?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Fallback Tx rate for MCS8 is MCS7
[ralink_drivers/rt2870_fbsd8.git] / rt2870.c
blobe924b656295a4eb1881fd98ff56bb5d7244fa532
1
2 /*-
3 * Copyright (c) 2009-2010 Alexander Egorenkov <egorenar@gmail.com>
4 * Copyright (c) 2009 Damien Bergamini <damien.bergamini@free.fr>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include "rt2870_softc.h"
20 #include "rt2870_reg.h"
21 #include "rt2870_eeprom.h"
22 #include "rt2870_ucode.h"
23 #include "rt2870_rxwi.h"
24 #include "rt2870_rxinfo.h"
25 #include "rt2870_txinfo.h"
26 #include "rt2870_txwi.h"
27 #include "rt2870_read_eeprom.h"
28 #include "rt2870_io.h"
29 #include "rt2870_rf.h"
30 #include "rt2870_led.h"
31 #include "rt2870_debug.h"
32
33 /*
34 * Defines and macros
35 */
36
37 #define USB_PRODUCT_LINKSYS4_WUSB600N 0x0071
38 #define USB_PRODUCT_DLINK2_DWA140 0x3c09
39 #define USB_PRODUCT_DLINK2_DWA160AREVB 0x3c11
40 #define USB_PRODUCT_ASUS_RT2770F 0x1742
41 #define USB_PRODUCT_RALINK_RT2770 0x2770
42
43 #define RT2870_USB_CONFIG_INDEX 0
44 #define RT2870_USB_IFACE_INDEX 0
45
46 #define RT2870_USB_REQ_MAC_READ_MULTI 0x07
47
48 /* packet length + Rx wireless info + Rx info */
49 #define RT2870_RX_DESC_SIZE \
50 (sizeof(uint32_t) + sizeof(struct rt2870_rxwi) + sizeof(struct rt2870_rxinfo))
51
52 /* Tx info + Tx wireless info + max padding */
53 #define RT2870_TX_DESC_SIZE \
54 (sizeof(struct rt2870_txinfo) + sizeof(struct rt2870_txwi) + 11)
55
56 #define RT2870_MAX_AGG_SIZE 3840
57
58 #define RT2870_USB_RX_BULK_BUFLEN (2048 * 12)
59
60 #define RT2870_NOISE_FLOOR -95
61
62 #define RT2870_AID2WCID(aid) ((aid) & 0xff)
63
64 #define RT2870_ACK_SIZE 14
65
66 #define IEEE80211_HAS_ADDR4(wh) \
67 (((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
68
69 #define RT2870_MS(_v, _f) (((_v) & _f) >> _f##_S)
70 #define RT2870_SM(_v, _f) (((_v) << _f##_S) & _f)
71
72 #define RT2870_USB_XFER_TIMEOUT 5000
73
74 #define RT2870_TX_WATCHDOG_TIMEOUT 5
75
76 /*
77 * Data structures and types
78 */
79
80 struct rt2870_cmd_argv_keyset
81 {
82 struct ieee80211_key key;
83 uint16_t associd;
84 };
85
86 struct rt2870_cmd_argv_keydelete
87 {
88 struct ieee80211_key key;
89 uint16_t associd;
90 };
91
92 /*
93 * Static function prototypes
94 */
95
96 static void rt2870_init_channels(struct rt2870_softc *sc);
97
98 static void rt2870_init_channels_ht40(struct rt2870_softc *sc);
99
100 static void rt2870_init_locked(void *priv);
101
102 static void rt2870_init(void *priv);
103
104 static int rt2870_init_bbp(struct rt2870_softc *sc);
105
106 static void rt2870_stop_locked(void *priv);
107
108 static void rt2870_stop(void *priv);
109
110 static void rt2870_start(struct ifnet *ifp);
111
112 static int rt2870_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
113
114 static struct ieee80211vap *rt2870_vap_create(struct ieee80211com *ic,
115 const char name[IFNAMSIZ], int unit, int opmode, int flags,
116 const uint8_t bssid[IEEE80211_ADDR_LEN],
117 const uint8_t mac[IEEE80211_ADDR_LEN]);
118
119 static void rt2870_vap_delete(struct ieee80211vap *vap);
120
121 static int rt2870_vap_reset(struct ieee80211vap *vap, u_long cmd);
122
123 static int rt2870_vap_newstate(struct ieee80211vap *vap,
124 enum ieee80211_state nstate, int arg);
125
126 static void rt2870_vap_key_update_begin(struct ieee80211vap *vap);
127
128 static void rt2870_vap_key_update_end(struct ieee80211vap *vap);
129
130 static int rt2870_vap_key_set(struct ieee80211vap *vap,
131 const struct ieee80211_key *k, const uint8_t mac[IEEE80211_ADDR_LEN]);
132
133 static int rt2870_vap_key_delete(struct ieee80211vap *vap,
134 const struct ieee80211_key *k);
135
136 static void rt2870_vap_update_beacon(struct ieee80211vap *vap, int what);
137
138 static struct ieee80211_node *rt2870_node_alloc(struct ieee80211vap *vap,
139 const uint8_t mac[IEEE80211_ADDR_LEN]);
140
141 static int rt2870_setregdomain(struct ieee80211com *ic,
142 struct ieee80211_regdomain *reg,
143 int nchans, struct ieee80211_channel chans[]);
144
145 static void rt2870_getradiocaps(struct ieee80211com *ic,
146 int maxchans, int *nchans, struct ieee80211_channel chans[]);
147
148 static void rt2870_scan_start(struct ieee80211com *ic);
149
150 static void rt2870_scan_end(struct ieee80211com *ic);
151
152 static void rt2870_set_channel(struct ieee80211com *ic);
153
154 static void rt2870_newassoc(struct ieee80211_node *ni, int isnew);
155
156 static void rt2870_updateslot(struct ifnet *ifp);
157
158 static void rt2870_update_promisc(struct ifnet *ifp);
159
160 static void rt2870_update_mcast(struct ifnet *ifp);
161
162 static int rt2870_wme_update(struct ieee80211com *ic);
163
164 static int rt2870_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
165 const struct ieee80211_bpf_params *params);
166
167 static int rt2870_recv_action(struct ieee80211_node *ni,
168 const struct ieee80211_frame *wh,
169 const uint8_t *frm, const uint8_t *efrm);
170
171 static int rt2870_send_action(struct ieee80211_node *ni,
172 int cat, int act, void *sa);
173
174 static void rt2870_amrr_update_iter_func(void *arg, struct ieee80211_node *ni);
175
176 static void rt2870_periodic(void *arg);
177
178 static void rt2870_tx_watchdog(void *arg);
179
180 static int rt2870_do_async(struct rt2870_softc *sc,
181 void (*cb)(struct rt2870_softc *sc, void *arg),
182 void *arg, int len);
183
184 static void rt2870_updateslot_cb(struct rt2870_softc *sc, void *arg);
185
186 static void rt2870_wme_update_cb(struct rt2870_softc *sc, void *arg);
187
188 static void rt2870_vap_key_set_cb(struct rt2870_softc *sc, void *arg);
189
190 static void rt2870_vap_key_delete_cb(struct rt2870_softc *sc, void *arg);
191
192 static void rt2870_vap_update_beacon_cb(struct rt2870_softc *sc, void *arg);
193
194 static void rt2870_asic_set_bssid(struct rt2870_softc *sc,
195 const uint8_t *bssid);
196
197 static void rt2870_asic_set_macaddr(struct rt2870_softc *sc,
198 const uint8_t *addr);
199
200 static void rt2870_asic_enable_tsf_sync(struct rt2870_softc *sc);
201
202 static void rt2870_asic_disable_tsf_sync(struct rt2870_softc *sc);
203
204 static void rt2870_asic_enable_mrr(struct rt2870_softc *sc);
205
206 static void rt2870_asic_set_txpreamble(struct rt2870_softc *sc);
207
208 static void rt2870_asic_set_basicrates(struct rt2870_softc *sc);
209
210 static void rt2870_asic_update_rtsthreshold(struct rt2870_softc *sc);
211
212 static void rt2870_asic_update_txpower(struct rt2870_softc *sc);
213
214 static void rt2870_asic_update_promisc(struct rt2870_softc *sc);
215
216 static void rt2870_asic_updateprot(struct rt2870_softc *sc);
217
218 static void rt2870_asic_updateslot(struct rt2870_softc *sc);
219
220 static void rt2870_asic_wme_update(struct rt2870_softc *sc);
221
222 static int rt2870_asic_update_beacon(struct rt2870_softc *sc,
223 struct ieee80211vap *vap);
224
225 static void rt2870_asic_clear_keytables(struct rt2870_softc *sc);
226
227 static uint8_t rt2870_rxrate(struct rt2870_rxwi *rxwi);
228
229 static uint8_t rt2870_maxrssi_rxpath(struct rt2870_softc *sc,
230 const struct rt2870_rxwi *rxwi);
231
232 static int8_t rt2870_rssi2dbm(struct rt2870_softc *sc,
233 uint8_t rssi, uint8_t rxpath);
234
235 static uint8_t rt2870_rate2mcs(uint8_t rate);
236
237 static void rt2870_rx_frame(struct rt2870_softc *sc,
238 uint8_t *buf, uint32_t dmalen);
239
240 static int rt2870_tx_mgmt(struct rt2870_softc *sc,
241 struct mbuf *m, struct ieee80211_node *ni, int qid);
242
243 static int rt2870_tx_data(struct rt2870_softc *sc,
244 struct mbuf *m, struct ieee80211_node *ni, int qid);
245
246 static int rt2870_tx_raw(struct rt2870_softc *sc,
247 struct mbuf *m, struct ieee80211_node *ni,
248 const struct ieee80211_bpf_params *params);
249
250 static void rt2870_rx_intr(struct usb_xfer *xfer, usb_error_t error);
251
252 static void rt2870_tx_intr(struct usb_xfer *xfer, usb_error_t error);
253
254 static void rt2870_rx_done_task(void *context, int pending);
255
256 static void rt2870_tx_done_task(void *context, int pending);
257
258 static void rt2870_periodic_task(void *context, int pending);
259
260 static void rt2870_cmd_task(void *context, int pending);
261
262 static int rt2870_rx_eof(struct rt2870_softc *sc, int limit);
263
264 static void rt2870_tx_eof(struct rt2870_softc *sc,
265 struct rt2870_softc_tx_ring *ring);
266
267 static void rt2870_update_stats(struct rt2870_softc *sc);
268
269 static void rt2870_bbp_tuning(struct rt2870_softc *sc);
270
271 static void rt2870_watchdog(struct rt2870_softc *sc);
272
273 static void rt2870_drain_fifo_stats(struct rt2870_softc *sc);
274
275 static void rt2870_update_raw_counters(struct rt2870_softc *sc);
276
277 static int rt2870_txrx_enable(struct rt2870_softc *sc);
278
279 static int rt2870_alloc_rx_ring(struct rt2870_softc *sc,
280 struct rt2870_softc_rx_ring *ring);
281
282 static void rt2870_reset_rx_ring(struct rt2870_softc *sc,
283 struct rt2870_softc_rx_ring *ring);
284
285 static void rt2870_free_rx_ring(struct rt2870_softc *sc,
286 struct rt2870_softc_rx_ring *ring);
287
288 static int rt2870_alloc_tx_ring(struct rt2870_softc *sc,
289 struct rt2870_softc_tx_ring *ring, int qid);
290
291 static void rt2870_reset_tx_ring(struct rt2870_softc *sc,
292 struct rt2870_softc_tx_ring *ring);
293
294 static void rt2870_free_tx_ring(struct rt2870_softc *sc,
295 struct rt2870_softc_tx_ring *ring);
296
297 static void rt2870_reset_cmd_ring(struct rt2870_softc *sc,
298 struct rt2870_softc_cmd_ring *ring);
299
300 static void rt2870_sysctl_attach(struct rt2870_softc *sc);
301
302 /*
303 * Static variables
304 */
305
306 static const struct usb_device_id rt2870_usb_devid[] =
307 {
308 { USB_VP(USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_WUSB600N) }, /* Linksys WUSB600N */
309 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA140) }, /* D-Link DWA-140 */
310 { USB_VP(USB_VENDOR_DLINK2, USB_PRODUCT_DLINK2_DWA160AREVB) }, /* D-Link DWA-160A Rev. B */
311 { USB_VP(USB_VENDOR_ASUS, USB_PRODUCT_ASUS_RT2770F) }, /* Asus RT2770F */
312 { USB_VP(USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2770) }, /* Ralink RT2770 */
313 };
314
315 static const struct usb_config rt2870_usb_config[RT2870_SOFTC_USB_XFER_COUNT] =
316 {
317 {
318 .type = UE_BULK,
319 .endpoint = 0x01,
320 .direction = UE_DIR_IN,
321 .bufsize = RT2870_USB_RX_BULK_BUFLEN,
322 .flags = { .ext_buffer = 1, .pipe_bof = 1, .short_xfer_ok = 1, },
323 .callback = rt2870_rx_intr,
324 },
325 {
326 .type = UE_BULK,
327 .endpoint = 0x01,
328 .direction = UE_DIR_OUT,
329 .bufsize = (RT2870_TX_DESC_SIZE + MJUMPAGESIZE),
330 .flags = { .ext_buffer = 1, .pipe_bof = 1, .force_short_xfer = 1, },
331 .callback = rt2870_tx_intr,
332 .timeout = RT2870_USB_XFER_TIMEOUT,
333 },
334 {
335 .type = UE_BULK,
336 .endpoint = 0x02,
337 .direction = UE_DIR_OUT,
338 .bufsize = (RT2870_TX_DESC_SIZE + MJUMPAGESIZE),
339 .flags = { .ext_buffer = 1, .pipe_bof = 1, .force_short_xfer = 1, },
340 .callback = rt2870_tx_intr,
341 .timeout = RT2870_USB_XFER_TIMEOUT,
342 },
343 {
344 .type = UE_BULK,
345 .endpoint = 0x03,
346 .direction = UE_DIR_OUT,
347 .bufsize = (RT2870_TX_DESC_SIZE + MJUMPAGESIZE),
348 .flags = { .ext_buffer = 1, .pipe_bof = 1, .force_short_xfer = 1, },
349 .callback = rt2870_tx_intr,
350 .timeout = RT2870_USB_XFER_TIMEOUT,
351 },
352 {
353 .type = UE_BULK,
354 .endpoint = 0x04,
355 .direction = UE_DIR_OUT,
356 .bufsize = (RT2870_TX_DESC_SIZE + MJUMPAGESIZE),
357 .flags = { .ext_buffer = 1, .pipe_bof = 1, .force_short_xfer = 1, },
358 .callback = rt2870_tx_intr,
359 .timeout = RT2870_USB_XFER_TIMEOUT,
360 },
361 {
362 .type = UE_BULK,
363 .endpoint = 0x05,
364 .direction = UE_DIR_OUT,
365 .bufsize = (RT2870_TX_DESC_SIZE + MJUMPAGESIZE),
366 .flags = { .ext_buffer = 1, .pipe_bof = 1, .force_short_xfer = 1, },
367 .callback = rt2870_tx_intr,
368 .timeout = RT2870_USB_XFER_TIMEOUT,
369 },
370 {
371 .type = UE_BULK,
372 .endpoint = 0x06,
373 .direction = UE_DIR_OUT,
374 .bufsize = (RT2870_TX_DESC_SIZE + MJUMPAGESIZE),
375 .flags = { .ext_buffer = 1, .pipe_bof = 1, .force_short_xfer = 1, },
376 .callback = rt2870_tx_intr,
377 .timeout = RT2870_USB_XFER_TIMEOUT,
378 },
379 };
380
381 static const struct
382 {
383 uint32_t reg;
384 uint32_t val;
385 } rt2870_def_mac[] =
386 {
387 { RT2870_REG_PBF_BCN_OFFSET0, 0xf8f0e8e0 },
388 { RT2870_REG_PBF_BCN_OFFSET1, 0x6f77d0c8 },
389 { RT2870_REG_LEGACY_BASIC_RATE, 0x0000013f },
390 { RT2870_REG_HT_BASIC_RATE, 0x00008003 },
391 { RT2870_REG_SYS_CTRL, 0x00000000 },
392 { RT2870_REG_RX_FILTER_CFG, 0x00017f97 },
393 { RT2870_REG_BKOFF_SLOT_CFG, 0x00000209 },
394 { RT2870_REG_TX_SW_CFG0, 0x00000000 },
395 { RT2870_REG_TX_SW_CFG1, 0x00080606 },
396 { RT2870_REG_TX_LINK_CFG, 0x00001020 },
397 { RT2870_REG_TX_TIMEOUT_CFG, 0x000a2090 },
398 { RT2870_REG_MAX_LEN_CFG, (1 << 12) | RT2870_MAX_AGG_SIZE },
399 { RT2870_REG_LED_CFG, 0x7f031e46 },
400 { RT2870_REG_PBF_MAX_PCNT, 0x1f3fbf9f },
401 { RT2870_REG_TX_RTY_CFG, 0x47d01f0f },
402 { RT2870_REG_AUTO_RSP_CFG, 0x00000013 },
403 { RT2870_REG_TX_CCK_PROT_CFG, 0x05740003 },
404 { RT2870_REG_TX_OFDM_PROT_CFG, 0x05740003 },
405 { RT2870_REG_PBF_CFG, 0x00f40006 },
406 { RT2870_REG_TX_MM40_PROT_CFG, 0x03f44084 },
407 { RT2870_REG_SCHDMA_WPDMA_GLO_CFG, 0x00000030 },
408 { RT2870_REG_TX_GF20_PROT_CFG, 0x01744004 },
409 { RT2870_REG_TX_GF40_PROT_CFG, 0x03f44084 },
410 { RT2870_REG_TX_MM20_PROT_CFG, 0x01744004 },
411 { RT2870_REG_TX_TXOP_CTRL_CFG, 0x0000583f },
412 { RT2870_REG_TX_RTS_CFG, 0x00092b20 },
413 { RT2870_REG_TX_EXP_ACK_TIME, 0x002400ca },
414 { RT2870_REG_HCCAPSMP_TXOP_HLDR_ET, 0x00000002 },
415 { RT2870_REG_XIFS_TIME_CFG, 0x33a41010 },
416 { RT2870_REG_PWR_PIN_CFG, 0x00000003 },
417 { RT2870_REG_SCHDMA_WMM_AIFSN_CFG, 0x00002273 },
418 { RT2870_REG_SCHDMA_WMM_CWMIN_CFG, 0x00002344 },
419 { RT2870_REG_SCHDMA_WMM_CWMAX_CFG, 0x000034aa },
420 };
421
422 #define RT2870_DEF_MAC_SIZE (sizeof(rt2870_def_mac) / sizeof(rt2870_def_mac[0]))
423
424 static const struct
425 {
426 uint8_t reg;
427 uint8_t val;
428 } rt2870_def_bbp[] =
429 {
430 { 65, 0x2c },
431 { 66, 0x38 },
432 { 69, 0x12 },
433 { 70, 0x0a },
434 { 73, 0x10 },
435 { 81, 0x37 },
436 { 82, 0x62 },
437 { 83, 0x6a },
438 { 84, 0x99 },
439 { 86, 0x00 },
440 { 91, 0x04 },
441 { 92, 0x00 },
442 { 103, 0x00 },
443 { 105, 0x05 },
444 { 106, 0x35 },
445 };
446
447 #define RT2870_DEF_BBP_SIZE (sizeof(rt2870_def_bbp) / sizeof(rt2870_def_bbp[0]))
448
449 SYSCTL_NODE(_hw, OID_AUTO, rt2870, CTLFLAG_RD, 0, "RT2870 driver parameters");
450
451 #ifdef RT2870_DEBUG
452 static int rt2870_debug = 0;
453 SYSCTL_INT(_hw_rt2870, OID_AUTO, debug, CTLFLAG_RW, &rt2870_debug, 0, "rt2870 debug level");
454 TUNABLE_INT("hw.rt2870.debug", &rt2870_debug);
455 #endif
456
457 /*
458 * rt2870_probe
459 */
460 static int rt2870_probe(device_t dev)
461 {
462 struct usb_attach_arg *uaa;
463
464 uaa = device_get_ivars(dev);
465
466 if (uaa->usb_mode != USB_MODE_HOST)
467 return ENXIO;
468
469 if (uaa->info.bConfigIndex != RT2870_USB_CONFIG_INDEX)
470 return ENXIO;
471
472 if (uaa->info.bIfaceIndex != RT2870_USB_IFACE_INDEX)
473 return ENXIO;
474
475 return (usbd_lookup_id_by_uaa(rt2870_usb_devid,
476 sizeof(rt2870_usb_devid), uaa));
477 }
478
479 /*
480 * rt2870_attach
481 */
482 static int rt2870_attach(device_t dev)
483 {
484 struct rt2870_softc *sc;
485 struct usb_attach_arg *uaa;
486 usb_error_t usb_error;
487 struct ieee80211com *ic;
488 struct ifnet *ifp;
489 struct usb_interface *iface;
490 struct usb_interface_descriptor *iface_desc;
491 uint8_t iface_index;
492 int error, ntries, i;
493
494 sc = device_get_softc(dev);
495 uaa = device_get_ivars(dev);
496
497 sc->dev = dev;
498 sc->usb_dev = uaa->device;
499
500 device_set_usb_desc(dev);
501
502 #ifdef RT2870_DEBUG
503 sc->debug = rt2870_debug;
504
505 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
506 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
507 "debug", CTLFLAG_RW, &sc->debug, 0, "rt2870 debug level");
508 #endif
509
510 RT2870_DPRINTF(sc, RT2870_DEBUG_ANY,
511 "%s: attaching\n",
512 device_get_nameunit(sc->dev));
513
514 iface_index = RT2870_USB_IFACE_INDEX;
515
516 iface = usbd_get_iface(uaa->device, iface_index);
517 if (iface == NULL)
518 {
519 printf("%s: could not get USB interface\n",
520 device_get_nameunit(sc->dev));
521 return ENXIO;
522 }
523
524 iface_desc = usbd_get_interface_descriptor(iface);
525 if (iface_desc == NULL)
526 {
527 printf("%s: could not get USB interface descriptor\n",
528 device_get_nameunit(sc->dev));
529 return ENXIO;
530 }
531
532 sc->usb_endpoints = iface_desc->bNumEndpoints;
533 if ((sc->usb_endpoints != RT2870_SOFTC_USB_XFER_COUNT) &&
534 (sc->usb_endpoints != RT2870_SOFTC_USB_XFER_COUNT - 2))
535 {
536 printf("%s: wrong number of USB endpoints=%d\n",
537 device_get_nameunit(sc->dev), sc->usb_endpoints);
538 return ENXIO;
539 }
540
541 mtx_init(&sc->lock, device_get_nameunit(dev),
542 MTX_NETWORK_LOCK, MTX_DEF);
543
544 usb_error = usbd_transfer_setup(uaa->device, &iface_index,
545 sc->usb_xfer, rt2870_usb_config, sc->usb_endpoints,
546 sc, &sc->lock);
547 if (usb_error != 0)
548 {
549 printf("%s: could not allocate USB transfers: error=%s\n",
550 device_get_nameunit(sc->dev), usbd_errstr(usb_error));
551 error = ENXIO;
552 goto fail;
553 }
554
555 RT2870_SOFTC_LOCK(sc);
556
557 for (ntries = 0; ntries < 100; ntries++)
558 {
559 sc->mac_rev = rt2870_io_mac_read(sc, RT2870_REG_MAC_CSR0);
560 if (sc->mac_rev != 0x00000000 && sc->mac_rev != 0xffffffff)
561 break;
562
563 DELAY(10);
564 }
565
566 if (ntries == 100)
567 {
568 printf("%s: timeout waiting for NIC to initialize\n",
569 device_get_nameunit(sc->dev));
570 error = ENXIO;
571 goto fail;
572 }
573
574 rt2870_read_eeprom(sc);
575
576 RT2870_SOFTC_UNLOCK(sc);
577
578 printf("%s: MAC/BBP RT2870 (rev 0x%08x), RF %s\n",
579 device_get_nameunit(sc->dev), sc->mac_rev,
580 rt2870_rf_name(sc->rf_rev));
581
582 /* allocate Tx and Rx rings */
583
584 for (i = 0; i < sc->usb_endpoints - 1; i++)
585 {
586 error = rt2870_alloc_tx_ring(sc, &sc->tx_ring[i], i);
587 if (error != 0)
588 {
589 printf("%s: could not allocate Tx ring #%d\n",
590 device_get_nameunit(sc->dev), i);
591 goto fail;
592 }
593 }
594
595 if (sc->usb_endpoints == RT2870_SOFTC_USB_XFER_COUNT)
596 sc->tx_ring_mgtqid = 5;
597 else
598 sc->tx_ring_mgtqid = 0;
599
600 error = rt2870_alloc_rx_ring(sc, &sc->rx_ring);
601 if (error != 0)
602 {
603 printf("%s: could not allocate Rx ring\n",
604 device_get_nameunit(sc->dev));
605 goto fail;
606 }
607
608 callout_init(&sc->periodic_ch, 0);
609 callout_init_mtx(&sc->tx_watchdog_ch, &sc->lock, 0);
610
611 ifp = sc->ifp = if_alloc(IFT_IEEE80211);
612 if (ifp == NULL)
613 {
614 printf("%s: could not if_alloc()\n",
615 device_get_nameunit(sc->dev));
616 error = ENOMEM;
617 goto fail;
618 }
619
620 ifp->if_softc = sc;
621
622 if_initname(ifp, "rt2870", device_get_unit(sc->dev));
623
624 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
625
626 ifp->if_init = rt2870_init;
627 ifp->if_ioctl = rt2870_ioctl;
628 ifp->if_start = rt2870_start;
629
630 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
631 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
632 IFQ_SET_READY(&ifp->if_snd);
633
634 ic = ifp->if_l2com;
635
636 ic->ic_ifp = ifp;
637
638 ic->ic_phytype = IEEE80211_T_HT;
639 ic->ic_opmode = IEEE80211_M_STA;
640
641 ic->ic_caps = IEEE80211_C_MONITOR |
642 IEEE80211_C_IBSS |
643 IEEE80211_C_STA |
644 IEEE80211_C_AHDEMO |
645 IEEE80211_C_HOSTAP |
646 IEEE80211_C_WDS |
647 IEEE80211_C_MBSS |
