2 * Copyright (c) 2010 Broadcom Corporation
3 * Copyright (c) 2013 Hauke Mehrtens <hauke@hauke-m.de>
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
12 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
14 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
15 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #define __UNDEF_NO_VERSION__
19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
29 #include "phy/phy_int.h"
34 #include "ucode_loader.h"
35 #include "mac80211_if.h"
40 #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
41 #define BRCMS_FLUSH_TIMEOUT 500 /* msec */
43 /* Flags we support */
44 #define MAC_FILTERS (FIF_ALLMULTI | \
48 FIF_BCN_PRBRESP_PROMISC | \
51 #define CHAN2GHZ(channel, freqency, chflags) { \
52 .band = NL80211_BAND_2GHZ, \
53 .center_freq = (freqency), \
54 .hw_value = (channel), \
56 .max_antenna_gain = 0, \
60 #define CHAN5GHZ(channel, chflags) { \
61 .band = NL80211_BAND_5GHZ, \
62 .center_freq = 5000 + 5*(channel), \
63 .hw_value = (channel), \
65 .max_antenna_gain = 0, \
69 #define RATE(rate100m, _flags) { \
70 .bitrate = (rate100m), \
72 .hw_value = (rate100m / 5), \
81 static const char * const brcms_firmwares[MAX_FW_IMAGES] = {
86 static int n_adapters_found;
88 MODULE_AUTHOR("Broadcom Corporation");
89 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
90 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
91 MODULE_LICENSE("Dual BSD/GPL");
92 /* This needs to be adjusted when brcms_firmwares changes */
93 MODULE_FIRMWARE("brcm/bcm43xx-0.fw");
94 MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw");
96 /* recognized BCMA Core IDs */
97 static struct bcma_device_id brcms_coreid_table[] = {
98 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS),
99 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS),
100 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS),
103 MODULE_DEVICE_TABLE(bcma, brcms_coreid_table);
105 #if defined(CONFIG_BRCMDBG)
107 * Module parameter for setting the debug message level. Available
108 * flags are specified by the BRCM_DL_* macros in
109 * drivers/net/wireless/brcm80211/include/defs.h.
111 module_param_named(debug, brcm_msg_level, uint, 0644);
114 static struct ieee80211_channel brcms_2ghz_chantable[] = {
115 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
116 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
117 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
118 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
119 CHAN2GHZ(5, 2432, 0),
120 CHAN2GHZ(6, 2437, 0),
121 CHAN2GHZ(7, 2442, 0),
122 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
123 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
124 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
125 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
127 IEEE80211_CHAN_NO_IR |
128 IEEE80211_CHAN_NO_HT40PLUS),
130 IEEE80211_CHAN_NO_IR |
131 IEEE80211_CHAN_NO_HT40PLUS),
133 IEEE80211_CHAN_NO_IR |
134 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
135 IEEE80211_CHAN_NO_OFDM)
138 static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
140 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
141 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
142 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
143 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
146 IEEE80211_CHAN_RADAR |
147 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
149 IEEE80211_CHAN_RADAR |
150 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
152 IEEE80211_CHAN_RADAR |
153 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
155 IEEE80211_CHAN_RADAR |
156 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
159 IEEE80211_CHAN_RADAR |
160 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
162 IEEE80211_CHAN_RADAR |
163 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
165 IEEE80211_CHAN_RADAR |
166 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
168 IEEE80211_CHAN_RADAR |
169 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
171 IEEE80211_CHAN_RADAR |
172 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
174 IEEE80211_CHAN_RADAR |
175 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
177 IEEE80211_CHAN_RADAR |
178 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
180 IEEE80211_CHAN_RADAR |
181 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
183 IEEE80211_CHAN_RADAR |
184 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
186 IEEE80211_CHAN_RADAR |
187 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
189 IEEE80211_CHAN_RADAR |
190 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS |
191 IEEE80211_CHAN_NO_HT40MINUS),
193 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
194 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
195 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
196 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
197 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
201 * The rate table is used for both 2.4G and 5G rates. The
202 * latter being a subset as it does not support CCK rates.
204 static struct ieee80211_rate legacy_ratetable[] = {
206 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
207 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
208 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
219 static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = {
220 .band = NL80211_BAND_2GHZ,
221 .channels = brcms_2ghz_chantable,
222 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
223 .bitrates = legacy_ratetable,
224 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
226 /* from include/linux/ieee80211.h */
227 .cap = IEEE80211_HT_CAP_GRN_FLD |
228 IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40,
229 .ht_supported = true,
230 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
231 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
233 /* placeholders for now */
234 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
235 .rx_highest = cpu_to_le16(500),
236 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
240 static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = {
241 .band = NL80211_BAND_5GHZ,
242 .channels = brcms_5ghz_nphy_chantable,
243 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
244 .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET,
245 .n_bitrates = ARRAY_SIZE(legacy_ratetable) -
246 BRCMS_LEGACY_5G_RATE_OFFSET,
248 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
249 IEEE80211_HT_CAP_SGI_40,
250 .ht_supported = true,
251 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
252 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
254 /* placeholders for now */
255 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
256 .rx_highest = cpu_to_le16(500),
257 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
261 /* flags the given rate in rateset as requested */
262 static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br)
266 for (i = 0; i < rs->count; i++) {
267 if (rate != (rs->rates[i] & 0x7f))
271 rs->rates[i] |= BRCMS_RATE_FLAG;
273 rs->rates[i] &= BRCMS_RATE_MASK;
279 * This function frees the WL per-device resources.
