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 <sys/param.h>
31 #include <sys/sockio.h>
32 #include <sys/sysctl.h>
33 #include <sys/lock.h>
34 #include <sys/mutex.h>
35 #include <sys/mbuf.h>
36 #include <sys/kernel.h>
37 #include <sys/socket.h>
38 #include <sys/systm.h>
39 #include <sys/malloc.h>
40 #include <sys/module.h>
41 #include <sys/bus.h>
42 #include <sys/endian.h>
43 #include <sys/kdb.h>
44
45 #include <net/bpf.h>
46 #include <net/if.h>
47 #include <net/if_var.h>
48 #include <net/if_arp.h>
49 #include <net/ethernet.h>
50 #include <net/if_dl.h>
51 #include <net/if_media.h>
52 #include <net/if_types.h>
53
54 #ifdef INET
55 #include <netinet/in.h>
56 #include <netinet/in_systm.h>
57 #include <netinet/in_var.h>
58 #include <netinet/if_ether.h>
59 #include <netinet/ip.h>
60 #endif
61
62 #include <net80211/ieee80211_var.h>
63 #include <net80211/ieee80211_regdomain.h>
64 #include <net80211/ieee80211_radiotap.h>
65 #include <net80211/ieee80211_ratectl.h>
66
67 #include <dev/usb/usb.h>
68 #include <dev/usb/usbdi.h>
69 #include "usbdevs.h"
70
71 #define USB_DEBUG_VAR rum_debug
72 #include <dev/usb/usb_debug.h>
73
74 #include <dev/usb/wlan/if_rumreg.h>
75 #include <dev/usb/wlan/if_rumvar.h>
76 #include <dev/usb/wlan/if_rumfw.h>
77
78 #ifdef USB_DEBUG
79 static int rum_debug = 0;
80
81 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
82 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0,
83 "Debug level");
84 #endif
85
86 static const STRUCT_USB_HOST_ID rum_devs[] = {
87 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
88 RUM_DEV(ABOCOM, HWU54DM),
89 RUM_DEV(ABOCOM, RT2573_2),
90 RUM_DEV(ABOCOM, RT2573_3),
91 RUM_DEV(ABOCOM, RT2573_4),
92 RUM_DEV(ABOCOM, WUG2700),
93 RUM_DEV(AMIT, CGWLUSB2GO),
94 RUM_DEV(ASUS, RT2573_1),
95 RUM_DEV(ASUS, RT2573_2),
96 RUM_DEV(BELKIN, F5D7050A),
97 RUM_DEV(BELKIN, F5D9050V3),
98 RUM_DEV(CISCOLINKSYS, WUSB54GC),
99 RUM_DEV(CISCOLINKSYS, WUSB54GR),
100 RUM_DEV(CONCEPTRONIC2, C54RU2),
101 RUM_DEV(COREGA, CGWLUSB2GL),
102 RUM_DEV(COREGA, CGWLUSB2GPX),
103 RUM_DEV(DICKSMITH, CWD854F),
104 RUM_DEV(DICKSMITH, RT2573),
105 RUM_DEV(EDIMAX, EW7318USG),
106 RUM_DEV(DLINK2, DWLG122C1),
107 RUM_DEV(DLINK2, WUA1340),
108 RUM_DEV(DLINK2, DWA111),
109 RUM_DEV(DLINK2, DWA110),
110 RUM_DEV(GIGABYTE, GNWB01GS),
111 RUM_DEV(GIGABYTE, GNWI05GS),
112 RUM_DEV(GIGASET, RT2573),
113 RUM_DEV(GOODWAY, RT2573),
114 RUM_DEV(GUILLEMOT, HWGUSB254LB),
115 RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
116 RUM_DEV(HUAWEI3COM, WUB320G),
117 RUM_DEV(MELCO, G54HP),
118 RUM_DEV(MELCO, SG54HP),
119 RUM_DEV(MELCO, SG54HG),
120 RUM_DEV(MELCO, WLIUCG),
121 RUM_DEV(MELCO, WLRUCG),
122 RUM_DEV(MELCO, WLRUCGAOSS),
123 RUM_DEV(MSI, RT2573_1),
124 RUM_DEV(MSI, RT2573_2),
125 RUM_DEV(MSI, RT2573_3),
126 RUM_DEV(MSI, RT2573_4),
127 RUM_DEV(NOVATECH, RT2573),
128 RUM_DEV(PLANEX2, GWUS54HP),
129 RUM_DEV(PLANEX2, GWUS54MINI2),
130 RUM_DEV(PLANEX2, GWUSMM),
131 RUM_DEV(QCOM, RT2573),
132 RUM_DEV(QCOM, RT2573_2),
133 RUM_DEV(QCOM, RT2573_3),
134 RUM_DEV(RALINK, RT2573),
135 RUM_DEV(RALINK, RT2573_2),
136 RUM_DEV(RALINK, RT2671),
137 RUM_DEV(SITECOMEU, WL113R2),
138 RUM_DEV(SITECOMEU, WL172),
139 RUM_DEV(SPARKLAN, RT2573),
140 RUM_DEV(SURECOM, RT2573),
141 #undef RUM_DEV
142 };
143
144 static device_probe_t rum_match;
145 static device_attach_t rum_attach;
146 static device_detach_t rum_detach;
147
148 static usb_callback_t rum_bulk_read_callback;
149 static usb_callback_t rum_bulk_write_callback;
150
151 static usb_error_t rum_do_request(struct rum_softc *sc,
152 struct usb_device_request *req, void *data);
153 static usb_error_t rum_do_mcu_request(struct rum_softc *sc, int);
154 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
155 const char [IFNAMSIZ], int, enum ieee80211_opmode,
156 int, const uint8_t [IEEE80211_ADDR_LEN],
157 const uint8_t [IEEE80211_ADDR_LEN]);
158 static void rum_vap_delete(struct ieee80211vap *);
159 static void rum_cmdq_cb(void *, int);
160 static int rum_cmd_sleepable(struct rum_softc *, const void *,
161 size_t, uint8_t, CMD_FUNC_PROTO);
162 static void rum_tx_free(struct rum_tx_data *, int);
163 static void rum_setup_tx_list(struct rum_softc *);
164 static void rum_unsetup_tx_list(struct rum_softc *);
165 static void rum_beacon_miss(struct ieee80211vap *);
166 static void rum_sta_recv_mgmt(struct ieee80211_node *,
167 struct mbuf *, int,
168 const struct ieee80211_rx_stats *, int, int);
169 static int rum_set_power_state(struct rum_softc *, int);
170 static int rum_newstate(struct ieee80211vap *,
171 enum ieee80211_state, int);
172 static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int);
173 static void rum_setup_tx_desc(struct rum_softc *,
174 struct rum_tx_desc *, struct ieee80211_key *,
175 uint32_t, uint8_t, uint8_t, int, int, int);
176 static uint32_t rum_tx_crypto_flags(struct rum_softc *,
177 struct ieee80211_node *,
178 const struct ieee80211_key *);
179 static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
180 struct ieee80211_node *);
181 static int rum_tx_raw(struct rum_softc *, struct mbuf *,
182 struct ieee80211_node *,
183 const struct ieee80211_bpf_params *);
184 static int rum_tx_data(struct rum_softc *, struct mbuf *,
185 struct ieee80211_node *);
186 static int rum_transmit(struct ieee80211com *, struct mbuf *);
187 static void rum_start(struct rum_softc *);
188 static void rum_parent(struct ieee80211com *);
189 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
190 int);
191 static uint32_t rum_read(struct rum_softc *, uint16_t);
192 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
193 int);
194 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
195 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *,
196 size_t);
197 static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t);
198 static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t);
199 static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t,
200 uint32_t);
201 static int rum_bbp_busy(struct rum_softc *);
202 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
203 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
204 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
205 static void rum_select_antenna(struct rum_softc *);
206 static void rum_enable_mrr(struct rum_softc *);
207 static void rum_set_txpreamble(struct rum_softc *);
208 static void rum_set_basicrates(struct rum_softc *);
209 static void rum_select_band(struct rum_softc *,
210 struct ieee80211_channel *);
211 static void rum_set_chan(struct rum_softc *,
212 struct ieee80211_channel *);
213 static void rum_set_maxretry(struct rum_softc *,
214 struct ieee80211vap *);
215 static int rum_enable_tsf_sync(struct rum_softc *);
216 static void rum_enable_tsf(struct rum_softc *);
217 static void rum_abort_tsf_sync(struct rum_softc *);
218 static void rum_get_tsf(struct rum_softc *, uint64_t *);
219 static void rum_update_slot_cb(struct rum_softc *,
220 union sec_param *, uint8_t);
221 static void rum_update_slot(struct ieee80211com *);
222 static int rum_wme_update(struct ieee80211com *);
223 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
224 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
225 static void rum_update_mcast(struct ieee80211com *);
226 static void rum_update_promisc(struct ieee80211com *);
227 static void rum_setpromisc(struct rum_softc *);
228 static const char *rum_get_rf(int);
229 static void rum_read_eeprom(struct rum_softc *);
230 static int rum_bbp_wakeup(struct rum_softc *);
231 static int rum_bbp_init(struct rum_softc *);
232 static void rum_clr_shkey_regs(struct rum_softc *);
233 static int rum_init(struct rum_softc *);
234 static void rum_stop(struct rum_softc *);
235 static void rum_load_microcode(struct rum_softc *, const uint8_t *,
236 size_t);
237 static int rum_set_sleep_time(struct rum_softc *, uint16_t);
238 static int rum_reset(struct ieee80211vap *, u_long);
239 static int rum_set_beacon(struct rum_softc *,
240 struct ieee80211vap *);
241 static int rum_alloc_beacon(struct rum_softc *,
242 struct ieee80211vap *);
243 static void rum_update_beacon_cb(struct rum_softc *,
244 union sec_param *, uint8_t);
245 static void rum_update_beacon(struct ieee80211vap *, int);
246 static int rum_common_key_set(struct rum_softc *,
247 struct ieee80211_key *, uint16_t);
248 static void rum_group_key_set_cb(struct rum_softc *,
249 union sec_param *, uint8_t);
250 static void rum_group_key_del_cb(struct rum_softc *,
251 union sec_param *, uint8_t);
252 static void rum_pair_key_set_cb(struct rum_softc *,
253 union sec_param *, uint8_t);
254 static void rum_pair_key_del_cb(struct rum_softc *,
255 union sec_param *, uint8_t);
256 static int rum_key_alloc(struct ieee80211vap *,
257 struct ieee80211_key *, ieee80211_keyix *,
258 ieee80211_keyix *);
259 static int rum_key_set(struct ieee80211vap *,
260 const struct ieee80211_key *);
261 static int rum_key_delete(struct ieee80211vap *,
262 const struct ieee80211_key *);
263 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
264 const struct ieee80211_bpf_params *);
265 static void rum_scan_start(struct ieee80211com *);
266 static void rum_scan_end(struct ieee80211com *);
267 static void rum_set_channel(struct ieee80211com *);
268 static void rum_getradiocaps(struct ieee80211com *, int, int *,
269 struct ieee80211_channel[]);
270 static int rum_get_rssi(struct rum_softc *, uint8_t);
271 static void rum_ratectl_start(struct rum_softc *,
272 struct ieee80211_node *);
273 static void rum_ratectl_timeout(void *);
274 static void rum_ratectl_task(void *, int);
275 static int rum_pause(struct rum_softc *, int);
276
277 static const struct {
278 uint32_t reg;
279 uint32_t val;
280 } rum_def_mac[] = {
281 { RT2573_TXRX_CSR0, 0x025fb032 },
282 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
283 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
284 { RT2573_TXRX_CSR3, 0x00858687 },
285 { RT2573_TXRX_CSR7, 0x2e31353b },
286 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
287 { RT2573_TXRX_CSR15, 0x0000000f },
288 { RT2573_MAC_CSR6, 0x00000fff },
289 { RT2573_MAC_CSR8, 0x016c030a },
290 { RT2573_MAC_CSR10, 0x00000718 },
291 { RT2573_MAC_CSR12, 0x00000004 },
292 { RT2573_MAC_CSR13, 0x00007f00 },
293 { RT2573_SEC_CSR2, 0x00000000 },
294 { RT2573_SEC_CSR3, 0x00000000 },
295 { RT2573_SEC_CSR4, 0x00000000 },
296 { RT2573_PHY_CSR1, 0x000023b0 },
297 { RT2573_PHY_CSR5, 0x00040a06 },
298 { RT2573_PHY_CSR6, 0x00080606 },
299 { RT2573_PHY_CSR7, 0x00000408 },
300 { RT2573_AIFSN_CSR, 0x00002273 },
301 { RT2573_CWMIN_CSR, 0x00002344 },
302 { RT2573_CWMAX_CSR, 0x000034aa }
303 };
304
305 static const struct {
306 uint8_t reg;
307 uint8_t val;
308 } rum_def_bbp[] = {
309 { 3, 0x80 },
310 { 15, 0x30 },
311 { 17, 0x20 },
312 { 21, 0xc8 },
313 { 22, 0x38 },
314 { 23, 0x06 },
315 { 24, 0xfe },
316 { 25, 0x0a },
317 { 26, 0x0d },
318 { 32, 0x0b },
319 { 34, 0x12 },
320 { 37, 0x07 },
321 { 39, 0xf8 },
322 { 41, 0x60 },
323 { 53, 0x10 },
324 { 54, 0x18 },
325 { 60, 0x10 },
326 { 61, 0x04 },
327 { 62, 0x04 },
328 { 75, 0xfe },
329 { 86, 0xfe },
330 { 88, 0xfe },
331 { 90, 0x0f },
332 { 99, 0x00 },
333 { 102, 0x16 },
334 { 107, 0x04 }
335 };
336
337 static const uint8_t rum_chan_5ghz[] =
338 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64,
339 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
340 149, 153, 157, 161, 165 };
341
342 static const struct rfprog {
343 uint8_t chan;
344 uint32_t r1, r2, r3, r4;
345 } rum_rf5226[] = {
346 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
347 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
348 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
349 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
350 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
351 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
352 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
353 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
354 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
355 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
