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);
507 brcms_c_mute(wl->wlc, false);
508 if (vif->type == NL80211_IFTYPE_STATION)
509 brcms_c_start_station(wl->wlc, vif->addr);
510 else if (vif->type == NL80211_IFTYPE_AP)
511 brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid,
512 vif->bss_conf.ssid, vif->bss_conf.ssid_len);
513 else if (vif->type == NL80211_IFTYPE_ADHOC)
514 brcms_c_start_adhoc(wl->wlc, vif->addr);
515 spin_unlock_bh(&wl->lock);
521 brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
523 struct brcms_info *wl = hw->priv;
525 spin_lock_bh(&wl->lock);
527 spin_unlock_bh(&wl->lock);
530 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
532 struct ieee80211_conf *conf = &hw->conf;
533 struct brcms_info *wl = hw->priv;
534 struct bcma_device *core = wl->wlc->hw->d11core;
538 spin_lock_bh(&wl->lock);
539 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
540 brcms_c_set_beacon_listen_interval(wl->wlc,
541 conf->listen_interval);
543 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
544 brcms_dbg_info(core, "%s: change monitor mode: %s\n",
545 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
547 if (changed & IEEE80211_CONF_CHANGE_PS)
548 brcms_err(core, "%s: change power-save mode: %s (implement)\n",
549 __func__, conf->flags & IEEE80211_CONF_PS ?
552 if (changed & IEEE80211_CONF_CHANGE_POWER) {
553 err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
555 brcms_err(core, "%s: Error setting power_level\n",
559 new_int = brcms_c_get_tx_power(wl->wlc);
560 if (new_int != conf->power_level)
562 "%s: Power level req != actual, %d %d\n",
563 __func__, conf->power_level,
566 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
567 if (conf->chandef.width == NL80211_CHAN_WIDTH_20 ||
568 conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
569 err = brcms_c_set_channel(wl->wlc,
570 conf->chandef.chan->hw_value);
574 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
575 err = brcms_c_set_rate_limit(wl->wlc,
576 conf->short_frame_max_tx_count,
577 conf->long_frame_max_tx_count);
580 spin_unlock_bh(&wl->lock);
585 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
586 struct ieee80211_vif *vif,
587 struct ieee80211_bss_conf *info, u32 changed)
589 struct brcms_info *wl = hw->priv;
590 struct bcma_device *core = wl->wlc->hw->d11core;
592 if (changed & BSS_CHANGED_ASSOC) {
593 /* association status changed (associated/disassociated)
594 * also implies a change in the AID.
596 brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
597 __func__, info->assoc ? "" : "dis");
598 spin_lock_bh(&wl->lock);
599 brcms_c_associate_upd(wl->wlc, info->assoc);
600 spin_unlock_bh(&wl->lock);
602 if (changed & BSS_CHANGED_ERP_SLOT) {
605 /* slot timing changed */
606 if (info->use_short_slot)
610 spin_lock_bh(&wl->lock);
611 brcms_c_set_shortslot_override(wl->wlc, val);
612 spin_unlock_bh(&wl->lock);
615 if (changed & BSS_CHANGED_HT) {
616 /* 802.11n parameters changed */
617 u16 mode = info->ht_operation_mode;
619 spin_lock_bh(&wl->lock);
620 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
621 mode & IEEE80211_HT_OP_MODE_PROTECTION);
622 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
623 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
624 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
625 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
626 spin_unlock_bh(&wl->lock);
628 if (changed & BSS_CHANGED_BASIC_RATES) {
629 struct ieee80211_supported_band *bi;
632 struct brcm_rateset rs;
635 /* retrieve the current rates */
636 spin_lock_bh(&wl->lock);
637 brcms_c_get_current_rateset(wl->wlc, &rs);
638 spin_unlock_bh(&wl->lock);
640 br_mask = info->basic_rates;
641 bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
642 for (i = 0; i < bi->n_bitrates; i++) {
643 /* convert to internal rate value */
644 rate = (bi->bitrates[i].bitrate << 1) / 10;