648 /* IEEE80211_C_BGSCAN | */
649 IEEE80211_C_TXPMGT |
650 IEEE80211_C_SHPREAMBLE |
651 IEEE80211_C_SHSLOT |
652 IEEE80211_C_TXFRAG |
653 IEEE80211_C_BURST |
654 IEEE80211_C_WME |
655 IEEE80211_C_WPA;
656
657 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP |
658 IEEE80211_CRYPTO_TKIP |
659 IEEE80211_CRYPTO_TKIPMIC |
660 IEEE80211_CRYPTO_AES_CCM;
661
662 ic->ic_htcaps = IEEE80211_HTC_HT |
663 IEEE80211_HTC_AMSDU | /* A-MSDU Tx */
664 IEEE80211_HTC_AMPDU | /* A-MPDU Tx */
665 IEEE80211_HTCAP_MAXAMSDU_3839 | /* max. A-MSDU Rx length */
666 IEEE80211_HTCAP_CHWIDTH40 | /* HT 40MHz channel width */
667 IEEE80211_HTCAP_GREENFIELD | /* HT greenfield */
668 IEEE80211_HTCAP_SHORTGI20 | /* HT 20MHz short GI */
669 IEEE80211_HTCAP_SHORTGI40 | /* HT 40MHz short GI */
670 IEEE80211_HTCAP_DSSSCCK40; /* HT 40MHz DSSS/CCK modulation */
671
672 /* spatial streams */
673
674 if (sc->nrxpath == 2)
675 ic->ic_htcaps |= IEEE80211_HTCAP_RXSTBC_2STREAM;
676 else if (sc->nrxpath == 3)
677 ic->ic_htcaps |= IEEE80211_HTCAP_RXSTBC_3STREAM;
678 else
679 ic->ic_htcaps |= IEEE80211_HTCAP_RXSTBC_1STREAM;
680
681 if (sc->ntxpath > 1)
682 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC;
683
684 /* delayed BA */
685
686 if (sc->mac_rev != 0x28600100)
687 ic->ic_htcaps |= IEEE80211_HTCAP_DELBA;
688
689 /* init channels */
690
691 ic->ic_nchans = 0;
692
693 rt2870_init_channels(sc);
694
695 rt2870_init_channels_ht40(sc);
696
697 ieee80211_ifattach(ic, sc->mac_addr);
698
699 ic->ic_vap_create = rt2870_vap_create;
700 ic->ic_vap_delete = rt2870_vap_delete;
701
702 ic->ic_node_alloc = rt2870_node_alloc;
703 ic->ic_setregdomain = rt2870_setregdomain;
704 ic->ic_getradiocaps = rt2870_getradiocaps;
705 ic->ic_scan_start = rt2870_scan_start;
706 ic->ic_scan_end = rt2870_scan_end;
707 ic->ic_set_channel = rt2870_set_channel;
708 ic->ic_newassoc = rt2870_newassoc;
709 ic->ic_updateslot = rt2870_updateslot;
710 ic->ic_update_promisc = rt2870_update_promisc;
711 ic->ic_update_mcast = rt2870_update_mcast;
712 ic->ic_wme.wme_update = rt2870_wme_update;
713 ic->ic_raw_xmit = rt2870_raw_xmit;
714
715 sc->recv_action = ic->ic_recv_action;
716 ic->ic_recv_action = rt2870_recv_action;
717
718 sc->send_action = ic->ic_send_action;
719 ic->ic_send_action = rt2870_send_action;
720
721 /* hardware requires padding between 802.11 frame header and body */
722
723 ic->ic_flags |= IEEE80211_F_DATAPAD | IEEE80211_F_DOTH;
724
725 ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
726
727 ieee80211_radiotap_attach(ic,
728 &sc->txtap.ihdr, sizeof(sc->txtap),
729 RT2870_SOFTC_TX_RADIOTAP_PRESENT,
730 &sc->rxtap.ihdr, sizeof(sc->rxtap),
731 RT2870_SOFTC_RX_RADIOTAP_PRESENT);
732
733 /* init task queue */
734
735 TASK_INIT(&sc->rx_done_task, 0, rt2870_rx_done_task, sc);
736 TASK_INIT(&sc->tx_done_task, 0, rt2870_tx_done_task, sc);
737 TASK_INIT(&sc->periodic_task, 0, rt2870_periodic_task, sc);
738 TASK_INIT(&sc->cmd_task, 0, rt2870_cmd_task, sc);
739
740 sc->rx_process_limit = 100;
741
742 sc->taskqueue = taskqueue_create("rt2870_taskq", M_NOWAIT,
743 taskqueue_thread_enqueue, &sc->taskqueue);
744
745 taskqueue_start_threads(&sc->taskqueue, 1, PI_NET, "%s taskq",
746 device_get_nameunit(sc->dev));
747
748 rt2870_sysctl_attach(sc);
749
750 if (bootverbose)
751 ieee80211_announce(ic);
752
753 return 0;
754
755 fail:
756
757 /* stop all USB transfers */
758
759 usbd_transfer_unsetup(sc->usb_xfer, sc->usb_endpoints);
760
761 /* free Tx and Rx rings */
762
763 for (i = 0; i < sc->usb_endpoints - 1; i++)
764 rt2870_free_tx_ring(sc, &sc->tx_ring[i]);
765
766 rt2870_free_rx_ring(sc, &sc->rx_ring);
767
768 mtx_destroy(&sc->lock);
769
770 return error;
771 }
772
773 /*
774 * rt2870_detach
775 */
776 static int rt2870_detach(device_t dev)
777 {
778 struct rt2870_softc *sc;
779 struct ieee80211com *ic;
780 struct ifnet *ifp;
781 int i;
782
783 if (!device_is_attached(dev))
784 return 0;
785
786 sc = device_get_softc(dev);
787 ifp = sc->ifp;
788 ic = ifp->if_l2com;
789
790 RT2870_DPRINTF(sc, RT2870_DEBUG_ANY,
791 "%s: detaching\n",
792 device_get_nameunit(sc->dev));
793
794 RT2870_SOFTC_LOCK(sc);
795
796 sc->tx_timer = 0;
797
798 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
799
800 callout_stop(&sc->periodic_ch);
801 callout_stop(&sc->tx_watchdog_ch);
802
803 RT2870_SOFTC_UNLOCK(sc);
804
805 taskqueue_block(sc->taskqueue);
806
807 taskqueue_drain(sc->taskqueue, &sc->rx_done_task);
808 taskqueue_drain(sc->taskqueue, &sc->tx_done_task);
809 taskqueue_drain(sc->taskqueue, &sc->periodic_task);
810 taskqueue_drain(sc->taskqueue, &sc->cmd_task);
811
812 /* stop all USB transfers */
813
814 usbd_transfer_unsetup(sc->usb_xfer, sc->usb_endpoints);
815
816 RT2870_SOFTC_LOCK(sc);
817
818 /* free Tx and Rx rings */
819
820 for (i = 0; i < sc->usb_endpoints - 1; i++)
821 rt2870_free_tx_ring(sc, &sc->tx_ring[i]);
822
823 rt2870_free_rx_ring(sc, &sc->rx_ring);
824
825 RT2870_SOFTC_UNLOCK(sc);
826
827 ieee80211_ifdetach(ic);
828
829 if_free(ifp);
830
831 taskqueue_free(sc->taskqueue);
832
833 mtx_destroy(&sc->lock);
834
835 return 0;
836 }
837
838 /*
839 * rt2870_init_channels
840 */
841 static void rt2870_init_channels(struct rt2870_softc *sc)
842 {
843 struct ifnet *ifp;
844 struct ieee80211com *ic;
845 struct ieee80211_channel *c;
846 int i, flags;
847
848 ifp = sc->ifp;
849 ic = ifp->if_l2com;
850
851 /* set supported channels for 2GHz band */
852
853 for (i = 1; i <= 14; i++)
854 {
855 c = &ic->ic_channels[ic->ic_nchans++];
856 flags = IEEE80211_CHAN_B;
857
858 c->ic_freq = ieee80211_ieee2mhz(i, flags);
859 c->ic_ieee = i;
860 c->ic_flags = flags;
861
862 c = &ic->ic_channels[ic->ic_nchans++];
863 flags = IEEE80211_CHAN_B | IEEE80211_CHAN_HT20;
864
865 c->ic_freq = ieee80211_ieee2mhz(i, flags);
866 c->ic_ieee = i;
867 c->ic_flags = flags;
868
869 c = &ic->ic_channels[ic->ic_nchans++];
870 flags = IEEE80211_CHAN_G;
871
872 c->ic_freq = ieee80211_ieee2mhz(i, flags);
873 c->ic_ieee = i;
874 c->ic_flags = flags;
875
876 c = &ic->ic_channels[ic->ic_nchans++];
877 flags = IEEE80211_CHAN_G | IEEE80211_CHAN_HT20;
878
879 c->ic_freq = ieee80211_ieee2mhz(i, flags);
880 c->ic_ieee = i;
881 c->ic_flags = flags;
882 }
883
884 /* set supported channels for 5GHz band */
885
886 if (sc->rf_rev == RT2870_EEPROM_RF_2850 ||
887 sc->rf_rev == RT2870_EEPROM_RF_2750)
888 {
889 for (i = 36; i <= 64; i += 4)
890 {
891 c = &ic->ic_channels[ic->ic_nchans++];
892 flags = IEEE80211_CHAN_A;
893
894 c->ic_freq = ieee80211_ieee2mhz(i, flags);
895 c->ic_ieee = i;
896 c->ic_flags = flags;
897
898 c = &ic->ic_channels[ic->ic_nchans++];
899 flags = IEEE80211_CHAN_A | IEEE80211_CHAN_HT20;
900
901 c->ic_freq = ieee80211_ieee2mhz(i, flags);
902 c->ic_ieee = i;
903 c->ic_flags = flags;
904 }
905
906 for (i = 100; i <= 140; i += 4)
907 {
908 c = &ic->ic_channels[ic->ic_nchans++];
909 flags = IEEE80211_CHAN_A;
910
911 c->ic_freq = ieee80211_ieee2mhz(i, flags);
912 c->ic_ieee = i;
913 c->ic_flags = flags;
914
915 c = &ic->ic_channels[ic->ic_nchans++];
916 flags = IEEE80211_CHAN_A | IEEE80211_CHAN_HT20;
917
918 c->ic_freq = ieee80211_ieee2mhz(i, flags);
919 c->ic_ieee = i;
920 c->ic_flags = flags;
921 }
922
923 for (i = 149; i <= 165; i += 4)
924 {
925 c = &ic->ic_channels[ic->ic_nchans++];
926 flags = IEEE80211_CHAN_A;
927
928 c->ic_freq = ieee80211_ieee2mhz(i, flags);
929 c->ic_ieee = i;
930 c->ic_flags = flags;
931
932 c = &ic->ic_channels[ic->ic_nchans++];
933 flags = IEEE80211_CHAN_A | IEEE80211_CHAN_HT20;
934
935 c->ic_freq = ieee80211_ieee2mhz(i, flags);
936 c->ic_ieee = i;
937 c->ic_flags = flags;
938 }
939 }
940 }
941
942 /*
943 * rt2870_init_channels_ht40
944 */
945 static void rt2870_init_channels_ht40(struct rt2870_softc *sc)
946 {
947 struct ifnet *ifp;
948 struct ieee80211com *ic;
949 struct ieee80211_channel *c, *cent, *ext;
950 int i, flags;
951
952 ifp = sc->ifp;
953 ic = ifp->if_l2com;
954
955 /* set supported channels for 2GHz band */
956
957 for (i = 1; i <= 14; i++)
958 {
959 flags = IEEE80211_CHAN_G | IEEE80211_CHAN_HT40;
960
961 /* find the center channel */
962
963 cent = ieee80211_find_channel_byieee(ic, i,
964 flags & ~IEEE80211_CHAN_HT);
965 if (cent == NULL)
966 {
967 printf("%s: skip channel %d, could not find center channel\n",
968 device_get_nameunit(sc->dev), i);
969 continue;
970 }
971
972 /* find the extension channel */
973
974 ext = ieee80211_find_channel(ic, cent->ic_freq + 20,
975 flags & ~IEEE80211_CHAN_HT);
976 if (ext == NULL)
977 {
978 printf("%s: skip channel %d, could not find extension channel\n",
979 device_get_nameunit(sc->dev), i);
980 continue;
981 }
982
983 c = &ic->ic_channels[ic->ic_nchans++];
984
985 *c = *cent;
986 c->ic_extieee = ext->ic_ieee;
987 c->ic_flags &= ~IEEE80211_CHAN_HT;
988 c->ic_flags |= IEEE80211_CHAN_HT40U;
989
990 c = &ic->ic_channels[ic->ic_nchans++];
991
992 *c = *ext;
993 c->ic_extieee = cent->ic_ieee;
994 c->ic_flags &= ~IEEE80211_CHAN_HT;
995 c->ic_flags |= IEEE80211_CHAN_HT40D;
996 }
997
998 /* set supported channels for 5GHz band */
999
1000 if (sc->rf_rev == RT2870_EEPROM_RF_2850 ||
1001 sc->rf_rev == RT2870_EEPROM_RF_2750)
1002 {
1003 for (i = 36; i <= 64; i += 4)
1004 {
1005 flags = IEEE80211_CHAN_A | IEEE80211_CHAN_HT40;
1006
1007 /* find the center channel */
1008
1009 cent = ieee80211_find_channel_byieee(ic, i,
1010 flags & ~IEEE80211_CHAN_HT);
1011 if (cent == NULL)
1012 {
1013 printf("%s: skip channel %d, could not find center channel\n",
1014 device_get_nameunit(sc->dev), i);
1015 continue;
1016 }
1017
1018 /* find the extension channel */
1019
1020 ext = ieee80211_find_channel(ic, cent->ic_freq + 20,
1021 flags & ~IEEE80211_CHAN_HT);
1022 if (ext == NULL)
1023 {
1024 printf("%s: skip channel %d, could not find extension channel\n",
1025 device_get_nameunit(sc->dev), i);
1026 continue;
1027 }
1028
1029 c = &ic->ic_channels[ic->ic_nchans++];
1030
1031 *c = *cent;
1032 c->ic_extieee = ext->ic_ieee;
1033 c->ic_flags &= ~IEEE80211_CHAN_HT;
1034 c->ic_flags |= IEEE80211_CHAN_HT40U;
1035
1036 c = &ic->ic_channels[ic->ic_nchans++];
1037
1038 *c = *ext;
1039 c->ic_extieee = cent->ic_ieee;
1040 c->ic_flags &= ~IEEE80211_CHAN_HT;
1041 c->ic_flags |= IEEE80211_CHAN_HT40D;
1042 }
1043
1044 for (i = 100; i <= 140; i += 4)
1045 {
1046 flags = IEEE80211_CHAN_A | IEEE80211_CHAN_HT40;
1047
1048 /* find the center channel */
1049
1050 cent = ieee80211_find_channel_byieee(ic, i,
1051 flags & ~IEEE80211_CHAN_HT);
1052 if (cent == NULL)
1053 {
1054 printf("%s: skip channel %d, could not find center channel\n",
1055 device_get_nameunit(sc->dev), i);
1056 continue;
1057 }
1058
1059 /* find the extension channel */
1060
1061 ext = ieee80211_find_channel(ic, cent->ic_freq + 20,
1062 flags & ~IEEE80211_CHAN_HT);
1063 if (ext == NULL)
1064 {
1065 printf("%s: skip channel %d, could not find extension channel\n",
1066 device_get_nameunit(sc->dev), i);
1067 continue;
1068 }
1069
1070 c = &ic->ic_channels[ic->ic_nchans++];
1071
1072 *c = *cent;
1073 c->ic_extieee = ext->ic_ieee;
1074 c->ic_flags &= ~IEEE80211_CHAN_HT;
1075 c->ic_flags |= IEEE80211_CHAN_HT40U;
1076
1077 c = &ic->ic_channels[ic->ic_nchans++];
1078
1079 *c = *ext;
1080 c->ic_extieee = cent->ic_ieee;
1081 c->ic_flags &= ~IEEE80211_CHAN_HT;
1082 c->ic_flags |= IEEE80211_CHAN_HT40D;
1083 }
1084
1085 for (i = 149; i <= 165; i += 4)
1086 {
1087 flags = IEEE80211_CHAN_A | IEEE80211_CHAN_HT40;
1088
1089 /* find the center channel */
1090
1091 cent = ieee80211_find_channel_byieee(ic, i,
1092 flags & ~IEEE80211_CHAN_HT);
1093 if (cent == NULL)
1094 {
1095 printf("%s: skip channel %d, could not find center channel\n",
1096 device_get_nameunit(sc->dev), i);
1097 continue;
1098 }
1099
1100 /* find the extension channel */
1101
1102 ext = ieee80211_find_channel(ic, cent->ic_freq + 20,
1103 flags & ~IEEE80211_CHAN_HT);
1104 if (ext == NULL)
1105 {
1106 printf("%s: skip channel %d, could not find extension channel\n",
1107 device_get_nameunit(sc->dev), i);
1108 continue;
1109 }
1110
1111 c = &ic->ic_channels[ic->ic_nchans++];
1112
1113 *c = *cent;
1114 c->ic_extieee = ext->ic_ieee;
1115 c->ic_flags &= ~IEEE80211_CHAN_HT;
1116 c->ic_flags |= IEEE80211_CHAN_HT40U;
1117
1118 c = &ic->ic_channels[ic->ic_nchans++];
1119
1120 *c = *ext;
1121 c->ic_extieee = cent->ic_ieee;
1122 c->ic_flags &= ~IEEE80211_CHAN_HT;
1123 c->ic_flags |= IEEE80211_CHAN_HT40D;
1124 }
1125 }
1126 }
1127
1128 /*
1129 * rt2870_init_locked
1130 */
1131 static void rt2870_init_locked(void *priv)
1132 {
1133 struct rt2870_softc *sc;
1134 struct ifnet *ifp;
1135 struct ieee80211com *ic;
1136 int ntries, error, i;
1137 uint32_t tmp, stacnt[6];
1138
1139 sc = priv;
1140 ifp = sc->ifp;
1141 ic = ifp->if_l2com;
1142
1143 RT2870_DPRINTF(sc, RT2870_DEBUG_ANY,
1144 "%s: initializing\n",
1145 device_get_nameunit(sc->dev));
1146
1147 RT2870_SOFTC_ASSERT_LOCKED(sc);
1148
1149 if (!(sc->flags & RT2870_SOFTC_FLAGS_UCODE_LOADED))
1150 {
1151 RT2870_DPRINTF(sc, RT2870_DEBUG_ANY,
1152 "%s: loading 8051 microcode\n",
1153 device_get_nameunit(sc->dev));
1154
1155 error = rt2870_io_mcu_load_ucode(sc, rt2870_ucode, sizeof(rt2870_ucode));
1156 if (error != 0)
1157 {
1158 printf("%s: could not load 8051 microcode\n",
1159 device_get_nameunit(sc->dev));
1160 goto fail;
1161 }
1162
1163 RT2870_DPRINTF(sc, RT2870_DEBUG_ANY,
1164 "%s: 8051 microcode was successfully loaded\n",
1165 device_get_nameunit(sc->dev));
1166
1167 sc->flags |= RT2870_SOFTC_FLAGS_UCODE_LOADED;
1168 }
1169
1170 /* wait while DMA engine is busy */
1171
1172 for (ntries = 0; ntries < 100; ntries++)
1173 {
1174 tmp = rt2870_io_mac_read(sc, RT2870_REG_SCHDMA_WPDMA_GLO_CFG);
1175 if (!(tmp & (RT2870_REG_TX_DMA_BUSY | RT2870_REG_RX_DMA_BUSY)))
1176 break;
1177
1178 DELAY(1000);
1179 }
1180
1181 if (ntries == 100)
1182 {
1183 printf("%s: timeout waiting for DMA engine\n",
1184 device_get_nameunit(sc->dev));
1185 goto fail;
1186 }
1187
1188 tmp &= 0xff0;
1189 tmp |= RT2870_REG_TX_WB_DDONE;
1190
1191 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WPDMA_GLO_CFG, tmp);
1192
1193 /* PBF hardware reset */
1194
1195 tmp = rt2870_io_mac_read(sc, RT2870_REG_PBF_SYS_CTRL);
1196
1197 tmp &= ~(1 << 13);
1198
1199 rt2870_io_mac_write(sc, RT2870_REG_PBF_SYS_CTRL, tmp);
1200
1201 rt2870_io_mac_write(sc, RT2870_REG_SYS_CTRL,
1202 RT2870_REG_MAC_SRST | RT2870_REG_BBP_HRST);
1203
1204 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_USB_DMA_CFG, 0);
1205
1206 rt2870_io_mcu_reset(sc);
1207
1208 rt2870_io_mac_write(sc, RT2870_REG_SYS_CTRL, 0);
1209
1210 /* init Tx power per rate */
1211
1212 for (i = 0; i < RT2870_SOFTC_TXPOW_RATE_COUNT; i++)
1213 {
1214 if (sc->txpow_rate_20mhz[i] == 0xffffffff)
1215 continue;
1216
1217 rt2870_io_mac_write(sc, RT2870_REG_TX_PWR_CFG(i),
1218 sc->txpow_rate_20mhz[i]);
1219 }
1220
1221 for (i = 0; i < RT2870_DEF_MAC_SIZE; i++)
1222 rt2870_io_mac_write(sc, rt2870_def_mac[i].reg,
1223 rt2870_def_mac[i].val);
1224
1225 /* wait while MAC is busy */
1226
1227 for (ntries = 0; ntries < 100; ntries++)
1228 {
1229 if (!(rt2870_io_mac_read(sc, RT2870_REG_STATUS_CFG) &
1230 (RT2870_REG_STATUS_TX_BUSY | RT2870_REG_STATUS_RX_BUSY)))
1231 break;
1232
1233 DELAY(1000);
1234 }
1235
1236 if (ntries == 100)
1237 {
1238 printf("%s: timeout waiting for MAC\n",
1239 device_get_nameunit(sc->dev));
1240 goto fail;
1241 }
1242
1243 /* clear Host to MCU mailbox */
1244
1245 rt2870_io_mac_write(sc, RT2870_REG_H2M_MAILBOX_BBP_AGENT, 0);
1246 rt2870_io_mac_write(sc, RT2870_REG_H2M_MAILBOX, 0);
1247
1248 DELAY(1000);
1249
1250 error = rt2870_init_bbp(sc);
1251 if (error != 0)
1252 goto fail;
1253
1254 /* set up maximum buffer sizes */
1255
1256 tmp = (1 << 12) | RT2870_MAX_AGG_SIZE;
1257
1258 rt2870_io_mac_write(sc, RT2870_REG_MAX_LEN_CFG, tmp);
1259
1260 if (sc->mac_rev == 0x28720200)
1261 {
1262 /* set max. PSDU length from 16K to 32K bytes */
1263
1264 tmp = rt2870_io_mac_read(sc, RT2870_REG_MAX_LEN_CFG);
1265
1266 tmp &= ~(3 << 12);
1267 tmp |= (2 << 12);
1268
1269 rt2870_io_mac_write(sc, RT2870_REG_MAX_LEN_CFG, tmp);
1270 }
1271
1272 if (sc->mac_rev >= 0x28720200 && sc->mac_rev < 0x30700200)
1273 {
1274 tmp = rt2870_io_mac_read(sc, RT2870_REG_MAX_LEN_CFG);
1275
1276 tmp &= 0xfff;
1277 tmp |= 0x2000;
1278
1279 rt2870_io_mac_write(sc, RT2870_REG_MAX_LEN_CFG, tmp);
1280 }
1281
1282 /* set mac address */
1283
1284 rt2870_asic_set_macaddr(sc, IF_LLADDR(ifp));
1285
1286 /* clear statistic registers */
1287
1288 rt2870_io_mac_read_multi(sc, RT2870_REG_RX_STA_CNT0,
1289 stacnt, sizeof(stacnt));
1290
1291 /* send LEDs operating mode to microcontroller */
1292
1293 rt2870_io_mcu_cmd(sc, RT2870_IO_MCU_CMD_LED1,
1294 RT2870_REG_H2M_TOKEN_NO_INTR, sc->led_off[0]);
1295 rt2870_io_mcu_cmd(sc, RT2870_IO_MCU_CMD_LED2,
1296 RT2870_REG_H2M_TOKEN_NO_INTR, sc->led_off[1]);
1297 rt2870_io_mcu_cmd(sc, RT2870_IO_MCU_CMD_LED3,
1298 RT2870_REG_H2M_TOKEN_NO_INTR, sc->led_off[2]);
1299
1300 /* write vendor-specific BBP values (from EEPROM) */
1301
1302 for (i = 0; i < RT2870_SOFTC_BBP_EEPROM_COUNT; i++)
1303 {
1304 if (sc->bbp_eeprom[i].reg == 0x00 ||
1305 sc->bbp_eeprom[i].reg == 0xff)
1306 continue;
1307
1308 rt2870_io_bbp_write(sc, sc->bbp_eeprom[i].reg,
1309 sc->bbp_eeprom[i].val);
1310 }
1311
1312 /* disable non-existing Rx chains */
1313
1314 tmp = rt2870_io_bbp_read(sc, 3);
1315
1316 tmp &= ~((1 << 4) | (1 << 3));
1317
1318 if (sc->nrxpath == 3)
1319 tmp |= (1 << 4);
1320 else if (sc->nrxpath == 2)
1321 tmp |= (1 << 3);
1322
1323 rt2870_io_bbp_write(sc, 3, tmp);
1324
1325 /* disable non-existing Tx chains */
1326
1327 tmp = rt2870_io_bbp_read(sc, 1);
1328
1329 tmp &= ~((1 << 4) | (1 << 3));
1330
1331 if (sc->ntxpath == 2)
1332 tmp |= (1 << 4);
1333
1334 rt2870_io_bbp_write(sc, 1, tmp);
1335
1336 /* set current channel */
1337
1338 rt2870_rf_set_chan(sc, ic->ic_curchan);
1339
1340 /* turn radio LED on */
1341
1342 rt2870_led_cmd(sc, RT2870_LED_CMD_RADIO_ON);
1343
1344 rt2870_io_mcu_cmd(sc, RT2870_IO_MCU_CMD_BOOT,
1345 RT2870_REG_H2M_TOKEN_NO_INTR, 0);
1346
1347 /* set RTS threshold */
1348
1349 rt2870_asic_update_rtsthreshold(sc);
1350
1351 /* set Tx power */
1352
1353 rt2870_asic_update_txpower(sc);
1354
1355 /* set up protection mode */
1356
1357 rt2870_asic_updateprot(sc);
1358
1359 /* clear key tables */
1360
1361 rt2870_asic_clear_keytables(sc);
1362
1363 /* clear beacon frame space (entries = 8, entry size = 512) */
1364
1365 rt2870_io_mac_set_region_4(sc, RT2870_REG_BEACON_BASE(0), 0, 1024);
1366
1367 if (rt2870_txrx_enable(sc) != 0)
1368 goto fail;
1369
1370 /* clear garbage interrupts */
1371
1372 tmp = rt2870_io_mac_read(sc, 0x1300);
1373
1374 taskqueue_unblock(sc->taskqueue);
1375
1376 /* init Tx and Rx rings */
1377
1378 for(i = 0; i < sc->usb_endpoints - 1; i++)
1379 rt2870_reset_tx_ring(sc, &sc->tx_ring[i]);
1380
1381 rt2870_reset_rx_ring(sc, &sc->rx_ring);
1382
1383 rt2870_reset_cmd_ring(sc, &sc->cmd_ring);
1384
1385 for(i = 0; i < sc->usb_endpoints - 1; i++)
1386 {
1387 usbd_xfer_set_priv(sc->usb_xfer[i + 1], &sc->tx_ring[i]);
1388 usbd_xfer_set_stall(sc->usb_xfer[i + 1]);
1389 }
1390
1391 /* start up the receive pipe */
1392
1393 for(i = 0; i < RT2870_SOFTC_RX_RING_DATA_COUNT; i++)
1394 usbd_transfer_start(sc->usb_xfer[0]);
1395
1396 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1397 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1398
1399 sc->periodic_round = 0;
1400
1401 callout_reset(&sc->periodic_ch, hz / 10, rt2870_periodic, sc);
1402
1403 return;
1404
1405 fail:
1406
1407 rt2870_stop_locked(sc);
1408 }
1409
1410 /*
1411 * rt2870_init
1412 */
1413 static void rt2870_init(void *priv)