356 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
357 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
358 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
359 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
360
361 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
362 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
363 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
364 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
365
366 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
367 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
368 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
369 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
370 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
371 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
372 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
373 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
374
375 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
376 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
377 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
378 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
379 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
380 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
381 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
382 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
383 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
384 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
385 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
386
387 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
388 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
389 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
390 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
391 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
392 }, rum_rf5225[] = {
393 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
394 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
395 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
396 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
397 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
398 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
399 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
400 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
401 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
402 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
403 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
404 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
405 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
406 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
407
408 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
409 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
410 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
411 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
412
413 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
414 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
415 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
416 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
417 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
418 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
419 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
420 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
421
422 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
423 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
424 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
425 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
426 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
427 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
428 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
429 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
430 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
431 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
432 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
433
434 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
435 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
436 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
437 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
438 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
439 };
440
441 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
442 [RUM_BULK_WR] = {
443 .type = UE_BULK,
444 .endpoint = UE_ADDR_ANY,
445 .direction = UE_DIR_OUT,
446 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
447 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
448 .callback = rum_bulk_write_callback,
449 .timeout = 5000, /* ms */
450 },
451 [RUM_BULK_RD] = {
452 .type = UE_BULK,
453 .endpoint = UE_ADDR_ANY,
454 .direction = UE_DIR_IN,
455 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
456 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
457 .callback = rum_bulk_read_callback,
458 },
459 };
460
461 static int
rum_match(device_t self)462 rum_match(device_t self)
463 {
464 struct usb_attach_arg *uaa = device_get_ivars(self);
465
466 if (uaa->usb_mode != USB_MODE_HOST)
467 return (ENXIO);
468 if (uaa->info.bConfigIndex != 0)
469 return (ENXIO);
470 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
471 return (ENXIO);
472
473 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
474 }
475
476 static int
rum_attach(device_t self)477 rum_attach(device_t self)
478 {
479 struct usb_attach_arg *uaa = device_get_ivars(self);
480 struct rum_softc *sc = device_get_softc(self);
481 struct ieee80211com *ic = &sc->sc_ic;
482 uint32_t tmp;
483 uint8_t iface_index;
484 int error, ntries;
485
486 device_set_usb_desc(self);
487 sc->sc_udev = uaa->device;
488 sc->sc_dev = self;
489
490 RUM_LOCK_INIT(sc);
491 RUM_CMDQ_LOCK_INIT(sc);
492 mbufq_init(&sc->sc_snd, ifqmaxlen);
493
494 iface_index = RT2573_IFACE_INDEX;
495 error = usbd_transfer_setup(uaa->device, &iface_index,
496 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
497 if (error) {
498 device_printf(self, "could not allocate USB transfers, "
499 "err=%s\n", usbd_errstr(error));
500 goto detach;
501 }
502
503 RUM_LOCK(sc);
504 /* retrieve RT2573 rev. no */
505 for (ntries = 0; ntries < 100; ntries++) {
506 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
507 break;
508 if (rum_pause(sc, hz / 100))
509 break;
510 }
511 if (ntries == 100) {
512 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
513 RUM_UNLOCK(sc);
514 goto detach;
515 }
516
517 /* retrieve MAC address and various other things from EEPROM */
518 rum_read_eeprom(sc);
519
520 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
521 tmp, rum_get_rf(sc->rf_rev));
522
523 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
524 RUM_UNLOCK(sc);
525
526 ic->ic_softc = sc;
527 ic->ic_name = device_get_nameunit(self);
528 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
529
530 /* set device capabilities */
531 ic->ic_caps =
532 IEEE80211_C_STA /* station mode supported */
533 | IEEE80211_C_IBSS /* IBSS mode supported */
534 | IEEE80211_C_MONITOR /* monitor mode supported */
535 | IEEE80211_C_HOSTAP /* HostAp mode supported */
536 | IEEE80211_C_AHDEMO /* adhoc demo mode */
537 | IEEE80211_C_TXPMGT /* tx power management */
538 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
539 | IEEE80211_C_SHSLOT /* short slot time supported */
540 | IEEE80211_C_BGSCAN /* bg scanning supported */
541 | IEEE80211_C_WPA /* 802.11i */
542 | IEEE80211_C_WME /* 802.11e */
543 | IEEE80211_C_PMGT /* Station-side power mgmt */
544 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */
545 ;
546
547 ic->ic_cryptocaps =
548 IEEE80211_CRYPTO_WEP |
549 IEEE80211_CRYPTO_AES_CCM |
550 IEEE80211_CRYPTO_TKIPMIC |
551 IEEE80211_CRYPTO_TKIP;
552
553 rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
554 ic->ic_channels);
555
556 ieee80211_ifattach(ic);
557 ic->ic_update_promisc = rum_update_promisc;
558 ic->ic_raw_xmit = rum_raw_xmit;
559 ic->ic_scan_start = rum_scan_start;
560 ic->ic_scan_end = rum_scan_end;
561 ic->ic_set_channel = rum_set_channel;
562 ic->ic_getradiocaps = rum_getradiocaps;
563 ic->ic_transmit = rum_transmit;
564 ic->ic_parent = rum_parent;
565 ic->ic_vap_create = rum_vap_create;
566 ic->ic_vap_delete = rum_vap_delete;
567 ic->ic_updateslot = rum_update_slot;
568 ic->ic_wme.wme_update = rum_wme_update;
569 ic->ic_update_mcast = rum_update_mcast;
570
571 ieee80211_radiotap_attach(ic,
572 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
573 RT2573_TX_RADIOTAP_PRESENT,
574 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
575 RT2573_RX_RADIOTAP_PRESENT);
576
577 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc);
578
579 if (bootverbose)
580 ieee80211_announce(ic);
581
582 return (0);
583
584 detach:
585 rum_detach(self);
586 return (ENXIO); /* failure */
587 }
588
589 static int
rum_detach(device_t self)590 rum_detach(device_t self)
591 {
592 struct rum_softc *sc = device_get_softc(self);
593 struct ieee80211com *ic = &sc->sc_ic;
594
595 /* Prevent further ioctls */
596 RUM_LOCK(sc);
597 sc->sc_detached = 1;
598 RUM_UNLOCK(sc);
599
600 /* stop all USB transfers */
601 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
602
603 /* free TX list, if any */
604 RUM_LOCK(sc);
605 rum_unsetup_tx_list(sc);
606 RUM_UNLOCK(sc);
607
608 if (ic->ic_softc == sc) {
609 ieee80211_draintask(ic, &sc->cmdq_task);
610 ieee80211_ifdetach(ic);
611 }
612
613 mbufq_drain(&sc->sc_snd);
614 RUM_CMDQ_LOCK_DESTROY(sc);
615 RUM_LOCK_DESTROY(sc);
616
617 return (0);
618 }
619
620 static usb_error_t
rum_do_request(struct rum_softc * sc,struct usb_device_request * req,void * data)621 rum_do_request(struct rum_softc *sc,
622 struct usb_device_request *req, void *data)
623 {
624 usb_error_t err;
625 int ntries = 10;
626
627 while (ntries--) {
628 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
629 req, data, 0, NULL, 250 /* ms */);
630 if (err == 0)
631 break;
632
633 DPRINTFN(1, "Control request failed, %s (retrying)\n",
634 usbd_errstr(err));
635 if (rum_pause(sc, hz / 100))
636 break;
637 }
638 return (err);
639 }
640
641 static usb_error_t
rum_do_mcu_request(struct rum_softc * sc,int request)642 rum_do_mcu_request(struct rum_softc *sc, int request)
643 {
644 struct usb_device_request req;
645
646 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
647 req.bRequest = RT2573_MCU_CNTL;
648 USETW(req.wValue, request);
649 USETW(req.wIndex, 0);
650 USETW(req.wLength, 0);
651
652 return (rum_do_request(sc, &req, NULL));
653 }
654
655 static struct ieee80211vap *
rum_vap_create(struct ieee80211com * ic,const char name[IFNAMSIZ],int unit,enum ieee80211_opmode opmode,int flags,const uint8_t bssid[IEEE80211_ADDR_LEN],const uint8_t mac[IEEE80211_ADDR_LEN])656 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
657 enum ieee80211_opmode opmode, int flags,
658 const uint8_t bssid[IEEE80211_ADDR_LEN],
659 const uint8_t mac[IEEE80211_ADDR_LEN])
660 {
661 struct rum_softc *sc = ic->ic_softc;
662 struct rum_vap *rvp;
663 struct ieee80211vap *vap;
664
665 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
666 return NULL;
667 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO);
668 vap = &rvp->vap;
669 /* enable s/w bmiss handling for sta mode */
670
671 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
672 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
673 /* out of memory */
674 free(rvp, M_80211_VAP);
675 return (NULL);
676 }
677
678 /* override state transition machine */
679 rvp->newstate = vap->iv_newstate;
680 vap->iv_newstate = rum_newstate;
681 vap->iv_key_alloc = rum_key_alloc;
682 vap->iv_key_set = rum_key_set;
683 vap->iv_key_delete = rum_key_delete;
684 vap->iv_update_beacon = rum_update_beacon;
685 vap->iv_reset = rum_reset;
686 vap->iv_max_aid = RT2573_ADDR_MAX;
687
688 if (opmode == IEEE80211_M_STA) {
689 /*
690 * Move device to the sleep state when
691 * beacon is received and there is no data for us.
692 *
693 * Used only for IEEE80211_S_SLEEP state.
