1
2 /*-
3 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
4 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
5 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org>
6 * Copyright (c) 2015 Andriy Voskoboinyk <avos@FreeBSD.org>
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21 #include <sys/cdefs.h>
22 /*-
23 * Ralink Technology RT2501USB/RT2601USB chipset driver
24 * http://www.ralinktech.com.tw/
25 */
26
27 #include "opt_wlan.h"
28
29 #include <sys/param.h>
30 #include <sys/sockio.h>
31 #include <sys/sysctl.h>
32 #include <sys/lock.h>
33 #include <sys/mutex.h>
34 #include <sys/mbuf.h>
35 #include <sys/kernel.h>
36 #include <sys/socket.h>
37 #include <sys/systm.h>
38 #include <sys/malloc.h>
39 #include <sys/module.h>
40 #include <sys/bus.h>
41 #include <sys/endian.h>
42 #include <sys/kdb.h>
43
44 #include <net/bpf.h>
45 #include <net/if.h>
46 #include <net/if_var.h>
47 #include <net/if_arp.h>
48 #include <net/ethernet.h>
49 #include <net/if_dl.h>
50 #include <net/if_media.h>
51 #include <net/if_types.h>
52
53 #ifdef INET
54 #include <netinet/in.h>
55 #include <netinet/in_systm.h>
56 #include <netinet/in_var.h>
57 #include <netinet/if_ether.h>
58 #include <netinet/ip.h>
59 #endif
60
61 #include <net80211/ieee80211_var.h>
62 #include <net80211/ieee80211_regdomain.h>
63 #include <net80211/ieee80211_radiotap.h>
64 #include <net80211/ieee80211_ratectl.h>
65
66 #include <dev/usb/usb.h>
67 #include <dev/usb/usbdi.h>
68 #include "usbdevs.h"
69
70 #define USB_DEBUG_VAR rum_debug
71 #include <dev/usb/usb_debug.h>
72
73 #include <dev/usb/wlan/if_rumreg.h>
74 #include <dev/usb/wlan/if_rumvar.h>
75 #include <dev/usb/wlan/if_rumfw.h>
76
77 #ifdef USB_DEBUG
78 static int rum_debug = 0;
79
80 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
81 "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_reset_tx_list(struct rum_softc *,
165 struct ieee80211vap *);
166 static void rum_unsetup_tx_list(struct rum_softc *);
167 static void rum_beacon_miss(struct ieee80211vap *);
168 static void rum_sta_recv_mgmt(struct ieee80211_node *,
169 struct mbuf *, int,
170 const struct ieee80211_rx_stats *, int, int);
171 static int rum_set_power_state(struct rum_softc *, int);
172 static int rum_newstate(struct ieee80211vap *,
173 enum ieee80211_state, int);
174 static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int);
175 static void rum_setup_tx_desc(struct rum_softc *,
176 struct rum_tx_desc *, struct ieee80211_key *,
177 uint32_t, uint8_t, uint8_t, int, int, int);
178 static uint32_t rum_tx_crypto_flags(struct rum_softc *,
179 struct ieee80211_node *,
180 const struct ieee80211_key *);
181 static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
182 struct ieee80211_node *);
183 static int rum_tx_raw(struct rum_softc *, struct mbuf *,
184 struct ieee80211_node *,
185 const struct ieee80211_bpf_params *);
186 static int rum_tx_data(struct rum_softc *, struct mbuf *,
187 struct ieee80211_node *);
188 static int rum_transmit(struct ieee80211com *, struct mbuf *);
189 static void rum_start(struct rum_softc *);
190 static void rum_parent(struct ieee80211com *);
191 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
192 int);
193 static uint32_t rum_read(struct rum_softc *, uint16_t);
194 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
195 int);
196 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
197 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *,
198 size_t);
199 static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t);
200 static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t);
201 static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t,
202 uint32_t);
203 static int rum_bbp_busy(struct rum_softc *);
204 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
205 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
206 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
207 static void rum_select_antenna(struct rum_softc *);
208 static void rum_enable_mrr(struct rum_softc *);
209 static void rum_set_txpreamble(struct rum_softc *);
210 static void rum_set_basicrates(struct rum_softc *);
211 static void rum_select_band(struct rum_softc *,
212 struct ieee80211_channel *);
213 static void rum_set_chan(struct rum_softc *,
214 struct ieee80211_channel *);
215 static void rum_set_maxretry(struct rum_softc *,
216 struct ieee80211vap *);
217 static int rum_enable_tsf_sync(struct rum_softc *);
218 static void rum_enable_tsf(struct rum_softc *);
219 static void rum_abort_tsf_sync(struct rum_softc *);
220 static void rum_get_tsf(struct rum_softc *, uint64_t *);
221 static void rum_update_slot_cb(struct rum_softc *,
222 union sec_param *, uint8_t);
223 static void rum_update_slot(struct ieee80211com *);
224 static int rum_wme_update(struct ieee80211com *);
225 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
226 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
227 static void rum_update_mcast(struct ieee80211com *);
228 static void rum_update_promisc(struct ieee80211com *);
229 static void rum_setpromisc(struct rum_softc *);
230 static const char *rum_get_rf(int);
231 static void rum_read_eeprom(struct rum_softc *);
232 static int rum_bbp_wakeup(struct rum_softc *);
233 static int rum_bbp_init(struct rum_softc *);
234 static void rum_clr_shkey_regs(struct rum_softc *);
235 static int rum_init(struct rum_softc *);
236 static void rum_stop(struct rum_softc *);
237 static void rum_load_microcode(struct rum_softc *, const uint8_t *,
238 size_t);
239 static int rum_set_sleep_time(struct rum_softc *, uint16_t);
240 static int rum_reset(struct ieee80211vap *, u_long);
241 static int rum_set_beacon(struct rum_softc *,
242 struct ieee80211vap *);
243 static int rum_alloc_beacon(struct rum_softc *,
244 struct ieee80211vap *);
245 static void rum_update_beacon_cb(struct rum_softc *,
246 union sec_param *, uint8_t);
247 static void rum_update_beacon(struct ieee80211vap *, int);
248 static int rum_common_key_set(struct rum_softc *,
249 struct ieee80211_key *, uint16_t);
250 static void rum_group_key_set_cb(struct rum_softc *,
251 union sec_param *, uint8_t);
252 static void rum_group_key_del_cb(struct rum_softc *,
253 union sec_param *, uint8_t);
254 static void rum_pair_key_set_cb(struct rum_softc *,
255 union sec_param *, uint8_t);
256 static void rum_pair_key_del_cb(struct rum_softc *,
257 union sec_param *, uint8_t);
258 static int rum_key_alloc(struct ieee80211vap *,
259 struct ieee80211_key *, ieee80211_keyix *,
260 ieee80211_keyix *);
261 static int rum_key_set(struct ieee80211vap *,
262 const struct ieee80211_key *);
263 static int rum_key_delete(struct ieee80211vap *,
264 const struct ieee80211_key *);
265 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
266 const struct ieee80211_bpf_params *);
267 static void rum_scan_start(struct ieee80211com *);
268 static void rum_scan_end(struct ieee80211com *);
269 static void rum_set_channel(struct ieee80211com *);
270 static void rum_getradiocaps(struct ieee80211com *, int, int *,
271 struct ieee80211_channel[]);
272 static int rum_get_rssi(struct rum_softc *, uint8_t);
273 static void rum_ratectl_start(struct rum_softc *,
274 struct ieee80211_node *);
275 static void rum_ratectl_timeout(void *);
276 static void rum_ratectl_task(void *, int);
277 static int rum_pause(struct rum_softc *, int);
278
279 static const struct {
280 uint32_t reg;
281 uint32_t val;
282 } rum_def_mac[] = {
283 { RT2573_TXRX_CSR0, 0x025fb032 },
284 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
285 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
286 { RT2573_TXRX_CSR3, 0x00858687 },
287 { RT2573_TXRX_CSR7, 0x2e31353b },
288 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
289 { RT2573_TXRX_CSR15, 0x0000000f },
290 { RT2573_MAC_CSR6, 0x00000fff },
291 { RT2573_MAC_CSR8, 0x016c030a },
292 { RT2573_MAC_CSR10, 0x00000718 },
293 { RT2573_MAC_CSR12, 0x00000004 },
294 { RT2573_MAC_CSR13, 0x00007f00 },
295 { RT2573_SEC_CSR2, 0x00000000 },
296 { RT2573_SEC_CSR3, 0x00000000 },
297 { RT2573_SEC_CSR4, 0x00000000 },
298 { RT2573_PHY_CSR1, 0x000023b0 },
299 { RT2573_PHY_CSR5, 0x00040a06 },
300 { RT2573_PHY_CSR6, 0x00080606 },
301 { RT2573_PHY_CSR7, 0x00000408 },
302 { RT2573_AIFSN_CSR, 0x00002273 },
303 { RT2573_CWMIN_CSR, 0x00002344 },
304 { RT2573_CWMAX_CSR, 0x000034aa }
305 };
306
307 static const struct {
308 uint8_t reg;
309 uint8_t val;
310 } rum_def_bbp[] = {
311 { 3, 0x80 },
312 { 15, 0x30 },
313 { 17, 0x20 },
314 { 21, 0xc8 },
315 { 22, 0x38 },
316 { 23, 0x06 },
317 { 24, 0xfe },
318 { 25, 0x0a },
319 { 26, 0x0d },
320 { 32, 0x0b },
321 { 34, 0x12 },
322 { 37, 0x07 },
323 { 39, 0xf8 },
324 { 41, 0x60 },
325 { 53, 0x10 },
326 { 54, 0x18 },
327 { 60, 0x10 },
328 { 61, 0x04 },
329 { 62, 0x04 },
330 { 75, 0xfe },
331 { 86, 0xfe },
332 { 88, 0xfe },
333 { 90, 0x0f },
334 { 99, 0x00 },
335 { 102, 0x16 },
336 { 107, 0x04 }
337 };
338
339 static const uint8_t rum_chan_5ghz[] =
340 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64,
341 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
342 149, 153, 157, 161, 165 };
343
344 static const struct rfprog {
345 uint8_t chan;
346 uint32_t r1, r2, r3, r4;
347 } rum_rf5226[] = {
348 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
349 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
350 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
351 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
352 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
353 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
354 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
355 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
356 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
357 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
358 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
359 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
360 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
361 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
362
363 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
364 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
365 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
366 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
367
368 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
369 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
370 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
371 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
372 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
373 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
374 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
375 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
376
377 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
378 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
379 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
380 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
381 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
382 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
383 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
384 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
385 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
386 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
387 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
388
389 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
390 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
391 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
392 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
393 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
394 }, rum_rf5225[] = {
395 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
396 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
397 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
398 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
399 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
400 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
401 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
402 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
403 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
404 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
405 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
406 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
407 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
408 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
409
410 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
411 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
412 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
413 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
414
415 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
416 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
417 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
418 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
419 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
420 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
421 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
422 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
423
424 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
425 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
426 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
427 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
428 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
429 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
430 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
431 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
432 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
433 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
434 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
435
436 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
437 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
438 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
