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_LICENSE("Dual BSD/GPL");
91 /* This needs to be adjusted when brcms_firmwares changes */
94 /* recognized BCMA Core IDs */
95 static struct bcma_device_id brcms_coreid_table[] = {
96 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS),
97 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS),
98 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS),
101 MODULE_DEVICE_TABLE(bcma, brcms_coreid_table);
103 #if defined(CONFIG_BRCMDBG)
105 * Module parameter for setting the debug message level. Available
106 * flags are specified by the BRCM_DL_* macros in
107 * drivers/net/wireless/brcm80211/include/defs.h.
109 module_param_named(debug, brcm_msg_level, uint, 0644);
112 static struct ieee80211_channel brcms_2ghz_chantable[] = {
113 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
114 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
115 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
116 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
117 CHAN2GHZ(5, 2432, 0),
118 CHAN2GHZ(6, 2437, 0),
119 CHAN2GHZ(7, 2442, 0),
120 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
121 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
122 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
123 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
125 IEEE80211_CHAN_NO_IR |
126 IEEE80211_CHAN_NO_HT40PLUS),
128 IEEE80211_CHAN_NO_IR |
129 IEEE80211_CHAN_NO_HT40PLUS),
131 IEEE80211_CHAN_NO_IR |
132 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
133 IEEE80211_CHAN_NO_OFDM)
136 static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
138 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
139 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
140 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
141 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
144 IEEE80211_CHAN_RADAR |
145 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
147 IEEE80211_CHAN_RADAR |
148 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
150 IEEE80211_CHAN_RADAR |
151 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
153 IEEE80211_CHAN_RADAR |
154 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
157 IEEE80211_CHAN_RADAR |
158 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
160 IEEE80211_CHAN_RADAR |
161 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
163 IEEE80211_CHAN_RADAR |
164 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
166 IEEE80211_CHAN_RADAR |
167 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
169 IEEE80211_CHAN_RADAR |
170 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
172 IEEE80211_CHAN_RADAR |
173 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
175 IEEE80211_CHAN_RADAR |
176 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
178 IEEE80211_CHAN_RADAR |
179 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
181 IEEE80211_CHAN_RADAR |
182 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
184 IEEE80211_CHAN_RADAR |
185 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
187 IEEE80211_CHAN_RADAR |
188 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS |
189 IEEE80211_CHAN_NO_HT40MINUS),
191 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
192 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
193 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
194 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
195 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
199 * The rate table is used for both 2.4G and 5G rates. The
200 * latter being a subset as it does not support CCK rates.
202 static struct ieee80211_rate legacy_ratetable[] = {
204 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
205 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
206 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
217 static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = {
218 .band = NL80211_BAND_2GHZ,
219 .channels = brcms_2ghz_chantable,
220 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
221 .bitrates = legacy_ratetable,
222 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
224 /* from include/linux/ieee80211.h */
225 .cap = IEEE80211_HT_CAP_GRN_FLD |
226 IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40,
227 .ht_supported = true,
228 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
229 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
231 /* placeholders for now */
232 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
233 .rx_highest = cpu_to_le16(500),
234 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
238 static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = {
239 .band = NL80211_BAND_5GHZ,
240 .channels = brcms_5ghz_nphy_chantable,
241 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
242 .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET,
243 .n_bitrates = ARRAY_SIZE(legacy_ratetable) -
244 BRCMS_LEGACY_5G_RATE_OFFSET,
246 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
247 IEEE80211_HT_CAP_SGI_40,
248 .ht_supported = true,
249 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
250 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
252 /* placeholders for now */
253 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
254 .rx_highest = cpu_to_le16(500),
255 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
259 /* flags the given rate in rateset as requested */
260 static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br)
264 for (i = 0; i < rs->count; i++) {
265 if (rate != (rs->rates[i] & 0x7f))
269 rs->rates[i] |= BRCMS_RATE_FLAG;
271 rs->rates[i] &= BRCMS_RATE_MASK;
277 * This function frees the WL per-device resources.
279 * This function frees resources owned by the WL device pointed to
280 * by the wl parameter.
282 * precondition: can both be called locked and unlocked
284 static void brcms_free(struct brcms_info *wl)
286 struct brcms_timer *t, *next;
288 /* free ucode data */
290 brcms_ucode_data_free(&wl->ucode);
292 free_irq(wl->irq, wl);
295 tasklet_kill(&wl->tasklet);
298 brcms_debugfs_detach(wl->pub);
299 brcms_c_module_unregister(wl->pub, "linux", wl);
302 /* free common resources */
304 brcms_c_detach(wl->wlc);
309 /* virtual interface deletion is deferred so we cannot spinwait */
311 /* wait for all pending callbacks to complete */
312 while (atomic_read(&wl->callbacks) > 0)
316 for (t = wl->timers; t; t = next) {
326 * called from both kernel as from this kernel module (error flow on attach)
327 * precondition: perimeter lock is not acquired.