694 */
695 rvp->recv_mgmt = vap->iv_recv_mgmt;
696 vap->iv_recv_mgmt = rum_sta_recv_mgmt;
697
698 /* Ignored while sleeping. */
699 rvp->bmiss = vap->iv_bmiss;
700 vap->iv_bmiss = rum_beacon_miss;
701 }
702
703 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
704 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
705 ieee80211_ratectl_init(vap);
706 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
707 /* complete setup */
708 ieee80211_vap_attach(vap, ieee80211_media_change,
709 ieee80211_media_status, mac);
710 ic->ic_opmode = opmode;
711 return vap;
712 }
713
714 static void
rum_vap_delete(struct ieee80211vap * vap)715 rum_vap_delete(struct ieee80211vap *vap)
716 {
717 struct rum_vap *rvp = RUM_VAP(vap);
718 struct ieee80211com *ic = vap->iv_ic;
719
720 m_freem(rvp->bcn_mbuf);
721 usb_callout_drain(&rvp->ratectl_ch);
722 ieee80211_draintask(ic, &rvp->ratectl_task);
723 ieee80211_ratectl_deinit(vap);
724 ieee80211_vap_detach(vap);
725 free(rvp, M_80211_VAP);
726 }
727
728 static void
rum_cmdq_cb(void * arg,int pending)729 rum_cmdq_cb(void *arg, int pending)
730 {
731 struct rum_softc *sc = arg;
732 struct rum_cmdq *rc;
733
734 RUM_CMDQ_LOCK(sc);
735 while (sc->cmdq[sc->cmdq_first].func != NULL) {
736 rc = &sc->cmdq[sc->cmdq_first];
737 RUM_CMDQ_UNLOCK(sc);
738
739 RUM_LOCK(sc);
740 rc->func(sc, &rc->data, rc->rvp_id);
741 RUM_UNLOCK(sc);
742
743 RUM_CMDQ_LOCK(sc);
744 memset(rc, 0, sizeof (*rc));
745 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE;
746 }
747 RUM_CMDQ_UNLOCK(sc);
748 }
749
750 static int
rum_cmd_sleepable(struct rum_softc * sc,const void * ptr,size_t len,uint8_t rvp_id,CMD_FUNC_PROTO)751 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len,
752 uint8_t rvp_id, CMD_FUNC_PROTO)
753 {
754 struct ieee80211com *ic = &sc->sc_ic;
755
756 KASSERT(len <= sizeof(union sec_param), ("buffer overflow"));
757
758 RUM_CMDQ_LOCK(sc);
759 if (sc->cmdq[sc->cmdq_last].func != NULL) {
760 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__);
761 RUM_CMDQ_UNLOCK(sc);
762
763 return EAGAIN;
764 }
765
766 if (ptr != NULL)
767 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len);
768 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id;
769 sc->cmdq[sc->cmdq_last].func = func;
770 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE;
771 RUM_CMDQ_UNLOCK(sc);
772
773 ieee80211_runtask(ic, &sc->cmdq_task);
774
775 return 0;
776 }
777
778 static void
rum_tx_free(struct rum_tx_data * data,int txerr)779 rum_tx_free(struct rum_tx_data *data, int txerr)
780 {
781 struct rum_softc *sc = data->sc;
782
783 if (data->m != NULL) {
784 ieee80211_tx_complete(data->ni, data->m, txerr);
785 data->m = NULL;
786 data->ni = NULL;
787 }
788 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
789 sc->tx_nfree++;
790 }
791
792 static void
rum_setup_tx_list(struct rum_softc * sc)793 rum_setup_tx_list(struct rum_softc *sc)
794 {
795 struct rum_tx_data *data;
796 int i;
797
798 sc->tx_nfree = 0;
799 STAILQ_INIT(&sc->tx_q);
800 STAILQ_INIT(&sc->tx_free);
801
802 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
803 data = &sc->tx_data[i];
804
805 data->sc = sc;
806 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
807 sc->tx_nfree++;
808 }
809 }
810
811 static void
rum_unsetup_tx_list(struct rum_softc * sc)812 rum_unsetup_tx_list(struct rum_softc *sc)
813 {
814 struct rum_tx_data *data;
815 int i;
816
817 /* make sure any subsequent use of the queues will fail */
818 sc->tx_nfree = 0;
819 STAILQ_INIT(&sc->tx_q);
820 STAILQ_INIT(&sc->tx_free);
821
822 /* free up all node references and mbufs */
823 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
824 data = &sc->tx_data[i];
825
826 if (data->m != NULL) {
827 m_freem(data->m);
828 data->m = NULL;
829 }
830 if (data->ni != NULL) {
831 ieee80211_free_node(data->ni);
832 data->ni = NULL;
833 }
834 }
835 }
836
837 static void
rum_beacon_miss(struct ieee80211vap * vap)838 rum_beacon_miss(struct ieee80211vap *vap)
839 {
840 struct ieee80211com *ic = vap->iv_ic;
841 struct rum_softc *sc = ic->ic_softc;
842 struct rum_vap *rvp = RUM_VAP(vap);
843 int sleep;
844
845 RUM_LOCK(sc);
846 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) {
847 DPRINTFN(12, "dropping 'sleeping' bit, "
848 "device must be awake now\n");
849
850 sc->sc_sleeping = 0;
851 }
852
853 sleep = sc->sc_sleeping;
854 RUM_UNLOCK(sc);
855
856 if (!sleep)
857 rvp->bmiss(vap);
858 #ifdef USB_DEBUG
859 else
860 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n");
861 #endif
862 }
863
864 static void
rum_sta_recv_mgmt(struct ieee80211_node * ni,struct mbuf * m,int subtype,const struct ieee80211_rx_stats * rxs,int rssi,int nf)865 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
866 const struct ieee80211_rx_stats *rxs,
867 int rssi, int nf)
868 {
869 struct ieee80211vap *vap = ni->ni_vap;
870 struct rum_softc *sc = vap->iv_ic->ic_softc;
871 struct rum_vap *rvp = RUM_VAP(vap);
872
873 if (vap->iv_state == IEEE80211_S_SLEEP &&
874 subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
875 RUM_LOCK(sc);
876 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n",
877 !!(sc->last_rx_flags & RT2573_RX_MYBSS),
878 sc->last_rx_flags);
879
880 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) ==
881 (RT2573_RX_MYBSS | RT2573_RX_BC)) {
882 /*
883 * Put it to sleep here; in case if there is a data
884 * for us, iv_recv_mgmt() will wakeup the device via
885 * SLEEP -> RUN state transition.
886 */
887 rum_set_power_state(sc, 1);
888 }
889 RUM_UNLOCK(sc);
890 }
891
892 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf);
893 }
894
895 static int
rum_set_power_state(struct rum_softc * sc,int sleep)896 rum_set_power_state(struct rum_softc *sc, int sleep)
897 {
898 usb_error_t uerror;
899
900 RUM_LOCK_ASSERT(sc);
901
902 DPRINTFN(12, "moving to %s state (sleep time %u)\n",
903 sleep ? "sleep" : "awake", sc->sc_sleep_time);
904
905 uerror = rum_do_mcu_request(sc,
906 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP);
907 if (uerror != USB_ERR_NORMAL_COMPLETION) {
908 device_printf(sc->sc_dev,
909 "%s: could not change power state: %s\n",
910 __func__, usbd_errstr(uerror));
911 return (EIO);
912 }
913
914 sc->sc_sleeping = !!sleep;
915 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0;
916
917 return (0);
918 }
919
920 static int
rum_newstate(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)921 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
922 {
923 struct rum_vap *rvp = RUM_VAP(vap);
924 struct ieee80211com *ic = vap->iv_ic;
925 struct rum_softc *sc = ic->ic_softc;
926 const struct ieee80211_txparam *tp;
927 enum ieee80211_state ostate;
928 struct ieee80211_node *ni;
929 usb_error_t uerror;
930 int ret = 0;
931
932 ostate = vap->iv_state;
933 DPRINTF("%s -> %s\n",
934 ieee80211_state_name[ostate],
935 ieee80211_state_name[nstate]);
936
937 IEEE80211_UNLOCK(ic);
938 RUM_LOCK(sc);
939 usb_callout_stop(&rvp->ratectl_ch);
940
941 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) {
942 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
943 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
944
945 /*
946 * Ignore any errors;
947 * any subsequent TX will wakeup it anyway
948 */
949 (void) rum_set_power_state(sc, 0);
950 }
951
952 switch (nstate) {
953 case IEEE80211_S_INIT:
954 if (ostate == IEEE80211_S_RUN)
955 rum_abort_tsf_sync(sc);
956
957 break;
958
959 case IEEE80211_S_RUN:
960 if (ostate == IEEE80211_S_SLEEP)
961 break; /* already handled */
962
963 ni = ieee80211_ref_node(vap->iv_bss);
964
965 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
966 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
967 ni->ni_chan == IEEE80211_CHAN_ANYC) {
968 ret = EINVAL;
969 goto run_fail;
970 }
971 rum_update_slot_cb(sc, NULL, 0);
972 rum_enable_mrr(sc);
973 rum_set_txpreamble(sc);
974 rum_set_basicrates(sc);
975 rum_set_maxretry(sc, vap);
976 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
977 rum_set_bssid(sc, sc->sc_bssid);
978 }
979
980 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
981 vap->iv_opmode == IEEE80211_M_IBSS) {
982 if ((ret = rum_alloc_beacon(sc, vap)) != 0)
983 goto run_fail;
984 }
985
986 if (vap->iv_opmode != IEEE80211_M_MONITOR &&
987 vap->iv_opmode != IEEE80211_M_AHDEMO) {
988 if ((ret = rum_enable_tsf_sync(sc)) != 0)
989 goto run_fail;
990 } else
991 rum_enable_tsf(sc);
992
993 /* enable automatic rate adaptation */
994 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
995 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
996 rum_ratectl_start(sc, ni);
997 run_fail:
998 ieee80211_free_node(ni);
999 break;
1000 case IEEE80211_S_SLEEP:
1001 /* Implemented for STA mode only. */
1002 if (vap->iv_opmode != IEEE80211_M_STA)
1003 break;
1004
1005 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
1006 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1007 ret = EIO;
1008 break;
1009 }
1010
1011 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
1012 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1013 ret = EIO;
1014 break;
1015 }
1016
1017 ret = rum_set_power_state(sc, 1);
1018 if (ret != 0) {
1019 device_printf(sc->sc_dev,
1020 "%s: could not move to the SLEEP state: %s\n",
1021 __func__, usbd_errstr(uerror));
1022 }
1023 break;
1024 default:
1025 break;
1026 }
1027 RUM_UNLOCK(sc);
1028 IEEE80211_LOCK(ic);
1029 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret);
1030 }
1031
1032 static void
rum_bulk_write_callback(struct usb_xfer * xfer,usb_error_t error)1033 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1034 {
1035 struct rum_softc *sc = usbd_xfer_softc(xfer);
1036 struct ieee80211vap *vap;
1037 struct rum_tx_data *data;
1038 struct mbuf *m;
1039 struct usb_page_cache *pc;
1040 unsigned int len;
1041 int actlen, sumlen;
1042
1043 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1044
1045 switch (USB_GET_STATE(xfer)) {
1046 case USB_ST_TRANSFERRED:
1047 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
1048
1049 /* free resources */
1050 data = usbd_xfer_get_priv(xfer);
1051 rum_tx_free(data, 0);
1052 usbd_xfer_set_priv(xfer, NULL);
1053
1054 /* FALLTHROUGH */
1055 case USB_ST_SETUP:
1056 tr_setup:
1057 data = STAILQ_FIRST(&sc->tx_q);
1058 if (data) {
1059 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
1060 m = data->m;
1061
1062 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
1063 DPRINTFN(0, "data overflow, %u bytes\n",
1064 m->m_pkthdr.len);
1065 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
1066 }
1067 pc = usbd_xfer_get_frame(xfer, 0);
1068 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
1069 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
1070 m->m_pkthdr.len);
1071
1072 vap = data->ni->ni_vap;
1073 if (ieee80211_radiotap_active_vap(vap)) {
1074 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1075
1076 tap->wt_flags = 0;
1077 tap->wt_rate = data->rate;
1078 tap->wt_antenna = sc->tx_ant;
1079
1080 ieee80211_radiotap_tx(vap, m);
1081 }
1082
1083 /* align end on a 4-bytes boundary */
1084 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
1085 if ((len % 64) == 0)
1086 len += 4;
1087
1088 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
1089 m->m_pkthdr.len, len);
1090
1091 usbd_xfer_set_frame_len(xfer, 0, len);
1092 usbd_xfer_set_priv(xfer, data);
1093
1094 usbd_transfer_submit(xfer);
1095 }
1096 rum_start(sc);
1097 break;
1098
1099 default: /* Error */
1100 DPRINTFN(11, "transfer error, %s\n",
1101 usbd_errstr(error));
1102
1103 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1104 data = usbd_xfer_get_priv(xfer);
1105 if (data != NULL) {
1106 rum_tx_free(data, error);
1107 usbd_xfer_set_priv(xfer, NULL);
1108 }
1109
1110 if (error != USB_ERR_CANCELLED) {
1111 if (error == USB_ERR_TIMEOUT)
1112 device_printf(sc->sc_dev, "device timeout\n");
1113
1114 /*
1115 * Try to clear stall first, also if other
1116 * errors occur, hence clearing stall
1117 * introduces a 50 ms delay:
1118 */
1119 usbd_xfer_set_stall(xfer);
1120 goto tr_setup;
1121 }
1122 break;
1123 }
1124 }
1125
1126 static void
rum_bulk_read_callback(struct usb_xfer * xfer,usb_error_t error)1127 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1128 {
1129 struct rum_softc *sc = usbd_xfer_softc(xfer);
1130 struct ieee80211com *ic = &sc->sc_ic;
1131 struct ieee80211_frame_min *wh;
1132 struct ieee80211_node *ni;
1133 struct mbuf *m = NULL;
1134 struct usb_page_cache *pc;
1135 uint32_t flags;
1136 uint8_t rssi = 0;
1137 int len;
1138
1139 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
1140
1141 switch (USB_GET_STATE(xfer)) {
1142 case USB_ST_TRANSFERRED:
1143
1144 DPRINTFN(15, "rx done, actlen=%d\n", len);
1145
1146 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) {
1147 DPRINTF("%s: xfer too short %d\n",
1148 device_get_nameunit(sc->sc_dev), len);
1149 counter_u64_add(ic->ic_ierrors, 1);
1150 goto tr_setup;
1151 }
1152
1153 len -= RT2573_RX_DESC_SIZE;
1154 pc = usbd_xfer_get_frame(xfer, 0);
1155 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
1156
1157 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
1158 flags = le32toh(sc->sc_rx_desc.flags);
1159 sc->last_rx_flags = flags;
1160 if (flags & RT2573_RX_CRC_ERROR) {
1161 /*
1162 * This should not happen since we did not
1163 * request to receive those frames when we
1164 * filled RUM_TXRX_CSR2:
1165 */
1166 DPRINTFN(5, "PHY or CRC error\n");
1167 counter_u64_add(ic->ic_ierrors, 1);
1168 goto tr_setup;
1169 }
1170 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) {
1171 switch (flags & RT2573_RX_DEC_MASK) {
1172 case RT2573_RX_IV_ERROR:
1173 DPRINTFN(5, "IV/EIV error\n");
1174 break;
1175 case RT2573_RX_MIC_ERROR:
1176 DPRINTFN(5, "MIC error\n");
1177 break;
1178 case RT2573_RX_KEY_ERROR:
1179 DPRINTFN(5, "Key error\n");
1180 break;
1181 }
1182 counter_u64_add(ic->ic_ierrors, 1);
1183 goto tr_setup;
1184 }
1185
1186 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1187 if (m == NULL) {
1188 DPRINTF("could not allocate mbuf\n");
1189 counter_u64_add(ic->ic_ierrors, 1);
1190 goto tr_setup;
1191 }
1192 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
1193 mtod(m, uint8_t *), len);
1194
1195 wh = mtod(m, struct ieee80211_frame_min *);
1196
1197 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1198 (flags & RT2573_RX_CIP_MASK) !=
1199 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) {
1200 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
1201 m->m_flags |= M_WEP;
1202 }
1203
1204 /* finalize mbuf */
1205 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
1206
1207 if (ieee80211_radiotap_active(ic)) {
1208 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
1209
1210 tap->wr_flags = 0;
1211 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
1212 (flags & RT2573_RX_OFDM) ?