281 * This function frees resources owned by the WL device pointed to
282 * by the wl parameter.
284 * precondition: can both be called locked and unlocked
287 static void brcms_free(struct brcms_info *wl)
289 struct brcms_timer *t, *next;
291 /* free ucode data */
293 brcms_ucode_data_free(&wl->ucode);
295 free_irq(wl->irq, wl);
298 tasklet_kill(&wl->tasklet);
301 brcms_debugfs_detach(wl->pub);
302 brcms_c_module_unregister(wl->pub, "linux", wl);
305 /* free common resources */
307 brcms_c_detach(wl->wlc);
312 /* virtual interface deletion is deferred so we cannot spinwait */
314 /* wait for all pending callbacks to complete */
315 while (atomic_read(&wl->callbacks) > 0)
319 for (t = wl->timers; t; t = next) {
329 * called from both kernel as from this kernel module (error flow on attach)
330 * precondition: perimeter lock is not acquired.
332 static void brcms_remove(struct bcma_device *pdev)
334 struct ieee80211_hw *hw = bcma_get_drvdata(pdev);
335 struct brcms_info *wl = hw->priv;
338 brcms_led_unregister(wl);
339 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
340 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
341 ieee80211_unregister_hw(hw);
346 bcma_set_drvdata(pdev, NULL);
347 ieee80211_free_hw(hw);
351 * Precondition: Since this function is called in brcms_pci_probe() context,
352 * no locking is required.
354 static void brcms_release_fw(struct brcms_info *wl)
357 for (i = 0; i < MAX_FW_IMAGES; i++) {
358 release_firmware(wl->fw.fw_bin[i]);
359 release_firmware(wl->fw.fw_hdr[i]);
364 * Precondition: Since this function is called in brcms_pci_probe() context,
365 * no locking is required.
367 static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev)
370 struct device *device = &pdev->dev;
374 memset(&wl->fw, 0, sizeof(struct brcms_firmware));
375 for (i = 0; i < MAX_FW_IMAGES; i++) {
376 if (brcms_firmwares[i] == NULL)
378 sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
379 UCODE_LOADER_API_VER);
380 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
382 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
383 KBUILD_MODNAME, fw_name);
386 sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
387 UCODE_LOADER_API_VER);
388 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
390 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
391 KBUILD_MODNAME, fw_name);
394 wl->fw.hdr_num_entries[i] =
395 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
398 status = brcms_ucode_data_init(wl, &wl->ucode);
399 brcms_release_fw(wl);
403 static void brcms_ops_tx(struct ieee80211_hw *hw,
404 struct ieee80211_tx_control *control,
407 struct brcms_info *wl = hw->priv;
408 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
410 spin_lock_bh(&wl->lock);
412 brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n");
416 if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw))
417 tx_info->rate_driver_data[0] = control->sta;
419 spin_unlock_bh(&wl->lock);
422 static int brcms_ops_start(struct ieee80211_hw *hw)
424 struct brcms_info *wl = hw->priv;
428 if (!wl->ucode.bcm43xx_bomminor) {
429 err = brcms_request_fw(wl, wl->wlc->hw->d11core);
434 ieee80211_wake_queues(hw);
435 spin_lock_bh(&wl->lock);
436 blocked = brcms_rfkill_set_hw_state(wl);
437 spin_unlock_bh(&wl->lock);
439 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
441 spin_lock_bh(&wl->lock);
442 /* avoid acknowledging frames before a non-monitor device is added */
452 spin_unlock_bh(&wl->lock);
455 brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
458 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true);
462 static void brcms_ops_stop(struct ieee80211_hw *hw)
464 struct brcms_info *wl = hw->priv;
467 ieee80211_stop_queues(hw);
472 spin_lock_bh(&wl->lock);
473 status = brcms_c_chipmatch(wl->wlc->hw->d11core);
474 spin_unlock_bh(&wl->lock);
476 brcms_err(wl->wlc->hw->d11core,
477 "wl: brcms_ops_stop: chipmatch failed\n");
481 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false);
483 /* put driver in down state */
484 spin_lock_bh(&wl->lock);
486 spin_unlock_bh(&wl->lock);
490 brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
492 struct brcms_info *wl = hw->priv;
494 /* Just STA, AP and ADHOC for now */
495 if (vif->type != NL80211_IFTYPE_STATION &&
496 vif->type != NL80211_IFTYPE_AP &&
497 vif->type != NL80211_IFTYPE_ADHOC) {
498 brcms_err(wl->wlc->hw->d11core,
499 "%s: Attempt to add type %d, only STA, AP and AdHoc for now\n",
