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 /*-
22 * Ralink Technology RT2501USB/RT2601USB chipset driver
23 * http://www.ralinktech.com.tw/
24 */
25
26 #include "opt_wlan.h"
27
28 #include <sys/param.h>
29 #include <sys/sockio.h>
30 #include <sys/sysctl.h>
31 #include <sys/lock.h>
32 #include <sys/mutex.h>
33 #include <sys/mbuf.h>
34 #include <sys/kernel.h>
35 #include <sys/socket.h>
36 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/module.h>
39 #include <sys/bus.h>
40 #include <sys/endian.h>
41 #include <sys/kdb.h>
42
43 #include <net/bpf.h>
44 #include <net/if.h>
45 #include <net/if_var.h>
46 #include <net/if_arp.h>
47 #include <net/ethernet.h>
48 #include <net/if_dl.h>
49 #include <net/if_media.h>
50 #include <net/if_types.h>
51
52 #ifdef INET
53 #include <netinet/in.h>
54 #include <netinet/in_systm.h>
55 #include <netinet/in_var.h>
56 #include <netinet/if_ether.h>
57 #include <netinet/ip.h>
58 #endif
59
60 #include <net80211/ieee80211_var.h>
61 #include <net80211/ieee80211_regdomain.h>
62 #include <net80211/ieee80211_radiotap.h>
63 #include <net80211/ieee80211_ratectl.h>
64
65 #include <dev/usb/usb.h>
66 #include <dev/usb/usbdi.h>
67 #include "usbdevs.h"
68
69 #define USB_DEBUG_VAR rum_debug
70 #include <dev/usb/usb_debug.h>
71
72 #include <dev/usb/wlan/if_rumreg.h>
73 #include <dev/usb/wlan/if_rumvar.h>
74 #include <dev/usb/wlan/if_rumfw.h>
75
76 #ifdef USB_DEBUG
77 static int rum_debug = 0;
78
79 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
80 "USB rum");
81 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0,
82 "Debug level");
83 #endif
84
85 static const STRUCT_USB_HOST_ID rum_devs[] = {
86 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
87 RUM_DEV(ABOCOM, HWU54DM),
88 RUM_DEV(ABOCOM, RT2573_2),
89 RUM_DEV(ABOCOM, RT2573_3),
90 RUM_DEV(ABOCOM, RT2573_4),
91 RUM_DEV(ABOCOM, WUG2700),
92 RUM_DEV(AMIT, CGWLUSB2GO),
93 RUM_DEV(ASUS, RT2573_1),
94 RUM_DEV(ASUS, RT2573_2),
95 RUM_DEV(BELKIN, F5D7050A),
96 RUM_DEV(BELKIN, F5D9050V3),
97 RUM_DEV(CISCOLINKSYS, WUSB54GC),
98 RUM_DEV(CISCOLINKSYS, WUSB54GR),
99 RUM_DEV(CONCEPTRONIC2, C54RU2),
100 RUM_DEV(COREGA, CGWLUSB2GL),
101 RUM_DEV(COREGA, CGWLUSB2GPX),
102 RUM_DEV(DICKSMITH, CWD854F),
103 RUM_DEV(DICKSMITH, RT2573),
104 RUM_DEV(EDIMAX, EW7318USG),
105 RUM_DEV(DLINK2, DWLG122C1),
106 RUM_DEV(DLINK2, WUA1340),
107 RUM_DEV(DLINK2, DWA111),
108 RUM_DEV(DLINK2, DWA110),
109 RUM_DEV(GIGABYTE, GNWB01GS),
110 RUM_DEV(GIGABYTE, GNWI05GS),
111 RUM_DEV(GIGASET, RT2573),
112 RUM_DEV(GOODWAY, RT2573),
113 RUM_DEV(GUILLEMOT, HWGUSB254LB),
114 RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
115 RUM_DEV(HUAWEI3COM, WUB320G),
116 RUM_DEV(MELCO, G54HP),
117 RUM_DEV(MELCO, SG54HP),
118 RUM_DEV(MELCO, SG54HG),
119 RUM_DEV(MELCO, WLIUCG),
120 RUM_DEV(MELCO, WLRUCG),
121 RUM_DEV(MELCO, WLRUCGAOSS),
122 RUM_DEV(MSI, RT2573_1),
123 RUM_DEV(MSI, RT2573_2),
124 RUM_DEV(MSI, RT2573_3),
125 RUM_DEV(MSI, RT2573_4),
126 RUM_DEV(NOVATECH, RT2573),
127 RUM_DEV(PLANEX2, GWUS54HP),
128 RUM_DEV(PLANEX2, GWUS54MINI2),
129 RUM_DEV(PLANEX2, GWUSMM),
130 RUM_DEV(QCOM, RT2573),
131 RUM_DEV(QCOM, RT2573_2),
132 RUM_DEV(QCOM, RT2573_3),
133 RUM_DEV(RALINK, RT2573),
134 RUM_DEV(RALINK, RT2573_2),
135 RUM_DEV(RALINK, RT2671),
136 RUM_DEV(SITECOMEU, WL113R2),
137 RUM_DEV(SITECOMEU, WL172),
138 RUM_DEV(SPARKLAN, RT2573),
139 RUM_DEV(SURECOM, RT2573),
140 #undef RUM_DEV
141 };
142
143 static device_probe_t rum_match;
144 static device_attach_t rum_attach;
145 static device_detach_t rum_detach;
146
147 static usb_callback_t rum_bulk_read_callback;
148 static usb_callback_t rum_bulk_write_callback;
149
150 static usb_error_t rum_do_request(struct rum_softc *sc,
151 struct usb_device_request *req, void *data);
152 static usb_error_t rum_do_mcu_request(struct rum_softc *sc, int);
153 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
154 const char [IFNAMSIZ], int, enum ieee80211_opmode,
155 int, const uint8_t [IEEE80211_ADDR_LEN],
156 const uint8_t [IEEE80211_ADDR_LEN]);
157 static void rum_vap_delete(struct ieee80211vap *);
158 static void rum_cmdq_cb(void *, int);
159 static int rum_cmd_sleepable(struct rum_softc *, const void *,
160 size_t, uint8_t, CMD_FUNC_PROTO);
161 static void rum_tx_free(struct rum_tx_data *, int);
162 static void rum_setup_tx_list(struct rum_softc *);
163 static void rum_reset_tx_list(struct rum_softc *,
164 struct ieee80211vap *);
165 static void rum_unsetup_tx_list(struct rum_softc *);
166 static void rum_beacon_miss(struct ieee80211vap *);
167 static void rum_sta_recv_mgmt(struct ieee80211_node *,
168 struct mbuf *, int,
169 const struct ieee80211_rx_stats *, int, int);
170 static int rum_set_power_state(struct rum_softc *, int);
171 static int rum_newstate(struct ieee80211vap *,
172 enum ieee80211_state, int);
173 static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int);
174 static void rum_setup_tx_desc(struct rum_softc *,
175 struct rum_tx_desc *, struct ieee80211_key *,
176 uint32_t, uint8_t, uint8_t, int, int, int);
177 static uint32_t rum_tx_crypto_flags(struct rum_softc *,
178 struct ieee80211_node *,
179 const struct ieee80211_key *);
180 static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
181 struct ieee80211_node *);
182 static int rum_tx_raw(struct rum_softc *, struct mbuf *,
183 struct ieee80211_node *,
184 const struct ieee80211_bpf_params *);
185 static int rum_tx_data(struct rum_softc *, struct mbuf *,
186 struct ieee80211_node *);
187 static int rum_transmit(struct ieee80211com *, struct mbuf *);
188 static void rum_start(struct rum_softc *);
189 static void rum_parent(struct ieee80211com *);
190 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
191 int);
192 static uint32_t rum_read(struct rum_softc *, uint16_t);
193 static void rum_read_multi(struct rum_softc *, uint16_t, void *,
194 int);
195 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
196 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t,
197 const void *, size_t);
198 static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t);
199 static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t);
200 static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t,
201 uint32_t);
202 static int rum_bbp_busy(struct rum_softc *);
203 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
204 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
205 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
206 static void rum_select_antenna(struct rum_softc *);
207 static void rum_enable_mrr(struct rum_softc *);
208 static void rum_set_txpreamble(struct rum_softc *);
209 static void rum_set_basicrates(struct rum_softc *);
210 static void rum_select_band(struct rum_softc *,
211 struct ieee80211_channel *);
212 static void rum_set_chan(struct rum_softc *,
213 struct ieee80211_channel *);
214 static void rum_set_maxretry(struct rum_softc *,
215 struct ieee80211vap *);
216 static int rum_enable_tsf_sync(struct rum_softc *);
217 static void rum_enable_tsf(struct rum_softc *);
218 static void rum_abort_tsf_sync(struct rum_softc *);
219 static void rum_get_tsf(struct rum_softc *, uint64_t *);
220 static void rum_update_slot_cb(struct rum_softc *,
221 union sec_param *, uint8_t);
222 static void rum_update_slot(struct ieee80211com *);
223 static int rum_wme_update(struct ieee80211com *);
224 static void rum_set_bssid(struct rum_softc *, const uint8_t *);
225 static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
226 static void rum_update_mcast(struct ieee80211com *);
227 static void rum_update_promisc(struct ieee80211com *);
228 static void rum_setpromisc(struct rum_softc *);
229 static const char *rum_get_rf(int);
230 static void rum_read_eeprom(struct rum_softc *);
231 static int rum_bbp_wakeup(struct rum_softc *);
232 static int rum_bbp_init(struct rum_softc *);
233 static void rum_clr_shkey_regs(struct rum_softc *);
234 static int rum_init(struct rum_softc *);
235 static void rum_stop(struct rum_softc *);
236 static void rum_load_microcode(struct rum_softc *, const uint8_t *,
237 size_t);
238 static int rum_set_sleep_time(struct rum_softc *, uint16_t);
239 static int rum_reset(struct ieee80211vap *, u_long);
240 static int rum_set_beacon(struct rum_softc *,
241 struct ieee80211vap *);
242 static int rum_alloc_beacon(struct rum_softc *,
243 struct ieee80211vap *);
244 static void rum_update_beacon_cb(struct rum_softc *,
245 union sec_param *, uint8_t);
246 static void rum_update_beacon(struct ieee80211vap *, int);