1213 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1214 rum_get_tsf(sc, &tap->wr_tsf);
1215 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
1216 tap->wr_antnoise = RT2573_NOISE_FLOOR;
1217 tap->wr_antenna = sc->rx_ant;
1218 }
1219 /* FALLTHROUGH */
1220 case USB_ST_SETUP:
1221 tr_setup:
1222 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1223 usbd_transfer_submit(xfer);
1224
1225 /*
1226 * At the end of a USB callback it is always safe to unlock
1227 * the private mutex of a device! That is why we do the
1228 * "ieee80211_input" here, and not some lines up!
1229 */
1230 RUM_UNLOCK(sc);
1231 if (m) {
1232 if (m->m_len >= sizeof(struct ieee80211_frame_min))
1233 ni = ieee80211_find_rxnode(ic, wh);
1234 else
1235 ni = NULL;
1236
1237 if (ni != NULL) {
1238 (void) ieee80211_input(ni, m, rssi,
1239 RT2573_NOISE_FLOOR);
1240 ieee80211_free_node(ni);
1241 } else
1242 (void) ieee80211_input_all(ic, m, rssi,
1243 RT2573_NOISE_FLOOR);
1244 }
1245 RUM_LOCK(sc);
1246 rum_start(sc);
1247 return;
1248
1249 default: /* Error */
1250 if (error != USB_ERR_CANCELLED) {
1251 /* try to clear stall first */
1252 usbd_xfer_set_stall(xfer);
1253 goto tr_setup;
1254 }
1255 return;
1256 }
1257 }
1258
1259 static uint8_t
rum_plcp_signal(int rate)1260 rum_plcp_signal(int rate)
1261 {
1262 switch (rate) {
1263 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1264 case 12: return 0xb;
1265 case 18: return 0xf;
1266 case 24: return 0xa;
1267 case 36: return 0xe;
1268 case 48: return 0x9;
1269 case 72: return 0xd;
1270 case 96: return 0x8;
1271 case 108: return 0xc;
1272
1273 /* CCK rates (NB: not IEEE std, device-specific) */
1274 case 2: return 0x0;
1275 case 4: return 0x1;
1276 case 11: return 0x2;
1277 case 22: return 0x3;
1278 }
1279 return 0xff; /* XXX unsupported/unknown rate */
1280 }
1281
1282 /*
1283 * Map net80211 cipher to RT2573 security mode.
1284 */
1285 static uint8_t
rum_crypto_mode(struct rum_softc * sc,u_int cipher,int keylen)1286 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen)
1287 {
1288 switch (cipher) {
1289 case IEEE80211_CIPHER_WEP:
1290 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104);
1291 case IEEE80211_CIPHER_TKIP:
1292 return RT2573_MODE_TKIP;
1293 case IEEE80211_CIPHER_AES_CCM:
1294 return RT2573_MODE_AES_CCMP;
1295 default:
1296 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher);
1297 return 0;
1298 }
1299 }
1300
1301 static void
rum_setup_tx_desc(struct rum_softc * sc,struct rum_tx_desc * desc,struct ieee80211_key * k,uint32_t flags,uint8_t xflags,uint8_t qid,int hdrlen,int len,int rate)1302 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1303 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid,
1304 int hdrlen, int len, int rate)
1305 {
1306 struct ieee80211com *ic = &sc->sc_ic;
1307 struct wmeParams *wmep = &sc->wme_params[qid];
1308 uint16_t plcp_length;
1309 int remainder;
1310
1311 flags |= RT2573_TX_VALID;
1312 flags |= len << 16;
1313
1314 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1315 const struct ieee80211_cipher *cip = k->wk_cipher;
1316
1317 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen;
1318
1319 desc->eiv = 0; /* for WEP */
1320 cip->ic_setiv(k, (uint8_t *)&desc->iv);
1321 }
1322
1323 /* setup PLCP fields */
1324 desc->plcp_signal = rum_plcp_signal(rate);
1325 desc->plcp_service = 4;
1326
1327 len += IEEE80211_CRC_LEN;
1328 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1329 flags |= RT2573_TX_OFDM;
1330
1331 plcp_length = len & 0xfff;
1332 desc->plcp_length_hi = plcp_length >> 6;
1333 desc->plcp_length_lo = plcp_length & 0x3f;
1334 } else {
1335 if (rate == 0)
1336 rate = 2; /* avoid division by zero */
1337 plcp_length = howmany(16 * len, rate);
1338 if (rate == 22) {
1339 remainder = (16 * len) % 22;
1340 if (remainder != 0 && remainder < 7)
1341 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1342 }
1343 desc->plcp_length_hi = plcp_length >> 8;
1344 desc->plcp_length_lo = plcp_length & 0xff;
1345
1346 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1347 desc->plcp_signal |= 0x08;
1348 }
1349
1350 desc->flags = htole32(flags);
1351 desc->hdrlen = hdrlen;
1352 desc->xflags = xflags;
1353
1354 desc->wme = htole16(RT2573_QID(qid) |
1355 RT2573_AIFSN(wmep->wmep_aifsn) |
1356 RT2573_LOGCWMIN(wmep->wmep_logcwmin) |
1357 RT2573_LOGCWMAX(wmep->wmep_logcwmax));
1358 }
1359
1360 static int
rum_sendprot(struct rum_softc * sc,const struct mbuf * m,struct ieee80211_node * ni,int prot,int rate)1361 rum_sendprot(struct rum_softc *sc,
1362 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1363 {
1364 struct ieee80211com *ic = ni->ni_ic;
1365 const struct ieee80211_frame *wh;
1366 struct rum_tx_data *data;
1367 struct mbuf *mprot;
1368 int protrate, pktlen, flags, isshort;
1369 uint16_t dur;
1370
1371 RUM_LOCK_ASSERT(sc);
1372 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1373 ("protection %d", prot));
1374
1375 wh = mtod(m, const struct ieee80211_frame *);
1376 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1377
1378 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1379
1380 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1381 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1382 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1383 flags = 0;
1384 if (prot == IEEE80211_PROT_RTSCTS) {
1385 /* NB: CTS is the same size as an ACK */
1386 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1387 flags |= RT2573_TX_NEED_ACK;
1388 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1389 } else {
1390 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1391 }
1392 if (mprot == NULL) {
1393 /* XXX stat + msg */
1394 return (ENOBUFS);
1395 }
1396 data = STAILQ_FIRST(&sc->tx_free);
1397 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1398 sc->tx_nfree--;
1399
1400 data->m = mprot;
1401 data->ni = ieee80211_ref_node(ni);
1402 data->rate = protrate;
1403 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0,
1404 mprot->m_pkthdr.len, protrate);
1405
1406 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1407 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1408
1409 return 0;
1410 }
1411
1412 static uint32_t
rum_tx_crypto_flags(struct rum_softc * sc,struct ieee80211_node * ni,const struct ieee80211_key * k)1413 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni,
1414 const struct ieee80211_key *k)
1415 {
1416 struct ieee80211vap *vap = ni->ni_vap;
1417 u_int cipher;
1418 uint32_t flags = 0;
1419 uint8_t mode, pos;
1420
1421 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1422 cipher = k->wk_cipher->ic_cipher;
1423 pos = k->wk_keyix;
1424 mode = rum_crypto_mode(sc, cipher, k->wk_keylen);
1425 if (mode == 0)
1426 return 0;
1427
1428 flags |= RT2573_TX_CIP_MODE(mode);
1429
1430 /* Do not trust GROUP flag */
1431 if (!(k >= &vap->iv_nw_keys[0] &&
1432 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]))
1433 flags |= RT2573_TX_KEY_PAIR;
1434 else
1435 pos += 0 * RT2573_SKEY_MAX; /* vap id */
1436
1437 flags |= RT2573_TX_KEY_ID(pos);
1438
1439 if (cipher == IEEE80211_CIPHER_TKIP)
1440 flags |= RT2573_TX_TKIPMIC;
1441 }
1442
1443 return flags;
1444 }
1445
1446 static int
rum_tx_mgt(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni)1447 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1448 {
1449 struct ieee80211vap *vap = ni->ni_vap;
1450 struct ieee80211com *ic = &sc->sc_ic;
1451 struct rum_tx_data *data;
1452 struct ieee80211_frame *wh;
1453 const struct ieee80211_txparam *tp;
1454 struct ieee80211_key *k = NULL;
1455 uint32_t flags = 0;
1456 uint16_t dur;
1457 uint8_t ac, type, xflags = 0;
1458 int hdrlen;
1459
1460 RUM_LOCK_ASSERT(sc);
1461
1462 data = STAILQ_FIRST(&sc->tx_free);
1463 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1464 sc->tx_nfree--;
1465
1466 wh = mtod(m0, struct ieee80211_frame *);
1467 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1468 hdrlen = ieee80211_anyhdrsize(wh);
1469 ac = M_WME_GETAC(m0);
1470
1471 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1472 k = ieee80211_crypto_get_txkey(ni, m0);
1473 if (k == NULL)
1474 return (ENOENT);
1475
1476 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1477 !k->wk_cipher->ic_encap(k, m0))
1478 return (ENOBUFS);
1479
1480 wh = mtod(m0, struct ieee80211_frame *);
1481 }
1482
1483 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1484
1485 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1486 flags |= RT2573_TX_NEED_ACK;
1487
1488 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1489 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1490 USETW(wh->i_dur, dur);
1491
1492 /* tell hardware to add timestamp for probe responses */
1493 if (type == IEEE80211_FC0_TYPE_MGT &&
1494 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1495 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1496 flags |= RT2573_TX_TIMESTAMP;
1497 }
1498
1499 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1500 xflags |= RT2573_TX_HWSEQ;
1501
1502 if (k != NULL)
1503 flags |= rum_tx_crypto_flags(sc, ni, k);
1504
1505 data->m = m0;
1506 data->ni = ni;
1507 data->rate = tp->mgmtrate;
1508
1509 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1510 m0->m_pkthdr.len, tp->mgmtrate);
1511
1512 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1513 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1514
1515 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1516 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1517
1518 return (0);
1519 }
1520
1521 static int
rum_tx_raw(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni,const struct ieee80211_bpf_params * params)1522 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1523 const struct ieee80211_bpf_params *params)
1524 {
1525 struct ieee80211com *ic = ni->ni_ic;
1526 struct ieee80211_frame *wh;
1527 struct rum_tx_data *data;
1528 uint32_t flags;
1529 uint8_t ac, type, xflags = 0;
1530 int rate, error;
1531
1532 RUM_LOCK_ASSERT(sc);
1533
1534 wh = mtod(m0, struct ieee80211_frame *);
1535 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1536
1537 ac = params->ibp_pri & 3;
1538
1539 rate = params->ibp_rate0;
1540 if (!ieee80211_isratevalid(ic->ic_rt, rate))
1541 return (EINVAL);
1542
1543 flags = 0;
1544 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1545 flags |= RT2573_TX_NEED_ACK;
1546 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1547 error = rum_sendprot(sc, m0, ni,
1548 params->ibp_flags & IEEE80211_BPF_RTS ?