329 static void brcms_remove(struct bcma_device *pdev)
331 struct ieee80211_hw *hw = bcma_get_drvdata(pdev);
332 struct brcms_info *wl = hw->priv;
335 brcms_led_unregister(wl);
336 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
337 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
338 ieee80211_unregister_hw(hw);
343 bcma_set_drvdata(pdev, NULL);
344 ieee80211_free_hw(hw);
348 * Precondition: Since this function is called in brcms_pci_probe() context,
349 * no locking is required.
351 static void brcms_release_fw(struct brcms_info *wl)
354 for (i = 0; i < MAX_FW_IMAGES; i++) {
355 release_firmware(wl->fw.fw_bin[i]);
356 release_firmware(wl->fw.fw_hdr[i]);
361 * Precondition: Since this function is called in brcms_pci_probe() context,
362 * no locking is required.
364 static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev)
367 struct device *device = &pdev->dev;
371 memset(&wl->fw, 0, sizeof(struct brcms_firmware));
372 for (i = 0; i < MAX_FW_IMAGES; i++) {
373 if (brcms_firmwares[i] == NULL)
375 sprintf(fw_name, "/*(DEBLOBBED)*/", brcms_firmwares[i],
376 UCODE_LOADER_API_VER);
377 status = reject_firmware(&wl->fw.fw_bin[i], fw_name, device);
379 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
380 KBUILD_MODNAME, fw_name);
383 sprintf(fw_name, "/*(DEBLOBBED)*/", brcms_firmwares[i],
384 UCODE_LOADER_API_VER);
385 status = reject_firmware(&wl->fw.fw_hdr[i], fw_name, device);
387 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
388 KBUILD_MODNAME, fw_name);
391 wl->fw.hdr_num_entries[i] =
392 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
395 status = brcms_ucode_data_init(wl, &wl->ucode);
396 brcms_release_fw(wl);
400 static void brcms_ops_tx(struct ieee80211_hw *hw,
401 struct ieee80211_tx_control *control,
404 struct brcms_info *wl = hw->priv;
405 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
407 spin_lock_bh(&wl->lock);
409 brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n");
413 if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw))
414 tx_info->rate_driver_data[0] = control->sta;
416 spin_unlock_bh(&wl->lock);
419 static int brcms_ops_start(struct ieee80211_hw *hw)
421 struct brcms_info *wl = hw->priv;
425 if (!wl->ucode.bcm43xx_bomminor) {
426 err = brcms_request_fw(wl, wl->wlc->hw->d11core);
431 ieee80211_wake_queues(hw);
432 spin_lock_bh(&wl->lock);
433 blocked = brcms_rfkill_set_hw_state(wl);
434 spin_unlock_bh(&wl->lock);
436 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
438 spin_lock_bh(&wl->lock);
439 /* avoid acknowledging frames before a non-monitor device is added */
449 spin_unlock_bh(&wl->lock);
452 brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
455 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true);
459 static void brcms_ops_stop(struct ieee80211_hw *hw)
461 struct brcms_info *wl = hw->priv;
464 ieee80211_stop_queues(hw);
469 spin_lock_bh(&wl->lock);
470 status = brcms_c_chipmatch(wl->wlc->hw->d11core);
471 spin_unlock_bh(&wl->lock);
473 brcms_err(wl->wlc->hw->d11core,
474 "wl: brcms_ops_stop: chipmatch failed\n");
478 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false);
480 /* put driver in down state */
481 spin_lock_bh(&wl->lock);
483 spin_unlock_bh(&wl->lock);
487 brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
489 struct brcms_info *wl = hw->priv;
491 /* Just STA, AP and ADHOC for now */
492 if (vif->type != NL80211_IFTYPE_STATION &&
493 vif->type != NL80211_IFTYPE_AP &&
494 vif->type != NL80211_IFTYPE_ADHOC) {
495 brcms_err(wl->wlc->hw->d11core,
496 "%s: Attempt to add type %d, only STA, AP and AdHoc for now\n",
497 __func__, vif->type);
501 spin_lock_bh(&wl->lock);
504 brcms_c_mute(wl->wlc, false);
505 if (vif->type == NL80211_IFTYPE_STATION)
506 brcms_c_start_station(wl->wlc, vif->addr);
507 else if (vif->type == NL80211_IFTYPE_AP)
508 brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid,
509 vif->bss_conf.ssid, vif->bss_conf.ssid_len);
510 else if (vif->type == NL80211_IFTYPE_ADHOC)
511 brcms_c_start_adhoc(wl->wlc, vif->addr);
512 spin_unlock_bh(&wl->lock);
518 brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
520 struct brcms_info *wl = hw->priv;
522 spin_lock_bh(&wl->lock);
524 spin_unlock_bh(&wl->lock);
527 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
529 struct ieee80211_conf *conf = &hw->conf;
530 struct brcms_info *wl = hw->priv;
531 struct bcma_device *core = wl->wlc->hw->d11core;
535 spin_lock_bh(&wl->lock);
536 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
537 brcms_c_set_beacon_listen_interval(wl->wlc,
538 conf->listen_interval);
540 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
541 brcms_dbg_info(core, "%s: change monitor mode: %s\n",
542 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
544 if (changed & IEEE80211_CONF_CHANGE_PS)
545 brcms_err(core, "%s: change power-save mode: %s (implement)\n",
546 __func__, conf->flags & IEEE80211_CONF_PS ?