247 static int rum_common_key_set(struct rum_softc *,
248 struct ieee80211_key *, uint16_t);
249 static void rum_group_key_set_cb(struct rum_softc *,
250 union sec_param *, uint8_t);
251 static void rum_group_key_del_cb(struct rum_softc *,
252 union sec_param *, uint8_t);
253 static void rum_pair_key_set_cb(struct rum_softc *,
254 union sec_param *, uint8_t);
255 static void rum_pair_key_del_cb(struct rum_softc *,
256 union sec_param *, uint8_t);
257 static int rum_key_alloc(struct ieee80211vap *,
258 struct ieee80211_key *, ieee80211_keyix *,
259 ieee80211_keyix *);
260 static int rum_key_set(struct ieee80211vap *,
261 const struct ieee80211_key *);
262 static int rum_key_delete(struct ieee80211vap *,
263 const struct ieee80211_key *);
264 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
265 const struct ieee80211_bpf_params *);
266 static void rum_scan_start(struct ieee80211com *);
267 static void rum_scan_end(struct ieee80211com *);
268 static void rum_set_channel(struct ieee80211com *);
269 static void rum_getradiocaps(struct ieee80211com *, int, int *,
270 struct ieee80211_channel[]);
271 static int rum_get_rssi(struct rum_softc *, uint8_t);
272 static void rum_ratectl_start(struct rum_softc *,
273 struct ieee80211_node *);
274 static void rum_ratectl_timeout(void *);
275 static void rum_ratectl_task(void *, int);
276 static int rum_pause(struct rum_softc *, int);
277
278 static const struct {
279 uint32_t reg;
280 uint32_t val;
281 } rum_def_mac[] = {
282 { RT2573_TXRX_CSR0, 0x025fb032 },
283 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
284 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
285 { RT2573_TXRX_CSR3, 0x00858687 },
286 { RT2573_TXRX_CSR7, 0x2e31353b },
287 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
288 { RT2573_TXRX_CSR15, 0x0000000f },
289 { RT2573_MAC_CSR6, 0x00000fff },
290 { RT2573_MAC_CSR8, 0x016c030a },
291 { RT2573_MAC_CSR10, 0x00000718 },
292 { RT2573_MAC_CSR12, 0x00000004 },
293 { RT2573_MAC_CSR13, 0x00007f00 },
294 { RT2573_SEC_CSR2, 0x00000000 },
295 { RT2573_SEC_CSR3, 0x00000000 },
296 { RT2573_SEC_CSR4, 0x00000000 },
297 { RT2573_PHY_CSR1, 0x000023b0 },
298 { RT2573_PHY_CSR5, 0x00040a06 },
299 { RT2573_PHY_CSR6, 0x00080606 },
300 { RT2573_PHY_CSR7, 0x00000408 },
301 { RT2573_AIFSN_CSR, 0x00002273 },
302 { RT2573_CWMIN_CSR, 0x00002344 },
303 { RT2573_CWMAX_CSR, 0x000034aa }
304 };
305
306 static const struct {
307 uint8_t reg;
308 uint8_t val;
309 } rum_def_bbp[] = {
310 { 3, 0x80 },
311 { 15, 0x30 },
312 { 17, 0x20 },
313 { 21, 0xc8 },
314 { 22, 0x38 },
315 { 23, 0x06 },
316 { 24, 0xfe },
317 { 25, 0x0a },
318 { 26, 0x0d },
319 { 32, 0x0b },
320 { 34, 0x12 },
321 { 37, 0x07 },
322 { 39, 0xf8 },
323 { 41, 0x60 },
324 { 53, 0x10 },
325 { 54, 0x18 },
326 { 60, 0x10 },
327 { 61, 0x04 },
328 { 62, 0x04 },
329 { 75, 0xfe },
330 { 86, 0xfe },
331 { 88, 0xfe },
332 { 90, 0x0f },
333 { 99, 0x00 },
334 { 102, 0x16 },
335 { 107, 0x04 }
336 };
337
338 static const uint8_t rum_chan_5ghz[] =
339 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64,
340 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
341 149, 153, 157, 161, 165 };
342
343 static const struct rfprog {
344 uint8_t chan;
345 uint32_t r1, r2, r3, r4;
346 } rum_rf5226[] = {
347 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
348 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
349 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
350 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
351 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
352 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
353 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
354 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
355 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
356 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
357 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
358 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
359 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
360 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
361
362 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
363 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
364 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
365 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
366
367 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
368 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
369 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
370 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
371 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
372 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
373 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
374 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
375
376 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
377 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
378 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
379 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
380 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
381 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
382 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
383 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
384 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
385 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
386 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
387
388 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
389 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
390 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
391 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
392 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
393 }, rum_rf5225[] = {
394 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
395 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
396 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
397 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
398 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
399 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
400 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
401 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
402 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
403 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
404 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
405 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
406 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
407 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
408
409 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
410 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
411 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
412 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
413
414 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
415 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
416 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
417 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
418 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
419 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
420 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
421 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
422
423 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
424 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
425 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
426 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
427 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
428 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
429 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
430 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
431 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
432 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
433 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
434
435 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
436 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
437 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
438 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
439 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
440 };
441
442 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
443 [RUM_BULK_WR] = {
444 .type = UE_BULK,
445 .endpoint = UE_ADDR_ANY,
446 .direction = UE_DIR_OUT,
447 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