1549 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1550 rate);
1551 if (error || sc->tx_nfree == 0)
1552 return (ENOBUFS);
1553
1554 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1555 }
1556
1557 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1558 xflags |= RT2573_TX_HWSEQ;
1559
1560 data = STAILQ_FIRST(&sc->tx_free);
1561 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1562 sc->tx_nfree--;
1563
1564 data->m = m0;
1565 data->ni = ni;
1566 data->rate = rate;
1567
1568 /* XXX need to setup descriptor ourself */
1569 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0,
1570 m0->m_pkthdr.len, rate);
1571
1572 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1573 m0->m_pkthdr.len, rate);
1574
1575 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1576 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1577
1578 return 0;
1579 }
1580
1581 static int
rum_tx_data(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni)1582 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1583 {
1584 struct ieee80211vap *vap = ni->ni_vap;
1585 struct ieee80211com *ic = &sc->sc_ic;
1586 struct rum_tx_data *data;
1587 struct ieee80211_frame *wh;
1588 const struct ieee80211_txparam *tp;
1589 struct ieee80211_key *k = NULL;
1590 uint32_t flags = 0;
1591 uint16_t dur;
1592 uint8_t ac, type, qos, xflags = 0;
1593 int error, hdrlen, rate;
1594
1595 RUM_LOCK_ASSERT(sc);
1596
1597 wh = mtod(m0, struct ieee80211_frame *);
1598 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1599 hdrlen = ieee80211_anyhdrsize(wh);
1600
1601 if (IEEE80211_QOS_HAS_SEQ(wh))
1602 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
1603 else
1604 qos = 0;
1605 ac = M_WME_GETAC(m0);
1606
1607 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1608 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1609 rate = tp->mcastrate;
1610 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1611 rate = tp->ucastrate;
1612 else
1613 rate = ni->ni_txrate;
1614
1615 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1616 k = ieee80211_crypto_get_txkey(ni, m0);
1617 if (k == NULL) {
1618 m_freem(m0);
1619 return (ENOENT);
1620 }
1621 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1622 !k->wk_cipher->ic_encap(k, m0)) {
1623 m_freem(m0);
1624 return (ENOBUFS);
1625 }
1626
1627 /* packet header may have moved, reset our local pointer */
1628 wh = mtod(m0, struct ieee80211_frame *);
1629 }
1630
1631 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1632 xflags |= RT2573_TX_HWSEQ;
1633
1634 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1635 int prot = IEEE80211_PROT_NONE;
1636 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1637 prot = IEEE80211_PROT_RTSCTS;
1638 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1639 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1640 prot = ic->ic_protmode;
1641 if (prot != IEEE80211_PROT_NONE) {
1642 error = rum_sendprot(sc, m0, ni, prot, rate);
1643 if (error || sc->tx_nfree == 0) {
1644 m_freem(m0);
1645 return ENOBUFS;
1646 }
1647 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1648 }
1649 }
1650
1651 if (k != NULL)
1652 flags |= rum_tx_crypto_flags(sc, ni, k);
1653
1654 data = STAILQ_FIRST(&sc->tx_free);
1655 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1656 sc->tx_nfree--;
1657
1658 data->m = m0;
1659 data->ni = ni;
1660 data->rate = rate;
1661
1662 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1663 /* Unicast frame, check if an ACK is expected. */
1664 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
1665 IEEE80211_QOS_ACKPOLICY_NOACK)
1666 flags |= RT2573_TX_NEED_ACK;
1667
1668 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1669 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1670 USETW(wh->i_dur, dur);
1671 }
1672
1673 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1674 m0->m_pkthdr.len, rate);
1675
1676 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1677 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1678
1679 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1680 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1681
1682 return 0;
1683 }
1684
1685 static int
rum_transmit(struct ieee80211com * ic,struct mbuf * m)1686 rum_transmit(struct ieee80211com *ic, struct mbuf *m)
1687 {
1688 struct rum_softc *sc = ic->ic_softc;
1689 int error;
1690
1691 RUM_LOCK(sc);
1692 if (!sc->sc_running) {
1693 RUM_UNLOCK(sc);
1694 return (ENXIO);
1695 }
1696 error = mbufq_enqueue(&sc->sc_snd, m);
1697 if (error) {
1698 RUM_UNLOCK(sc);
1699 return (error);
1700 }
1701 rum_start(sc);
1702 RUM_UNLOCK(sc);
1703
1704 return (0);
1705 }
1706
1707 static void
rum_start(struct rum_softc * sc)1708 rum_start(struct rum_softc *sc)
1709 {
1710 struct ieee80211_node *ni;
1711 struct mbuf *m;
1712
1713 RUM_LOCK_ASSERT(sc);
1714
1715 if (!sc->sc_running)
1716 return;
1717
1718 while (sc->tx_nfree >= RUM_TX_MINFREE &&
1719 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1720 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1721 if (rum_tx_data(sc, m, ni) != 0) {
1722 if_inc_counter(ni->ni_vap->iv_ifp,
1723 IFCOUNTER_OERRORS, 1);
1724 ieee80211_free_node(ni);
1725 break;
1726 }
1727 }
1728 }
1729
1730 static void
rum_parent(struct ieee80211com * ic)1731 rum_parent(struct ieee80211com *ic)
1732 {
1733 struct rum_softc *sc = ic->ic_softc;
1734 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1735
1736 RUM_LOCK(sc);
1737 if (sc->sc_detached) {
1738 RUM_UNLOCK(sc);
1739 return;
1740 }
1741 RUM_UNLOCK(sc);
1742
1743 if (ic->ic_nrunning > 0) {
1744 if (rum_init(sc) == 0)
1745 ieee80211_start_all(ic);
1746 else
1747 ieee80211_stop(vap);
1748 } else
1749 rum_stop(sc);
1750 }
1751
1752 static void
rum_eeprom_read(struct rum_softc * sc,uint16_t addr,void * buf,int len)1753 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1754 {
1755 struct usb_device_request req;
1756 usb_error_t error;
1757
1758 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1759 req.bRequest = RT2573_READ_EEPROM;
1760 USETW(req.wValue, 0);
1761 USETW(req.wIndex, addr);
1762 USETW(req.wLength, len);
1763
1764 error = rum_do_request(sc, &req, buf);
1765 if (error != 0) {
1766 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1767 usbd_errstr(error));
1768 }
1769 }
1770
1771 static uint32_t
rum_read(struct rum_softc * sc,uint16_t reg)1772 rum_read(struct rum_softc *sc, uint16_t reg)
1773 {
1774 uint32_t val;
1775
1776 rum_read_multi(sc, reg, &val, sizeof val);
1777
1778 return le32toh(val);
1779 }
1780
1781 static void
rum_read_multi(struct rum_softc * sc,uint16_t reg,void * buf,int len)1782 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1783 {
1784 struct usb_device_request req;
1785 usb_error_t error;
1786
1787 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1788 req.bRequest = RT2573_READ_MULTI_MAC;
1789 USETW(req.wValue, 0);
1790 USETW(req.wIndex, reg);
1791 USETW(req.wLength, len);
1792
1793 error = rum_do_request(sc, &req, buf);
1794 if (error != 0) {
1795 device_printf(sc->sc_dev,
1796 "could not multi read MAC register: %s\n",
1797 usbd_errstr(error));
1798 }
1799 }
1800
1801 static usb_error_t
rum_write(struct rum_softc * sc,uint16_t reg,uint32_t val)1802 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1803 {
1804 uint32_t tmp = htole32(val);
1805
1806 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1807 }
1808
1809 static usb_error_t
rum_write_multi(struct rum_softc * sc,uint16_t reg,void * buf,size_t len)1810 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1811 {
1812 struct usb_device_request req;
1813 usb_error_t error;
1814 size_t offset;
1815
1816 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1817 req.bRequest = RT2573_WRITE_MULTI_MAC;
1818 USETW(req.wValue, 0);
1819
1820 /* write at most 64 bytes at a time */
1821 for (offset = 0; offset < len; offset += 64) {
1822 USETW(req.wIndex, reg + offset);
1823 USETW(req.wLength, MIN(len - offset, 64));
1824
1825 error = rum_do_request(sc, &req, (char *)buf + offset);
1826 if (error != 0) {
1827 device_printf(sc->sc_dev,
1828 "could not multi write MAC register: %s\n",
1829 usbd_errstr(error));
1830 return (error);
1831 }
1832 }
1833
1834 return (USB_ERR_NORMAL_COMPLETION);
1835 }
1836
1837 static usb_error_t
rum_setbits(struct rum_softc * sc,uint16_t reg,uint32_t mask)1838 rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1839 {
1840 return (rum_write(sc, reg, rum_read(sc, reg) | mask));
1841 }
1842
1843 static usb_error_t
rum_clrbits(struct rum_softc * sc,uint16_t reg,uint32_t mask)1844 rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1845 {
1846 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask));
1847 }
1848
1849 static usb_error_t
rum_modbits(struct rum_softc * sc,uint16_t reg,uint32_t set,uint32_t unset)1850 rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset)
1851 {
1852 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set));
1853 }
1854
1855 static int
rum_bbp_busy(struct rum_softc * sc)1856 rum_bbp_busy(struct rum_softc *sc)
1857 {
1858 int ntries;
1859
1860 for (ntries = 0; ntries < 100; ntries++) {
1861 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1862 break;
1863 if (rum_pause(sc, hz / 100))
1864 break;
1865 }
1866 if (ntries == 100)
1867 return (ETIMEDOUT);
1868
1869 return (0);
1870 }
1871
1872 static void
rum_bbp_write(struct rum_softc * sc,uint8_t reg,uint8_t val)1873 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1874 {
1875 uint32_t tmp;
1876
1877 DPRINTFN(2, "reg=0x%08x\n", reg);
1878
1879 if (rum_bbp_busy(sc) != 0) {
1880 device_printf(sc->sc_dev, "could not write to BBP\n");
1881 return;
1882 }
1883
1884 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1885 rum_write(sc, RT2573_PHY_CSR3, tmp);
1886 }
1887
1888 static uint8_t
rum_bbp_read(struct rum_softc * sc,uint8_t reg)1889 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1890 {
1891 uint32_t val;
1892 int ntries;
1893
1894 DPRINTFN(2, "reg=0x%08x\n", reg);
1895
1896 if (rum_bbp_busy(sc) != 0) {
1897 device_printf(sc->sc_dev, "could not read BBP\n");
1898 return 0;
1899 }
1900
1901 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1902 rum_write(sc, RT2573_PHY_CSR3, val);
1903
1904 for (ntries = 0; ntries < 100; ntries++) {
1905 val = rum_read(sc, RT2573_PHY_CSR3);
1906 if (!(val & RT2573_BBP_BUSY))
1907 return val & 0xff;
1908 if (rum_pause(sc, hz / 100))
1909 break;
1910 }
1911
1912 device_printf(sc->sc_dev, "could not read BBP\n");
1913 return 0;
1914 }
1915
1916 static void
rum_rf_write(struct rum_softc * sc,uint8_t reg,uint32_t val)1917 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1918 {
1919 uint32_t tmp;
1920 int ntries;
1921
1922 for (ntries = 0; ntries < 100; ntries++) {
1923 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1924 break;
1925 if (rum_pause(sc, hz / 100))
1926 break;
1927 }
1928 if (ntries == 100) {
1929 device_printf(sc->sc_dev, "could not write to RF\n");
1930 return;
1931 }
1932
1933 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1934 (reg & 3);
1935 rum_write(sc, RT2573_PHY_CSR4, tmp);
1936
1937 /* remember last written value in sc */
1938 sc->rf_regs[reg] = val;
1939
1940 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1941 }
1942
1943 static void
rum_select_antenna(struct rum_softc * sc)1944 rum_select_antenna(struct rum_softc *sc)
1945 {
1946 uint8_t bbp4, bbp77;
1947 uint32_t tmp;
1948
1949 bbp4 = rum_bbp_read(sc, 4);
1950 bbp77 = rum_bbp_read(sc, 77);
1951
1952 /* TBD */
1953
1954 /* make sure Rx is disabled before switching antenna */
1955 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1956 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1957
1958 rum_bbp_write(sc, 4, bbp4);
1959 rum_bbp_write(sc, 77, bbp77);
1960
1961 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1962 }
1963
1964 /*
1965 * Enable multi-rate retries for frames sent at OFDM rates.
1966 * In 802.11b/g mode, allow fallback to CCK rates.
1967 */
1968 static void
rum_enable_mrr(struct rum_softc * sc)1969 rum_enable_mrr(struct rum_softc *sc)
1970 {
1971 struct ieee80211com *ic = &sc->sc_ic;
1972
1973 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
1974 rum_setbits(sc, RT2573_TXRX_CSR4,
1975 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK);
1976 } else {
1977 rum_modbits(sc, RT2573_TXRX_CSR4,
1978 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK);
1979 }
1980 }
1981
1982 static void
rum_set_txpreamble(struct rum_softc * sc)1983 rum_set_txpreamble(struct rum_softc *sc)
1984 {
1985 struct ieee80211com *ic = &sc->sc_ic;
1986
1987 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1988 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
1989 else
1990 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
1991 }
1992
1993 static void
rum_set_basicrates(struct rum_softc * sc)1994 rum_set_basicrates(struct rum_softc *sc)
1995 {
1996 struct ieee80211com *ic = &sc->sc_ic;
1997
1998 /* update basic rate set */
1999 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2000 /* 11b basic rates: 1, 2Mbps */
2001 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
2002 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2003 /* 11a basic rates: 6, 12, 24Mbps */
2004 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
2005 } else {
2006 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
2007 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
2008 }
2009 }
2010
2011 /*
2012 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
2013 * driver.
