vap) {
835 ieee80211_free_node(data->ni);
836 data->ni = NULL;
837
838 KASSERT(data->m != NULL, ("%s: m is NULL\n",
839 __func__));
840 m_freem(data->m);
841 data->m = NULL;
842
843 STAILQ_REMOVE(&sc->tx_q, data, rum_tx_data, next);
844 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
845 sc->tx_nfree++;
846 }
847 }
848 }
849
850 static void
851 rum_unsetup_tx_list(struct rum_softc *sc)
852 {
853 struct rum_tx_data *data;
854 int i;
855
856 /* make sure any subsequent use of the queues will fail */
857 sc->tx_nfree = 0;
858 STAILQ_INIT(&sc->tx_q);
859 STAILQ_INIT(&sc->tx_free);
860
861 /* free up all node references and mbufs */
862 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
863 data = &sc->tx_data[i];
864
865 if (data->m != NULL) {
866 m_freem(data->m);
867 data->m = NULL;
868 }
869 if (data->ni != NULL) {
870 ieee80211_free_node(data->ni);
871 data->ni = NULL;
872 }
873 }
874 }
875
876 static void
877 rum_beacon_miss(struct ieee80211vap *vap)
878 {
879 struct ieee80211com *ic = vap->iv_ic;
880 struct rum_softc *sc = ic->ic_softc;
881 struct rum_vap *rvp = RUM_VAP(vap);
882 int sleep;
883
884 RUM_LOCK(sc);
885 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) {
886 DPRINTFN(12, "dropping 'sleeping' bit, "
887 "device must be awake now\n");
888
889 sc->sc_sleeping = 0;
890 }
891
892 sleep = sc->sc_sleeping;
893 RUM_UNLOCK(sc);
894
895 if (!sleep)
896 rvp->bmiss(vap);
897 #ifdef USB_DEBUG
898 else
899 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n");
900 #endif
901 }
902
903 static void
904 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
905 const struct ieee80211_rx_stats *rxs,
906 int rssi, int nf)
907 {
908 struct ieee80211vap *vap = ni->ni_vap;
909 struct rum_softc *sc = vap->iv_ic->ic_softc;
910 struct rum_vap *rvp = RUM_VAP(vap);
911
912 if (vap->iv_state == IEEE80211_S_SLEEP &&
913 subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
914 RUM_LOCK(sc);
915 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n",
916 !!(sc->last_rx_flags & RT2573_RX_MYBSS),
917 sc->last_rx_flags);
918
919 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) ==
920 (RT2573_RX_MYBSS | RT2573_RX_BC)) {
921 /*
922 * Put it to sleep here; in case if there is a data
923 * for us, iv_recv_mgmt() will wakeup the device via
924 * SLEEP -> RUN state transition.
925 */
926 rum_set_power_state(sc, 1);
927 }
928 RUM_UNLOCK(sc);
929 }
930
931 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf);
932 }
933
934 static int
935 rum_set_power_state(struct rum_softc *sc, int sleep)
936 {
937 usb_error_t uerror;
938
939 RUM_LOCK_ASSERT(sc);
940
941 DPRINTFN(12, "moving to %s state (sleep time %u)\n",
942 sleep ? "sleep" : "awake", sc->sc_sleep_time);
943
944 uerror = rum_do_mcu_request(sc,
945 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP);
946 if (uerror != USB_ERR_NORMAL_COMPLETION) {
947 device_printf(sc->sc_dev,
948 "%s: could not change power state: %s\n",
949 __func__, usbd_errstr(uerror));
950 return (EIO);
951 }
952
953 sc->sc_sleeping = !!sleep;
954 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0;
955
956 return (0);
957 }
958
959 static int
960 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
961 {
962 struct rum_vap *rvp = RUM_VAP(vap);
963 struct ieee80211com *ic = vap->iv_ic;
964 struct rum_softc *sc = ic->ic_softc;
965 const struct ieee80211_txparam *tp;
966 enum ieee80211_state ostate;
967 struct ieee80211_node *ni;
968 usb_error_t uerror;
969 int ret = 0;
970
971 ostate = vap->iv_state;
972 DPRINTF("%s -> %s\n",
973 ieee80211_state_name[ostate],
974 ieee80211_state_name[nstate]);
975
976 IEEE80211_UNLOCK(ic);
977 RUM_LOCK(sc);
978 usb_callout_stop(&rvp->ratectl_ch);
979
980 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) {
981 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
982 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
983
984 /*
985 * Ignore any errors;
986 * any subsequent TX will wakeup it anyway
987 */
988 (void) rum_set_power_state(sc, 0);
989 }
990
991 switch (nstate) {
992 case IEEE80211_S_INIT:
993 if (ostate == IEEE80211_S_RUN)
994 rum_abort_tsf_sync(sc);
995
996 break;
997
998 case IEEE80211_S_RUN:
999 if (ostate == IEEE80211_S_SLEEP)
1000 break; /* already handled */
1001
1002 ni = ieee80211_ref_node(vap->iv_bss);
1003
1004 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
1005 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1006 ni->ni_chan == IEEE80211_CHAN_ANYC) {
1007 ret = EINVAL;
1008 goto run_fail;
1009 }
1010 rum_update_slot_cb(sc, NULL, 0);
1011 rum_enable_mrr(sc);
1012 rum_set_txpreamble(sc);
1013 rum_set_basicrates(sc);
1014 rum_set_maxretry(sc, vap);
1015 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
1016 rum_set_bssid(sc, sc->sc_bssid);
1017 }
1018
1019 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1020 vap->iv_opmode == IEEE80211_M_IBSS) {
1021 if ((ret = rum_alloc_beacon(sc, vap)) != 0)
1022 goto run_fail;
1023 }
1024
1025 if (vap->iv_opmode != IEEE80211_M_MONITOR &&
1026 vap->iv_opmode != IEEE80211_M_AHDEMO) {
1027 if ((ret = rum_enable_tsf_sync(sc)) != 0)
1028 goto run_fail;
1029 } else
1030 rum_enable_tsf(sc);
1031
1032 /* enable automatic rate adaptation */
1033 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1034 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
1035 rum_ratectl_start(sc, ni);
1036 run_fail:
1037 ieee80211_free_node(ni);
1038 break;
1039 case IEEE80211_S_SLEEP:
1040 /* Implemented for STA mode only. */
1041 if (vap->iv_opmode != IEEE80211_M_STA)
1042 break;
1043
1044 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
1045 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1046 ret = EIO;
1047 break;
1048 }
1049
1050 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
1051 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1052 ret = EIO;
1053 break;
1054 }
1055
1056 ret = rum_set_power_state(sc, 1);
1057 if (ret != 0) {
1058 device_printf(sc->sc_dev,
1059 "%s: could not move to the SLEEP state: %s\n",
1060 __func__, usbd_errstr(uerror));
1061 }
1062 break;
1063 default:
1064 break;
1065 }
1066 RUM_UNLOCK(sc);
1067 IEEE80211_LOCK(ic);
1068 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret);
1069 }
1070
1071 static void
1072 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1073 {
1074 struct rum_softc *sc = usbd_xfer_softc(xfer);
1075 struct ieee80211vap *vap;
1076 struct rum_tx_data *data;
1077 struct mbuf *m;
1078 struct usb_page_cache *pc;
1079 unsigned len;
1080 int actlen, sumlen;
1081
1082 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1083
1084 switch (USB_GET_STATE(xfer)) {
1085 case USB_ST_TRANSFERRED:
1086 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
1087
1088 /* free resources */
1089 data = usbd_xfer_get_priv(xfer);
1090 rum_tx_free(data, 0);
1091 usbd_xfer_set_priv(xfer, NULL);
1092
1093 /* FALLTHROUGH */
1094 case USB_ST_SETUP:
1095 tr_setup:
1096 data = STAILQ_FIRST(&sc->tx_q);
1097 if (data) {
1098 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
1099 m = data->m;
1100
1101 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
1102 DPRINTFN(0, "data overflow, %u bytes\n",
1103 m->m_pkthdr.len);
1104 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
1105 }
1106 pc = usbd_xfer_get_frame(xfer, 0);
1107 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
1108 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
1109 m->m_pkthdr.len);
1110
1111 vap = data->ni->ni_vap;
1112 if (ieee80211_radiotap_active_vap(vap)) {
1113 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1114
1115 tap->wt_flags = 0;
1116 tap->wt_rate = data->rate;
1117 tap->wt_antenna = sc->tx_ant;
1118
1119 ieee80211_radiotap_tx(vap, m);
1120 }
1121
1122 /* align end on a 4-bytes boundary */
1123 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
1124 if ((len % 64) == 0)
1125 len += 4;
1126
1127 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
1128 m->m_pkthdr.len, len);
1129
1130 usbd_xfer_set_frame_len(xfer, 0, len);
1131 usbd_xfer_set_priv(xfer, data);
1132
1133 usbd_transfer_submit(xfer);
1134 }
1135 rum_start(sc);
1136 break;
1137
1138 default: /* Error */
1139 DPRINTFN(11, "transfer error, %s\n",
1140 usbd_errstr(error));
1141
1142 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1143 data = usbd_xfer_get_priv(xfer);
1144 if (data != NULL) {
1145 rum_tx_free(data, error);
1146 usbd_xfer_set_priv(xfer, NULL);
1147 }
1148
1149 if (error != USB_ERR_CANCELLED) {
1150 if (error == USB_ERR_TIMEOUT)
1151 device_printf(sc->sc_dev, "device timeout\n");
1152
1153 /*
1154 * Try to clear stall first, also if other
1155 * errors occur, hence clearing stall
1156 * introduces a 50 ms delay:
1157 */
1158 usbd_xfer_set_stall(xfer);
1159 goto tr_setup;
1160 }
1161 break;
1162 }
1163 }
1164
1165 static void
1166 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1167 {
1168 struct rum_softc *sc = usbd_xfer_softc(xfer);
1169 struct ieee80211com *ic = &sc->sc_ic;
1170 struct ieee80211_frame_min *wh;
1171 struct ieee80211_node *ni;
1172 struct epoch_tracker et;
1173 struct mbuf *m = NULL;
1174 struct usb_page_cache *pc;
1175 uint32_t flags;
1176 uint8_t rssi = 0;
1177 int len;
1178
1179 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
1180
1181 switch (USB_GET_STATE(xfer)) {
1182 case USB_ST_TRANSFERRED:
1183
1184 DPRINTFN(15, "rx done, actlen=%d\n", len);
1185
1186 if (len < RT2573_RX_DESC_SIZE) {
1187 DPRINTF("%s: xfer too short %d\n",
1188 device_get_nameunit(sc->sc_dev), len);
1189 counter_u64_add(ic->ic_ierrors, 1);
1190 goto tr_setup;
1191 }
1192
1193 len -= RT2573_RX_DESC_SIZE;
1194 pc = usbd_xfer_get_frame(xfer, 0);
1195 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
1196
1197 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
1198 flags = le32toh(sc->sc_rx_desc.flags);
1199 sc->last_rx_flags = flags;
1200 if (len < ((flags >> 16) & 0xfff)) {
1201 DPRINTFN(5, "%s: frame is truncated from %d to %d "
1202 "bytes\n", device_get_nameunit(sc->sc_dev),
1203 (flags >> 16) & 0xfff, len);
1204 counter_u64_add(ic->ic_ierrors, 1);
1205 goto tr_setup;
1206 }
1207 len = (flags >> 16) & 0xfff;
1208 if (len < sizeof(struct ieee80211_frame_ack)) {
1209 DPRINTFN(5, "%s: frame too short %d\n",
1210 device_get_nameunit(sc->sc_dev), len);
1211 counter_u64_add(ic->ic_ierrors, 1);
1212 goto tr_setup;
1213 }
1214 if (flags & RT2573_RX_CRC_ERROR) {
1215 /*
1216 * This should not happen since we did not
1217 * request to receive those frames when we
1218 * filled RUM_TXRX_CSR2:
1219 */
1220 DPRINTFN(5, "PHY or CRC error\n");
1221 counter_u64_add(ic->ic_ierrors, 1);
1222 goto tr_setup;
1223 }
1224 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) {
1225 switch (flags & RT2573_RX_DEC_MASK) {
1226 case RT2573_RX_IV_ERROR:
1227 DPRINTFN(5, "IV/EIV error\n");
1228 break;
1229 case RT2573_RX_MIC_ERROR:
1230 DPRINTFN(5, "MIC error\n");
1231 break;
1232 case RT2573_RX_KEY_ERROR:
1233 DPRINTFN(5, "Key error\n");
1234 break;
1235 }
1236 counter_u64_add(ic->ic_ierrors, 1);
1237 goto tr_setup;
1238 }
1239
1240 m = m_get2(len, M_NOWAIT, MT_DATA, M_PKTHDR);
1241 if (m == NULL) {
1242 DPRINTF("could not allocate mbuf\n");
1243 counter_u64_add(ic->ic_ierrors, 1);
1244 goto tr_setup;
1245 }
1246 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
1247 mtod(m, uint8_t *), len);
1248
1249 wh = mtod(m, struct ieee80211_frame_min *);
1250
1251 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1252 (flags & RT2573_RX_CIP_MASK) !=
1253 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) {
1254 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
1255 m->m_flags |= M_WEP;
1256 }
1257
1258 /* finalize mbuf */
1259 m->m_pkthdr.len = m->m_len = len;
1260
1261 if (ieee80211_radiotap_active(ic)) {
1262 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
1263
1264 tap->wr_flags = 0;
1265 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
1266 (flags & RT2573_RX_OFDM) ?
1267 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1268 rum_get_tsf(sc, &tap->wr_tsf);
1269 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
1270 tap->wr_antnoise = RT2573_NOISE_FLOOR;
1271 tap->wr_antenna = sc->rx_ant;
1272 }
1273 /* FALLTHROUGH */
1274 case USB_ST_SETUP:
1275 tr_setup:
1276 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1277 usbd_transfer_submit(xfer);
1278
1279 /*
1280 * At the end of a USB callback it is always safe to unlock
1281 * the private mutex of a device! That is why we do the
1282 * "ieee80211_input" here, and not some lines up!
1283 */
1284 RUM_UNLOCK(sc);
1285 if (m) {
1286 if (m->m_len >= sizeof(struct ieee80211_frame_min))
1287 ni = ieee80211_find_rxnode(ic, wh);
1288 else
1289 ni = NULL;
1290
1291 NET_EPOCH_ENTER(et);
1292 if (ni != NULL) {
1293 (void) ieee80211_input(ni, m, rssi,
1294 RT2573_NOISE_FLOOR);
1295 ieee80211_free_node(ni);
1296 } else
1297 (void) ieee80211_input_all(ic, m, rssi,
1298 RT2573_NOISE_FLOOR);
1299 NET_EPOCH_EXIT(et);
1300 }
1301 RUM_LOCK(sc);
1302 rum_start(sc);
1303 return;
1304
1305 default: /* Error */
1306 if (error != USB_ERR_CANCELLED) {
1307 /* try to clear stall first */
1308 usbd_xfer_set_stall(xfer);
1309 goto tr_setup;
1310 }
1311 return;
1312 }
1313 }
1314
1315 static uint8_t
1316 rum_plcp_signal(int rate)
1317 {
1318 switch (rate) {
1319 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1320 case 12: return 0xb;
1321 case 18: return 0xf;
1322 case 24: return 0xa;
1323 case 36: return 0xe;
1324 case 48: return 0x9;
1325 case 72: return 0xd;
1326 case 96: return 0x8;
1327 case 108: return 0xc;
1328
1329 /* CCK rates (NB: not IEEE std, device-specific) */
1330 case 2: return 0x0;
1331 case 4: return 0x1;
1332 case 11: return 0x2;
1333 case 22: return 0x3;
1334 }
1335 return 0xff; /* XXX unsupported/unknown rate */
1336 }
1337
1338 /*
1339 * Map net80211 cipher to RT2573 security mode.