448 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
449 .callback = rum_bulk_write_callback,
450 .timeout = 5000, /* ms */
451 },
452 [RUM_BULK_RD] = {
453 .type = UE_BULK,
454 .endpoint = UE_ADDR_ANY,
455 .direction = UE_DIR_IN,
456 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
457 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
458 .callback = rum_bulk_read_callback,
459 },
460 };
461
462 static int
rum_match(device_t self)463 rum_match(device_t self)
464 {
465 struct usb_attach_arg *uaa = device_get_ivars(self);
466
467 if (uaa->usb_mode != USB_MODE_HOST)
468 return (ENXIO);
469 if (uaa->info.bConfigIndex != 0)
470 return (ENXIO);
471 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
472 return (ENXIO);
473
474 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
475 }
476
477 static int
rum_attach(device_t self)478 rum_attach(device_t self)
479 {
480 struct usb_attach_arg *uaa = device_get_ivars(self);
481 struct rum_softc *sc = device_get_softc(self);
482 struct ieee80211com *ic = &sc->sc_ic;
483 uint32_t tmp;
484 uint8_t iface_index;
485 int error, ntries;
486
487 device_set_usb_desc(self);
488 sc->sc_udev = uaa->device;
489 sc->sc_dev = self;
490
491 RUM_LOCK_INIT(sc);
492 RUM_CMDQ_LOCK_INIT(sc);
493 mbufq_init(&sc->sc_snd, ifqmaxlen);
494
495 iface_index = RT2573_IFACE_INDEX;
496 error = usbd_transfer_setup(uaa->device, &iface_index,
497 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
498 if (error) {
499 device_printf(self, "could not allocate USB transfers, "
500 "err=%s\n", usbd_errstr(error));
501 goto detach;
502 }
503
504 RUM_LOCK(sc);
505 /* retrieve RT2573 rev. no */
506 for (ntries = 0; ntries < 100; ntries++) {
507 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
508 break;
509 if (rum_pause(sc, hz / 100))
510 break;
511 }
512 if (ntries == 100) {
513 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
514 RUM_UNLOCK(sc);
515 goto detach;
516 }
517
518 /* retrieve MAC address and various other things from EEPROM */
519 rum_read_eeprom(sc);
520
521 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
522 tmp, rum_get_rf(sc->rf_rev));
523
524 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
525 RUM_UNLOCK(sc);
526
527 ic->ic_softc = sc;
528 ic->ic_name = device_get_nameunit(self);
529 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
530
531 /* set device capabilities */
532 ic->ic_caps =
533 IEEE80211_C_STA /* station mode supported */
534 | IEEE80211_C_IBSS /* IBSS mode supported */
535 | IEEE80211_C_MONITOR /* monitor mode supported */
536 | IEEE80211_C_HOSTAP /* HostAp mode supported */
537 | IEEE80211_C_AHDEMO /* adhoc demo mode */
538 | IEEE80211_C_TXPMGT /* tx power management */
539 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
540 | IEEE80211_C_SHSLOT /* short slot time supported */
541 | IEEE80211_C_BGSCAN /* bg scanning supported */
542 | IEEE80211_C_WPA /* 802.11i */
543 | IEEE80211_C_WME /* 802.11e */
544 | IEEE80211_C_PMGT /* Station-side power mgmt */
545 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */
546 ;
547
548 ic->ic_cryptocaps =
549 IEEE80211_CRYPTO_WEP |
550 IEEE80211_CRYPTO_AES_CCM |
551 IEEE80211_CRYPTO_TKIPMIC |
552 IEEE80211_CRYPTO_TKIP;
553
554 rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
555 ic->ic_channels);
556
557 ieee80211_ifattach(ic);
558 ic->ic_update_promisc = rum_update_promisc;
559 ic->ic_raw_xmit = rum_raw_xmit;
560 ic->ic_scan_start = rum_scan_start;
561 ic->ic_scan_end = rum_scan_end;
562 ic->ic_set_channel = rum_set_channel;
563 ic->ic_getradiocaps = rum_getradiocaps;
564 ic->ic_transmit = rum_transmit;
565 ic->ic_parent = rum_parent;
566 ic->ic_vap_create = rum_vap_create;
567 ic->ic_vap_delete = rum_vap_delete;
568 ic->ic_updateslot = rum_update_slot;
569 ic->ic_wme.wme_update = rum_wme_update;
570 ic->ic_update_mcast = rum_update_mcast;
571
572 ieee80211_radiotap_attach(ic,
573 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
574 RT2573_TX_RADIOTAP_PRESENT,
575 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
576 RT2573_RX_RADIOTAP_PRESENT);
577
578 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc);
579
580 if (bootverbose)
581 ieee80211_announce(ic);
582
583 return (0);
584
585 detach:
586 rum_detach(self);
587 return (ENXIO); /* failure */
588 }
589
590 static int
rum_detach(device_t self)591 rum_detach(device_t self)
592 {
593 struct rum_softc *sc = device_get_softc(self);
594 struct ieee80211com *ic = &sc->sc_ic;
595
596 /* Prevent further ioctls */
597 RUM_LOCK(sc);
598 sc->sc_detached = 1;
599 RUM_UNLOCK(sc);
600
601 /* stop all USB transfers */
602 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
603
604 /* free TX list, if any */
605 RUM_LOCK(sc);
606 rum_unsetup_tx_list(sc);
607 RUM_UNLOCK(sc);
608
609 if (ic->ic_softc == sc) {
610 ieee80211_draintask(ic, &sc->cmdq_task);
611 ieee80211_ifdetach(ic);
612 }
613
614 mbufq_drain(&sc->sc_snd);
615 RUM_CMDQ_LOCK_DESTROY(sc);
616 RUM_LOCK_DESTROY(sc);
617
618 return (0);
619 }
620
621 static usb_error_t
rum_do_request(struct rum_softc * sc,struct usb_device_request * req,void * data)622 rum_do_request(struct rum_softc *sc,
623 struct usb_device_request *req, void *data)
624 {
625 usb_error_t err;
626 int ntries = 10;
627
628 while (ntries--) {
629 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
630 req, data, 0, NULL, 250 /* ms */);
631 if (err == 0)
632 break;
633
634 DPRINTFN(1, "Control request failed, %s (retrying)\n",
635 usbd_errstr(err));
636 if (rum_pause(sc, hz / 100))
637 break;
638 }
639 return (err);
640 }
641
642 static usb_error_t
rum_do_mcu_request(struct rum_softc * sc,int request)643 rum_do_mcu_request(struct rum_softc *sc, int request)
644 {
645 struct usb_device_request req;
646
647 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
648 req.bRequest = RT2573_MCU_CNTL;
649 USETW(req.wValue, request);
650 USETW(req.wIndex, 0);
651 USETW(req.wLength, 0);
652
653 return (rum_do_request(sc, &req, NULL));
654 }
655
656 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])657 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
658 enum ieee80211_opmode opmode, int flags,
659 const uint8_t bssid[IEEE80211_ADDR_LEN],
660 const uint8_t mac[IEEE80211_ADDR_LEN])
661 {
662 struct rum_softc *sc = ic->ic_softc;
663 struct rum_vap *rvp;
664 struct ieee80211vap *vap;
665
666 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
667 return NULL;
668 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO);
669 vap = &rvp->vap;
670 /* enable s/w bmiss handling for sta mode */
671
672 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
673 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
674 /* out of memory */
675 free(rvp, M_80211_VAP);
676 return (NULL);
677 }
678
679 /* override state transition machine */
680 rvp->newstate = vap->iv_newstate;
681 vap->iv_newstate = rum_newstate;
682 vap->iv_key_alloc = rum_key_alloc;
683 vap->iv_key_set = rum_key_set;
684 vap->iv_key_delete = rum_key_delete;
685 vap->iv_update_beacon = rum_update_beacon;
686 vap->iv_reset = rum_reset;
687 vap->iv_max_aid = RT2573_ADDR_MAX;
688
689 if (opmode == IEEE80211_M_STA) {
690 /*
691 * Move device to the sleep state when
692 * beacon is received and there is no data for us.
693 *
694 * Used only for IEEE80211_S_SLEEP state.
695 */
696 rvp->recv_mgmt = vap->iv_recv_mgmt;
697 vap->iv_recv_mgmt = rum_sta_recv_mgmt;
698
699 /* Ignored while sleeping. */
700 rvp->bmiss = vap->iv_bmiss;
701 vap->iv_bmiss = rum_beacon_miss;
702 }
703
704 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
705 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
706 ieee80211_ratectl_init(vap);
707 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
708 /* complete setup */
709 ieee80211_vap_attach(vap, ieee80211_media_change,
710 ieee80211_media_status, mac);
711 ic->ic_opmode = opmode;
712 return vap;
713 }
714
715 static void
rum_vap_delete(struct ieee80211vap * vap)716 rum_vap_delete(struct ieee80211vap *vap)
717 {
718 struct rum_vap *rvp = RUM_VAP(vap);
719 struct ieee80211com *ic = vap->iv_ic;
720 struct rum_softc *sc = ic->ic_softc;
721 int i;
722
723 /* Put vap into INIT state. */
724 ieee80211_new_state(vap, IEEE80211_S_INIT, -1);
725 for (i = 0; i < NET80211_IV_NSTATE_NUM; i++)
726 ieee80211_draintask(ic, &vap->iv_nstate_task[i]);
727
728 RUM_LOCK(sc);
729 /* Cancel any unfinished Tx. */
730 rum_reset_tx_list(sc, vap);
731 RUM_UNLOCK(sc);
732
733 usb_callout_drain(&rvp->ratectl_ch);