500 __func__, vif->type);
504 spin_lock_bh(&wl->lock);
506 brcms_c_mute(wl->wlc, false);
507 if (vif->type == NL80211_IFTYPE_STATION)
508 brcms_c_start_station(wl->wlc, vif->addr);
509 else if (vif->type == NL80211_IFTYPE_AP)
510 brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid,
511 vif->bss_conf.ssid, vif->bss_conf.ssid_len);
512 else if (vif->type == NL80211_IFTYPE_ADHOC)
513 brcms_c_start_adhoc(wl->wlc, vif->addr);
514 spin_unlock_bh(&wl->lock);
520 brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
524 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
526 struct ieee80211_conf *conf = &hw->conf;
527 struct brcms_info *wl = hw->priv;
528 struct bcma_device *core = wl->wlc->hw->d11core;
532 spin_lock_bh(&wl->lock);
533 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
534 brcms_c_set_beacon_listen_interval(wl->wlc,
535 conf->listen_interval);
537 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
538 brcms_dbg_info(core, "%s: change monitor mode: %s\n",
539 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
541 if (changed & IEEE80211_CONF_CHANGE_PS)
542 brcms_err(core, "%s: change power-save mode: %s (implement)\n",
543 __func__, conf->flags & IEEE80211_CONF_PS ?
546 if (changed & IEEE80211_CONF_CHANGE_POWER) {
547 err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
549 brcms_err(core, "%s: Error setting power_level\n",
553 new_int = brcms_c_get_tx_power(wl->wlc);
554 if (new_int != conf->power_level)
556 "%s: Power level req != actual, %d %d\n",
557 __func__, conf->power_level,
560 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
561 if (conf->chandef.width == NL80211_CHAN_WIDTH_20 ||
562 conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
563 err = brcms_c_set_channel(wl->wlc,
564 conf->chandef.chan->hw_value);
568 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
569 err = brcms_c_set_rate_limit(wl->wlc,
570 conf->short_frame_max_tx_count,
571 conf->long_frame_max_tx_count);
574 spin_unlock_bh(&wl->lock);
579 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
580 struct ieee80211_vif *vif,
581 struct ieee80211_bss_conf *info, u32 changed)
583 struct brcms_info *wl = hw->priv;
584 struct bcma_device *core = wl->wlc->hw->d11core;
586 if (changed & BSS_CHANGED_ASSOC) {
587 /* association status changed (associated/disassociated)
588 * also implies a change in the AID.
590 brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
591 __func__, info->assoc ? "" : "dis");
592 spin_lock_bh(&wl->lock);
593 brcms_c_associate_upd(wl->wlc, info->assoc);
594 spin_unlock_bh(&wl->lock);
596 if (changed & BSS_CHANGED_ERP_SLOT) {
599 /* slot timing changed */
600 if (info->use_short_slot)
604 spin_lock_bh(&wl->lock);
605 brcms_c_set_shortslot_override(wl->wlc, val);
606 spin_unlock_bh(&wl->lock);
609 if (changed & BSS_CHANGED_HT) {
610 /* 802.11n parameters changed */
611 u16 mode = info->ht_operation_mode;
613 spin_lock_bh(&wl->lock);
614 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
615 mode & IEEE80211_HT_OP_MODE_PROTECTION);
616 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
617 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
618 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
619 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
620 spin_unlock_bh(&wl->lock);
622 if (changed & BSS_CHANGED_BASIC_RATES) {
623 struct ieee80211_supported_band *bi;
626 struct brcm_rateset rs;
629 /* retrieve the current rates */
630 spin_lock_bh(&wl->lock);
631 brcms_c_get_current_rateset(wl->wlc, &rs);
632 spin_unlock_bh(&wl->lock);
634 br_mask = info->basic_rates;
635 bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
636 for (i = 0; i < bi->n_bitrates; i++) {
637 /* convert to internal rate value */
638 rate = (bi->bitrates[i].bitrate << 1) / 10;
640 /* set/clear basic rate flag */
641 brcms_set_basic_rate(&rs, rate, br_mask & 1);
645 /* update the rate set */
646 spin_lock_bh(&wl->lock);
647 error = brcms_c_set_rateset(wl->wlc, &rs);
648 spin_unlock_bh(&wl->lock);
650 brcms_err(core, "changing basic rates failed: %d\n",
653 if (changed & BSS_CHANGED_BEACON_INT) {
654 /* Beacon interval changed */
655 spin_lock_bh(&wl->lock);
656 brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
657 spin_unlock_bh(&wl->lock);
659 if (changed & BSS_CHANGED_BSSID) {
660 /* BSSID changed, for whatever reason (IBSS and managed mode) */
661 spin_lock_bh(&wl->lock);
662 brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
