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17
18#define __UNDEF_NO_VERSION__
19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
21#include <linux/etherdevice.h>
22#include <linux/sched.h>
23#include <linux/firmware.h>
24#include <linux/interrupt.h>
25#include <linux/module.h>
26#include <linux/bcma/bcma.h>
27#include <net/mac80211.h>
28#include <defs.h>
29#include "phy/phy_int.h"
30#include "d11.h"
31#include "channel.h"
32#include "scb.h"
33#include "pub.h"
34#include "ucode_loader.h"
35#include "mac80211_if.h"
36#include "main.h"
37#include "debug.h"
38#include "led.h"
39
40#define N_TX_QUEUES 4
41#define BRCMS_FLUSH_TIMEOUT 500
42
43
44#define MAC_FILTERS (FIF_ALLMULTI | \
45 FIF_FCSFAIL | \
46 FIF_CONTROL | \
47 FIF_OTHER_BSS | \
48 FIF_BCN_PRBRESP_PROMISC | \
49 FIF_PSPOLL)
50
51#define CHAN2GHZ(channel, freqency, chflags) { \
52 .band = NL80211_BAND_2GHZ, \
53 .center_freq = (freqency), \
54 .hw_value = (channel), \
55 .flags = chflags, \
56 .max_antenna_gain = 0, \
57 .max_power = 19, \
58}
59
60#define CHAN5GHZ(channel, chflags) { \
61 .band = NL80211_BAND_5GHZ, \
62 .center_freq = 5000 + 5*(channel), \
63 .hw_value = (channel), \
64 .flags = chflags, \
65 .max_antenna_gain = 0, \
66 .max_power = 21, \
67}
68
69#define RATE(rate100m, _flags) { \
70 .bitrate = (rate100m), \
71 .flags = (_flags), \
72 .hw_value = (rate100m / 5), \
73}
74
75struct firmware_hdr {
76 __le32 offset;
77 __le32 len;
78 __le32 idx;
79};
80
81static const char * const brcms_firmwares[MAX_FW_IMAGES] = {
82 "brcm/bcm43xx",
83 NULL
84};
85
86static int n_adapters_found;
87
88MODULE_AUTHOR("Broadcom Corporation");
89MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
90MODULE_LICENSE("Dual BSD/GPL");
91
92MODULE_FIRMWARE("brcm/bcm43xx-0.fw");
93MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw");
94
95
96static struct bcma_device_id brcms_coreid_table[] = {
97 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS),
98 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS),
99 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS),
100 {},
101};
102MODULE_DEVICE_TABLE(bcma, brcms_coreid_table);
103
104#if defined(CONFIG_BRCMDBG)
105
106
107
108
109
110module_param_named(debug, brcm_msg_level, uint, 0644);
111#endif
112
113static struct ieee80211_channel brcms_2ghz_chantable[] = {
114 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
115 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
116 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
117 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
118 CHAN2GHZ(5, 2432, 0),
119 CHAN2GHZ(6, 2437, 0),
120 CHAN2GHZ(7, 2442, 0),
121 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
122 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
123 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
124 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
125 CHAN2GHZ(12, 2467,
126 IEEE80211_CHAN_NO_IR |
127 IEEE80211_CHAN_NO_HT40PLUS),
128 CHAN2GHZ(13, 2472,
129 IEEE80211_CHAN_NO_IR |
130 IEEE80211_CHAN_NO_HT40PLUS),
131 CHAN2GHZ(14, 2484,
132 IEEE80211_CHAN_NO_IR |
133 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
134 IEEE80211_CHAN_NO_OFDM)
135};
136
137static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
138
139 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
140 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
141 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
142 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
143
144 CHAN5GHZ(52,
145 IEEE80211_CHAN_RADAR |
146 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
147 CHAN5GHZ(56,
148 IEEE80211_CHAN_RADAR |
149 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
150 CHAN5GHZ(60,
151 IEEE80211_CHAN_RADAR |
152 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
153 CHAN5GHZ(64,
154 IEEE80211_CHAN_RADAR |
155 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
156
157 CHAN5GHZ(100,
158 IEEE80211_CHAN_RADAR |
159 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
160 CHAN5GHZ(104,
161 IEEE80211_CHAN_RADAR |
162 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
163 CHAN5GHZ(108,
164 IEEE80211_CHAN_RADAR |
165 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
166 CHAN5GHZ(112,
167 IEEE80211_CHAN_RADAR |
168 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
169 CHAN5GHZ(116,
170 IEEE80211_CHAN_RADAR |
171 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
172 CHAN5GHZ(120,
173 IEEE80211_CHAN_RADAR |
174 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
175 CHAN5GHZ(124,
176 IEEE80211_CHAN_RADAR |
177 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
178 CHAN5GHZ(128,
179 IEEE80211_CHAN_RADAR |
180 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
181 CHAN5GHZ(132,
182 IEEE80211_CHAN_RADAR |
183 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
184 CHAN5GHZ(136,
185 IEEE80211_CHAN_RADAR |
186 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
187 CHAN5GHZ(140,
188 IEEE80211_CHAN_RADAR |
189 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS |
190 IEEE80211_CHAN_NO_HT40MINUS),
191
192 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
193 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
194 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