439 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
440 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
441 };
442
443 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
444 [RUM_BULK_WR] = {
445 .type = UE_BULK,
446 .endpoint = UE_ADDR_ANY,
447 .direction = UE_DIR_OUT,
448 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
449 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
450 .callback = rum_bulk_write_callback,
451 .timeout = 5000, /* ms */
452 },
453 [RUM_BULK_RD] = {
454 .type = UE_BULK,
455 .endpoint = UE_ADDR_ANY,
456 .direction = UE_DIR_IN,
457 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
458 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
459 .callback = rum_bulk_read_callback,
460 },
461 };
462
463 static int
rum_match(device_t self)464 rum_match(device_t self)
465 {
466 struct usb_attach_arg *uaa = device_get_ivars(self);
467
468 if (uaa->usb_mode != USB_MODE_HOST)
469 return (ENXIO);
470 if (uaa->info.bConfigIndex != 0)
471 return (ENXIO);
472 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
473 return (ENXIO);
474
475 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
476 }
477
478 static int
rum_attach(device_t self)479 rum_attach(device_t self)
480 {
481 struct usb_attach_arg *uaa = device_get_ivars(self);
482 struct rum_softc *sc = device_get_softc(self);
483 struct ieee80211com *ic = &sc->sc_ic;
484 uint32_t tmp;
485 uint8_t iface_index;
486 int error, ntries;
487
488 device_set_usb_desc(self);
489 sc->sc_udev = uaa->device;
490 sc->sc_dev = self;
491
492 RUM_LOCK_INIT(sc);
493 RUM_CMDQ_LOCK_INIT(sc);
494 mbufq_init(&sc->sc_snd, ifqmaxlen);
495
496 iface_index = RT2573_IFACE_INDEX;
497 error = usbd_transfer_setup(uaa->device, &iface_index,
498 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
499 if (error) {
500 device_printf(self, "could not allocate USB transfers, "
501 "err=%s\n", usbd_errstr(error));
502 goto detach;
503 }
504
505 RUM_LOCK(sc);
506 /* retrieve RT2573 rev. no */
507 for (ntries = 0; ntries < 100; ntries++) {
508 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
509 break;
510 if (rum_pause(sc, hz / 100))
511 break;
512 }
513 if (ntries == 100) {
514 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
515 RUM_UNLOCK(sc);
516 goto detach;
517 }
518
519 /* retrieve MAC address and various other things from EEPROM */
520 rum_read_eeprom(sc);
521
522 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
523 tmp, rum_get_rf(sc->rf_rev));
524
525 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
526 RUM_UNLOCK(sc);
527
528 ic->ic_softc = sc;
529 ic->ic_name = device_get_nameunit(self);
530 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
531
532 /* set device capabilities */
533 ic->ic_caps =
534 IEEE80211_C_STA /* station mode supported */
535 | IEEE80211_C_IBSS /* IBSS mode supported */
536 | IEEE80211_C_MONITOR /* monitor mode supported */
537 | IEEE80211_C_HOSTAP /* HostAp mode supported */
538 | IEEE80211_C_AHDEMO /* adhoc demo mode */
539 | IEEE80211_C_TXPMGT /* tx power management */
540 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
541 | IEEE80211_C_SHSLOT /* short slot time supported */
542 | IEEE80211_C_BGSCAN /* bg scanning supported */
543 | IEEE80211_C_WPA /* 802.11i */
544 | IEEE80211_C_WME /* 802.11e */
545 | IEEE80211_C_PMGT /* Station-side power mgmt */
546 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */
547 ;
548
549 ic->ic_cryptocaps =
550 IEEE80211_CRYPTO_WEP |
551 IEEE80211_CRYPTO_AES_CCM |
552 IEEE80211_CRYPTO_TKIPMIC |
553 IEEE80211_CRYPTO_TKIP;
554
555 rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
556 ic->ic_channels);
557
558 ieee80211_ifattach(ic);
559 ic->ic_update_promisc = rum_update_promisc;
560 ic->ic_raw_xmit = rum_raw_xmit;
561 ic->ic_scan_start = rum_scan_start;
562 ic->ic_scan_end = rum_scan_end;
563 ic->ic_set_channel = rum_set_channel;
564 ic->ic_getradiocaps = rum_getradiocaps;
565 ic->ic_transmit = rum_transmit;
566 ic->ic_parent = rum_parent;
567 ic->ic_vap_create = rum_vap_create;
568 ic->ic_vap_delete = rum_vap_delete;
569 ic->ic_updateslot = rum_update_slot;
570 ic->ic_wme.wme_update = rum_wme_update;
571 ic->ic_update_mcast = rum_update_mcast;
572
573 ieee80211_radiotap_attach(ic,
574 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
575 RT2573_TX_RADIOTAP_PRESENT,
576 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
577 RT2573_RX_RADIOTAP_PRESENT);
578
579 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc);
580
581 if (bootverbose)
582 ieee80211_announce(ic);
583
584 return (0);
585
586 detach:
587 rum_detach(self);
588 return (ENXIO); /* failure */
589 }
590
591 static int
rum_detach(device_t self)592 rum_detach(device_t self)
593 {
594 struct rum_softc *sc = device_get_softc(self);
595 struct ieee80211com *ic = &sc->sc_ic;
596
597 /* Prevent further ioctls */
598 RUM_LOCK(sc);
599 sc->sc_detached = 1;
600 RUM_UNLOCK(sc);
601
602 /* stop all USB transfers */
603 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
604
605 /* free TX list, if any */
606 RUM_LOCK(sc);
607 rum_unsetup_tx_list(sc);
608 RUM_UNLOCK(sc);
609
610 if (ic->ic_softc == sc) {
611 ieee80211_draintask(ic, &sc->cmdq_task);
612 ieee80211_ifdetach(ic);
613 }
614
615 mbufq_drain(&sc->sc_snd);
616 RUM_CMDQ_LOCK_DESTROY(sc);
617 RUM_LOCK_DESTROY(sc);
618
619 return (0);
620 }
621
622 static usb_error_t
rum_do_request(struct rum_softc * sc,struct usb_device_request * req,void * data)623 rum_do_request(struct rum_softc *sc,
624 struct usb_device_request *req, void *data)
625 {
626 usb_error_t err;
627 int ntries = 10;
628
629 while (ntries--) {
630 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
631 req, data, 0, NULL, 250 /* ms */);
632 if (err == 0)
633 break;
634
635 DPRINTFN(1, "Control request failed, %s (retrying)\n",
636 usbd_errstr(err));
637 if (rum_pause(sc, hz / 100))
638 break;
639 }
640 return (err);
641 }
642
643 static usb_error_t
rum_do_mcu_request(struct rum_softc * sc,int request)644 rum_do_mcu_request(struct rum_softc *sc, int request)
645 {
646 struct usb_device_request req;
647
648 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
649 req.bRequest = RT2573_MCU_CNTL;
650 USETW(req.wValue, request);
651 USETW(req.wIndex, 0);
652 USETW(req.wLength, 0);
653
654 return (rum_do_request(sc, &req, NULL));
655 }
656
657 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])658 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
659 enum ieee80211_opmode opmode, int flags,
660 const uint8_t bssid[IEEE80211_ADDR_LEN],
661 const uint8_t mac[IEEE80211_ADDR_LEN])
662 {
663 struct rum_softc *sc = ic->ic_softc;
664 struct rum_vap *rvp;
665 struct ieee80211vap *vap;
666
667 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
668 return NULL;
669 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO);
670 vap = &rvp->vap;
671 /* enable s/w bmiss handling for sta mode */
672
673 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
674 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
675 /* out of memory */
676 free(rvp, M_80211_VAP);
677 return (NULL);
678 }
679
680 /* override state transition machine */
681 rvp->newstate = vap->iv_newstate;
682 vap->iv_newstate = rum_newstate;
683 vap->iv_key_alloc = rum_key_alloc;
684 vap->iv_key_set = rum_key_set;
685 vap->iv_key_delete = rum_key_delete;
686 vap->iv_update_beacon = rum_update_beacon;
687 vap->iv_reset = rum_reset;
688 vap->iv_max_aid = RT2573_ADDR_MAX;
689
690 if (opmode == IEEE80211_M_STA) {
691 /*
692 * Move device to the sleep state when
693 * beacon is received and there is no data for us.
694 *
695 * Used only for IEEE80211_S_SLEEP state.
696 */
697 rvp->recv_mgmt = vap->iv_recv_mgmt;
698 vap->iv_recv_mgmt = rum_sta_recv_mgmt;
699
700 /* Ignored while sleeping. */
701 rvp->bmiss = vap->iv_bmiss;
702 vap->iv_bmiss = rum_beacon_miss;
703 }
704
705 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
706 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
707 ieee80211_ratectl_init(vap);
708 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
709 /* complete setup */
710 ieee80211_vap_attach(vap, ieee80211_media_change,
711 ieee80211_media_status, mac);
712 ic->ic_opmode = opmode;
713 return vap;
714 }
715
716 static void
rum_vap_delete(struct ieee80211vap * vap)717 rum_vap_delete(struct ieee80211vap *vap)
718 {
719 struct rum_vap *rvp = RUM_VAP(vap);
720 struct ieee80211com *ic = vap->iv_ic;
721 struct rum_softc *sc = ic->ic_softc;
722 int i;
723
724 /* Put vap into INIT state. */
725 ieee80211_new_state(vap, IEEE80211_S_INIT, -1);
726 for (i = 0; i < NET80211_IV_NSTATE_NUM; i++)
727 ieee80211_draintask(ic, &vap->iv_nstate_task[i]);
728
729 RUM_LOCK(sc);
730 /* Cancel any unfinished Tx. */
731 rum_reset_tx_list(sc, vap);
732 RUM_UNLOCK(sc);
733
734 usb_callout_drain(&rvp->ratectl_ch);
735 ieee80211_draintask(ic, &rvp->ratectl_task);
736 ieee80211_ratectl_deinit(vap);
737 ieee80211_vap_detach(vap);
738 m_freem(rvp->bcn_mbuf);
739 free(rvp, M_80211_VAP);
740 }
741
742 static void
rum_cmdq_cb(void * arg,int pending)743 rum_cmdq_cb(void *arg, int pending)
744 {
745 struct rum_softc *sc = arg;
746 struct rum_cmdq *rc;
747
748 RUM_CMDQ_LOCK(sc);
749 while (sc->cmdq[sc->cmdq_first].func != NULL) {
750 rc = &sc->cmdq[sc->cmdq_first];
751 RUM_CMDQ_UNLOCK(sc);
752
753 RUM_LOCK(sc);
754 rc->func(sc, &rc->data, rc->rvp_id);
755 RUM_UNLOCK(sc);
756
757 RUM_CMDQ_LOCK(sc);
758 memset(rc, 0, sizeof (*rc));
759 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE;
760 }
761 RUM_CMDQ_UNLOCK(sc);
762 }
763
764 static int
rum_cmd_sleepable(struct rum_softc * sc,const void * ptr,size_t len,uint8_t rvp_id,CMD_FUNC_PROTO)765 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len,
766 uint8_t rvp_id, CMD_FUNC_PROTO)
767 {
768 struct ieee80211com *ic = &sc->sc_ic;
769
770 KASSERT(len <= sizeof(union sec_param), ("buffer overflow"));
771
772 RUM_CMDQ_LOCK(sc);
773 if (sc->cmdq[sc->cmdq_last].func != NULL) {
774 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__);
775 RUM_CMDQ_UNLOCK(sc);
776
777 return EAGAIN;
778 }
779
780 if (ptr != NULL)
781 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len);
782 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id;
783 sc->cmdq[sc->cmdq_last].func = func;
784 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE;
785 RUM_CMDQ_UNLOCK(sc);
786
787 ieee80211_runtask(ic, &sc->cmdq_task);
788
789 return 0;
790 }
791
792 static void
rum_tx_free(struct rum_tx_data * data,int txerr)793 rum_tx_free(struct rum_tx_data *data, int txerr)
794 {
795 struct rum_softc *sc = data->sc;
796
797 if (data->m != NULL) {
798 ieee80211_tx_complete(data->ni, data->m, txerr);
799 data->m = NULL;
800 data->ni = NULL;
801 }
802 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
803 sc->tx_nfree++;
804 }
805
806 static void
rum_setup_tx_list(struct rum_softc * sc)807 rum_setup_tx_list(struct rum_softc *sc)
808 {
809 struct rum_tx_data *data;
810 int i;
811
812 sc->tx_nfree = 0;
813 STAILQ_INIT(&sc->tx_q);
814 STAILQ_INIT(&sc->tx_free);
815
816 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
817 data = &sc->tx_data[i];
818
819 data->sc = sc;
820 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
821 sc->tx_nfree++;
822 }
823 }
824
825 static void
rum_reset_tx_list(struct rum_softc * sc,struct ieee80211vap * vap)826 rum_reset_tx_list(struct rum_softc *sc, struct ieee80211vap *vap)
827 {
828 struct rum_tx_data *data, *tmp;
829
830 KASSERT(vap != NULL, ("%s: vap is NULL\n", __func__));
831
832 STAILQ_FOREACH_SAFE(data, &sc->tx_q, next, tmp) {
833 if (data->ni != NULL && data->ni->ni_vap == vap) {
834 ieee80211_free_node(data->ni);
835 data->ni = NULL;
836
837 KASSERT(data->m != NULL, ("%s: m is NULL\n",
838 __func__));
839 m_freem(data->m);
840 data->m = NULL;
841
842 STAILQ_REMOVE(&sc->tx_q, data, rum_tx_data, next);
843 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
844 sc->tx_nfree++;
845 }
846 }
847 }
848
849 static void
rum_unsetup_tx_list(struct rum_softc * sc)850 rum_unsetup_tx_list(struct rum_softc *sc)
851 {
852 struct rum_tx_data *data;
853 int i;
854
855 /* make sure any subsequent use of the queues will fail */
856 sc->tx_nfree = 0;
857 STAILQ_INIT(&sc->tx_q);
858 STAILQ_INIT(&sc->tx_free);
859
860 /* free up all node references and mbufs */
861 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
862 data = &sc->tx_data[i];
863
864 if (data->m != NULL) {
865 m_freem(data->m);
866 data->m = NULL;
867 }
868 if (data->ni != NULL) {
869 ieee80211_free_node(data->ni);
870 data->ni = NULL;
871 }
872 }
873 }
874
875 static void
rum_beacon_miss(struct ieee80211vap * vap)876 rum_beacon_miss(struct ieee80211vap *vap)
877 {
878 struct ieee80211com *ic = vap->iv_ic;
879 struct rum_softc *sc = ic->ic_softc;
880 struct rum_vap *rvp = RUM_VAP(vap);
881 int sleep;
882
883 RUM_LOCK(sc);
884 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) {
885 DPRINTFN(12, "dropping 'sleeping' bit, "
886 "device must be awake now\n");
887
888 sc->sc_sleeping = 0;
889 }
890
891 sleep = sc->sc_sleeping;
892 RUM_UNLOCK(sc);
893
894 if (!sleep)
895 rvp->bmiss(vap);
896 #ifdef USB_DEBUG
897 else
898 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n");
899 #endif
900 }
901
902 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)903 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
904 const struct ieee80211_rx_stats *rxs,
905 int rssi, int nf)
906 {
907 struct ieee80211vap *vap = ni->ni_vap;
908 struct rum_softc *sc = vap->iv_ic->ic_softc;
909 struct rum_vap *rvp = RUM_VAP(vap);
910
911 if (vap->iv_state == IEEE80211_S_SLEEP &&
912 subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
913 RUM_LOCK(sc);
914 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n",
915 !!(sc->last_rx_flags & RT2573_RX_MYBSS),
916 sc->last_rx_flags);
917
918 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) ==
919 (RT2573_RX_MYBSS | RT2573_RX_BC)) {
920 /*
921 * Put it to sleep here; in case if there is a data
922 * for us, iv_recv_mgmt() will wakeup the device via
923 * SLEEP -> RUN state transition.