1414 {
1415 struct rt2870_softc *sc;
1416
1417 sc = priv;
1418
1419 RT2870_SOFTC_LOCK(sc);
1420
1421 rt2870_init_locked(sc);
1422
1423 RT2870_SOFTC_UNLOCK(sc);
1424 }
1425
1426 /*
1427 * rt2870_init_bbp
1428 */
1429 static int rt2870_init_bbp(struct rt2870_softc *sc)
1430 {
1431 int ntries, i;
1432 uint8_t tmp;
1433
1434 for (ntries = 0; ntries < 20; ntries++)
1435 {
1436 tmp = rt2870_io_bbp_read(sc, 0);
1437 if (tmp != 0x00 && tmp != 0xff)
1438 break;
1439 }
1440
1441 if (tmp == 0x00 || tmp == 0xff)
1442 {
1443 printf("%s: timeout waiting for BBP to wakeup\n",
1444 device_get_nameunit(sc->dev));
1445 return ETIMEDOUT;
1446 }
1447
1448 for (i = 0; i < RT2870_DEF_BBP_SIZE; i++)
1449 rt2870_io_bbp_write(sc, rt2870_def_bbp[i].reg,
1450 rt2870_def_bbp[i].val);
1451
1452 if ((sc->mac_rev & 0xffff) != 0x0101)
1453 rt2870_io_bbp_write(sc, 84, 0x19);
1454
1455 if (sc->mac_rev == 0x28600100)
1456 {
1457 rt2870_io_bbp_write(sc, 69, 0x16);
1458 rt2870_io_bbp_write(sc, 73, 0x12);
1459 }
1460
1461 return 0;
1462 }
1463
1464 /*
1465 * rt2870_stop_locked
1466 */
1467 static void rt2870_stop_locked(void *priv)
1468 {
1469 struct rt2870_softc *sc;
1470 struct ifnet *ifp;
1471 struct ieee80211com *ic;
1472 uint32_t tmp;
1473 int i;
1474
1475 sc = priv;
1476 ifp = sc->ifp;
1477 ic = ifp->if_l2com;
1478
1479 RT2870_DPRINTF(sc, RT2870_DEBUG_ANY,
1480 "%s: stopping\n",
1481 device_get_nameunit(sc->dev));
1482
1483 RT2870_SOFTC_ASSERT_LOCKED(sc);
1484
1485 sc->tx_timer = 0;
1486
1487 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1488 rt2870_led_cmd(sc, RT2870_LED_CMD_RADIO_OFF);
1489
1490 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
1491
1492 callout_stop(&sc->periodic_ch);
1493 callout_stop(&sc->tx_watchdog_ch);
1494
1495 RT2870_SOFTC_UNLOCK(sc);
1496
1497 taskqueue_block(sc->taskqueue);
1498
1499 taskqueue_drain(sc->taskqueue, &sc->rx_done_task);
1500 taskqueue_drain(sc->taskqueue, &sc->tx_done_task);
1501 taskqueue_drain(sc->taskqueue, &sc->periodic_task);
1502 taskqueue_drain(sc->taskqueue, &sc->cmd_task);
1503
1504 RT2870_SOFTC_LOCK(sc);
1505
1506 /* clear key tables */
1507
1508 rt2870_asic_clear_keytables(sc);
1509
1510 /* disable Tx/Rx */
1511
1512 tmp = rt2870_io_mac_read(sc, RT2870_REG_SYS_CTRL);
1513
1514 tmp &= ~(RT2870_REG_RX_ENABLE | RT2870_REG_TX_ENABLE);
1515
1516 rt2870_io_mac_write(sc, RT2870_REG_SYS_CTRL, tmp);
1517
1518 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_USB_DMA_CFG, 0);
1519
1520 /* reset adapter */
1521
1522 rt2870_io_mac_write(sc, RT2870_REG_SYS_CTRL,
1523 RT2870_REG_MAC_SRST | RT2870_REG_BBP_HRST);
1524 rt2870_io_mac_write(sc, RT2870_REG_SYS_CTRL, 0);
1525
1526 /* abort any pending transfers */
1527
1528 for (i = 0; i < sc->usb_endpoints; i++)
1529 usbd_transfer_stop(sc->usb_xfer[i]);
1530 }
1531
1532 /*
1533 * rt2870_stop
1534 */
1535 static void rt2870_stop(void *priv)
1536 {
1537 struct rt2870_softc *sc;
1538
1539 sc = priv;
1540
1541 RT2870_SOFTC_LOCK(sc);
1542
1543 rt2870_stop_locked(sc);
1544
1545 RT2870_SOFTC_UNLOCK(sc);
1546 }
1547
1548 /*
1549 * rt2870_start
1550 */
1551 static void rt2870_start(struct ifnet *ifp)
1552 {
1553 struct rt2870_softc *sc;
1554 struct ieee80211_node *ni;
1555 struct mbuf *m;
1556 int qid;
1557
1558 sc = ifp->if_softc;
1559
1560 RT2870_SOFTC_LOCK(sc);
1561
1562 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
1563 {
1564 RT2870_SOFTC_UNLOCK(sc);
1565 return;
1566 }
1567
1568 for (;;)
1569 {
1570 IF_POLL(&ifp->if_snd, m);
1571 if (m == NULL)
1572 break;
1573
1574 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1575
1576 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1577
1578 qid = M_WME_GETAC(m);
1579
1580 if (sc->tx_ring[qid].queued >= RT2870_SOFTC_TX_RING_DATA_COUNT)
1581 {
1582 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
1583 "%s: if_start: Tx ring with qid=%d is full\n",
1584 device_get_nameunit(sc->dev), qid);
1585
1586 m_freem(m);
1587 ieee80211_free_node(ni);
1588
1589 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1590 ifp->if_oerrors++;
1591
1592 sc->tx_data_queue_full[qid]++;
1593
1594 break;
1595 }
1596
1597 if (rt2870_tx_data(sc, m, ni, qid) != 0)
1598 {
1599 ieee80211_free_node(ni);
1600 ifp->if_oerrors++;
1601 break;
1602 }
1603
1604 sc->tx_timer = RT2870_TX_WATCHDOG_TIMEOUT;
1605
1606 callout_reset(&sc->tx_watchdog_ch, hz, rt2870_tx_watchdog, sc);
1607 }
1608
1609 RT2870_SOFTC_UNLOCK(sc);
1610 }
1611
1612 /*
1613 * rt2870_ioctl
1614 */
1615 static int rt2870_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1616 {
1617 struct rt2870_softc *sc;
1618 struct ieee80211com *ic;
1619 struct ifreq *ifr;
1620 int error, startall;
1621
1622 sc = ifp->if_softc;
1623 ic = ifp->if_l2com;
1624 ifr = (struct ifreq *) data;
1625
1626 error = 0;
1627
1628 switch (cmd)
1629 {
1630 case SIOCSIFFLAGS:
1631 startall = 0;
1632
1633 RT2870_SOFTC_LOCK(sc);
1634
1635 if (ifp->if_flags & IFF_UP)
1636 {
1637 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1638 {
1639 if ((ifp->if_flags ^ sc->if_flags) & IFF_PROMISC)
1640 rt2870_asic_update_promisc(sc);
1641 }
1642 else
1643 {
1644 rt2870_init_locked(sc);
1645 startall = 1;
1646 }
1647 }
1648 else
1649 {
1650 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1651 rt2870_stop_locked(sc);
1652 }
1653
1654 sc->if_flags = ifp->if_flags;
1655
1656 RT2870_SOFTC_UNLOCK(sc);
1657
1658 if (startall)
1659 ieee80211_start_all(ic);
1660 break;
1661
1662 case SIOCGIFMEDIA:
1663 case SIOCSIFMEDIA:
1664 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1665 break;
1666
1667 case SIOCGIFADDR:
1668 error = ether_ioctl(ifp, cmd, data);
1669 break;
1670
1671 default:
1672 error = EINVAL;
1673 break;
1674 }
1675
1676 return error;
1677 }
1678
1679 /*
1680 * rt2870_vap_create
1681 */
1682 static struct ieee80211vap *rt2870_vap_create(struct ieee80211com *ic,
1683 const char name[IFNAMSIZ], int unit, int opmode, int flags,
1684 const uint8_t bssid[IEEE80211_ADDR_LEN],
1685 const uint8_t mac[IEEE80211_ADDR_LEN])
1686 {
1687 struct rt2870_softc *sc;
1688 struct ifnet *ifp;
1689 struct rt2870_softc_vap *rvap;
1690 struct ieee80211vap *vap;
1691
1692 ifp = ic->ic_ifp;
1693 sc = ifp->if_softc;
1694
1695 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
1696 "%s: VAP create: opmode=%s\n",
1697 device_get_nameunit(sc->dev),
1698 ieee80211_opmode_name[opmode]);
1699
1700 switch (opmode)
1701 {
1702 case IEEE80211_M_MONITOR:
1703 case IEEE80211_M_IBSS:
1704 case IEEE80211_M_STA:
1705 case IEEE80211_M_AHDEMO:
1706 case IEEE80211_M_HOSTAP:
1707 case IEEE80211_M_MBSS:
1708 if (!TAILQ_EMPTY(&ic->ic_vaps))
1709 {
1710 if_printf(ifp, "only 1 VAP supported\n");
1711 return NULL;
1712 }
1713
1714 if (opmode == IEEE80211_M_STA)
1715 flags |= IEEE80211_CLONE_NOBEACONS;
1716 break;
1717
1718 case IEEE80211_M_WDS:
1719 if (TAILQ_EMPTY(&ic->ic_vaps) || ic->ic_opmode != IEEE80211_M_HOSTAP)
1720 {
1721 if_printf(ifp, "WDS only supported in AP mode\n");
1722 return NULL;
1723 }
1724
1725 flags &= ~IEEE80211_CLONE_BSSID;
1726 break;
1727
1728 default:
1729 if_printf(ifp, "unknown opmode %d\n", opmode);
1730 return NULL;
1731 }
1732
1733 rvap = (struct rt2870_softc_vap *) malloc(sizeof(struct rt2870_softc_vap),
1734 M_80211_VAP, M_NOWAIT | M_ZERO);
1735 if (rvap == NULL)
1736 return NULL;
1737
1738 vap = &rvap->vap;
1739
1740 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
1741
1742 rvap->newstate = vap->iv_newstate;
1743 vap->iv_newstate = rt2870_vap_newstate;
1744
1745 vap->iv_reset = rt2870_vap_reset;
1746 vap->iv_key_update_begin = rt2870_vap_key_update_begin;
1747 vap->iv_key_update_end = rt2870_vap_key_update_end;
1748 vap->iv_key_set = rt2870_vap_key_set;
1749 vap->iv_key_delete = rt2870_vap_key_delete;
1750 vap->iv_update_beacon = rt2870_vap_update_beacon;
1751
1752 rt2870_amrr_init(&rvap->amrr, vap,
1753 sc->ntxpath,
1754 RT2870_AMRR_MIN_SUCCESS_THRESHOLD,
1755 RT2870_AMRR_MAX_SUCCESS_THRESHOLD,
1756 500);
1757
1758 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
1759
1760 ic->ic_opmode = opmode;
1761
1762 return vap;
1763 }
1764
1765 /*
1766 * rt2870_vap_delete
1767 */
1768 static void rt2870_vap_delete(struct ieee80211vap *vap)
1769 {
1770 struct rt2870_softc *sc;
1771 struct ieee80211com *ic;
1772 struct ifnet *ifp;
1773 struct rt2870_softc_vap *rvap;
1774
1775 ic = vap->iv_ic;
1776 ifp = ic->ic_ifp;
1777 sc = ifp->if_softc;
1778 rvap = (struct rt2870_softc_vap *) vap;
1779
1780 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
1781 "%s: VAP delete: opmode=%s\n",
1782 device_get_nameunit(sc->dev),
1783 ieee80211_opmode_name[vap->iv_opmode]);
1784
1785 rt2870_amrr_cleanup(&rvap->amrr);
1786
1787 ieee80211_vap_detach(vap);
1788
1789 free(rvap, M_80211_VAP);
1790 }
1791
1792 /*
1793 * rt2870_reset_vap
1794 */
1795 static int rt2870_vap_reset(struct ieee80211vap *vap, u_long cmd)
1796 {
1797 struct rt2870_softc *sc;
1798 struct ieee80211com *ic;
1799 struct ifnet *ifp;
1800 struct rt2870_softc_vap *rvap;
1801 int error;
1802
1803 ic = vap->iv_ic;
1804 ifp = ic->ic_ifp;
1805 sc = ifp->if_softc;
1806 rvap = (struct rt2870_softc_vap *) vap;
1807
1808 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
1809 "%s: VAP reset: cmd=%lu\n",
1810 device_get_nameunit(sc->dev), cmd);
1811
1812 error = 0;
1813
1814 RT2870_SOFTC_LOCK(sc);
1815
1816 switch (cmd)
1817 {
1818 case IEEE80211_IOC_RTSTHRESHOLD:
1819 rt2870_asic_update_rtsthreshold(sc);
1820 break;
1821
1822 case IEEE80211_IOC_PROTMODE:
1823 case IEEE80211_IOC_HTPROTMODE:
1824 rt2870_asic_updateprot(sc);
1825 break;
1826
1827 case IEEE80211_IOC_TXPOWER:
1828 rt2870_asic_update_txpower(sc);
1829 break;
1830
1831 case IEEE80211_IOC_SHORTGI:
1832 case IEEE80211_IOC_AMPDU_DENSITY:
1833 break;
1834
1835 default:
1836 error = ENETRESET;
1837 break;
1838 }
1839
1840 RT2870_SOFTC_UNLOCK(sc);
1841
1842 return error;
1843 }
1844
1845 /*
1846 * rt2870_vap_newstate
1847 */
1848 static int rt2870_vap_newstate(struct ieee80211vap *vap,
1849 enum ieee80211_state nstate, int arg)
1850 {
1851 struct rt2870_softc *sc;
1852 struct ieee80211com *ic;
1853 struct ifnet *ifp;
1854 struct rt2870_softc_vap *rvap;
1855 struct ieee80211_node *ni;
1856 int error;
1857
1858 ic = vap->iv_ic;
1859 ifp = ic->ic_ifp;
1860 sc = ifp->if_softc;
1861 rvap = (struct rt2870_softc_vap *) vap;
1862
1863 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
1864 "%s: VAP newstate: %s -> %s\n",
1865 device_get_nameunit(sc->dev),
1866 ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]);
1867
1868 error = rvap->newstate(vap, nstate, arg);
1869 if (error != 0)
1870 return error;
1871
1872 IEEE80211_UNLOCK(ic);
1873
1874 RT2870_SOFTC_LOCK(sc);
1875
1876 /* turn link LED off */
1877
1878 if (nstate != IEEE80211_S_RUN)
1879 rt2870_led_cmd(sc, RT2870_LED_CMD_RADIO_OFF);
1880
1881 switch (nstate)
1882 {
1883 case IEEE80211_S_INIT:
1884 rt2870_asic_disable_tsf_sync(sc);
1885 break;
1886
1887 case IEEE80211_S_RUN:
1888 ni = vap->iv_bss;
1889
1890 rt2870_rf_set_chan(sc, ni->ni_chan);
1891
1892 if (vap->iv_opmode != IEEE80211_M_MONITOR)
1893 {
1894 rt2870_asic_enable_mrr(sc);
1895 rt2870_asic_set_txpreamble(sc);
1896 rt2870_asic_set_basicrates(sc);
1897 rt2870_asic_update_txpower(sc);
1898 rt2870_asic_set_bssid(sc, ni->ni_bssid);
1899 }
1900
1901 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1902 vap->iv_opmode == IEEE80211_M_IBSS ||
1903 vap->iv_opmode == IEEE80211_M_MBSS)
1904 {
1905 error = rt2870_asic_update_beacon(sc, vap);
1906 if (error != 0)
1907 break;
1908 }
1909
1910 if (vap->iv_opmode != IEEE80211_M_MONITOR)
1911 rt2870_asic_enable_tsf_sync(sc);
1912
1913 /* turn link LED on */
1914
1915 if (vap->iv_opmode != IEEE80211_M_MONITOR)
1916 {
1917 rt2870_led_cmd(sc, RT2870_LED_CMD_RADIO_ON |
1918 (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan) ?
1919 RT2870_LED_CMD_LINK_2GHZ : RT2870_LED_CMD_LINK_5GHZ));
1920 }
1921 break;
1922
1923 default:
1924 break;
1925 }
1926
1927 RT2870_SOFTC_UNLOCK(sc);
1928
1929 IEEE80211_LOCK(ic);
1930
1931 return error;
1932 }
1933
1934 /*
1935 * rt2870_vap_key_update_begin
1936 */
1937 static void rt2870_vap_key_update_begin(struct ieee80211vap *vap)
1938 {
1939 struct rt2870_softc *sc;
1940 struct ieee80211com *ic;
1941 struct ifnet *ifp;
1942
1943 ic = vap->iv_ic;
1944 ifp = ic->ic_ifp;
1945 sc = ifp->if_softc;
1946
1947 RT2870_DPRINTF(sc, RT2870_DEBUG_KEY,
1948 "%s: VAP key update begin\n",
1949 device_get_nameunit(sc->dev));
1950
1951 taskqueue_block(sc->taskqueue);
1952
1953 IF_LOCK(&ifp->if_snd);
1954 }
1955
1956 /*
1957 * rt2870_vap_key_update_end
1958 */
1959 static void rt2870_vap_key_update_end(struct ieee80211vap *vap)
1960 {
1961 struct rt2870_softc *sc;
1962 struct ieee80211com *ic;
1963 struct ifnet *ifp;
1964
1965 ic = vap->iv_ic;
1966 ifp = ic->ic_ifp;
1967 sc = ifp->if_softc;
1968
1969 RT2870_DPRINTF(sc, RT2870_DEBUG_KEY,
1970 "%s: VAP key update end\n",
1971 device_get_nameunit(sc->dev));
1972
1973 IF_UNLOCK(&ifp->if_snd);
1974
1975 taskqueue_unblock(sc->taskqueue);
1976 }
1977
1978 /*
1979 * rt2870_vap_key_set
1980 */
1981 static int rt2870_vap_key_set(struct ieee80211vap *vap,
1982 const struct ieee80211_key *k, const uint8_t mac[IEEE80211_ADDR_LEN])
1983 {
1984 struct rt2870_softc *sc;
1985 struct ieee80211com *ic;
1986 struct ifnet *ifp;
1987 struct ieee80211_node *ni;
1988 struct rt2870_cmd_argv_keyset cmd_argv;
1989 uint16_t associd;
1990
1991 if (k->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP &&
1992 k->wk_cipher->ic_cipher != IEEE80211_CIPHER_TKIP &&
1993 k->wk_cipher->ic_cipher != IEEE80211_CIPHER_AES_CCM)
1994 return EINVAL;
1995
1996 ic = vap->iv_ic;
1997 ifp = ic->ic_ifp;
1998 sc = ifp->if_softc;
1999
2000 if (vap->iv_opmode != IEEE80211_M_HOSTAP)
2001 ni = vap->iv_bss;
2002 else
2003 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, mac);
2004
2005 associd = (ni != NULL) ? ni->ni_associd : 0;
2006
2007 if ((vap->iv_opmode == IEEE80211_M_HOSTAP) && (ni != NULL))
2008 ieee80211_free_node(ni);
2009
2010 memcpy(&cmd_argv.key, k, sizeof(struct ieee80211_key));
2011 cmd_argv.associd = associd;
2012
2013 rt2870_do_async(sc, rt2870_vap_key_set_cb,
2014 &cmd_argv, sizeof(struct rt2870_cmd_argv_keyset));
2015
2016 return 1;
2017 }
2018
2019 /*
2020 * rt2870_vap_key_delete
2021 */
2022 static int rt2870_vap_key_delete(struct ieee80211vap *vap,
2023 const struct ieee80211_key *k)
2024 {
2025 struct rt2870_softc *sc;
2026 struct ieee80211com *ic;
2027 struct ifnet *ifp;
2028 struct ieee80211_node *ni;
2029 struct rt2870_cmd_argv_keydelete cmd_argv;
2030 uint16_t associd;
2031
2032 ic = vap->iv_ic;
2033 ifp = ic->ic_ifp;
2034 sc = ifp->if_softc;
2035 ni = vap->iv_bss;
2036 associd = (ni != NULL) ? ni->ni_associd : 0;
2037
2038 memcpy(&cmd_argv.key, k, sizeof(struct ieee80211_key));
2039 cmd_argv.associd = associd;
2040
2041 rt2870_do_async(sc, rt2870_vap_key_delete_cb,
2042 &cmd_argv, sizeof(struct rt2870_cmd_argv_keydelete));
2043
2044 return 1;
2045 }
2046
2047 /*
2048 * rt2870_vap_update_beacon
2049 */
2050 static void rt2870_vap_update_beacon(struct ieee80211vap *vap, int what)
2051 {
2052 struct rt2870_softc *sc;
2053 struct ieee80211com *ic;
2054 struct ifnet *ifp;
2055
2056 ic = vap->iv_ic;
2057 ifp = ic->ic_ifp;
2058 sc = ifp->if_softc;
2059
2060 RT2870_DPRINTF(sc, RT2870_DEBUG_BEACON,
2061 "%s: VAP update beacon\n",
2062 device_get_nameunit(sc->dev));
2063
2064 rt2870_do_async(sc, rt2870_vap_update_beacon_cb, NULL, 0);
2065 }
2066
2067 /*
2068 * rt2870_node_alloc
2069 */
2070 static struct ieee80211_node *rt2870_node_alloc(struct ieee80211vap *vap,
2071 const uint8_t mac[IEEE80211_ADDR_LEN])
2072 {
2073 return malloc(sizeof(struct rt2870_softc_node),
2074 M_80211_NODE, M_NOWAIT | M_ZERO);
2075 }
2076
2077 /*
2078 * rt2870_setregdomain
2079 */
2080 static int rt2870_setregdomain(struct ieee80211com *ic,
2081 struct ieee80211_regdomain *reg,
2082 int nchans, struct ieee80211_channel chans[])
2083 {
2084 struct rt2870_softc *sc;
2085 struct ifnet *ifp;
2086
2087 ifp = ic->ic_ifp;
2088 sc = ifp->if_softc;
2089
2090 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
2091 "%s: set regulatory domain: country=%d, country code string=%c%c, location=%c\n",
2092 device_get_nameunit(sc->dev),
2093 reg->country, reg->isocc[0], reg->isocc[1], reg->location);
2094
2095 return 0;
2096 }
2097
2098 /*
2099 * rt2870_getradiocaps
2100 */
2101 static void rt2870_getradiocaps(struct ieee80211com *ic,
2102 int maxchans, int *nchans, struct ieee80211_channel chans[])
2103 {
2104 *nchans = (ic->ic_nchans >= maxchans) ? maxchans : ic->ic_nchans;
2105
2106 memcpy(chans, ic->ic_channels, (*nchans) * sizeof(struct ieee80211_channel));
2107 }
2108
2109 /*
2110 * rt2870_scan_start
2111 */
2112 static void rt2870_scan_start(struct ieee80211com *ic)
2113 {
2114 struct rt2870_softc *sc;
2115 struct ifnet *ifp;
2116
2117 ifp = ic->ic_ifp;
2118 sc = ifp->if_softc;
2119
2120 RT2870_SOFTC_LOCK(sc);
2121
2122 rt2870_asic_disable_tsf_sync(sc);
2123
2124 RT2870_SOFTC_UNLOCK(sc);
2125 }
2126
2127 /*
2128 * rt2870_scan_end
2129 */
2130 static void rt2870_scan_end(struct ieee80211com *ic)
2131 {
2132 struct rt2870_softc *sc;
2133 struct ifnet *ifp;
2134
2135 ifp = ic->ic_ifp;
2136 sc = ifp->if_softc;
2137
2138 RT2870_SOFTC_LOCK(sc);
2139
2140 rt2870_asic_enable_tsf_sync(sc);
2141
2142 RT2870_SOFTC_UNLOCK(sc);
2143 }
2144
2145 /*
2146 * rt2870_set_channel
2147 */
2148 static void rt2870_set_channel(struct ieee80211com *ic)
2149 {
2150 struct rt2870_softc *sc;
2151 struct ifnet *ifp;
2152
2153 ifp = ic->ic_ifp;
2154 sc = ifp->if_softc;
2155
2156 RT2870_DPRINTF(sc, RT2870_DEBUG_CHAN,
2157 "%s: set channel: channel=%u, HT%s%s\n",
2158 device_get_nameunit(sc->dev),
2159 ieee80211_chan2ieee(ic, ic->ic_curchan),
2160 !IEEE80211_IS_CHAN_HT(ic->ic_curchan) ? " disabled" :
2161 IEEE80211_IS_CHAN_HT20(ic->ic_curchan) ? "20":
2162 IEEE80211_IS_CHAN_HT40U(ic->ic_curchan) ? "40U" : "40D",
2163 (ic->ic_flags & IEEE80211_F_SCAN) ? ", scanning" : "");
2164
2165 RT2870_SOFTC_LOCK(sc);
2166
2167 rt2870_rf_set_chan(sc, ic->ic_curchan);
2168
2169 RT2870_SOFTC_UNLOCK(sc);
2170 }
2171
2172 /*
2173 * rt2870_newassoc
2174 */
2175 static void rt2870_newassoc(struct ieee80211_node *ni, int isnew)
2176 {
2177 struct rt2870_softc *sc;
2178 struct ieee80211com *ic;
2179 struct ifnet *ifp;
2180 struct ieee80211vap *vap;
2181 struct rt2870_softc_vap *rvap;
2182 uint16_t associd;
2183 uint8_t wcid;
2184
2185 vap = ni->ni_vap;
2186 ic = vap->iv_ic;
2187 ifp = ic->ic_ifp;
2188 sc = ifp->if_softc;
2189 rvap = (struct rt2870_softc_vap *) vap;
2190
2191 associd = (ni != NULL) ? ni->ni_associd : 0;
2192 wcid = RT2870_AID2WCID(associd);
2193
2194 RT2870_DPRINTF(sc, RT2870_DEBUG_NODE,
2195 "%s: new association: wcid=0x%02x, "
2196 "mac addr=%s, QoS %s, ERP %s, HT %s\n",
2197 device_get_nameunit(sc->dev), wcid,
2198 ether_sprintf(ni->ni_macaddr),
2199 (ni->ni_flags & IEEE80211_NODE_QOS) ? "enabled" : "disabled",
2200 (ni->ni_flags & IEEE80211_NODE_ERP) ? "enabled" : "disabled",
2201 (ni->ni_flags & IEEE80211_NODE_HT) ? "enabled" : "disabled");
2202
2203 RT2870_SOFTC_LOCK(sc);
2204
2205 rt2870_io_mac_write_multi(sc, RT2870_REG_WCID(wcid),
2206 ni->ni_macaddr, IEEE80211_ADDR_LEN);
2207
2208 rt2870_amrr_node_init(&rvap->amrr, &sc->amrr_node[wcid], ni);
2209
2210 RT2870_DPRINTF(sc, RT2870_DEBUG_RATE,
2211 "%s: initial%s node Tx rate: associd=0x%04x, rate=0x%02x, max rate=0x%02x\n",
2212 device_get_nameunit(sc->dev),
2213 (ni->ni_flags & IEEE80211_NODE_HT) ? " HT" : "",
2214 ni->ni_associd, ni->ni_txrate,
2215 (ni->ni_flags & IEEE80211_NODE_HT) ?