195 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
196 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
197};
198
199
200
201
202
203static struct ieee80211_rate legacy_ratetable[] = {
204 RATE(10, 0),
205 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
206 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
207 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
208 RATE(60, 0),
209 RATE(90, 0),
210 RATE(120, 0),
211 RATE(180, 0),
212 RATE(240, 0),
213 RATE(360, 0),
214 RATE(480, 0),
215 RATE(540, 0),
216};
217
218static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = {
219 .band = NL80211_BAND_2GHZ,
220 .channels = brcms_2ghz_chantable,
221 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
222 .bitrates = legacy_ratetable,
223 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
224 .ht_cap = {
225
226 .cap = IEEE80211_HT_CAP_GRN_FLD |
227 IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40,
228 .ht_supported = true,
229 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
230 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
231 .mcs = {
232
233 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
234 .rx_highest = cpu_to_le16(500),
235 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
236 }
237};
238
239static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = {
240 .band = NL80211_BAND_5GHZ,
241 .channels = brcms_5ghz_nphy_chantable,
242 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
243 .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET,
244 .n_bitrates = ARRAY_SIZE(legacy_ratetable) -
245 BRCMS_LEGACY_5G_RATE_OFFSET,
246 .ht_cap = {
247 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
248 IEEE80211_HT_CAP_SGI_40,
249 .ht_supported = true,
250 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
251 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
252 .mcs = {
253
254 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
255 .rx_highest = cpu_to_le16(500),
256 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
257 }
258};
259
260
261static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br)
262{
263 u32 i;
264
265 for (i = 0; i < rs->count; i++) {
266 if (rate != (rs->rates[i] & 0x7f))
267 continue;
268
269 if (is_br)
270 rs->rates[i] |= BRCMS_RATE_FLAG;
271 else
272 rs->rates[i] &= BRCMS_RATE_MASK;
273 return;
274 }
275}
276
277
278
279
280
281
282
283
284
285static void brcms_free(struct brcms_info *wl)
286{
287 struct brcms_timer *t, *next;
288
289
290 if (wl->fw.fw_cnt)
291 brcms_ucode_data_free(&wl->ucode);
292 if (wl->irq)
293 free_irq(wl->irq, wl);
294
295
296 tasklet_kill(&wl->tasklet);
297
298 if (wl->pub) {
299 brcms_debugfs_detach(wl->pub);
300 brcms_c_module_unregister(wl->pub, "linux", wl);
301 }
302
303
304 if (wl->wlc) {
305 brcms_c_detach(wl->wlc);
306 wl->wlc = NULL;
307 wl->pub = NULL;
308 }
309
310
311
312
313 while (atomic_read(&wl->callbacks) > 0)
314 schedule();
315
316
317 for (t = wl->timers; t; t = next) {
318 next = t->next;
319#ifdef DEBUG
320 kfree(t->name);
321#endif
322 kfree(t);
323 }
324}
325
326
327
328
329
330static void brcms_remove(struct bcma_device *pdev)
331{
332 struct ieee80211_hw *hw = bcma_get_drvdata(pdev);
333 struct brcms_info *wl = hw->priv;
334
335 if (wl->wlc) {
336 brcms_led_unregister(wl);
337 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
338 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
339 ieee80211_unregister_hw(hw);
340 }
341
342 brcms_free(wl);
343
344 bcma_set_drvdata(pdev, NULL);
345 ieee80211_free_hw(hw);
346}
347
348
349
350
351
352static void brcms_release_fw(struct brcms_info *wl)
353{
354 int i;
355 for (i = 0; i < MAX_FW_IMAGES; i++) {
356 release_firmware(wl->fw.fw_bin[i]);
357 release_firmware(wl->fw.fw_hdr[i]);
358 }
359}
360
361
362
363
364
365static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev)
366{
367 int status;
368 struct device *device = &pdev->dev;
369 char fw_name[100];
370 int i;
371
372 memset(&wl->fw, 0, sizeof(struct brcms_firmware));
373 for (i = 0; i < MAX_FW_IMAGES; i++) {
374 if (brcms_firmwares[i] == NULL)
375 break;
376 sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
377 UCODE_LOADER_API_VER);
378 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
379 if (status) {
380 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
381 KBUILD_MODNAME, fw_name);
382 return status;
383 }
384 sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
385 UCODE_LOADER_API_VER);
386 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
387 if (status) {
388 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
389 KBUILD_MODNAME, fw_name);
390 return status;
391 }
392 wl->fw.hdr_num_entries[i] =
393 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
394 }
395 wl->fw.fw_cnt = i;
396 status = brcms_ucode_data_init(wl, &wl->ucode);
397 brcms_release_fw(wl);
398 return status;
399}
400
401static void brcms_ops_tx(struct ieee80211_hw *hw,
402 struct ieee80211_tx_control *control,
403 struct sk_buff *skb)
404{
405 struct brcms_info *wl = hw->priv;
406 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
407
408 spin_lock_bh(&wl->lock);
409 if (!wl->pub->up) {
410 brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n");
411 kfree_skb(skb);