924 */
925 rum_set_power_state(sc, 1);
926 }
927 RUM_UNLOCK(sc);
928 }
929
930 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf);
931 }
932
933 static int
rum_set_power_state(struct rum_softc * sc,int sleep)934 rum_set_power_state(struct rum_softc *sc, int sleep)
935 {
936 usb_error_t uerror;
937
938 RUM_LOCK_ASSERT(sc);
939
940 DPRINTFN(12, "moving to %s state (sleep time %u)\n",
941 sleep ? "sleep" : "awake", sc->sc_sleep_time);
942
943 uerror = rum_do_mcu_request(sc,
944 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP);
945 if (uerror != USB_ERR_NORMAL_COMPLETION) {
946 device_printf(sc->sc_dev,
947 "%s: could not change power state: %s\n",
948 __func__, usbd_errstr(uerror));
949 return (EIO);
950 }
951
952 sc->sc_sleeping = !!sleep;
953 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0;
954
955 return (0);
956 }
957
958 static int
rum_newstate(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)959 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
960 {
961 struct rum_vap *rvp = RUM_VAP(vap);
962 struct ieee80211com *ic = vap->iv_ic;
963 struct rum_softc *sc = ic->ic_softc;
964 const struct ieee80211_txparam *tp;
965 enum ieee80211_state ostate;
966 struct ieee80211_node *ni;
967 usb_error_t uerror;
968 int ret = 0;
969
970 ostate = vap->iv_state;
971 DPRINTF("%s -> %s\n",
972 ieee80211_state_name[ostate],
973 ieee80211_state_name[nstate]);
974
975 IEEE80211_UNLOCK(ic);
976 RUM_LOCK(sc);
977 usb_callout_stop(&rvp->ratectl_ch);
978
979 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) {
980 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
981 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
982
983 /*
984 * Ignore any errors;
985 * any subsequent TX will wakeup it anyway
986 */
987 (void) rum_set_power_state(sc, 0);
988 }
989
990 switch (nstate) {
991 case IEEE80211_S_INIT:
992 if (ostate == IEEE80211_S_RUN)
993 rum_abort_tsf_sync(sc);
994
995 break;
996
997 case IEEE80211_S_RUN:
998 if (ostate == IEEE80211_S_SLEEP)
999 break; /* already handled */
1000
1001 ni = ieee80211_ref_node(vap->iv_bss);
1002
1003 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
1004 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1005 ni->ni_chan == IEEE80211_CHAN_ANYC) {
1006 ret = EINVAL;
1007 goto run_fail;
1008 }
1009 rum_update_slot_cb(sc, NULL, 0);
1010 rum_enable_mrr(sc);
1011 rum_set_txpreamble(sc);
1012 rum_set_basicrates(sc);
1013 rum_set_maxretry(sc, vap);
1014 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
1015 rum_set_bssid(sc, sc->sc_bssid);
1016 }
1017
1018 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1019 vap->iv_opmode == IEEE80211_M_IBSS) {
1020 if ((ret = rum_alloc_beacon(sc, vap)) != 0)
1021 goto run_fail;
1022 }
1023
1024 if (vap->iv_opmode != IEEE80211_M_MONITOR &&
1025 vap->iv_opmode != IEEE80211_M_AHDEMO) {
1026 if ((ret = rum_enable_tsf_sync(sc)) != 0)
1027 goto run_fail;
1028 } else
1029 rum_enable_tsf(sc);
1030
1031 /* enable automatic rate adaptation */
1032 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1033 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
1034 rum_ratectl_start(sc, ni);
1035 run_fail:
1036 ieee80211_free_node(ni);
1037 break;
1038 case IEEE80211_S_SLEEP:
1039 /* Implemented for STA mode only. */
1040 if (vap->iv_opmode != IEEE80211_M_STA)
1041 break;
1042
1043 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
1044 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1045 ret = EIO;
1046 break;
1047 }
1048
1049 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
1050 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1051 ret = EIO;
1052 break;
1053 }
1054
1055 ret = rum_set_power_state(sc, 1);
1056 if (ret != 0) {
1057 device_printf(sc->sc_dev,
1058 "%s: could not move to the SLEEP state: %s\n",
1059 __func__, usbd_errstr(uerror));
1060 }
1061 break;
1062 default:
1063 break;
1064 }
1065 RUM_UNLOCK(sc);
1066 IEEE80211_LOCK(ic);
1067 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret);
1068 }
1069
1070 static void
rum_bulk_write_callback(struct usb_xfer * xfer,usb_error_t error)1071 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1072 {
1073 struct rum_softc *sc = usbd_xfer_softc(xfer);
1074 struct ieee80211vap *vap;
1075 struct rum_tx_data *data;
1076 struct mbuf *m;
1077 struct usb_page_cache *pc;
1078 unsigned len;
1079 int actlen, sumlen;
1080
1081 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1082
1083 switch (USB_GET_STATE(xfer)) {
1084 case USB_ST_TRANSFERRED:
1085 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
1086
1087 /* free resources */
1088 data = usbd_xfer_get_priv(xfer);
1089 rum_tx_free(data, 0);
1090 usbd_xfer_set_priv(xfer, NULL);
1091
1092 /* FALLTHROUGH */
1093 case USB_ST_SETUP:
1094 tr_setup:
1095 data = STAILQ_FIRST(&sc->tx_q);
1096 if (data) {
1097 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
1098 m = data->m;
1099
1100 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
1101 DPRINTFN(0, "data overflow, %u bytes\n",
1102 m->m_pkthdr.len);
1103 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
1104 }
1105 pc = usbd_xfer_get_frame(xfer, 0);
1106 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
1107 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
1108 m->m_pkthdr.len);
1109
1110 vap = data->ni->ni_vap;
1111 if (ieee80211_radiotap_active_vap(vap)) {
1112 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1113
1114 tap->wt_flags = 0;
1115 tap->wt_rate = data->rate;
1116 tap->wt_antenna = sc->tx_ant;
1117
1118 ieee80211_radiotap_tx(vap, m);
1119 }
1120
1121 /* align end on a 4-bytes boundary */
1122 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
1123 if ((len % 64) == 0)
1124 len += 4;
1125
1126 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
1127 m->m_pkthdr.len, len);
1128
1129 usbd_xfer_set_frame_len(xfer, 0, len);
1130 usbd_xfer_set_priv(xfer, data);
1131
1132 usbd_transfer_submit(xfer);
1133 }
1134 rum_start(sc);
1135 break;
1136
1137 default: /* Error */
1138 DPRINTFN(11, "transfer error, %s\n",
1139 usbd_errstr(error));
1140
1141 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1142 data = usbd_xfer_get_priv(xfer);
1143 if (data != NULL) {
1144 rum_tx_free(data, error);
1145 usbd_xfer_set_priv(xfer, NULL);
1146 }
1147
1148 if (error != USB_ERR_CANCELLED) {
1149 if (error == USB_ERR_TIMEOUT)
1150 device_printf(sc->sc_dev, "device timeout\n");
1151
1152 /*
1153 * Try to clear stall first, also if other
1154 * errors occur, hence clearing stall
1155 * introduces a 50 ms delay:
1156 */
1157 usbd_xfer_set_stall(xfer);
1158 goto tr_setup;
1159 }
1160 break;
1161 }
1162 }
1163
1164 static void
rum_bulk_read_callback(struct usb_xfer * xfer,usb_error_t error)1165 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1166 {
1167 struct rum_softc *sc = usbd_xfer_softc(xfer);
1168 struct ieee80211com *ic = &sc->sc_ic;
1169 struct ieee80211_frame_min *wh;
1170 struct ieee80211_node *ni;
1171 struct mbuf *m = NULL;
1172 struct usb_page_cache *pc;
1173 uint32_t flags;
1174 uint8_t rssi = 0;
1175 int len;
1176
1177 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
1178
1179 switch (USB_GET_STATE(xfer)) {
1180 case USB_ST_TRANSFERRED:
1181
1182 DPRINTFN(15, "rx done, actlen=%d\n", len);
1183
1184 if (len < RT2573_RX_DESC_SIZE) {
1185 DPRINTF("%s: xfer too short %d\n",
1186 device_get_nameunit(sc->sc_dev), len);
1187 counter_u64_add(ic->ic_ierrors, 1);
1188 goto tr_setup;
1189 }
1190
1191 len -= RT2573_RX_DESC_SIZE;
1192 pc = usbd_xfer_get_frame(xfer, 0);
1193 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
1194
1195 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
1196 flags = le32toh(sc->sc_rx_desc.flags);
1197 sc->last_rx_flags = flags;
1198 if (len < ((flags >> 16) & 0xfff)) {
1199 DPRINTFN(5, "%s: frame is truncated from %d to %d "
1200 "bytes\n", device_get_nameunit(sc->sc_dev),
1201 (flags >> 16) & 0xfff, len);
1202 counter_u64_add(ic->ic_ierrors, 1);
1203 goto tr_setup;
1204 }
1205 len = (flags >> 16) & 0xfff;
1206 if (len < sizeof(struct ieee80211_frame_ack)) {
1207 DPRINTFN(5, "%s: frame too short %d\n",
1208 device_get_nameunit(sc->sc_dev), len);
1209 counter_u64_add(ic->ic_ierrors, 1);
1210 goto tr_setup;
1211 }
1212 if (flags & RT2573_RX_CRC_ERROR) {
1213 /*
1214 * This should not happen since we did not
1215 * request to receive those frames when we
1216 * filled RUM_TXRX_CSR2:
1217 */
1218 DPRINTFN(5, "PHY or CRC error\n");
1219 counter_u64_add(ic->ic_ierrors, 1);
1220 goto tr_setup;
1221 }
1222 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) {
1223 switch (flags & RT2573_RX_DEC_MASK) {
1224 case RT2573_RX_IV_ERROR:
1225 DPRINTFN(5, "IV/EIV error\n");
1226 break;
1227 case RT2573_RX_MIC_ERROR:
1228 DPRINTFN(5, "MIC error\n");
1229 break;
1230 case RT2573_RX_KEY_ERROR:
1231 DPRINTFN(5, "Key error\n");
1232 break;
1233 }
1234 counter_u64_add(ic->ic_ierrors, 1);
1235 goto tr_setup;
1236 }
1237
1238 m = m_get2(len, M_NOWAIT, MT_DATA, M_PKTHDR);
1239 if (m == NULL) {
1240 DPRINTF("could not allocate mbuf\n");
1241 counter_u64_add(ic->ic_ierrors, 1);
1242 goto tr_setup;
1243 }
1244 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
1245 mtod(m, uint8_t *), len);
1246
1247 wh = mtod(m, struct ieee80211_frame_min *);
1248
1249 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1250 (flags & RT2573_RX_CIP_MASK) !=
1251 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) {
1252 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
1253 m->m_flags |= M_WEP;
1254 }
1255
1256 /* finalize mbuf */
1257 m->m_pkthdr.len = m->m_len = len;
1258
1259 if (ieee80211_radiotap_active(ic)) {
1260 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
1261
1262 tap->wr_flags = 0;
1263 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
1264 (flags & RT2573_RX_OFDM) ?