663 spin_unlock_bh(&wl->lock);
665 if (changed & BSS_CHANGED_SSID) {
666 /* BSSID changed, for whatever reason (IBSS and managed mode) */
667 spin_lock_bh(&wl->lock);
668 brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len);
669 spin_unlock_bh(&wl->lock);
671 if (changed & BSS_CHANGED_BEACON) {
672 /* Beacon data changed, retrieve new beacon (beaconing modes) */
673 struct sk_buff *beacon;
676 spin_lock_bh(&wl->lock);
677 beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL);
678 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
680 spin_unlock_bh(&wl->lock);
683 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
684 struct sk_buff *probe_resp;
686 spin_lock_bh(&wl->lock);
687 probe_resp = ieee80211_proberesp_get(hw, vif);
688 brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
689 spin_unlock_bh(&wl->lock);
692 if (changed & BSS_CHANGED_BEACON_ENABLED) {
693 /* Beaconing should be enabled/disabled (beaconing modes) */
694 brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
695 info->enable_beacon ? "true" : "false");
696 if (info->enable_beacon &&
697 hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) {
698 brcms_c_enable_probe_resp(wl->wlc, true);
700 brcms_c_enable_probe_resp(wl->wlc, false);
704 if (changed & BSS_CHANGED_CQM) {
705 /* Connection quality monitor config changed */
706 brcms_err(core, "%s: cqm change: threshold %d, hys %d "
707 " (implement)\n", __func__, info->cqm_rssi_thold,
708 info->cqm_rssi_hyst);
711 if (changed & BSS_CHANGED_IBSS) {
712 /* IBSS join status changed */
713 brcms_err(core, "%s: IBSS joined: %s (implement)\n",
714 __func__, info->ibss_joined ? "true" : "false");
717 if (changed & BSS_CHANGED_ARP_FILTER) {
718 /* Hardware ARP filter address list or state changed */
719 brcms_err(core, "%s: arp filtering: %d addresses"
720 " (implement)\n", __func__, info->arp_addr_cnt);
723 if (changed & BSS_CHANGED_QOS) {
725 * QoS for this association was enabled/disabled.
726 * Note that it is only ever disabled for station mode.
728 brcms_err(core, "%s: qos enabled: %s (implement)\n",
729 __func__, info->qos ? "true" : "false");
735 brcms_ops_configure_filter(struct ieee80211_hw *hw,
736 unsigned int changed_flags,
737 unsigned int *total_flags, u64 multicast)
739 struct brcms_info *wl = hw->priv;
740 struct bcma_device *core = wl->wlc->hw->d11core;
742 changed_flags &= MAC_FILTERS;
743 *total_flags &= MAC_FILTERS;
745 if (changed_flags & FIF_ALLMULTI)
746 brcms_dbg_info(core, "FIF_ALLMULTI\n");
747 if (changed_flags & FIF_FCSFAIL)
748 brcms_dbg_info(core, "FIF_FCSFAIL\n");
749 if (changed_flags & FIF_CONTROL)
750 brcms_dbg_info(core, "FIF_CONTROL\n");
751 if (changed_flags & FIF_OTHER_BSS)
752 brcms_dbg_info(core, "FIF_OTHER_BSS\n");
753 if (changed_flags & FIF_PSPOLL)
754 brcms_dbg_info(core, "FIF_PSPOLL\n");
755 if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
756 brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n");
758 spin_lock_bh(&wl->lock);
759 brcms_c_mac_promisc(wl->wlc, *total_flags);
760 spin_unlock_bh(&wl->lock);
764 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw,
765 struct ieee80211_vif *vif,
768 struct brcms_info *wl = hw->priv;
769 spin_lock_bh(&wl->lock);
770 brcms_c_scan_start(wl->wlc);
771 spin_unlock_bh(&wl->lock);
775 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw,
776 struct ieee80211_vif *vif)
778 struct brcms_info *wl = hw->priv;
779 spin_lock_bh(&wl->lock);
780 brcms_c_scan_stop(wl->wlc);
781 spin_unlock_bh(&wl->lock);
786 brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
787 const struct ieee80211_tx_queue_params *params)
789 struct brcms_info *wl = hw->priv;
791 spin_lock_bh(&wl->lock);
792 brcms_c_wme_setparams(wl->wlc, queue, params, true);
793 spin_unlock_bh(&wl->lock);
799 brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
800 struct ieee80211_sta *sta)
802 struct brcms_info *wl = hw->priv;
803 struct scb *scb = &wl->wlc->pri_scb;
805 brcms_c_init_scb(scb);
807 wl->pub->global_ampdu = &(scb->scb_ampdu);
808 wl->pub->global_ampdu->scb = scb;
809 wl->pub->global_ampdu->max_pdu = 16;
812 * minstrel_ht initiates addBA on our behalf by calling
813 * ieee80211_start_tx_ba_session()
819 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
820 struct ieee80211_vif *vif,
821 struct ieee80211_ampdu_params *params)
823 struct brcms_info *wl = hw->priv;
824 struct scb *scb = &wl->wlc->pri_scb;