646 /* set/clear basic rate flag */
647 brcms_set_basic_rate(&rs, rate, br_mask & 1);
651 /* update the rate set */
652 spin_lock_bh(&wl->lock);
653 error = brcms_c_set_rateset(wl->wlc, &rs);
654 spin_unlock_bh(&wl->lock);
656 brcms_err(core, "changing basic rates failed: %d\n",
659 if (changed & BSS_CHANGED_BEACON_INT) {
660 /* Beacon interval changed */
661 spin_lock_bh(&wl->lock);
662 brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
663 spin_unlock_bh(&wl->lock);
665 if (changed & BSS_CHANGED_BSSID) {
666 /* BSSID changed, for whatever reason (IBSS and managed mode) */
667 spin_lock_bh(&wl->lock);
668 brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
669 spin_unlock_bh(&wl->lock);
671 if (changed & BSS_CHANGED_SSID) {
672 /* BSSID changed, for whatever reason (IBSS and managed mode) */
673 spin_lock_bh(&wl->lock);
674 brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len);
675 spin_unlock_bh(&wl->lock);
677 if (changed & BSS_CHANGED_BEACON) {
678 /* Beacon data changed, retrieve new beacon (beaconing modes) */
679 struct sk_buff *beacon;
682 spin_lock_bh(&wl->lock);
683 beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL);
684 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
686 spin_unlock_bh(&wl->lock);
689 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
690 struct sk_buff *probe_resp;
692 spin_lock_bh(&wl->lock);
693 probe_resp = ieee80211_proberesp_get(hw, vif);
694 brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
695 spin_unlock_bh(&wl->lock);
698 if (changed & BSS_CHANGED_BEACON_ENABLED) {
699 /* Beaconing should be enabled/disabled (beaconing modes) */
700 brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
701 info->enable_beacon ? "true" : "false");
702 if (info->enable_beacon &&
703 hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) {
704 brcms_c_enable_probe_resp(wl->wlc, true);
706 brcms_c_enable_probe_resp(wl->wlc, false);
710 if (changed & BSS_CHANGED_CQM) {
711 /* Connection quality monitor config changed */
712 brcms_err(core, "%s: cqm change: threshold %d, hys %d "
713 " (implement)\n", __func__, info->cqm_rssi_thold,
714 info->cqm_rssi_hyst);
717 if (changed & BSS_CHANGED_IBSS) {
718 /* IBSS join status changed */
719 brcms_err(core, "%s: IBSS joined: %s (implement)\n",
720 __func__, info->ibss_joined ? "true" : "false");
723 if (changed & BSS_CHANGED_ARP_FILTER) {
724 /* Hardware ARP filter address list or state changed */
725 brcms_err(core, "%s: arp filtering: %d addresses"
726 " (implement)\n", __func__, info->arp_addr_cnt);
729 if (changed & BSS_CHANGED_QOS) {
731 * QoS for this association was enabled/disabled.
732 * Note that it is only ever disabled for station mode.
734 brcms_err(core, "%s: qos enabled: %s (implement)\n",
735 __func__, info->qos ? "true" : "false");
741 brcms_ops_configure_filter(struct ieee80211_hw *hw,
742 unsigned int changed_flags,
743 unsigned int *total_flags, u64 multicast)
745 struct brcms_info *wl = hw->priv;
746 struct bcma_device *core = wl->wlc->hw->d11core;
748 changed_flags &= MAC_FILTERS;
749 *total_flags &= MAC_FILTERS;
751 if (changed_flags & FIF_ALLMULTI)
752 brcms_dbg_info(core, "FIF_ALLMULTI\n");
753 if (changed_flags & FIF_FCSFAIL)
754 brcms_dbg_info(core, "FIF_FCSFAIL\n");
755 if (changed_flags & FIF_CONTROL)
756 brcms_dbg_info(core, "FIF_CONTROL\n");
757 if (changed_flags & FIF_OTHER_BSS)
758 brcms_dbg_info(core, "FIF_OTHER_BSS\n");
759 if (changed_flags & FIF_PSPOLL)
760 brcms_dbg_info(core, "FIF_PSPOLL\n");
761 if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
762 brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n");
764 spin_lock_bh(&wl->lock);
765 brcms_c_mac_promisc(wl->wlc, *total_flags);
766 spin_unlock_bh(&wl->lock);
770 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw,
771 struct ieee80211_vif *vif,
774 struct brcms_info *wl = hw->priv;
775 spin_lock_bh(&wl->lock);