1265 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1266 rum_get_tsf(sc, &tap->wr_tsf);
1267 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
1268 tap->wr_antnoise = RT2573_NOISE_FLOOR;
1269 tap->wr_antenna = sc->rx_ant;
1270 }
1271 /* FALLTHROUGH */
1272 case USB_ST_SETUP:
1273 tr_setup:
1274 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1275 usbd_transfer_submit(xfer);
1276
1277 /*
1278 * At the end of a USB callback it is always safe to unlock
1279 * the private mutex of a device! That is why we do the
1280 * "ieee80211_input" here, and not some lines up!
1281 */
1282 RUM_UNLOCK(sc);
1283 if (m) {
1284 if (m->m_len >= sizeof(struct ieee80211_frame_min))
1285 ni = ieee80211_find_rxnode(ic, wh);
1286 else
1287 ni = NULL;
1288
1289 if (ni != NULL) {
1290 (void) ieee80211_input(ni, m, rssi,
1291 RT2573_NOISE_FLOOR);
1292 ieee80211_free_node(ni);
1293 } else
1294 (void) ieee80211_input_all(ic, m, rssi,
1295 RT2573_NOISE_FLOOR);
1296 }
1297 RUM_LOCK(sc);
1298 rum_start(sc);
1299 return;
1300
1301 default: /* Error */
1302 if (error != USB_ERR_CANCELLED) {
1303 /* try to clear stall first */
1304 usbd_xfer_set_stall(xfer);
1305 goto tr_setup;
1306 }
1307 return;
1308 }
1309 }
1310
1311 static uint8_t
rum_plcp_signal(int rate)1312 rum_plcp_signal(int rate)
1313 {
1314 switch (rate) {
1315 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1316 case 12: return 0xb;
1317 case 18: return 0xf;
1318 case 24: return 0xa;
1319 case 36: return 0xe;
1320 case 48: return 0x9;
1321 case 72: return 0xd;
1322 case 96: return 0x8;
1323 case 108: return 0xc;
1324
1325 /* CCK rates (NB: not IEEE std, device-specific) */
1326 case 2: return 0x0;
1327 case 4: return 0x1;
1328 case 11: return 0x2;
1329 case 22: return 0x3;
1330 }
1331 return 0xff; /* XXX unsupported/unknown rate */
1332 }
1333
1334 /*
1335 * Map net80211 cipher to RT2573 security mode.
1336 */
1337 static uint8_t
rum_crypto_mode(struct rum_softc * sc,u_int cipher,int keylen)1338 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen)
1339 {
1340 switch (cipher) {
1341 case IEEE80211_CIPHER_WEP:
1342 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104);
1343 case IEEE80211_CIPHER_TKIP:
1344 return RT2573_MODE_TKIP;
1345 case IEEE80211_CIPHER_AES_CCM:
1346 return RT2573_MODE_AES_CCMP;
1347 default:
1348 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher);
1349 return 0;
1350 }
1351 }
1352
1353 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)1354 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1355 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid,
1356 int hdrlen, int len, int rate)
1357 {
1358 struct ieee80211com *ic = &sc->sc_ic;
1359 struct wmeParams *wmep = &sc->wme_params[qid];
1360 uint16_t plcp_length;
1361 int remainder;
1362
1363 flags |= RT2573_TX_VALID;
1364 flags |= len << 16;
1365
1366 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1367 const struct ieee80211_cipher *cip = k->wk_cipher;
1368
1369 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen;
1370
1371 desc->eiv = 0; /* for WEP */
1372 cip->ic_setiv(k, (uint8_t *)&desc->iv);
1373 }
1374
1375 /* setup PLCP fields */
1376 desc->plcp_signal = rum_plcp_signal(rate);
1377 desc->plcp_service = 4;
1378
1379 len += IEEE80211_CRC_LEN;
1380 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1381 flags |= RT2573_TX_OFDM;
1382
1383 plcp_length = len & 0xfff;
1384 desc->plcp_length_hi = plcp_length >> 6;
1385 desc->plcp_length_lo = plcp_length & 0x3f;
1386 } else {
1387 if (rate == 0)
1388 rate = 2; /* avoid division by zero */
1389 plcp_length = howmany(16 * len, rate);
1390 if (rate == 22) {
1391 remainder = (16 * len) % 22;
1392 if (remainder != 0 && remainder < 7)
1393 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1394 }
1395 desc->plcp_length_hi = plcp_length >> 8;
1396 desc->plcp_length_lo = plcp_length & 0xff;
1397
1398 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1399 desc->plcp_signal |= 0x08;
1400 }
1401
1402 desc->flags = htole32(flags);
1403 desc->hdrlen = hdrlen;
1404 desc->xflags = xflags;
1405
1406 desc->wme = htole16(RT2573_QID(qid) |
1407 RT2573_AIFSN(wmep->wmep_aifsn) |
1408 RT2573_LOGCWMIN(wmep->wmep_logcwmin) |
1409 RT2573_LOGCWMAX(wmep->wmep_logcwmax));
1410 }
1411
1412 static int
rum_sendprot(struct rum_softc * sc,const struct mbuf * m,struct ieee80211_node * ni,int prot,int rate)1413 rum_sendprot(struct rum_softc *sc,
1414 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1415 {
1416 struct ieee80211com *ic = ni->ni_ic;
1417 struct rum_tx_data *data;
1418 struct mbuf *mprot;
1419 int protrate, flags;
1420
1421 RUM_LOCK_ASSERT(sc);
1422
1423 mprot = ieee80211_alloc_prot(ni, m, rate, prot);
1424 if (mprot == NULL) {
1425 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1);
1426 device_printf(sc->sc_dev,
1427 "could not allocate mbuf for protection mode %d\n", prot);
1428 return (ENOBUFS);
1429 }
1430
1431 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1432 flags = 0;
1433 if (prot == IEEE80211_PROT_RTSCTS)
1434 flags |= RT2573_TX_NEED_ACK;
1435
1436 data = STAILQ_FIRST(&sc->tx_free);
1437 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1438 sc->tx_nfree--;
1439
1440 data->m = mprot;
1441 data->ni = ieee80211_ref_node(ni);
1442 data->rate = protrate;
1443 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0,
1444 mprot->m_pkthdr.len, protrate);
1445
1446 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1447 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1448
1449 return 0;
1450 }
1451
1452 static uint32_t
rum_tx_crypto_flags(struct rum_softc * sc,struct ieee80211_node * ni,const struct ieee80211_key * k)1453 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni,
1454 const struct ieee80211_key *k)
1455 {
1456 struct ieee80211vap *vap = ni->ni_vap;
1457 u_int cipher;
1458 uint32_t flags = 0;
1459 uint8_t mode, pos;
1460
1461 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1462 cipher = k->wk_cipher->ic_cipher;
1463 pos = k->wk_keyix;
1464 mode = rum_crypto_mode(sc, cipher, k->wk_keylen);
1465 if (mode == 0)
1466 return 0;
1467
1468 flags |= RT2573_TX_CIP_MODE(mode);
1469
1470 /* Do not trust GROUP flag */
1471 if (ieee80211_is_key_unicast(vap, k))
1472 flags |= RT2573_TX_KEY_PAIR;
1473 else
1474 pos += 0 * RT2573_SKEY_MAX; /* vap id */
1475
1476 flags |= RT2573_TX_KEY_ID(pos);
1477
1478 if (cipher == IEEE80211_CIPHER_TKIP)
1479 flags |= RT2573_TX_TKIPMIC;
1480 }
1481
1482 return flags;
1483 }
1484
1485 static int
rum_tx_mgt(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni)1486 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1487 {
1488 const struct ieee80211_txparam *tp = ni->ni_txparms;
1489 struct ieee80211com *ic = &sc->sc_ic;
1490 struct rum_tx_data *data;
1491 struct ieee80211_frame *wh;
1492 struct ieee80211_key *k = NULL;
1493 uint32_t flags = 0;
1494 uint16_t dur;
1495 uint8_t ac, type, xflags = 0;
1496 int hdrlen;
1497
1498 RUM_LOCK_ASSERT(sc);
1499
1500 data = STAILQ_FIRST(&sc->tx_free);
1501 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1502 sc->tx_nfree--;
1503
1504 wh = mtod(m0, struct ieee80211_frame *);
1505 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1506 hdrlen = ieee80211_anyhdrsize(wh);
1507 ac = M_WME_GETAC(m0);
1508
1509 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1510 k = ieee80211_crypto_get_txkey(ni, m0);
1511 if (k == NULL)
1512 return (ENOENT);
1513
1514 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1515 !k->wk_cipher->ic_encap(k, m0))
1516 return (ENOBUFS);
1517
1518 wh = mtod(m0, struct ieee80211_frame *);
1519 }
1520
1521 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1522 flags |= RT2573_TX_NEED_ACK;
1523
1524 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1525 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1526 USETW(wh->i_dur, dur);
1527
1528 /* tell hardware to add timestamp for probe responses */
1529 if (type == IEEE80211_FC0_TYPE_MGT &&
1530 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1531 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1532 flags |= RT2573_TX_TIMESTAMP;
1533 }
1534
1535 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1536 xflags |= RT2573_TX_HWSEQ;
1537
1538 if (k != NULL)
1539 flags |= rum_tx_crypto_flags(sc, ni, k);
1540
1541 data->m = m0;
1542 data->ni = ni;
1543 data->rate = tp->mgmtrate;
1544
1545 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1546 m0->m_pkthdr.len, tp->mgmtrate);
1547
1548 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1549 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1550
1551 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1552 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1553
1554 return (0);
1555 }
1556
1557 static int
rum_tx_raw(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni,const struct ieee80211_bpf_params * params)1558 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1559 const struct ieee80211_bpf_params *params)
1560 {
1561 struct ieee80211com *ic = ni->ni_ic;
1562 struct ieee80211_frame *wh;
1563 struct rum_tx_data *data;
1564 uint32_t flags;
1565 uint8_t ac, type, xflags = 0;
1566 int rate, error;
1567
1568 RUM_LOCK_ASSERT(sc);
1569
1570 wh = mtod(m0, struct ieee80211_frame *);
1571 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1572
1573 ac = params->ibp_pri & 3;
1574
1575 rate = params->ibp_rate0;
1576 if (!ieee80211_isratevalid(ic->ic_rt, rate))
1577 return (EINVAL);
1578
1579 flags = 0;
1580 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1581 flags |= RT2573_TX_NEED_ACK;
1582 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1583 error = rum_sendprot(sc, m0, ni,
1584 params->ibp_flags & IEEE80211_BPF_RTS ?