826 struct ieee80211_sta *sta = params->sta;
827 enum ieee80211_ampdu_mlme_action action = params->action;
828 u16 tid = params->tid;
829 u8 buf_size = params->buf_size;
831 if (WARN_ON(scb->magic != SCB_MAGIC))
834 case IEEE80211_AMPDU_RX_START:
836 case IEEE80211_AMPDU_RX_STOP:
838 case IEEE80211_AMPDU_TX_START:
839 spin_lock_bh(&wl->lock);
840 status = brcms_c_aggregatable(wl->wlc, tid);
841 spin_unlock_bh(&wl->lock);
843 brcms_err(wl->wlc->hw->d11core,
844 "START: tid %d is not agg\'able\n", tid);
847 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
850 case IEEE80211_AMPDU_TX_STOP_CONT:
851 case IEEE80211_AMPDU_TX_STOP_FLUSH:
852 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
853 spin_lock_bh(&wl->lock);
854 brcms_c_ampdu_flush(wl->wlc, sta, tid);
855 spin_unlock_bh(&wl->lock);
856 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
858 case IEEE80211_AMPDU_TX_OPERATIONAL:
860 * BA window size from ADDBA response ('buf_size') defines how
861 * many outstanding MPDUs are allowed for the BA stream by
862 * recipient and traffic class. 'ampdu_factor' gives maximum
865 spin_lock_bh(&wl->lock);
866 brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
867 (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
868 sta->ht_cap.ampdu_factor)) - 1);
869 spin_unlock_bh(&wl->lock);
870 /* Power save wakeup */
873 brcms_err(wl->wlc->hw->d11core,
874 "%s: Invalid command, ignoring\n", __func__);
880 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
882 struct brcms_info *wl = hw->priv;
885 spin_lock_bh(&wl->lock);
886 blocked = brcms_c_check_radio_disabled(wl->wlc);
887 spin_unlock_bh(&wl->lock);
889 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
892 static bool brcms_tx_flush_completed(struct brcms_info *wl)
896 spin_lock_bh(&wl->lock);
897 result = brcms_c_tx_flush_completed(wl->wlc);
898 spin_unlock_bh(&wl->lock);
902 static void brcms_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
903 u32 queues, bool drop)
905 struct brcms_info *wl = hw->priv;
908 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
910 ret = wait_event_timeout(wl->tx_flush_wq,
911 brcms_tx_flush_completed(wl),
912 msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
914 brcms_dbg_mac80211(wl->wlc->hw->d11core,
915 "ret=%d\n", jiffies_to_msecs(ret));
918 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
920 struct brcms_info *wl = hw->priv;
923 spin_lock_bh(&wl->lock);
924 tsf = brcms_c_tsf_get(wl->wlc);
925 spin_unlock_bh(&wl->lock);
930 static void brcms_ops_set_tsf(struct ieee80211_hw *hw,
931 struct ieee80211_vif *vif, u64 tsf)
933 struct brcms_info *wl = hw->priv;
935 spin_lock_bh(&wl->lock);
936 brcms_c_tsf_set(wl->wlc, tsf);
937 spin_unlock_bh(&wl->lock);
940 static const struct ieee80211_ops brcms_ops = {
942 .start = brcms_ops_start,
943 .stop = brcms_ops_stop,
944 .add_interface = brcms_ops_add_interface,
945 .remove_interface = brcms_ops_remove_interface,
946 .config = brcms_ops_config,
947 .bss_info_changed = brcms_ops_bss_info_changed,
948 .configure_filter = brcms_ops_configure_filter,
949 .sw_scan_start = brcms_ops_sw_scan_start,
950 .sw_scan_complete = brcms_ops_sw_scan_complete,
951 .conf_tx = brcms_ops_conf_tx,
952 .sta_add = brcms_ops_sta_add,
953 .ampdu_action = brcms_ops_ampdu_action,
954 .rfkill_poll = brcms_ops_rfkill_poll,
955 .flush = brcms_ops_flush,
956 .get_tsf = brcms_ops_get_tsf,
957 .set_tsf = brcms_ops_set_tsf,
960 void brcms_dpc(unsigned long data)
962 struct brcms_info *wl;
964 wl = (struct brcms_info *) data;
966 spin_lock_bh(&wl->lock);
968 /* call the common second level interrupt handler */
973 spin_lock_irqsave(&wl->isr_lock, flags);
974 brcms_c_intrsupd(wl->wlc);
975 spin_unlock_irqrestore(&wl->isr_lock, flags);
978 wl->resched = brcms_c_dpc(wl->wlc, true);
981 /* brcms_c_dpc() may bring the driver down */
985 /* re-schedule dpc */
987 tasklet_schedule(&wl->tasklet);
989 /* re-enable interrupts */
993 spin_unlock_bh(&wl->lock);
994 wake_up(&wl->tx_flush_wq);
997 static irqreturn_t brcms_isr(int irq, void *dev_id)
999 struct brcms_info *wl;
1000 irqreturn_t ret = IRQ_NONE;
1002 wl = (struct brcms_info *) dev_id;
1004 spin_lock(&wl->isr_lock);
1006 /* call common first level interrupt handler */
1007 if (brcms_c_isr(wl->wlc)) {
1008 /* schedule second level handler */
1009 tasklet_schedule(&wl->tasklet);
1013 spin_unlock(&wl->isr_lock);
1019 * is called in brcms_pci_probe() context, therefore no locking required.