776 brcms_c_scan_start(wl->wlc);
777 spin_unlock_bh(&wl->lock);
781 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw,
782 struct ieee80211_vif *vif)
784 struct brcms_info *wl = hw->priv;
785 spin_lock_bh(&wl->lock);
786 brcms_c_scan_stop(wl->wlc);
787 spin_unlock_bh(&wl->lock);
792 brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
793 const struct ieee80211_tx_queue_params *params)
795 struct brcms_info *wl = hw->priv;
797 spin_lock_bh(&wl->lock);
798 brcms_c_wme_setparams(wl->wlc, queue, params, true);
799 spin_unlock_bh(&wl->lock);
805 brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
806 struct ieee80211_sta *sta)
808 struct brcms_info *wl = hw->priv;
809 struct scb *scb = &wl->wlc->pri_scb;
811 brcms_c_init_scb(scb);
813 wl->pub->global_ampdu = &(scb->scb_ampdu);
814 wl->pub->global_ampdu->scb = scb;
815 wl->pub->global_ampdu->max_pdu = 16;
818 * minstrel_ht initiates addBA on our behalf by calling
819 * ieee80211_start_tx_ba_session()
825 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
826 struct ieee80211_vif *vif,
827 struct ieee80211_ampdu_params *params)
829 struct brcms_info *wl = hw->priv;
830 struct scb *scb = &wl->wlc->pri_scb;
832 struct ieee80211_sta *sta = params->sta;
833 enum ieee80211_ampdu_mlme_action action = params->action;
834 u16 tid = params->tid;
835 u8 buf_size = params->buf_size;
837 if (WARN_ON(scb->magic != SCB_MAGIC))
840 case IEEE80211_AMPDU_RX_START:
842 case IEEE80211_AMPDU_RX_STOP:
844 case IEEE80211_AMPDU_TX_START:
845 spin_lock_bh(&wl->lock);
846 status = brcms_c_aggregatable(wl->wlc, tid);
847 spin_unlock_bh(&wl->lock);
849 brcms_dbg_ht(wl->wlc->hw->d11core,
850 "START: tid %d is not agg\'able\n", tid);
853 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
856 case IEEE80211_AMPDU_TX_STOP_CONT:
857 case IEEE80211_AMPDU_TX_STOP_FLUSH:
858 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
859 spin_lock_bh(&wl->lock);
860 brcms_c_ampdu_flush(wl->wlc, sta, tid);
861 spin_unlock_bh(&wl->lock);
862 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
864 case IEEE80211_AMPDU_TX_OPERATIONAL:
866 * BA window size from ADDBA response ('buf_size') defines how
867 * many outstanding MPDUs are allowed for the BA stream by
868 * recipient and traffic class. 'ampdu_factor' gives maximum
871 spin_lock_bh(&wl->lock);
872 brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
873 (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
874 sta->ht_cap.ampdu_factor)) - 1);
875 spin_unlock_bh(&wl->lock);
876 /* Power save wakeup */
879 brcms_err(wl->wlc->hw->d11core,
880 "%s: Invalid command, ignoring\n", __func__);
886 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
888 struct brcms_info *wl = hw->priv;
891 spin_lock_bh(&wl->lock);
892 blocked = brcms_c_check_radio_disabled(wl->wlc);
893 spin_unlock_bh(&wl->lock);
895 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
898 static bool brcms_tx_flush_completed(struct brcms_info *wl)
902 spin_lock_bh(&wl->lock);
903 result = brcms_c_tx_flush_completed(wl->wlc);
904 spin_unlock_bh(&wl->lock);
908 static void brcms_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
909 u32 queues, bool drop)
911 struct brcms_info *wl = hw->priv;
914 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
916 ret = wait_event_timeout(wl->tx_flush_wq,
917 brcms_tx_flush_completed(wl),
918 msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
920 brcms_dbg_mac80211(wl->wlc->hw->d11core,
921 "ret=%d\n", jiffies_to_msecs(ret));
924 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
926 struct brcms_info *wl = hw->priv;
929 spin_lock_bh(&wl->lock);
930 tsf = brcms_c_tsf_get(wl->wlc);
931 spin_unlock_bh(&wl->lock);
936 static void brcms_ops_set_tsf(struct ieee80211_hw *hw,
937 struct ieee80211_vif *vif, u64 tsf)
939 struct brcms_info *wl = hw->priv;
941 spin_lock_bh(&wl->lock);
942 brcms_c_tsf_set(wl->wlc, tsf);
943 spin_unlock_bh(&wl->lock);