1585 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1586 rate);
1587 if (error || sc->tx_nfree == 0)
1588 return (ENOBUFS);
1589
1590 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1591 }
1592
1593 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1594 xflags |= RT2573_TX_HWSEQ;
1595
1596 data = STAILQ_FIRST(&sc->tx_free);
1597 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1598 sc->tx_nfree--;
1599
1600 data->m = m0;
1601 data->ni = ni;
1602 data->rate = rate;
1603
1604 /* XXX need to setup descriptor ourself */
1605 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0,
1606 m0->m_pkthdr.len, rate);
1607
1608 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1609 m0->m_pkthdr.len, rate);
1610
1611 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1612 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1613
1614 return 0;
1615 }
1616
1617 static int
rum_tx_data(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni)1618 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1619 {
1620 struct ieee80211vap *vap = ni->ni_vap;
1621 struct ieee80211com *ic = &sc->sc_ic;
1622 struct rum_tx_data *data;
1623 struct ieee80211_frame *wh;
1624 const struct ieee80211_txparam *tp = ni->ni_txparms;
1625 struct ieee80211_key *k = NULL;
1626 uint32_t flags = 0;
1627 uint16_t dur;
1628 uint8_t ac, type, qos, xflags = 0;
1629 int error, hdrlen, rate;
1630
1631 RUM_LOCK_ASSERT(sc);
1632
1633 wh = mtod(m0, struct ieee80211_frame *);
1634 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1635 hdrlen = ieee80211_anyhdrsize(wh);
1636
1637 if (IEEE80211_QOS_HAS_SEQ(wh))
1638 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
1639 else
1640 qos = 0;
1641 ac = M_WME_GETAC(m0);
1642
1643 if (m0->m_flags & M_EAPOL)
1644 rate = tp->mgmtrate;
1645 else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1646 rate = tp->mcastrate;
1647 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1648 rate = tp->ucastrate;
1649 else {
1650 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1651 rate = ni->ni_txrate;
1652 }
1653
1654 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1655 k = ieee80211_crypto_get_txkey(ni, m0);
1656 if (k == NULL) {
1657 m_freem(m0);
1658 return (ENOENT);
1659 }
1660 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1661 !k->wk_cipher->ic_encap(k, m0)) {
1662 m_freem(m0);
1663 return (ENOBUFS);
1664 }
1665
1666 /* packet header may have moved, reset our local pointer */
1667 wh = mtod(m0, struct ieee80211_frame *);
1668 }
1669
1670 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1671 xflags |= RT2573_TX_HWSEQ;
1672
1673 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1674 int prot = IEEE80211_PROT_NONE;
1675 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1676 prot = IEEE80211_PROT_RTSCTS;
1677 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1678 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1679 prot = ic->ic_protmode;
1680 if (prot != IEEE80211_PROT_NONE) {
1681 error = rum_sendprot(sc, m0, ni, prot, rate);
1682 if (error || sc->tx_nfree == 0) {
1683 m_freem(m0);
1684 return ENOBUFS;
1685 }
1686 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1687 }
1688 }
1689
1690 if (k != NULL)
1691 flags |= rum_tx_crypto_flags(sc, ni, k);
1692
1693 data = STAILQ_FIRST(&sc->tx_free);
1694 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1695 sc->tx_nfree--;
1696
1697 data->m = m0;
1698 data->ni = ni;
1699 data->rate = rate;
1700
1701 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1702 /* Unicast frame, check if an ACK is expected. */
1703 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
1704 IEEE80211_QOS_ACKPOLICY_NOACK)
1705 flags |= RT2573_TX_NEED_ACK;
1706
1707 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1708 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1709 USETW(wh->i_dur, dur);
1710 }
1711
1712 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1713 m0->m_pkthdr.len, rate);
1714
1715 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1716 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1717
1718 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1719 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1720
1721 return 0;
1722 }
1723
1724 static int
rum_transmit(struct ieee80211com * ic,struct mbuf * m)1725 rum_transmit(struct ieee80211com *ic, struct mbuf *m)
1726 {
1727 struct rum_softc *sc = ic->ic_softc;
1728 int error;
1729
1730 RUM_LOCK(sc);
1731 if (!sc->sc_running) {
1732 RUM_UNLOCK(sc);
1733 return (ENXIO);
1734 }
1735 error = mbufq_enqueue(&sc->sc_snd, m);
1736 if (error) {
1737 RUM_UNLOCK(sc);
1738 return (error);
1739 }
1740 rum_start(sc);
1741 RUM_UNLOCK(sc);
1742
1743 return (0);
1744 }
1745
1746 static void
rum_start(struct rum_softc * sc)1747 rum_start(struct rum_softc *sc)
1748 {
1749 struct ieee80211_node *ni;
1750 struct mbuf *m;
1751
1752 RUM_LOCK_ASSERT(sc);
1753
1754 if (!sc->sc_running)
1755 return;
1756
1757 while (sc->tx_nfree >= RUM_TX_MINFREE &&
1758 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1759 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1760 if (rum_tx_data(sc, m, ni) != 0) {
1761 if_inc_counter(ni->ni_vap->iv_ifp,
1762 IFCOUNTER_OERRORS, 1);
1763 ieee80211_free_node(ni);
1764 break;
1765 }
1766 }
1767 }
1768
1769 static void
rum_parent(struct ieee80211com * ic)1770 rum_parent(struct ieee80211com *ic)
1771 {
1772 struct rum_softc *sc = ic->ic_softc;
1773 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1774
1775 RUM_LOCK(sc);
1776 if (sc->sc_detached) {
1777 RUM_UNLOCK(sc);
1778 return;
1779 }
1780 RUM_UNLOCK(sc);
1781
1782 if (ic->ic_nrunning > 0) {
1783 if (rum_init(sc) == 0)
1784 ieee80211_start_all(ic);
1785 else
1786 ieee80211_stop(vap);
1787 } else
1788 rum_stop(sc);
1789 }
1790
1791 static void
rum_eeprom_read(struct rum_softc * sc,uint16_t addr,void * buf,int len)1792 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1793 {
1794 struct usb_device_request req;
1795 usb_error_t error;
1796
1797 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1798 req.bRequest = RT2573_READ_EEPROM;
1799 USETW(req.wValue, 0);
1800 USETW(req.wIndex, addr);
1801 USETW(req.wLength, len);
1802
1803 error = rum_do_request(sc, &req, buf);
1804 if (error != 0) {
1805 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1806 usbd_errstr(error));
1807 }
1808 }
1809
1810 static uint32_t
rum_read(struct rum_softc * sc,uint16_t reg)1811 rum_read(struct rum_softc *sc, uint16_t reg)
1812 {
1813 uint32_t val;
1814
1815 rum_read_multi(sc, reg, &val, sizeof val);
1816
1817 return le32toh(val);
1818 }
1819
1820 static void
rum_read_multi(struct rum_softc * sc,uint16_t reg,void * buf,int len)1821 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1822 {
1823 struct usb_device_request req;
1824 usb_error_t error;
1825
1826 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1827 req.bRequest = RT2573_READ_MULTI_MAC;
1828 USETW(req.wValue, 0);
1829 USETW(req.wIndex, reg);
1830 USETW(req.wLength, len);
1831
1832 error = rum_do_request(sc, &req, buf);
1833 if (error != 0) {
1834 device_printf(sc->sc_dev,
1835 "could not multi read MAC register: %s\n",
1836 usbd_errstr(error));
1837 }
1838 }
1839
1840 static usb_error_t
rum_write(struct rum_softc * sc,uint16_t reg,uint32_t val)1841 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1842 {
1843 uint32_t tmp = htole32(val);
1844
1845 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1846 }
1847
1848 static usb_error_t
rum_write_multi(struct rum_softc * sc,uint16_t reg,void * buf,size_t len)1849 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1850 {
1851 struct usb_device_request req;
1852 usb_error_t error;
1853 size_t offset;
1854
1855 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1856 req.bRequest = RT2573_WRITE_MULTI_MAC;
1857 USETW(req.wValue, 0);
1858
1859 /* write at most 64 bytes at a time */
1860 for (offset = 0; offset < len; offset += 64) {
1861 USETW(req.wIndex, reg + offset);
1862 USETW(req.wLength, MIN(len - offset, 64));
1863
1864 error = rum_do_request(sc, &req, (char *)buf + offset);
1865 if (error != 0) {
1866 device_printf(sc->sc_dev,
1867 "could not multi write MAC register: %s\n",
1868 usbd_errstr(error));
1869 return (error);
1870 }
1871 }
1872
1873 return (USB_ERR_NORMAL_COMPLETION);
1874 }
1875
1876 static usb_error_t
rum_setbits(struct rum_softc * sc,uint16_t reg,uint32_t mask)1877 rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1878 {
1879 return (rum_write(sc, reg, rum_read(sc, reg) | mask));
1880 }
1881
1882 static usb_error_t
rum_clrbits(struct rum_softc * sc,uint16_t reg,uint32_t mask)1883 rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1884 {
1885 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask));
1886 }
1887
1888 static usb_error_t
rum_modbits(struct rum_softc * sc,uint16_t reg,uint32_t set,uint32_t unset)1889 rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset)
1890 {
1891 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set));
1892 }
1893
1894 static int
rum_bbp_busy(struct rum_softc * sc)1895 rum_bbp_busy(struct rum_softc *sc)
1896 {
1897 int ntries;
1898
1899 for (ntries = 0; ntries < 100; ntries++) {
1900 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1901 break;
1902 if (rum_pause(sc, hz / 100))
1903 break;
1904 }
1905 if (ntries == 100)
1906 return (ETIMEDOUT);
1907
1908 return (0);
1909 }
1910
1911 static void
rum_bbp_write(struct rum_softc * sc,uint8_t reg,uint8_t val)1912 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1913 {
1914 uint32_t tmp;
1915
1916 DPRINTFN(2, "reg=0x%08x\n", reg);
1917
1918 if (rum_bbp_busy(sc) != 0) {
1919 device_printf(sc->sc_dev, "could not write to BBP\n");
1920 return;
1921 }
1922
1923 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1924 rum_write(sc, RT2573_PHY_CSR3, tmp);
1925 }
1926
1927 static uint8_t
rum_bbp_read(struct rum_softc * sc,uint8_t reg)1928 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1929 {
1930 uint32_t val;
1931 int ntries;
1932
1933 DPRINTFN(2, "reg=0x%08x\n", reg);
1934
1935 if (rum_bbp_busy(sc) != 0) {
1936 device_printf(sc->sc_dev, "could not read BBP\n");
1937 return 0;
1938 }
1939
1940 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1941 rum_write(sc, RT2573_PHY_CSR3, val);
1942
1943 for (ntries = 0; ntries < 100; ntries++) {
1944 val = rum_read(sc, RT2573_PHY_CSR3);
1945 if (!(val & RT2573_BBP_BUSY))
1946 return val & 0xff;
1947 if (rum_pause(sc, hz / 100))
1948 break;
1949 }
1950
1951 device_printf(sc->sc_dev, "could not read BBP\n");
1952 return 0;
1953 }
1954
1955 static void
rum_rf_write(struct rum_softc * sc,uint8_t reg,uint32_t val)1956 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1957 {
1958 uint32_t tmp;
1959 int ntries;
1960
1961 for (ntries = 0; ntries < 100; ntries++) {
1962 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1963 break;
1964 if (rum_pause(sc, hz / 100))
1965 break;
1966 }
1967 if (ntries == 100) {
1968 device_printf(sc->sc_dev, "could not write to RF\n");
1969 return;
1970 }
1971
1972 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1973 (reg & 3);
1974 rum_write(sc, RT2573_PHY_CSR4, tmp);
1975
1976 /* remember last written value in sc */
1977 sc->rf_regs[reg] = val;
1978
1979 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1980 }
1981
1982 static void
rum_select_antenna(struct rum_softc * sc)1983 rum_select_antenna(struct rum_softc *sc)
1984 {
1985 uint8_t bbp4, bbp77;
1986 uint32_t tmp;
1987
1988 bbp4 = rum_bbp_read(sc, 4);
1989 bbp77 = rum_bbp_read(sc, 77);
1990
1991 /* TBD */
1992
1993 /* make sure Rx is disabled before switching antenna */
1994 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1995 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1996
1997 rum_bbp_write(sc, 4, bbp4);
1998 rum_bbp_write(sc, 77, bbp77);
1999
2000 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2001 }
2002
2003 /*
2004 * Enable multi-rate retries for frames sent at OFDM rates.
2005 * In 802.11b/g mode, allow fallback to CCK rates.
2006 */
2007 static void
rum_enable_mrr(struct rum_softc * sc)2008 rum_enable_mrr(struct rum_softc *sc)
2009 {
2010 struct ieee80211com *ic = &sc->sc_ic;
2011
2012 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2013 rum_setbits(sc, RT2573_TXRX_CSR4,
2014 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK);
2015 } else {
2016 rum_modbits(sc, RT2573_TXRX_CSR4,
2017 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK);
2018 }
2019 }
2020
2021 static void
rum_set_txpreamble(struct rum_softc * sc)2022 rum_set_txpreamble(struct rum_softc *sc)
2023 {
2024 struct ieee80211com *ic = &sc->sc_ic;
2025
2026 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2027 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2028 else
2029 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2030 }
2031
2032 static void
rum_set_basicrates(struct rum_softc * sc)2033 rum_set_basicrates(struct rum_softc *sc)
2034 {
2035 struct ieee80211com *ic = &sc->sc_ic;
2036
2037 /* update basic rate set */
2038 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2039 /* 11b basic rates: 1, 2Mbps */
2040 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
2041 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2042 /* 11a basic rates: 6, 12, 24Mbps */
2043 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
2044 } else {
2045 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
2046 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
2047 }
2048 }
2049
2050 /*
2051 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
2052 * driver.