412 goto done;
413 }
414 if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw))
415 tx_info->rate_driver_data[0] = control->sta;
416 done:
417 spin_unlock_bh(&wl->lock);
418}
419
420static int brcms_ops_start(struct ieee80211_hw *hw)
421{
422 struct brcms_info *wl = hw->priv;
423 bool blocked;
424 int err;
425
426 if (!wl->ucode.bcm43xx_bomminor) {
427 err = brcms_request_fw(wl, wl->wlc->hw->d11core);
428 if (err)
429 return -ENOENT;
430 }
431
432 ieee80211_wake_queues(hw);
433 spin_lock_bh(&wl->lock);
434 blocked = brcms_rfkill_set_hw_state(wl);
435 spin_unlock_bh(&wl->lock);
436 if (!blocked)
437 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
438
439 spin_lock_bh(&wl->lock);
440
441 wl->mute_tx = true;
442
443 if (!wl->pub->up)
444 if (!blocked)
445 err = brcms_up(wl);
446 else
447 err = -ERFKILL;
448 else
449 err = -ENODEV;
450 spin_unlock_bh(&wl->lock);
451
452 if (err != 0)
453 brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
454 __func__, err);
455
456 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true);
457 return err;
458}
459
460static void brcms_ops_stop(struct ieee80211_hw *hw)
461{
462 struct brcms_info *wl = hw->priv;
463 int status;
464
465 ieee80211_stop_queues(hw);
466
467 if (wl->wlc == NULL)
468 return;
469
470 spin_lock_bh(&wl->lock);
471 status = brcms_c_chipmatch(wl->wlc->hw->d11core);
472 spin_unlock_bh(&wl->lock);
473 if (!status) {
474 brcms_err(wl->wlc->hw->d11core,
475 "wl: brcms_ops_stop: chipmatch failed\n");
476 return;
477 }
478
479 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false);
480
481
482 spin_lock_bh(&wl->lock);
483 brcms_down(wl);
484 spin_unlock_bh(&wl->lock);
485}
486
487static int
488brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
489{
490 struct brcms_info *wl = hw->priv;
491
492
493 if (vif->type != NL80211_IFTYPE_STATION &&
494 vif->type != NL80211_IFTYPE_AP &&
495 vif->type != NL80211_IFTYPE_ADHOC) {
496 brcms_err(wl->wlc->hw->d11core,
497 "%s: Attempt to add type %d, only STA, AP and AdHoc for now\n",
498 __func__, vif->type);
499 return -EOPNOTSUPP;
500 }
501
502 spin_lock_bh(&wl->lock);
503 wl->wlc->vif = vif;
504 wl->mute_tx = false;
505 brcms_c_mute(wl->wlc, false);
506 if (vif->type == NL80211_IFTYPE_STATION)
507 brcms_c_start_station(wl->wlc, vif->addr);
508 else if (vif->type == NL80211_IFTYPE_AP)
509 brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid,
510 vif->bss_conf.ssid, vif->bss_conf.ssid_len);
511 else if (vif->type == NL80211_IFTYPE_ADHOC)
512 brcms_c_start_adhoc(wl->wlc, vif->addr);
513 spin_unlock_bh(&wl->lock);
514
515 return 0;
516}
517
518static void
519brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
520{
521 struct brcms_info *wl = hw->priv;
522
523 spin_lock_bh(&wl->lock);
524 wl->wlc->vif = NULL;
525 spin_unlock_bh(&wl->lock);
526}
527
528static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
529{
530 struct ieee80211_conf *conf = &hw->conf;
531 struct brcms_info *wl = hw->priv;
532 struct bcma_device *core = wl->wlc->hw->d11core;
533 int err = 0;
534 int new_int;
535
536 spin_lock_bh(&wl->lock);
537 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
538 brcms_c_set_beacon_listen_interval(wl->wlc,
539 conf->listen_interval);
540 }
541 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
542 brcms_dbg_info(core, "%s: change monitor mode: %s\n",
543 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
544 "true" : "false");
545 if (changed & IEEE80211_CONF_CHANGE_PS)
546 brcms_err(core, "%s: change power-save mode: %s (implement)\n",
547 __func__, conf->flags & IEEE80211_CONF_PS ?
548 "true" : "false");
549
550 if (changed & IEEE80211_CONF_CHANGE_POWER) {
551 err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
552 if (err < 0) {
553 brcms_err(core, "%s: Error setting power_level\n",
554 __func__);
555 goto config_out;
556 }
557 new_int = brcms_c_get_tx_power(wl->wlc);
558 if (new_int != conf->power_level)
559 brcms_err(core,
560 "%s: Power level req != actual, %d %d\n",
561 __func__, conf->power_level,
562 new_int);
563 }
564 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
565 if (conf->chandef.width == NL80211_CHAN_WIDTH_20 ||
566 conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
567 err = brcms_c_set_channel(wl->wlc,
568 conf->chandef.chan->hw_value);
569 else
570 err = -ENOTSUPP;
571 }
572 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
573 err = brcms_c_set_rate_limit(wl->wlc,
574 conf->short_frame_max_tx_count,
575 conf->long_frame_max_tx_count);
576
577 config_out:
578 spin_unlock_bh(&wl->lock);
579 return err;
580}
581
582static void
583brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
584 struct ieee80211_vif *vif,
585 struct ieee80211_bss_conf *info, u32 changed)
586{
587 struct brcms_info *wl = hw->priv;
588 struct bcma_device *core = wl->wlc->hw->d11core;
589
590 if (changed & BSS_CHANGED_ASSOC) {
591
592
593
594 brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
595 __func__, info->assoc ? "" : "dis");
596 spin_lock_bh(&wl->lock);
597 brcms_c_associate_upd(wl->wlc, info->assoc);
598 spin_unlock_bh(&wl->lock);
599 }
600 if (changed & BSS_CHANGED_ERP_SLOT) {
601 s8 val;
602
603
604 if (info->use_short_slot)
605 val = 1;
606 else
607 val = 0;