1021 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1023 struct brcms_info *wl = hw->priv;
1024 struct brcms_c_info *wlc = wl->wlc;
1025 struct ieee80211_supported_band *band;
1029 hw->wiphy->bands[NL80211_BAND_2GHZ] = NULL;
1030 hw->wiphy->bands[NL80211_BAND_5GHZ] = NULL;
1032 phy_type = brcms_c_get_phy_type(wl->wlc, 0);
1033 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1034 band = &wlc->bandstate[BAND_2G_INDEX]->band;
1035 *band = brcms_band_2GHz_nphy_template;
1036 if (phy_type == PHY_TYPE_LCN) {
1038 band->ht_cap.mcs.rx_mask[1] = 0;
1039 band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
1041 hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
1046 /* Assume all bands use the same phy. True for 11n devices. */
1047 if (wl->pub->_nbands > 1) {
1049 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1050 band = &wlc->bandstate[BAND_5G_INDEX]->band;
1051 *band = brcms_band_5GHz_nphy_template;
1052 hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
1061 * is called in brcms_pci_probe() context, therefore no locking required.
1063 static int ieee_hw_init(struct ieee80211_hw *hw)
1065 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
1066 ieee80211_hw_set(hw, SIGNAL_DBM);
1067 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
1069 hw->extra_tx_headroom = brcms_c_get_header_len();
1070 hw->queues = N_TX_QUEUES;
1071 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1073 /* channel change time is dependent on chip and band */
1074 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1075 BIT(NL80211_IFTYPE_AP) |
1076 BIT(NL80211_IFTYPE_ADHOC);
1079 * deactivate sending probe responses by ucude, because this will
1080 * cause problems when WPS is used.
1082 * hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1085 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1087 hw->rate_control_algorithm = "minstrel_ht";
1089 hw->sta_data_size = 0;
1090 return ieee_hw_rate_init(hw);
1094 * attach to the WL device.
1096 * Attach to the WL device identified by vendor and device parameters.
1097 * regs is a host accessible memory address pointing to WL device registers.
1099 * is called in brcms_bcma_probe() context, therefore no locking required.
1101 static struct brcms_info *brcms_attach(struct bcma_device *pdev)
1103 struct brcms_info *wl = NULL;
1105 struct ieee80211_hw *hw;
1108 unit = n_adapters_found;
1114 /* allocate private info */
1115 hw = bcma_get_drvdata(pdev);
1118 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
1120 wl->wiphy = hw->wiphy;
1122 atomic_set(&wl->callbacks, 0);
1124 init_waitqueue_head(&wl->tx_flush_wq);
1126 /* setup the bottom half handler */
1127 tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
1129 spin_lock_init(&wl->lock);
1130 spin_lock_init(&wl->isr_lock);
1132 /* common load-time initialization */
1133 wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
1135 wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
1136 KBUILD_MODNAME, err);
1139 wl->pub = brcms_c_pub(wl->wlc);
1141 wl->pub->ieee_hw = hw;
1143 /* register our interrupt handler */
1144 if (request_irq(pdev->irq, brcms_isr,
1145 IRQF_SHARED, KBUILD_MODNAME, wl)) {
1146 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
1149 wl->irq = pdev->irq;
1151 /* register module */
1152 brcms_c_module_register(wl->pub, "linux", wl, NULL);
1154 if (ieee_hw_init(hw)) {
1155 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
1160 brcms_c_regd_init(wl->wlc);
1162 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
1163 if (WARN_ON(!is_valid_ether_addr(perm)))
1165 SET_IEEE80211_PERM_ADDR(hw, perm);
1167 err = ieee80211_register_hw(hw);
1169 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
1170 "%d\n", __func__, err);
1172 if (wl->pub->srom_ccode[0] &&
1173 regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
1174 wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
1176 brcms_debugfs_attach(wl->pub);
1177 brcms_debugfs_create_files(wl->pub);
1189 * determines if a device is a WL device, and if so, attaches it.
1191 * This function determines if a device pointed to by pdev is a WL device,
1192 * and if so, performs a brcms_attach() on it.
1194 * Perimeter lock is initialized in the course of this function.