2216 (ni->ni_htrates.rs_rates[ni->ni_htrates.rs_nrates - 1] | IEEE80211_RATE_MCS) :
2217 (ni->ni_rates.rs_rates[ni->ni_rates.rs_nrates - 1] & IEEE80211_RATE_VAL));
2218
2219 rt2870_asic_updateprot(sc);
2220 rt2870_asic_updateslot(sc);
2221 rt2870_asic_set_txpreamble(sc);
2222
2223 RT2870_SOFTC_UNLOCK(sc);
2224 }
2225
2226 /*
2227 * rt2870_updateslot
2228 */
2229 static void rt2870_updateslot(struct ifnet *ifp)
2230 {
2231 struct rt2870_softc *sc;
2232
2233 sc = ifp->if_softc;
2234
2235 rt2870_do_async(sc, rt2870_updateslot_cb, NULL, 0);
2236 }
2237
2238 /*
2239 * rt2870_update_promisc
2240 */
2241 static void rt2870_update_promisc(struct ifnet *ifp)
2242 {
2243 struct rt2870_softc *sc;
2244
2245 sc = ifp->if_softc;
2246
2247 RT2870_SOFTC_LOCK(sc);
2248
2249 rt2870_asic_update_promisc(sc);
2250
2251 RT2870_SOFTC_UNLOCK(sc);
2252 }
2253
2254 /*
2255 * rt2870_update_mcast
2256 */
2257 static void rt2870_update_mcast(struct ifnet *ifp)
2258 {
2259 struct rt2870_softc *sc;
2260
2261 sc = ifp->if_softc;
2262 }
2263
2264 /*
2265 * rt2870_wme_update
2266 */
2267 static int rt2870_wme_update(struct ieee80211com *ic)
2268 {
2269 struct rt2870_softc *sc;
2270 struct ifnet *ifp;
2271
2272 ifp = ic->ic_ifp;
2273 sc = ifp->if_softc;
2274
2275 rt2870_do_async(sc, rt2870_wme_update_cb, NULL, 0);
2276
2277 return 0;
2278 }
2279
2280 /*
2281 * rt2870_raw_xmit
2282 */
2283 static int rt2870_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2284 const struct ieee80211_bpf_params *params)
2285 {
2286 struct rt2870_softc *sc;
2287 struct ieee80211com *ic;
2288 struct ifnet *ifp;
2289
2290 ic = ni->ni_ic;
2291 ifp = ic->ic_ifp;
2292 sc = ifp->if_softc;
2293
2294 RT2870_SOFTC_LOCK(sc);
2295
2296 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
2297 {
2298 RT2870_SOFTC_UNLOCK(sc);
2299
2300 m_freem(m);
2301 ieee80211_free_node(ni);
2302
2303 return ENETDOWN;
2304 }
2305
2306 if (sc->tx_ring[sc->tx_ring_mgtqid].queued >= RT2870_SOFTC_TX_RING_DATA_COUNT)
2307 {
2308 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
2309 "%s: raw xmit: Tx ring with qid=%d is full\n",
2310 device_get_nameunit(sc->dev), sc->tx_ring_mgtqid);
2311
2312 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2313
2314 RT2870_SOFTC_UNLOCK(sc);
2315
2316 m_freem(m);
2317 ieee80211_free_node(ni);
2318
2319 sc->tx_data_queue_full[sc->tx_ring_mgtqid]++;
2320
2321 return ENOBUFS;
2322 }
2323
2324 if (rt2870_tx_mgmt(sc, m, ni, sc->tx_ring_mgtqid) != 0)
2325 {
2326 ifp->if_oerrors++;
2327
2328 RT2870_SOFTC_UNLOCK(sc);
2329
2330 ieee80211_free_node(ni);
2331
2332 return EIO;
2333 }
2334
2335 sc->tx_timer = RT2870_TX_WATCHDOG_TIMEOUT;
2336
2337 RT2870_SOFTC_UNLOCK(sc);
2338
2339 return 0;
2340 }
2341
2342 /*
2343 * rt2870_recv_action
2344 */
2345 static int rt2870_recv_action(struct ieee80211_node *ni,
2346 const struct ieee80211_frame *wh,
2347 const uint8_t *frm, const uint8_t *efrm)
2348 {
2349 struct rt2870_softc *sc;
2350 struct ieee80211com *ic;
2351 struct ifnet *ifp;
2352 const struct ieee80211_action *ia;
2353 uint16_t associd, status, baparamset;
2354 uint8_t wcid;
2355 int ret, tid, bufsize;
2356 uint32_t tmp;
2357
2358 ic = ni->ni_ic;
2359 ifp = ic->ic_ifp;
2360 sc = ifp->if_softc;
2361
2362 ia = (const struct ieee80211_action *) frm;
2363
2364 ret = sc->recv_action(ni, wh, frm, efrm);
2365
2366 if (ia->ia_category != IEEE80211_ACTION_CAT_BA)
2367 return ret;
2368
2369 associd = (ni != NULL) ? ni->ni_associd : 0;
2370 wcid = RT2870_AID2WCID(associd);
2371
2372 switch (ia->ia_action)
2373 {
2374 /* IEEE80211_ACTION_BA_ADDBA_REQUEST */
2375 case IEEE80211_ACTION_BA_ADDBA_REQUEST:
2376 baparamset = LE_READ_2(frm + 3);
2377 tid = RT2870_MS(baparamset, IEEE80211_BAPS_TID);
2378 bufsize = RT2870_MS(baparamset, IEEE80211_BAPS_BUFSIZ);
2379
2380 RT2870_DPRINTF(sc, RT2870_DEBUG_BA,
2381 "%s: received ADDBA request: associd=0x%04x, tid=%d, bufsize=%d\n",
2382 device_get_nameunit(sc->dev), associd, tid, bufsize);
2383
2384 RT2870_SOFTC_LOCK(sc);
2385
2386 tmp = rt2870_io_mac_read(sc, RT2870_REG_WCID(wcid) + 4);
2387
2388 tmp |= (0x10000 << tid);
2389
2390 rt2870_io_mac_write(sc, RT2870_REG_WCID(wcid) + 4, tmp);
2391
2392 RT2870_SOFTC_UNLOCK(sc);
2393 break;
2394
2395 /* IEEE80211_ACTION_BA_ADDBA_RESPONSE */
2396 case IEEE80211_ACTION_BA_ADDBA_RESPONSE:
2397 status = LE_READ_2(frm + 3);
2398 baparamset = LE_READ_2(frm + 4);
2399 tid = RT2870_MS(baparamset, IEEE80211_BAPS_TID);
2400 bufsize = RT2870_MS(baparamset, IEEE80211_BAPS_BUFSIZ);
2401
2402 RT2870_DPRINTF(sc, RT2870_DEBUG_BA,
2403 "%s: received ADDBA response: associd=0x%04x, status=%d, tid=%d, bufsize=%d\n",
2404 device_get_nameunit(sc->dev), associd, status, tid, bufsize);
2405
2406 if (status == IEEE80211_STATUS_SUCCESS)
2407 {
2408 sc->tx_ampdu_sessions++;
2409
2410 RT2870_SOFTC_LOCK(sc);
2411
2412 rt2870_asic_updateprot(sc);
2413
2414 RT2870_SOFTC_UNLOCK(sc);
2415 }
2416 break;
2417
2418 /* IEEE80211_ACTION_BA_DELBA */
2419 case IEEE80211_ACTION_BA_DELBA:
2420 baparamset = LE_READ_2(frm + 2);
2421 tid = RT2870_MS(baparamset, IEEE80211_BAPS_TID);
2422
2423 RT2870_DPRINTF(sc, RT2870_DEBUG_BA,
2424 "%s: received DELBA request: associd=0x%04x, tid=%d\n",
2425 device_get_nameunit(sc->dev), associd, tid);
2426
2427 RT2870_SOFTC_LOCK(sc);
2428
2429 tmp = rt2870_io_mac_read(sc, RT2870_REG_WCID(wcid) + 4);
2430
2431 tmp &= ~(0x10000 << tid);
2432
2433 rt2870_io_mac_write(sc, RT2870_REG_WCID(wcid) + 4, tmp);
2434
2435 RT2870_SOFTC_UNLOCK(sc);
2436 break;
2437 }
2438
2439 return ret;
2440 }
2441
2442 /*
2443 * rt2870_send_action
2444 */
2445 static int rt2870_send_action(struct ieee80211_node *ni,
2446 int cat, int act, void *sa)
2447 {
2448 struct rt2870_softc *sc;
2449 struct ieee80211com *ic;
2450 struct ifnet *ifp;
2451 uint16_t associd, *args, baparamset;
2452 uint8_t wcid;
2453 int ret, tid;
2454 uint32_t tmp;
2455
2456 ic = ni->ni_ic;
2457 ifp = ic->ic_ifp;
2458 sc = ifp->if_softc;
2459
2460 ret = sc->send_action(ni, cat, act, sa);
2461
2462 if (cat != IEEE80211_ACTION_CAT_BA)
2463 return ret;
2464
2465 associd = (ni != NULL) ? ni->ni_associd : 0;
2466 wcid = RT2870_AID2WCID(associd);
2467 args = sa;
2468
2469 switch (act)
2470 {
2471 /* IEEE80211_ACTION_BA_DELBA */
2472 case IEEE80211_ACTION_BA_DELBA:
2473 baparamset = RT2870_SM(args[0], IEEE80211_DELBAPS_TID) | args[1];
2474
2475 tid = RT2870_MS(baparamset, IEEE80211_DELBAPS_TID);
2476
2477 RT2870_DPRINTF(sc, RT2870_DEBUG_BA,
2478 "%s: sending DELBA request: associd=0x%04x, tid=%d\n",
2479 device_get_nameunit(sc->dev), associd, tid);
2480
2481 RT2870_SOFTC_LOCK(sc);
2482
2483 if (RT2870_MS(baparamset, IEEE80211_DELBAPS_INIT) != IEEE80211_DELBAPS_INIT)
2484 {
2485 tmp = rt2870_io_mac_read(sc, RT2870_REG_WCID(wcid) + 4);
2486
2487 tmp &= ~(0x10000 << tid);
2488
2489 rt2870_io_mac_write(sc, RT2870_REG_WCID(wcid) + 4, tmp);
2490 }
2491 else
2492 {
2493 sc->tx_ampdu_sessions--;
2494
2495 rt2870_asic_updateprot(sc);
2496 }
2497
2498 RT2870_SOFTC_UNLOCK(sc);
2499 break;
2500 }
2501
2502 return ret;
2503 }
2504
2505 /*
2506 * rt2870_amrr_update_iter_func
2507 */
2508 static void rt2870_amrr_update_iter_func(void *arg, struct ieee80211_node *ni)
2509 {
2510 struct rt2870_softc *sc;
2511 struct ieee80211com *ic;
2512 struct ifnet *ifp;
2513 struct ieee80211vap *vap;
2514 struct rt2870_softc_vap *rvap;
2515 uint8_t wcid;
2516
2517 vap = arg;
2518 ic = vap->iv_ic;
2519 ifp = ic->ic_ifp;
2520 sc = ifp->if_softc;
2521 rvap = (struct rt2870_softc_vap *) vap;
2522
2523 /* only associated stations */
2524
2525 if ((ni->ni_vap == vap) && (ni->ni_associd != 0))
2526 {
2527 wcid = RT2870_AID2WCID(ni->ni_associd);
2528
2529 RT2870_DPRINTF(sc, RT2870_DEBUG_RATE,
2530 "%s: AMRR node: wcid=0x%02x, txcnt=%d, success=%d, retrycnt=%d\n",
2531 device_get_nameunit(sc->dev),
2532 wcid, sc->amrr_node[wcid].txcnt, sc->amrr_node[wcid].success, sc->amrr_node[wcid].retrycnt);
2533
2534 rt2870_amrr_choose(ni, &sc->amrr_node[wcid]);
2535
2536 RT2870_DPRINTF(sc, RT2870_DEBUG_RATE,
2537 "%s:%s node Tx rate: associd=0x%04x, rate=0x%02x, max rate=0x%02x\n",
2538 device_get_nameunit(sc->dev),
2539 (ni->ni_flags & IEEE80211_NODE_HT) ? " HT" : "",
2540 ni->ni_associd, ni->ni_txrate,
2541 (ni->ni_flags & IEEE80211_NODE_HT) ?
2542 (ni->ni_htrates.rs_rates[ni->ni_htrates.rs_nrates - 1] | IEEE80211_RATE_MCS) :
2543 (ni->ni_rates.rs_rates[ni->ni_rates.rs_nrates - 1] & IEEE80211_RATE_VAL));
2544 }
2545 }
2546
2547 /*
2548 * rt2870_periodic
2549 */
2550 static void rt2870_periodic(void *arg)
2551 {
2552 struct rt2870_softc *sc;
2553 struct ifnet *ifp;
2554
2555 sc = arg;
2556 ifp = sc->ifp;
2557
2558 RT2870_DPRINTF(sc, RT2870_DEBUG_PERIODIC,
2559 "%s: periodic\n",
2560 device_get_nameunit(sc->dev));
2561
2562 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
2563 return;
2564
2565 taskqueue_enqueue(sc->taskqueue, &sc->periodic_task);
2566 }
2567
2568 /*
2569 * rt2870_tx_watchdog
2570 */
2571 static void rt2870_tx_watchdog(void *arg)
2572 {
2573 struct rt2870_softc *sc;
2574 struct ifnet *ifp;
2575
2576 sc = arg;
2577 ifp = sc->ifp;
2578
2579 if (sc->tx_timer == 0)
2580 return;
2581
2582 if (--sc->tx_timer == 0)
2583 {
2584 printf("%s: Tx watchdog timeout: resetting\n",
2585 device_get_nameunit(sc->dev));
2586
2587 rt2870_stop_locked(sc);
2588 rt2870_init_locked(sc);
2589
2590 ifp->if_oerrors++;
2591
2592 sc->tx_watchdog_timeouts++;
2593 }
2594
2595 callout_reset(&sc->tx_watchdog_ch, hz, rt2870_tx_watchdog, sc);
2596 }
2597
2598 /*
2599 * rt2870_do_async
2600 */
2601 static int rt2870_do_async(struct rt2870_softc *sc,
2602 void (*cb)(struct rt2870_softc *sc, void *arg),
2603 void *arg, int len)
2604 {
2605 struct ifnet *ifp;
2606 struct rt2870_softc_cmd_ring *ring;
2607 struct rt2870_softc_cmd *cmd;
2608 int run_cmd_task;
2609
2610 ifp = sc->ifp;
2611 ring = &sc->cmd_ring;
2612
2613 RT2870_SOFTC_LOCK(sc);
2614
2615 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
2616 {
2617 RT2870_SOFTC_UNLOCK(sc);
2618 return -1;
2619 }
2620
2621 if (ring->queued >= RT2870_SOFTC_CMD_RING_CMD_COUNT)
2622 {
2623 RT2870_SOFTC_UNLOCK(sc);
2624 return -1;
2625 }
2626
2627 cmd = STAILQ_FIRST(&ring->inactive);
2628 STAILQ_REMOVE_HEAD(&ring->inactive, next);
2629
2630 cmd->cb = cb;
2631
2632 if(arg != NULL)
2633 memcpy(cmd->data, arg, len);
2634
2635 STAILQ_INSERT_TAIL(&ring->active, cmd, next);
2636 ring->queued++;
2637
2638 run_cmd_task = (ring->queued == 1);
2639
2640 RT2870_SOFTC_UNLOCK(sc);
2641
2642 if (run_cmd_task)
2643 taskqueue_enqueue(sc->taskqueue, &sc->cmd_task);
2644
2645 return 0;
2646 }
2647
2648 /*
2649 * rt2870_updateslot_cb
2650 */
2651 static void rt2870_updateslot_cb(struct rt2870_softc *sc, void *arg)
2652 {
2653 RT2870_SOFTC_LOCK(sc);
2654
2655 rt2870_asic_updateslot(sc);
2656
2657 RT2870_SOFTC_UNLOCK(sc);
2658 }
2659
2660 /*
2661 * rt2870_wme_update_cb
2662 */
2663 static void rt2870_wme_update_cb(struct rt2870_softc *sc, void *arg)
2664 {
2665 RT2870_SOFTC_LOCK(sc);
2666
2667 rt2870_asic_wme_update(sc);
2668
2669 RT2870_SOFTC_UNLOCK(sc);
2670 }
2671
2672 /*
2673 * rt2870_vap_key_set_cb
2674 */
2675 static void rt2870_vap_key_set_cb(struct rt2870_softc *sc, void *arg)
2676 {
2677 struct ieee80211com *ic;
2678 struct ifnet *ifp;
2679 struct ieee80211vap *vap;
2680 struct ieee80211_key *k;
2681 struct rt2870_cmd_argv_keyset *cmd_argv;
2682 uint16_t associd, key_base, keymode_base;
2683 uint8_t mode, vapid, wcid, iv[8];
2684 uint32_t tmp;
2685
2686 ifp = sc->ifp;
2687 ic = ifp->if_l2com;
2688 vap = TAILQ_FIRST(&ic->ic_vaps);
2689 cmd_argv = arg;
2690 k = &cmd_argv->key;
2691 associd = cmd_argv->associd;
2692
2693 switch (k->wk_cipher->ic_cipher)
2694 {
2695 case IEEE80211_CIPHER_WEP:
2696 if(k->wk_keylen < 8)
2697 mode = RT2870_REG_CIPHER_MODE_WEP40;
2698 else
2699 mode = RT2870_REG_CIPHER_MODE_WEP104;
2700 break;
2701
2702 case IEEE80211_CIPHER_TKIP:
2703 mode = RT2870_REG_CIPHER_MODE_TKIP;
2704 break;
2705
2706 case IEEE80211_CIPHER_AES_CCM:
2707 mode = RT2870_REG_CIPHER_MODE_AES_CCMP;
2708 break;
2709
2710 default:
2711 return;
2712 }
2713
2714 RT2870_DPRINTF(sc, RT2870_DEBUG_KEY,
2715 "%s: VAP key set: keyix=%d, keylen=%d, associd=0x%04x, mode=%d, group=%d\n",
2716 device_get_nameunit(sc->dev), k->wk_keyix, k->wk_keylen, associd, mode,
2717 (k->wk_flags & IEEE80211_KEY_GROUP) ? 1 : 0);
2718
2719 RT2870_SOFTC_LOCK(sc);
2720
2721 if (!(k->wk_flags & IEEE80211_KEY_GROUP))
2722 {
2723 /* install pairwise key */
2724
2725 vapid = 0;
2726 wcid = RT2870_AID2WCID(associd);
2727 key_base = RT2870_REG_PKEY(wcid);
2728
2729 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_WEP)
2730 {
2731 memset(iv, 0, 8);
2732
2733 iv[3] = (k->wk_keyix << 6);
2734 }
2735 else
2736 {
2737 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP)
2738 {
2739 iv[0] = (k->wk_keytsc >> 8);
2740 iv[1] = ((iv[0] | 0x20) & 0x7f);
2741 iv[2] = k->wk_keytsc;
2742 }
2743 else
2744 {
2745 /* AES CCMP */
2746
2747 iv[0] = k->wk_keytsc;
2748 iv[1] = k->wk_keytsc >> 8;
2749 iv[2] = 0;
2750 }
2751
2752 iv[3] = ((k->wk_keyix << 6) | IEEE80211_WEP_EXTIV);
2753 iv[4] = (k->wk_keytsc >> 16);
2754 iv[5] = (k->wk_keytsc >> 24);
2755 iv[6] = (k->wk_keytsc >> 32);
2756 iv[7] = (k->wk_keytsc >> 40);
2757
2758 RT2870_DPRINTF(sc, RT2870_DEBUG_KEY,
2759 "%s: set key: iv=%02x %02x %02x %02x %02x %02x %02x %02x\n",
2760 device_get_nameunit(sc->dev),
2761 iv[0], iv[1], iv[2], iv[3], iv[4], iv[5], iv[6], iv[7]);
2762 }
2763
2764 rt2870_io_mac_write_multi(sc, RT2870_REG_IVEIV(wcid), iv, 8);
2765
2766 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP)
2767 {
2768 rt2870_io_mac_write_multi(sc, key_base, k->wk_key, 16);
2769
2770 if (vap->iv_opmode != IEEE80211_M_HOSTAP)
2771 {
2772 rt2870_io_mac_write_multi(sc, key_base + 16, &k->wk_key[16], 8);
2773 rt2870_io_mac_write_multi(sc, key_base + 24, &k->wk_key[24], 8);
2774 }
2775 else
2776 {
2777 rt2870_io_mac_write_multi(sc, key_base + 16, &k->wk_key[24], 8);
2778 rt2870_io_mac_write_multi(sc, key_base + 24, &k->wk_key[16], 8);
2779 }
2780 }
2781 else
2782 {
2783 rt2870_io_mac_write_multi(sc, key_base, k->wk_key, k->wk_keylen);
2784 }
2785
2786 tmp = ((vapid & RT2870_REG_VAP_MASK) << RT2870_REG_VAP_SHIFT) |
2787 (mode << RT2870_REG_CIPHER_MODE_SHIFT) | RT2870_REG_PKEY_ENABLE;
2788
2789 rt2870_io_mac_write(sc, RT2870_REG_WCID_ATTR(wcid), tmp);
2790 }
2791
2792 if ((k->wk_flags & IEEE80211_KEY_GROUP) ||
2793 (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_WEP))
2794 {
2795 /* install group key */
2796
2797 vapid = 0;
2798 key_base = RT2870_REG_SKEY(vapid, k->wk_keyix);
2799 keymode_base = RT2870_REG_SKEY_MODE(vapid);
2800
2801 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP)
2802 {
2803 rt2870_io_mac_write_multi(sc, key_base, k->wk_key, 16);
2804
2805 if (vap->iv_opmode != IEEE80211_M_HOSTAP)
2806 {
2807 rt2870_io_mac_write_multi(sc, key_base + 16, &k->wk_key[16], 8);
2808 rt2870_io_mac_write_multi(sc, key_base + 24, &k->wk_key[24], 8);
2809 }
2810 else
2811 {
2812 rt2870_io_mac_write_multi(sc, key_base + 16, &k->wk_key[24], 8);
2813 rt2870_io_mac_write_multi(sc, key_base + 24, &k->wk_key[16], 8);
2814 }
2815 }
2816 else
2817 {
2818 rt2870_io_mac_write_multi(sc, key_base, k->wk_key, k->wk_keylen);
2819 }
2820
2821 tmp = rt2870_io_mac_read(sc, keymode_base);
2822
2823 tmp &= ~(0xf << (k->wk_keyix * 4 + 16 * (vapid % 2)));
2824 tmp |= (mode << (k->wk_keyix * 4 + 16 * (vapid % 2)));
2825
2826 rt2870_io_mac_write(sc, keymode_base, tmp);
2827 }
2828
2829 RT2870_SOFTC_UNLOCK(sc);
2830 }
2831
2832 /*
2833 * rt2870_vap_key_delete_cb
2834 */
2835 static void rt2870_vap_key_delete_cb(struct rt2870_softc *sc, void *arg)
2836 {
2837 struct ieee80211_key *k;
2838 struct rt2870_cmd_argv_keydelete *cmd_argv;
2839 uint16_t associd;
2840 uint8_t vapid, wcid;
2841 uint32_t tmp;
2842
2843 cmd_argv = arg;
2844 k = &cmd_argv->key;
2845 associd = cmd_argv->associd;
2846
2847 RT2870_DPRINTF(sc, RT2870_DEBUG_KEY,
2848 "%s: VAP key delete: keyix=%d, keylen=%d, associd=0x%04x, group=%d\n",
2849 device_get_nameunit(sc->dev), k->wk_keyix, k->wk_keylen, associd,
2850 (k->wk_flags & IEEE80211_KEY_GROUP) ? 1 : 0);
2851
2852 RT2870_SOFTC_LOCK(sc);
2853
2854 if (!(k->wk_flags & IEEE80211_KEY_GROUP))
2855 {
2856 /* remove pairwise key */
2857
2858 vapid = 0;
2859 wcid = RT2870_AID2WCID(associd);
2860
2861 tmp = ((vapid & RT2870_REG_VAP_MASK) << RT2870_REG_VAP_SHIFT) |
2862 (RT2870_REG_CIPHER_MODE_NONE << RT2870_REG_CIPHER_MODE_SHIFT) | RT2870_REG_PKEY_ENABLE;
2863
2864 rt2870_io_mac_write(sc, RT2870_REG_WCID_ATTR(wcid), tmp);
2865 }
2866 else
2867 {
2868 /* remove group key */
2869
2870 vapid = 0;
2871
2872 tmp = rt2870_io_mac_read(sc, RT2870_REG_SKEY_MODE(vapid));
2873
2874 tmp &= ~(0xf << (k->wk_keyix * 4 + 16 * (vapid % 2)));
2875 tmp |= (RT2870_REG_CIPHER_MODE_NONE << (k->wk_keyix * 4 + 16 * (vapid % 2)));
2876
2877 rt2870_io_mac_write(sc, RT2870_REG_SKEY_MODE(vapid), tmp);
2878 }
2879
2880 RT2870_SOFTC_UNLOCK(sc);
2881 }
2882
2883 /*
2884 * rt2870_vap_update_beacon_cb
2885 */
2886 static void rt2870_vap_update_beacon_cb(struct rt2870_softc *sc, void *arg)
2887 {
2888 struct ifnet *ifp;
2889 struct ieee80211com *ic;
2890 struct ieee80211vap *vap;
2891
2892 ifp = sc->ifp;
2893 ic = ifp->if_l2com;
2894 vap = TAILQ_FIRST(&ic->ic_vaps);
2895
2896 if (vap == NULL)
2897 return;
2898
2899 RT2870_SOFTC_LOCK(sc);
2900
2901 rt2870_asic_update_beacon(sc, vap);
2902
2903 RT2870_SOFTC_UNLOCK(sc);
2904 }
2905
2906 /*
2907 * rt2870_asic_set_bssid
2908 */
2909 static void rt2870_asic_set_bssid(struct rt2870_softc *sc,
2910 const uint8_t *bssid)
2911 {
2912 uint32_t tmp;
2913
2914 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
2915 "%s: set bssid: bssid=%s\n",
2916 device_get_nameunit(sc->dev),
2917 ether_sprintf(bssid));
2918
2919 tmp = bssid[0] | (bssid[1]) << 8 | (bssid[2] << 16) | (bssid[3] << 24);
2920
2921 rt2870_io_mac_write(sc, RT2870_REG_BSSID_DW0, tmp);
2922
2923 tmp = bssid[4] | (bssid[5] << 8);
2924
2925 rt2870_io_mac_write(sc, RT2870_REG_BSSID_DW1, tmp);
2926 }
2927
2928 /*
2929 * rt2870_asic_set_macaddr
2930 */
2931 static void rt2870_asic_set_macaddr(struct rt2870_softc *sc,
2932 const uint8_t *addr)
2933 {
2934 uint32_t tmp;
2935
2936 tmp = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
2937
2938 rt2870_io_mac_write(sc, RT2870_REG_ADDR_DW0, tmp);
2939
2940 tmp = addr[4] | (addr[5] << 8);
2941
2942 rt2870_io_mac_write(sc, RT2870_REG_ADDR_DW1, tmp);
2943 }
2944
2945 /*
2946 * rt2870_asic_enable_tsf_sync
2947 */
2948 static void rt2870_asic_enable_tsf_sync(struct rt2870_softc *sc)
2949 {
2950 struct ifnet *ifp;
2951 struct ieee80211com *ic;
2952 struct ieee80211vap *vap;
2953 uint32_t tmp;
2954
2955 ifp = sc->ifp;
2956 ic = ifp->if_l2com;
2957 vap = TAILQ_FIRST(&ic->ic_vaps);
2958
2959 RT2870_DPRINTF(sc, RT2870_DEBUG_BEACON,
2960 "%s: enabling TSF\n",
2961 device_get_nameunit(sc->dev));
2962
2963 tmp = rt2870_io_mac_read(sc, RT2870_REG_BCN_TIME_CFG);
2964
2965 tmp &= ~0x1fffff;
2966 tmp |= vap->iv_bss->ni_intval * 16;
2967 tmp |= (RT2870_REG_TSF_TIMER_ENABLE | RT2870_REG_TBTT_TIMER_ENABLE);
2968
2969 if (vap->iv_opmode == IEEE80211_M_STA)
2970 {
2971 tmp |= (RT2870_REG_TSF_SYNC_MODE_STA << RT2870_REG_TSF_SYNC_MODE_SHIFT);
2972 }
2973 else if (vap->iv_opmode == IEEE80211_M_IBSS)
2974 {
2975 tmp |= RT2870_REG_BCN_TX_ENABLE;
2976 tmp |= (RT2870_REG_TSF_SYNC_MODE_IBSS << RT2870_REG_TSF_SYNC_MODE_SHIFT);
2977 }
2978 else if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2979 {
2980 tmp |= RT2870_REG_BCN_TX_ENABLE;
2981 tmp |= (RT2870_REG_TSF_SYNC_MODE_HOSTAP << RT2870_REG_TSF_SYNC_MODE_SHIFT);
2982 }
2983
2984 rt2870_io_mac_write(sc, RT2870_REG_BCN_TIME_CFG, tmp);
2985 }
2986
2987 /*
2988 * rt2870_asic_disable_tsf_sync
2989 */
2990 static void rt2870_asic_disable_tsf_sync(struct rt2870_softc *sc)
2991 {
2992 uint32_t tmp;
2993
2994 RT2870_DPRINTF(sc, RT2870_DEBUG_BEACON,
2995 "%s: disabling TSF\n",
2996 device_get_nameunit(sc->dev));
2997
2998 tmp = rt2870_io_mac_read(sc, RT2870_REG_BCN_TIME_CFG);
2999
3000 tmp &= ~(RT2870_REG_BCN_TX_ENABLE |
3001 RT2870_REG_TSF_TIMER_ENABLE |
3002 RT2870_REG_TBTT_TIMER_ENABLE);
3003
3004 tmp &= ~(RT2870_REG_TSF_SYNC_MODE_MASK << RT2870_REG_TSF_SYNC_MODE_SHIFT);
3005 tmp |= (RT2870_REG_TSF_SYNC_MODE_DISABLE << RT2870_REG_TSF_SYNC_MODE_SHIFT);
3006
3007 rt2870_io_mac_write(sc, RT2870_REG_BCN_TIME_CFG, tmp);
3008 }
3009
3010 /*
3011 * rt2870_asic_enable_mrr
3012 */
3013 static void rt2870_asic_enable_mrr(struct rt2870_softc *sc)
3014 {
3015 #define CCK(mcs) (mcs)
3016 #define OFDM(mcs) ((1 << 3) | (mcs))
3017 #define HT(mcs) (mcs)
3018
3019 rt2870_io_mac_write(sc, RT2870_REG_TX_LG_FBK_CFG0,
3020 (OFDM(6) << 28) | /* 54 -> 48 */
3021 (OFDM(5) << 24) | /* 48 -> 36 */
3022 (OFDM(4) << 20) | /* 36 -> 24 */
3023 (OFDM(3) << 16) | /* 24 -> 18 */
3024 (OFDM(2) << 12) | /* 18 -> 12 */
3025 (OFDM(1) << 8) | /* 12 -> 9 */
3026 (OFDM(0) << 4) | /* 9 -> 6 */
3027 OFDM(0)); /* 6 -> 6 */
3028
3029 rt2870_io_mac_write(sc, RT2870_REG_TX_LG_FBK_CFG1,
3030 (CCK(2) << 12) | /* 11 -> 5.5 */
3031 (CCK(1) << 8) | /* 5.5 -> 2 */
3032 (CCK(0) << 4) | /* 2 -> 1 */
3033 CCK(0)); /* 1 -> 1 */
3034
3035 rt2870_io_mac_write(sc, RT2870_REG_TX_HT_FBK_CFG0,
3036 (HT(6) << 28) |
3037 (HT(5) << 24) |
3038 (HT(4) << 20) |
3039 (HT(3) << 16) |
3040 (HT(2) << 12) |
3041 (HT(1) << 8) |
3042 (HT(0) << 4) |
3043 HT(0));
3044
3045 rt2870_io_mac_write(sc, RT2870_REG_TX_HT_FBK_CFG1,
3046 (HT(14) << 28) |
3047 (HT(13) << 24) |
3048 (HT(12) << 20) |
3049 (HT(11) << 16) |
3050 (HT(10) << 12) |
3051 (HT(9) << 8) |
3052 (HT(8) << 4) |
3053 HT(7));
3054
3055 #undef HT
3056 #undef OFDM
3057 #undef CCK
3058 }
3059
3060 /*
3061 * rt2870_asic_set_txpreamble
3062 */
3063 static void rt2870_asic_set_txpreamble(struct rt2870_softc *sc)
3064 {
3065 struct ifnet *ifp;
3066 struct ieee80211com *ic;
3067 uint32_t tmp;
3068
3069 ifp = sc->ifp;
3070 ic = ifp->if_l2com;
3071
3072 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
3073 "%s: %s short Tx preamble\n",
3074 device_get_nameunit(sc->dev),
3075 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "enabling" : "disabling");
3076
3077 tmp = rt2870_io_mac_read(sc, RT2870_REG_AUTO_RSP_CFG);
3078
3079 tmp &= ~RT2870_REG_CCK_SHORT_ENABLE;
3080
3081 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
3082 tmp |= RT2870_REG_CCK_SHORT_ENABLE;
3083
3084 rt2870_io_mac_write(sc, RT2870_REG_AUTO_RSP_CFG, tmp);
3085 }
3086
3087 /*
3088 * rt2870_asic_set_basicrates
3089 */
3090 static void rt2870_asic_set_basicrates(struct rt2870_softc *sc)
3091 {
3092 struct ifnet *ifp;
3093 struct ieee80211com *ic;
3094
3095 ifp = sc->ifp;
3096 ic = ifp->if_l2com;
3097
3098 if (ic->ic_curmode == IEEE80211_MODE_11B)
3099 rt2870_io_mac_write(sc, RT2870_REG_LEGACY_BASIC_RATE, 0x3);
3100 else if (ic->ic_curmode == IEEE80211_MODE_11A)
3101 rt2870_io_mac_write(sc, RT2870_REG_LEGACY_BASIC_RATE, 0x150);
3102 else
3103 rt2870_io_mac_write(sc, RT2870_REG_LEGACY_BASIC_RATE, 0x15f);
3104 }
3105
3106 /*
3107 * rt2870_asic_update_rtsthreshold
3108 */
3109 static void rt2870_asic_update_rtsthreshold(struct rt2870_softc *sc)
3110 {
3111 struct ifnet *ifp;
3112 struct ieee80211com *ic;
3113 struct ieee80211vap *vap;
3114 uint32_t tmp;
3115 uint16_t threshold;
3116
3117 ifp = sc->ifp;
3118 ic = ifp->if_l2com;
3119 vap = TAILQ_FIRST(&ic->ic_vaps);
3120
3121 RT2870_DPRINTF(sc, RT2870_DEBUG_PROT,
3122 "%s: updating RTS threshold: %d\n",
3123 device_get_nameunit(sc->dev), vap->iv_rtsthreshold);
3124
3125 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_RTS_CFG);
3126
3127 tmp &= ~(RT2870_REG_TX_RTS_THRESHOLD_MASK << RT2870_REG_TX_RTS_THRESHOLD_SHIFT);
3128
3129 threshold = (vap->iv_rtsthreshold < IEEE80211_RTS_MAX) ?