608 spin_lock_bh(&wl->lock);
609 brcms_c_set_shortslot_override(wl->wlc, val);
610 spin_unlock_bh(&wl->lock);
611 }
612
613 if (changed & BSS_CHANGED_HT) {
614
615 u16 mode = info->ht_operation_mode;
616
617 spin_lock_bh(&wl->lock);
618 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
619 mode & IEEE80211_HT_OP_MODE_PROTECTION);
620 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
621 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
622 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
623 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
624 spin_unlock_bh(&wl->lock);
625 }
626 if (changed & BSS_CHANGED_BASIC_RATES) {
627 struct ieee80211_supported_band *bi;
628 u32 br_mask, i;
629 u16 rate;
630 struct brcm_rateset rs;
631 int error;
632
633
634 spin_lock_bh(&wl->lock);
635 brcms_c_get_current_rateset(wl->wlc, &rs);
636 spin_unlock_bh(&wl->lock);
637
638 br_mask = info->basic_rates;
639 bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
640 for (i = 0; i < bi->n_bitrates; i++) {
641
642 rate = (bi->bitrates[i].bitrate << 1) / 10;
643
644
645 brcms_set_basic_rate(&rs, rate, br_mask & 1);
646 br_mask >>= 1;
647 }
648
649
650 spin_lock_bh(&wl->lock);
651 error = brcms_c_set_rateset(wl->wlc, &rs);
652 spin_unlock_bh(&wl->lock);
653 if (error)
654 brcms_err(core, "changing basic rates failed: %d\n",
655 error);
656 }
657 if (changed & BSS_CHANGED_BEACON_INT) {
658
659 spin_lock_bh(&wl->lock);
660 brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
661 spin_unlock_bh(&wl->lock);
662 }
663 if (changed & BSS_CHANGED_BSSID) {
664
665 spin_lock_bh(&wl->lock);
666 brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
667 spin_unlock_bh(&wl->lock);
668 }
669 if (changed & BSS_CHANGED_SSID) {
670
671 spin_lock_bh(&wl->lock);
672 brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len);
673 spin_unlock_bh(&wl->lock);
674 }
675 if (changed & BSS_CHANGED_BEACON) {
676
677 struct sk_buff *beacon;
678 u16 tim_offset = 0;
679
680 spin_lock_bh(&wl->lock);
681 beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL);
682 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
683 info->dtim_period);
684 spin_unlock_bh(&wl->lock);
685 }
686
687 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
688 struct sk_buff *probe_resp;
689
690 spin_lock_bh(&wl->lock);
691 probe_resp = ieee80211_proberesp_get(hw, vif);
692 brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
693 spin_unlock_bh(&wl->lock);
694 }
695
696 if (changed & BSS_CHANGED_BEACON_ENABLED) {
697
698 brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
699 info->enable_beacon ? "true" : "false");
700 if (info->enable_beacon &&
701 hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) {
702 brcms_c_enable_probe_resp(wl->wlc, true);
703 } else {
704 brcms_c_enable_probe_resp(wl->wlc, false);
705 }
706 }
707
708 if (changed & BSS_CHANGED_CQM) {
709
710 brcms_err(core, "%s: cqm change: threshold %d, hys %d "
711 " (implement)\n", __func__, info->cqm_rssi_thold,
712 info->cqm_rssi_hyst);
713 }
714
715 if (changed & BSS_CHANGED_IBSS) {
716
717 brcms_err(core, "%s: IBSS joined: %s (implement)\n",
718 __func__, info->ibss_joined ? "true" : "false");
719 }
720
721 if (changed & BSS_CHANGED_ARP_FILTER) {
722
723 brcms_err(core, "%s: arp filtering: %d addresses"
724 " (implement)\n", __func__, info->arp_addr_cnt);
725 }
726
727 if (changed & BSS_CHANGED_QOS) {
728
729
730
731
732 brcms_err(core, "%s: qos enabled: %s (implement)\n",
733 __func__, info->qos ? "true" : "false");
734 }
735 return;
736}
737
738static void
739brcms_ops_configure_filter(struct ieee80211_hw *hw,
740 unsigned int changed_flags,
741 unsigned int *total_flags, u64 multicast)
742{
743 struct brcms_info *wl = hw->priv;
744 struct bcma_device *core = wl->wlc->hw->d11core;
745
746 changed_flags &= MAC_FILTERS;
747 *total_flags &= MAC_FILTERS;
748
749 if (changed_flags & FIF_ALLMULTI)
750 brcms_dbg_info(core, "FIF_ALLMULTI\n");
751 if (changed_flags & FIF_FCSFAIL)
752 brcms_dbg_info(core, "FIF_FCSFAIL\n");
753 if (changed_flags & FIF_CONTROL)
754 brcms_dbg_info(core, "FIF_CONTROL\n");
755 if (changed_flags & FIF_OTHER_BSS)
756 brcms_dbg_info(core, "FIF_OTHER_BSS\n");
757 if (changed_flags & FIF_PSPOLL)
758 brcms_dbg_info(core, "FIF_PSPOLL\n");
759 if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
760 brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n");
761
762 spin_lock_bh(&wl->lock);
763 brcms_c_mac_promisc(wl->wlc, *total_flags);
764 spin_unlock_bh(&wl->lock);
765 return;
766}
767
768static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw,
769 struct ieee80211_vif *vif,
770 const u8 *mac_addr)
771{
772 struct brcms_info *wl = hw->priv;
773 spin_lock_bh(&wl->lock);
774 brcms_c_scan_start(wl->wlc);
775 spin_unlock_bh(&wl->lock);
776 return;
777}
778
779static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw,
780 struct ieee80211_vif *vif)
781{
782 struct brcms_info *wl = hw->priv;
783 spin_lock_bh(&wl->lock);
784 brcms_c_scan_stop(wl->wlc);
785 spin_unlock_bh(&wl->lock);
786 return;
787}
788
789static int
790brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
791 const struct ieee80211_tx_queue_params *params)
792{
793 struct brcms_info *wl = hw->priv;
794
795 spin_lock_bh(&wl->lock);