1340 */
1341 static uint8_t
1342 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen)
1343 {
1344 switch (cipher) {
1345 case IEEE80211_CIPHER_WEP:
1346 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104);
1347 case IEEE80211_CIPHER_TKIP:
1348 return RT2573_MODE_TKIP;
1349 case IEEE80211_CIPHER_AES_CCM:
1350 return RT2573_MODE_AES_CCMP;
1351 default:
1352 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher);
1353 return 0;
1354 }
1355 }
1356
1357 static void
1358 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1359 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid,
1360 int hdrlen, int len, int rate)
1361 {
1362 struct ieee80211com *ic = &sc->sc_ic;
1363 struct wmeParams *wmep = &sc->wme_params[qid];
1364 uint16_t plcp_length;
1365 int remainder;
1366
1367 flags |= RT2573_TX_VALID;
1368 flags |= len << 16;
1369
1370 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1371 const struct ieee80211_cipher *cip = k->wk_cipher;
1372
1373 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen;
1374
1375 desc->eiv = 0; /* for WEP */
1376 cip->ic_setiv(k, (uint8_t *)&desc->iv);
1377 }
1378
1379 /* setup PLCP fields */
1380 desc->plcp_signal = rum_plcp_signal(rate);
1381 desc->plcp_service = 4;
1382
1383 len += IEEE80211_CRC_LEN;
1384 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1385 flags |= RT2573_TX_OFDM;
1386
1387 plcp_length = len & 0xfff;
1388 desc->plcp_length_hi = plcp_length >> 6;
1389 desc->plcp_length_lo = plcp_length & 0x3f;
1390 } else {
1391 if (rate == 0)
1392 rate = 2; /* avoid division by zero */
1393 plcp_length = howmany(16 * len, rate);
1394 if (rate == 22) {
1395 remainder = (16 * len) % 22;
1396 if (remainder != 0 && remainder < 7)
1397 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1398 }
1399 desc->plcp_length_hi = plcp_length >> 8;
1400 desc->plcp_length_lo = plcp_length & 0xff;
1401
1402 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1403 desc->plcp_signal |= 0x08;
1404 }
1405
1406 desc->flags = htole32(flags);
1407 desc->hdrlen = hdrlen;
1408 desc->xflags = xflags;
1409
1410 desc->wme = htole16(RT2573_QID(qid) |
1411 RT2573_AIFSN(wmep->wmep_aifsn) |
1412 RT2573_LOGCWMIN(wmep->wmep_logcwmin) |
1413 RT2573_LOGCWMAX(wmep->wmep_logcwmax));
1414 }
1415
1416 static int
1417 rum_sendprot(struct rum_softc *sc,
1418 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1419 {
1420 struct ieee80211com *ic = ni->ni_ic;
1421 struct rum_tx_data *data;
1422 struct mbuf *mprot;
1423 int protrate, flags;
1424
1425 RUM_LOCK_ASSERT(sc);
1426
1427 mprot = ieee80211_alloc_prot(ni, m, rate, prot);
1428 if (mprot == NULL) {
1429 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1);
1430 device_printf(sc->sc_dev,
1431 "could not allocate mbuf for protection mode %d\n", prot);
1432 return (ENOBUFS);
1433 }
1434
1435 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1436 flags = 0;
1437 if (prot == IEEE80211_PROT_RTSCTS)
1438 flags |= RT2573_TX_NEED_ACK;
1439
1440 data = STAILQ_FIRST(&sc->tx_free);
1441 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1442 sc->tx_nfree--;
1443
1444 data->m = mprot;
1445 data->ni = ieee80211_ref_node(ni);
1446 data->rate = protrate;
1447 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0,
1448 mprot->m_pkthdr.len, protrate);
1449
1450 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1451 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1452
1453 return 0;
1454 }
1455
1456 static uint32_t
1457 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni,
1458 const struct ieee80211_key *k)
1459 {
1460 struct ieee80211vap *vap = ni->ni_vap;
1461 u_int cipher;
1462 uint32_t flags = 0;
1463 uint8_t mode, pos;
1464
1465 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1466 cipher = k->wk_cipher->ic_cipher;
1467 pos = k->wk_keyix;
1468 mode = rum_crypto_mode(sc, cipher, k->wk_keylen);
1469 if (mode == 0)
1470 return 0;
1471
1472 flags |= RT2573_TX_CIP_MODE(mode);
1473
1474 /* Do not trust GROUP flag */
1475 if (!(k >= &vap->iv_nw_keys[0] &&
1476 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]))
1477 flags |= RT2573_TX_KEY_PAIR;
1478 else
1479 pos += 0 * RT2573_SKEY_MAX; /* vap id */
1480
1481 flags |= RT2573_TX_KEY_ID(pos);
1482
1483 if (cipher == IEEE80211_CIPHER_TKIP)
1484 flags |= RT2573_TX_TKIPMIC;
1485 }
1486
1487 return flags;
1488 }
1489
1490 static int
1491 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1492 {
1493 const struct ieee80211_txparam *tp = ni->ni_txparms;
1494 struct ieee80211com *ic = &sc->sc_ic;
1495 struct rum_tx_data *data;
1496 struct ieee80211_frame *wh;
1497 struct ieee80211_key *k = NULL;
1498 uint32_t flags = 0;
1499 uint16_t dur;
1500 uint8_t ac, type, xflags = 0;
1501 int hdrlen;
1502
1503 RUM_LOCK_ASSERT(sc);
1504
1505 data = STAILQ_FIRST(&sc->tx_free);
1506 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1507 sc->tx_nfree--;
1508
1509 wh = mtod(m0, struct ieee80211_frame *);
1510 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1511 hdrlen = ieee80211_anyhdrsize(wh);
1512 ac = M_WME_GETAC(m0);
1513
1514 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1515 k = ieee80211_crypto_get_txkey(ni, m0);
1516 if (k == NULL)
1517 return (ENOENT);
1518
1519 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1520 !k->wk_cipher->ic_encap(k, m0))
1521 return (ENOBUFS);
1522
1523 wh = mtod(m0, struct ieee80211_frame *);
1524 }
1525
1526 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1527 flags |= RT2573_TX_NEED_ACK;
1528
1529 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1530 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1531 USETW(wh->i_dur, dur);
1532
1533 /* tell hardware to add timestamp for probe responses */
1534 if (type == IEEE80211_FC0_TYPE_MGT &&
1535 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1536 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1537 flags |= RT2573_TX_TIMESTAMP;
1538 }
1539
1540 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1541 xflags |= RT2573_TX_HWSEQ;
1542
1543 if (k != NULL)
1544 flags |= rum_tx_crypto_flags(sc, ni, k);
1545
1546 data->m = m0;
1547 data->ni = ni;
1548 data->rate = tp->mgmtrate;
1549
1550 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1551 m0->m_pkthdr.len, tp->mgmtrate);
1552
1553 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1554 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1555
1556 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1557 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1558
1559 return (0);
1560 }
1561
1562 static int
1563 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1564 const struct ieee80211_bpf_params *params)
1565 {
1566 struct ieee80211com *ic = ni->ni_ic;
1567 struct ieee80211_frame *wh;
1568 struct rum_tx_data *data;
1569 uint32_t flags;
1570 uint8_t ac, type, xflags = 0;
1571 int rate, error;
1572
1573 RUM_LOCK_ASSERT(sc);
1574
1575 wh = mtod(m0, struct ieee80211_frame *);
1576 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1577
1578 ac = params->ibp_pri & 3;
1579
1580 rate = params->ibp_rate0;
1581 if (!ieee80211_isratevalid(ic->ic_rt, rate))
1582 return (EINVAL);
1583
1584 flags = 0;
1585 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1586 flags |= RT2573_TX_NEED_ACK;
1587 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1588 error = rum_sendprot(sc, m0, ni,
1589 params->ibp_flags & IEEE80211_BPF_RTS ?
1590 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1591 rate);
1592 if (error || sc->tx_nfree == 0)
1593 return (ENOBUFS);
1594
1595 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1596 }
1597
1598 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1599 xflags |= RT2573_TX_HWSEQ;
1600
1601 data = STAILQ_FIRST(&sc->tx_free);
1602 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1603 sc->tx_nfree--;
1604
1605 data->m = m0;
1606 data->ni = ni;
1607 data->rate = rate;
1608
1609 /* XXX need to setup descriptor ourself */
1610 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0,
1611 m0->m_pkthdr.len, rate);
1612
1613 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1614 m0->m_pkthdr.len, rate);
1615
1616 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1617 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1618
1619 return 0;
1620 }
1621
1622 static int
1623 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1624 {
1625 struct ieee80211vap *vap = ni->ni_vap;
1626 struct ieee80211com *ic = &sc->sc_ic;
1627 struct rum_tx_data *data;
1628 struct ieee80211_frame *wh;
1629 const struct ieee80211_txparam *tp = ni->ni_txparms;
1630 struct ieee80211_key *k = NULL;
1631 uint32_t flags = 0;
1632 uint16_t dur;
1633 uint8_t ac, type, qos, xflags = 0;
1634 int error, hdrlen, rate;
1635
1636 RUM_LOCK_ASSERT(sc);
1637
1638 wh = mtod(m0, struct ieee80211_frame *);
1639 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1640 hdrlen = ieee80211_anyhdrsize(wh);
1641
1642 if (IEEE80211_QOS_HAS_SEQ(wh))
1643 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
1644 else
1645 qos = 0;
1646 ac = M_WME_GETAC(m0);
1647
1648 if (m0->m_flags & M_EAPOL)
1649 rate = tp->mgmtrate;
1650 else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1651 rate = tp->mcastrate;
1652 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1653 rate = tp->ucastrate;
1654 else {
1655 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1656 rate = ni->ni_txrate;
1657 }
1658
1659 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1660 k = ieee80211_crypto_get_txkey(ni, m0);
1661 if (k == NULL) {
1662 m_freem(m0);
1663 return (ENOENT);
1664 }
1665 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1666 !k->wk_cipher->ic_encap(k, m0)) {
1667 m_freem(m0);
1668 return (ENOBUFS);
1669 }
1670
1671 /* packet header may have moved, reset our local pointer */
1672 wh = mtod(m0, struct ieee80211_frame *);
1673 }
1674
1675 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1676 xflags |= RT2573_TX_HWSEQ;
1677