2053 */
2054 static void
rum_select_band(struct rum_softc * sc,struct ieee80211_channel * c)2055 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
2056 {
2057 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
2058
2059 /* update all BBP registers that depend on the band */
2060 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
2061 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
2062 if (IEEE80211_IS_CHAN_5GHZ(c)) {
2063 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
2064 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
2065 }
2066 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2067 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2068 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
2069 }
2070
2071 sc->bbp17 = bbp17;
2072 rum_bbp_write(sc, 17, bbp17);
2073 rum_bbp_write(sc, 96, bbp96);
2074 rum_bbp_write(sc, 104, bbp104);
2075
2076 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2077 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2078 rum_bbp_write(sc, 75, 0x80);
2079 rum_bbp_write(sc, 86, 0x80);
2080 rum_bbp_write(sc, 88, 0x80);
2081 }
2082
2083 rum_bbp_write(sc, 35, bbp35);
2084 rum_bbp_write(sc, 97, bbp97);
2085 rum_bbp_write(sc, 98, bbp98);
2086
2087 if (IEEE80211_IS_CHAN_2GHZ(c)) {
2088 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ,
2089 RT2573_PA_PE_5GHZ);
2090 } else {
2091 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ,
2092 RT2573_PA_PE_2GHZ);
2093 }
2094 }
2095
2096 static void
rum_set_chan(struct rum_softc * sc,struct ieee80211_channel * c)2097 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
2098 {
2099 struct ieee80211com *ic = &sc->sc_ic;
2100 const struct rfprog *rfprog;
2101 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
2102 int8_t power;
2103 int i, chan;
2104
2105 chan = ieee80211_chan2ieee(ic, c);
2106 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
2107 return;
2108
2109 /* select the appropriate RF settings based on what EEPROM says */
2110 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
2111 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
2112
2113 /* find the settings for this channel (we know it exists) */
2114 for (i = 0; rfprog[i].chan != chan; i++);
2115
2116 power = sc->txpow[i];
2117 if (power < 0) {
2118 bbp94 += power;
2119 power = 0;
2120 } else if (power > 31) {
2121 bbp94 += power - 31;
2122 power = 31;
2123 }
2124
2125 /*
2126 * If we are switching from the 2GHz band to the 5GHz band or
2127 * vice-versa, BBP registers need to be reprogrammed.
2128 */
2129 if (c->ic_flags != ic->ic_curchan->ic_flags) {
2130 rum_select_band(sc, c);
2131 rum_select_antenna(sc);
2132 }
2133 ic->ic_curchan = c;
2134
2135 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2136 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2137 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2138 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2139
2140 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2141 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2142 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
2143 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2144
2145 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2146 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2147 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2148 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2149
2150 rum_pause(sc, hz / 100);
2151
2152 /* enable smart mode for MIMO-capable RFs */
2153 bbp3 = rum_bbp_read(sc, 3);
2154
2155 bbp3 &= ~RT2573_SMART_MODE;
2156 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
2157 bbp3 |= RT2573_SMART_MODE;
2158
2159 rum_bbp_write(sc, 3, bbp3);
2160
2161 if (bbp94 != RT2573_BBPR94_DEFAULT)
2162 rum_bbp_write(sc, 94, bbp94);
2163
2164 /* give the chip some extra time to do the switchover */
2165 rum_pause(sc, hz / 100);
2166 }
2167
2168 static void
rum_set_maxretry(struct rum_softc * sc,struct ieee80211vap * vap)2169 rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap)
2170 {
2171 struct ieee80211_node *ni = vap->iv_bss;
2172 const struct ieee80211_txparam *tp = ni->ni_txparms;
2173 struct rum_vap *rvp = RUM_VAP(vap);
2174
2175 rvp->maxretry = MIN(tp->maxretry, 0xf);
2176
2177 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) |
2178 RT2573_LONG_RETRY(rvp->maxretry),
2179 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK);
2180 }
2181
2182 /*
2183 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
2184 * and HostAP operating modes.
2185 */
2186 static int
rum_enable_tsf_sync(struct rum_softc * sc)2187 rum_enable_tsf_sync(struct rum_softc *sc)
2188 {
2189 struct ieee80211com *ic = &sc->sc_ic;
2190 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2191 uint32_t tmp;
2192 uint16_t bintval;
2193
2194 if (vap->iv_opmode != IEEE80211_M_STA) {
2195 /*
2196 * Change default 16ms TBTT adjustment to 8ms.
2197 * Must be done before enabling beacon generation.
2198 */
2199 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0)
2200 return EIO;
2201 }
2202
2203 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
2204
2205 /* set beacon interval (in 1/16ms unit) */
2206 bintval = vap->iv_bss->ni_intval;
2207 tmp |= bintval * 16;
2208 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN;
2209
2210 switch (vap->iv_opmode) {
2211 case IEEE80211_M_STA:
2212 /*
2213 * Local TSF is always updated with remote TSF on beacon
2214 * reception.
2215 */
2216 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA);
2217 break;
2218 case IEEE80211_M_IBSS:
2219 /*
2220 * Local TSF is updated with remote TSF on beacon reception
2221 * only if the remote TSF is greater than local TSF.
2222 */
2223 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS);
2224 tmp |= RT2573_BCN_TX_EN;
2225 break;
2226 case IEEE80211_M_HOSTAP:
2227 /* SYNC with nobody */
2228 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP);
2229 tmp |= RT2573_BCN_TX_EN;
2230 break;
2231 default:
2232 device_printf(sc->sc_dev,
2233 "Enabling TSF failed. undefined opmode %d\n",
2234 vap->iv_opmode);
2235 return EINVAL;
2236 }
2237
2238 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0)
2239 return EIO;
2240
2241 /* refresh current sleep time */
2242 return (rum_set_sleep_time(sc, bintval));
2243 }
2244
2245 static void
rum_enable_tsf(struct rum_softc * sc)2246 rum_enable_tsf(struct rum_softc *sc)
2247 {
2248 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN |
2249 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff);
2250 }
2251
2252 static void
rum_abort_tsf_sync(struct rum_softc * sc)2253 rum_abort_tsf_sync(struct rum_softc *sc)
2254 {
2255 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff);
2256 }
2257
2258 static void
rum_get_tsf(struct rum_softc * sc,uint64_t * buf)2259 rum_get_tsf(struct rum_softc *sc, uint64_t *buf)
2260 {
2261 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf));
2262 }
2263
2264 static void
rum_update_slot_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2265 rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id)
2266 {
2267 struct ieee80211com *ic = &sc->sc_ic;
2268 uint8_t slottime;
2269
2270 slottime = IEEE80211_GET_SLOTTIME(ic);
2271
2272 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff);
2273
2274 DPRINTF("setting slot time to %uus\n", slottime);
2275 }
2276
2277 static void
rum_update_slot(struct ieee80211com * ic)2278 rum_update_slot(struct ieee80211com *ic)
2279 {
2280 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb);
2281 }
2282
2283 static int
rum_wme_update(struct ieee80211com * ic)2284 rum_wme_update(struct ieee80211com *ic)
2285 {
2286 struct chanAccParams chp;
2287 const struct wmeParams *chanp;
2288 struct rum_softc *sc = ic->ic_softc;
2289 int error = 0;
2290
2291 ieee80211_wme_ic_getparams(ic, &chp);
2292 chanp = chp.cap_wmeParams;
2293
2294 RUM_LOCK(sc);
2295 error = rum_write(sc, RT2573_AIFSN_CSR,
2296 chanp[WME_AC_VO].wmep_aifsn << 12 |
2297 chanp[WME_AC_VI].wmep_aifsn << 8 |
2298 chanp[WME_AC_BK].wmep_aifsn << 4 |
2299 chanp[WME_AC_BE].wmep_aifsn);
2300 if (error)
2301 goto print_err;
2302 error = rum_write(sc, RT2573_CWMIN_CSR,
2303 chanp[WME_AC_VO].wmep_logcwmin << 12 |
2304 chanp[WME_AC_VI].wmep_logcwmin << 8 |
2305 chanp[WME_AC_BK].wmep_logcwmin << 4 |
2306 chanp[WME_AC_BE].wmep_logcwmin);
2307 if (error)
2308 goto print_err;
2309 error = rum_write(sc, RT2573_CWMAX_CSR,
2310 chanp[WME_AC_VO].wmep_logcwmax << 12 |
2311 chanp[WME_AC_VI].wmep_logcwmax << 8 |
2312 chanp[WME_AC_BK].wmep_logcwmax << 4 |
2313 chanp[WME_AC_BE].wmep_logcwmax);
2314 if (error)
2315 goto print_err;
2316 error = rum_write(sc, RT2573_TXOP01_CSR,
2317 chanp[WME_AC_BK].wmep_txopLimit << 16 |
2318 chanp[WME_AC_BE].wmep_txopLimit);
2319 if (error)
2320 goto print_err;
2321 error = rum_write(sc, RT2573_TXOP23_CSR,
2322 chanp[WME_AC_VO].wmep_txopLimit << 16 |
2323 chanp[WME_AC_VI].wmep_txopLimit);
2324 if (error)
2325 goto print_err;
2326
2327 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC);
2328
2329 print_err:
2330 RUM_UNLOCK(sc);
2331 if (error != 0) {
2332 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n",
2333 __func__, error);
2334 }
2335
2336 return (error);
2337 }
2338
2339 static void
rum_set_bssid(struct rum_softc * sc,const uint8_t * bssid)2340 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
2341 {
2342
2343 rum_write(sc, RT2573_MAC_CSR4,
2344 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
2345 rum_write(sc, RT2573_MAC_CSR5,
2346 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1));
2347 }
2348
2349 static void
rum_set_macaddr(struct rum_softc * sc,const uint8_t * addr)2350 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
2351 {
2352
2353 rum_write(sc, RT2573_MAC_CSR2,
2354 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2355 rum_write(sc, RT2573_MAC_CSR3,
2356 addr[4] | addr[5] << 8 | 0xff << 16);
2357 }
2358
2359 static void
rum_setpromisc(struct rum_softc * sc)2360 rum_setpromisc(struct rum_softc *sc)
2361 {
2362 struct ieee80211com *ic = &sc->sc_ic;
2363
2364 if (ic->ic_promisc == 0)
2365 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2366 else
2367 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2368
2369 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ?