796 brcms_c_wme_setparams(wl->wlc, queue, params, true);
797 spin_unlock_bh(&wl->lock);
798
799 return 0;
800}
801
802static int
803brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
804 struct ieee80211_sta *sta)
805{
806 struct brcms_info *wl = hw->priv;
807 struct scb *scb = &wl->wlc->pri_scb;
808
809 brcms_c_init_scb(scb);
810
811 wl->pub->global_ampdu = &(scb->scb_ampdu);
812 wl->pub->global_ampdu->scb = scb;
813 wl->pub->global_ampdu->max_pdu = 16;
814
815
816
817
818
819 return 0;
820}
821
822static int
823brcms_ops_ampdu_action(struct ieee80211_hw *hw,
824 struct ieee80211_vif *vif,
825 struct ieee80211_ampdu_params *params)
826{
827 struct brcms_info *wl = hw->priv;
828 struct scb *scb = &wl->wlc->pri_scb;
829 int status;
830 struct ieee80211_sta *sta = params->sta;
831 enum ieee80211_ampdu_mlme_action action = params->action;
832 u16 tid = params->tid;
833 u8 buf_size = params->buf_size;
834
835 if (WARN_ON(scb->magic != SCB_MAGIC))
836 return -EIDRM;
837 switch (action) {
838 case IEEE80211_AMPDU_RX_START:
839 break;
840 case IEEE80211_AMPDU_RX_STOP:
841 break;
842 case IEEE80211_AMPDU_TX_START:
843 spin_lock_bh(&wl->lock);
844 status = brcms_c_aggregatable(wl->wlc, tid);
845 spin_unlock_bh(&wl->lock);
846 if (!status) {
847 brcms_dbg_ht(wl->wlc->hw->d11core,
848 "START: tid %d is not agg\'able\n", tid);
849 return -EINVAL;
850 }
851 return IEEE80211_AMPDU_TX_START_IMMEDIATE;
852
853 case IEEE80211_AMPDU_TX_STOP_CONT:
854 case IEEE80211_AMPDU_TX_STOP_FLUSH:
855 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
856 spin_lock_bh(&wl->lock);
857 brcms_c_ampdu_flush(wl->wlc, sta, tid);
858 spin_unlock_bh(&wl->lock);
859 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
860 break;
861 case IEEE80211_AMPDU_TX_OPERATIONAL:
862
863
864
865
866
867
868 spin_lock_bh(&wl->lock);
869 brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
870 (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
871 sta->ht_cap.ampdu_factor)) - 1);
872 spin_unlock_bh(&wl->lock);
873
874 break;
875 default:
876 brcms_err(wl->wlc->hw->d11core,
877 "%s: Invalid command, ignoring\n", __func__);
878 }
879
880 return 0;
881}
882
883static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
884{
885 struct brcms_info *wl = hw->priv;
886 bool blocked;
887
888 spin_lock_bh(&wl->lock);
889 blocked = brcms_c_check_radio_disabled(wl->wlc);
890 spin_unlock_bh(&wl->lock);
891
892 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
893}
894
895static bool brcms_tx_flush_completed(struct brcms_info *wl)
896{
897 bool result;
898
899 spin_lock_bh(&wl->lock);
900 result = brcms_c_tx_flush_completed(wl->wlc);
901 spin_unlock_bh(&wl->lock);
902 return result;
903}
904
905static void brcms_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
906 u32 queues, bool drop)
907{
908 struct brcms_info *wl = hw->priv;
909 int ret;
910
911 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
912
913 ret = wait_event_timeout(wl->tx_flush_wq,
914 brcms_tx_flush_completed(wl),
915 msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
916
917 brcms_dbg_mac80211(wl->wlc->hw->d11core,
918 "ret=%d\n", jiffies_to_msecs(ret));
919}
920
921static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
922{
923 struct brcms_info *wl = hw->priv;
924 u64 tsf;
925
926 spin_lock_bh(&wl->lock);
927 tsf = brcms_c_tsf_get(wl->wlc);
928 spin_unlock_bh(&wl->lock);
929
930 return tsf;
931}
932
933static void brcms_ops_set_tsf(struct ieee80211_hw *hw,
934 struct ieee80211_vif *vif, u64 tsf)
935{
936 struct brcms_info *wl = hw->priv;
937
938 spin_lock_bh(&wl->lock);
939 brcms_c_tsf_set(wl->wlc, tsf);
940 spin_unlock_bh(&wl->lock);
941}
942
943static int brcms_ops_beacon_set_tim(struct ieee80211_hw *hw,
944 struct ieee80211_sta *sta, bool set)
945{
946 struct brcms_info *wl = hw->priv;
947 struct sk_buff *beacon = NULL;
948 u16 tim_offset = 0;
949
950 spin_lock_bh(&wl->lock);
951 if (wl->wlc->vif)
952 beacon = ieee80211_beacon_get_tim(hw, wl->wlc->vif,
953 &tim_offset, NULL);
954 if (beacon)
955 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
956 wl->wlc->vif->bss_conf.dtim_period);
957 spin_unlock_bh(&wl->lock);
958
959 return 0;
960}
961
962static const struct ieee80211_ops brcms_ops = {
963 .tx = brcms_ops_tx,
964 .start = brcms_ops_start,
965 .stop = brcms_ops_stop,
966 .add_interface = brcms_ops_add_interface,
967 .remove_interface = brcms_ops_remove_interface,
968 .config = brcms_ops_config,
969 .bss_info_changed = brcms_ops_bss_info_changed,
970 .configure_filter = brcms_ops_configure_filter,
971 .sw_scan_start = brcms_ops_sw_scan_start,
972 .sw_scan_complete = brcms_ops_sw_scan_complete,
973 .conf_tx = brcms_ops_conf_tx,
974 .sta_add = brcms_ops_sta_add,
975 .ampdu_action = brcms_ops_ampdu_action,
976 .rfkill_poll = brcms_ops_rfkill_poll,
977 .flush = brcms_ops_flush,
978 .get_tsf = brcms_ops_get_tsf,
979 .set_tsf = brcms_ops_set_tsf,
980 .set_tim = brcms_ops_beacon_set_tim,
981};
982
983void brcms_dpc(struct tasklet_struct *t)
984{
985 struct brcms_info *wl;
986
987 wl = from_tasklet(wl, t, tasklet);
988
989 spin_lock_bh(&wl->lock);
990
991
992 if (wl->pub->up) {
993 if (wl->resched) {
994 unsigned long flags;
995
996 spin_lock_irqsave(&wl->isr_lock, flags);