1678 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1679 int prot = IEEE80211_PROT_NONE;
1680 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1681 prot = IEEE80211_PROT_RTSCTS;
1682 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1683 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1684 prot = ic->ic_protmode;
1685 if (prot != IEEE80211_PROT_NONE) {
1686 error = rum_sendprot(sc, m0, ni, prot, rate);
1687 if (error || sc->tx_nfree == 0) {
1688 m_freem(m0);
1689 return ENOBUFS;
1690 }
1691 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1692 }
1693 }
1694
1695 if (k != NULL)
1696 flags |= rum_tx_crypto_flags(sc, ni, k);
1697
1698 data = STAILQ_FIRST(&sc->tx_free);
1699 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1700 sc->tx_nfree--;
1701
1702 data->m = m0;
1703 data->ni = ni;
1704 data->rate = rate;
1705
1706 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1707 /* Unicast frame, check if an ACK is expected. */
1708 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
1709 IEEE80211_QOS_ACKPOLICY_NOACK)
1710 flags |= RT2573_TX_NEED_ACK;
1711
1712 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1713 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1714 USETW(wh->i_dur, dur);
1715 }
1716
1717 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1718 m0->m_pkthdr.len, rate);
1719
1720 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1721 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1722
1723 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1724 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1725
1726 return 0;
1727 }
1728
1729 static int
1730 rum_transmit(struct ieee80211com *ic, struct mbuf *m)
1731 {
1732 struct rum_softc *sc = ic->ic_softc;
1733 int error;
1734
1735 RUM_LOCK(sc);
1736 if (!sc->sc_running) {
1737 RUM_UNLOCK(sc);
1738 return (ENXIO);
1739 }
1740 error = mbufq_enqueue(&sc->sc_snd, m);
1741 if (error) {
1742 RUM_UNLOCK(sc);
1743 return (error);
1744 }
1745 rum_start(sc);
1746 RUM_UNLOCK(sc);
1747
1748 return (0);
1749 }
1750
1751 static void
1752 rum_start(struct rum_softc *sc)
1753 {
1754 struct ieee80211_node *ni;
1755 struct mbuf *m;
1756
1757 RUM_LOCK_ASSERT(sc);
1758
1759 if (!sc->sc_running)
1760 return;
1761
1762 while (sc->tx_nfree >= RUM_TX_MINFREE &&
1763 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1764 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1765 if (rum_tx_data(sc, m, ni) != 0) {
1766 if_inc_counter(ni->ni_vap->iv_ifp,
1767 IFCOUNTER_OERRORS, 1);
1768 ieee80211_free_node(ni);
1769 break;
1770 }
1771 }
1772 }
1773
1774 static void
1775 rum_parent(struct ieee80211com *ic)
1776 {
1777 struct rum_softc *sc = ic->ic_softc;
1778 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1779
1780 RUM_LOCK(sc);
1781 if (sc->sc_detached) {
1782 RUM_UNLOCK(sc);
1783 return;
1784 }
1785 RUM_UNLOCK(sc);
1786
1787 if (ic->ic_nrunning > 0) {
1788 if (rum_init(sc) == 0)
1789 ieee80211_start_all(ic);
1790 else
1791 ieee80211_stop(vap);
1792 } else
1793 rum_stop(sc);
1794 }
1795
1796 static void
1797 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1798 {
1799 struct usb_device_request req;
1800 usb_error_t error;
1801
1802 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1803 req.bRequest = RT2573_READ_EEPROM;
1804 USETW(req.wValue, 0);
1805 USETW(req.wIndex, addr);
1806 USETW(req.wLength, len);
1807
1808 error = rum_do_request(sc, &req, buf);
1809 if (error != 0) {
1810 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1811 usbd_errstr(error));
1812 }
1813 }
1814
1815 static uint32_t
1816 rum_read(struct rum_softc *sc, uint16_t reg)
1817 {
1818 uint32_t val;
1819
1820 rum_read_multi(sc, reg, &val, sizeof val);
1821
1822 return le32toh(val);
1823 }
1824
1825 static void
1826 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1827 {
1828 struct usb_device_request req;
1829 usb_error_t error;
1830
1831 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1832 req.bRequest = RT2573_READ_MULTI_MAC;
1833 USETW(req.wValue, 0);
1834 USETW(req.wIndex, reg);
1835 USETW(req.wLength, len);
1836
1837 error = rum_do_request(sc, &req, buf);
1838 if (error != 0) {
1839 device_printf(sc->sc_dev,
1840 "could not multi read MAC register: %s\n",
1841 usbd_errstr(error));
1842 }
1843 }
1844
1845 static usb_error_t
1846 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1847 {
1848 uint32_t tmp = htole32(val);
1849
1850 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1851 }
1852
1853 static usb_error_t
1854 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1855 {
1856 struct usb_device_request req;
1857 usb_error_t error;
1858 size_t offset;
1859
1860 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1861 req.bRequest = RT2573_WRITE_MULTI_MAC;
1862 USETW(req.wValue, 0);
1863
1864 /* write at most 64 bytes at a time */
1865 for (offset = 0; offset < len; offset += 64) {
1866 USETW(req.wIndex, reg + offset);
1867 USETW(req.wLength, MIN(len - offset, 64));
1868
1869 error = rum_do_request(sc, &req, (char *)buf + offset);
1870 if (error != 0) {
1871 device_printf(sc->sc_dev,
1872 "could not multi write MAC register: %s\n",
1873 usbd_errstr(error));
1874 return (error);
1875 }
1876 }
1877
1878 return (USB_ERR_NORMAL_COMPLETION);
1879 }
1880
1881 static usb_error_t
1882 rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1883 {
1884 return (rum_write(sc, reg, rum_read(sc, reg) | mask));
1885 }
1886
1887 static usb_error_t
1888 rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1889 {
1890 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask));
1891 }
1892
1893 static usb_error_t
1894 rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset)
1895 {
1896 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set));
1897 }
1898
1899 static int
1900 rum_bbp_busy(struct rum_softc *sc)
1901 {
1902 int ntries;
1903
1904 for (ntries = 0; ntries < 100; ntries++) {
1905 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1906 break;
1907 if (rum_pause(sc, hz / 100))
1908 break;
1909 }
1910 if (ntries == 100)
1911 return (ETIMEDOUT);
1912
1913 return (0);
1914 }
1915
1916 static void
1917 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1918 {
1919 uint32_t tmp;
1920
1921 DPRINTFN(2, "reg=0x%08x\n", reg);
1922
1923 if (rum_bbp_busy(sc) != 0) {
1924 device_printf(sc->sc_dev, "could not write to BBP\n");
1925 return;
1926 }
1927
1928 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1929 rum_write(sc, RT2573_PHY_CSR3, tmp);
1930 }
1931
1932 static uint8_t
1933 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1934 {
1935 uint32_t val;
1936 int ntries;
1937
1938 DPRINTFN(2, "reg=0x%08x\n", reg);
1939
1940 if (rum_bbp_busy(sc) != 0) {
1941 device_printf(sc->sc_dev, "could not read BBP\n");
1942 return 0;
1943 }
1944
1945 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1946 rum_write(sc, RT2573_PHY_CSR3, val);
1947
1948 for (ntries = 0; ntries < 100; ntries++) {
1949 val = rum_read(sc, RT2573_PHY_CSR3);
1950 if (!(val & RT2573_BBP_BUSY))
1951 return val & 0xff;
1952 if (rum_pause(sc, hz / 100))
1953 break;
1954 }
1955
1956 device_printf(sc->sc_dev, "could not read BBP\n");
1957 return 0;
1958 }
1959
1960 static void
1961 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1962 {
1963 uint32_t tmp;
1964 int ntries;
1965
1966 for (ntries = 0; ntries < 100; ntries++) {
1967 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1968 break;
1969 if (rum_pause(sc, hz / 100))
1970 break;
1971 }
1972 if (ntries == 100) {
1973 device_printf(sc->sc_dev, "could not write to RF\n");
1974 return;
1975 }
1976
1977 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1978 (reg & 3);
1979 rum_write(sc, RT2573_PHY_CSR4, tmp);
1980
1981 /* remember last written value in sc */
1982 sc->rf_regs[reg] = val;
1983
1984 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1985 }
1986
1987 static void
1988 rum_select_antenna(struct rum_softc *sc)
1989 {
1990 uint8_t bbp4, bbp77;
1991 uint32_t tmp;
1992
1993 bbp4 = rum_bbp_read(sc, 4);
1994 bbp77 = rum_bbp_read(sc, 77);
1995
1996 /* TBD */
1997
1998 /* make sure Rx is disabled before switching antenna */
1999 tmp = rum_read(sc, RT2573_TXRX_CSR0);
2000 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2001
2002 rum_bbp_write(sc, 4, bbp4);
2003 rum_bbp_write(sc, 77, bbp77);
2004
2005 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2006 }
2007
2008 /*
2009 * Enable multi-rate retries for frames sent at OFDM rates.
2010 * In 802.11b/g mode, allow fallback to CCK rates.
2011 */
2012 static void
2013 rum_enable_mrr(struct rum_softc *sc)
2014 {
2015 struct ieee80211com *ic = &sc->sc_ic;
2016
2017 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2018 rum_setbits(sc, RT2573_TXRX_CSR4,
2019 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK);
2020 } else {
2021 rum_modbits(sc, RT2573_TXRX_CSR4,
2022 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK);
2023 }
2024 }
2025
2026 static void
2027 rum_set_txpreamble(struct rum_softc *sc)
2028 {
2029 struct ieee80211com *ic = &sc->sc_ic;
2030
2031 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2032 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2033 else
2034 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2035 }
2036
2037 static void
2038 rum_set_basicrates(struct rum_softc *sc)
2039 {
2040 struct ieee80211com *ic = &sc->sc_ic;
2041
2042 /* update basic rate set */
2043 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2044 /* 11b basic rates: 1, 2Mbps */
2045 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
2046 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2047 /* 11a basic rates: 6, 12, 24Mbps */
2048 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
2049 } else {
2050 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
2051 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
2052 }
2053 }
2054
2055 /*
2056 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
2057 * driver.