2370 "entering" : "leaving");
2371 }
2372
2373 static void
rum_update_promisc(struct ieee80211com * ic)2374 rum_update_promisc(struct ieee80211com *ic)
2375 {
2376 struct rum_softc *sc = ic->ic_softc;
2377
2378 RUM_LOCK(sc);
2379 if (sc->sc_running)
2380 rum_setpromisc(sc);
2381 RUM_UNLOCK(sc);
2382 }
2383
2384 static void
rum_update_mcast(struct ieee80211com * ic)2385 rum_update_mcast(struct ieee80211com *ic)
2386 {
2387 /* Ignore. */
2388 }
2389
2390 static const char *
rum_get_rf(int rev)2391 rum_get_rf(int rev)
2392 {
2393 switch (rev) {
2394 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
2395 case RT2573_RF_2528: return "RT2528";
2396 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
2397 case RT2573_RF_5226: return "RT5226";
2398 default: return "unknown";
2399 }
2400 }
2401
2402 static void
rum_read_eeprom(struct rum_softc * sc)2403 rum_read_eeprom(struct rum_softc *sc)
2404 {
2405 uint16_t val;
2406 #ifdef RUM_DEBUG
2407 int i;
2408 #endif
2409
2410 /* read MAC address */
2411 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6);
2412
2413 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
2414 val = le16toh(val);
2415 sc->rf_rev = (val >> 11) & 0x1f;
2416 sc->hw_radio = (val >> 10) & 0x1;
2417 sc->rx_ant = (val >> 4) & 0x3;
2418 sc->tx_ant = (val >> 2) & 0x3;
2419 sc->nb_ant = val & 0x3;
2420
2421 DPRINTF("RF revision=%d\n", sc->rf_rev);
2422
2423 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
2424 val = le16toh(val);
2425 sc->ext_5ghz_lna = (val >> 6) & 0x1;
2426 sc->ext_2ghz_lna = (val >> 4) & 0x1;
2427
2428 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
2429 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
2430
2431 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
2432 val = le16toh(val);
2433 if ((val & 0xff) != 0xff)
2434 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
2435
2436 /* Only [-10, 10] is valid */
2437 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
2438 sc->rssi_2ghz_corr = 0;
2439
2440 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
2441 val = le16toh(val);
2442 if ((val & 0xff) != 0xff)
2443 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
2444
2445 /* Only [-10, 10] is valid */
2446 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
2447 sc->rssi_5ghz_corr = 0;
2448
2449 if (sc->ext_2ghz_lna)
2450 sc->rssi_2ghz_corr -= 14;
2451 if (sc->ext_5ghz_lna)
2452 sc->rssi_5ghz_corr -= 14;
2453
2454 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
2455 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
2456
2457 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
2458 val = le16toh(val);
2459 if ((val & 0xff) != 0xff)
2460 sc->rffreq = val & 0xff;
2461
2462 DPRINTF("RF freq=%d\n", sc->rffreq);
2463
2464 /* read Tx power for all a/b/g channels */
2465 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
2466 /* XXX default Tx power for 802.11a channels */
2467 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
2468 #ifdef RUM_DEBUG
2469 for (i = 0; i < 14; i++)
2470 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]);
2471 #endif
2472
2473 /* read default values for BBP registers */
2474 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
2475 #ifdef RUM_DEBUG
2476 for (i = 0; i < 14; i++) {
2477 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2478 continue;
2479 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
2480 sc->bbp_prom[i].val);
2481 }
2482 #endif
2483 }
2484
2485 static int
rum_bbp_wakeup(struct rum_softc * sc)2486 rum_bbp_wakeup(struct rum_softc *sc)
2487 {
2488 unsigned ntries;
2489
2490 for (ntries = 0; ntries < 100; ntries++) {
2491 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
2492 break;
2493 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
2494 if (rum_pause(sc, hz / 100))
2495 break;
2496 }
2497 if (ntries == 100) {
2498 device_printf(sc->sc_dev,
2499 "timeout waiting for BBP/RF to wakeup\n");
2500 return (ETIMEDOUT);
2501 }
2502
2503 return (0);
2504 }
2505
2506 static int
rum_bbp_init(struct rum_softc * sc)2507 rum_bbp_init(struct rum_softc *sc)
2508 {
2509 int i, ntries;
2510
2511 /* wait for BBP to be ready */
2512 for (ntries = 0; ntries < 100; ntries++) {
2513 const uint8_t val = rum_bbp_read(sc, 0);
2514 if (val != 0 && val != 0xff)
2515 break;
2516 if (rum_pause(sc, hz / 100))
2517 break;
2518 }
2519 if (ntries == 100) {
2520 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2521 return EIO;
2522 }
2523
2524 /* initialize BBP registers to default values */
2525 for (i = 0; i < nitems(rum_def_bbp); i++)
2526 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
2527
2528 /* write vendor-specific BBP values (from EEPROM) */
2529 for (i = 0; i < 16; i++) {
2530 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2531 continue;
2532 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2533 }
2534
2535 return 0;
2536 }
2537
2538 static void
rum_clr_shkey_regs(struct rum_softc * sc)2539 rum_clr_shkey_regs(struct rum_softc *sc)
2540 {
2541 rum_write(sc, RT2573_SEC_CSR0, 0);
2542 rum_write(sc, RT2573_SEC_CSR1, 0);
2543 rum_write(sc, RT2573_SEC_CSR5, 0);
2544 }
2545
2546 static int
rum_init(struct rum_softc * sc)2547 rum_init(struct rum_softc *sc)
2548 {
2549 struct ieee80211com *ic = &sc->sc_ic;
2550 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2551 uint32_t tmp;
2552 int i, ret;
2553
2554 RUM_LOCK(sc);
2555 if (sc->sc_running) {
2556 ret = 0;
2557 goto end;
2558 }
2559
2560 /* initialize MAC registers to default values */
2561 for (i = 0; i < nitems(rum_def_mac); i++)
2562 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
2563
2564 /* reset some WME parameters to default values */
2565 sc->wme_params[0].wmep_aifsn = 2;
2566 sc->wme_params[0].wmep_logcwmin = 4;
2567 sc->wme_params[0].wmep_logcwmax = 10;
2568
2569 /* set host ready */
2570 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2571 rum_write(sc, RT2573_MAC_CSR1, 0);
2572
2573 /* wait for BBP/RF to wakeup */
2574 if ((ret = rum_bbp_wakeup(sc)) != 0)
2575 goto end;
2576
2577 if ((ret = rum_bbp_init(sc)) != 0)
2578 goto end;
2579
2580 /* select default channel */
2581 rum_select_band(sc, ic->ic_curchan);
2582 rum_select_antenna(sc);
2583 rum_set_chan(sc, ic->ic_curchan);
2584
2585 /* clear STA registers */
2586 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2587
2588 /* clear security registers (if required) */
2589 if (sc->sc_clr_shkeys == 0) {
2590 rum_clr_shkey_regs(sc);
2591 sc->sc_clr_shkeys = 1;
2592 }
2593
2594 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2595
2596 /* initialize ASIC */
2597 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY);
2598
2599 /*
2600 * Allocate Tx and Rx xfer queues.
2601 */
2602 rum_setup_tx_list(sc);
2603
2604 /* update Rx filter */
2605 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2606
2607 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2608 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2609 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2610 RT2573_DROP_ACKCTS;
2611 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2612 tmp |= RT2573_DROP_TODS;
2613 if (ic->ic_promisc == 0)
2614 tmp |= RT2573_DROP_NOT_TO_ME;
2615 }
2616 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2617
2618 sc->sc_running = 1;
2619 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2620 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2621
2622 end: RUM_UNLOCK(sc);
2623
2624 if (ret != 0)
2625 rum_stop(sc);
2626
2627 return ret;
2628 }
2629
2630 static void
rum_stop(struct rum_softc * sc)2631 rum_stop(struct rum_softc *sc)
2632 {
2633
2634 RUM_LOCK(sc);
2635 if (!sc->sc_running) {
2636 RUM_UNLOCK(sc);
2637 return;
2638 }
2639 sc->sc_running = 0;
2640 RUM_UNLOCK(sc);
2641
2642 /*
2643 * Drain the USB transfers, if not already drained:
2644 */
2645 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2646 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2647
2648 RUM_LOCK(sc);
2649 rum_unsetup_tx_list(sc);
2650
2651 /* disable Rx */
2652 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX);
2653
2654 /* reset ASIC */
2655 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2656 rum_write(sc, RT2573_MAC_CSR1, 0);
2657 RUM_UNLOCK(sc);
2658 }
2659
2660 static void
rum_load_microcode(struct rum_softc * sc,const uint8_t * ucode,size_t size)2661 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2662 {
2663 uint16_t reg = RT2573_MCU_CODE_BASE;
2664 usb_error_t err;
2665
2666 /* copy firmware image into NIC */
2667 for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2668 err = rum_write(sc, reg, UGETDW(ucode));
2669 if (err) {
2670 /* firmware already loaded ? */
2671 device_printf(sc->sc_dev, "Firmware load "
2672 "failure! (ignored)\n");
2673 break;
2674 }
2675 }
2676
2677 err = rum_do_mcu_request(sc, RT2573_MCU_RUN);
2678 if (err != USB_ERR_NORMAL_COMPLETION) {
2679 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2680 usbd_errstr(err));
2681 }
2682
2683 /* give the chip some time to boot */
2684 rum_pause(sc, hz / 8);
2685 }
2686
2687 static int
rum_set_sleep_time(struct rum_softc * sc,uint16_t bintval)2688 rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval)
2689 {
2690 struct ieee80211com *ic = &sc->sc_ic;
2691 usb_error_t uerror;
2692 int exp, delay;
2693
2694 RUM_LOCK_ASSERT(sc);
2695
2696 exp = ic->ic_lintval / bintval;
2697 delay = ic->ic_lintval % bintval;
2698
2699 if (exp > RT2573_TBCN_EXP_MAX)
2700 exp = RT2573_TBCN_EXP_MAX;
2701 if (delay > RT2573_TBCN_DELAY_MAX)
2702 delay = RT2573_TBCN_DELAY_MAX;
2703
2704 uerror = rum_modbits(sc, RT2573_MAC_CSR11,
2705 RT2573_TBCN_EXP(exp) |
2706 RT2573_TBCN_DELAY(delay),
2707 RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) |
2708 RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX));
2709
2710 if (uerror != USB_ERR_NORMAL_COMPLETION)
2711 return (EIO);
2712
2713 sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay);
2714
2715 return (0);
2716 }
2717
2718 static int
rum_reset(struct ieee80211vap * vap,u_long cmd)2719 rum_reset(struct ieee80211vap *vap, u_long cmd)
2720 {
2721 struct ieee80211com *ic = vap->iv_ic;
2722 struct ieee80211_node *ni;
2723 struct rum_softc *sc = ic->ic_softc;
2724 int error;
2725
2726 switch (cmd) {
2727 case IEEE80211_IOC_POWERSAVE:
2728 case IEEE80211_IOC_PROTMODE:
2729 case IEEE80211_IOC_RTSTHRESHOLD:
2730 error = 0;
2731 break;
2732 case IEEE80211_IOC_POWERSAVESLEEP:
2733 ni = ieee80211_ref_node(vap->iv_bss);
2734
2735 RUM_LOCK(sc);
2736 error = rum_set_sleep_time(sc, ni->ni_intval);
2737 if (vap->iv_state == IEEE80211_S_SLEEP) {
2738 /* Use new values for wakeup timer. */
2739 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2740 rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2741 }
2742 /* XXX send reassoc */
2743 RUM_UNLOCK(sc);
2744
2745 ieee80211_free_node(ni);
2746 break;
2747 default:
2748 error = ENETRESET;
2749 break;
2750 }
2751
2752 return (error);
2753 }
2754
2755 static int
rum_set_beacon(struct rum_softc * sc,struct ieee80211vap * vap)2756 rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2757 {
2758 struct ieee80211com *ic = vap->iv_ic;
2759 struct rum_vap *rvp = RUM_VAP(vap);
2760 struct mbuf *m = rvp->bcn_mbuf;
2761 const struct ieee80211_txparam *tp;
2762 struct rum_tx_desc desc;
2763
2764 RUM_LOCK_ASSERT(sc);
2765
2766 if (m == NULL)
2767 return EINVAL;
2768 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC)
2769 return EINVAL;
2770
2771 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2772 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP,
2773 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate);
2774
2775 /* copy the Tx descriptor into NIC memory */
2776 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc,
2777 RT2573_TX_DESC_SIZE) != 0)
2778 return EIO;
2779
2780 /* copy beacon header and payload into NIC memory */
2781 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE,
2782 mtod(m, uint8_t *), m->m_pkthdr.len) != 0)
2783 return EIO;
2784
2785 return 0;
2786 }
2787
2788 static int
rum_alloc_beacon(struct rum_softc * sc,struct ieee80211vap * vap)2789 rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2790 {
2791 struct rum_vap *rvp = RUM_VAP(vap);
2792 struct ieee80211_node *ni = vap->iv_bss;
2793 struct mbuf *m;
2794
2795 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
2796 return EINVAL;
2797
2798 m = ieee80211_beacon_alloc(ni);
2799 if (m == NULL)
2800 return ENOMEM;
2801
2802 if (rvp->bcn_mbuf != NULL)
2803 m_freem(rvp->bcn_mbuf);
2804
2805 rvp->bcn_mbuf = m;
2806
2807 return (rum_set_beacon(sc, vap));
2808 }
2809
2810 static void
rum_update_beacon_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2811 rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data,
2812 uint8_t rvp_id)
2813 {
2814 struct ieee80211vap *vap = data->vap;
2815
2816 rum_set_beacon(sc, vap);
2817 }
2818
2819 static void
rum_update_beacon(struct ieee80211vap * vap,int item)2820 rum_update_beacon(struct ieee80211vap *vap, int item)
2821 {
2822 struct ieee80211com *ic = vap->iv_ic;
2823 struct rum_softc *sc = ic->ic_softc;
2824 struct rum_vap *rvp = RUM_VAP(vap);
2825 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
2826 struct ieee80211_node *ni = vap->iv_bss;
2827 struct mbuf *m = rvp->bcn_mbuf;
2828 int mcast = 0;
2829
2830 RUM_LOCK(sc);
2831 if (m == NULL) {
2832 m = ieee80211_beacon_alloc(ni);
2833 if (m == NULL) {
2834 device_printf(sc->sc_dev,
2835 "%s: could not allocate beacon frame\n", __func__);
2836 RUM_UNLOCK(sc);