997 brcms_c_intrsupd(wl->wlc);
998 spin_unlock_irqrestore(&wl->isr_lock, flags);
999 }
1000
1001 wl->resched = brcms_c_dpc(wl->wlc, true);
1002 }
1003
1004
1005 if (!wl->pub->up)
1006 goto done;
1007
1008
1009 if (wl->resched)
1010 tasklet_schedule(&wl->tasklet);
1011 else
1012
1013 brcms_intrson(wl);
1014
1015 done:
1016 spin_unlock_bh(&wl->lock);
1017 wake_up(&wl->tx_flush_wq);
1018}
1019
1020static irqreturn_t brcms_isr(int irq, void *dev_id)
1021{
1022 struct brcms_info *wl;
1023 irqreturn_t ret = IRQ_NONE;
1024
1025 wl = (struct brcms_info *) dev_id;
1026
1027 spin_lock(&wl->isr_lock);
1028
1029
1030 if (brcms_c_isr(wl->wlc)) {
1031
1032 tasklet_schedule(&wl->tasklet);
1033 ret = IRQ_HANDLED;
1034 }
1035
1036 spin_unlock(&wl->isr_lock);
1037
1038 return ret;
1039}
1040
1041
1042
1043
1044static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1045{
1046 struct brcms_info *wl = hw->priv;
1047 struct brcms_c_info *wlc = wl->wlc;
1048 struct ieee80211_supported_band *band;
1049 int has_5g = 0;
1050 u16 phy_type;
1051
1052 hw->wiphy->bands[NL80211_BAND_2GHZ] = NULL;
1053 hw->wiphy->bands[NL80211_BAND_5GHZ] = NULL;
1054
1055 phy_type = brcms_c_get_phy_type(wl->wlc, 0);
1056 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1057 band = &wlc->bandstate[BAND_2G_INDEX]->band;
1058 *band = brcms_band_2GHz_nphy_template;
1059 if (phy_type == PHY_TYPE_LCN) {
1060
1061 band->ht_cap.mcs.rx_mask[1] = 0;
1062 band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
1063 }
1064 hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
1065 } else {
1066 return -EPERM;
1067 }
1068
1069
1070 if (wl->pub->_nbands > 1) {
1071 has_5g++;
1072 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1073 band = &wlc->bandstate[BAND_5G_INDEX]->band;
1074 *band = brcms_band_5GHz_nphy_template;
1075 hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
1076 } else {
1077 return -EPERM;
1078 }
1079 }
1080 return 0;
1081}
1082
1083
1084
1085
1086static int ieee_hw_init(struct ieee80211_hw *hw)
1087{
1088 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
1089 ieee80211_hw_set(hw, SIGNAL_DBM);
1090 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
1091
1092 hw->extra_tx_headroom = brcms_c_get_header_len();
1093 hw->queues = N_TX_QUEUES;
1094 hw->max_rates = 2;
1095
1096
1097 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1098 BIT(NL80211_IFTYPE_AP) |
1099 BIT(NL80211_IFTYPE_ADHOC);
1100
1101
1102
1103
1104
1105
1106
1107
1108 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1109
1110 hw->rate_control_algorithm = "minstrel_ht";
1111
1112 hw->sta_data_size = 0;
1113 return ieee_hw_rate_init(hw);
1114}
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124static struct brcms_info *brcms_attach(struct bcma_device *pdev)
1125{
1126 struct brcms_info *wl = NULL;
1127 int unit, err;
1128 struct ieee80211_hw *hw;
1129 u8 perm[ETH_ALEN];
1130
1131 unit = n_adapters_found;
1132 err = 0;
1133
1134 if (unit < 0)
1135 return NULL;
1136
1137
1138 hw = bcma_get_drvdata(pdev);
1139 if (hw != NULL)
1140 wl = hw->priv;
1141 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
1142 return NULL;
1143 wl->wiphy = hw->wiphy;
1144
1145 atomic_set(&wl->callbacks, 0);
1146
1147 init_waitqueue_head(&wl->tx_flush_wq);
1148
1149
1150 tasklet_setup(&wl->tasklet, brcms_dpc);
1151
1152 spin_lock_init(&wl->lock);
1153 spin_lock_init(&wl->isr_lock);
1154
1155
1156 wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
1157 if (!wl->wlc) {
1158 wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
1159 KBUILD_MODNAME, err);
1160 goto fail;
1161 }
1162 wl->pub = brcms_c_pub(wl->wlc);
1163
1164 wl->pub->ieee_hw = hw;
1165
1166
1167 if (request_irq(pdev->irq, brcms_isr,
1168 IRQF_SHARED, KBUILD_MODNAME, wl)) {
1169 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
1170 goto fail;
1171 }
1172 wl->irq = pdev->irq;
1173
1174
1175 brcms_c_module_register(wl->pub, "linux", wl, NULL);
1176
1177 if (ieee_hw_init(hw)) {
1178 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
1179 __func__);
1180 goto fail;
1181 }
1182
1183 brcms_c_regd_init(wl->wlc);
1184
1185 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
1186 if (WARN_ON(!is_valid_ether_addr(perm)))
1187 goto fail;
1188 SET_IEEE80211_PERM_ADDR(hw, perm);
1189
1190 err = ieee80211_register_hw(hw);
1191 if (err)
1192 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
1193 "%d\n", __func__, err);
1194
1195 if (wl->pub->srom_ccode[0] &&
1196 regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
1197 wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
1198
1199 brcms_debugfs_attach(wl->pub);
1200 brcms_debugfs_create_files(wl->pub);
1201 n_adapters_found++;
1202 return wl;
1203
1204fail:
1205 brcms_free(wl);
1206 return NULL;
1207}
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219static int brcms_bcma_probe(struct bcma_device *pdev)
1220{
1221 struct brcms_info *wl;
1222 struct ieee80211_hw *hw;
1223 int ret;
1224
1225 dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
1226 pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
1227 pdev->irq);
1228
1229 if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
1230 (pdev->id.id != BCMA_CORE_80211))
1231 return -ENODEV;
1232