2058 */
2059 static void
2060 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
2061 {
2062 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
2063
2064 /* update all BBP registers that depend on the band */
2065 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
2066 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
2067 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2068 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
2069 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
2070 }
2071 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2072 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2073 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
2074 }
2075
2076 sc->bbp17 = bbp17;
2077 rum_bbp_write(sc, 17, bbp17);
2078 rum_bbp_write(sc, 96, bbp96);
2079 rum_bbp_write(sc, 104, bbp104);
2080
2081 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2082 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2083 rum_bbp_write(sc, 75, 0x80);
2084 rum_bbp_write(sc, 86, 0x80);
2085 rum_bbp_write(sc, 88, 0x80);
2086 }
2087
2088 rum_bbp_write(sc, 35, bbp35);
2089 rum_bbp_write(sc, 97, bbp97);
2090 rum_bbp_write(sc, 98, bbp98);
2091
2092 if (IEEE80211_IS_CHAN_2GHZ(c)) {
2093 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ,
2094 RT2573_PA_PE_5GHZ);
2095 } else {
2096 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ,
2097 RT2573_PA_PE_2GHZ);
2098 }
2099 }
2100
2101 static void
2102 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
2103 {
2104 struct ieee80211com *ic = &sc->sc_ic;
2105 const struct rfprog *rfprog;
2106 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
2107 int8_t power;
2108 int i, chan;
2109
2110 chan = ieee80211_chan2ieee(ic, c);
2111 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
2112 return;
2113
2114 /* select the appropriate RF settings based on what EEPROM says */
2115 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
2116 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
2117
2118 /* find the settings for this channel (we know it exists) */
2119 for (i = 0; rfprog[i].chan != chan; i++);
2120
2121 power = sc->txpow[i];
2122 if (power < 0) {
2123 bbp94 += power;
2124 power = 0;
2125 } else if (power > 31) {
2126 bbp94 += power - 31;
2127 power = 31;
2128 }
2129
2130 /*
2131 * If we are switching from the 2GHz band to the 5GHz band or
2132 * vice-versa, BBP registers need to be reprogrammed.
2133 */
2134 if (c->ic_flags != ic->ic_curchan->ic_flags) {
2135 rum_select_band(sc, c);
2136 rum_select_antenna(sc);
2137 }
2138 ic->ic_curchan = c;
2139
2140 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2141 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2142 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2143 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2144
2145 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2146 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2147 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
2148 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2149
2150 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2151 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2152 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2153 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2154
2155 rum_pause(sc, hz / 100);
2156
2157 /* enable smart mode for MIMO-capable RFs */
2158 bbp3 = rum_bbp_read(sc, 3);
2159
2160 bbp3 &= ~RT2573_SMART_MODE;
2161 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
2162 bbp3 |= RT2573_SMART_MODE;
2163
2164 rum_bbp_write(sc, 3, bbp3);
2165
2166 if (bbp94 != RT2573_BBPR94_DEFAULT)
2167 rum_bbp_write(sc, 94, bbp94);
2168
2169 /* give the chip some extra time to do the switchover */
2170 rum_pause(sc, hz / 100);
2171 }
2172
2173 static void
2174 rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap)
2175 {
2176 struct ieee80211_node *ni = vap->iv_bss;
2177 const struct ieee80211_txparam *tp = ni->ni_txparms;
2178 struct rum_vap *rvp = RUM_VAP(vap);
2179
2180 rvp->maxretry = MIN(tp->maxretry, 0xf);
2181
2182 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) |
2183 RT2573_LONG_RETRY(rvp->maxretry),
2184 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK);
2185 }
2186
2187 /*
2188 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
2189 * and HostAP operating modes.
2190 */
2191 static int
2192 rum_enable_tsf_sync(struct rum_softc *sc)
2193 {
2194 struct ieee80211com *ic = &sc->sc_ic;
2195 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2196 uint32_t tmp;
2197 uint16_t bintval;
2198
2199 if (vap->iv_opmode != IEEE80211_M_STA) {
2200 /*
2201 * Change default 16ms TBTT adjustment to 8ms.
2202 * Must be done before enabling beacon generation.
2203 */
2204 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0)
2205 return EIO;
2206 }
2207
2208 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
2209
2210 /* set beacon interval (in 1/16ms unit) */
2211 bintval = vap->iv_bss->ni_intval;
2212 tmp |= bintval * 16;
2213 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN;
2214
2215 switch (vap->iv_opmode) {
2216 case IEEE80211_M_STA:
2217 /*
2218 * Local TSF is always updated with remote TSF on beacon
2219 * reception.
2220 */
2221 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA);
2222 break;
2223 case IEEE80211_M_IBSS:
2224 /*
2225 * Local TSF is updated with remote TSF on beacon reception
2226 * only if the remote TSF is greater than local TSF.
2227 */
2228 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS);
2229 tmp |= RT2573_BCN_TX_EN;
2230 break;
2231 case IEEE80211_M_HOSTAP:
2232 /* SYNC with nobody */
2233 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP);
2234 tmp |= RT2573_BCN_TX_EN;
2235 break;
2236 default:
2237 device_printf(sc->sc_dev,
2238 "Enabling TSF failed. undefined opmode %d\n",
2239 vap->iv_opmode);
2240 return EINVAL;
2241 }
2242
2243 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0)
2244 return EIO;
2245
2246 /* refresh current sleep time */
2247 return (rum_set_sleep_time(sc, bintval));
2248 }
2249
2250 static void
2251 rum_enable_tsf(struct rum_softc *sc)
2252 {
2253 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN |
2254 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff);
2255 }
2256
2257 static void
2258 rum_abort_tsf_sync(struct rum_softc *sc)
2259 {
2260 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff);
2261 }
2262
2263 static void
2264 rum_get_tsf(struct rum_softc *sc, uint64_t *buf)
2265 {
2266 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf));
2267 }
2268
2269 static void
2270 rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id)
2271 {
2272 struct ieee80211com *ic = &sc->sc_ic;
2273 uint8_t slottime;
2274
2275 slottime = IEEE80211_GET_SLOTTIME(ic);
2276
2277 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff);
2278
2279 DPRINTF("setting slot time to %uus\n", slottime);
2280 }
2281
2282 static void
2283 rum_update_slot(struct ieee80211com *ic)
2284 {
2285 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb);
2286 }
2287
2288 static int
2289 rum_wme_update(struct ieee80211com *ic)
2290 {
2291 struct chanAccParams chp;
2292 const struct wmeParams *chanp;
2293 struct rum_softc *sc = ic->ic_softc;
2294 int error = 0;
2295
2296 ieee80211_wme_ic_getparams(ic, &chp);
2297 chanp = chp.cap_wmeParams;
2298
2299 RUM_LOCK(sc);
2300 error = rum_write(sc, RT2573_AIFSN_CSR,
2301 chanp[WME_AC_VO].wmep_aifsn << 12 |
2302 chanp[WME_AC_VI].wmep_aifsn << 8 |
2303 chanp[WME_AC_BK].wmep_aifsn << 4 |
2304 chanp[WME_AC_BE].wmep_aifsn);
2305 if (error)
2306 goto print_err;
2307 error = rum_write(sc, RT2573_CWMIN_CSR,
2308 chanp[WME_AC_VO].wmep_logcwmin << 12 |
2309 chanp[WME_AC_VI].wmep_logcwmin << 8 |
2310 chanp[WME_AC_BK].wmep_logcwmin << 4 |
2311 chanp[WME_AC_BE].wmep_logcwmin);
2312 if (error)
2313 goto print_err;
2314 error = rum_write(sc, RT2573_CWMAX_CSR,
2315 chanp[WME_AC_VO].wmep_logcwmax << 12 |
2316 chanp[WME_AC_VI].wmep_logcwmax << 8 |
2317 chanp[WME_AC_BK].wmep_logcwmax << 4 |
2318 chanp[WME_AC_BE].wmep_logcwmax);
2319 if (error)
2320 goto print_err;
2321 error = rum_write(sc, RT2573_TXOP01_CSR,
2322 chanp[WME_AC_BK].wmep_txopLimit << 16 |
2323 chanp[WME_AC_BE].wmep_txopLimit);
2324 if (error)
2325 goto print_err;
2326 error = rum_write(sc, RT2573_TXOP23_CSR,
2327 chanp[WME_AC_VO].wmep_txopLimit << 16 |
2328 chanp[WME_AC_VI].wmep_txopLimit);
2329 if (error)
2330 goto print_err;
2331
2332 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC);
2333
2334 print_err:
2335 RUM_UNLOCK(sc);
2336 if (error != 0) {
2337 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n",
2338 __func__, error);
2339 }
2340
2341 return (error);
2342 }
2343
2344 static void
2345 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
2346 {
2347
2348 rum_write(sc, RT2573_MAC_CSR4,
2349 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
2350 rum_write(sc, RT2573_MAC_CSR5,
2351 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1));
2352 }
2353
2354 static void
2355 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
2356 {
2357
2358 rum_write(sc, RT2573_MAC_CSR2,
2359 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2360 rum_write(sc, RT2573_MAC_CSR3,
2361 addr[4] | addr[5] << 8 | 0xff << 16);
2362 }
2363
2364 static void
2365 rum_setpromisc(struct rum_softc *sc)
2366 {
2367 struct ieee80211com *ic = &sc->sc_ic;
2368
2369 if (ic->ic_promisc == 0)
2370 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2371 else
2372 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2373
2374 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ?