2837 return;
2838 }
2839 rvp->bcn_mbuf = m;
2840 }
2841
2842 switch (item) {
2843 case IEEE80211_BEACON_ERP:
2844 rum_update_slot(ic);
2845 break;
2846 case IEEE80211_BEACON_TIM:
2847 mcast = 1; /*TODO*/
2848 break;
2849 default:
2850 break;
2851 }
2852 RUM_UNLOCK(sc);
2853
2854 setbit(bo->bo_flags, item);
2855 ieee80211_beacon_update(ni, m, mcast);
2856
2857 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb);
2858 }
2859
2860 static int
rum_common_key_set(struct rum_softc * sc,struct ieee80211_key * k,uint16_t base)2861 rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k,
2862 uint16_t base)
2863 {
2864
2865 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen))
2866 return EIO;
2867
2868 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
2869 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
2870 k->wk_txmic, 8))
2871 return EIO;
2872 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
2873 k->wk_rxmic, 8))
2874 return EIO;
2875 }
2876
2877 return 0;
2878 }
2879
2880 static void
rum_group_key_set_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2881 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data,
2882 uint8_t rvp_id)
2883 {
2884 struct ieee80211_key *k = &data->key;
2885 uint8_t mode;
2886
2887 if (sc->sc_clr_shkeys == 0) {
2888 rum_clr_shkey_regs(sc);
2889 sc->sc_clr_shkeys = 1;
2890 }
2891
2892 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2893 if (mode == 0)
2894 goto print_err;
2895
2896 DPRINTFN(1, "setting group key %d for vap %d, mode %d "
2897 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2898 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2899 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2900
2901 /* Install the key. */
2902 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0)
2903 goto print_err;
2904
2905 /* Set cipher mode. */
2906 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2907 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX,
2908 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX)
2909 != 0)
2910 goto print_err;
2911
2912 /* Mark this key as valid. */
2913 if (rum_setbits(sc, RT2573_SEC_CSR0,
2914 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0)
2915 goto print_err;
2916
2917 return;
2918
2919 print_err:
2920 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n",
2921 __func__, k->wk_keyix, rvp_id);
2922 }
2923
2924 static void
rum_group_key_del_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2925 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data,
2926 uint8_t rvp_id)
2927 {
2928 struct ieee80211_key *k = &data->key;
2929
2930 DPRINTF("%s: removing group key %d for vap %d\n", __func__,
2931 k->wk_keyix, rvp_id);
2932 rum_clrbits(sc,
2933 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2934 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX);
2935 rum_clrbits(sc, RT2573_SEC_CSR0,
2936 rvp_id * RT2573_SKEY_MAX + k->wk_keyix);
2937 }
2938
2939 static void
rum_pair_key_set_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2940 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data,
2941 uint8_t rvp_id)
2942 {
2943 struct ieee80211_key *k = &data->key;
2944 uint8_t buf[IEEE80211_ADDR_LEN + 1];
2945 uint8_t mode;
2946
2947 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2948 if (mode == 0)
2949 goto print_err;
2950
2951 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d "
2952 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2953 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2954 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2955
2956 /* Install the key. */
2957 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0)
2958 goto print_err;
2959
2960 IEEE80211_ADDR_COPY(buf, k->wk_macaddr);
2961 buf[IEEE80211_ADDR_LEN] = mode;
2962
2963 /* Set transmitter address and cipher mode. */
2964 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix),
2965 buf, sizeof buf) != 0)
2966 goto print_err;
2967
2968 /* Enable key table lookup for this vap. */
2969 if (sc->vap_key_count[rvp_id]++ == 0)
2970 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0)
2971 goto print_err;
2972
2973 /* Mark this key as valid. */
2974 if (rum_setbits(sc,
2975 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2976 1 << (k->wk_keyix % 32)) != 0)
2977 goto print_err;
2978
2979 return;
2980
2981 print_err:
2982 device_printf(sc->sc_dev,
2983 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix,
2984 rvp_id);
2985 }
2986
2987 static void
rum_pair_key_del_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2988 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data,
2989 uint8_t rvp_id)
2990 {
2991 struct ieee80211_key *k = &data->key;
2992
2993 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix);
2994 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2995 1 << (k->wk_keyix % 32));
2996 sc->keys_bmap &= ~(1ULL << k->wk_keyix);
2997 if (--sc->vap_key_count[rvp_id] == 0)
2998 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id);
2999 }
3000
3001 static int
rum_key_alloc(struct ieee80211vap * vap,struct ieee80211_key * k,ieee80211_keyix * keyix,ieee80211_keyix * rxkeyix)3002 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
3003 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
3004 {
3005 struct rum_softc *sc = vap->iv_ic->ic_softc;
3006 uint8_t i;
3007
3008 if (ieee80211_is_key_unicast(vap, k)) {
3009 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
3010 RUM_LOCK(sc);
3011 for (i = 0; i < RT2573_ADDR_MAX; i++) {
3012 if ((sc->keys_bmap & (1ULL << i)) == 0) {
3013 sc->keys_bmap |= (1ULL << i);
3014 *keyix = i;
3015 break;
3016 }
3017 }
3018 RUM_UNLOCK(sc);
3019 if (i == RT2573_ADDR_MAX) {
3020 device_printf(sc->sc_dev,
3021 "%s: no free space in the key table\n",
3022 __func__);
3023 return 0;
3024 }
3025 } else
3026 *keyix = 0;
3027 } else {
3028 *keyix = ieee80211_crypto_get_key_wepidx(vap, k);
3029 }
3030 *rxkeyix = *keyix;
3031 return 1;
3032 }
3033
3034 static int
rum_key_set(struct ieee80211vap * vap,const struct ieee80211_key * k)3035 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
3036 {
3037 struct rum_softc *sc = vap->iv_ic->ic_softc;
3038 int group;
3039
3040 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3041 /* Not for us. */
3042 return 1;
3043 }
3044
3045 group = ieee80211_is_key_global(vap, k);
3046
3047 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3048 group ? rum_group_key_set_cb : rum_pair_key_set_cb);
3049 }
3050
3051 static int
rum_key_delete(struct ieee80211vap * vap,const struct ieee80211_key * k)3052 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
3053 {
3054 struct rum_softc *sc = vap->iv_ic->ic_softc;
3055 int group;
3056
3057 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3058 /* Not for us. */
3059 return 1;
3060 }
3061
3062 group = ieee80211_is_key_global(vap, k);
3063
3064 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3065 group ? rum_group_key_del_cb : rum_pair_key_del_cb);
3066 }
3067
3068 static int
rum_raw_xmit(struct ieee80211_node * ni,struct mbuf * m,const struct ieee80211_bpf_params * params)3069 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3070 const struct ieee80211_bpf_params *params)
3071 {
3072 struct rum_softc *sc = ni->ni_ic->ic_softc;
3073 int ret;
3074
3075 RUM_LOCK(sc);
3076 /* prevent management frames from being sent if we're not ready */
3077 if (!sc->sc_running) {
3078 ret = ENETDOWN;
3079 goto bad;
3080 }
3081 if (sc->tx_nfree < RUM_TX_MINFREE) {
3082 ret = EIO;
3083 goto bad;
3084 }
3085
3086 if (params == NULL) {
3087 /*
3088 * Legacy path; interpret frame contents to decide
3089 * precisely how to send the frame.
3090 */
3091 if ((ret = rum_tx_mgt(sc, m, ni)) != 0)
3092 goto bad;
3093 } else {
3094 /*
3095 * Caller supplied explicit parameters to use in
3096 * sending the frame.
3097 */
3098 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0)
3099 goto bad;
3100 }
3101 RUM_UNLOCK(sc);
3102
3103 return 0;
3104 bad:
3105 RUM_UNLOCK(sc);
3106 m_freem(m);
3107 return ret;
3108 }
3109
3110 static void
rum_ratectl_start(struct rum_softc * sc,struct ieee80211_node * ni)3111 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
3112 {
3113 struct ieee80211vap *vap = ni->ni_vap;
3114 struct rum_vap *rvp = RUM_VAP(vap);
3115
3116 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
3117 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
3118
3119 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3120 }
3121
3122 static void
rum_ratectl_timeout(void * arg)3123 rum_ratectl_timeout(void *arg)
3124 {
3125 struct rum_vap *rvp = arg;
3126 struct ieee80211vap *vap = &rvp->vap;
3127 struct ieee80211com *ic = vap->iv_ic;
3128
3129 ieee80211_runtask(ic, &rvp->ratectl_task);
3130 }
3131
3132 static void
rum_ratectl_task(void * arg,int pending)3133 rum_ratectl_task(void *arg, int pending)
3134 {
3135 struct rum_vap *rvp = arg;
3136 struct ieee80211vap *vap = &rvp->vap;
3137 struct rum_softc *sc = vap->iv_ic->ic_softc;
3138 struct ieee80211_ratectl_tx_stats *txs = &sc->sc_txs;
3139 int ok[3], fail;
3140
3141 RUM_LOCK(sc);
3142 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */
3143 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
3144
3145 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */
3146 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */
3147 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */
3148 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
3149
3150 txs->flags = IEEE80211_RATECTL_TX_STATS_RETRIES;
3151 txs->nframes = ok[0] + ok[1] + ok[2] + fail;
3152 txs->nsuccess = txs->nframes - fail;
3153 /* XXX at least */
3154 txs->nretries = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1);
3155
3156 if (txs->nframes != 0)
3157 ieee80211_ratectl_tx_update(vap, txs);
3158
3159 /* count TX retry-fail as Tx errors */
3160 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail);
3161
3162 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3163 RUM_UNLOCK(sc);
3164 }
3165
3166 static void
rum_scan_start(struct ieee80211com * ic)3167 rum_scan_start(struct ieee80211com *ic)
3168 {
3169 struct rum_softc *sc = ic->ic_softc;
3170
3171 RUM_LOCK(sc);
3172 rum_abort_tsf_sync(sc);
3173 rum_set_bssid(sc, ieee80211broadcastaddr);
3174 RUM_UNLOCK(sc);
3175
3176 }
3177
3178 static void
rum_scan_end(struct ieee80211com * ic)3179 rum_scan_end(struct ieee80211com *ic)
3180 {
3181 struct rum_softc *sc = ic->ic_softc;
3182
3183 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
3184 RUM_LOCK(sc);
3185 if (ic->ic_opmode != IEEE80211_M_AHDEMO)
3186 rum_enable_tsf_sync(sc);
3187 else
3188 rum_enable_tsf(sc);
3189 rum_set_bssid(sc, sc->sc_bssid);
3190 RUM_UNLOCK(sc);
3191 }
3192 }
3193
3194 static void
rum_set_channel(struct ieee80211com * ic)3195 rum_set_channel(struct ieee80211com *ic)
3196 {
3197 struct rum_softc *sc = ic->ic_softc;
3198
3199 RUM_LOCK(sc);
3200 rum_set_chan(sc, ic->ic_curchan);
3201 RUM_UNLOCK(sc);
3202 }
3203
3204 static void
rum_getradiocaps(struct ieee80211com * ic,int maxchans,int * nchans,struct ieee80211_channel chans[])3205 rum_getradiocaps(struct ieee80211com *ic,
3206 int maxchans, int *nchans, struct ieee80211_channel chans[])
3207 {
3208 struct rum_softc *sc = ic->ic_softc;
3209 uint8_t bands[IEEE80211_MODE_BYTES];
3210
3211 memset(bands, 0, sizeof(bands));
3212 setbit(bands, IEEE80211_MODE_11B);
3213 setbit(bands, IEEE80211_MODE_11G);
3214 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0);
3215
3216 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
3217 setbit(bands, IEEE80211_MODE_11A);
3218 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
3219 rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0);
3220 }
3221 }
3222
3223 static int
rum_get_rssi(struct rum_softc * sc,uint8_t raw)3224 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
3225 {
3226 struct ieee80211com *ic = &sc->sc_ic;
3227 int lna, agc, rssi;
3228
3229 lna = (raw >> 5) & 0x3;
3230 agc = raw & 0x1f;
3231
3232 if (lna == 0) {
3233 /*
3234 * No RSSI mapping
3235 *
3236 * NB: Since RSSI is relative to noise floor, -1 is
3237 * adequate for caller to know error happened.
3238 */
3239 return -1;
3240 }
3241
3242 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
3243
3244 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
3245 rssi += sc->rssi_2ghz_corr;
3246
3247 if (lna == 1)
3248 rssi -= 64;
3249 else if (lna == 2)
3250 rssi -= 74;
3251 else if (lna == 3)
3252 rssi -= 90;
3253 } else {
3254 rssi += sc->rssi_5ghz_corr;
3255
3256 if (!sc->ext_5ghz_lna && lna != 1)
3257 rssi += 4;
3258
3259 if (lna == 1)
3260 rssi -= 64;
3261 else if (lna == 2)
3262 rssi -= 86;
3263 else if (lna == 3)
3264 rssi -= 100;
3265 }
3266 return rssi;
3267 }
3268
3269 static int
rum_pause(struct rum_softc * sc,int timeout)3270 rum_pause(struct rum_softc *sc, int timeout)
3271 {
3272
3273 usb_pause_mtx(&sc->sc_mtx, timeout);
3274 return (0);
3275 }
3276
3277 static device_method_t rum_methods[] = {
3278 /* Device interface */
3279 DEVMETHOD(device_probe, rum_match),
3280 DEVMETHOD(device_attach, rum_attach),
3281 DEVMETHOD(device_detach, rum_detach),
3282 DEVMETHOD_END
3283 };
3284
3285 static driver_t rum_driver = {
3286 .name = "rum",
3287 .methods = rum_methods,
3288 .size = sizeof(struct rum_softc),
3289 };
3290
3291 DRIVER_MODULE(rum, uhub, rum_driver, NULL, NULL);
3292 MODULE_DEPEND(rum, wlan, 1, 1, 1);
3293 MODULE_DEPEND(rum, usb, 1, 1, 1);
3294 MODULE_VERSION(rum, 1);
3295 USB_PNP_HOST_INFO(rum_devs);
3296