1196 static int brcms_bcma_probe(struct bcma_device *pdev)
1198 struct brcms_info *wl;
1199 struct ieee80211_hw *hw;
1201 dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
1202 pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
1205 if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
1206 (pdev->id.id != BCMA_CORE_80211))
1209 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1211 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1215 SET_IEEE80211_DEV(hw, &pdev->dev);
1217 bcma_set_drvdata(pdev, hw);
1219 memset(hw->priv, 0, sizeof(*wl));
1221 wl = brcms_attach(pdev);
1223 pr_err("%s: brcms_attach failed!\n", __func__);
1226 brcms_led_register(wl);
1231 static int brcms_suspend(struct bcma_device *pdev)
1233 struct brcms_info *wl;
1234 struct ieee80211_hw *hw;
1236 hw = bcma_get_drvdata(pdev);
1239 pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
1244 /* only need to flag hw is down for proper resume */
1245 spin_lock_bh(&wl->lock);
1246 wl->pub->hw_up = false;
1247 spin_unlock_bh(&wl->lock);
1249 brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
1254 static int brcms_resume(struct bcma_device *pdev)
1259 static struct bcma_driver brcms_bcma_driver = {
1260 .name = KBUILD_MODNAME,
1261 .probe = brcms_bcma_probe,
1262 .suspend = brcms_suspend,
1263 .resume = brcms_resume,
1264 .remove = brcms_remove,
1265 .id_table = brcms_coreid_table,
1269 * This is the main entry point for the brcmsmac driver.
1271 * This function is scheduled upon module initialization and
1272 * does the driver registration, which result in brcms_bcma_probe()
1273 * call resulting in the driver bringup.
1275 static void brcms_driver_init(struct work_struct *work)
1279 error = bcma_driver_register(&brcms_bcma_driver);
1281 pr_err("%s: register returned %d\n", __func__, error);
1284 static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
1286 static int __init brcms_module_init(void)
1288 brcms_debugfs_init();
1289 if (!schedule_work(&brcms_driver_work))
1296 * This function unloads the brcmsmac driver from the system.
1298 * This function unconditionally unloads the brcmsmac driver module from the
1302 static void __exit brcms_module_exit(void)
1304 cancel_work_sync(&brcms_driver_work);
1305 bcma_driver_unregister(&brcms_bcma_driver);
1306 brcms_debugfs_exit();
1309 module_init(brcms_module_init);
1310 module_exit(brcms_module_exit);
1313 * precondition: perimeter lock has been acquired
1315 void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1316 bool state, int prio)
1318 brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
1322 * precondition: perimeter lock has been acquired
1324 void brcms_init(struct brcms_info *wl)
1326 brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
1329 brcms_c_init(wl->wlc, wl->mute_tx);
1333 * precondition: perimeter lock has been acquired
1335 uint brcms_reset(struct brcms_info *wl)
1337 brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
1338 brcms_c_reset(wl->wlc);
1340 /* dpc will not be rescheduled */
1341 wl->resched = false;
1343 /* inform publicly that interface is down */
1344 wl->pub->up = false;
1349 void brcms_fatal_error(struct brcms_info *wl)
1351 brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
1352 wl->wlc->pub->unit);
1354 ieee80211_restart_hw(wl->pub->ieee_hw);
1358 * These are interrupt on/off entry points. Disable interrupts
1359 * during interrupt state transition.
1361 void brcms_intrson(struct brcms_info *wl)
1363 unsigned long flags;
1365 spin_lock_irqsave(&wl->isr_lock, flags);
1366 brcms_c_intrson(wl->wlc);
1367 spin_unlock_irqrestore(&wl->isr_lock, flags);
1370 u32 brcms_intrsoff(struct brcms_info *wl)
1372 unsigned long flags;
1375 spin_lock_irqsave(&wl->isr_lock, flags);
1376 status = brcms_c_intrsoff(wl->wlc);
1377 spin_unlock_irqrestore(&wl->isr_lock, flags);
1381 void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1383 unsigned long flags;
1385 spin_lock_irqsave(&wl->isr_lock, flags);
1386 brcms_c_intrsrestore(wl->wlc, macintmask);
1387 spin_unlock_irqrestore(&wl->isr_lock, flags);
1391 * precondition: perimeter lock has been acquired
1393 int brcms_up(struct brcms_info *wl)
1400 error = brcms_c_up(wl->wlc);
1406 * precondition: perimeter lock has been acquired
1408 void brcms_down(struct brcms_info *wl)
1410 uint callbacks, ret_val = 0;
1412 /* call common down function */
1413 ret_val = brcms_c_down(wl->wlc);
1414 callbacks = atomic_read(&wl->callbacks) - ret_val;
1416 /* wait for down callbacks to complete */
1417 spin_unlock_bh(&wl->lock);
1419 /* For HIGH_only driver, it's important to actually schedule other work,
1420 * not just spin wait since everything runs at schedule level
1422 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1424 spin_lock_bh(&wl->lock);
1428 * precondition: perimeter lock is not acquired
1430 static void _brcms_timer(struct work_struct *work)
1432 struct brcms_timer *t = container_of(work, struct brcms_timer,
1435 spin_lock_bh(&t->wl->lock);
1439 atomic_inc(&t->wl->callbacks);
1440 ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
1442 msecs_to_jiffies(t->ms));
1450 atomic_dec(&t->wl->callbacks);
1452 spin_unlock_bh(&t->wl->lock);
1456 * Adds a timer to the list. Caller supplies a timer function.