2375 "entering" : "leaving");
2376 }
2377
2378 static void
2379 rum_update_promisc(struct ieee80211com *ic)
2380 {
2381 struct rum_softc *sc = ic->ic_softc;
2382
2383 RUM_LOCK(sc);
2384 if (sc->sc_running)
2385 rum_setpromisc(sc);
2386 RUM_UNLOCK(sc);
2387 }
2388
2389 static void
2390 rum_update_mcast(struct ieee80211com *ic)
2391 {
2392 /* Ignore. */
2393 }
2394
2395 static const char *
2396 rum_get_rf(int rev)
2397 {
2398 switch (rev) {
2399 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
2400 case RT2573_RF_2528: return "RT2528";
2401 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
2402 case RT2573_RF_5226: return "RT5226";
2403 default: return "unknown";
2404 }
2405 }
2406
2407 static void
2408 rum_read_eeprom(struct rum_softc *sc)
2409 {
2410 uint16_t val;
2411 #ifdef RUM_DEBUG
2412 int i;
2413 #endif
2414
2415 /* read MAC address */
2416 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6);
2417
2418 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
2419 val = le16toh(val);
2420 sc->rf_rev = (val >> 11) & 0x1f;
2421 sc->hw_radio = (val >> 10) & 0x1;
2422 sc->rx_ant = (val >> 4) & 0x3;
2423 sc->tx_ant = (val >> 2) & 0x3;
2424 sc->nb_ant = val & 0x3;
2425
2426 DPRINTF("RF revision=%d\n", sc->rf_rev);
2427
2428 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
2429 val = le16toh(val);
2430 sc->ext_5ghz_lna = (val >> 6) & 0x1;
2431 sc->ext_2ghz_lna = (val >> 4) & 0x1;
2432
2433 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
2434 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
2435
2436 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
2437 val = le16toh(val);
2438 if ((val & 0xff) != 0xff)
2439 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
2440
2441 /* Only [-10, 10] is valid */
2442 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
2443 sc->rssi_2ghz_corr = 0;
2444
2445 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
2446 val = le16toh(val);
2447 if ((val & 0xff) != 0xff)
2448 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
2449
2450 /* Only [-10, 10] is valid */
2451 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
2452 sc->rssi_5ghz_corr = 0;
2453
2454 if (sc->ext_2ghz_lna)
2455 sc->rssi_2ghz_corr -= 14;
2456 if (sc->ext_5ghz_lna)
2457 sc->rssi_5ghz_corr -= 14;
2458
2459 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
2460 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
2461
2462 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
2463 val = le16toh(val);
2464 if ((val & 0xff) != 0xff)
2465 sc->rffreq = val & 0xff;
2466
2467 DPRINTF("RF freq=%d\n", sc->rffreq);
2468
2469 /* read Tx power for all a/b/g channels */
2470 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
2471 /* XXX default Tx power for 802.11a channels */
2472 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
2473 #ifdef RUM_DEBUG
2474 for (i = 0; i < 14; i++)
2475 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]);
2476 #endif
2477
2478 /* read default values for BBP registers */
2479 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
2480 #ifdef RUM_DEBUG
2481 for (i = 0; i < 14; i++) {
2482 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2483 continue;
2484 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
2485 sc->bbp_prom[i].val);
2486 }
2487 #endif
2488 }
2489
2490 static int
2491 rum_bbp_wakeup(struct rum_softc *sc)
2492 {
2493 unsigned ntries;
2494
2495 for (ntries = 0; ntries < 100; ntries++) {
2496 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
2497 break;
2498 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
2499 if (rum_pause(sc, hz / 100))
2500 break;
2501 }
2502 if (ntries == 100) {
2503 device_printf(sc->sc_dev,
2504 "timeout waiting for BBP/RF to wakeup\n");
2505 return (ETIMEDOUT);
2506 }
2507
2508 return (0);
2509 }
2510
2511 static int
2512 rum_bbp_init(struct rum_softc *sc)
2513 {
2514 int i, ntries;
2515
2516 /* wait for BBP to be ready */
2517 for (ntries = 0; ntries < 100; ntries++) {
2518 const uint8_t val = rum_bbp_read(sc, 0);
2519 if (val != 0 && val != 0xff)
2520 break;
2521 if (rum_pause(sc, hz / 100))
2522 break;
2523 }
2524 if (ntries == 100) {
2525 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2526 return EIO;
2527 }
2528
2529 /* initialize BBP registers to default values */
2530 for (i = 0; i < nitems(rum_def_bbp); i++)
2531 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
2532
2533 /* write vendor-specific BBP values (from EEPROM) */
2534 for (i = 0; i < 16; i++) {
2535 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2536 continue;
2537 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2538 }
2539
2540 return 0;
2541 }
2542
2543 static void
2544 rum_clr_shkey_regs(struct rum_softc *sc)
2545 {
2546 rum_write(sc, RT2573_SEC_CSR0, 0);
2547 rum_write(sc, RT2573_SEC_CSR1, 0);
2548 rum_write(sc, RT2573_SEC_CSR5, 0);
2549 }
2550
2551 static int
2552 rum_init(struct rum_softc *sc)
2553 {
2554 struct ieee80211com *ic = &sc->sc_ic;
2555 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2556 uint32_t tmp;
2557 int i, ret;
2558
2559 RUM_LOCK(sc);
2560 if (sc->sc_running) {
2561 ret = 0;
2562 goto end;
2563 }
2564
2565 /* initialize MAC registers to default values */
2566 for (i = 0; i < nitems(rum_def_mac); i++)
2567 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
2568
2569 /* reset some WME parameters to default values */
2570 sc->wme_params[0].wmep_aifsn = 2;
2571 sc->wme_params[0].wmep_logcwmin = 4;
2572 sc->wme_params[0].wmep_logcwmax = 10;
2573
2574 /* set host ready */
2575 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2576 rum_write(sc, RT2573_MAC_CSR1, 0);
2577
2578 /* wait for BBP/RF to wakeup */
2579 if ((ret = rum_bbp_wakeup(sc)) != 0)
2580 goto end;
2581
2582 if ((ret = rum_bbp_init(sc)) != 0)
2583 goto end;
2584
2585 /* select default channel */
2586 rum_select_band(sc, ic->ic_curchan);
2587 rum_select_antenna(sc);
2588 rum_set_chan(sc, ic->ic_curchan);
2589
2590 /* clear STA registers */
2591 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2592
2593 /* clear security registers (if required) */
2594 if (sc->sc_clr_shkeys == 0) {
2595 rum_clr_shkey_regs(sc);
2596 sc->sc_clr_shkeys = 1;
2597 }
2598
2599 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2600
2601 /* initialize ASIC */
2602 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY);
2603
2604 /*
2605 * Allocate Tx and Rx xfer queues.