3130 vap->iv_rtsthreshold : 0x1000;
3131
3132 tmp |= ((threshold & RT2870_REG_TX_RTS_THRESHOLD_MASK) <<
3133 RT2870_REG_TX_RTS_THRESHOLD_SHIFT);
3134
3135 rt2870_io_mac_write(sc, RT2870_REG_TX_RTS_CFG, tmp);
3136 }
3137
3138 /*
3139 * rt2870_asic_update_txpower
3140 */
3141 static void rt2870_asic_update_txpower(struct rt2870_softc *sc)
3142 {
3143 struct ifnet *ifp;
3144 struct ieee80211com *ic;
3145 uint32_t *txpow_rate;
3146 int8_t delta;
3147 uint8_t val;
3148 uint32_t tmp;
3149 int i;
3150
3151 ifp = sc->ifp;
3152 ic = ifp->if_l2com;
3153
3154 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
3155 "%s: updating Tx power: %d\n",
3156 device_get_nameunit(sc->dev), ic->ic_txpowlimit);
3157
3158 if (!IEEE80211_IS_CHAN_HT40(ic->ic_curchan))
3159 {
3160 txpow_rate = sc->txpow_rate_20mhz;
3161 }
3162 else
3163 {
3164 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan))
3165 txpow_rate = sc->txpow_rate_40mhz_2ghz;
3166 else
3167 txpow_rate = sc->txpow_rate_40mhz_5ghz;
3168 }
3169
3170 delta = 0;
3171
3172 val = rt2870_io_bbp_read(sc, 1);
3173 val &= 0xfc;
3174
3175 if (ic->ic_txpowlimit > 90)
3176 {
3177 /* do nothing */
3178 }
3179 else if (ic->ic_txpowlimit > 60)
3180 {
3181 delta -= 1;
3182 }
3183 else if (ic->ic_txpowlimit > 30)
3184 {
3185 delta -= 3;
3186 }
3187 else if (ic->ic_txpowlimit > 15)
3188 {
3189 val |= 0x1;
3190 }
3191 else if (ic->ic_txpowlimit > 9)
3192 {
3193 val |= 0x1;
3194 delta -= 3;
3195 }
3196 else
3197 {
3198 val |= 0x2;
3199 }
3200
3201 rt2870_io_bbp_write(sc, 1, val);
3202
3203 for (i = 0; i < RT2870_SOFTC_TXPOW_RATE_COUNT; i++)
3204 {
3205 if (txpow_rate[i] == 0xffffffff)
3206 continue;
3207
3208 tmp = rt2870_read_eeprom_txpow_rate_add_delta(txpow_rate[i], delta);
3209
3210 rt2870_io_mac_write(sc, RT2870_REG_TX_PWR_CFG(i), tmp);
3211 }
3212 }
3213
3214 /*
3215 * rt2870_asic_update_promisc
3216 */
3217 static void rt2870_asic_update_promisc(struct rt2870_softc *sc)
3218 {
3219 struct ifnet *ifp;
3220 uint32_t tmp;
3221
3222 ifp = sc->ifp;
3223
3224 printf("%s: %s promiscuous mode\n",
3225 device_get_nameunit(sc->dev),
3226 (ifp->if_flags & IFF_PROMISC) ? "entering" : "leaving");
3227
3228 tmp = rt2870_io_mac_read(sc, RT2870_REG_RX_FILTER_CFG);
3229
3230 tmp &= ~RT2870_REG_RX_FILTER_DROP_UC_NOME;
3231
3232 if (!(ifp->if_flags & IFF_PROMISC))
3233 tmp |= RT2870_REG_RX_FILTER_DROP_UC_NOME;
3234
3235 rt2870_io_mac_write(sc, RT2870_REG_RX_FILTER_CFG, tmp);
3236 }
3237
3238 /*
3239 * rt2870_asic_updateprot
3240 */
3241 static void rt2870_asic_updateprot(struct rt2870_softc *sc)
3242 {
3243 struct ifnet *ifp;
3244 struct ieee80211com *ic;
3245 struct ieee80211vap *vap;
3246 uint32_t cck_prot, ofdm_prot, mm20_prot, mm40_prot, gf20_prot, gf40_prot;
3247 uint8_t htopmode;
3248 enum ieee80211_protmode htprotmode;
3249
3250 ifp = sc->ifp;
3251 ic = ifp->if_l2com;
3252 vap = TAILQ_FIRST(&ic->ic_vaps);
3253
3254 /* CCK frame protection */
3255
3256 cck_prot = RT2870_REG_RTSTH_ENABLE | RT2870_REG_PROT_NAV_SHORT |
3257 RT2870_REG_TXOP_ALLOW_ALL | RT2870_REG_PROT_CTRL_NONE;
3258
3259 /* set up protection frame phy mode and rate (MCS code) */
3260
3261 if (ic->ic_curmode == IEEE80211_MODE_11A)
3262 cck_prot |= (RT2870_REG_PROT_PHYMODE_OFDM << RT2870_REG_PROT_PHYMODE_SHIFT) |
3263 (0 << RT2870_REG_PROT_MCS_SHIFT);
3264 else
3265 cck_prot |= ((RT2870_REG_PROT_PHYMODE_CCK << RT2870_REG_PROT_PHYMODE_SHIFT) |
3266 (3 << RT2870_REG_PROT_MCS_SHIFT));
3267
3268 rt2870_io_mac_write(sc, RT2870_REG_TX_CCK_PROT_CFG, cck_prot);
3269
3270 /* OFDM frame protection */
3271
3272 ofdm_prot = RT2870_REG_RTSTH_ENABLE | RT2870_REG_PROT_NAV_SHORT |
3273 RT2870_REG_TXOP_ALLOW_ALL;
3274
3275 if (ic->ic_flags & IEEE80211_F_USEPROT)
3276 {
3277 RT2870_DPRINTF(sc, RT2870_DEBUG_PROT,
3278 "%s: updating protection mode: b/g protection mode=%s\n",
3279 device_get_nameunit(sc->dev),
3280 (ic->ic_protmode == IEEE80211_PROT_RTSCTS) ? "RTS/CTS" :
3281 ((ic->ic_protmode == IEEE80211_PROT_CTSONLY) ? "CTS-to-self" : "none"));
3282
3283 if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
3284 ofdm_prot |= RT2870_REG_PROT_CTRL_RTS_CTS;
3285 else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
3286 ofdm_prot |= RT2870_REG_PROT_CTRL_CTS;
3287 else
3288 ofdm_prot |= RT2870_REG_PROT_CTRL_NONE;
3289 }
3290 else
3291 {
3292 RT2870_DPRINTF(sc, RT2870_DEBUG_PROT,
3293 "%s: updating protection mode: b/g protection mode=%s\n",
3294 device_get_nameunit(sc->dev), "none");
3295
3296 ofdm_prot |= RT2870_REG_PROT_CTRL_NONE;
3297 }
3298
3299 rt2870_io_mac_write(sc, RT2870_REG_TX_OFDM_PROT_CFG, ofdm_prot);
3300
3301 /* HT frame protection */
3302
3303 if ((vap->iv_opmode == IEEE80211_M_STA) && (vap->iv_state == IEEE80211_S_RUN))
3304 htopmode = vap->iv_bss->ni_htopmode;
3305 else
3306 htopmode = ic->ic_curhtprotmode;
3307
3308 htprotmode = ic->ic_htprotmode;
3309
3310 /* force HT mixed mode and RTS/CTS protection if A-MPDU Tx aggregation is enabled */
3311
3312 if (sc->tx_ampdu_sessions > 0)
3313 {
3314 RT2870_DPRINTF(sc, RT2870_DEBUG_PROT,
3315 "%s: updating protection mode: forcing HT mixed mode and RTS/CTS protection\n",
3316 device_get_nameunit(sc->dev));
3317
3318 htopmode = IEEE80211_HTINFO_OPMODE_MIXED;
3319 htprotmode = IEEE80211_PROT_RTSCTS;
3320 }
3321
3322 RT2870_DPRINTF(sc, RT2870_DEBUG_PROT,
3323 "%s: updating protection mode: HT operation mode=0x%02x, protection mode=%s\n",
3324 device_get_nameunit(sc->dev),
3325 htopmode & IEEE80211_HTINFO_OPMODE,
3326 (htprotmode == IEEE80211_PROT_RTSCTS) ? "RTS/CTS" :
3327 ((htprotmode == IEEE80211_PROT_CTSONLY) ? "CTS-to-self" : "none"));
3328
3329 switch (htopmode & IEEE80211_HTINFO_OPMODE)
3330 {
3331 /* IEEE80211_HTINFO_OPMODE_HT20PR */
3332 case IEEE80211_HTINFO_OPMODE_HT20PR:
3333 mm20_prot = RT2870_REG_PROT_NAV_SHORT | RT2870_REG_PROT_CTRL_NONE |
3334 RT2870_REG_TXOP_ALLOW_CCK | RT2870_REG_TXOP_ALLOW_OFDM |
3335 RT2870_REG_TXOP_ALLOW_MM20 | RT2870_REG_TXOP_ALLOW_GF20 |
3336 (RT2870_REG_PROT_PHYMODE_OFDM << RT2870_REG_PROT_PHYMODE_SHIFT) |
3337 (4 << RT2870_REG_PROT_MCS_SHIFT);
3338
3339 gf20_prot = mm20_prot;
3340
3341 mm40_prot = RT2870_REG_PROT_NAV_SHORT | RT2870_REG_PROT_CTRL_NONE |
3342 RT2870_REG_TXOP_ALLOW_ALL |
3343 (RT2870_REG_PROT_PHYMODE_OFDM << RT2870_REG_PROT_PHYMODE_SHIFT) |
3344 (0x84 << RT2870_REG_PROT_MCS_SHIFT);
3345
3346 if (htprotmode == IEEE80211_PROT_RTSCTS)
3347 mm40_prot |= RT2870_REG_PROT_CTRL_RTS_CTS;
3348 else if (htprotmode == IEEE80211_PROT_CTSONLY)
3349 mm40_prot |= RT2870_REG_PROT_CTRL_CTS;
3350 else
3351 mm40_prot |= RT2870_REG_PROT_CTRL_NONE;
3352
3353 gf40_prot = mm40_prot;
3354 break;
3355
3356 /* IEEE80211_HTINFO_OPMODE_MIXED */
3357 case IEEE80211_HTINFO_OPMODE_MIXED:
3358 mm20_prot = RT2870_REG_PROT_NAV_SHORT |
3359 RT2870_REG_TXOP_ALLOW_CCK | RT2870_REG_TXOP_ALLOW_OFDM |
3360 RT2870_REG_TXOP_ALLOW_MM20 | RT2870_REG_TXOP_ALLOW_GF20;
3361
3362 if (ic->ic_flags & IEEE80211_F_USEPROT)
3363 mm20_prot |= (RT2870_REG_PROT_PHYMODE_CCK << RT2870_REG_PROT_PHYMODE_SHIFT) |
3364 (3 << RT2870_REG_PROT_MCS_SHIFT);
3365 else
3366 mm20_prot |= (RT2870_REG_PROT_PHYMODE_OFDM << RT2870_REG_PROT_PHYMODE_SHIFT) |
3367 (4 << RT2870_REG_PROT_MCS_SHIFT);
3368
3369 if (htprotmode == IEEE80211_PROT_RTSCTS)
3370 mm20_prot |= RT2870_REG_PROT_CTRL_RTS_CTS;
3371 else if (htprotmode == IEEE80211_PROT_CTSONLY)
3372 mm20_prot |= RT2870_REG_PROT_CTRL_CTS;
3373 else
3374 mm20_prot |= RT2870_REG_PROT_CTRL_NONE;
3375
3376 gf20_prot = mm20_prot;
3377
3378 mm40_prot = RT2870_REG_PROT_NAV_SHORT | RT2870_REG_TXOP_ALLOW_ALL;
3379
3380 if (ic->ic_flags & IEEE80211_F_USEPROT)
3381 mm40_prot |= (RT2870_REG_PROT_PHYMODE_CCK << RT2870_REG_PROT_PHYMODE_SHIFT) |
3382 (3 << RT2870_REG_PROT_MCS_SHIFT);
3383 else
3384 mm40_prot |= (RT2870_REG_PROT_PHYMODE_OFDM << RT2870_REG_PROT_PHYMODE_SHIFT) |
3385 (0x84 << RT2870_REG_PROT_MCS_SHIFT);
3386
3387 if (htprotmode == IEEE80211_PROT_RTSCTS)
3388 mm40_prot |= RT2870_REG_PROT_CTRL_RTS_CTS;
3389 else if (htprotmode == IEEE80211_PROT_CTSONLY)
3390 mm40_prot |= RT2870_REG_PROT_CTRL_CTS;
3391 else
3392 mm40_prot |= RT2870_REG_PROT_CTRL_NONE;
3393
3394 gf40_prot = mm40_prot;
3395 break;
3396
3397 /*
3398 * IEEE80211_HTINFO_OPMODE_PURE
3399 * IEEE80211_HTINFO_OPMODE_PROTOPT
3400 */
3401 case IEEE80211_HTINFO_OPMODE_PURE:
3402 case IEEE80211_HTINFO_OPMODE_PROTOPT:
3403 default:
3404 mm20_prot = RT2870_REG_PROT_NAV_SHORT | RT2870_REG_PROT_CTRL_NONE |
3405 RT2870_REG_TXOP_ALLOW_CCK | RT2870_REG_TXOP_ALLOW_OFDM |
3406 RT2870_REG_TXOP_ALLOW_MM20 | RT2870_REG_TXOP_ALLOW_GF20 |
3407 (RT2870_REG_PROT_PHYMODE_OFDM << RT2870_REG_PROT_PHYMODE_SHIFT) |
3408 (4 << RT2870_REG_PROT_MCS_SHIFT);
3409
3410 gf20_prot = mm20_prot;
3411
3412 mm40_prot = RT2870_REG_PROT_NAV_SHORT | RT2870_REG_PROT_CTRL_NONE |
3413 RT2870_REG_TXOP_ALLOW_ALL |
3414 (RT2870_REG_PROT_PHYMODE_OFDM << RT2870_REG_PROT_PHYMODE_SHIFT) |
3415 (0x84 << RT2870_REG_PROT_MCS_SHIFT);
3416
3417 gf40_prot = mm40_prot;
3418 break;
3419 }
3420
3421 rt2870_io_mac_write(sc, RT2870_REG_TX_MM20_PROT_CFG, mm20_prot);
3422 rt2870_io_mac_write(sc, RT2870_REG_TX_MM40_PROT_CFG, mm40_prot);
3423 rt2870_io_mac_write(sc, RT2870_REG_TX_GF20_PROT_CFG, gf20_prot);
3424 rt2870_io_mac_write(sc, RT2870_REG_TX_GF40_PROT_CFG, gf40_prot);
3425 }
3426
3427 /*
3428 * rt2870_asic_updateslot
3429 */
3430 static void rt2870_asic_updateslot(struct rt2870_softc *sc)
3431 {
3432 struct ifnet *ifp;
3433 struct ieee80211com *ic;
3434 uint32_t tmp;
3435
3436 ifp = sc->ifp;
3437 ic = ifp->if_l2com;
3438
3439 RT2870_DPRINTF(sc, RT2870_DEBUG_STATE,
3440 "%s: %s short slot time\n",
3441 device_get_nameunit(sc->dev),
3442 (ic->ic_flags & IEEE80211_F_SHSLOT) ? "enabling" : "disabling");
3443
3444 tmp = rt2870_io_mac_read(sc, RT2870_REG_BKOFF_SLOT_CFG);
3445
3446 tmp &= ~0xff;
3447 tmp |= (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
3448
3449 rt2870_io_mac_write(sc, RT2870_REG_BKOFF_SLOT_CFG, tmp);
3450 }
3451
3452 /*
3453 * rt2870_asic_wme_update
3454 */
3455 static void rt2870_asic_wme_update(struct rt2870_softc *sc)
3456 {
3457 struct ifnet *ifp;
3458 struct ieee80211com *ic;
3459 struct ieee80211_wme_state *wme;
3460 const struct wmeParams *wmep;
3461 int i;
3462
3463 ifp = sc->ifp;
3464 ic = ifp->if_l2com;
3465 wme = &ic->ic_wme;
3466 wmep = wme->wme_chanParams.cap_wmeParams;
3467
3468 RT2870_DPRINTF(sc, RT2870_DEBUG_WME,
3469 "%s: wme update: WME_AC_VO=%d/%d/%d/%d, WME_AC_VI=%d/%d/%d/%d, "
3470 "WME_AC_BK=%d/%d/%d/%d, WME_AC_BE=%d/%d/%d/%d\n",
3471 device_get_nameunit(sc->dev),
3472 wmep[WME_AC_VO].wmep_aifsn,
3473 wmep[WME_AC_VO].wmep_logcwmin, wmep[WME_AC_VO].wmep_logcwmax,
3474 wmep[WME_AC_VO].wmep_txopLimit,
3475 wmep[WME_AC_VI].wmep_aifsn,
3476 wmep[WME_AC_VI].wmep_logcwmin, wmep[WME_AC_VI].wmep_logcwmax,
3477 wmep[WME_AC_VI].wmep_txopLimit,
3478 wmep[WME_AC_BK].wmep_aifsn,
3479 wmep[WME_AC_BK].wmep_logcwmin, wmep[WME_AC_BK].wmep_logcwmax,
3480 wmep[WME_AC_BK].wmep_txopLimit,
3481 wmep[WME_AC_BE].wmep_aifsn,
3482 wmep[WME_AC_BE].wmep_logcwmin, wmep[WME_AC_BE].wmep_logcwmax,
3483 wmep[WME_AC_BE].wmep_txopLimit);
3484
3485 for (i = 0; i < WME_NUM_AC; i++)
3486 rt2870_io_mac_write(sc, RT2870_REG_TX_EDCA_AC_CFG(i),
3487 (wmep[i].wmep_logcwmax << 16) | (wmep[i].wmep_logcwmin << 12) |
3488 (wmep[i].wmep_aifsn << 8) | wmep[i].wmep_txopLimit);
3489
3490 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WMM_AIFSN_CFG,
3491 (wmep[WME_AC_VO].wmep_aifsn << 12) | (wmep[WME_AC_VI].wmep_aifsn << 8) |
3492 (wmep[WME_AC_BK].wmep_aifsn << 4) | wmep[WME_AC_BE].wmep_aifsn);
3493
3494 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WMM_CWMIN_CFG,
3495 (wmep[WME_AC_VO].wmep_logcwmin << 12) | (wmep[WME_AC_VI].wmep_logcwmin << 8) |
3496 (wmep[WME_AC_BK].wmep_logcwmin << 4) | wmep[WME_AC_BE].wmep_logcwmin);
3497
3498 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WMM_CWMAX_CFG,
3499 (wmep[WME_AC_VO].wmep_logcwmax << 12) | (wmep[WME_AC_VI].wmep_logcwmax << 8) |
3500 (wmep[WME_AC_BK].wmep_logcwmax << 4) | wmep[WME_AC_BE].wmep_logcwmax);
3501
3502 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WMM_TXOP0_CFG,
3503 (wmep[WME_AC_BK].wmep_txopLimit << 16) | wmep[WME_AC_BE].wmep_txopLimit);
3504
3505 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WMM_TXOP1_CFG,
3506 (wmep[WME_AC_VO].wmep_txopLimit << 16) | wmep[WME_AC_VI].wmep_txopLimit);
3507 }
3508
3509 /*
3510 * rt2870_asic_update_beacon
3511 */
3512 static int rt2870_asic_update_beacon(struct rt2870_softc *sc,
3513 struct ieee80211vap *vap)
3514 {
3515 struct ifnet *ifp;
3516 struct ieee80211com *ic;
3517 struct rt2870_softc_vap *rvap;
3518 const struct ieee80211_txparam *tp;
3519 struct mbuf *m;
3520 struct rt2870_txwi txwi;
3521 uint8_t rate, mcs;
3522 uint32_t tmp;
3523
3524 ifp = sc->ifp;
3525 ic = ifp->if_l2com;
3526 rvap = (struct rt2870_softc_vap *) vap;
3527 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
3528
3529 m = ieee80211_beacon_alloc(vap->iv_bss, &rvap->beacon_offsets);
3530 if (m == NULL)
3531 return ENOMEM;
3532
3533 rate = tp->mgmtrate;
3534 mcs = rt2870_rate2mcs(rate);
3535
3536 memset(&txwi, 0, sizeof(struct rt2870_txwi));
3537
3538 txwi.wcid = 0xff;
3539 txwi.pid_mpdu_len = ((htole16(m->m_pkthdr.len) & RT2870_TXWI_MPDU_LEN_MASK) <<
3540 RT2870_TXWI_MPDU_LEN_SHIFT);
3541 txwi.txop = (RT2870_TXWI_TXOP_HT << RT2870_TXWI_TXOP_SHIFT);
3542 txwi.mpdu_density_flags |=
3543 (RT2870_TXWI_FLAGS_TS << RT2870_TXWI_FLAGS_SHIFT);
3544 txwi.bawin_size_xflags |=
3545 (RT2870_TXWI_XFLAGS_NSEQ << RT2870_TXWI_XFLAGS_SHIFT);
3546
3547 if (ieee80211_rate2phytype(ic->ic_rt, rate) != IEEE80211_T_OFDM)
3548 {
3549 txwi.phymode_ifs_stbc_shortgi =
3550 (RT2870_TXWI_PHYMODE_CCK << RT2870_TXWI_PHYMODE_SHIFT);
3551
3552 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
3553 mcs |= RT2870_TXWI_MCS_SHOTPRE;
3554 }
3555 else
3556 {
3557 txwi.phymode_ifs_stbc_shortgi =
3558 (RT2870_TXWI_PHYMODE_OFDM << RT2870_TXWI_PHYMODE_SHIFT);
3559 }
3560
3561 txwi.bw_mcs = (RT2870_TXWI_BW_20 << RT2870_TXWI_BW_SHIFT) |
3562 ((mcs & RT2870_TXWI_MCS_MASK) << RT2870_TXWI_MCS_SHIFT);
3563
3564 /* disable temporarily TSF sync */
3565
3566 tmp = rt2870_io_mac_read(sc, RT2870_REG_BCN_TIME_CFG);
3567
3568 tmp &= ~(RT2870_REG_BCN_TX_ENABLE |
3569 RT2870_REG_TSF_TIMER_ENABLE |
3570 RT2870_REG_TBTT_TIMER_ENABLE);
3571
3572 rt2870_io_mac_write(sc, RT2870_REG_BCN_TIME_CFG, tmp);
3573
3574 /* write Tx wireless info and beacon frame to on-chip memory */
3575
3576 rt2870_io_mac_write_multi(sc, RT2870_REG_BEACON_BASE(0),
3577 &txwi, sizeof(struct rt2870_txwi));
3578
3579 rt2870_io_mac_write_multi(sc, RT2870_REG_BEACON_BASE(0) + sizeof(struct rt2870_txwi),
3580 mtod(m, uint8_t *), m->m_pkthdr.len);
3581
3582 /* enable again TSF sync */
3583
3584 tmp = rt2870_io_mac_read(sc, RT2870_REG_BCN_TIME_CFG);
3585
3586 tmp |= (RT2870_REG_BCN_TX_ENABLE |
3587 RT2870_REG_TSF_TIMER_ENABLE |
3588 RT2870_REG_TBTT_TIMER_ENABLE);
3589
3590 rt2870_io_mac_write(sc, RT2870_REG_BCN_TIME_CFG, tmp);
3591
3592 m_freem(m);
3593
3594 return 0;
3595 }
3596
3597 /*
3598 * rt2870_asic_clear_keytables
3599 */
3600 static void rt2870_asic_clear_keytables(struct rt2870_softc *sc)
3601 {
3602 int i;
3603
3604 /* clear Rx WCID search table (entries = 256, entry size = 8) */
3605
3606 for (i = 0; i < 256; i++)
3607 {
3608 rt2870_io_mac_write(sc, RT2870_REG_WCID(i), 0xffffffff);
3609 rt2870_io_mac_write(sc, RT2870_REG_WCID(i) + 4, 0x0000ffff);
3610 }
3611
3612 /* clear WCID attribute table (entries = 256, entry size = 4) */
3613
3614 rt2870_io_mac_set_region_4(sc, RT2870_REG_WCID_ATTR(0), 0, 256);
3615
3616 /* clear IV/EIV table (entries = 256, entry size = 8) */
3617
3618 rt2870_io_mac_set_region_4(sc, RT2870_REG_IVEIV(0), 0, 2 * 256);
3619
3620 /* clear pairwise key table (entries = 256, entry size = 32) */
3621
3622 rt2870_io_mac_set_region_4(sc, RT2870_REG_PKEY(0), 0, 8 * 256);
3623
3624 /* clear shared key table (entries = 32, entry size = 32) */
3625
3626 rt2870_io_mac_set_region_4(sc, RT2870_REG_SKEY(0, 0), 0, 8 * 32);
3627
3628 /* clear shared key mode (entries = 32, entry size = 2) */
3629
3630 rt2870_io_mac_set_region_4(sc, RT2870_REG_SKEY_MODE(0), 0, 16);
3631 }
3632
3633 /*
3634 * rt2870_rxrate
3635 */
3636 static uint8_t rt2870_rxrate(struct rt2870_rxwi *rxwi)
3637 {
3638 uint8_t mcs, phymode;
3639 uint8_t rate;
3640
3641 mcs = (rxwi->bw_mcs >> RT2870_RXWI_MCS_SHIFT) & RT2870_RXWI_MCS_MASK;
3642 phymode = (rxwi->phymode_stbc_shortgi >> RT2870_RXWI_PHYMODE_SHIFT) &
3643 RT2870_RXWI_PHYMODE_MASK;
3644
3645 rate = 2;
3646
3647 switch (phymode)
3648 {
3649 case RT2870_RXWI_PHYMODE_CCK:
3650 switch (mcs & ~RT2870_RXWI_MCS_SHOTPRE)
3651 {
3652 case 0: rate = 2; break; /* 1 Mbps */
3653 case 1: rate = 4; break; /* 2 MBps */
3654 case 2: rate = 11; break; /* 5.5 Mbps */
3655 case 3: rate = 22; break; /* 11 Mbps */
3656 }
3657 break;
3658
3659 case RT2870_RXWI_PHYMODE_OFDM:
3660 switch (mcs)
3661 {
3662 case 0: rate = 12; break; /* 6 Mbps */
3663 case 1: rate = 18; break; /* 9 Mbps */
3664 case 2: rate = 24; break; /* 12 Mbps */
3665 case 3: rate = 36; break; /* 18 Mbps */
3666 case 4: rate = 48; break; /* 24 Mbps */
3667 case 5: rate = 72; break; /* 36 Mbps */
3668 case 6: rate = 96; break; /* 48 Mbps */
3669 case 7: rate = 108; break; /* 54 Mbps */
3670 }
3671 break;
3672
3673 case RT2870_RXWI_PHYMODE_HT_MIXED:
3674 case RT2870_RXWI_PHYMODE_HT_GF:
3675 break;
3676 }
3677
3678 return rate;
3679 }
3680
3681 /*
3682 * rt2870_maxrssi_rxpath
3683 */
3684 static uint8_t rt2870_maxrssi_rxpath(struct rt2870_softc *sc,
3685 const struct rt2870_rxwi *rxwi)
3686 {
3687 uint8_t rxpath;
3688
3689 rxpath = 0;
3690
3691 if (sc->nrxpath > 1)
3692 if (rxwi->rssi[1] > rxwi->rssi[rxpath])
3693 rxpath = 1;
3694
3695 if (sc->nrxpath > 2)
3696 if (rxwi->rssi[2] > rxwi->rssi[rxpath])
3697 rxpath = 2;
3698
3699 return rxpath;
3700 }
3701
3702 /*
3703 * rt2870_rssi2dbm
3704 */
3705 static int8_t rt2870_rssi2dbm(struct rt2870_softc *sc,
3706 uint8_t rssi, uint8_t rxpath)
3707 {
3708 struct ifnet *ifp;
3709 struct ieee80211com *ic;
3710 struct ieee80211_channel *c;
3711 int chan;
3712 int8_t rssi_off, lna_gain;
3713
3714 if (rssi == 0)
3715 return -99;
3716
3717 ifp = sc->ifp;
3718 ic = ifp->if_l2com;
3719 c = ic->ic_curchan;
3720 chan = ieee80211_chan2ieee(ic, c);
3721
3722 if (IEEE80211_IS_CHAN_5GHZ(c))
3723 {
3724 rssi_off = sc->rssi_off_5ghz[rxpath];
3725
3726 if (chan <= 64)
3727 lna_gain = sc->lna_gain[1];
3728 else if (chan <= 128)
3729 lna_gain = sc->lna_gain[2];
3730 else
3731 lna_gain = sc->lna_gain[3];
3732 }
3733 else
3734 {
3735 rssi_off = sc->rssi_off_2ghz[rxpath];
3736 lna_gain = sc->lna_gain[0];
3737 }
3738
3739 return (-12 - rssi_off - lna_gain - rssi);
3740 }
3741
3742 /*
3743 * rt2870_rate2mcs
3744 */
3745 static uint8_t rt2870_rate2mcs(uint8_t rate)
3746 {
3747 switch (rate)
3748 {
3749 /* CCK rates */
3750 case 2: return 0;
3751 case 4: return 1;
3752 case 11: return 2;
3753 case 22: return 3;
3754
3755 /* OFDM rates */
3756 case 12: return 0;
3757 case 18: return 1;
3758 case 24: return 2;
3759 case 36: return 3;
3760 case 48: return 4;
3761 case 72: return 5;
3762 case 96: return 6;
3763 case 108: return 7;
3764 }
3765
3766 return 0;
3767 }
3768
3769 /*
3770 * rt2870_rx_frame
3771 */
3772 static void rt2870_rx_frame(struct rt2870_softc *sc,
3773 uint8_t *buf, uint32_t dmalen)
3774 {
3775 struct ifnet *ifp;
3776 struct ieee80211com *ic;
3777 struct ieee80211_frame *wh;
3778 struct ieee80211_node *ni;
3779 struct rt2870_softc_rx_radiotap_header *tap;
3780 struct rt2870_rxwi *rxwi;
3781 struct rt2870_rxinfo *rxinfo;
3782 struct mbuf *m;
3783 uint32_t rxinfo_flags;
3784 uint8_t cipher_err, rssi, ant, phymode, bw, shortgi, mcs;
3785 int8_t rssi_dbm;
3786 int len, ampdu, amsdu, rssi_dbm_rel;
3787
3788 ifp = sc->ifp;
3789 ic = ifp->if_l2com;
3790
3791 /* get Rx wireless info */
3792
3793 rxwi = (struct rt2870_rxwi *) buf;
3794 len = (le16toh(rxwi->tid_size) >> RT2870_RXWI_SIZE_SHIFT) &
3795 RT2870_RXWI_SIZE_MASK;
3796
3797 if (len > dmalen)
3798 {
3799 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
3800 "%s: bad rxwi len: DMA len=%d, rxwi len=%d\n",
3801 device_get_nameunit(sc->dev), dmalen, len);
3802 return;
3803 }
3804
3805 /* get Rx info */
3806
3807 rxinfo = (struct rt2870_rxinfo *) ((caddr_t) rxwi + dmalen);
3808 rxinfo_flags = le32toh(rxinfo->flags);
3809
3810 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
3811 "%s: Rx frame: DMA len=%d, len=%d, rxinfo flags=0x%08x\n",
3812 device_get_nameunit(sc->dev), dmalen, len, rxinfo_flags);
3813
3814 /* check for crc errors */
3815
3816 if (rxinfo_flags & RT2870_RXINFO_FLAGS_CRC_ERR)
3817 {
3818 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
3819 "%s: rxinfo: crc error\n",
3820 device_get_nameunit(sc->dev));
3821
3822 ifp->if_ierrors++;
3823
3824 if (!(ifp->if_flags & IFF_PROMISC))
3825 return;
3826 }
3827
3828 wh = (struct ieee80211_frame *) (rxwi + 1);
3829
3830 /* check for L2 padding between IEEE 802.11 frame header and body */
3831
3832 if (rxinfo_flags & RT2870_RXINFO_FLAGS_L2PAD)
3833 {
3834 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
3835 "%s: L2 padding: DMA len=%d, len=%d\n",
3836 device_get_nameunit(sc->dev), dmalen, len);
3837
3838 len += 2;
3839 }
3840
3841 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE);
3842 if (m == NULL)
3843 {
3844 sc->rx_mbuf_alloc_errors++;
3845 ifp->if_ierrors++;
3846 return;
3847 }
3848
3849 m->m_pkthdr.rcvif = ifp;
3850 m->m_pkthdr.len = m->m_len = len;
3851
3852 m_copyback(m, 0, len, (caddr_t) wh);
3853
3854 wh = mtod(m, struct ieee80211_frame *);
3855
3856 /* check for cipher errors */
3857
3858 if (rxinfo_flags & RT2870_RXINFO_FLAGS_DECRYPTED)
3859 {
3860 cipher_err = ((rxinfo_flags >> RT2870_RXINFO_FLAGS_CIPHER_ERR_SHIFT) &
3861 RT2870_RXINFO_FLAGS_CIPHER_ERR_MASK);
3862 if (cipher_err == RT2870_RXINFO_FLAGS_CIPHER_ERR_NONE)
3863 {
3864 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
3865 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
3866
3867 m->m_flags |= M_WEP;
3868 }
3869 else
3870 {
3871 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
3872 "%s: rxinfo: cipher error=0x%02x\n",
3873 device_get_nameunit(sc->dev), cipher_err);
3874
3875 ifp->if_ierrors++;
3876
3877 if (!(ifp->if_flags & IFF_PROMISC))
3878 {
3879 m_free(m);
3880 return;
3881 }
3882 }
3883 }
3884 else
3885 {
3886 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
3887 {
3888 ifp->if_ierrors++;
3889
3890 if (!(ifp->if_flags & IFF_PROMISC))
3891 {
3892 m_free(m);
3893 return;
3894 }
3895 }
3896 }
3897
3898 /* check for A-MPDU */
3899
3900 if (rxinfo_flags & RT2870_RXINFO_FLAGS_AMPDU)
3901 {
3902 m->m_flags |= M_AMPDU;
3903
3904 sc->rx_ampdu++;
3905
3906 ampdu = 1;
3907 }
3908 else
3909 {
3910 ampdu = 0;
3911 }
3912
3913 /* check for A-MSDU */
3914
3915 if (rxinfo_flags & RT2870_RXINFO_FLAGS_AMSDU)
3916 {
3917 sc->rx_amsdu++;
3918
3919 amsdu = 1;
3920 }
3921 else
3922 {
3923 amsdu = 0;
3924 }
3925
3926 ant = rt2870_maxrssi_rxpath(sc, rxwi);
3927 rssi = rxwi->rssi[ant];
3928 rssi_dbm = rt2870_rssi2dbm(sc, rssi, ant);
3929 phymode = ((rxwi->phymode_stbc_shortgi >> RT2870_RXWI_PHYMODE_SHIFT) &
3930 RT2870_RXWI_PHYMODE_MASK);
3931 bw = ((rxwi->bw_mcs >> RT2870_RXWI_BW_SHIFT) & RT2870_RXWI_BW_MASK);
3932 shortgi = ((rxwi->phymode_stbc_shortgi >> RT2870_RXWI_SHORTGI_SHIFT) &
3933 RT2870_RXWI_SHORTGI_MASK);
3934 mcs = ((rxwi->bw_mcs >> RT2870_RXWI_MCS_SHIFT) & RT2870_RXWI_MCS_MASK);
3935
3936 if (ieee80211_radiotap_active(ic))
3937 {
3938 tap = &sc->rxtap;
3939
3940 tap->flags = (rxinfo_flags & RT2870_RXINFO_FLAGS_L2PAD) ? IEEE80211_RADIOTAP_F_DATAPAD : 0;
3941 tap->dbm_antsignal = rssi_dbm;
3942 tap->dbm_antnoise = RT2870_NOISE_FLOOR;
3943 tap->antenna = ant;
3944 tap->antsignal = rssi;
3945 tap->chan_flags = htole32(ic->ic_curchan->ic_flags);
3946 tap->chan_freq = htole16(ic->ic_curchan->ic_freq);
3947 tap->chan_ieee = ic->ic_curchan->ic_ieee;
3948 tap->chan_maxpow = 0;
3949
3950 if (phymode == RT2870_RXWI_PHYMODE_CCK || phymode == RT2870_RXWI_PHYMODE_OFDM)
3951 tap->rate = rt2870_rxrate(rxwi);
3952 else
3953 tap->rate = mcs | IEEE80211_RATE_MCS;
3954
3955 if (rxwi->bw_mcs & RT2870_RXWI_MCS_SHOTPRE)
3956 tap->flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
3957
3958 if (shortgi)
3959 tap->flags |= IEEE80211_RADIOTAP_F_SHORTGI;
3960 }
3961
3962 /*
3963 * net80211 assumes that RSSI data are in the range [-127..127] and
3964 * in .5 dBm units relative to the current noise floor
3965 */
3966
3967 rssi_dbm_rel = (rssi_dbm - RT2870_NOISE_FLOOR) * 2;
3968 if (rssi_dbm_rel > 127)
3969 rssi_dbm_rel = 127;
3970
3971 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
3972 "%s: received frame: len=%d, phymode=%d, bw=%d, shortgi=%d, mcs=%d, "
3973 "ant=%d, rssi=%d/%d/%d, snr=%d/%d, wcid=0x%02x, ampdu=%d, amsdu=%d, "
3974 "rssi_dbm=%d, rssi_dbm_rel=%d\n",
3975 device_get_nameunit(sc->dev),
3976 len, phymode, bw, shortgi, mcs,
3977 ant, rxwi->rssi[0], rxwi->rssi[1], rxwi->rssi[2],
3978 rxwi->snr[0], rxwi->snr[1],
3979 rxwi->wcid, ampdu, amsdu, rssi_dbm, rssi_dbm_rel);
3980
3981 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *) wh);
3982 if (ni != NULL)
3983 {
3984 ieee80211_input(ni, m, rssi_dbm_rel, RT2870_NOISE_FLOOR);
3985 ieee80211_free_node(ni);
3986 }
3987 else
3988 {
3989 ieee80211_input_all(ic, m, rssi_dbm_rel, RT2870_NOISE_FLOOR);
3990 }
3991 }
3992
3993 /*
3994 * rt2870_tx_mgmt
3995 */
3996 static int rt2870_tx_mgmt(struct rt2870_softc *sc,
3997 struct mbuf *m, struct ieee80211_node *ni, int qid)
3998 {
3999 struct ifnet *ifp;
4000 struct ieee80211com *ic;
4001 struct ieee80211vap *vap;
4002 const struct ieee80211_txparam *tp;
4003 struct rt2870_softc_node *rni;
4004 struct rt2870_softc_tx_ring *ring;
4005 struct rt2870_softc_tx_data *data;
4006 struct rt2870_txinfo *txinfo;
4007 struct rt2870_txwi *txwi;
4008 struct ieee80211_frame *wh;
4009 struct rt2870_softc_tx_radiotap_header *tap;
4010 u_int hdrsize, hdrspace;
4011 uint8_t rate, stbc, shortgi, mcs, pid;
4012 uint16_t len, dmalen, mpdu_len, dur;
4013
4014 KASSERT(qid >= 0 && qid < (sc->usb_endpoints - 1),
4015 ("%s: Tx MGMT: invalid qid=%d\n",
4016 device_get_nameunit(sc->dev), qid));
4017
4018 ifp = sc->ifp;
4019 ic = ifp->if_l2com;
4020 vap = ni->ni_vap;
4021 rni = (struct rt2870_softc_node *) ni;
4022 tp = ni->ni_txparms;
4023
4024 ring = &sc->tx_ring[qid];
4025 data = STAILQ_FIRST(&ring->inactive);
4026 STAILQ_REMOVE_HEAD(&ring->inactive, next);
4027 txinfo = (struct rt2870_txinfo *) data->buf;
4028 txwi = (struct rt2870_txwi *) (txinfo + 1);
4029
4030 wh = mtod(m, struct ieee80211_frame *);
4031
4032 rate = tp->mgmtrate & IEEE80211_RATE_VAL;
4033
4034 len = sizeof(struct rt2870_txinfo) + sizeof(struct rt2870_txwi) + m->m_pkthdr.len;
4035
4036 /* align end on a 4-bytes boundary */
4037
4038 dmalen = (len + 3) & ~3;
4039
4040 /* fill Tx info */
4041
4042 memset(txinfo, 0, sizeof(struct rt2870_txinfo));
4043
4044 txinfo->len = htole16(dmalen - sizeof(struct rt2870_txinfo));
4045
4046 txinfo->qsel_flags = (RT2870_TXINFO_QSEL_EDCA << RT2870_TXINFO_QSEL_SHIFT);
4047
4048 dmalen += 4;
4049
4050 memset((caddr_t) txinfo + len, 0, dmalen - len);
4051
4052 /* fill Tx wireless info */
4053
4054 if (ni->ni_flags & IEEE80211_NODE_HT)
4055 mcs = rate;
4056 else
4057 mcs = rt2870_rate2mcs(rate);
4058
4059 pid = mcs;
4060
4061 /* calculate MPDU length without padding */
4062
4063 hdrsize = ieee80211_hdrsize(wh);
4064 hdrspace = ieee80211_hdrspace(ic, wh);
4065 mpdu_len = m->m_pkthdr.len - hdrspace + hdrsize;
4066
4067 memset(txwi, 0, sizeof(struct rt2870_txwi));
4068
4069 /* management frames do not need encryption */
4070
4071 txwi->wcid = 0xff;
4072
4073 txwi->pid_mpdu_len = ((htole16(pid) & RT2870_TXWI_PID_MASK) <<
4074 RT2870_TXWI_PID_SHIFT) | ((htole16(mpdu_len) & RT2870_TXWI_MPDU_LEN_MASK) <<
4075 RT2870_TXWI_MPDU_LEN_SHIFT);
4076
4077 stbc = (ni->ni_htcap & IEEE80211_HTCAP_RXSTBC) ? 1 : 0;
4078
4079 shortgi = (vap->iv_flags_ht & (IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40)) &&
4080 (ni->ni_flags & IEEE80211_NODE_HT) && (ni->ni_flags & (IEEE80211_NODE_SGI20 | IEEE80211_NODE_SGI40));
4081
4082 txwi->phymode_ifs_stbc_shortgi |=
4083 ((stbc & RT2870_TXWI_STBC_MASK) << RT2870_TXWI_STBC_SHIFT) |
4084 ((shortgi & RT2870_TXWI_SHORTGI_MASK) << RT2870_TXWI_SHORTGI_SHIFT);
4085
4086 txwi->phymode_ifs_stbc_shortgi |=
4087 ((shortgi & RT2870_TXWI_SHORTGI_MASK) << RT2870_TXWI_SHORTGI_SHIFT);
4088
4089 if (ni->ni_flags & IEEE80211_NODE_HT)
4090 {
4091 txwi->phymode_ifs_stbc_shortgi |=
4092 (RT2870_TXWI_PHYMODE_HT_MIXED << RT2870_TXWI_PHYMODE_SHIFT);
4093 }
4094 else
4095 {
4096 if (ieee80211_rate2phytype(ic->ic_rt, rate) != IEEE80211_T_OFDM)
4097 {
4098 txwi->phymode_ifs_stbc_shortgi |=
4099 (RT2870_TXWI_PHYMODE_CCK << RT2870_TXWI_PHYMODE_SHIFT);
4100
4101 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
4102 mcs |= RT2870_TXWI_MCS_SHOTPRE;
4103 }
4104 else
4105 {
4106 txwi->phymode_ifs_stbc_shortgi |=
4107 (RT2870_TXWI_PHYMODE_OFDM << RT2870_TXWI_PHYMODE_SHIFT);
4108 }
4109 }
4110
4111 txwi->bw_mcs = (RT2870_TXWI_BW_20 << RT2870_TXWI_BW_SHIFT) |
4112 ((mcs & RT2870_TXWI_MCS_MASK) << RT2870_TXWI_MCS_SHIFT);
4113
4114 txwi->txop = (RT2870_TXWI_TXOP_BACKOFF << RT2870_TXWI_TXOP_SHIFT);
4115
4116 /* skip ACKs for multicast frames and probe responses */
4117
4118 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) &&
4119 ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) !=
4120 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)))
4121 {
4122 txwi->bawin_size_xflags |=
4123 (RT2870_TXWI_XFLAGS_ACK << RT2870_TXWI_XFLAGS_SHIFT);
4124
4125 if (ni->ni_flags & IEEE80211_NODE_HT)
4126 {
4127 /* preamble + plcp + signal extension + SIFS */
4128
4129 dur = 16 + 4 + 6 + 10;
4130 }
4131 else
4132 {
4133 dur = ieee80211_ack_duration(ic->ic_rt, rate,
4134 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
4135 }
4136
4137 *(uint16_t *) wh->i_dur = htole16(dur);
4138 }
4139
4140 /* ask MAC to insert timestamp into probe responses */
4141
4142 if ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
4143 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
4144 txwi->mpdu_density_flags |=
4145 (RT2870_TXWI_FLAGS_TS << RT2870_TXWI_FLAGS_SHIFT);
4146
4147 if (ieee80211_radiotap_active_vap(vap))
4148 {
4149 tap = &sc->txtap;
4150
4151 tap->flags = IEEE80211_RADIOTAP_F_DATAPAD;
4152 tap->chan_flags = htole32(ic->ic_curchan->ic_flags);
4153 tap->chan_freq = htole16(ic->ic_curchan->ic_freq);
4154 tap->chan_ieee = ic->ic_curchan->ic_ieee;
4155 tap->chan_maxpow = 0;
4156
4157 if (ni->ni_flags & IEEE80211_NODE_HT)
4158 tap->rate = mcs | IEEE80211_RATE_MCS;
4159 else
4160 tap->rate = rate;
4161
4162 if (mcs & RT2870_TXWI_MCS_SHOTPRE)
4163 tap->flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
4164
4165 if (shortgi)
4166 tap->flags |= IEEE80211_RADIOTAP_F_SHORTGI;
4167
4168 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
4169 tap->flags |= IEEE80211_RADIOTAP_F_WEP;
4170
4171 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
4172 {
4173 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
4174
4175 ieee80211_radiotap_tx(vap, m);
4176
4177 wh->i_fc[1] |= IEEE80211_FC1_WEP;
4178 }
4179 else
4180 {
4181 ieee80211_radiotap_tx(vap, m);
4182 }
4183 }
4184
4185 m_copydata(m, 0, m->m_pkthdr.len, (caddr_t) (txwi + 1));
4186
4187 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
4188 "%s: sending MGMT frame: qid=%d, hdrsize=%d, hdrspace=%d, len=%d, "
4189 "stbc=%d, shortgi=%d, mcs=%d, DMA len=%d\n",
4190 device_get_nameunit(sc->dev),
4191 qid, hdrsize, hdrspace, m->m_pkthdr.len, stbc, shortgi, mcs, dmalen);
4192
4193 data->len = dmalen;
4194 data->m = m;
4195 data->ni = ni;
4196
4197 STAILQ_INSERT_TAIL(&ring->pending, data, next);
4198 ring->queued++;
4199
4200 usbd_transfer_start(sc->usb_xfer[1 + qid]);
4201
4202 return 0;
4203 }
4204
4205 /*
4206 * rt2870_tx_data
4207 */
4208 static int rt2870_tx_data(struct rt2870_softc *sc,
4209 struct mbuf *m, struct ieee80211_node *ni, int qid)
4210 {
4211 struct ifnet *ifp;
4212 struct ieee80211com *ic;
4213 struct ieee80211vap *vap;
4214 const struct ieee80211_txparam *tp;
4215 struct rt2870_softc_node *rni;
4216 struct rt2870_softc_tx_ring *ring;
4217 struct rt2870_softc_tx_data *data;
4218 struct rt2870_txinfo *txinfo;
4219 struct rt2870_txwi *txwi;
4220 struct ieee80211_frame *wh;
4221 struct ieee80211_tx_ampdu *tx_ampdu;
4222 ieee80211_seq seqno;
4223 struct rt2870_softc_tx_radiotap_header *tap;
4224 u_int hdrsize, hdrspace;
4225 uint8_t type, rate, bw, stbc, shortgi, mcs, pid, wcid, mpdu_density, bawin_size;
4226 uint16_t qos, len, dmalen, mpdu_len, dur;
4227 int hasqos, ac, tid, ampdu;
4228
4229 KASSERT(qid >= 0 && qid < (sc->usb_endpoints - 1),
4230 ("%s: Tx data: invalid qid=%d\n",
4231 device_get_nameunit(sc->dev), qid));
4232
4233 ifp = sc->ifp;
4234 ic = ifp->if_l2com;
4235 vap = ni->ni_vap;
4236 rni = (struct rt2870_softc_node *) ni;
4237 tp = ni->ni_txparms;
4238
4239 ring = &sc->tx_ring[qid];
4240 data = STAILQ_FIRST(&ring->inactive);
4241 STAILQ_REMOVE_HEAD(&ring->inactive, next);
4242 txinfo = (struct rt2870_txinfo *) data->buf;
4243 txwi = (struct rt2870_txwi *) (txinfo + 1);
4244
4245 wh = mtod(m, struct ieee80211_frame *);
4246
4247 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
4248
4249 hasqos = IEEE80211_QOS_HAS_SEQ(wh);
4250 if (hasqos)
4251 {
4252 if (IEEE80211_HAS_ADDR4(wh))
4253 qos = le16toh(*(const uint16_t *)
4254 (((struct ieee80211_qosframe_addr4 *) wh)->i_qos));
4255 else
4256 qos = le16toh(*(const uint16_t *)
4257 (((struct ieee80211_qosframe *) wh)->i_qos));
4258 }
4259 else
4260 {
4261 qos = 0;
4262 }
4263
4264 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
4265 rate = tp->mcastrate;
4266 else if (m->m_flags & M_EAPOL)
4267 rate = tp->mgmtrate;
4268 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
4269 rate = tp->ucastrate;
4270 else
4271 rate = ni->ni_txrate;
4272
4273 rate &= IEEE80211_RATE_VAL;
4274
4275 len = sizeof(struct rt2870_txinfo) + sizeof(struct rt2870_txwi) + m->m_pkthdr.len;
4276
4277 /* align end on a 4-bytes boundary */
4278
4279 dmalen = (len + 3) & ~3;
4280
4281 /* fill Tx info */
4282
4283 memset(txinfo, 0, sizeof(struct rt2870_txinfo));
4284
4285 txinfo->len = htole16(dmalen - sizeof(struct rt2870_txinfo));
4286
4287 txinfo->qsel_flags = (RT2870_TXINFO_QSEL_EDCA << RT2870_TXINFO_QSEL_SHIFT);
4288
4289 dmalen += 4;
4290
4291 memset((caddr_t) txinfo + len, 0, dmalen - len);
4292
4293 /* fill Tx wireless info */
4294
4295 if (ni->ni_flags & IEEE80211_NODE_HT)
4296 mcs = rate;
4297 else
4298 mcs = rt2870_rate2mcs(rate);
4299
4300 pid = mcs;
4301
4302 wcid = (type == IEEE80211_FC0_TYPE_DATA) ?