1233 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1234 if (!hw) {
1235 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1236 return -ENOMEM;
1237 }
1238
1239 SET_IEEE80211_DEV(hw, &pdev->dev);
1240
1241 bcma_set_drvdata(pdev, hw);
1242
1243 memset(hw->priv, 0, sizeof(*wl));
1244
1245 wl = brcms_attach(pdev);
1246 if (!wl) {
1247 pr_err("%s: brcms_attach failed!\n", __func__);
1248 ret = -ENODEV;
1249 goto err_free_ieee80211;
1250 }
1251 brcms_led_register(wl);
1252
1253 return 0;
1254
1255err_free_ieee80211:
1256 ieee80211_free_hw(hw);
1257 return ret;
1258}
1259
1260static int brcms_suspend(struct bcma_device *pdev)
1261{
1262 struct brcms_info *wl;
1263 struct ieee80211_hw *hw;
1264
1265 hw = bcma_get_drvdata(pdev);
1266 wl = hw->priv;
1267 if (!wl) {
1268 pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
1269 __func__);
1270 return -ENODEV;
1271 }
1272
1273
1274 spin_lock_bh(&wl->lock);
1275 wl->pub->hw_up = false;
1276 spin_unlock_bh(&wl->lock);
1277
1278 brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
1279
1280 return 0;
1281}
1282
1283static int brcms_resume(struct bcma_device *pdev)
1284{
1285 return 0;
1286}
1287
1288static struct bcma_driver brcms_bcma_driver = {
1289 .name = KBUILD_MODNAME,
1290 .probe = brcms_bcma_probe,
1291 .suspend = brcms_suspend,
1292 .resume = brcms_resume,
1293 .remove = brcms_remove,
1294 .id_table = brcms_coreid_table,
1295};
1296
1297
1298
1299
1300
1301
1302
1303
1304static void brcms_driver_init(struct work_struct *work)
1305{
1306 int error;
1307
1308 error = bcma_driver_register(&brcms_bcma_driver);
1309 if (error)
1310 pr_err("%s: register returned %d\n", __func__, error);
1311}
1312
1313static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
1314
1315static int __init brcms_module_init(void)
1316{
1317 brcms_debugfs_init();
1318 if (!schedule_work(&brcms_driver_work))
1319 return -EBUSY;
1320
1321 return 0;
1322}
1323
1324
1325
1326
1327
1328
1329
1330
1331static void __exit brcms_module_exit(void)
1332{
1333 cancel_work_sync(&brcms_driver_work);
1334 bcma_driver_unregister(&brcms_bcma_driver);
1335 brcms_debugfs_exit();
1336}
1337
1338module_init(brcms_module_init);
1339module_exit(brcms_module_exit);
1340
1341
1342
1343
1344void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1345 bool state, int prio)
1346{
1347 brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
1348}
1349
1350
1351
1352
1353void brcms_init(struct brcms_info *wl)
1354{
1355 brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
1356 wl->pub->unit);
1357 brcms_reset(wl);
1358 brcms_c_init(wl->wlc, wl->mute_tx);
1359}
1360
1361
1362
1363
1364uint brcms_reset(struct brcms_info *wl)
1365{
1366 brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
1367 brcms_c_reset(wl->wlc);
1368
1369
1370 wl->resched = false;
1371
1372
1373 wl->pub->up = false;
1374
1375 return 0;
1376}
1377
1378void brcms_fatal_error(struct brcms_info *wl)
1379{
1380 brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
1381 wl->wlc->pub->unit);
1382 brcms_reset(wl);
1383 ieee80211_restart_hw(wl->pub->ieee_hw);
1384}
1385
1386
1387
1388
1389
1390void brcms_intrson(struct brcms_info *wl)
1391{
1392 unsigned long flags;
1393
1394 spin_lock_irqsave(&wl->isr_lock, flags);
1395 brcms_c_intrson(wl->wlc);
1396 spin_unlock_irqrestore(&wl->isr_lock, flags);
1397}
1398
1399u32 brcms_intrsoff(struct brcms_info *wl)
1400{
1401 unsigned long flags;
1402 u32 status;
1403
1404 spin_lock_irqsave(&wl->isr_lock, flags);
1405 status = brcms_c_intrsoff(wl->wlc);
1406 spin_unlock_irqrestore(&wl->isr_lock, flags);
1407 return status;
1408}
1409
1410void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1411{
1412 unsigned long flags;
1413
1414 spin_lock_irqsave(&wl->isr_lock, flags);
1415 brcms_c_intrsrestore(wl->wlc, macintmask);
1416 spin_unlock_irqrestore(&wl->isr_lock, flags);
1417}
1418
1419
1420
1421
1422int brcms_up(struct brcms_info *wl)
1423{
1424 int error = 0;
1425
1426 if (wl->pub->up)
1427 return 0;
1428
1429 error = brcms_c_up(wl->wlc);
1430
1431 return error;
1432}
1433
1434
1435
1436
1437void brcms_down(struct brcms_info *wl)
1438 __must_hold(&wl->lock)
1439{
1440 uint callbacks, ret_val = 0;
1441
1442
1443 ret_val = brcms_c_down(wl->wlc);
1444 callbacks = atomic_read(&wl->callbacks) - ret_val;
1445
1446
1447 spin_unlock_bh(&wl->lock);
1448
1449
1450
1451
1452 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1453
1454 spin_lock_bh(&wl->lock);
1455}
1456
1457
1458
1459
1460static void _brcms_timer(struct work_struct *work)
1461{
1462 struct brcms_timer *t = container_of(work, struct brcms_timer,
1463 dly_wrk.work);
1464
1465 spin_lock_bh(&t->wl->lock);
1466
1467 if (t->set) {
1468 if (t->periodic) {
1469 atomic_inc(&t->wl->callbacks);
1470 ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
1471 &t->dly_wrk,
1472 msecs_to_jiffies(t->ms));
1473 } else {
1474 t->set = false;
1475 }
1476
1477 t->fn(t->arg);
1478 }
1479
1480 atomic_dec(&t->wl->callbacks);
1481
1482 spin_unlock_bh(&t->wl->lock);
1483}
1484
1485
1486
1487
1488
1489
1490
1491struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1492 void (*fn) (void *arg),
1493 void *arg, const char *name)
1494{
1495 struct brcms_timer *t;
1496
1497 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1498 if (!t)