2606 */
2607 rum_setup_tx_list(sc);
2608
2609 /* update Rx filter */
2610 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2611
2612 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2613 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2614 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2615 RT2573_DROP_ACKCTS;
2616 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2617 tmp |= RT2573_DROP_TODS;
2618 if (ic->ic_promisc == 0)
2619 tmp |= RT2573_DROP_NOT_TO_ME;
2620 }
2621 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2622
2623 sc->sc_running = 1;
2624 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2625 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2626
2627 end: RUM_UNLOCK(sc);
2628
2629 if (ret != 0)
2630 rum_stop(sc);
2631
2632 return ret;
2633 }
2634
2635 static void
2636 rum_stop(struct rum_softc *sc)
2637 {
2638
2639 RUM_LOCK(sc);
2640 if (!sc->sc_running) {
2641 RUM_UNLOCK(sc);
2642 return;
2643 }
2644 sc->sc_running = 0;
2645 RUM_UNLOCK(sc);
2646
2647 /*
2648 * Drain the USB transfers, if not already drained:
2649 */
2650 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2651 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2652
2653 RUM_LOCK(sc);
2654 rum_unsetup_tx_list(sc);
2655
2656 /* disable Rx */
2657 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX);
2658
2659 /* reset ASIC */
2660 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2661 rum_write(sc, RT2573_MAC_CSR1, 0);
2662 RUM_UNLOCK(sc);
2663 }
2664
2665 static void
2666 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2667 {
2668 uint16_t reg = RT2573_MCU_CODE_BASE;
2669 usb_error_t err;
2670
2671 /* copy firmware image into NIC */
2672 for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2673 err = rum_write(sc, reg, UGETDW(ucode));
2674 if (err) {
2675 /* firmware already loaded ? */
2676 device_printf(sc->sc_dev, "Firmware load "
2677 "failure! (ignored)\n");
2678 break;
2679 }
2680 }
2681
2682 err = rum_do_mcu_request(sc, RT2573_MCU_RUN);
2683 if (err != USB_ERR_NORMAL_COMPLETION) {
2684 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2685 usbd_errstr(err));
2686 }
2687
2688 /* give the chip some time to boot */
2689 rum_pause(sc, hz / 8);
2690 }
2691
2692 static int
2693 rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval)
2694 {
2695 struct ieee80211com *ic = &sc->sc_ic;
2696 usb_error_t uerror;
2697 int exp, delay;
2698
2699 RUM_LOCK_ASSERT(sc);
2700
2701 exp = ic->ic_lintval / bintval;
2702 delay = ic->ic_lintval % bintval;
2703
2704 if (exp > RT2573_TBCN_EXP_MAX)
2705 exp = RT2573_TBCN_EXP_MAX;
2706 if (delay > RT2573_TBCN_DELAY_MAX)
2707 delay = RT2573_TBCN_DELAY_MAX;
2708
2709 uerror = rum_modbits(sc, RT2573_MAC_CSR11,
2710 RT2573_TBCN_EXP(exp) |
2711 RT2573_TBCN_DELAY(delay),
2712 RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) |
2713 RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX));
2714
2715 if (uerror != USB_ERR_NORMAL_COMPLETION)
2716 return (EIO);
2717
2718 sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay);
2719
2720 return (0);
2721 }
2722
2723 static int
2724 rum_reset(struct ieee80211vap *vap, u_long cmd)
2725 {
2726 struct ieee80211com *ic = vap->iv_ic;
2727 struct ieee80211_node *ni;
2728 struct rum_softc *sc = ic->ic_softc;
2729 int error;
2730
2731 switch (cmd) {
2732 case IEEE80211_IOC_POWERSAVE:
2733 case IEEE80211_IOC_PROTMODE:
2734 case IEEE80211_IOC_RTSTHRESHOLD:
2735 error = 0;
2736 break;
2737 case IEEE80211_IOC_POWERSAVESLEEP:
2738 ni = ieee80211_ref_node(vap->iv_bss);
2739
2740 RUM_LOCK(sc);
2741 error = rum_set_sleep_time(sc, ni->ni_intval);
2742 if (vap->iv_state == IEEE80211_S_SLEEP) {
2743 /* Use new values for wakeup timer. */
2744 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2745 rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2746 }
2747 /* XXX send reassoc */
2748 RUM_UNLOCK(sc);
2749
2750 ieee80211_free_node(ni);
2751 break;
2752 default:
2753 error = ENETRESET;
2754 break;
2755 }
2756
2757 return (error);
2758 }
2759
2760 static int
2761 rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2762 {
2763 struct ieee80211com *ic = vap->iv_ic;
2764 struct rum_vap *rvp = RUM_VAP(vap);
2765 struct mbuf *m = rvp->bcn_mbuf;
2766 const struct ieee80211_txparam *tp;
2767 struct rum_tx_desc desc;
2768
2769 RUM_LOCK_ASSERT(sc);
2770
2771 if (m == NULL)
2772 return EINVAL;
2773 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC)
2774 return EINVAL;
2775
2776 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2777 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP,
2778 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate);
2779
2780 /* copy the Tx descriptor into NIC memory */
2781 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc,
2782 RT2573_TX_DESC_SIZE) != 0)
2783 return EIO;
2784
2785 /* copy beacon header and payload into NIC memory */
2786 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE,
2787 mtod(m, uint8_t *), m->m_pkthdr.len) != 0)
2788 return EIO;
2789
2790 return 0;
2791 }
2792
2793 static int
2794 rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2795 {
2796 struct rum_vap *rvp = RUM_VAP(vap);
2797 struct ieee80211_node *ni = vap->iv_bss;
2798 struct mbuf *m;
2799
2800 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
2801 return EINVAL;
2802
2803 m = ieee80211_beacon_alloc(ni);
2804 if (m == NULL)
2805 return ENOMEM;
2806
2807 if (rvp->bcn_mbuf != NULL)
2808 m_freem(rvp->bcn_mbuf);
2809
2810 rvp->bcn_mbuf = m;
2811
2812 return (rum_set_beacon(sc, vap));
2813 }
2814
2815 static void
2816 rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data,
2817 uint8_t rvp_id)
2818 {
2819 struct ieee80211vap *vap = data->vap;
2820
2821 rum_set_beacon(sc, vap);
2822 }
2823
2824 static void
2825 rum_update_beacon(struct ieee80211vap *vap, int item)
2826 {
2827 struct ieee80211com *ic = vap->iv_ic;
2828 struct rum_softc *sc = ic->ic_softc;
2829 struct rum_vap *rvp = RUM_VAP(vap);
2830 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
2831 struct ieee80211_node *ni = vap->iv_bss;
2832 struct mbuf *m = rvp->bcn_mbuf;
2833 int mcast = 0;
2834
2835 RUM_LOCK(sc);
2836 if (m == NULL) {
2837 m = ieee80211_beacon_alloc(ni);
2838 if (m == NULL) {
2839 device_printf(sc->sc_dev,
2840 "%s: could not allocate beacon frame\n", __func__);
2841 RUM_UNLOCK(sc);
2842 return;
2843 }
2844 rvp->bcn_mbuf = m;
2845 }
2846
2847 switch (item) {
2848 case IEEE80211_BEACON_ERP:
2849 rum_update_slot(ic);
2850 break;
2851 case IEEE80211_BEACON_TIM:
2852 mcast = 1; /*TODO*/
2853 break;
2854 default:
2855 break;
2856 }
2857 RUM_UNLOCK(sc);
2858
2859 setbit(bo->bo_flags, item);
2860 ieee80211_beacon_update(ni, m, mcast);
2861
2862 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb);
2863 }
2864
2865 static int
2866 rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k,
2867 uint16_t base)
2868 {
2869
2870 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen))
2871 return EIO;
2872
2873 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
2874 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
2875 k->wk_txmic, 8))
2876 return EIO;
2877 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
2878 k->wk_rxmic, 8))
2879 return EIO;
2880 }
2881
2882 return 0;
2883 }
2884
2885 static void
2886 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data,
2887 uint8_t rvp_id)
2888 {
2889 struct ieee80211_key *k = &data->key;
2890 uint8_t mode;
2891
2892 if (sc->sc_clr_shkeys == 0) {
2893 rum_clr_shkey_regs(sc);
2894 sc->sc_clr_shkeys = 1;
2895 }
2896
2897 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2898 if (mode == 0)
2899 goto print_err;
2900
2901 DPRINTFN(1, "setting group key %d for vap %d, mode %d "
2902 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2903 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2904 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2905
2906 /* Install the key. */
2907 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0)
2908 goto print_err;
2909
2910 /* Set cipher mode. */
2911 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2912 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX,
2913 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX)
2914 != 0)
2915 goto print_err;
2916
2917 /* Mark this key as valid. */
2918 if (rum_setbits(sc, RT2573_SEC_CSR0,
2919 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0)
2920 goto print_err;
2921
2922 return;
2923
2924 print_err:
2925 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n",
2926 __func__, k->wk_keyix, rvp_id);
2927 }
2928
2929 static void
2930 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data,
2931 uint8_t rvp_id)
2932 {
2933 struct ieee80211_key *k = &data->key;
2934
2935 DPRINTF("%s: removing group key %d for vap %d\n", __func__,
2936 k->wk_keyix, rvp_id);
2937 rum_clrbits(sc,
2938 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2939 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX);
2940 rum_clrbits(sc, RT2573_SEC_CSR0,
2941 rvp_id * RT2573_SKEY_MAX + k->wk_keyix);
2942 }
2943
2944 static void
2945 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data,
2946 uint8_t rvp_id)
2947 {
2948 struct ieee80211_key *k = &data->key;
2949 uint8_t buf[IEEE80211_ADDR_LEN + 1];
2950 uint8_t mode;
2951
2952 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2953 if (mode == 0)
2954 goto print_err;
2955
2956 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d "
2957 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2958 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2959 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2960
2961 /* Install the key. */
2962 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0)
2963 goto print_err;
2964
2965 IEEE80211_ADDR_COPY(buf, k->wk_macaddr);
2966 buf[IEEE80211_ADDR_LEN] = mode;
2967
2968 /* Set transmitter address and cipher mode. */
2969 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix),
2970 buf, sizeof buf) != 0)
2971 goto print_err;
2972
2973 /* Enable key table lookup for this vap. */
2974 if (sc->vap_key_count[rvp_id]++ == 0)
2975 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0)
2976 goto print_err;
2977
2978 /* Mark this key as valid. */
2979 if (rum_setbits(sc,
2980 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2981 1 << (k->wk_keyix % 32)) != 0)
2982 goto print_err;
2983
2984 return;
2985
2986 print_err:
2987 device_printf(sc->sc_dev,
2988 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix,
2989 rvp_id);
2990 }
2991
2992 static void
2993 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data,
2994 uint8_t rvp_id)
2995 {
2996 struct ieee80211_key *k = &data->key;
2997
2998 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix);
2999 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
3000 1 << (k->wk_keyix % 32));
3001 sc->keys_bmap &= ~(1ULL << k->wk_keyix);
3002 if (--sc->vap_key_count[rvp_id] == 0)
3003 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id);
3004 }
3005
3006 static int
3007 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
3008 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
3009 {
3010 struct rum_softc *sc = vap->iv_ic->ic_softc;
3011 uint8_t i;
3012
3013 if (!(&vap->iv_nw_keys[0] <= k &&
3014 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) {
3015 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
3016 RUM_LOCK(sc);
3017 for (i = 0; i < RT2573_ADDR_MAX; i++) {
3018 if ((sc->keys_bmap & (1ULL << i)) == 0) {
3019 sc->keys_bmap |= (1ULL << i);
3020 *keyix = i;
3021 break;
3022 }
3023 }
3024 RUM_UNLOCK(sc);
3025 if (i == RT2573_ADDR_MAX) {
3026 device_printf(sc->sc_dev,
3027 "%s: no free space in the key table\n",
3028 __func__);
3029 return 0;
3030 }
3031 } else
3032 *keyix = 0;
3033 } else {
3034 *keyix = ieee80211_crypto_get_key_wepidx(vap, k);
3035 }
3036 *rxkeyix = *keyix;
3037 return 1;
3038 }
3039
3040 static int
3041 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
3042 {
3043 struct rum_softc *sc = vap->iv_ic->ic_softc;
3044 int group;
3045
3046 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3047 /* Not for us. */
3048 return 1;
3049 }
3050
3051 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3052
3053 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3054 group ? rum_group_key_set_cb : rum_pair_key_set_cb);
3055 }
3056
3057 static int
3058 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
3059 {
3060 struct rum_softc *sc = vap->iv_ic->ic_softc;
3061 int group;
3062
3063 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3064 /* Not for us. */
3065 return 1;
3066 }
3067
3068 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3069
3070 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3071 group ? rum_group_key_del_cb : rum_pair_key_del_cb);
3072 }
3073
3074 static int
3075 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3076 const struct ieee80211_bpf_params *params)
3077 {
3078 struct rum_softc *sc = ni->ni_ic->ic_softc;
3079 int ret;
3080
3081 RUM_LOCK(sc);
3082 /* prevent management frames from being sent if we're not ready */
3083 if (!sc->sc_running) {
3084 ret = ENETDOWN;
3085 goto bad;
3086 }
3087 if (sc->tx_nfree < RUM_TX_MINFREE) {
3088 ret = EIO;
3089 goto bad;
3090 }
3091
3092 if (params == NULL) {
3093 /*
3094 * Legacy path; interpret frame contents to decide
3095 * precisely how to send the frame.