734 ieee80211_draintask(ic, &rvp->ratectl_task);
735 ieee80211_ratectl_deinit(vap);
736 ieee80211_vap_detach(vap);
737 m_freem(rvp->bcn_mbuf);
738 free(rvp, M_80211_VAP);
739 }
740
741 static void
rum_cmdq_cb(void * arg,int pending)742 rum_cmdq_cb(void *arg, int pending)
743 {
744 struct rum_softc *sc = arg;
745 struct rum_cmdq *rc;
746
747 RUM_CMDQ_LOCK(sc);
748 while (sc->cmdq[sc->cmdq_first].func != NULL) {
749 rc = &sc->cmdq[sc->cmdq_first];
750 RUM_CMDQ_UNLOCK(sc);
751
752 RUM_LOCK(sc);
753 rc->func(sc, &rc->data, rc->rvp_id);
754 RUM_UNLOCK(sc);
755
756 RUM_CMDQ_LOCK(sc);
757 memset(rc, 0, sizeof (*rc));
758 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE;
759 }
760 RUM_CMDQ_UNLOCK(sc);
761 }
762
763 static int
rum_cmd_sleepable(struct rum_softc * sc,const void * ptr,size_t len,uint8_t rvp_id,CMD_FUNC_PROTO)764 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len,
765 uint8_t rvp_id, CMD_FUNC_PROTO)
766 {
767 struct ieee80211com *ic = &sc->sc_ic;
768
769 KASSERT(len <= sizeof(union sec_param), ("buffer overflow"));
770
771 RUM_CMDQ_LOCK(sc);
772 if (sc->cmdq[sc->cmdq_last].func != NULL) {
773 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__);
774 RUM_CMDQ_UNLOCK(sc);
775
776 return EAGAIN;
777 }
778
779 if (ptr != NULL)
780 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len);
781 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id;
782 sc->cmdq[sc->cmdq_last].func = func;
783 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE;
784 RUM_CMDQ_UNLOCK(sc);
785
786 ieee80211_runtask(ic, &sc->cmdq_task);
787
788 return 0;
789 }
790
791 static void
rum_tx_free(struct rum_tx_data * data,int txerr)792 rum_tx_free(struct rum_tx_data *data, int txerr)
793 {
794 struct rum_softc *sc = data->sc;
795
796 if (data->m != NULL) {
797 ieee80211_tx_complete(data->ni, data->m, txerr);
798 data->m = NULL;
799 data->ni = NULL;
800 }
801 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
802 sc->tx_nfree++;
803 }
804
805 static void
rum_setup_tx_list(struct rum_softc * sc)806 rum_setup_tx_list(struct rum_softc *sc)
807 {
808 struct rum_tx_data *data;
809 int i;
810
811 sc->tx_nfree = 0;
812 STAILQ_INIT(&sc->tx_q);
813 STAILQ_INIT(&sc->tx_free);
814
815 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
816 data = &sc->tx_data[i];
817
818 data->sc = sc;
819 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
820 sc->tx_nfree++;
821 }
822 }
823
824 static void
rum_reset_tx_list(struct rum_softc * sc,struct ieee80211vap * vap)825 rum_reset_tx_list(struct rum_softc *sc, struct ieee80211vap *vap)
826 {
827 struct rum_tx_data *data, *tmp;
828
829 KASSERT(vap != NULL, ("%s: vap is NULL\n", __func__));
830
831 STAILQ_FOREACH_SAFE(data, &sc->tx_q, next, tmp) {
832 if (data->ni != NULL && data->ni->ni_vap == vap) {
833 ieee80211_free_node(data->ni);
834 data->ni = NULL;
835
836 KASSERT(data->m != NULL, ("%s: m is NULL\n",
837 __func__));
838 m_freem(data->m);
839 data->m = NULL;
840
841 STAILQ_REMOVE(&sc->tx_q, data, rum_tx_data, next);
842 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
843 sc->tx_nfree++;
844 }
845 }
846 }
847
848 static void
rum_unsetup_tx_list(struct rum_softc * sc)849 rum_unsetup_tx_list(struct rum_softc *sc)
850 {
851 struct rum_tx_data *data;
852 int i;
853
854 /* make sure any subsequent use of the queues will fail */
855 sc->tx_nfree = 0;
856 STAILQ_INIT(&sc->tx_q);
857 STAILQ_INIT(&sc->tx_free);
858
859 /* free up all node references and mbufs */
860 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
861 data = &sc->tx_data[i];
862
863 if (data->m != NULL) {
864 m_freem(data->m);
865 data->m = NULL;
866 }
867 if (data->ni != NULL) {
868 ieee80211_free_node(data->ni);
869 data->ni = NULL;
870 }
871 }
872 }
873
874 static void
rum_beacon_miss(struct ieee80211vap * vap)875 rum_beacon_miss(struct ieee80211vap *vap)
876 {
877 struct ieee80211com *ic = vap->iv_ic;
878 struct rum_softc *sc = ic->ic_softc;
879 struct rum_vap *rvp = RUM_VAP(vap);
880 int sleep;
881
882 RUM_LOCK(sc);
883 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) {
884 DPRINTFN(12, "dropping 'sleeping' bit, "
885 "device must be awake now\n");
886
887 sc->sc_sleeping = 0;
888 }
889
890 sleep = sc->sc_sleeping;
891 RUM_UNLOCK(sc);
892
893 if (!sleep)
894 rvp->bmiss(vap);
895 #ifdef USB_DEBUG
896 else
897 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n");
898 #endif
899 }
900
901 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)902 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
903 const struct ieee80211_rx_stats *rxs,
904 int rssi, int nf)
905 {
906 struct ieee80211vap *vap = ni->ni_vap;
907 struct rum_softc *sc = vap->iv_ic->ic_softc;
908 struct rum_vap *rvp = RUM_VAP(vap);
909
910 if (vap->iv_state == IEEE80211_S_SLEEP &&
911 subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
912 RUM_LOCK(sc);
913 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n",
914 !!(sc->last_rx_flags & RT2573_RX_MYBSS),
915 sc->last_rx_flags);
916
917 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) ==
918 (RT2573_RX_MYBSS | RT2573_RX_BC)) {
919 /*
920 * Put it to sleep here; in case if there is a data
921 * for us, iv_recv_mgmt() will wakeup the device via
922 * SLEEP -> RUN state transition.
923 */
924 rum_set_power_state(sc, 1);
925 }
926 RUM_UNLOCK(sc);
927 }
928
929 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf);
930 }
931
932 static int
rum_set_power_state(struct rum_softc * sc,int sleep)933 rum_set_power_state(struct rum_softc *sc, int sleep)
934 {
935 usb_error_t uerror;
936
937 RUM_LOCK_ASSERT(sc);
938
939 DPRINTFN(12, "moving to %s state (sleep time %u)\n",
940 sleep ? "sleep" : "awake", sc->sc_sleep_time);
941
942 uerror = rum_do_mcu_request(sc,
943 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP);
944 if (uerror != USB_ERR_NORMAL_COMPLETION) {
945 device_printf(sc->sc_dev,
946 "%s: could not change power state: %s\n",
947 __func__, usbd_errstr(uerror));
948 return (EIO);
949 }
950
951 sc->sc_sleeping = !!sleep;
952 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0;
953
954 return (0);
955 }
956
957 static int
rum_newstate(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)958 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
959 {
960 struct rum_vap *rvp = RUM_VAP(vap);
961 struct ieee80211com *ic = vap->iv_ic;
962 struct rum_softc *sc = ic->ic_softc;
963 const struct ieee80211_txparam *tp;
964 enum ieee80211_state ostate;
965 struct ieee80211_node *ni;
966 usb_error_t uerror;
967 int ret = 0;
968
969 ostate = vap->iv_state;
970 DPRINTF("%s -> %s\n",
971 ieee80211_state_name[ostate],
972 ieee80211_state_name[nstate]);
973
974 IEEE80211_UNLOCK(ic);
975 RUM_LOCK(sc);
976 usb_callout_stop(&rvp->ratectl_ch);
977
978 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) {
979 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
980 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
981
982 /*
983 * Ignore any errors;
984 * any subsequent TX will wakeup it anyway
985 */
986 (void) rum_set_power_state(sc, 0);
987 }
988
989 switch (nstate) {
990 case IEEE80211_S_INIT:
991 if (ostate == IEEE80211_S_RUN)
992 rum_abort_tsf_sync(sc);
993
994 break;
995
996 case IEEE80211_S_RUN:
997 if (ostate == IEEE80211_S_SLEEP)
998 break; /* already handled */
999
1000 ni = ieee80211_ref_node(vap->iv_bss);
1001
1002 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
1003 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1004 ni->ni_chan == IEEE80211_CHAN_ANYC) {
1005 ret = EINVAL;
1006 goto run_fail;
1007 }
1008 rum_update_slot_cb(sc, NULL, 0);
1009 rum_enable_mrr(sc);
1010 rum_set_txpreamble(sc);
1011 rum_set_basicrates(sc);
1012 rum_set_maxretry(sc, vap);
1013 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
1014 rum_set_bssid(sc, sc->sc_bssid);
1015 }
1016
1017 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1018 vap->iv_opmode == IEEE80211_M_IBSS) {
1019 if ((ret = rum_alloc_beacon(sc, vap)) != 0)
1020 goto run_fail;
1021 }
1022
1023 if (vap->iv_opmode != IEEE80211_M_MONITOR &&
1024 vap->iv_opmode != IEEE80211_M_AHDEMO) {
1025 if ((ret = rum_enable_tsf_sync(sc)) != 0)
1026 goto run_fail;
1027 } else
1028 rum_enable_tsf(sc);
1029
1030 /* enable automatic rate adaptation */
1031 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1032 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
1033 rum_ratectl_start(sc, ni);
1034 run_fail:
1035 ieee80211_free_node(ni);
1036 break;
1037 case IEEE80211_S_SLEEP:
1038 /* Implemented for STA mode only. */
1039 if (vap->iv_opmode != IEEE80211_M_STA)
1040 break;
1041
1042 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
1043 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1044 ret = EIO;
1045 break;
1046 }
1047
1048 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
1049 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1050 ret = EIO;
1051 break;
1052 }
1053
1054 ret = rum_set_power_state(sc, 1);
1055 if (ret != 0) {
1056 device_printf(sc->sc_dev,
1057 "%s: could not move to the SLEEP state: %s\n",
1058 __func__, usbd_errstr(uerror));
1059 }
1060 break;
1061 default:
1062 break;
1063 }
1064 RUM_UNLOCK(sc);
1065 IEEE80211_LOCK(ic);
1066 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret);
1067 }
1068
1069 static void
rum_bulk_write_callback(struct usb_xfer * xfer,usb_error_t error)1070 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1071 {
1072 struct rum_softc *sc = usbd_xfer_softc(xfer);
1073 struct ieee80211vap *vap;
1074 struct rum_tx_data *data;
1075 struct mbuf *m;
1076 struct usb_page_cache *pc;
1077 unsigned len;
1078 int actlen, sumlen;
1079
1080 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1081
1082 switch (USB_GET_STATE(xfer)) {
1083 case USB_ST_TRANSFERRED:
1084 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
1085
1086 /* free resources */
1087 data = usbd_xfer_get_priv(xfer);
1088 rum_tx_free(data, 0);
1089 usbd_xfer_set_priv(xfer, NULL);
1090
1091 /* FALLTHROUGH */
1092 case USB_ST_SETUP:
1093 tr_setup:
1094 data = STAILQ_FIRST(&sc->tx_q);
1095 if (data) {
1096 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
1097 m = data->m;
1098
1099 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
1100 DPRINTFN(0, "data overflow, %u bytes\n",
1101 m->m_pkthdr.len);
1102 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
1103 }
1104 pc = usbd_xfer_get_frame(xfer, 0);
1105 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
1106 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
1107 m->m_pkthdr.len);
1108
1109 vap = data->ni->ni_vap;
1110 if (ieee80211_radiotap_active_vap(vap)) {
1111 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1112
1113 tap->wt_flags = 0;
1114 tap->wt_rate = data->rate;
1115 tap->wt_antenna = sc->tx_ant;
1116
1117 ieee80211_radiotap_tx(vap, m);
1118 }
1119
1120 /* align end on a 4-bytes boundary */
1121 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
1122 if ((len % 64) == 0)
1123 len += 4;
1124
1125 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
1126 m->m_pkthdr.len, len);
1127
1128 usbd_xfer_set_frame_len(xfer, 0, len);
1129 usbd_xfer_set_priv(xfer, data);
1130
1131 usbd_transfer_submit(xfer);
1132 }
1133 rum_start(sc);
1134 break;
1135
1136 default: /* Error */
1137 DPRINTFN(11, "transfer error, %s\n",
1138 usbd_errstr(error));
1139
1140 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1141 data = usbd_xfer_get_priv(xfer);
1142 if (data != NULL) {
1143 rum_tx_free(data, error);
1144 usbd_xfer_set_priv(xfer, NULL);
1145 }
1146
1147 if (error != USB_ERR_CANCELLED) {
1148 if (error == USB_ERR_TIMEOUT)
1149 device_printf(sc->sc_dev, "device timeout\n");
1150
1151 /*
1152 * Try to clear stall first, also if other
1153 * errors occur, hence clearing stall
1154 * introduces a 50 ms delay:
1155 */
1156 usbd_xfer_set_stall(xfer);
1157 goto tr_setup;
1158 }
1159 break;
1160 }
1161 }
1162
1163 static void
rum_bulk_read_callback(struct usb_xfer * xfer,usb_error_t error)1164 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1165 {
1166 struct rum_softc *sc = usbd_xfer_softc(xfer);
1167 struct ieee80211com *ic = &sc->sc_ic;
1168 struct ieee80211_frame_min *wh;
1169 struct ieee80211_node *ni;
1170 struct mbuf *m = NULL;
1171 struct usb_page_cache *pc;
1172 uint32_t flags;
1173 uint8_t rssi = 0;
1174 int len;
1175
1176 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
1177
1178 switch (USB_GET_STATE(xfer)) {
1179 case USB_ST_TRANSFERRED:
1180
1181 DPRINTFN(15, "rx done, actlen=%d\n", len);
1182
1183 if (len < RT2573_RX_DESC_SIZE) {
1184 DPRINTF("%s: xfer too short %d\n",
1185 device_get_nameunit(sc->sc_dev), len);
1186 counter_u64_add(ic->ic_ierrors, 1);
1187 goto tr_setup;
1188 }
1189
1190 len -= RT2573_RX_DESC_SIZE;
1191 pc = usbd_xfer_get_frame(xfer, 0);
1192 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
1193
1194 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
1195 flags = le32toh(sc->sc_rx_desc.flags);
1196 sc->last_rx_flags = flags;
1197 if (len < ((flags >> 16) & 0xfff)) {
1198 DPRINTFN(5, "%s: frame is truncated from %d to %d "
1199 "bytes\n", device_get_nameunit(sc->sc_dev),
1200 (flags >> 16) & 0xfff, len);
1201 counter_u64_add(ic->ic_ierrors, 1);
1202 goto tr_setup;
1203 }
1204 len = (flags >> 16) & 0xfff;
1205 if (len < sizeof(struct ieee80211_frame_ack)) {
1206 DPRINTFN(5, "%s: frame too short %d\n",
1207 device_get_nameunit(sc->sc_dev), len);
1208 counter_u64_add(ic->ic_ierrors, 1);
1209 goto tr_setup;
1210 }
1211 if (flags & RT2573_RX_CRC_ERROR) {
1212 /*
1213 * This should not happen since we did not
1214 * request to receive those frames when we
1215 * filled RUM_TXRX_CSR2:
1216 */
1217 DPRINTFN(5, "PHY or CRC error\n");
1218 counter_u64_add(ic->ic_ierrors, 1);
1219 goto tr_setup;
1220 }
1221 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) {
1222 switch (flags & RT2573_RX_DEC_MASK) {
1223 case RT2573_RX_IV_ERROR:
1224 DPRINTFN(5, "IV/EIV error\n");
1225 break;
1226 case RT2573_RX_MIC_ERROR:
1227 DPRINTFN(5, "MIC error\n");
1228 break;
1229 case RT2573_RX_KEY_ERROR:
1230 DPRINTFN(5, "Key error\n");
1231 break;
1232 }
1233 counter_u64_add(ic->ic_ierrors, 1);
1234 goto tr_setup;
1235 }
1236
1237 m = m_get2(len, M_NOWAIT, MT_DATA, M_PKTHDR);
1238 if (m == NULL) {
1239 DPRINTF("could not allocate mbuf\n");
1240 counter_u64_add(ic->ic_ierrors, 1);
1241 goto tr_setup;
1242 }
1243 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
1244 mtod(m, uint8_t *), len);
1245
1246 wh = mtod(m, struct ieee80211_frame_min *);
1247
1248 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1249 (flags & RT2573_RX_CIP_MASK) !=
1250 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) {
1251 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
1252 m->m_flags |= M_WEP;
1253 }
1254
1255 /* finalize mbuf */
1256 m->m_pkthdr.len = m->m_len = len;
1257
1258 if (ieee80211_radiotap_active(ic)) {
1259 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
1260
1261 tap->wr_flags = 0;
1262 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
1263 (flags & RT2573_RX_OFDM) ?
1264 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1265 rum_get_tsf(sc, &tap->wr_tsf);
1266 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
1267 tap->wr_antnoise = RT2573_NOISE_FLOOR;
1268 tap->wr_antenna = sc->rx_ant;
1269 }
1270 /* FALLTHROUGH */
1271 case USB_ST_SETUP:
1272 tr_setup:
1273 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1274 usbd_transfer_submit(xfer);
1275
1276 /*
1277 * At the end of a USB callback it is always safe to unlock
1278 * the private mutex of a device! That is why we do the
1279 * "ieee80211_input" here, and not some lines up!
1280 */
1281 RUM_UNLOCK(sc);
1282 if (m) {
1283 if (m->m_len >= sizeof(struct ieee80211_frame_min))
1284 ni = ieee80211_find_rxnode(ic, wh);
1285 else
1286 ni = NULL;
1287
1288 if (ni != NULL) {
1289 (void) ieee80211_input(ni, m, rssi,
1290 RT2573_NOISE_FLOOR);
1291 ieee80211_free_node(ni);
1292 } else
1293 (void) ieee80211_input_all(ic, m, rssi,
1294 RT2573_NOISE_FLOOR);
1295 }
1296 RUM_LOCK(sc);
1297 rum_start(sc);
1298 return;
1299
1300 default: /* Error */
1301 if (error != USB_ERR_CANCELLED) {
1302 /* try to clear stall first */
1303 usbd_xfer_set_stall(xfer);
1304 goto tr_setup;
1305 }
1306 return;
1307 }
1308 }
1309
1310 static uint8_t
rum_plcp_signal(int rate)1311 rum_plcp_signal(int rate)
1312 {
1313 switch (rate) {
1314 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1315 case 12: return 0xb;
1316 case 18: return 0xf;
1317 case 24: return 0xa;
1318 case 36: return 0xe;
1319 case 48: return 0x9;
1320 case 72: return 0xd;
1321 case 96: return 0x8;
1322 case 108: return 0xc;
1323
1324 /* CCK rates (NB: not IEEE std, device-specific) */
1325 case 2: return 0x0;
1326 case 4: return 0x1;
1327 case 11: return 0x2;
1328 case 22: return 0x3;
1329 }
1330 return 0xff; /* XXX unsupported/unknown rate */
1331 }
1332
1333 /*
1334 * Map net80211 cipher to RT2573 security mode.