4303 RT2870_AID2WCID(ni->ni_associd) : 0xff;
4304
4305 /* calculate MPDU length without padding */
4306
4307 hdrsize = ieee80211_hdrsize(wh);
4308 hdrspace = ieee80211_hdrspace(ic, wh);
4309 mpdu_len = m->m_pkthdr.len - hdrspace + hdrsize;
4310
4311 memset(txwi, 0, sizeof(struct rt2870_txwi));
4312
4313 txwi->wcid = wcid;
4314
4315 txwi->pid_mpdu_len = ((htole16(pid) & RT2870_TXWI_PID_MASK) <<
4316 RT2870_TXWI_PID_SHIFT) | ((htole16(mpdu_len) & RT2870_TXWI_MPDU_LEN_MASK) <<
4317 RT2870_TXWI_MPDU_LEN_SHIFT);
4318
4319 stbc = (ni->ni_htcap & IEEE80211_HTCAP_RXSTBC) ? 1 : 0;
4320
4321 shortgi = (vap->iv_flags_ht & (IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40)) &&
4322 (ni->ni_flags & IEEE80211_NODE_HT) && (ni->ni_flags & (IEEE80211_NODE_SGI20 | IEEE80211_NODE_SGI40));
4323
4324 txwi->phymode_ifs_stbc_shortgi |=
4325 ((stbc & RT2870_TXWI_STBC_MASK) << RT2870_TXWI_STBC_SHIFT) |
4326 ((shortgi & RT2870_TXWI_SHORTGI_MASK) << RT2870_TXWI_SHORTGI_SHIFT);
4327
4328 if (ni->ni_flags & IEEE80211_NODE_HT)
4329 {
4330 txwi->phymode_ifs_stbc_shortgi |=
4331 (RT2870_TXWI_PHYMODE_HT_MIXED << RT2870_TXWI_PHYMODE_SHIFT);
4332 }
4333 else
4334 {
4335 if (ieee80211_rate2phytype(ic->ic_rt, rate) != IEEE80211_T_OFDM)
4336 {
4337 txwi->phymode_ifs_stbc_shortgi |=
4338 (RT2870_TXWI_PHYMODE_CCK << RT2870_TXWI_PHYMODE_SHIFT);
4339
4340 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
4341 mcs |= RT2870_TXWI_MCS_SHOTPRE;
4342 }
4343 else
4344 {
4345 txwi->phymode_ifs_stbc_shortgi |=
4346 (RT2870_TXWI_PHYMODE_OFDM << RT2870_TXWI_PHYMODE_SHIFT);
4347 }
4348 }
4349
4350 if ((ni->ni_flags & IEEE80211_NODE_HT) && (ni->ni_chw == 40))
4351 bw = RT2870_TXWI_BW_40;
4352 else
4353 bw = RT2870_TXWI_BW_20;
4354
4355 txwi->bw_mcs = ((bw & RT2870_TXWI_BW_MASK) << RT2870_TXWI_BW_SHIFT) |
4356 ((mcs & RT2870_TXWI_MCS_MASK) << RT2870_TXWI_MCS_SHIFT);
4357
4358 txwi->txop = (RT2870_TXWI_TXOP_HT << RT2870_TXWI_TXOP_SHIFT);
4359
4360 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) &&
4361 (!hasqos || (qos & IEEE80211_QOS_ACKPOLICY) != IEEE80211_QOS_ACKPOLICY_NOACK))
4362 {
4363 txwi->bawin_size_xflags |=
4364 (RT2870_TXWI_XFLAGS_ACK << RT2870_TXWI_XFLAGS_SHIFT);
4365
4366 if (ni->ni_flags & IEEE80211_NODE_HT)
4367 {
4368 /* preamble + plcp + signal extension + SIFS */
4369
4370 dur = 16 + 4 + 6 + 10;
4371 }
4372 else
4373 {
4374 dur = ieee80211_ack_duration(ic->ic_rt, rate,
4375 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
4376 }
4377
4378 *(uint16_t *) wh->i_dur = htole16(dur);
4379 }
4380
4381 /* check fo A-MPDU */
4382
4383 if (m->m_flags & M_AMPDU_MPDU)
4384 {
4385 ac = M_WME_GETAC(m);
4386 tid = WME_AC_TO_TID(ac);
4387 tx_ampdu = &ni->ni_tx_ampdu[ac];
4388
4389 mpdu_density = RT2870_MS(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY);
4390 bawin_size = 13; //tx_ampdu->txa_wnd;
4391
4392 txwi->mpdu_density_flags |=
4393 ((mpdu_density & RT2870_TXWI_MPDU_DENSITY_MASK) << RT2870_TXWI_MPDU_DENSITY_SHIFT) |
4394 (RT2870_TXWI_FLAGS_AMPDU << RT2870_TXWI_FLAGS_SHIFT);
4395
4396 txwi->bawin_size_xflags |=
4397 ((bawin_size & RT2870_TXWI_BAWIN_SIZE_MASK) << RT2870_TXWI_BAWIN_SIZE_SHIFT);
4398
4399 seqno = ni->ni_txseqs[tid]++;
4400
4401 *(uint16_t *) &wh->i_seq[0] = htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT);
4402
4403 ampdu = 1;
4404 }
4405 else
4406 {
4407 ampdu = 0;
4408 }
4409
4410 /* ask MAC to insert timestamp into probe responses */
4411
4412 if ((wh->i_fc[0] & (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
4413 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
4414 txwi->mpdu_density_flags |=
4415 (RT2870_TXWI_FLAGS_TS << RT2870_TXWI_FLAGS_SHIFT);
4416
4417 if (ieee80211_radiotap_active_vap(vap))
4418 {
4419 tap = &sc->txtap;
4420
4421 tap->flags = IEEE80211_RADIOTAP_F_DATAPAD;
4422 tap->chan_flags = htole32(ic->ic_curchan->ic_flags);
4423 tap->chan_freq = htole16(ic->ic_curchan->ic_freq);
4424 tap->chan_ieee = ic->ic_curchan->ic_ieee;
4425 tap->chan_maxpow = 0;
4426
4427 if (ni->ni_flags & IEEE80211_NODE_HT)
4428 tap->rate = mcs | IEEE80211_RATE_MCS;
4429 else
4430 tap->rate = rate;
4431
4432 if (mcs & RT2870_TXWI_MCS_SHOTPRE)
4433 tap->flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
4434
4435 if (shortgi)
4436 tap->flags |= IEEE80211_RADIOTAP_F_SHORTGI;
4437
4438 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
4439 tap->flags |= IEEE80211_RADIOTAP_F_WEP;
4440
4441 if (wh->i_fc[1] & IEEE80211_FC1_WEP)
4442 {
4443 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
4444
4445 ieee80211_radiotap_tx(vap, m);
4446
4447 wh->i_fc[1] |= IEEE80211_FC1_WEP;
4448 }
4449 else
4450 {
4451 ieee80211_radiotap_tx(vap, m);
4452 }
4453 }
4454
4455 m_copydata(m, 0, m->m_pkthdr.len, (caddr_t) (txwi + 1));
4456
4457 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
4458 "%s: sending data: qid=%d, hdrsize=%d, hdrspace=%d, len=%d, "
4459 "bw=%d, stbc=%d, shortgi=%d, mcs=%d, wcid=0x%02x, ampdu=%d, DMA len=%d\n",
4460 device_get_nameunit(sc->dev),
4461 qid, hdrsize, hdrspace, m->m_pkthdr.len,
4462 bw, stbc, shortgi, mcs, wcid, ampdu, dmalen);
4463
4464 data->len = dmalen;
4465 data->m = m;
4466 data->ni = ni;
4467
4468 STAILQ_INSERT_TAIL(&ring->pending, data, next);
4469 ring->queued++;
4470
4471 usbd_transfer_start(sc->usb_xfer[1 + qid]);
4472
4473 return 0;
4474 }
4475
4476 /*
4477 * rt2870_tx_raw
4478 */
4479 static int rt2870_tx_raw(struct rt2870_softc *sc,
4480 struct mbuf *m, struct ieee80211_node *ni,
4481 const struct ieee80211_bpf_params *params)
4482 {
4483 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
4484 "%s: Tx raw\n",
4485 device_get_nameunit(sc->dev));
4486
4487 return 0;
4488 }
4489
4490 /*
4491 * rt2870_rx_intr
4492 */
4493 static void rt2870_rx_intr(struct usb_xfer *xfer, usb_error_t error)
4494 {
4495 struct rt2870_softc *sc;
4496 struct ifnet *ifp;
4497 struct rt2870_softc_rx_ring *ring;
4498 struct rt2870_softc_rx_data *data;
4499 int len;
4500
4501 sc = usbd_xfer_softc(xfer);
4502 ifp = sc->ifp;
4503 ring = &sc->rx_ring;
4504
4505 RT2870_DPRINTF(sc, RT2870_DEBUG_INTR,
4506 "%s: Rx interrupt: state=%d, error=%s\n",
4507 device_get_nameunit(sc->dev),
4508 USB_GET_STATE(xfer), usbd_errstr(error));
4509
4510 switch (USB_GET_STATE(xfer))
4511 {
4512 case USB_ST_TRANSFERRED:
4513 sc->interrupts++;
4514 sc->rx_interrupts++;
4515
4516 data = STAILQ_FIRST(&ring->active);
4517 if (data == NULL)
4518 goto setup;
4519
4520 STAILQ_REMOVE_HEAD(&ring->active, next);
4521
4522 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
4523
4524 data->len = len;
4525
4526 STAILQ_INSERT_TAIL(&ring->done, data, next);
4527
4528 taskqueue_enqueue(sc->taskqueue, &sc->rx_done_task);
4529
4530 /* FALLTHROUGH */
4531
4532 setup:
4533
4534 case USB_ST_SETUP:
4535 data = STAILQ_FIRST(&ring->inactive);
4536 if (data == NULL)
4537 break;
4538
4539 STAILQ_REMOVE_HEAD(&ring->inactive, next);
4540
4541 STAILQ_INSERT_TAIL(&ring->active, data, next);
4542
4543 usbd_xfer_set_frame_data(xfer, 0, data->buf, usbd_xfer_max_len(xfer));
4544 usbd_transfer_submit(xfer);
4545 break;
4546
4547 default:
4548 sc->interrupts++;
4549 sc->rx_interrupts++;
4550
4551 data = STAILQ_FIRST(&ring->active);
4552 if (data != NULL)
4553 {
4554 STAILQ_REMOVE_HEAD(&ring->active, next);
4555 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
4556 }
4557
4558 if (error != USB_ERR_CANCELLED)
4559 {
4560 ifp->if_ierrors++;
4561
4562 usbd_xfer_set_stall(xfer);
4563
4564 goto setup;
4565 }
4566 break;
4567 }
4568 }
4569
4570 /*
4571 * rt2870_tx_intr
4572 */
4573 static void rt2870_tx_intr(struct usb_xfer *xfer, usb_error_t error)
4574 {
4575 struct rt2870_softc *sc;
4576 struct ifnet *ifp;
4577 struct rt2870_softc_tx_ring *ring;
4578 struct rt2870_softc_tx_data *data;
4579
4580 sc = usbd_xfer_softc(xfer);
4581 ifp = sc->ifp;
4582 ring = usbd_xfer_get_priv(xfer);
4583
4584 usbd_xfer_status(xfer, NULL, NULL, NULL, NULL);
4585
4586 RT2870_DPRINTF(sc, RT2870_DEBUG_INTR,
4587 "%s: Tx interrupt: state=%d, error=%s\n",
4588 device_get_nameunit(sc->dev),
4589 USB_GET_STATE(xfer), usbd_errstr(error));
4590
4591 switch (USB_GET_STATE(xfer))
4592 {
4593 case USB_ST_TRANSFERRED:
4594 sc->interrupts++;
4595 sc->tx_interrupts[ring->qid]++;
4596
4597 data = STAILQ_FIRST(&ring->active);
4598 if (data == NULL)
4599 goto setup;
4600
4601 STAILQ_REMOVE_HEAD(&ring->active, next);
4602
4603 STAILQ_INSERT_TAIL(&ring->done, data, next);
4604
4605 sc->tx_qid_pending_mask |= (1 << ring->qid);
4606
4607 taskqueue_enqueue(sc->taskqueue, &sc->tx_done_task);
4608
4609 /* FALLTHROUGH */
4610
4611 setup:
4612
4613 case USB_ST_SETUP:
4614 data = STAILQ_FIRST(&ring->pending);
4615 if (data == NULL)
4616 break;
4617
4618 STAILQ_REMOVE_HEAD(&ring->pending, next);
4619 STAILQ_INSERT_TAIL(&ring->active, data, next);
4620
4621 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->len);
4622 usbd_transfer_submit(xfer);
4623
4624 RT2870_SOFTC_UNLOCK(sc);
4625
4626 rt2870_start(ifp);
4627
4628 RT2870_SOFTC_LOCK(sc);
4629 break;
4630
4631 default:
4632 sc->interrupts++;
4633 sc->tx_interrupts[ring->qid]++;
4634
4635 data = STAILQ_FIRST(&ring->active);
4636 if (data != NULL)
4637 {
4638 STAILQ_REMOVE_HEAD(&ring->active, next);
4639
4640 printf("%s: could not transmit buffer: qid=%d, error=%s\n",
4641 device_get_nameunit(sc->dev), ring->qid, usbd_errstr(error));
4642
4643 if (data->m != NULL)
4644 {
4645 m_freem(data->m);
4646 data->m = NULL;
4647 }
4648
4649 if (data->ni != NULL)
4650 {
4651 ieee80211_free_node(data->ni);
4652 data->ni = NULL;
4653 }
4654
4655 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
4656
4657 ring->queued--;
4658 }
4659
4660 if (error != USB_ERR_CANCELLED)
4661 {
4662 ifp->if_oerrors++;
4663 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
4664
4665 usbd_xfer_set_stall(xfer);
4666
4667 goto setup;
4668 }
4669 break;
4670 }
4671 }
4672
4673 /*
4674 * rt2870_rx_done_task
4675 */
4676 static void rt2870_rx_done_task(void *context, int pending)
4677 {
4678 struct rt2870_softc *sc;
4679 struct ifnet *ifp;
4680
4681 sc = context;
4682 ifp = sc->ifp;
4683
4684 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
4685 "%s: Rx done task\n",
4686 device_get_nameunit(sc->dev));
4687
4688 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
4689 return;
4690
4691 if (rt2870_rx_eof(sc, sc->rx_process_limit) != 0)
4692 {
4693 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
4694 "%s: Rx done task: scheduling again\n",
4695 device_get_nameunit(sc->dev));
4696
4697 taskqueue_enqueue(sc->taskqueue, &sc->rx_done_task);
4698 }
4699 }
4700
4701 /*
4702 * rt2870_tx_done_task
4703 */
4704 static void rt2870_tx_done_task(void *context, int pending)
4705 {
4706 struct rt2870_softc *sc;
4707 struct ifnet *ifp;
4708 int i;
4709
4710 sc = context;
4711 ifp = sc->ifp;
4712
4713 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
4714 "%s: Tx done task\n",
4715 device_get_nameunit(sc->dev));
4716
4717 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
4718 return;
4719
4720 for (i = sc->usb_endpoints - 2; i >= 0; i--)
4721 {
4722 if (sc->tx_qid_pending_mask & (1 << i))
4723 {
4724 sc->tx_qid_pending_mask &= ~(1 << i);
4725
4726 rt2870_tx_eof(sc, &sc->tx_ring[i]);
4727 }
4728 }
4729
4730 if (sc->tx_qid_pending_mask != 0)
4731 {
4732 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
4733 "%s: Tx done task: scheduling again\n",
4734 device_get_nameunit(sc->dev));
4735
4736 taskqueue_enqueue(sc->taskqueue, &sc->tx_done_task);
4737 }
4738
4739 sc->tx_timer = 0;
4740
4741 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
4742 }
4743
4744 /*
4745 * rt2870_periodic_task
4746 */
4747 static void rt2870_periodic_task(void *context, int pending)
4748 {
4749 struct rt2870_softc *sc;
4750 struct ifnet *ifp;
4751 struct ieee80211com *ic;
4752 struct ieee80211vap *vap;
4753
4754 sc = context;
4755 ifp = sc->ifp;
4756 ic = ifp->if_l2com;
4757 vap = TAILQ_FIRST(&ic->ic_vaps);
4758
4759 RT2870_DPRINTF(sc, RT2870_DEBUG_PERIODIC,
4760 "%s: periodic task: round=%lu\n",
4761 device_get_nameunit(sc->dev), sc->periodic_round);
4762
4763 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
4764 return;
4765
4766 RT2870_SOFTC_LOCK(sc);
4767
4768 sc->periodic_round++;
4769
4770 rt2870_update_stats(sc);
4771
4772 if ((sc->periodic_round % 10) == 0)
4773 {
4774 rt2870_bbp_tuning(sc);
4775
4776 rt2870_update_raw_counters(sc);
4777
4778 rt2870_watchdog(sc);
4779
4780 if (vap != NULL && vap->iv_opmode != IEEE80211_M_MONITOR && vap->iv_state == IEEE80211_S_RUN)
4781 {
4782 if (vap->iv_opmode == IEEE80211_M_STA)
4783 rt2870_amrr_update_iter_func(vap, vap->iv_bss);
4784 else
4785 ieee80211_iterate_nodes(&ic->ic_sta, rt2870_amrr_update_iter_func, vap);
4786 }
4787 }
4788
4789 RT2870_SOFTC_UNLOCK(sc);
4790
4791 callout_reset(&sc->periodic_ch, hz / 10, rt2870_periodic, sc);
4792 }
4793
4794 /*
4795 * rt2870_cmd_task
4796 */
4797 static void rt2870_cmd_task(void *context, int pending)
4798 {
4799 struct rt2870_softc *sc;
4800 struct rt2870_softc_cmd_ring *ring;
4801 struct rt2870_softc_cmd *cmd;
4802
4803 sc = context;
4804 ring = &sc->cmd_ring;
4805
4806 while (1)
4807 {
4808 RT2870_SOFTC_LOCK(sc);
4809
4810 cmd = STAILQ_FIRST(&ring->active);
4811 if (cmd == NULL)
4812 {
4813 RT2870_SOFTC_UNLOCK(sc);
4814 break;
4815 }
4816
4817 STAILQ_REMOVE_HEAD(&ring->active, next);
4818
4819 RT2870_SOFTC_UNLOCK(sc);
4820
4821 cmd->cb(sc, cmd->data);
4822
4823 RT2870_SOFTC_LOCK(sc);
4824
4825 STAILQ_INSERT_TAIL(&ring->inactive, cmd, next);
4826 ring->queued--;
4827
4828 RT2870_SOFTC_UNLOCK(sc);
4829 }
4830 }
4831
4832 /*
4833 * rt2870_rx_eof
4834 */
4835 static int rt2870_rx_eof(struct rt2870_softc *sc, int limit)
4836 {
4837 struct ifnet *ifp;
4838 struct rt2870_softc_rx_ring *ring;
4839 struct rt2870_softc_rx_data *data;
4840 uint32_t dmalen;
4841 uint8_t *buf;
4842 int nframes, len;
4843
4844 ifp = sc->ifp;
4845 ring = &sc->rx_ring;
4846
4847 nframes = 0;
4848
4849 while (limit != 0)
4850 {
4851 RT2870_SOFTC_LOCK(sc);
4852
4853 data = STAILQ_FIRST(&ring->done);
4854 if (data == NULL)
4855 {
4856 RT2870_SOFTC_UNLOCK(sc);
4857 break;
4858 }
4859
4860 STAILQ_REMOVE_HEAD(&ring->done, next);
4861
4862 RT2870_SOFTC_UNLOCK(sc);
4863
4864 buf = data->buf;
4865 len = data->len;
4866
4867 if (len < RT2870_RX_DESC_SIZE)
4868 {
4869 ifp->if_ierrors++;
4870 goto skip;
4871 }
4872
4873 while (len > (sizeof(uint32_t) + sizeof(struct rt2870_rxinfo)))
4874 {
4875 dmalen = (le32toh(*(uint32_t *) buf) & 0xffff);
4876
4877 if (dmalen == 0 || (dmalen & 3) != 0)
4878 {
4879 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
4880 "%s: bad DMA len=%u\n",
4881 device_get_nameunit(sc->dev), dmalen);
4882 goto skip;
4883 }
4884
4885 if ((dmalen + sizeof(uint32_t) + sizeof(struct rt2870_rxinfo)) > len)
4886 {
4887 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
4888 "%s: bad DMA len: DMA len=%u, USB len=%d\n",
4889 device_get_nameunit(sc->dev),
4890 (unsigned int) (dmalen + sizeof(uint32_t) + sizeof(struct rt2870_rxinfo)), len);
4891 goto skip;
4892 }
4893
4894 nframes++;
4895
4896 rt2870_rx_frame(sc, buf + sizeof(uint32_t), dmalen);
4897
4898 buf += (dmalen + sizeof(uint32_t) + sizeof(struct rt2870_rxinfo));
4899 len -= (dmalen + sizeof(uint32_t) + sizeof(struct rt2870_rxinfo));
4900 }
4901
4902 skip:
4903
4904 RT2870_SOFTC_LOCK(sc);
4905
4906 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
4907
4908 usbd_transfer_start(sc->usb_xfer[0]);
4909
4910 RT2870_SOFTC_UNLOCK(sc);
4911
4912 limit--;
4913 }
4914
4915 RT2870_DPRINTF(sc, RT2870_DEBUG_RX,
4916 "%s: Rx eof: nframes=%d\n",
4917 device_get_nameunit(sc->dev), nframes);
4918
4919 sc->rx_packets += nframes;
4920
4921 return (limit == 0);
4922 }
4923
4924 /*
4925 * rt2870_tx_eof
4926 */
4927 static void rt2870_tx_eof(struct rt2870_softc *sc,
4928 struct rt2870_softc_tx_ring *ring)
4929 {
4930 struct ifnet *ifp;
4931 struct rt2870_softc_tx_data *data;
4932 int nframes;
4933
4934 ifp = sc->ifp;
4935
4936 nframes = 0;
4937
4938 while (1)
4939 {
4940 RT2870_SOFTC_LOCK(sc);
4941
4942 data = STAILQ_FIRST(&ring->done);
4943 if (data == NULL)
4944 {
4945 RT2870_SOFTC_UNLOCK(sc);
4946 break;
4947 }
4948
4949 STAILQ_REMOVE_HEAD(&ring->done, next);
4950
4951 rt2870_drain_fifo_stats(sc);
4952
4953 RT2870_SOFTC_UNLOCK(sc);
4954
4955 nframes++;
4956
4957 if (data->m->m_flags & M_TXCB)
4958 ieee80211_process_callback(data->ni, data->m, 0);
4959
4960 m_freem(data->m);
4961
4962 ieee80211_free_node(data->ni);
4963
4964 data->m = NULL;
4965 data->ni = NULL;
4966
4967 RT2870_SOFTC_LOCK(sc);
4968
4969 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
4970
4971 ring->queued--;
4972 ifp->if_opackets++;
4973
4974 RT2870_SOFTC_UNLOCK(sc);
4975 }
4976
4977 RT2870_DPRINTF(sc, RT2870_DEBUG_TX,
4978 "%s: Tx eof: qid=%d, nframes=%d\n",
4979 device_get_nameunit(sc->dev), ring->qid, nframes);
4980 }
4981
4982 /*
4983 * rt2870_update_stats
4984 */
4985 static void rt2870_update_stats(struct rt2870_softc *sc)
4986 {
4987 struct ifnet *ifp;
4988 struct ieee80211com *ic;
4989 struct ieee80211vap *vap;
4990 struct ieee80211_node *ni;
4991 uint32_t stacnt[3];
4992 int beacons, noretryok, retryok, failed;
4993 uint16_t associd;
4994 uint8_t wcid;
4995
4996 ifp = sc->ifp;
4997 ic = ifp->if_l2com;
4998 vap = TAILQ_FIRST(&ic->ic_vaps);
4999
5000 RT2870_DPRINTF(sc, RT2870_DEBUG_STATS,
5001 "%s: update statistic\n",
5002 device_get_nameunit(sc->dev));
5003
5004 rt2870_drain_fifo_stats(sc);
5005
5006 /* read and clear Tx statistic registers */
5007
5008 rt2870_io_mac_read_multi(sc, RT2870_REG_TX_STA_CNT0,
5009 stacnt, sizeof(stacnt));
5010
5011 stacnt[0] = le32toh(stacnt[0]);
5012 stacnt[1] = le32toh(stacnt[1]);
5013 stacnt[2] = le32toh(stacnt[2]);
5014
5015 beacons = stacnt[0] >> 16;
5016 noretryok = stacnt[1] & 0xffff;
5017 retryok = stacnt[1] >> 16;
5018 failed = stacnt[0] & 0xffff;
5019
5020 RT2870_DPRINTF(sc, RT2870_DEBUG_STATS,
5021 "%s: update statistic: beacons=%d, noretryok=%d, retryok=%d, failed=%d\n",
5022 device_get_nameunit(sc->dev),
5023 beacons, noretryok, retryok, failed);
5024
5025 ifp->if_oerrors += failed;
5026
5027 sc->tx_beacons += beacons;
5028 sc->tx_noretryok += noretryok;
5029 sc->tx_retryok += retryok;
5030 sc->tx_failed += failed;
5031
5032 if (vap != NULL && vap->iv_opmode == IEEE80211_M_STA && vap->iv_state == IEEE80211_S_RUN)
5033 {
5034 ni = vap->iv_bss;
5035
5036 associd = (ni != NULL) ? ni->ni_associd : 0;
5037 wcid = RT2870_AID2WCID(associd);
5038
5039 rt2870_amrr_tx_update(&sc->amrr_node[wcid],
5040 noretryok + retryok + failed, noretryok + retryok, retryok + failed);
5041 }
5042 }
5043
5044 /*
5045 * rt2870_bbp_tuning
5046 */
5047 static void rt2870_bbp_tuning(struct rt2870_softc *sc)
5048 {
5049 struct ifnet *ifp;
5050 struct ieee80211com *ic;
5051 struct ieee80211vap *vap;
5052 struct ieee80211_node *ni;
5053 int chan, group;
5054 int8_t rssi, old, new;
5055
5056 /* RT2860C does not support BBP tuning */
5057
5058 if (sc->mac_rev == 0x28600100)
5059 return;
5060
5061 ifp = sc->ifp;
5062 ic = ifp->if_l2com;
5063 vap = TAILQ_FIRST(&ic->ic_vaps);
5064
5065 if ((ic->ic_flags & IEEE80211_F_SCAN) || vap == NULL ||
5066 vap->iv_opmode != IEEE80211_M_STA || vap->iv_state != IEEE80211_S_RUN)
5067 return;
5068
5069 ni = vap->iv_bss;
5070
5071 chan = ieee80211_chan2ieee(ic, ni->ni_chan);
5072
5073 if (chan <= 14)
5074 group = 0;
5075 else if (chan <= 64)
5076 group = 1;
5077 else if (chan <= 128)
5078 group = 2;
5079 else
5080 group = 3;
5081
5082 rssi = ieee80211_getrssi(vap);
5083
5084 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan))
5085 {
5086 new = 0x2e + sc->lna_gain[group];
5087 }
5088 else
5089 {
5090 if (!IEEE80211_IS_CHAN_HT40(ni->ni_chan))