946 static int brcms_ops_beacon_set_tim(struct ieee80211_hw *hw,
947 struct ieee80211_sta *sta, bool set)
949 struct brcms_info *wl = hw->priv;
950 struct sk_buff *beacon = NULL;
953 spin_lock_bh(&wl->lock);
955 beacon = ieee80211_beacon_get_tim(hw, wl->wlc->vif,
958 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
959 wl->wlc->vif->bss_conf.dtim_period);
960 spin_unlock_bh(&wl->lock);
965 static const struct ieee80211_ops brcms_ops = {
967 .start = brcms_ops_start,
968 .stop = brcms_ops_stop,
969 .add_interface = brcms_ops_add_interface,
970 .remove_interface = brcms_ops_remove_interface,
971 .config = brcms_ops_config,
972 .bss_info_changed = brcms_ops_bss_info_changed,
973 .configure_filter = brcms_ops_configure_filter,
974 .sw_scan_start = brcms_ops_sw_scan_start,
975 .sw_scan_complete = brcms_ops_sw_scan_complete,
976 .conf_tx = brcms_ops_conf_tx,
977 .sta_add = brcms_ops_sta_add,
978 .ampdu_action = brcms_ops_ampdu_action,
979 .rfkill_poll = brcms_ops_rfkill_poll,
980 .flush = brcms_ops_flush,
981 .get_tsf = brcms_ops_get_tsf,
982 .set_tsf = brcms_ops_set_tsf,
983 .set_tim = brcms_ops_beacon_set_tim,
986 void brcms_dpc(unsigned long data)
988 struct brcms_info *wl;
990 wl = (struct brcms_info *) data;
992 spin_lock_bh(&wl->lock);
994 /* call the common second level interrupt handler */
999 spin_lock_irqsave(&wl->isr_lock, flags);
1000 brcms_c_intrsupd(wl->wlc);
1001 spin_unlock_irqrestore(&wl->isr_lock, flags);
1004 wl->resched = brcms_c_dpc(wl->wlc, true);
1007 /* brcms_c_dpc() may bring the driver down */
1011 /* re-schedule dpc */
1013 tasklet_schedule(&wl->tasklet);
1015 /* re-enable interrupts */
1019 spin_unlock_bh(&wl->lock);
1020 wake_up(&wl->tx_flush_wq);
1023 static irqreturn_t brcms_isr(int irq, void *dev_id)
1025 struct brcms_info *wl;
1026 irqreturn_t ret = IRQ_NONE;
1028 wl = (struct brcms_info *) dev_id;
1030 spin_lock(&wl->isr_lock);
1032 /* call common first level interrupt handler */
1033 if (brcms_c_isr(wl->wlc)) {
1034 /* schedule second level handler */
1035 tasklet_schedule(&wl->tasklet);
1039 spin_unlock(&wl->isr_lock);
1045 * is called in brcms_pci_probe() context, therefore no locking required.
1047 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1049 struct brcms_info *wl = hw->priv;
1050 struct brcms_c_info *wlc = wl->wlc;
1051 struct ieee80211_supported_band *band;
1055 hw->wiphy->bands[NL80211_BAND_2GHZ] = NULL;
1056 hw->wiphy->bands[NL80211_BAND_5GHZ] = NULL;
1058 phy_type = brcms_c_get_phy_type(wl->wlc, 0);
1059 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1060 band = &wlc->bandstate[BAND_2G_INDEX]->band;
1061 *band = brcms_band_2GHz_nphy_template;
1062 if (phy_type == PHY_TYPE_LCN) {
1064 band->ht_cap.mcs.rx_mask[1] = 0;
1065 band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
1067 hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
1072 /* Assume all bands use the same phy. True for 11n devices. */
1073 if (wl->pub->_nbands > 1) {
1075 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1076 band = &wlc->bandstate[BAND_5G_INDEX]->band;
1077 *band = brcms_band_5GHz_nphy_template;
1078 hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
1087 * is called in brcms_pci_probe() context, therefore no locking required.
1089 static int ieee_hw_init(struct ieee80211_hw *hw)
1091 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
1092 ieee80211_hw_set(hw, SIGNAL_DBM);
1093 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
1095 hw->extra_tx_headroom = brcms_c_get_header_len();
1096 hw->queues = N_TX_QUEUES;
1097 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1099 /* channel change time is dependent on chip and band */
1100 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1101 BIT(NL80211_IFTYPE_AP) |
1102 BIT(NL80211_IFTYPE_ADHOC);
1105 * deactivate sending probe responses by ucude, because this will
1106 * cause problems when WPS is used.