1499 return NULL;
1500
1501 INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
1502 t->wl = wl;
1503 t->fn = fn;
1504 t->arg = arg;
1505 t->next = wl->timers;
1506 wl->timers = t;
1507
1508#ifdef DEBUG
1509 t->name = kstrdup(name, GFP_ATOMIC);
1510#endif
1511
1512 return t;
1513}
1514
1515
1516
1517
1518
1519
1520
1521void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
1522{
1523 struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
1524
1525#ifdef DEBUG
1526 if (t->set)
1527 brcms_dbg_info(t->wl->wlc->hw->d11core,
1528 "%s: Already set. Name: %s, per %d\n",
1529 __func__, t->name, periodic);
1530#endif
1531 t->ms = ms;
1532 t->periodic = (bool) periodic;
1533 if (!t->set) {
1534 t->set = true;
1535 atomic_inc(&t->wl->callbacks);
1536 }
1537
1538 ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
1539}
1540
1541
1542
1543
1544
1545
1546bool brcms_del_timer(struct brcms_timer *t)
1547{
1548 if (t->set) {
1549 t->set = false;
1550 if (!cancel_delayed_work(&t->dly_wrk))
1551 return false;
1552
1553 atomic_dec(&t->wl->callbacks);
1554 }
1555
1556 return true;
1557}
1558
1559
1560
1561
1562void brcms_free_timer(struct brcms_timer *t)
1563{
1564 struct brcms_info *wl = t->wl;
1565 struct brcms_timer *tmp;
1566
1567
1568 brcms_del_timer(t);
1569
1570 if (wl->timers == t) {
1571 wl->timers = wl->timers->next;
1572#ifdef DEBUG
1573 kfree(t->name);
1574#endif
1575 kfree(t);
1576 return;
1577
1578 }
1579
1580 tmp = wl->timers;
1581 while (tmp) {
1582 if (tmp->next == t) {
1583 tmp->next = t->next;
1584#ifdef DEBUG
1585 kfree(t->name);
1586#endif
1587 kfree(t);
1588 return;
1589 }
1590 tmp = tmp->next;
1591 }
1592
1593}
1594
1595
1596
1597
1598int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1599{
1600 int i, entry;
1601 const u8 *pdata;
1602 struct firmware_hdr *hdr;
1603 for (i = 0; i < wl->fw.fw_cnt; i++) {
1604 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1605 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1606 entry++, hdr++) {
1607 u32 len = le32_to_cpu(hdr->len);
1608 if (le32_to_cpu(hdr->idx) == idx) {
1609 pdata = wl->fw.fw_bin[i]->data +
1610 le32_to_cpu(hdr->offset);
1611 *pbuf = kvmalloc(len, GFP_KERNEL);
1612 if (*pbuf == NULL)
1613 goto fail;
1614 memcpy(*pbuf, pdata, len);
1615 return 0;
1616 }
1617 }
1618 }
1619 brcms_err(wl->wlc->hw->d11core,
1620 "ERROR: ucode buf tag:%d can not be found!\n", idx);
1621 *pbuf = NULL;
1622fail:
1623 return -ENODATA;
1624}
1625
1626
1627
1628
1629
1630int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
1631{
1632 int i, entry;
1633 const u8 *pdata;
1634 struct firmware_hdr *hdr;
1635 for (i = 0; i < wl->fw.fw_cnt; i++) {
1636 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1637 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1638 entry++, hdr++) {
1639 if (le32_to_cpu(hdr->idx) == idx) {
1640 pdata = wl->fw.fw_bin[i]->data +
1641 le32_to_cpu(hdr->offset);
1642 if (le32_to_cpu(hdr->len) != 4) {
1643 brcms_err(wl->wlc->hw->d11core,
1644 "ERROR: fw hdr len\n");
1645 return -ENOMSG;
1646 }
1647 *n_bytes = le32_to_cpu(*((__le32 *) pdata));
1648 return 0;
1649 }
1650 }
1651 }
1652 brcms_err(wl->wlc->hw->d11core,
1653 "ERROR: ucode tag:%d can not be found!\n", idx);
1654 return -ENOMSG;
1655}
1656
1657
1658
1659
1660void brcms_ucode_free_buf(void *p)
1661{
1662 kvfree(p);
1663}
1664
1665
1666
1667
1668
1669
1670
1671int brcms_check_firmwares(struct brcms_info *wl)
1672{
1673 int i;
1674 int entry;
1675 int rc = 0;
1676 const struct firmware *fw;
1677 const struct firmware *fw_hdr;
1678 struct firmware_hdr *ucode_hdr;
1679 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1680 fw = wl->fw.fw_bin[i];
1681 fw_hdr = wl->fw.fw_hdr[i];
1682 if (fw == NULL && fw_hdr == NULL) {
1683 break;
1684 } else if (fw == NULL || fw_hdr == NULL) {
1685 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1686 __func__);
1687 rc = -EBADF;
1688 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1689 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1690 "size %zu/%zu\n", __func__, fw_hdr->size,
1691 sizeof(struct firmware_hdr));
1692 rc = -EBADF;
1693 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1694 wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n",
1695 __func__, fw->size);
1696 rc = -EBADF;
1697 } else {
1698
1699 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1700 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1701 !rc; entry++, ucode_hdr++) {
1702 if (le32_to_cpu(ucode_hdr->offset) +
1703 le32_to_cpu(ucode_hdr->len) >
1704 fw->size) {
1705 wiphy_err(wl->wiphy,
1706 "%s: conflicting bin/hdr\n",
1707 __func__);
1708 rc = -EBADF;
1709 }
1710 }
1711 }
1712 }
1713 if (rc == 0 && wl->fw.fw_cnt != i) {
1714 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1715 wl->fw.fw_cnt);
1716 rc = -EBADF;
1717 }
1718 return rc;
1719}
1720
1721
1722
1723
1724bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1725 __must_hold(&wl->lock)
1726{
1727 bool blocked = brcms_c_check_radio_disabled(wl->wlc);
1728
1729 spin_unlock_bh(&wl->lock);
1730 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1731 if (blocked)
1732 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1733 spin_lock_bh(&wl->lock);
1734 return blocked;
1735}
1736