3096 */
3097 if ((ret = rum_tx_mgt(sc, m, ni)) != 0)
3098 goto bad;
3099 } else {
3100 /*
3101 * Caller supplied explicit parameters to use in
3102 * sending the frame.
3103 */
3104 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0)
3105 goto bad;
3106 }
3107 RUM_UNLOCK(sc);
3108
3109 return 0;
3110 bad:
3111 RUM_UNLOCK(sc);
3112 m_freem(m);
3113 return ret;
3114 }
3115
3116 static void
3117 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
3118 {
3119 struct ieee80211vap *vap = ni->ni_vap;
3120 struct rum_vap *rvp = RUM_VAP(vap);
3121
3122 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
3123 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
3124
3125 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3126 }
3127
3128 static void
3129 rum_ratectl_timeout(void *arg)
3130 {
3131 struct rum_vap *rvp = arg;
3132 struct ieee80211vap *vap = &rvp->vap;
3133 struct ieee80211com *ic = vap->iv_ic;
3134
3135 ieee80211_runtask(ic, &rvp->ratectl_task);
3136 }
3137
3138 static void
3139 rum_ratectl_task(void *arg, int pending)
3140 {
3141 struct rum_vap *rvp = arg;
3142 struct ieee80211vap *vap = &rvp->vap;
3143 struct rum_softc *sc = vap->iv_ic->ic_softc;
3144 struct ieee80211_ratectl_tx_stats *txs = &sc->sc_txs;
3145 int ok[3], fail;
3146
3147 RUM_LOCK(sc);
3148 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */
3149 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
3150
3151 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */
3152 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */
3153 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */
3154 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
3155
3156 txs->flags = IEEE80211_RATECTL_TX_STATS_RETRIES;
3157 txs->nframes = ok[0] + ok[1] + ok[2] + fail;
3158 txs->nsuccess = txs->nframes - fail;
3159 /* XXX at least */
3160 txs->nretries = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1);
3161
3162 if (txs->nframes != 0)
3163 ieee80211_ratectl_tx_update(vap, txs);
3164
3165 /* count TX retry-fail as Tx errors */
3166 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail);
3167
3168 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3169 RUM_UNLOCK(sc);
3170 }
3171
3172 static void
3173 rum_scan_start(struct ieee80211com *ic)
3174 {
3175 struct rum_softc *sc = ic->ic_softc;
3176
3177 RUM_LOCK(sc);
3178 rum_abort_tsf_sync(sc);
3179 rum_set_bssid(sc, ieee80211broadcastaddr);
3180 RUM_UNLOCK(sc);
3181
3182 }
3183
3184 static void
3185 rum_scan_end(struct ieee80211com *ic)
3186 {
3187 struct rum_softc *sc = ic->ic_softc;
3188
3189 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
3190 RUM_LOCK(sc);
3191 if (ic->ic_opmode != IEEE80211_M_AHDEMO)
3192 rum_enable_tsf_sync(sc);
3193 else
3194 rum_enable_tsf(sc);
3195 rum_set_bssid(sc, sc->sc_bssid);
3196 RUM_UNLOCK(sc);
3197 }
3198 }
3199
3200 static void
3201 rum_set_channel(struct ieee80211com *ic)
3202 {
3203 struct rum_softc *sc = ic->ic_softc;
3204
3205 RUM_LOCK(sc);
3206 rum_set_chan(sc, ic->ic_curchan);
3207 RUM_UNLOCK(sc);
3208 }
3209
3210 static void
3211 rum_getradiocaps(struct ieee80211com *ic,
3212 int maxchans, int *nchans, struct ieee80211_channel chans[])
3213 {
3214 struct rum_softc *sc = ic->ic_softc;
3215 uint8_t bands[IEEE80211_MODE_BYTES];
3216
3217 memset(bands, 0, sizeof(bands));
3218 setbit(bands, IEEE80211_MODE_11B);
3219 setbit(bands, IEEE80211_MODE_11G);
3220 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0);
3221
3222 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
3223 setbit(bands, IEEE80211_MODE_11A);
3224 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
3225 rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0);
3226 }
3227 }
3228
3229 static int
3230 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
3231 {
3232 struct ieee80211com *ic = &sc->sc_ic;
3233 int lna, agc, rssi;
3234
3235 lna = (raw >> 5) & 0x3;
3236 agc = raw & 0x1f;
3237
3238 if (lna == 0) {
3239 /*
3240 * No RSSI mapping
3241 *
3242 * NB: Since RSSI is relative to noise floor, -1 is
3243 * adequate for caller to know error happened.
3244 */
3245 return -1;
3246 }
3247
3248 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
3249
3250 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
3251 rssi += sc->rssi_2ghz_corr;
3252
3253 if (lna == 1)
3254 rssi -= 64;
3255 else if (lna == 2)
3256 rssi -= 74;
3257 else if (lna == 3)
3258 rssi -= 90;
3259 } else {
3260 rssi += sc->rssi_5ghz_corr;
3261
3262 if (!sc->ext_5ghz_lna && lna != 1)
3263 rssi += 4;
3264
3265 if (lna == 1)
3266 rssi -= 64;
3267 else if (lna == 2)
3268 rssi -= 86;
3269 else if (lna == 3)
3270 rssi -= 100;
3271 }
3272 return rssi;
3273 }
3274
3275 static int
3276 rum_pause(struct rum_softc *sc, int timeout)
3277 {
3278
3279 usb_pause_mtx(&sc->sc_mtx, timeout);
3280 return (0);
3281 }
3282
3283 static device_method_t rum_methods[] = {
3284 /* Device interface */
3285 DEVMETHOD(device_probe, rum_match),
3286 DEVMETHOD(device_attach, rum_attach),
3287 DEVMETHOD(device_detach, rum_detach),
3288 DEVMETHOD_END
3289 };
3290
3291 static driver_t rum_driver = {
3292 .name = "rum",
3293 .methods = rum_methods,
3294 .size = sizeof(struct rum_softc),
3295 };
3296
3297 DRIVER_MODULE(rum, uhub, rum_driver, NULL, NULL);
3298 MODULE_DEPEND(rum, wlan, 1, 1, 1);
3299 MODULE_DEPEND(rum, usb, 1, 1, 1);
3300 MODULE_VERSION(rum, 1);
3301 USB_PNP_HOST_INFO(rum_devs);
Cache object: 3dfc7f4679dce0ac91af7e0f66c526f6
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