549 if (changed & IEEE80211_CONF_CHANGE_POWER) {
550 err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
552 brcms_err(core, "%s: Error setting power_level\n",
556 new_int = brcms_c_get_tx_power(wl->wlc);
557 if (new_int != conf->power_level)
559 "%s: Power level req != actual, %d %d\n",
560 __func__, conf->power_level,
563 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
564 if (conf->chandef.width == NL80211_CHAN_WIDTH_20 ||
565 conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
566 err = brcms_c_set_channel(wl->wlc,
567 conf->chandef.chan->hw_value);
571 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
572 err = brcms_c_set_rate_limit(wl->wlc,
573 conf->short_frame_max_tx_count,
574 conf->long_frame_max_tx_count);
577 spin_unlock_bh(&wl->lock);
582 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
583 struct ieee80211_vif *vif,
584 struct ieee80211_bss_conf *info, u32 changed)
586 struct brcms_info *wl = hw->priv;
587 struct bcma_device *core = wl->wlc->hw->d11core;
589 if (changed & BSS_CHANGED_ASSOC) {
590 /* association status changed (associated/disassociated)
591 * also implies a change in the AID.
593 brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
594 __func__, info->assoc ? "" : "dis");
595 spin_lock_bh(&wl->lock);
596 brcms_c_associate_upd(wl->wlc, info->assoc);
597 spin_unlock_bh(&wl->lock);
599 if (changed & BSS_CHANGED_ERP_SLOT) {
602 /* slot timing changed */
603 if (info->use_short_slot)
607 spin_lock_bh(&wl->lock);
608 brcms_c_set_shortslot_override(wl->wlc, val);
609 spin_unlock_bh(&wl->lock);
612 if (changed & BSS_CHANGED_HT) {
613 /* 802.11n parameters changed */
614 u16 mode = info->ht_operation_mode;
616 spin_lock_bh(&wl->lock);
617 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
618 mode & IEEE80211_HT_OP_MODE_PROTECTION);
619 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
620 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
621 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
622 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
623 spin_unlock_bh(&wl->lock);
625 if (changed & BSS_CHANGED_BASIC_RATES) {
626 struct ieee80211_supported_band *bi;
629 struct brcm_rateset rs;
632 /* retrieve the current rates */
633 spin_lock_bh(&wl->lock);
634 brcms_c_get_current_rateset(wl->wlc, &rs);
635 spin_unlock_bh(&wl->lock);
637 br_mask = info->basic_rates;
638 bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
639 for (i = 0; i < bi->n_bitrates; i++) {
640 /* convert to internal rate value */
641 rate = (bi->bitrates[i].bitrate << 1) / 10;
643 /* set/clear basic rate flag */
644 brcms_set_basic_rate(&rs, rate, br_mask & 1);
648 /* update the rate set */
649 spin_lock_bh(&wl->lock);
650 error = brcms_c_set_rateset(wl->wlc, &rs);
651 spin_unlock_bh(&wl->lock);
653 brcms_err(core, "changing basic rates failed: %d\n",
656 if (changed & BSS_CHANGED_BEACON_INT) {
657 /* Beacon interval changed */
658 spin_lock_bh(&wl->lock);
659 brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
660 spin_unlock_bh(&wl->lock);
662 if (changed & BSS_CHANGED_BSSID) {
663 /* BSSID changed, for whatever reason (IBSS and managed mode) */
664 spin_lock_bh(&wl->lock);
665 brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
666 spin_unlock_bh(&wl->lock);
668 if (changed & BSS_CHANGED_SSID) {
669 /* BSSID changed, for whatever reason (IBSS and managed mode) */
670 spin_lock_bh(&wl->lock);
671 brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len);
672 spin_unlock_bh(&wl->lock);
674 if (changed & BSS_CHANGED_BEACON) {
675 /* Beacon data changed, retrieve new beacon (beaconing modes) */
676 struct sk_buff *beacon;
679 spin_lock_bh(&wl->lock);
680 beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL);
681 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
683 spin_unlock_bh(&wl->lock);
686 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
687 struct sk_buff *probe_resp;
689 spin_lock_bh(&wl->lock);
690 probe_resp = ieee80211_proberesp_get(hw, vif);
691 brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
692 spin_unlock_bh(&wl->lock);
695 if (changed & BSS_CHANGED_BEACON_ENABLED) {
696 /* Beaconing should be enabled/disabled (beaconing modes) */
697 brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
698 info->enable_beacon ? "true" : "false");
699 if (info->enable_beacon &&
700 hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) {
701 brcms_c_enable_probe_resp(wl->wlc, true);
703 brcms_c_enable_probe_resp(wl->wlc, false);
707 if (changed & BSS_CHANGED_CQM) {
708 /* Connection quality monitor config changed */
709 brcms_err(core, "%s: cqm change: threshold %d, hys %d "
710 " (implement)\n", __func__, info->cqm_rssi_thold,
711 info->cqm_rssi_hyst);
714 if (changed & BSS_CHANGED_IBSS) {
715 /* IBSS join status changed */
716 brcms_err(core, "%s: IBSS joined: %s (implement)\n",
717 __func__, info->ibss_joined ? "true" : "false");
720 if (changed & BSS_CHANGED_ARP_FILTER) {
721 /* Hardware ARP filter address list or state changed */
722 brcms_err(core, "%s: arp filtering: %d addresses"
723 " (implement)\n", __func__, info->arp_addr_cnt);
726 if (changed & BSS_CHANGED_QOS) {
728 * QoS for this association was enabled/disabled.