1108 * hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1111 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1113 hw->rate_control_algorithm = "minstrel_ht";
1115 hw->sta_data_size = 0;
1116 return ieee_hw_rate_init(hw);
1120 * attach to the WL device.
1122 * Attach to the WL device identified by vendor and device parameters.
1123 * regs is a host accessible memory address pointing to WL device registers.
1125 * is called in brcms_bcma_probe() context, therefore no locking required.
1127 static struct brcms_info *brcms_attach(struct bcma_device *pdev)
1129 struct brcms_info *wl = NULL;
1131 struct ieee80211_hw *hw;
1134 unit = n_adapters_found;
1140 /* allocate private info */
1141 hw = bcma_get_drvdata(pdev);
1144 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
1146 wl->wiphy = hw->wiphy;
1148 atomic_set(&wl->callbacks, 0);
1150 init_waitqueue_head(&wl->tx_flush_wq);
1152 /* setup the bottom half handler */
1153 tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
1155 spin_lock_init(&wl->lock);
1156 spin_lock_init(&wl->isr_lock);
1158 /* common load-time initialization */
1159 wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
1161 wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
1162 KBUILD_MODNAME, err);
1165 wl->pub = brcms_c_pub(wl->wlc);
1167 wl->pub->ieee_hw = hw;
1169 /* register our interrupt handler */
1170 if (request_irq(pdev->irq, brcms_isr,
1171 IRQF_SHARED, KBUILD_MODNAME, wl)) {
1172 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
1175 wl->irq = pdev->irq;
1177 /* register module */
1178 brcms_c_module_register(wl->pub, "linux", wl, NULL);
1180 if (ieee_hw_init(hw)) {
1181 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
1186 brcms_c_regd_init(wl->wlc);
1188 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
1189 if (WARN_ON(!is_valid_ether_addr(perm)))
1191 SET_IEEE80211_PERM_ADDR(hw, perm);
1193 err = ieee80211_register_hw(hw);
1195 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
1196 "%d\n", __func__, err);
1198 if (wl->pub->srom_ccode[0] &&
1199 regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
1200 wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
1202 brcms_debugfs_attach(wl->pub);
1203 brcms_debugfs_create_files(wl->pub);
1215 * determines if a device is a WL device, and if so, attaches it.
1217 * This function determines if a device pointed to by pdev is a WL device,
1218 * and if so, performs a brcms_attach() on it.
1220 * Perimeter lock is initialized in the course of this function.
1222 static int brcms_bcma_probe(struct bcma_device *pdev)
1224 struct brcms_info *wl;
1225 struct ieee80211_hw *hw;
1227 dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
1228 pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
1231 if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
1232 (pdev->id.id != BCMA_CORE_80211))
1235 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1237 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1241 SET_IEEE80211_DEV(hw, &pdev->dev);
1243 bcma_set_drvdata(pdev, hw);
1245 memset(hw->priv, 0, sizeof(*wl));
1247 wl = brcms_attach(pdev);
1249 pr_err("%s: brcms_attach failed!\n", __func__);
1252 brcms_led_register(wl);
1257 static int brcms_suspend(struct bcma_device *pdev)
1259 struct brcms_info *wl;
1260 struct ieee80211_hw *hw;
1262 hw = bcma_get_drvdata(pdev);
1265 pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
1270 /* only need to flag hw is down for proper resume */
1271 spin_lock_bh(&wl->lock);
1272 wl->pub->hw_up = false;
1273 spin_unlock_bh(&wl->lock);
1275 brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
1280 static int brcms_resume(struct bcma_device *pdev)
1285 static struct bcma_driver brcms_bcma_driver = {
1286 .name = KBUILD_MODNAME,
1287 .probe = brcms_bcma_probe,
1288 .suspend = brcms_suspend,
1289 .resume = brcms_resume,
1290 .remove = brcms_remove,
1291 .id_table = brcms_coreid_table,
1295 * This is the main entry point for the brcmsmac driver.
1297 * This function is scheduled upon module initialization and
1298 * does the driver registration, which result in brcms_bcma_probe()
1299 * call resulting in the driver bringup.