1335 */
1336 static uint8_t
rum_crypto_mode(struct rum_softc * sc,u_int cipher,int keylen)1337 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen)
1338 {
1339 switch (cipher) {
1340 case IEEE80211_CIPHER_WEP:
1341 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104);
1342 case IEEE80211_CIPHER_TKIP:
1343 return RT2573_MODE_TKIP;
1344 case IEEE80211_CIPHER_AES_CCM:
1345 return RT2573_MODE_AES_CCMP;
1346 default:
1347 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher);
1348 return 0;
1349 }
1350 }
1351
1352 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)1353 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1354 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid,
1355 int hdrlen, int len, int rate)
1356 {
1357 struct ieee80211com *ic = &sc->sc_ic;
1358 struct wmeParams *wmep = &sc->wme_params[qid];
1359 uint16_t plcp_length;
1360 int remainder;
1361
1362 flags |= RT2573_TX_VALID;
1363 flags |= len << 16;
1364
1365 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1366 const struct ieee80211_cipher *cip = k->wk_cipher;
1367
1368 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen;
1369
1370 desc->eiv = 0; /* for WEP */
1371 cip->ic_setiv(k, (uint8_t *)&desc->iv);
1372 }
1373
1374 /* setup PLCP fields */
1375 desc->plcp_signal = rum_plcp_signal(rate);
1376 desc->plcp_service = 4;
1377
1378 len += IEEE80211_CRC_LEN;
1379 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1380 flags |= RT2573_TX_OFDM;
1381
1382 plcp_length = len & 0xfff;
1383 desc->plcp_length_hi = plcp_length >> 6;
1384 desc->plcp_length_lo = plcp_length & 0x3f;
1385 } else {
1386 if (rate == 0)
1387 rate = 2; /* avoid division by zero */
1388 plcp_length = howmany(16 * len, rate);
1389 if (rate == 22) {
1390 remainder = (16 * len) % 22;
1391 if (remainder != 0 && remainder < 7)
1392 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1393 }
1394 desc->plcp_length_hi = plcp_length >> 8;
1395 desc->plcp_length_lo = plcp_length & 0xff;
1396
1397 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1398 desc->plcp_signal |= 0x08;
1399 }
1400
1401 desc->flags = htole32(flags);
1402 desc->hdrlen = hdrlen;
1403 desc->xflags = xflags;
1404
1405 desc->wme = htole16(RT2573_QID(qid) |
1406 RT2573_AIFSN(wmep->wmep_aifsn) |
1407 RT2573_LOGCWMIN(wmep->wmep_logcwmin) |
1408 RT2573_LOGCWMAX(wmep->wmep_logcwmax));
1409 }
1410
1411 static int
rum_sendprot(struct rum_softc * sc,const struct mbuf * m,struct ieee80211_node * ni,int prot,int rate)1412 rum_sendprot(struct rum_softc *sc,
1413 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1414 {
1415 struct ieee80211com *ic = ni->ni_ic;
1416 struct rum_tx_data *data;
1417 struct mbuf *mprot;
1418 int protrate, flags;
1419
1420 RUM_LOCK_ASSERT(sc);
1421
1422 mprot = ieee80211_alloc_prot(ni, m, rate, prot);
1423 if (mprot == NULL) {
1424 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1);
1425 device_printf(sc->sc_dev,
1426 "could not allocate mbuf for protection mode %d\n", prot);
1427 return (ENOBUFS);
1428 }
1429
1430 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1431 flags = 0;
1432 if (prot == IEEE80211_PROT_RTSCTS)
1433 flags |= RT2573_TX_NEED_ACK;
1434
1435 data = STAILQ_FIRST(&sc->tx_free);
1436 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1437 sc->tx_nfree--;
1438
1439 data->m = mprot;
1440 data->ni = ieee80211_ref_node(ni);
1441 data->rate = protrate;
1442 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0,
1443 mprot->m_pkthdr.len, protrate);
1444
1445 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1446 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1447
1448 return 0;
1449 }
1450
1451 static uint32_t
rum_tx_crypto_flags(struct rum_softc * sc,struct ieee80211_node * ni,const struct ieee80211_key * k)1452 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni,
1453 const struct ieee80211_key *k)
1454 {
1455 struct ieee80211vap *vap = ni->ni_vap;
1456 u_int cipher;
1457 uint32_t flags = 0;
1458 uint8_t mode, pos;
1459
1460 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1461 cipher = k->wk_cipher->ic_cipher;
1462 pos = k->wk_keyix;
1463 mode = rum_crypto_mode(sc, cipher,
1464 ieee80211_crypto_get_key_len(k));
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 (IEEE80211_IS_MGMT_PROBE_RESP(wh))
1530 flags |= RT2573_TX_TIMESTAMP;
1531 }
1532
1533 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1534 xflags |= RT2573_TX_HWSEQ;
1535
1536 if (k != NULL)
1537 flags |= rum_tx_crypto_flags(sc, ni, k);
1538
1539 data->m = m0;
1540 data->ni = ni;
1541 data->rate = tp->mgmtrate;
1542
1543 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1544 m0->m_pkthdr.len, tp->mgmtrate);
1545
1546 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1547 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1548
1549 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1550 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1551
1552 return (0);
1553 }
1554
1555 static int
rum_tx_raw(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni,const struct ieee80211_bpf_params * params)1556 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1557 const struct ieee80211_bpf_params *params)
1558 {
1559 struct ieee80211com *ic = ni->ni_ic;
1560 struct ieee80211_frame *wh;
1561 struct rum_tx_data *data;
1562 uint32_t flags;
1563 uint8_t ac, type, xflags = 0;
1564 int rate, error;
1565
1566 RUM_LOCK_ASSERT(sc);
1567
1568 wh = mtod(m0, struct ieee80211_frame *);
1569 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1570
1571 ac = params->ibp_pri & 3;
1572
1573 rate = params->ibp_rate0;
1574 if (!ieee80211_isratevalid(ic->ic_rt, rate))
1575 return (EINVAL);
1576
1577 flags = 0;
1578 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1579 flags |= RT2573_TX_NEED_ACK;
1580 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1581 error = rum_sendprot(sc, m0, ni,
1582 params->ibp_flags & IEEE80211_BPF_RTS ?
1583 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1584 rate);
1585 if (error || sc->tx_nfree == 0)
1586 return (ENOBUFS);
1587
1588 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1589 }
1590
1591 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1592 xflags |= RT2573_TX_HWSEQ;
1593
1594 data = STAILQ_FIRST(&sc->tx_free);
1595 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1596 sc->tx_nfree--;
1597
1598 data->m = m0;
1599 data->ni = ni;
1600 data->rate = rate;
1601
1602 /* XXX need to setup descriptor ourself */
1603 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0,
1604 m0->m_pkthdr.len, rate);
1605
1606 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1607 m0->m_pkthdr.len, rate);
1608
1609 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1610 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1611
1612 return 0;
1613 }
1614
1615 static int
rum_tx_data(struct rum_softc * sc,struct mbuf * m0,struct ieee80211_node * ni)1616 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1617 {
1618 struct ieee80211vap *vap = ni->ni_vap;
1619 struct ieee80211com *ic = &sc->sc_ic;
1620 struct rum_tx_data *data;
1621 struct ieee80211_frame *wh;
1622 const struct ieee80211_txparam *tp = ni->ni_txparms;
1623 struct ieee80211_key *k = NULL;
1624 uint32_t flags = 0;
1625 uint16_t dur;
1626 uint8_t ac, type, qos, xflags = 0;
1627 int error, hdrlen, rate;
1628
1629 RUM_LOCK_ASSERT(sc);
1630
1631 wh = mtod(m0, struct ieee80211_frame *);
1632 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1633 hdrlen = ieee80211_anyhdrsize(wh);
1634
1635 if (IEEE80211_QOS_HAS_SEQ(wh))
1636 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
1637 else
1638 qos = 0;
1639 ac = M_WME_GETAC(m0);
1640
1641 if (m0->m_flags & M_EAPOL)
1642 rate = tp->mgmtrate;
1643 else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1644 rate = tp->mcastrate;
1645 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1646 rate = tp->ucastrate;
1647 else {
1648 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1649 rate = ieee80211_node_get_txrate_dot11rate(ni);
1650 }
1651
1652 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1653 k = ieee80211_crypto_get_txkey(ni, m0);
1654 if (k == NULL) {
1655 m_freem(m0);
1656 return (ENOENT);
1657 }
1658 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1659 !k->wk_cipher->ic_encap(k, m0)) {
1660 m_freem(m0);
1661 return (ENOBUFS);
1662 }
1663
1664 /* packet header may have moved, reset our local pointer */
1665 wh = mtod(m0, struct ieee80211_frame *);
1666 }
1667
1668 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1669 xflags |= RT2573_TX_HWSEQ;
1670
1671 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1672 int prot = IEEE80211_PROT_NONE;
1673 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1674 prot = IEEE80211_PROT_RTSCTS;
1675 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1676 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1677 prot = ic->ic_protmode;
1678 if (prot != IEEE80211_PROT_NONE) {
1679 error = rum_sendprot(sc, m0, ni, prot, rate);
1680 if (error || sc->tx_nfree == 0) {
1681 m_freem(m0);
1682 return ENOBUFS;
1683 }
1684 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1685 }
1686 }
1687
1688 if (k != NULL)
1689 flags |= rum_tx_crypto_flags(sc, ni, k);
1690
1691 data = STAILQ_FIRST(&sc->tx_free);
1692 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1693 sc->tx_nfree--;
1694
1695 data->m = m0;
1696 data->ni = ni;
1697 data->rate = rate;
1698
1699 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1700 /* Unicast frame, check if an ACK is expected. */
1701 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
1702 IEEE80211_QOS_ACKPOLICY_NOACK)
1703 flags |= RT2573_TX_NEED_ACK;
1704
1705 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1706 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1707 USETW(wh->i_dur, dur);
1708 }
1709
1710 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1711 m0->m_pkthdr.len, rate);
1712
1713 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1714 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1715
1716 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1717 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1718
1719 return 0;
1720 }
1721
1722 static int
rum_transmit(struct ieee80211com * ic,struct mbuf * m)1723 rum_transmit(struct ieee80211com *ic, struct mbuf *m)
1724 {
1725 struct rum_softc *sc = ic->ic_softc;
1726 int error;
1727
1728 RUM_LOCK(sc);
1729 if (!sc->sc_running) {
1730 RUM_UNLOCK(sc);
1731 return (ENXIO);
1732 }
1733 error = mbufq_enqueue(&sc->sc_snd, m);
1734 if (error) {
1735 RUM_UNLOCK(sc);
1736 return (error);
1737 }
1738 rum_start(sc);
1739 RUM_UNLOCK(sc);
1740
1741 return (0);
1742 }
1743