729 * Note that it is only ever disabled for station mode.
731 brcms_err(core, "%s: qos enabled: %s (implement)\n",
732 __func__, info->qos ? "true" : "false");
738 brcms_ops_configure_filter(struct ieee80211_hw *hw,
739 unsigned int changed_flags,
740 unsigned int *total_flags, u64 multicast)
742 struct brcms_info *wl = hw->priv;
743 struct bcma_device *core = wl->wlc->hw->d11core;
745 changed_flags &= MAC_FILTERS;
746 *total_flags &= MAC_FILTERS;
748 if (changed_flags & FIF_ALLMULTI)
749 brcms_dbg_info(core, "FIF_ALLMULTI\n");
750 if (changed_flags & FIF_FCSFAIL)
751 brcms_dbg_info(core, "FIF_FCSFAIL\n");
752 if (changed_flags & FIF_CONTROL)
753 brcms_dbg_info(core, "FIF_CONTROL\n");
754 if (changed_flags & FIF_OTHER_BSS)
755 brcms_dbg_info(core, "FIF_OTHER_BSS\n");
756 if (changed_flags & FIF_PSPOLL)
757 brcms_dbg_info(core, "FIF_PSPOLL\n");
758 if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
759 brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n");
761 spin_lock_bh(&wl->lock);
762 brcms_c_mac_promisc(wl->wlc, *total_flags);
763 spin_unlock_bh(&wl->lock);
767 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw,
768 struct ieee80211_vif *vif,
771 struct brcms_info *wl = hw->priv;
772 spin_lock_bh(&wl->lock);
773 brcms_c_scan_start(wl->wlc);
774 spin_unlock_bh(&wl->lock);
778 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw,
779 struct ieee80211_vif *vif)
781 struct brcms_info *wl = hw->priv;
782 spin_lock_bh(&wl->lock);
783 brcms_c_scan_stop(wl->wlc);
784 spin_unlock_bh(&wl->lock);
789 brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
790 const struct ieee80211_tx_queue_params *params)
792 struct brcms_info *wl = hw->priv;
794 spin_lock_bh(&wl->lock);
795 brcms_c_wme_setparams(wl->wlc, queue, params, true);
796 spin_unlock_bh(&wl->lock);
802 brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
803 struct ieee80211_sta *sta)
805 struct brcms_info *wl = hw->priv;
806 struct scb *scb = &wl->wlc->pri_scb;
808 brcms_c_init_scb(scb);
810 wl->pub->global_ampdu = &(scb->scb_ampdu);
811 wl->pub->global_ampdu->scb = scb;
812 wl->pub->global_ampdu->max_pdu = 16;
815 * minstrel_ht initiates addBA on our behalf by calling
816 * ieee80211_start_tx_ba_session()
822 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
823 struct ieee80211_vif *vif,
824 struct ieee80211_ampdu_params *params)
826 struct brcms_info *wl = hw->priv;
827 struct scb *scb = &wl->wlc->pri_scb;
829 struct ieee80211_sta *sta = params->sta;
830 enum ieee80211_ampdu_mlme_action action = params->action;
831 u16 tid = params->tid;
832 u8 buf_size = params->buf_size;
834 if (WARN_ON(scb->magic != SCB_MAGIC))
837 case IEEE80211_AMPDU_RX_START:
839 case IEEE80211_AMPDU_RX_STOP:
841 case IEEE80211_AMPDU_TX_START:
842 spin_lock_bh(&wl->lock);
843 status = brcms_c_aggregatable(wl->wlc, tid);
844 spin_unlock_bh(&wl->lock);
846 brcms_dbg_ht(wl->wlc->hw->d11core,
847 "START: tid %d is not agg\'able\n", tid);
850 return IEEE80211_AMPDU_TX_START_IMMEDIATE;
852 case IEEE80211_AMPDU_TX_STOP_CONT:
853 case IEEE80211_AMPDU_TX_STOP_FLUSH:
854 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
855 spin_lock_bh(&wl->lock);
856 brcms_c_ampdu_flush(wl->wlc, sta, tid);
857 spin_unlock_bh(&wl->lock);
858 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
860 case IEEE80211_AMPDU_TX_OPERATIONAL:
862 * BA window size from ADDBA response ('buf_size') defines how
863 * many outstanding MPDUs are allowed for the BA stream by
864 * recipient and traffic class. 'ampdu_factor' gives maximum
867 spin_lock_bh(&wl->lock);
868 brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
869 (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