2014 */
2015 static void
rum_select_band(struct rum_softc * sc,struct ieee80211_channel * c)2016 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
2017 {
2018 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
2019
2020 /* update all BBP registers that depend on the band */
2021 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
2022 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
2023 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2024 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
2025 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
2026 }
2027 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2028 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2029 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
2030 }
2031
2032 sc->bbp17 = bbp17;
2033 rum_bbp_write(sc, 17, bbp17);
2034 rum_bbp_write(sc, 96, bbp96);
2035 rum_bbp_write(sc, 104, bbp104);
2036
2037 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2038 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2039 rum_bbp_write(sc, 75, 0x80);
2040 rum_bbp_write(sc, 86, 0x80);
2041 rum_bbp_write(sc, 88, 0x80);
2042 }
2043
2044 rum_bbp_write(sc, 35, bbp35);
2045 rum_bbp_write(sc, 97, bbp97);
2046 rum_bbp_write(sc, 98, bbp98);
2047
2048 if (IEEE80211_IS_CHAN_2GHZ(c)) {
2049 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ,
2050 RT2573_PA_PE_5GHZ);
2051 } else {
2052 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ,
2053 RT2573_PA_PE_2GHZ);
2054 }
2055 }
2056
2057 static void
rum_set_chan(struct rum_softc * sc,struct ieee80211_channel * c)2058 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
2059 {
2060 struct ieee80211com *ic = &sc->sc_ic;
2061 const struct rfprog *rfprog;
2062 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
2063 int8_t power;
2064 int i, chan;
2065
2066 chan = ieee80211_chan2ieee(ic, c);
2067 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
2068 return;
2069
2070 /* select the appropriate RF settings based on what EEPROM says */
2071 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
2072 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
2073
2074 /* find the settings for this channel (we know it exists) */
2075 for (i = 0; rfprog[i].chan != chan; i++);
2076
2077 power = sc->txpow[i];
2078 if (power < 0) {
2079 bbp94 += power;
2080 power = 0;
2081 } else if (power > 31) {
2082 bbp94 += power - 31;
2083 power = 31;
2084 }
2085
2086 /*
2087 * If we are switching from the 2GHz band to the 5GHz band or
2088 * vice-versa, BBP registers need to be reprogrammed.
2089 */
2090 if (c->ic_flags != ic->ic_curchan->ic_flags) {
2091 rum_select_band(sc, c);
2092 rum_select_antenna(sc);
2093 }
2094 ic->ic_curchan = c;
2095
2096 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2097 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2098 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2099 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2100
2101 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2102 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2103 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
2104 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2105
2106 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2107 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2108 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2109 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2110
2111 rum_pause(sc, hz / 100);
2112
2113 /* enable smart mode for MIMO-capable RFs */
2114 bbp3 = rum_bbp_read(sc, 3);
2115
2116 bbp3 &= ~RT2573_SMART_MODE;
2117 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
2118 bbp3 |= RT2573_SMART_MODE;
2119
2120 rum_bbp_write(sc, 3, bbp3);
2121
2122 if (bbp94 != RT2573_BBPR94_DEFAULT)
2123 rum_bbp_write(sc, 94, bbp94);
2124
2125 /* give the chip some extra time to do the switchover */
2126 rum_pause(sc, hz / 100);
2127 }
2128
2129 static void
rum_set_maxretry(struct rum_softc * sc,struct ieee80211vap * vap)2130 rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap)
2131 {
2132 const struct ieee80211_txparam *tp;
2133 struct ieee80211_node *ni = vap->iv_bss;
2134 struct rum_vap *rvp = RUM_VAP(vap);
2135
2136 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
2137 rvp->maxretry = tp->maxretry < 0xf ? tp->maxretry : 0xf;
2138
2139 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) |
2140 RT2573_LONG_RETRY(rvp->maxretry),
2141 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK);
2142 }
2143
2144 /*
2145 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
2146 * and HostAP operating modes.
2147 */
2148 static int
rum_enable_tsf_sync(struct rum_softc * sc)2149 rum_enable_tsf_sync(struct rum_softc *sc)
2150 {
2151 struct ieee80211com *ic = &sc->sc_ic;
2152 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2153 uint32_t tmp;
2154 uint16_t bintval;
2155
2156 if (vap->iv_opmode != IEEE80211_M_STA) {
2157 /*
2158 * Change default 16ms TBTT adjustment to 8ms.
2159 * Must be done before enabling beacon generation.
2160 */
2161 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0)
2162 return EIO;
2163 }
2164
2165 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
2166
2167 /* set beacon interval (in 1/16ms unit) */
2168 bintval = vap->iv_bss->ni_intval;
2169 tmp |= bintval * 16;
2170 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN;
2171
2172 switch (vap->iv_opmode) {
2173 case IEEE80211_M_STA:
2174 /*
2175 * Local TSF is always updated with remote TSF on beacon
2176 * reception.
2177 */
2178 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA);
2179 break;
2180 case IEEE80211_M_IBSS:
2181 /*
2182 * Local TSF is updated with remote TSF on beacon reception
2183 * only if the remote TSF is greater than local TSF.
2184 */
2185 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS);
2186 tmp |= RT2573_BCN_TX_EN;
2187 break;
2188 case IEEE80211_M_HOSTAP:
2189 /* SYNC with nobody */
2190 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP);
2191 tmp |= RT2573_BCN_TX_EN;
2192 break;
2193 default:
2194 device_printf(sc->sc_dev,
2195 "Enabling TSF failed. undefined opmode %d\n",
2196 vap->iv_opmode);
2197 return EINVAL;
2198 }
2199
2200 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0)
2201 return EIO;
2202
2203 /* refresh current sleep time */
2204 return (rum_set_sleep_time(sc, bintval));
2205 }
2206
2207 static void
rum_enable_tsf(struct rum_softc * sc)2208 rum_enable_tsf(struct rum_softc *sc)
2209 {
2210 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN |
2211 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff);
2212 }
2213
2214 static void
rum_abort_tsf_sync(struct rum_softc * sc)2215 rum_abort_tsf_sync(struct rum_softc *sc)
2216 {
2217 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff);
2218 }
2219
2220 static void
rum_get_tsf(struct rum_softc * sc,uint64_t * buf)2221 rum_get_tsf(struct rum_softc *sc, uint64_t *buf)
2222 {
2223 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf));
2224 }
2225
2226 static void
rum_update_slot_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2227 rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id)
2228 {
2229 struct ieee80211com *ic = &sc->sc_ic;
2230 uint8_t slottime;
2231
2232 slottime = IEEE80211_GET_SLOTTIME(ic);
2233
2234 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff);
2235
2236 DPRINTF("setting slot time to %uus\n", slottime);
2237 }
2238
2239 static void
rum_update_slot(struct ieee80211com * ic)2240 rum_update_slot(struct ieee80211com *ic)
2241 {
2242 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb);
2243 }
2244
2245 static int
rum_wme_update(struct ieee80211com * ic)2246 rum_wme_update(struct ieee80211com *ic)
2247 {
2248 const struct wmeParams *chanp =
2249 ic->ic_wme.wme_chanParams.cap_wmeParams;
2250 struct rum_softc *sc = ic->ic_softc;
2251 int error = 0;
2252
2253 RUM_LOCK(sc);
2254 error = rum_write(sc, RT2573_AIFSN_CSR,
2255 chanp[WME_AC_VO].wmep_aifsn << 12 |
2256 chanp[WME_AC_VI].wmep_aifsn << 8 |
2257 chanp[WME_AC_BK].wmep_aifsn << 4 |
2258 chanp[WME_AC_BE].wmep_aifsn);
2259 if (error)
2260 goto print_err;
2261 error = rum_write(sc, RT2573_CWMIN_CSR,
2262 chanp[WME_AC_VO].wmep_logcwmin << 12 |
2263 chanp[WME_AC_VI].wmep_logcwmin << 8 |
2264 chanp[WME_AC_BK].wmep_logcwmin << 4 |
2265 chanp[WME_AC_BE].wmep_logcwmin);
2266 if (error)
2267 goto print_err;
2268 error = rum_write(sc, RT2573_CWMAX_CSR,
2269 chanp[WME_AC_VO].wmep_logcwmax << 12 |
2270 chanp[WME_AC_VI].wmep_logcwmax << 8 |
2271 chanp[WME_AC_BK].wmep_logcwmax << 4 |
2272 chanp[WME_AC_BE].wmep_logcwmax);
2273 if (error)
2274 goto print_err;
2275 error = rum_write(sc, RT2573_TXOP01_CSR,
2276 chanp[WME_AC_BK].wmep_txopLimit << 16 |
2277 chanp[WME_AC_BE].wmep_txopLimit);
2278 if (error)
2279 goto print_err;
2280 error = rum_write(sc, RT2573_TXOP23_CSR,
2281 chanp[WME_AC_VO].wmep_txopLimit << 16 |
2282 chanp[WME_AC_VI].wmep_txopLimit);
2283 if (error)
2284 goto print_err;
2285
2286 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC);
2287
2288 print_err:
2289 RUM_UNLOCK(sc);
2290 if (error != 0) {
2291 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n",
2292 __func__, error);
2293 }
2294
2295 return (error);
2296 }
2297
2298 static void
rum_set_bssid(struct rum_softc * sc,const uint8_t * bssid)2299 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
2300 {
2301
2302 rum_write(sc, RT2573_MAC_CSR4,
2303 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
2304 rum_write(sc, RT2573_MAC_CSR5,
2305 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1));
2306 }
2307
2308 static void
rum_set_macaddr(struct rum_softc * sc,const uint8_t * addr)2309 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
2310 {
2311
2312 rum_write(sc, RT2573_MAC_CSR2,
2313 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2314 rum_write(sc, RT2573_MAC_CSR3,
2315 addr[4] | addr[5] << 8 | 0xff << 16);
2316 }
2317
2318 static void
rum_setpromisc(struct rum_softc * sc)2319 rum_setpromisc(struct rum_softc *sc)
2320 {
2321 struct ieee80211com *ic = &sc->sc_ic;
2322
2323 if (ic->ic_promisc == 0)
2324 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2325 else
2326 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2327
2328 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ?