1457 * Is called from wlc.
1459 * precondition: perimeter lock has been acquired
1461 struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1462 void (*fn) (void *arg),
1463 void *arg, const char *name)
1465 struct brcms_timer *t;
1467 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1471 INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
1475 t->next = wl->timers;
1479 t->name = kstrdup(name, GFP_ATOMIC);
1486 * adds only the kernel timer since it's going to be more accurate
1487 * as well as it's easier to make it periodic
1489 * precondition: perimeter lock has been acquired
1491 void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
1493 struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
1497 brcms_dbg_info(t->wl->wlc->hw->d11core,
1498 "%s: Already set. Name: %s, per %d\n",
1499 __func__, t->name, periodic);
1502 t->periodic = (bool) periodic;
1505 atomic_inc(&t->wl->callbacks);
1508 ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
1512 * return true if timer successfully deleted, false if still pending
1514 * precondition: perimeter lock has been acquired
1516 bool brcms_del_timer(struct brcms_timer *t)
1520 if (!cancel_delayed_work(&t->dly_wrk))
1523 atomic_dec(&t->wl->callbacks);
1530 * precondition: perimeter lock has been acquired
1532 void brcms_free_timer(struct brcms_timer *t)
1534 struct brcms_info *wl = t->wl;
1535 struct brcms_timer *tmp;
1537 /* delete the timer in case it is active */
1540 if (wl->timers == t) {
1541 wl->timers = wl->timers->next;
1552 if (tmp->next == t) {
1553 tmp->next = t->next;
1566 * precondition: no locking required
1568 int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1572 struct firmware_hdr *hdr;
1573 for (i = 0; i < wl->fw.fw_cnt; i++) {
1574 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1575 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1577 u32 len = le32_to_cpu(hdr->len);
1578 if (le32_to_cpu(hdr->idx) == idx) {
1579 pdata = wl->fw.fw_bin[i]->data +
1580 le32_to_cpu(hdr->offset);
1581 *pbuf = kmemdup(pdata, len, GFP_KERNEL);
1589 brcms_err(wl->wlc->hw->d11core,
1590 "ERROR: ucode buf tag:%d can not be found!\n", idx);
1597 * Precondition: Since this function is called in brcms_bcma_probe() context,
1598 * no locking is required.
1600 int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
1604 struct firmware_hdr *hdr;
1605 for (i = 0; i < wl->fw.fw_cnt; i++) {
1606 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1607 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1609 if (le32_to_cpu(hdr->idx) == idx) {
1610 pdata = wl->fw.fw_bin[i]->data +
1611 le32_to_cpu(hdr->offset);
1612 if (le32_to_cpu(hdr->len) != 4) {
1613 brcms_err(wl->wlc->hw->d11core,
1614 "ERROR: fw hdr len\n");
1617 *n_bytes = le32_to_cpu(*((__le32 *) pdata));
1622 brcms_err(wl->wlc->hw->d11core,
1623 "ERROR: ucode tag:%d can not be found!\n", idx);
1628 * precondition: can both be called locked and unlocked
1630 void brcms_ucode_free_buf(void *p)
1636 * checks validity of all firmware images loaded from user space
1638 * Precondition: Since this function is called in brcms_bcma_probe() context,
1639 * no locking is required.
1641 int brcms_check_firmwares(struct brcms_info *wl)
1646 const struct firmware *fw;
1647 const struct firmware *fw_hdr;
1648 struct firmware_hdr *ucode_hdr;
1649 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1650 fw = wl->fw.fw_bin[i];
1651 fw_hdr = wl->fw.fw_hdr[i];
1652 if (fw == NULL && fw_hdr == NULL) {
1654 } else if (fw == NULL || fw_hdr == NULL) {
1655 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1658 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1659 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1660 "size %zu/%zu\n", __func__, fw_hdr->size,
1661 sizeof(struct firmware_hdr));
1663 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1664 wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n",
1665 __func__, fw->size);
1668 /* check if ucode section overruns firmware image */
1669 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1670 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1671 !rc; entry++, ucode_hdr++) {
1672 if (le32_to_cpu(ucode_hdr->offset) +
1673 le32_to_cpu(ucode_hdr->len) >
1675 wiphy_err(wl->wiphy,
1676 "%s: conflicting bin/hdr\n",
1683 if (rc == 0 && wl->fw.fw_cnt != i) {
1684 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1692 * precondition: perimeter lock has been acquired
1694 bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1696 bool blocked = brcms_c_check_radio_disabled(wl->wlc);
1698 spin_unlock_bh(&wl->lock);
1699 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1701 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1702 spin_lock_bh(&wl->lock);