870 sta->deflink.ht_cap.ampdu_factor)) - 1);
871 spin_unlock_bh(&wl->lock);
872 /* Power save wakeup */
875 brcms_err(wl->wlc->hw->d11core,
876 "%s: Invalid command, ignoring\n", __func__);
882 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
884 struct brcms_info *wl = hw->priv;
887 spin_lock_bh(&wl->lock);
888 blocked = brcms_c_check_radio_disabled(wl->wlc);
889 spin_unlock_bh(&wl->lock);
891 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
894 static bool brcms_tx_flush_completed(struct brcms_info *wl)
898 spin_lock_bh(&wl->lock);
899 result = brcms_c_tx_flush_completed(wl->wlc);
900 spin_unlock_bh(&wl->lock);
904 static void brcms_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
905 u32 queues, bool drop)
907 struct brcms_info *wl = hw->priv;
910 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
912 ret = wait_event_timeout(wl->tx_flush_wq,
913 brcms_tx_flush_completed(wl),
914 msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
916 brcms_dbg_mac80211(wl->wlc->hw->d11core,
917 "ret=%d\n", jiffies_to_msecs(ret));
920 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
922 struct brcms_info *wl = hw->priv;
925 spin_lock_bh(&wl->lock);
926 tsf = brcms_c_tsf_get(wl->wlc);
927 spin_unlock_bh(&wl->lock);
932 static void brcms_ops_set_tsf(struct ieee80211_hw *hw,
933 struct ieee80211_vif *vif, u64 tsf)
935 struct brcms_info *wl = hw->priv;
937 spin_lock_bh(&wl->lock);
938 brcms_c_tsf_set(wl->wlc, tsf);
939 spin_unlock_bh(&wl->lock);
942 static int brcms_ops_beacon_set_tim(struct ieee80211_hw *hw,
943 struct ieee80211_sta *sta, bool set)
945 struct brcms_info *wl = hw->priv;
946 struct sk_buff *beacon = NULL;
949 spin_lock_bh(&wl->lock);
951 beacon = ieee80211_beacon_get_tim(hw, wl->wlc->vif,
954 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
955 wl->wlc->vif->bss_conf.dtim_period);
956 spin_unlock_bh(&wl->lock);
961 static const struct ieee80211_ops brcms_ops = {
963 .start = brcms_ops_start,
964 .stop = brcms_ops_stop,
965 .add_interface = brcms_ops_add_interface,
966 .remove_interface = brcms_ops_remove_interface,
967 .config = brcms_ops_config,
968 .bss_info_changed = brcms_ops_bss_info_changed,
969 .configure_filter = brcms_ops_configure_filter,
970 .sw_scan_start = brcms_ops_sw_scan_start,
971 .sw_scan_complete = brcms_ops_sw_scan_complete,
972 .conf_tx = brcms_ops_conf_tx,
973 .sta_add = brcms_ops_sta_add,
974 .ampdu_action = brcms_ops_ampdu_action,
975 .rfkill_poll = brcms_ops_rfkill_poll,
976 .flush = brcms_ops_flush,
977 .get_tsf = brcms_ops_get_tsf,
978 .set_tsf = brcms_ops_set_tsf,
979 .set_tim = brcms_ops_beacon_set_tim,
982 void brcms_dpc(struct tasklet_struct *t)
984 struct brcms_info *wl;
986 wl = from_tasklet(wl, t, tasklet);
988 spin_lock_bh(&wl->lock);
990 /* call the common second level interrupt handler */
995 spin_lock_irqsave(&wl->isr_lock, flags);
996 brcms_c_intrsupd(wl->wlc);
997 spin_unlock_irqrestore(&wl->isr_lock, flags);
1000 wl->resched = brcms_c_dpc(wl->wlc, true);
1003 /* brcms_c_dpc() may bring the driver down */
1007 /* re-schedule dpc */
1009 tasklet_schedule(&wl->tasklet);
1011 /* re-enable interrupts */
1015 spin_unlock_bh(&wl->lock);
1016 wake_up(&wl->tx_flush_wq);
1019 static irqreturn_t brcms_isr(int irq, void *dev_id)
1021 struct brcms_info *wl;
1022 irqreturn_t ret = IRQ_NONE;
1024 wl = (struct brcms_info *) dev_id;
1026 spin_lock(&wl->isr_lock);
1028 /* call common first level interrupt handler */
1029 if (brcms_c_isr(wl->wlc)) {
1030 /* schedule second level handler */
1031 tasklet_schedule(&wl->tasklet);
1035 spin_unlock(&wl->isr_lock);
1041 * is called in brcms_pci_probe() context, therefore no locking required.