2329 "entering" : "leaving");
2330 }
2331
2332 static void
rum_update_promisc(struct ieee80211com * ic)2333 rum_update_promisc(struct ieee80211com *ic)
2334 {
2335 struct rum_softc *sc = ic->ic_softc;
2336
2337 RUM_LOCK(sc);
2338 if (sc->sc_running)
2339 rum_setpromisc(sc);
2340 RUM_UNLOCK(sc);
2341 }
2342
2343 static void
rum_update_mcast(struct ieee80211com * ic)2344 rum_update_mcast(struct ieee80211com *ic)
2345 {
2346 /* Ignore. */
2347 }
2348
2349 static const char *
rum_get_rf(int rev)2350 rum_get_rf(int rev)
2351 {
2352 switch (rev) {
2353 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
2354 case RT2573_RF_2528: return "RT2528";
2355 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
2356 case RT2573_RF_5226: return "RT5226";
2357 default: return "unknown";
2358 }
2359 }
2360
2361 static void
rum_read_eeprom(struct rum_softc * sc)2362 rum_read_eeprom(struct rum_softc *sc)
2363 {
2364 uint16_t val;
2365 #ifdef RUM_DEBUG
2366 int i;
2367 #endif
2368
2369 /* read MAC address */
2370 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6);
2371
2372 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
2373 val = le16toh(val);
2374 sc->rf_rev = (val >> 11) & 0x1f;
2375 sc->hw_radio = (val >> 10) & 0x1;
2376 sc->rx_ant = (val >> 4) & 0x3;
2377 sc->tx_ant = (val >> 2) & 0x3;
2378 sc->nb_ant = val & 0x3;
2379
2380 DPRINTF("RF revision=%d\n", sc->rf_rev);
2381
2382 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
2383 val = le16toh(val);
2384 sc->ext_5ghz_lna = (val >> 6) & 0x1;
2385 sc->ext_2ghz_lna = (val >> 4) & 0x1;
2386
2387 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
2388 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
2389
2390 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
2391 val = le16toh(val);
2392 if ((val & 0xff) != 0xff)
2393 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
2394
2395 /* Only [-10, 10] is valid */
2396 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
2397 sc->rssi_2ghz_corr = 0;
2398
2399 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
2400 val = le16toh(val);
2401 if ((val & 0xff) != 0xff)
2402 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
2403
2404 /* Only [-10, 10] is valid */
2405 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
2406 sc->rssi_5ghz_corr = 0;
2407
2408 if (sc->ext_2ghz_lna)
2409 sc->rssi_2ghz_corr -= 14;
2410 if (sc->ext_5ghz_lna)
2411 sc->rssi_5ghz_corr -= 14;
2412
2413 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
2414 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
2415
2416 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
2417 val = le16toh(val);
2418 if ((val & 0xff) != 0xff)
2419 sc->rffreq = val & 0xff;
2420
2421 DPRINTF("RF freq=%d\n", sc->rffreq);
2422
2423 /* read Tx power for all a/b/g channels */
2424 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
2425 /* XXX default Tx power for 802.11a channels */
2426 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
2427 #ifdef RUM_DEBUG
2428 for (i = 0; i < 14; i++)
2429 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]);
2430 #endif
2431
2432 /* read default values for BBP registers */
2433 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
2434 #ifdef RUM_DEBUG
2435 for (i = 0; i < 14; i++) {
2436 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2437 continue;
2438 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
2439 sc->bbp_prom[i].val);
2440 }
2441 #endif
2442 }
2443
2444 static int
rum_bbp_wakeup(struct rum_softc * sc)2445 rum_bbp_wakeup(struct rum_softc *sc)
2446 {
2447 unsigned int ntries;
2448
2449 for (ntries = 0; ntries < 100; ntries++) {
2450 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
2451 break;
2452 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
2453 if (rum_pause(sc, hz / 100))
2454 break;
2455 }
2456 if (ntries == 100) {
2457 device_printf(sc->sc_dev,
2458 "timeout waiting for BBP/RF to wakeup\n");
2459 return (ETIMEDOUT);
2460 }
2461
2462 return (0);
2463 }
2464
2465 static int
rum_bbp_init(struct rum_softc * sc)2466 rum_bbp_init(struct rum_softc *sc)
2467 {
2468 int i, ntries;
2469
2470 /* wait for BBP to be ready */
2471 for (ntries = 0; ntries < 100; ntries++) {
2472 const uint8_t val = rum_bbp_read(sc, 0);
2473 if (val != 0 && val != 0xff)
2474 break;
2475 if (rum_pause(sc, hz / 100))
2476 break;
2477 }
2478 if (ntries == 100) {
2479 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2480 return EIO;
2481 }
2482
2483 /* initialize BBP registers to default values */
2484 for (i = 0; i < nitems(rum_def_bbp); i++)
2485 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
2486
2487 /* write vendor-specific BBP values (from EEPROM) */
2488 for (i = 0; i < 16; i++) {
2489 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2490 continue;
2491 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2492 }
2493
2494 return 0;
2495 }
2496
2497 static void
rum_clr_shkey_regs(struct rum_softc * sc)2498 rum_clr_shkey_regs(struct rum_softc *sc)
2499 {
2500 rum_write(sc, RT2573_SEC_CSR0, 0);
2501 rum_write(sc, RT2573_SEC_CSR1, 0);
2502 rum_write(sc, RT2573_SEC_CSR5, 0);
2503 }
2504
2505 static int
rum_init(struct rum_softc * sc)2506 rum_init(struct rum_softc *sc)
2507 {
2508 struct ieee80211com *ic = &sc->sc_ic;
2509 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2510 uint32_t tmp;
2511 int i, ret;
2512
2513 RUM_LOCK(sc);
2514 if (sc->sc_running) {
2515 ret = 0;
2516 goto end;
2517 }
2518
2519 /* initialize MAC registers to default values */
2520 for (i = 0; i < nitems(rum_def_mac); i++)
2521 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
2522
2523 /* reset some WME parameters to default values */
2524 sc->wme_params[0].wmep_aifsn = 2;
2525 sc->wme_params[0].wmep_logcwmin = 4;
2526 sc->wme_params[0].wmep_logcwmax = 10;
2527
2528 /* set host ready */
2529 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2530 rum_write(sc, RT2573_MAC_CSR1, 0);
2531
2532 /* wait for BBP/RF to wakeup */
2533 if ((ret = rum_bbp_wakeup(sc)) != 0)
2534 goto end;
2535
2536 if ((ret = rum_bbp_init(sc)) != 0)
2537 goto end;
2538
2539 /* select default channel */
2540 rum_select_band(sc, ic->ic_curchan);
2541 rum_select_antenna(sc);
2542 rum_set_chan(sc, ic->ic_curchan);
2543
2544 /* clear STA registers */
2545 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2546
2547 /* clear security registers (if required) */
2548 if (sc->sc_clr_shkeys == 0) {
2549 rum_clr_shkey_regs(sc);
2550 sc->sc_clr_shkeys = 1;
2551 }
2552
2553 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2554
2555 /* initialize ASIC */
2556 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY);
2557
2558 /*
2559 * Allocate Tx and Rx xfer queues.
2560 */
2561 rum_setup_tx_list(sc);
2562
2563 /* update Rx filter */
2564 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2565
2566 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2567 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2568 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2569 RT2573_DROP_ACKCTS;
2570 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2571 tmp |= RT2573_DROP_TODS;
2572 if (ic->ic_promisc == 0)
2573 tmp |= RT2573_DROP_NOT_TO_ME;
2574 }
2575 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2576
2577 sc->sc_running = 1;
2578 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2579 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2580
2581 end: RUM_UNLOCK(sc);
2582
2583 if (ret != 0)
2584 rum_stop(sc);
2585
2586 return ret;
2587 }
2588
2589 static void
rum_stop(struct rum_softc * sc)2590 rum_stop(struct rum_softc *sc)
2591 {
2592
2593 RUM_LOCK(sc);
2594 if (!sc->sc_running) {
2595 RUM_UNLOCK(sc);
2596 return;
2597 }
2598 sc->sc_running = 0;
2599 RUM_UNLOCK(sc);
2600
2601 /*
2602 * Drain the USB transfers, if not already drained:
2603 */
2604 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2605 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2606
2607 RUM_LOCK(sc);
2608 rum_unsetup_tx_list(sc);
2609
2610 /* disable Rx */
2611 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX);
2612
2613 /* reset ASIC */
2614 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2615 rum_write(sc, RT2573_MAC_CSR1, 0);
2616 RUM_UNLOCK(sc);
2617 }
2618
2619 static void
rum_load_microcode(struct rum_softc * sc,const uint8_t * ucode,size_t size)2620 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2621 {
2622 uint16_t reg = RT2573_MCU_CODE_BASE;
2623 usb_error_t err;
2624
2625 /* copy firmware image into NIC */
2626 for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2627 err = rum_write(sc, reg, UGETDW(ucode));
2628 if (err) {
2629 /* firmware already loaded ? */
2630 device_printf(sc->sc_dev, "Firmware load "
2631 "failure! (ignored)\n");
2632 break;
2633 }
2634 }
2635
2636 err = rum_do_mcu_request(sc, RT2573_MCU_RUN);
2637 if (err != USB_ERR_NORMAL_COMPLETION) {
2638 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2639 usbd_errstr(err));
2640 }
2641
2642 /* give the chip some time to boot */
2643 rum_pause(sc, hz / 8);
2644 }
2645
2646 static int
rum_set_sleep_time(struct rum_softc * sc,uint16_t bintval)2647 rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval)
2648 {
2649 struct ieee80211com *ic = &sc->sc_ic;
2650 usb_error_t uerror;
2651 int exp, delay;
2652
2653 RUM_LOCK_ASSERT(sc);
2654
2655 exp = ic->ic_lintval / bintval;
2656 delay = ic->ic_lintval % bintval;
2657
2658 if (exp > RT2573_TBCN_EXP_MAX)
2659 exp = RT2573_TBCN_EXP_MAX;
2660 if (delay > RT2573_TBCN_DELAY_MAX)
2661 delay = RT2573_TBCN_DELAY_MAX;
2662
2663 uerror = rum_modbits(sc, RT2573_MAC_CSR11,
2664 RT2573_TBCN_EXP(exp) |
2665 RT2573_TBCN_DELAY(delay),
2666 RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) |
2667 RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX));
2668
2669 if (uerror != USB_ERR_NORMAL_COMPLETION)
2670 return (EIO);
2671
2672 sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay);
2673
2674 return (0);
2675 }
2676
2677 static int
rum_reset(struct ieee80211vap * vap,u_long cmd)2678 rum_reset(struct ieee80211vap *vap, u_long cmd)
2679 {
2680 struct ieee80211com *ic = vap->iv_ic;
2681 struct ieee80211_node *ni;
2682 struct rum_softc *sc = ic->ic_softc;
2683 int error;
2684
2685 switch (cmd) {
2686 case IEEE80211_IOC_POWERSAVE:
2687 error = 0;
2688 break;
2689 case IEEE80211_IOC_POWERSAVESLEEP:
2690 ni = ieee80211_ref_node(vap->iv_bss);
2691
2692 RUM_LOCK(sc);
2693 error = rum_set_sleep_time(sc, ni->ni_intval);
2694 if (vap->iv_state == IEEE80211_S_SLEEP) {
2695 /* Use new values for wakeup timer. */
2696 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2697 rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2698 }
2699 /* XXX send reassoc */
2700 RUM_UNLOCK(sc);
2701
2702 ieee80211_free_node(ni);
2703 break;
2704 default:
2705 error = ENETRESET;
2706 break;
2707 }
2708
2709 return (error);
2710 }
2711
2712 static int
rum_set_beacon(struct rum_softc * sc,struct ieee80211vap * vap)2713 rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2714 {
2715 struct ieee80211com *ic = vap->iv_ic;
2716 struct rum_vap *rvp = RUM_VAP(vap);
2717 struct mbuf *m = rvp->bcn_mbuf;
2718 const struct ieee80211_txparam *tp;
2719 struct rum_tx_desc desc;
2720
2721 RUM_LOCK_ASSERT(sc);
2722
2723 if (m == NULL)
2724 return EINVAL;
2725 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC)
2726 return EINVAL;
2727
2728 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2729 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP,
2730 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate);
2731
2732 /* copy the Tx descriptor into NIC memory */
2733 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc,
2734 RT2573_TX_DESC_SIZE) != 0)
2735 return EIO;
2736
2737 /* copy beacon header and payload into NIC memory */
2738 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE,
2739 mtod(m, uint8_t *), m->m_pkthdr.len) != 0)
2740 return EIO;
2741
2742 return 0;
2743 }
2744
2745 static int
rum_alloc_beacon(struct rum_softc * sc,struct ieee80211vap * vap)2746 rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2747 {
2748 struct rum_vap *rvp = RUM_VAP(vap);
2749 struct ieee80211_node *ni = vap->iv_bss;
2750 struct mbuf *m;
2751
2752 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
2753 return EINVAL;
2754
2755 m = ieee80211_beacon_alloc(ni);
2756 if (m == NULL)
2757 return ENOMEM;
2758
2759 if (rvp->bcn_mbuf != NULL)
2760 m_freem(rvp->bcn_mbuf);
2761
2762 rvp->bcn_mbuf = m;
2763
2764 return (rum_set_beacon(sc, vap));
2765 }
2766
2767 static void
rum_update_beacon_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2768 rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data,
2769 uint8_t rvp_id)
2770 {
2771 struct ieee80211vap *vap = data->vap;
2772
2773 rum_set_beacon(sc, vap);
2774 }
2775
2776 static void
rum_update_beacon(struct ieee80211vap * vap,int item)2777 rum_update_beacon(struct ieee80211vap *vap, int item)
2778 {
2779 struct ieee80211com *ic = vap->iv_ic;
2780 struct rum_softc *sc = ic->ic_softc;
2781 struct rum_vap *rvp = RUM_VAP(vap);
2782 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
2783 struct ieee80211_node *ni = vap->iv_bss;
2784 struct mbuf *m = rvp->bcn_mbuf;
2785 int mcast = 0;
2786
2787 RUM_LOCK(sc);
2788 if (m == NULL) {
2789 m = ieee80211_beacon_alloc(ni);
2790 if (m == NULL) {
2791 device_printf(sc->sc_dev,
2792 "%s: could not allocate beacon frame\n", __func__);
2793 RUM_UNLOCK(sc);
2794 return;
2795 }
2796 rvp->bcn_mbuf = m;
2797 }
2798
2799 switch (item) {
2800 case IEEE80211_BEACON_ERP:
2801 rum_update_slot(ic);
2802 break;
2803 case IEEE80211_BEACON_TIM:
2804 mcast = 1; /*TODO*/
2805 break;
2806 default:
2807 break;
2808 }
2809 RUM_UNLOCK(sc);
2810
2811 setbit(bo->bo_flags, item);
2812 ieee80211_beacon_update(ni, m, mcast);
2813
2814 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb);
2815 }
2816
2817 static int
rum_common_key_set(struct rum_softc * sc,struct ieee80211_key * k,uint16_t base)2818 rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k,
2819 uint16_t base)
2820 {
2821
2822 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen))
2823 return EIO;
2824
2825 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
2826 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
2827 k->wk_txmic, 8))
2828 return EIO;
2829 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
2830 k->wk_rxmic, 8))
2831 return EIO;
2832 }
2833
2834 return 0;
2835 }
2836
2837 static void
rum_group_key_set_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2838 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data,
2839 uint8_t rvp_id)
2840 {
2841 struct ieee80211_key *k = &data->key;
2842 uint8_t mode;
2843
2844 if (sc->sc_clr_shkeys == 0) {
2845 rum_clr_shkey_regs(sc);
2846 sc->sc_clr_shkeys = 1;
2847 }
2848
2849 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2850 if (mode == 0)
2851 goto print_err;
2852
2853 DPRINTFN(1, "setting group key %d for vap %d, mode %d "
2854 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2855 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2856 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2857
2858 /* Install the key. */
2859 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0)
2860 goto print_err;
2861
2862 /* Set cipher mode. */
2863 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2864 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX,
2865 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX)
2866 != 0)
2867 goto print_err;
2868
2869 /* Mark this key as valid. */
2870 if (rum_setbits(sc, RT2573_SEC_CSR0,
2871 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0)
2872 goto print_err;
2873
2874 return;
2875
2876 print_err:
2877 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n",
2878 __func__, k->wk_keyix, rvp_id);
2879 }
2880
2881 static void
rum_group_key_del_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2882 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data,
2883 uint8_t rvp_id)
2884 {
2885 struct ieee80211_key *k = &data->key;
2886
2887 DPRINTF("%s: removing group key %d for vap %d\n", __func__,
2888 k->wk_keyix, rvp_id);
2889 rum_clrbits(sc,
2890 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2891 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX);
2892 rum_clrbits(sc, RT2573_SEC_CSR0,
2893 rvp_id * RT2573_SKEY_MAX + k->wk_keyix);
2894 }
2895
2896 static void
rum_pair_key_set_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2897 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data,
2898 uint8_t rvp_id)
2899 {
2900 struct ieee80211_key *k = &data->key;
2901 uint8_t buf[IEEE80211_ADDR_LEN + 1];
2902 uint8_t mode;
2903
2904 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2905 if (mode == 0)
2906 goto print_err;
2907
2908 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d "
2909 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2910 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2911 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2912
2913 /* Install the key. */
2914 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0)
2915 goto print_err;
2916
2917 IEEE80211_ADDR_COPY(buf, k->wk_macaddr);
2918 buf[IEEE80211_ADDR_LEN] = mode;
2919
2920 /* Set transmitter address and cipher mode. */
2921 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix),
2922 buf, sizeof buf) != 0)
2923 goto print_err;
2924
2925 /* Enable key table lookup for this vap. */
2926 if (sc->vap_key_count[rvp_id]++ == 0)
2927 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0)
2928 goto print_err;
2929
2930 /* Mark this key as valid. */
2931 if (rum_setbits(sc,
2932 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2933 1 << (k->wk_keyix % 32)) != 0)
2934 goto print_err;
2935
2936 return;
2937
2938 print_err:
2939 device_printf(sc->sc_dev,
2940 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix,
2941 rvp_id);
2942 }
2943
2944 static void
rum_pair_key_del_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2945 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data,
2946 uint8_t rvp_id)
2947 {
2948 struct ieee80211_key *k = &data->key;
2949
2950 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix);
2951 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2952 1 << (k->wk_keyix % 32));
2953 sc->keys_bmap &= ~(1ULL << k->wk_keyix);
2954 if (--sc->vap_key_count[rvp_id] == 0)
2955 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id);
2956 }
2957
2958 static int
rum_key_alloc(struct ieee80211vap * vap,struct ieee80211_key * k,ieee80211_keyix * keyix,ieee80211_keyix * rxkeyix)2959 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
2960 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
2961 {
2962 struct rum_softc *sc = vap->iv_ic->ic_softc;
2963 uint8_t i;
2964
2965 if (!(&vap->iv_nw_keys[0] <= k &&
2966 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) {
2967 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
2968 RUM_LOCK(sc);
2969 for (i = 0; i < RT2573_ADDR_MAX; i++) {
2970 if ((sc->keys_bmap & (1ULL << i)) == 0) {
2971 sc->keys_bmap |= (1ULL << i);
2972 *keyix = i;
2973 break;
2974 }
2975 }
2976 RUM_UNLOCK(sc);
2977 if (i == RT2573_ADDR_MAX) {
2978 device_printf(sc->sc_dev,
2979 "%s: no free space in the key table\n",
2980 __func__);
2981 return 0;
2982 }
2983 } else
2984 *keyix = 0;
2985 } else {
2986 *keyix = k - vap->iv_nw_keys;
2987 }
2988 *rxkeyix = *keyix;
2989 return 1;
2990 }
2991
2992 static int
rum_key_set(struct ieee80211vap * vap,const struct ieee80211_key * k)2993 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
2994 {
2995 struct rum_softc *sc = vap->iv_ic->ic_softc;
2996 int group;
2997
2998 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
2999 /* Not for us. */
3000 return 1;
3001 }
3002
3003 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3004
3005 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3006 group ? rum_group_key_set_cb : rum_pair_key_set_cb);
3007 }
3008
3009 static int
rum_key_delete(struct ieee80211vap * vap,const struct ieee80211_key * k)3010 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
3011 {
3012 struct rum_softc *sc = vap->iv_ic->ic_softc;
3013 int group;
3014
3015 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3016 /* Not for us. */
3017 return 1;
3018 }
3019
3020 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3021
3022 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3023 group ? rum_group_key_del_cb : rum_pair_key_del_cb);
3024 }
3025
3026 static int
rum_raw_xmit(struct ieee80211_node * ni,struct mbuf * m,const struct ieee80211_bpf_params * params)3027 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3028 const struct ieee80211_bpf_params *params)
3029 {
3030 struct rum_softc *sc = ni->ni_ic->ic_softc;
3031 int ret;
3032
3033 RUM_LOCK(sc);
3034 /* prevent management frames from being sent if we're not ready */
3035 if (!sc->sc_running) {
3036 ret = ENETDOWN;
3037 goto bad;
3038 }
3039 if (sc->tx_nfree < RUM_TX_MINFREE) {
3040 ret = EIO;
3041 goto bad;
3042 }
3043
3044 if (params == NULL) {
3045 /*
3046 * Legacy path; interpret frame contents to decide
3047 * precisely how to send the frame.
3048 */
3049 if ((ret = rum_tx_mgt(sc, m, ni)) != 0)
3050 goto bad;
3051 } else {
3052 /*
3053 * Caller supplied explicit parameters to use in
3054 * sending the frame.
3055 */
3056 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0)
3057 goto bad;
3058 }
3059 RUM_UNLOCK(sc);
3060
3061 return 0;
3062 bad:
3063 RUM_UNLOCK(sc);
3064 m_freem(m);
3065 return ret;
3066 }
3067
3068 static void
rum_ratectl_start(struct rum_softc * sc,struct ieee80211_node * ni)3069 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
3070 {
3071 struct ieee80211vap *vap = ni->ni_vap;
3072 struct rum_vap *rvp = RUM_VAP(vap);
3073
3074 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
3075 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
3076
3077 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3078 }
3079
3080 static void
rum_ratectl_timeout(void * arg)3081 rum_ratectl_timeout(void *arg)
3082 {
3083 struct rum_vap *rvp = arg;
3084 struct ieee80211vap *vap = &rvp->vap;
3085 struct ieee80211com *ic = vap->iv_ic;
3086
3087 ieee80211_runtask(ic, &rvp->ratectl_task);
3088 }
3089
3090 static void
rum_ratectl_task(void * arg,int pending)3091 rum_ratectl_task(void *arg, int pending)
3092 {
3093 struct rum_vap *rvp = arg;
3094 struct ieee80211vap *vap = &rvp->vap;
3095 struct rum_softc *sc = vap->iv_ic->ic_softc;
3096 struct ieee80211_node *ni;
3097 int ok[3], fail;
3098 int sum, success, retrycnt;
3099
3100 RUM_LOCK(sc);
3101 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */
3102 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
3103
3104 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */
3105 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */
3106 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */
3107 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
3108
3109 success = ok[0] + ok[1] + ok[2];
3110 sum = success + fail;
3111 /* XXX at least */
3112 retrycnt = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1);
3113
3114 if (sum != 0) {
3115 ni = ieee80211_ref_node(vap->iv_bss);
3116 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt);
3117 (void) ieee80211_ratectl_rate(ni, NULL, 0);
3118 ieee80211_free_node(ni);
3119 }
3120
3121 /* count TX retry-fail as Tx errors */
3122 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail);
3123
3124 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3125 RUM_UNLOCK(sc);
3126 }
3127
3128 static void
rum_scan_start(struct ieee80211com * ic)3129 rum_scan_start(struct ieee80211com *ic)
3130 {
3131 struct rum_softc *sc = ic->ic_softc;
3132
3133 RUM_LOCK(sc);
3134 rum_abort_tsf_sync(sc);
3135 rum_set_bssid(sc, ieee80211broadcastaddr);
3136 RUM_UNLOCK(sc);
3137
3138 }
3139
3140 static void
rum_scan_end(struct ieee80211com * ic)3141 rum_scan_end(struct ieee80211com *ic)
3142 {
3143 struct rum_softc *sc = ic->ic_softc;
3144
3145 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
3146 RUM_LOCK(sc);
3147 if (ic->ic_opmode != IEEE80211_M_AHDEMO)
3148 rum_enable_tsf_sync(sc);
3149 else
3150 rum_enable_tsf(sc);
3151 rum_set_bssid(sc, sc->sc_bssid);
3152 RUM_UNLOCK(sc);
3153 }
3154 }
3155
3156 static void
rum_set_channel(struct ieee80211com * ic)3157 rum_set_channel(struct ieee80211com *ic)
3158 {
3159 struct rum_softc *sc = ic->ic_softc;
3160
3161 RUM_LOCK(sc);
3162 rum_set_chan(sc, ic->ic_curchan);
3163 RUM_UNLOCK(sc);
3164 }
3165
3166 static void
rum_getradiocaps(struct ieee80211com * ic,int maxchans,int * nchans,struct ieee80211_channel chans[])3167 rum_getradiocaps(struct ieee80211com *ic,
3168 int maxchans, int *nchans, struct ieee80211_channel chans[])
3169 {
3170 struct rum_softc *sc = ic->ic_softc;
3171 uint8_t bands[IEEE80211_MODE_BYTES];
3172
3173 memset(bands, 0, sizeof(bands));
3174 setbit(bands, IEEE80211_MODE_11B);
3175 setbit(bands, IEEE80211_MODE_11G);
3176 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0);
3177
3178 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
3179 setbit(bands, IEEE80211_MODE_11A);
3180 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
3181 rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0);
3182 }
3183 }
3184
3185 static int
rum_get_rssi(struct rum_softc * sc,uint8_t raw)3186 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
3187 {
3188 struct ieee80211com *ic = &sc->sc_ic;
3189 int lna, agc, rssi;
3190
3191 lna = (raw >> 5) & 0x3;
3192 agc = raw & 0x1f;
3193
3194 if (lna == 0) {
3195 /*
3196 * No RSSI mapping
3197 *
3198 * NB: Since RSSI is relative to noise floor, -1 is
3199 * adequate for caller to know error happened.
3200 */
3201 return -1;
3202 }
3203
3204 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
3205
3206 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
3207 rssi += sc->rssi_2ghz_corr;
3208
3209 if (lna == 1)
3210 rssi -= 64;
3211 else if (lna == 2)
3212 rssi -= 74;
3213 else if (lna == 3)
3214 rssi -= 90;
3215 } else {
3216 rssi += sc->rssi_5ghz_corr;
3217
3218 if (!sc->ext_5ghz_lna && lna != 1)
3219 rssi += 4;
3220
3221 if (lna == 1)
3222 rssi -= 64;
3223 else if (lna == 2)
3224 rssi -= 86;
3225 else if (lna == 3)
3226 rssi -= 100;
3227 }
3228 return rssi;
3229 }
3230
3231 static int
rum_pause(struct rum_softc * sc,int timeout)3232 rum_pause(struct rum_softc *sc, int timeout)
3233 {
3234
3235 usb_pause_mtx(&sc->sc_mtx, timeout);
3236 return (0);
3237 }
3238
3239 static device_method_t rum_methods[] = {
3240 /* Device interface */
3241 DEVMETHOD(device_probe, rum_match),
3242 DEVMETHOD(device_attach, rum_attach),
3243 DEVMETHOD(device_detach, rum_detach),
3244 DEVMETHOD_END
3245 };
3246
3247 static driver_t rum_driver = {
3248 .name = "rum",
3249 .methods = rum_methods,
3250 .size = sizeof(struct rum_softc),
3251 };
3252
3253 static devclass_t rum_devclass;
3254
3255 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);
3256 MODULE_DEPEND(rum, wlan, 1, 1, 1);
3257 MODULE_DEPEND(rum, usb, 1, 1, 1);
3258 MODULE_VERSION(rum, 1);
3259 USB_PNP_HOST_INFO(rum_devs);
3260