1744 static void
rum_start(struct rum_softc * sc)1745 rum_start(struct rum_softc *sc)
1746 {
1747 struct ieee80211_node *ni;
1748 struct mbuf *m;
1749
1750 RUM_LOCK_ASSERT(sc);
1751
1752 if (!sc->sc_running)
1753 return;
1754
1755 while (sc->tx_nfree >= RUM_TX_MINFREE &&
1756 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1757 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1758 if (rum_tx_data(sc, m, ni) != 0) {
1759 if_inc_counter(ni->ni_vap->iv_ifp,
1760 IFCOUNTER_OERRORS, 1);
1761 ieee80211_free_node(ni);
1762 break;
1763 }
1764 }
1765 }
1766
1767 static void
rum_parent(struct ieee80211com * ic)1768 rum_parent(struct ieee80211com *ic)
1769 {
1770 struct rum_softc *sc = ic->ic_softc;
1771 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1772
1773 RUM_LOCK(sc);
1774 if (sc->sc_detached) {
1775 RUM_UNLOCK(sc);
1776 return;
1777 }
1778 RUM_UNLOCK(sc);
1779
1780 if (ic->ic_nrunning > 0) {
1781 if (rum_init(sc) == 0)
1782 ieee80211_start_all(ic);
1783 else
1784 ieee80211_stop(vap);
1785 } else
1786 rum_stop(sc);
1787 }
1788
1789 static void
rum_eeprom_read(struct rum_softc * sc,uint16_t addr,void * buf,int len)1790 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1791 {
1792 struct usb_device_request req;
1793 usb_error_t error;
1794
1795 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1796 req.bRequest = RT2573_READ_EEPROM;
1797 USETW(req.wValue, 0);
1798 USETW(req.wIndex, addr);
1799 USETW(req.wLength, len);
1800
1801 error = rum_do_request(sc, &req, buf);
1802 if (error != 0) {
1803 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1804 usbd_errstr(error));
1805 }
1806 }
1807
1808 static uint32_t
rum_read(struct rum_softc * sc,uint16_t reg)1809 rum_read(struct rum_softc *sc, uint16_t reg)
1810 {
1811 uint32_t val;
1812
1813 rum_read_multi(sc, reg, &val, sizeof val);
1814
1815 return le32toh(val);
1816 }
1817
1818 static void
rum_read_multi(struct rum_softc * sc,uint16_t reg,void * buf,int len)1819 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1820 {
1821 struct usb_device_request req;
1822 usb_error_t error;
1823
1824 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1825 req.bRequest = RT2573_READ_MULTI_MAC;
1826 USETW(req.wValue, 0);
1827 USETW(req.wIndex, reg);
1828 USETW(req.wLength, len);
1829
1830 error = rum_do_request(sc, &req, buf);
1831 if (error != 0) {
1832 device_printf(sc->sc_dev,
1833 "could not multi read MAC register: %s\n",
1834 usbd_errstr(error));
1835 }
1836 }
1837
1838 static usb_error_t
rum_write(struct rum_softc * sc,uint16_t reg,uint32_t val)1839 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1840 {
1841 uint32_t tmp = htole32(val);
1842
1843 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1844 }
1845
1846 static usb_error_t
rum_write_multi(struct rum_softc * sc,uint16_t reg,const void * buf,size_t len)1847 rum_write_multi(struct rum_softc *sc, uint16_t reg, const void *buf,
1848 size_t len)
1849 {
1850 struct usb_device_request req;
1851 usb_error_t error;
1852 size_t offset;
1853
1854 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1855 req.bRequest = RT2573_WRITE_MULTI_MAC;
1856 USETW(req.wValue, 0);
1857
1858 /* write at most 64 bytes at a time */
1859 for (offset = 0; offset < len; offset += 64) {
1860 USETW(req.wIndex, reg + offset);
1861 USETW(req.wLength, MIN(len - offset, 64));
1862
1863 error = rum_do_request(sc, &req, __DECONST(char *, buf)
1864 + 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, ieee80211_crypto_get_key_data(k),
2866 ieee80211_crypto_get_key_len(k)))
2867 return EIO;
2868
2869 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
2870 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
2871 ieee80211_crypto_get_key_txmic_data(k), 8))
2872 return EIO;
2873 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
2874 ieee80211_crypto_get_key_rxmic_data(k), 8))
2875 return EIO;
2876 }
2877
2878 return 0;
2879 }
2880
2881 static void
rum_group_key_set_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2882 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data,
2883 uint8_t rvp_id)
2884 {
2885 struct ieee80211_key *k = &data->key;
2886 uint8_t mode;
2887
2888 if (sc->sc_clr_shkeys == 0) {
2889 rum_clr_shkey_regs(sc);
2890 sc->sc_clr_shkeys = 1;
2891 }
2892
2893 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher,
2894 ieee80211_crypto_get_key_len(k));
2895 if (mode == 0)
2896 goto print_err;
2897
2898 DPRINTFN(1, "setting group key %d for vap %d, mode %d "
2899 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2900 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2901 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2902
2903 /* Install the key. */
2904 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0)
2905 goto print_err;
2906
2907 /* Set cipher mode. */
2908 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2909 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX,
2910 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX)
2911 != 0)
2912 goto print_err;
2913
2914 /* Mark this key as valid. */
2915 if (rum_setbits(sc, RT2573_SEC_CSR0,
2916 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0)
2917 goto print_err;
2918
2919 return;
2920
2921 print_err:
2922 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n",
2923 __func__, k->wk_keyix, rvp_id);
2924 }
2925
2926 static void
rum_group_key_del_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2927 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data,
2928 uint8_t rvp_id)
2929 {
2930 struct ieee80211_key *k = &data->key;
2931
2932 DPRINTF("%s: removing group key %d for vap %d\n", __func__,
2933 k->wk_keyix, rvp_id);
2934 rum_clrbits(sc,
2935 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2936 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX);
2937 rum_clrbits(sc, RT2573_SEC_CSR0,
2938 rvp_id * RT2573_SKEY_MAX + k->wk_keyix);
2939 }
2940
2941 static void
rum_pair_key_set_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2942 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data,
2943 uint8_t rvp_id)
2944 {
2945 struct ieee80211_key *k = &data->key;
2946 uint8_t buf[IEEE80211_ADDR_LEN + 1];
2947 uint8_t mode;
2948
2949 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher,
2950 ieee80211_crypto_get_key_len(k));
2951 if (mode == 0)
2952 goto print_err;
2953
2954 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d "
2955 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2956 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2957 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2958
2959 /* Install the key. */
2960 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0)
2961 goto print_err;
2962
2963 IEEE80211_ADDR_COPY(buf, k->wk_macaddr);
2964 buf[IEEE80211_ADDR_LEN] = mode;
2965
2966 /* Set transmitter address and cipher mode. */
2967 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix),
2968 buf, sizeof buf) != 0)
2969 goto print_err;
2970
2971 /* Enable key table lookup for this vap. */
2972 if (sc->vap_key_count[rvp_id]++ == 0)
2973 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0)
2974 goto print_err;
2975
2976 /* Mark this key as valid. */
2977 if (rum_setbits(sc,
2978 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2979 1 << (k->wk_keyix % 32)) != 0)
2980 goto print_err;
2981
2982 return;
2983
2984 print_err:
2985 device_printf(sc->sc_dev,
2986 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix,
2987 rvp_id);
2988 }
2989
2990 static void
rum_pair_key_del_cb(struct rum_softc * sc,union sec_param * data,uint8_t rvp_id)2991 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data,
2992 uint8_t rvp_id)
2993 {
2994 struct ieee80211_key *k = &data->key;
2995
2996 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix);
2997 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2998 1 << (k->wk_keyix % 32));
2999 sc->keys_bmap &= ~(1ULL << k->wk_keyix);
3000 if (--sc->vap_key_count[rvp_id] == 0)
3001 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id);
3002 }
3003
3004 static int
rum_key_alloc(struct ieee80211vap * vap,struct ieee80211_key * k,ieee80211_keyix * keyix,ieee80211_keyix * rxkeyix)3005 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
3006 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
3007 {
3008 struct rum_softc *sc = vap->iv_ic->ic_softc;
3009 uint8_t i;
3010
3011 if (ieee80211_is_key_unicast(vap, k)) {
3012 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
3013 RUM_LOCK(sc);
3014 for (i = 0; i < RT2573_ADDR_MAX; i++) {
3015 if ((sc->keys_bmap & (1ULL << i)) == 0) {
3016 sc->keys_bmap |= (1ULL << i);
3017 *keyix = i;
3018 break;
3019 }
3020 }
3021 RUM_UNLOCK(sc);
3022 if (i == RT2573_ADDR_MAX) {
3023 device_printf(sc->sc_dev,
3024 "%s: no free space in the key table\n",
3025 __func__);
3026 return 0;
3027 }
3028 } else
3029 *keyix = 0;
3030 } else {
3031 *keyix = ieee80211_crypto_get_key_wepidx(vap, k);
3032 }
3033 *rxkeyix = *keyix;
3034 return 1;
3035 }
3036
3037 static int
rum_key_set(struct ieee80211vap * vap,const struct ieee80211_key * k)3038 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
3039 {
3040 struct rum_softc *sc = vap->iv_ic->ic_softc;
3041 int group;
3042
3043 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3044 /* Not for us. */
3045 return 1;
3046 }
3047
3048 group = ieee80211_is_key_global(vap, k);
3049
3050 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3051 group ? rum_group_key_set_cb : rum_pair_key_set_cb);
3052 }
3053
3054 static int
rum_key_delete(struct ieee80211vap * vap,const struct ieee80211_key * k)3055 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
3056 {
3057 struct rum_softc *sc = vap->iv_ic->ic_softc;
3058 int group;
3059
3060 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3061 /* Not for us. */
3062 return 1;
3063 }
3064
3065 group = ieee80211_is_key_global(vap, k);
3066
3067 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3068 group ? rum_group_key_del_cb : rum_pair_key_del_cb);
3069 }
3070
3071 static int
rum_raw_xmit(struct ieee80211_node * ni,struct mbuf * m,const struct ieee80211_bpf_params * params)3072 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3073 const struct ieee80211_bpf_params *params)
3074 {
3075 struct rum_softc *sc = ni->ni_ic->ic_softc;
3076 int ret;
3077
3078 RUM_LOCK(sc);
3079 /* prevent management frames from being sent if we're not ready */
3080 if (!sc->sc_running) {
3081 ret = ENETDOWN;
3082 goto bad;
3083 }
3084 if (sc->tx_nfree < RUM_TX_MINFREE) {
3085 ret = EIO;
3086 goto bad;
3087 }
3088
3089 if (params == NULL) {
3090 /*
3091 * Legacy path; interpret frame contents to decide
3092 * precisely how to send the frame.