5091 new = 0x32 + sc->lna_gain[group] * 5 / 3;
5092 else
5093 new = 0x3a + sc->lna_gain[group] * 5 / 3;
5094 }
5095
5096 /* Tune if absolute average RSSI is greater than -80 */
5097
5098 if (rssi > 30)
5099 new += 0x10;
5100
5101 old = rt2870_io_bbp_read(sc, 66);
5102
5103 if (old != new)
5104 rt2870_io_bbp_write(sc, 66, new);
5105 }
5106
5107 /*
5108 * rt2870_watchdog
5109 */
5110 static void rt2870_watchdog(struct rt2870_softc *sc)
5111 {
5112 uint32_t tmp;
5113 int ntries;
5114
5115 tmp = rt2870_io_mac_read(sc, RT2870_REG_PBF_TXRXQ_PCNT);
5116
5117 RT2870_DPRINTF(sc, RT2870_DEBUG_WATCHDOG,
5118 "%s: watchdog: TXRXQ_PCNT=0x%08x\n",
5119 device_get_nameunit(sc->dev), tmp);
5120
5121 if (((tmp >> RT2870_REG_TX0Q_PCNT_SHIFT) & RT2870_REG_TX0Q_PCNT_MASK) != 0)
5122 {
5123 sc->tx_queue_not_empty[0]++;
5124
5125 rt2870_io_mac_write(sc, RT2870_REG_PBF_CFG, 0xf40012);
5126
5127 for (ntries = 0; ntries < 10; ntries++)
5128 {
5129 tmp = rt2870_io_mac_read(sc, RT2870_REG_PBF_TXRXQ_PCNT);
5130 if (((tmp >> RT2870_REG_TX0Q_PCNT_SHIFT) & RT2870_REG_TX0Q_PCNT_MASK) == 0)
5131 break;
5132
5133 DELAY(1);
5134 }
5135
5136 rt2870_io_mac_write(sc, RT2870_REG_PBF_CFG, 0xf40006);
5137 }
5138
5139 if (((tmp >> RT2870_REG_TX1Q_PCNT_SHIFT) & RT2870_REG_TX1Q_PCNT_MASK) != 0)
5140 {
5141 sc->tx_queue_not_empty[1]++;
5142
5143 rt2870_io_mac_write(sc, RT2870_REG_PBF_CFG, 0xf4000a);
5144
5145 for (ntries = 0; ntries < 10; ntries++)
5146 {
5147 tmp = rt2870_io_mac_read(sc, RT2870_REG_PBF_TXRXQ_PCNT);
5148 if (((tmp >> RT2870_REG_TX1Q_PCNT_SHIFT) & RT2870_REG_TX1Q_PCNT_MASK) == 0)
5149 break;
5150
5151 DELAY(1);
5152 }
5153
5154 rt2870_io_mac_write(sc, RT2870_REG_PBF_CFG, 0xf40006);
5155 }
5156 }
5157
5158 /*
5159 * rt2870_drain_fifo_stats
5160 */
5161 static void rt2870_drain_fifo_stats(struct rt2870_softc *sc)
5162 {
5163 struct ifnet *ifp;
5164 uint32_t stats;
5165 uint8_t wcid, mcs, pid;
5166 int ok, agg, retrycnt;
5167
5168 ifp = sc->ifp;
5169
5170 /* drain Tx status FIFO (maxsize = 16) */
5171
5172 while ((stats = rt2870_io_mac_read(sc, RT2870_REG_TX_STA_FIFO)) &
5173 RT2870_REG_TX_STA_FIFO_VALID)
5174 {
5175 wcid = (stats >> RT2870_REG_TX_STA_FIFO_WCID_SHIFT) &
5176 RT2870_REG_TX_STA_FIFO_WCID_MASK;
5177
5178 /* if no ACK was requested, no feedback is available */
5179
5180 if (!(stats & RT2870_REG_TX_STA_FIFO_ACK_REQ) || wcid == 0xff)
5181 continue;
5182
5183 /* update AMRR statistic */
5184
5185 ok = (stats & RT2870_REG_TX_STA_FIFO_TX_OK) ? 1 : 0;
5186 agg = (stats & RT2870_REG_TX_STA_FIFO_AGG) ? 1 : 0;
5187 mcs = (stats >> RT2870_REG_TX_STA_FIFO_MCS_SHIFT) &
5188 RT2870_REG_TX_STA_FIFO_MCS_MASK;
5189 pid = (stats >> RT2870_REG_TX_STA_FIFO_PID_SHIFT) &
5190 RT2870_REG_TX_STA_FIFO_PID_MASK;
5191 retrycnt = pid - mcs;
5192
5193 RT2870_DPRINTF(sc, RT2870_DEBUG_STATS,
5194 "%s: FIFO statistic: wcid=0x%02x, ok=%d, agg=%d, mcs=0x%02x, pid=0x%02x, retrycnt=%d\n",
5195 device_get_nameunit(sc->dev),
5196 wcid, ok, agg, mcs, pid, retrycnt);
5197
5198 rt2870_amrr_tx_complete(&sc->amrr_node[wcid], ok, retrycnt);
5199
5200 if (!ok)
5201 ifp->if_oerrors++;
5202 }
5203 }
5204
5205 /*
5206 * rt2870_update_raw_counters
5207 */
5208 static void rt2870_update_raw_counters(struct rt2870_softc *sc)
5209 {
5210 uint32_t tmp;
5211
5212 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT);
5213
5214 sc->tx_nonagg += tmp & 0xffff;
5215 sc->tx_agg += tmp >> 16;
5216
5217 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT0);
5218
5219 sc->tx_ampdu += (tmp & 0xffff) / 1 + (tmp >> 16) / 2;
5220
5221 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT1);
5222
5223 sc->tx_ampdu += (tmp & 0xffff) / 3 + (tmp >> 16) / 4;
5224
5225 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT2);
5226
5227 sc->tx_ampdu += (tmp & 0xffff) / 5 + (tmp >> 16) / 6;
5228
5229 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT3);
5230
5231 sc->tx_ampdu += (tmp & 0xffff) / 7 + (tmp >> 16) / 8;
5232
5233 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT4);
5234
5235 sc->tx_ampdu += (tmp & 0xffff) / 9 + (tmp >> 16) / 10;
5236
5237 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT5);
5238
5239 sc->tx_ampdu += (tmp & 0xffff) / 11 + (tmp >> 16) / 12;
5240
5241 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT6);
5242
5243 sc->tx_ampdu += (tmp & 0xffff) / 13 + (tmp >> 16) / 14;
5244
5245 tmp = rt2870_io_mac_read(sc, RT2870_REG_TX_AGG_CNT7);
5246
5247 sc->tx_ampdu += (tmp & 0xffff) / 15 + (tmp >> 16) / 16;
5248
5249 tmp = rt2870_io_mac_read(sc, RT2870_REG_RX_STA_CNT0);
5250
5251 sc->rx_crc_errors += tmp & 0xffff;
5252 sc->rx_phy_errors += tmp >> 16;
5253
5254 tmp = rt2870_io_mac_read(sc, RT2870_REG_RX_STA_CNT1);
5255
5256 sc->rx_false_ccas += tmp & 0xffff;
5257 sc->rx_plcp_errors += tmp >> 16;
5258
5259 tmp = rt2870_io_mac_read(sc, RT2870_REG_RX_STA_CNT2);
5260
5261 sc->rx_dup_packets += tmp & 0xffff;
5262 sc->rx_fifo_overflows += tmp >> 16;
5263 }
5264
5265 /*
5266 * rt2870_txrx_enable
5267 */
5268 static int rt2870_txrx_enable(struct rt2870_softc *sc)
5269 {
5270 struct ieee80211com *ic;
5271 struct ifnet *ifp;
5272 uint32_t tmp;
5273 int ntries;
5274
5275 ifp = sc->ifp;
5276 ic = ifp->if_l2com;
5277
5278 /* enable Tx/Rx DMA engine */
5279
5280 tmp = rt2870_io_mac_read(sc, RT2870_REG_SCHDMA_USB_CYC_CFG);
5281
5282 tmp &= 0xffffff00;
5283 tmp |= 0x1e;
5284
5285 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_USB_CYC_CFG, tmp);
5286
5287 if ((sc->mac_rev & 0xffff) != 0x0101)
5288 rt2870_io_mac_write(sc, RT2870_REG_TX_TXOP_CTRL_CFG, 0x583f);
5289
5290 rt2870_io_mac_write(sc, RT2870_REG_SYS_CTRL, RT2870_REG_TX_ENABLE);
5291
5292 for (ntries = 0; ntries < 200; ntries++)
5293 {
5294 tmp = rt2870_io_mac_read(sc, RT2870_REG_SCHDMA_WPDMA_GLO_CFG);
5295 if (!(tmp & (RT2870_REG_TX_DMA_BUSY | RT2870_REG_RX_DMA_BUSY)))
5296 break;
5297
5298 DELAY(1000);
5299 }
5300
5301 if (ntries == 200)
5302 {
5303 printf("%s: timeout waiting for DMA engine\n",
5304 device_get_nameunit(sc->dev));
5305 return -1;
5306 }
5307
5308 DELAY(50);
5309
5310 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WMM_TXOP0_CFG, 0);
5311 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WMM_TXOP1_CFG,
5312 (48 << 16) | 96);
5313
5314 tmp |= RT2870_REG_TX_WB_DDONE |
5315 RT2870_REG_RX_DMA_ENABLE |
5316 RT2870_REG_TX_DMA_ENABLE;
5317
5318 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_WPDMA_GLO_CFG, tmp);
5319
5320 tmp = RT2870_REG_USB_DMA_TX_ENABLE |
5321 RT2870_REG_USB_DMA_RX_ENABLE |
5322 RT2870_REG_USB_DMA_RX_AGG_ENABLE |
5323 /* Rx agg limit in unit of 1024 byte */
5324 ((RT2870_USB_RX_BULK_BUFLEN / 1024 - 3) << RT2870_REG_USB_DMA_RX_AGG_LIMIT_SHIFT) |
5325 /* Rx agg timeout in unit of 33ns */
5326 0x80;
5327
5328 rt2870_io_mac_write(sc, RT2870_REG_SCHDMA_USB_DMA_CFG, tmp);
5329
5330 /* set Rx filter */
5331
5332 tmp = RT2870_REG_RX_FILTER_DROP_CRC_ERR |
5333 RT2870_REG_RX_FILTER_DROP_PHY_ERR;
5334
5335 if (ic->ic_opmode != IEEE80211_M_MONITOR)
5336 {
5337 tmp |= RT2870_REG_RX_FILTER_DROP_DUPL |
5338 RT2870_REG_RX_FILTER_DROP_CTS |
5339 RT2870_REG_RX_FILTER_DROP_BA |
5340 RT2870_REG_RX_FILTER_DROP_ACK |
5341 RT2870_REG_RX_FILTER_DROP_VER_ERR |
5342 RT2870_REG_RX_FILTER_DROP_CTRL_RSV |
5343 RT2870_REG_RX_FILTER_DROP_CFACK |
5344 RT2870_REG_RX_FILTER_DROP_CFEND;
5345
5346 if (ic->ic_opmode == IEEE80211_M_STA)
5347 tmp |= RT2870_REG_RX_FILTER_DROP_RTS |
5348 RT2870_REG_RX_FILTER_DROP_PSPOLL;
5349
5350 if (!(ifp->if_flags & IFF_PROMISC))
5351 tmp |= RT2870_REG_RX_FILTER_DROP_UC_NOME;
5352 }
5353
5354 rt2870_io_mac_write(sc, RT2870_REG_RX_FILTER_CFG, tmp);
5355
5356 rt2870_io_mac_write(sc, RT2870_REG_SYS_CTRL,
5357 RT2870_REG_RX_ENABLE | RT2870_REG_TX_ENABLE);
5358
5359 return 0;
5360 }
5361
5362 /*
5363 * rt2870_alloc_rx_ring
5364 */
5365 static int rt2870_alloc_rx_ring(struct rt2870_softc *sc,
5366 struct rt2870_softc_rx_ring *ring)
5367 {
5368 struct rt2870_softc_rx_data *data;
5369 int i, error;
5370
5371 STAILQ_INIT(&ring->inactive);
5372 STAILQ_INIT(&ring->active);
5373 STAILQ_INIT(&ring->done);
5374
5375 for (i = 0; i < RT2870_SOFTC_RX_RING_DATA_COUNT; i++)
5376 {
5377 data = &ring->data[i];
5378
5379 data->buf = malloc(RT2870_USB_RX_BULK_BUFLEN, M_USBDEV, M_NOWAIT);
5380 if (data->buf == NULL)
5381 {
5382 printf("%s: could not allocate Rx buffer\n",
5383 device_get_nameunit(sc->dev));
5384 error = ENOMEM;
5385 goto fail;
5386 }
5387
5388 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
5389 }
5390
5391 return 0;
5392
5393 fail:
5394
5395 rt2870_free_rx_ring(sc, ring);
5396
5397 return error;
5398 }
5399
5400 /*
5401 * rt2870_reset_rx_ring
5402 */
5403 static void rt2870_reset_rx_ring(struct rt2870_softc *sc,
5404 struct rt2870_softc_rx_ring *ring)
5405 {
5406 struct rt2870_softc_rx_data *data;
5407 int i;
5408
5409 STAILQ_INIT(&ring->inactive);
5410 STAILQ_INIT(&ring->active);
5411 STAILQ_INIT(&ring->done);
5412
5413 for (i = 0; i < RT2870_SOFTC_RX_RING_DATA_COUNT; i++)
5414 {
5415 data = &ring->data[i];
5416
5417 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
5418 }
5419 }
5420
5421 /*
5422 * rt2870_free_rx_ring
5423 */
5424 static void rt2870_free_rx_ring(struct rt2870_softc *sc,
5425 struct rt2870_softc_rx_ring *ring)
5426 {
5427 struct rt2870_softc_rx_data *data;
5428 int i;
5429
5430 for (i = 0; i < RT2870_SOFTC_RX_RING_DATA_COUNT; i++)
5431 {
5432 data = &ring->data[i];
5433
5434 if (data->buf != NULL)
5435 {
5436 free(data->buf, M_USBDEV);
5437 data->buf = NULL;
5438 }
5439 }
5440 }
5441
5442 /*
5443 * rt2870_alloc_tx_ring
5444 */
5445 static int rt2870_alloc_tx_ring(struct rt2870_softc *sc,
5446 struct rt2870_softc_tx_ring *ring, int qid)
5447 {
5448 struct rt2870_softc_tx_data *data;
5449 int i, error;
5450
5451 STAILQ_INIT(&ring->inactive);
5452 STAILQ_INIT(&ring->pending);
5453 STAILQ_INIT(&ring->active);
5454 STAILQ_INIT(&ring->done);
5455
5456 ring->queued = 0;
5457 ring->qid = qid;
5458
5459 for (i = 0; i < RT2870_SOFTC_TX_RING_DATA_COUNT; i++)
5460 {
5461 data = &ring->data[i];
5462
5463 data->buf = malloc(RT2870_TX_DESC_SIZE + MJUMPAGESIZE, M_USBDEV, M_NOWAIT);
5464 if (data->buf == NULL)
5465 {
5466 printf("%s: could not allocate Tx buffer\n",
5467 device_get_nameunit(sc->dev));
5468 error = ENOMEM;
5469 goto fail;
5470 }
5471
5472 memset(data->buf, 0, RT2870_TX_DESC_SIZE);
5473
5474 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
5475 }
5476
5477 return 0;
5478
5479 fail:
5480
5481 rt2870_free_tx_ring(sc, ring);
5482
5483 return error;
5484 }
5485
5486 /*
5487 * rt2870_reset_tx_ring
5488 */
5489 static void rt2870_reset_tx_ring(struct rt2870_softc *sc,
5490 struct rt2870_softc_tx_ring *ring)
5491 {
5492 struct rt2870_softc_tx_data *data;
5493 int i;
5494
5495 STAILQ_INIT(&ring->inactive);
5496 STAILQ_INIT(&ring->pending);
5497 STAILQ_INIT(&ring->active);
5498 STAILQ_INIT(&ring->done);
5499
5500 ring->queued = 0;
5501
5502 for (i = 0; i < RT2870_SOFTC_TX_RING_DATA_COUNT; i++)
5503 {
5504 data = &ring->data[i];
5505
5506 if (data->m != NULL)
5507 {
5508 m_free(data->m);
5509 data->m = NULL;
5510 }
5511
5512 if (data->ni != NULL)
5513 {
5514 ieee80211_free_node(data->ni);
5515 data->ni = NULL;
5516 }
5517
5518 STAILQ_INSERT_TAIL(&ring->inactive, data, next);
5519 }
5520 }
5521
5522 /*
5523 * rt2870_free_tx_ring
5524 */
5525 static void rt2870_free_tx_ring(struct rt2870_softc *sc,
5526 struct rt2870_softc_tx_ring *ring)
5527 {
5528 struct rt2870_softc_tx_data *data;
5529 int i;
5530
5531 for (i = 0; i < RT2870_SOFTC_TX_RING_DATA_COUNT; i++)
5532 {
5533 data = &ring->data[i];
5534
5535 if (data->buf != NULL)
5536 {
5537 free(data->buf, M_USBDEV);
5538 data->buf = NULL;
5539 }
5540
5541 if (data->m != NULL)
5542 {
5543 m_free(data->m);
5544 data->m = NULL;
5545 }
5546
5547 if (data->ni != NULL)
5548 {
5549 ieee80211_free_node(data->ni);
5550 data->ni = NULL;
5551 }
5552 }
5553 }
5554
5555 /*
5556 * rt2870_reset_cmd_ring
5557 */
5558 static void rt2870_reset_cmd_ring(struct rt2870_softc *sc,
5559 struct rt2870_softc_cmd_ring *ring)
5560 {
5561 struct rt2870_softc_cmd *cmd;
5562 int i;
5563
5564 STAILQ_INIT(&ring->inactive);
5565 STAILQ_INIT(&ring->active);
5566
5567 ring->queued = 0;
5568
5569 for (i = 0; i < RT2870_SOFTC_CMD_RING_CMD_COUNT; i++)
5570 {
5571 cmd = &ring->cmd[i];
5572
5573 STAILQ_INSERT_TAIL(&ring->inactive, cmd, next);
5574 }
5575 }
5576
5577 /*
5578 * rt2870_sysctl_attach
5579 */
5580 static void rt2870_sysctl_attach(struct rt2870_softc *sc)
5581 {
5582 struct sysctl_ctx_list *ctx;
5583 struct sysctl_oid *tree;
5584 struct sysctl_oid *stats;
5585
5586 ctx = device_get_sysctl_ctx(sc->dev);
5587 tree = device_get_sysctl_tree(sc->dev);
5588
5589 stats = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
5590 "stats", CTLFLAG_RD, 0, "statistic");
5591
5592 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5593 "interrupts", CTLFLAG_RD, &sc->interrupts, 0,
5594 "all interrupts");
5595
5596 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5597 "rx_interrupts", CTLFLAG_RD, &sc->rx_interrupts, 0,
5598 "Rx interrupts");
5599
5600 if (sc->usb_endpoints == RT2870_SOFTC_USB_XFER_COUNT)
5601 {
5602 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5603 "tx_mgmt_interrupts", CTLFLAG_RD, &sc->tx_interrupts[5], 0,
5604 "Tx MGMT interrupts");
5605
5606 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5607 "tx_hcca_interrupts", CTLFLAG_RD, &sc->tx_interrupts[4], 0,
5608 "Tx HCCA interrupts");
5609 }
5610
5611 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5612 "tx_ac3_interrupts", CTLFLAG_RD, &sc->tx_interrupts[3], 0,
5613 "Tx AC3 interrupts");
5614
5615 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5616 "tx_ac2_interrupts", CTLFLAG_RD, &sc->tx_interrupts[2], 0,
5617 "Tx AC2 interrupts");
5618
5619 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5620 "tx_ac1_interrupts", CTLFLAG_RD, &sc->tx_interrupts[1], 0,
5621 "Tx AC1 interrupts");
5622
5623 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5624 "tx_ac0_interrupts", CTLFLAG_RD, &sc->tx_interrupts[0], 0,
5625 "Tx AC0 interrupts");
5626
5627 if (sc->usb_endpoints == RT2870_SOFTC_USB_XFER_COUNT)
5628 {
5629 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5630 "tx_mgmt_data_queued", CTLFLAG_RD, &sc->tx_ring[5].queued, 0,
5631 "Tx MGMT data queued");
5632
5633 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5634 "tx_hcca_data_queued", CTLFLAG_RD, &sc->tx_ring[4].queued, 0,
5635 "Tx HCCA data queued");
5636 }
5637
5638 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5639 "tx_ac3_data_queued", CTLFLAG_RD, &sc->tx_ring[3].queued, 0,
5640 "Tx AC3 data queued");
5641
5642 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5643 "tx_ac2_data_queued", CTLFLAG_RD, &sc->tx_ring[2].queued, 0,
5644 "Tx AC2 data queued");
5645
5646 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5647 "tx_ac1_data_queued", CTLFLAG_RD, &sc->tx_ring[1].queued, 0,
5648 "Tx AC1 data queued");
5649
5650 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5651 "tx_ac0_data_queued", CTLFLAG_RD, &sc->tx_ring[0].queued, 0,
5652 "Tx AC0 data queued");
5653
5654 if (sc->usb_endpoints == RT2870_SOFTC_USB_XFER_COUNT)
5655 {
5656 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5657 "tx_mgmt_data_queue_full", CTLFLAG_RD, &sc->tx_data_queue_full[5], 0,
5658 "Tx MGMT data queue full");
5659
5660 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5661 "tx_hcca_data_queue_full", CTLFLAG_RD, &sc->tx_data_queue_full[4], 0,
5662 "Tx HCCA data queue full");
5663 }
5664
5665 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5666 "tx_ac3_data_queue_full", CTLFLAG_RD, &sc->tx_data_queue_full[3], 0,
5667 "Tx AC3 data queue full");
5668
5669 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5670 "tx_ac2_data_queue_full", CTLFLAG_RD, &sc->tx_data_queue_full[2], 0,
5671 "Tx AC2 data queue full");
5672
5673 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5674 "tx_ac1_data_queue_full", CTLFLAG_RD, &sc->tx_data_queue_full[1], 0,
5675 "Tx AC1 data queue full");
5676
5677 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5678 "tx_ac0_data_queue_full", CTLFLAG_RD, &sc->tx_data_queue_full[0], 0,
5679 "Tx AC0 data queue full");
5680
5681 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5682 "tx_watchdog_timeouts", CTLFLAG_RD, &sc->tx_watchdog_timeouts, 0,
5683 "Tx watchdog timeouts");
5684
5685 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5686 "rx_mbuf_alloc_errors", CTLFLAG_RD, &sc->rx_mbuf_alloc_errors, 0,
5687 "Rx mbuf allocation errors");
5688
5689 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5690 "tx_queue_0_not_empty", CTLFLAG_RD, &sc->tx_queue_not_empty[0], 0,
5691 "Tx queue 0 not empty");
5692
5693 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5694 "tx_queue_1_not_empty", CTLFLAG_RD, &sc->tx_queue_not_empty[1], 0,
5695 "Tx queue 1 not empty");
5696
5697 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5698 "tx_beacons", CTLFLAG_RD, &sc->tx_beacons, 0,
5699 "Tx beacons");
5700
5701 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5702 "tx_noretryok", CTLFLAG_RD, &sc->tx_noretryok, 0,
5703 "Tx successfull without retries");
5704
5705 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5706 "tx_retryok", CTLFLAG_RD, &sc->tx_retryok, 0,
5707 "Tx successfull with retries");
5708
5709 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5710 "tx_failed", CTLFLAG_RD, &sc->tx_failed, 0,
5711 "Tx failed");
5712
5713 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5714 "tx_nonagg", CTLFLAG_RD, &sc->tx_nonagg, 0,
5715 "Tx non-aggregated");
5716
5717 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5718 "tx_agg", CTLFLAG_RD, &sc->tx_agg, 0,
5719 "Tx aggregated");
5720
5721 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5722 "tx_ampdu", CTLFLAG_RD, &sc->tx_ampdu, 0,
5723 "Tx A-MPDU");
5724
5725 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5726 "rx_packets", CTLFLAG_RD, &sc->rx_packets, 0,
5727 "Rx packets");
5728
5729 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5730 "rx_ampdu", CTLFLAG_RD, &sc->rx_ampdu, 0,
5731 "Rx A-MPDU");
5732
5733 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5734 "rx_amsdu", CTLFLAG_RD, &sc->rx_amsdu, 0,
5735 "Rx A-MSDU");
5736
5737 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5738 "rx_crc_errors", CTLFLAG_RD, &sc->rx_crc_errors, 0,
5739 "Rx CRC errors");
5740
5741 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5742 "rx_phy_errors", CTLFLAG_RD, &sc->rx_phy_errors, 0,
5743 "Rx PHY errors");
5744
5745 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5746 "rx_false_ccas", CTLFLAG_RD, &sc->rx_false_ccas, 0,
5747 "Rx false CCAs");
5748
5749 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5750 "rx_plcp_errors", CTLFLAG_RD, &sc->rx_plcp_errors, 0,
5751 "Rx PLCP errors");
5752
5753 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5754 "rx_dup_packets", CTLFLAG_RD, &sc->rx_dup_packets, 0,
5755 "Rx duplicate packets");
5756
5757 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(stats), OID_AUTO,
5758 "rx_fifo_overflows", CTLFLAG_RD, &sc->rx_fifo_overflows, 0,
5759 "Rx FIFO overflows");
5760 }
5761
5762 static device_method_t rt2870_dev_methods[] =
5763 {
5764 DEVMETHOD(device_probe, rt2870_probe),
5765 DEVMETHOD(device_attach, rt2870_attach),
5766 DEVMETHOD(device_detach, rt2870_detach),
5767 { 0, 0 }
5768 };
5769
5770 static driver_t rt2870_driver =
5771 {
5772 "rt2870",
5773 rt2870_dev_methods,
5774 sizeof(struct rt2870_softc),
5775 };
5776
5777 static devclass_t rt2870_dev_class;
5778
5779 DRIVER_MODULE(rt2870, uhub, rt2870_driver, rt2870_dev_class,
5780 NULL, 0);
5781
5782 MODULE_DEPEND(rt2870, usb, 1, 1, 1);
5783 MODULE_DEPEND(rt2870, wlan, 1, 1, 1);
FreeBSD 8 device driver for Ralink rt2870