1043 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1045 struct brcms_info *wl = hw->priv;
1046 struct brcms_c_info *wlc = wl->wlc;
1047 struct ieee80211_supported_band *band;
1051 hw->wiphy->bands[NL80211_BAND_2GHZ] = NULL;
1052 hw->wiphy->bands[NL80211_BAND_5GHZ] = NULL;
1054 phy_type = brcms_c_get_phy_type(wl->wlc, 0);
1055 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1056 band = &wlc->bandstate[BAND_2G_INDEX]->band;
1057 *band = brcms_band_2GHz_nphy_template;
1058 if (phy_type == PHY_TYPE_LCN) {
1060 band->ht_cap.mcs.rx_mask[1] = 0;
1061 band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
1063 hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
1068 /* Assume all bands use the same phy. True for 11n devices. */
1069 if (wl->pub->_nbands > 1) {
1071 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1072 band = &wlc->bandstate[BAND_5G_INDEX]->band;
1073 *band = brcms_band_5GHz_nphy_template;
1074 hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
1083 * is called in brcms_pci_probe() context, therefore no locking required.
1085 static int ieee_hw_init(struct ieee80211_hw *hw)
1087 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
1088 ieee80211_hw_set(hw, SIGNAL_DBM);
1089 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
1091 hw->extra_tx_headroom = brcms_c_get_header_len();
1092 hw->queues = N_TX_QUEUES;
1093 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1095 /* channel change time is dependent on chip and band */
1096 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1097 BIT(NL80211_IFTYPE_AP) |
1098 BIT(NL80211_IFTYPE_ADHOC);
1101 * deactivate sending probe responses by ucude, because this will
1102 * cause problems when WPS is used.
1104 * hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1107 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1109 hw->rate_control_algorithm = "minstrel_ht";
1111 hw->sta_data_size = 0;
1112 return ieee_hw_rate_init(hw);
1116 * attach to the WL device.
1118 * Attach to the WL device identified by vendor and device parameters.
1119 * regs is a host accessible memory address pointing to WL device registers.
1121 * is called in brcms_bcma_probe() context, therefore no locking required.
1123 static struct brcms_info *brcms_attach(struct bcma_device *pdev)
1125 struct brcms_info *wl = NULL;
1127 struct ieee80211_hw *hw;
1130 unit = n_adapters_found;
1136 /* allocate private info */
1137 hw = bcma_get_drvdata(pdev);
1140 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
1142 wl->wiphy = hw->wiphy;
1144 atomic_set(&wl->callbacks, 0);
1146 init_waitqueue_head(&wl->tx_flush_wq);
1148 /* setup the bottom half handler */
1149 tasklet_setup(&wl->tasklet, brcms_dpc);
1151 spin_lock_init(&wl->lock);
1152 spin_lock_init(&wl->isr_lock);
1154 /* common load-time initialization */
1155 wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
1157 wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
1158 KBUILD_MODNAME, err);
1161 wl->pub = brcms_c_pub(wl->wlc);
1163 wl->pub->ieee_hw = hw;
1165 /* register our interrupt handler */
1166 if (request_irq(pdev->irq, brcms_isr,
1167 IRQF_SHARED, KBUILD_MODNAME, wl)) {
1168 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
1171 wl->irq = pdev->irq;
1173 /* register module */
1174 brcms_c_module_register(wl->pub, "linux", wl, NULL);
1176 if (ieee_hw_init(hw)) {
1177 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
1182 brcms_c_regd_init(wl->wlc);
1184 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
1185 if (WARN_ON(!is_valid_ether_addr(perm)))
1187 SET_IEEE80211_PERM_ADDR(hw, perm);
1189 err = ieee80211_register_hw(hw);
1191 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
1192 "%d\n", __func__, err);
1194 if (wl->pub->srom_ccode[0] &&
1195 regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
1196 wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
1198 brcms_debugfs_attach(wl->pub);
1199 brcms_debugfs_create_files(wl->pub);
1211 * determines if a device is a WL device, and if so, attaches it.
1213 * This function determines if a device pointed to by pdev is a WL device,
1214 * and if so, performs a brcms_attach() on it.
1216 * Perimeter lock is initialized in the course of this function.