3093 */
3094 if ((ret = rum_tx_mgt(sc, m, ni)) != 0)
3095 goto bad;
3096 } else {
3097 /*
3098 * Caller supplied explicit parameters to use in
3099 * sending the frame.
3100 */
3101 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0)
3102 goto bad;
3103 }
3104 RUM_UNLOCK(sc);
3105
3106 return 0;
3107 bad:
3108 RUM_UNLOCK(sc);
3109 m_freem(m);
3110 return ret;
3111 }
3112
3113 static void
rum_ratectl_start(struct rum_softc * sc,struct ieee80211_node * ni)3114 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
3115 {
3116 struct ieee80211vap *vap = ni->ni_vap;
3117 struct rum_vap *rvp = RUM_VAP(vap);
3118
3119 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
3120 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
3121
3122 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3123 }
3124
3125 static void
rum_ratectl_timeout(void * arg)3126 rum_ratectl_timeout(void *arg)
3127 {
3128 struct rum_vap *rvp = arg;
3129 struct ieee80211vap *vap = &rvp->vap;
3130 struct ieee80211com *ic = vap->iv_ic;
3131
3132 ieee80211_runtask(ic, &rvp->ratectl_task);
3133 }
3134
3135 static void
rum_ratectl_task(void * arg,int pending)3136 rum_ratectl_task(void *arg, int pending)
3137 {
3138 struct rum_vap *rvp = arg;
3139 struct ieee80211vap *vap = &rvp->vap;
3140 struct rum_softc *sc = vap->iv_ic->ic_softc;
3141 struct ieee80211_ratectl_tx_stats *txs = &sc->sc_txs;
3142 int ok[3], fail;
3143
3144 RUM_LOCK(sc);
3145 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */
3146 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
3147
3148 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */
3149 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */
3150 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */
3151 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
3152
3153 txs->flags = IEEE80211_RATECTL_TX_STATS_RETRIES;
3154 txs->nframes = ok[0] + ok[1] + ok[2] + fail;
3155 txs->nsuccess = txs->nframes - fail;
3156 /* XXX at least */
3157 txs->nretries = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1);
3158
3159 if (txs->nframes != 0)
3160 ieee80211_ratectl_tx_update(vap, txs);
3161
3162 /* count TX retry-fail as Tx errors */
3163 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail);
3164
3165 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3166 RUM_UNLOCK(sc);
3167 }
3168
3169 static void
rum_scan_start(struct ieee80211com * ic)3170 rum_scan_start(struct ieee80211com *ic)
3171 {
3172 struct rum_softc *sc = ic->ic_softc;
3173
3174 RUM_LOCK(sc);
3175 rum_abort_tsf_sync(sc);
3176 rum_set_bssid(sc, ieee80211broadcastaddr);
3177 RUM_UNLOCK(sc);
3178
3179 }
3180
3181 static void
rum_scan_end(struct ieee80211com * ic)3182 rum_scan_end(struct ieee80211com *ic)
3183 {
3184 struct rum_softc *sc = ic->ic_softc;
3185
3186 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
3187 RUM_LOCK(sc);
3188 if (ic->ic_opmode != IEEE80211_M_AHDEMO)
3189 rum_enable_tsf_sync(sc);
3190 else
3191 rum_enable_tsf(sc);
3192 rum_set_bssid(sc, sc->sc_bssid);
3193 RUM_UNLOCK(sc);
3194 }
3195 }
3196
3197 static void
rum_set_channel(struct ieee80211com * ic)3198 rum_set_channel(struct ieee80211com *ic)
3199 {
3200 struct rum_softc *sc = ic->ic_softc;
3201
3202 RUM_LOCK(sc);
3203 rum_set_chan(sc, ic->ic_curchan);
3204 RUM_UNLOCK(sc);
3205 }
3206
3207 static void
rum_getradiocaps(struct ieee80211com * ic,int maxchans,int * nchans,struct ieee80211_channel chans[])3208 rum_getradiocaps(struct ieee80211com *ic,
3209 int maxchans, int *nchans, struct ieee80211_channel chans[])
3210 {
3211 struct rum_softc *sc = ic->ic_softc;
3212 uint8_t bands[IEEE80211_MODE_BYTES];
3213
3214 memset(bands, 0, sizeof(bands));
3215 setbit(bands, IEEE80211_MODE_11B);
3216 setbit(bands, IEEE80211_MODE_11G);
3217 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0);
3218
3219 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
3220 setbit(bands, IEEE80211_MODE_11A);
3221 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
3222 rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0);
3223 }
3224 }
3225
3226 static int
rum_get_rssi(struct rum_softc * sc,uint8_t raw)3227 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
3228 {
3229 struct ieee80211com *ic = &sc->sc_ic;
3230 int lna, agc, rssi;
3231
3232 lna = (raw >> 5) & 0x3;
3233 agc = raw & 0x1f;
3234
3235 if (lna == 0) {
3236 /*
3237 * No RSSI mapping
3238 *
3239 * NB: Since RSSI is relative to noise floor, -1 is
3240 * adequate for caller to know error happened.
3241 */
3242 return -1;
3243 }
3244
3245 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
3246
3247 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
3248 rssi += sc->rssi_2ghz_corr;
3249
3250 if (lna == 1)
3251 rssi -= 64;
3252 else if (lna == 2)
3253 rssi -= 74;
3254 else if (lna == 3)
3255 rssi -= 90;
3256 } else {
3257 rssi += sc->rssi_5ghz_corr;
3258
3259 if (!sc->ext_5ghz_lna && lna != 1)
3260 rssi += 4;
3261
3262 if (lna == 1)
3263 rssi -= 64;
3264 else if (lna == 2)
3265 rssi -= 86;
3266 else if (lna == 3)
3267 rssi -= 100;
3268 }
3269 return rssi;
3270 }
3271
3272 static int
rum_pause(struct rum_softc * sc,int timeout)3273 rum_pause(struct rum_softc *sc, int timeout)
3274 {
3275
3276 usb_pause_mtx(&sc->sc_mtx, timeout);
3277 return (0);
3278 }
3279
3280 static device_method_t rum_methods[] = {
3281 /* Device interface */
3282 DEVMETHOD(device_probe, rum_match),
3283 DEVMETHOD(device_attach, rum_attach),
3284 DEVMETHOD(device_detach, rum_detach),
3285 DEVMETHOD_END
3286 };
3287
3288 static driver_t rum_driver = {
3289 .name = "rum",
3290 .methods = rum_methods,
3291 .size = sizeof(struct rum_softc),
3292 };
3293
3294 DRIVER_MODULE(rum, uhub, rum_driver, NULL, NULL);
3295 MODULE_DEPEND(rum, wlan, 1, 1, 1);
3296 MODULE_DEPEND(rum, usb, 1, 1, 1);
3297 MODULE_VERSION(rum, 1);
3298 USB_PNP_HOST_INFO(rum_devs);
3299