1218 static int brcms_bcma_probe(struct bcma_device *pdev)
1220 struct brcms_info *wl;
1221 struct ieee80211_hw *hw;
1224 dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
1225 pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
1228 if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
1229 (pdev->id.id != BCMA_CORE_80211))
1232 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1234 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1238 SET_IEEE80211_DEV(hw, &pdev->dev);
1240 bcma_set_drvdata(pdev, hw);
1242 memset(hw->priv, 0, sizeof(*wl));
1244 wl = brcms_attach(pdev);
1246 pr_err("%s: brcms_attach failed!\n", __func__);
1248 goto err_free_ieee80211;
1250 brcms_led_register(wl);
1255 ieee80211_free_hw(hw);
1259 static int brcms_suspend(struct bcma_device *pdev)
1261 struct brcms_info *wl;
1262 struct ieee80211_hw *hw;
1264 hw = bcma_get_drvdata(pdev);
1267 pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
1272 /* only need to flag hw is down for proper resume */
1273 spin_lock_bh(&wl->lock);
1274 wl->pub->hw_up = false;
1275 spin_unlock_bh(&wl->lock);
1277 brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
1282 static int brcms_resume(struct bcma_device *pdev)
1287 static struct bcma_driver brcms_bcma_driver = {
1288 .name = KBUILD_MODNAME,
1289 .probe = brcms_bcma_probe,
1290 .suspend = brcms_suspend,
1291 .resume = brcms_resume,
1292 .remove = brcms_remove,
1293 .id_table = brcms_coreid_table,
1297 * This is the main entry point for the brcmsmac driver.
1299 * This function is scheduled upon module initialization and
1300 * does the driver registration, which result in brcms_bcma_probe()
1301 * call resulting in the driver bringup.
1303 static void brcms_driver_init(struct work_struct *work)
1307 error = bcma_driver_register(&brcms_bcma_driver);
1309 pr_err("%s: register returned %d\n", __func__, error);
1312 static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
1314 static int __init brcms_module_init(void)
1316 brcms_debugfs_init();
1317 if (!schedule_work(&brcms_driver_work))
1324 * This function unloads the brcmsmac driver from the system.
1326 * This function unconditionally unloads the brcmsmac driver module from the
1330 static void __exit brcms_module_exit(void)
1332 cancel_work_sync(&brcms_driver_work);
1333 bcma_driver_unregister(&brcms_bcma_driver);
1334 brcms_debugfs_exit();
1337 module_init(brcms_module_init);
1338 module_exit(brcms_module_exit);
1341 * precondition: perimeter lock has been acquired
1343 void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1344 bool state, int prio)
1346 brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
1350 * precondition: perimeter lock has been acquired
1352 void brcms_init(struct brcms_info *wl)
1354 brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
1357 brcms_c_init(wl->wlc, wl->mute_tx);
1361 * precondition: perimeter lock has been acquired
1363 uint brcms_reset(struct brcms_info *wl)
1365 brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
1366 brcms_c_reset(wl->wlc);
1368 /* dpc will not be rescheduled */
1369 wl->resched = false;
1371 /* inform publicly that interface is down */
1372 wl->pub->up = false;
1377 void brcms_fatal_error(struct brcms_info *wl)
1379 brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
1380 wl->wlc->pub->unit);
1382 ieee80211_restart_hw(wl->pub->ieee_hw);
1386 * These are interrupt on/off entry points. Disable interrupts
1387 * during interrupt state transition.
1389 void brcms_intrson(struct brcms_info *wl)
1391 unsigned long flags;
1393 spin_lock_irqsave(&wl->isr_lock, flags);
1394 brcms_c_intrson(wl->wlc);
1395 spin_unlock_irqrestore(&wl->isr_lock, flags);
1398 u32 brcms_intrsoff(struct brcms_info *wl)
1400 unsigned long flags;
1403 spin_lock_irqsave(&wl->isr_lock, flags);
1404 status = brcms_c_intrsoff(wl->wlc);
1405 spin_unlock_irqrestore(&wl->isr_lock, flags);
1409 void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1411 unsigned long flags;
1413 spin_lock_irqsave(&wl->isr_lock, flags);
1414 brcms_c_intrsrestore(wl->wlc, macintmask);
1415 spin_unlock_irqrestore(&wl->isr_lock, flags);
1419 * precondition: perimeter lock has been acquired
1421 int brcms_up(struct brcms_info *wl)
1428 error = brcms_c_up(wl->wlc);
1434 * precondition: perimeter lock has been acquired
1436 void brcms_down(struct brcms_info *wl)
1437 __must_hold(&wl->lock)
1439 uint callbacks, ret_val = 0;
1441 /* call common down function */
1442 ret_val = brcms_c_down(wl->wlc);
1443 callbacks = atomic_read(&wl->callbacks) - ret_val;
1445 /* wait for down callbacks to complete */
1446 spin_unlock_bh(&wl->lock);
1448 /* For HIGH_only driver, it's important to actually schedule other work,
1449 * not just spin wait since everything runs at schedule level
1451 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1453 spin_lock_bh(&wl->lock);
1457 * precondition: perimeter lock is not acquired
1459 static void _brcms_timer(struct work_struct *work)
1461 struct brcms_timer *t = container_of(work, struct brcms_timer,
1464 spin_lock_bh(&t->wl->lock);
1468 atomic_inc(&t->wl->callbacks);
1469 ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
1471 msecs_to_jiffies(t->ms));
1479 atomic_dec(&t->wl->callbacks);
1481 spin_unlock_bh(&t->wl->lock);
1485 * Adds a timer to the list. Caller supplies a timer function.
1486 * Is called from wlc.
1488 * precondition: perimeter lock has been acquired
1490 struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1491 void (*fn) (void *arg),
1492 void *arg, const char *name)
1494 struct brcms_timer *t;
1496 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1500 INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
1504 t->next = wl->timers;
1508 t->name = kstrdup(name, GFP_ATOMIC);
1515 * adds only the kernel timer since it's going to be more accurate
1516 * as well as it's easier to make it periodic
1518 * precondition: perimeter lock has been acquired
1520 void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
1522 struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
1526 brcms_dbg_info(t->wl->wlc->hw->d11core,
1527 "%s: Already set. Name: %s, per %d\n",
1528 __func__, t->name, periodic);
1531 t->periodic = (bool) periodic;
1534 atomic_inc(&t->wl->callbacks);
1537 ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
1541 * return true if timer successfully deleted, false if still pending
1543 * precondition: perimeter lock has been acquired
1545 bool brcms_del_timer(struct brcms_timer *t)
1549 if (!cancel_delayed_work(&t->dly_wrk))
1552 atomic_dec(&t->wl->callbacks);
1559 * precondition: perimeter lock has been acquired
1561 void brcms_free_timer(struct brcms_timer *t)
1563 struct brcms_info *wl = t->wl;
1564 struct brcms_timer *tmp;
1566 /* delete the timer in case it is active */
1569 if (wl->timers == t) {
1570 wl->timers = wl->timers->next;
1581 if (tmp->next == t) {
1582 tmp->next = t->next;
1595 * precondition: no locking required
1597 int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1601 struct firmware_hdr *hdr;
1602 for (i = 0; i < wl->fw.fw_cnt; i++) {
1603 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1604 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1606 u32 len = le32_to_cpu(hdr->len);
1607 if (le32_to_cpu(hdr->idx) == idx) {
1608 pdata = wl->fw.fw_bin[i]->data +
1609 le32_to_cpu(hdr->offset);
1610 *pbuf = kvmalloc(len, GFP_KERNEL);
1613 memcpy(*pbuf, pdata, len);
1618 brcms_err(wl->wlc->hw->d11core,
1619 "ERROR: ucode buf tag:%d can not be found!\n", idx);
1626 * Precondition: Since this function is called in brcms_bcma_probe() context,
1627 * no locking is required.
1629 int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
1633 struct firmware_hdr *hdr;
1634 for (i = 0; i < wl->fw.fw_cnt; i++) {
1635 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1636 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1638 if (le32_to_cpu(hdr->idx) == idx) {
1639 pdata = wl->fw.fw_bin[i]->data +
1640 le32_to_cpu(hdr->offset);
1641 if (le32_to_cpu(hdr->len) != 4) {
1642 brcms_err(wl->wlc->hw->d11core,
1643 "ERROR: fw hdr len\n");
1646 *n_bytes = le32_to_cpu(*((__le32 *) pdata));
1651 brcms_err(wl->wlc->hw->d11core,
1652 "ERROR: ucode tag:%d can not be found!\n", idx);
1657 * precondition: can both be called locked and unlocked
1659 void brcms_ucode_free_buf(void *p)
1665 * checks validity of all firmware images loaded from user space
1667 * Precondition: Since this function is called in brcms_bcma_probe() context,
1668 * no locking is required.
1670 int brcms_check_firmwares(struct brcms_info *wl)
1675 const struct firmware *fw;
1676 const struct firmware *fw_hdr;
1677 struct firmware_hdr *ucode_hdr;
1678 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1679 fw = wl->fw.fw_bin[i];
1680 fw_hdr = wl->fw.fw_hdr[i];
1681 if (fw == NULL && fw_hdr == NULL) {
1683 } else if (fw == NULL || fw_hdr == NULL) {
1684 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1687 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1688 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1689 "size %zu/%zu\n", __func__, fw_hdr->size,
1690 sizeof(struct firmware_hdr));
1692 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1693 wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n",
1694 __func__, fw->size);
1697 /* check if ucode section overruns firmware image */
1698 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1699 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1700 !rc; entry++, ucode_hdr++) {
1701 if (le32_to_cpu(ucode_hdr->offset) +
1702 le32_to_cpu(ucode_hdr->len) >
1704 wiphy_err(wl->wiphy,
1705 "%s: conflicting bin/hdr\n",
1712 if (rc == 0 && wl->fw.fw_cnt != i) {
1713 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1721 * precondition: perimeter lock has been acquired
1723 bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1724 __must_hold(&wl->lock)
1726 bool blocked = brcms_c_check_radio_disabled(wl->wlc);
1728 spin_unlock_bh(&wl->lock);
1729 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1731 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1732 spin_lock_bh(&wl->lock);