1301 static void brcms_driver_init(struct work_struct *work)
1305 error = bcma_driver_register(&brcms_bcma_driver);
1307 pr_err("%s: register returned %d\n", __func__, error);
1310 static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
1312 static int __init brcms_module_init(void)
1314 brcms_debugfs_init();
1315 if (!schedule_work(&brcms_driver_work))
1322 * This function unloads the brcmsmac driver from the system.
1324 * This function unconditionally unloads the brcmsmac driver module from the
1328 static void __exit brcms_module_exit(void)
1330 cancel_work_sync(&brcms_driver_work);
1331 bcma_driver_unregister(&brcms_bcma_driver);
1332 brcms_debugfs_exit();
1335 module_init(brcms_module_init);
1336 module_exit(brcms_module_exit);
1339 * precondition: perimeter lock has been acquired
1341 void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1342 bool state, int prio)
1344 brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
1348 * precondition: perimeter lock has been acquired
1350 void brcms_init(struct brcms_info *wl)
1352 brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
1355 brcms_c_init(wl->wlc, wl->mute_tx);
1359 * precondition: perimeter lock has been acquired
1361 uint brcms_reset(struct brcms_info *wl)
1363 brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
1364 brcms_c_reset(wl->wlc);
1366 /* dpc will not be rescheduled */
1367 wl->resched = false;
1369 /* inform publicly that interface is down */
1370 wl->pub->up = false;
1375 void brcms_fatal_error(struct brcms_info *wl)
1377 brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
1378 wl->wlc->pub->unit);
1380 ieee80211_restart_hw(wl->pub->ieee_hw);
1384 * These are interrupt on/off entry points. Disable interrupts
1385 * during interrupt state transition.
1387 void brcms_intrson(struct brcms_info *wl)
1389 unsigned long flags;
1391 spin_lock_irqsave(&wl->isr_lock, flags);
1392 brcms_c_intrson(wl->wlc);
1393 spin_unlock_irqrestore(&wl->isr_lock, flags);
1396 u32 brcms_intrsoff(struct brcms_info *wl)
1398 unsigned long flags;
1401 spin_lock_irqsave(&wl->isr_lock, flags);
1402 status = brcms_c_intrsoff(wl->wlc);
1403 spin_unlock_irqrestore(&wl->isr_lock, flags);
1407 void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1409 unsigned long flags;
1411 spin_lock_irqsave(&wl->isr_lock, flags);
1412 brcms_c_intrsrestore(wl->wlc, macintmask);
1413 spin_unlock_irqrestore(&wl->isr_lock, flags);
1417 * precondition: perimeter lock has been acquired
1419 int brcms_up(struct brcms_info *wl)
1426 error = brcms_c_up(wl->wlc);
1432 * precondition: perimeter lock has been acquired
1434 void brcms_down(struct brcms_info *wl)
1436 uint callbacks, ret_val = 0;
1438 /* call common down function */
1439 ret_val = brcms_c_down(wl->wlc);
1440 callbacks = atomic_read(&wl->callbacks) - ret_val;
1442 /* wait for down callbacks to complete */
1443 spin_unlock_bh(&wl->lock);
1445 /* For HIGH_only driver, it's important to actually schedule other work,
1446 * not just spin wait since everything runs at schedule level
1448 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1450 spin_lock_bh(&wl->lock);
1454 * precondition: perimeter lock is not acquired
1456 static void _brcms_timer(struct work_struct *work)
1458 struct brcms_timer *t = container_of(work, struct brcms_timer,
1461 spin_lock_bh(&t->wl->lock);
1465 atomic_inc(&t->wl->callbacks);
1466 ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
1468 msecs_to_jiffies(t->ms));
1476 atomic_dec(&t->wl->callbacks);
1478 spin_unlock_bh(&t->wl->lock);
1482 * Adds a timer to the list. Caller supplies a timer function.
1483 * Is called from wlc.
1485 * precondition: perimeter lock has been acquired
1487 struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1488 void (*fn) (void *arg),
1489 void *arg, const char *name)
1491 struct brcms_timer *t;
1493 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1497 INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
1501 t->next = wl->timers;
1505 t->name = kstrdup(name, GFP_ATOMIC);
1512 * adds only the kernel timer since it's going to be more accurate
1513 * as well as it's easier to make it periodic
1515 * precondition: perimeter lock has been acquired
1517 void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
1519 struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
1523 brcms_dbg_info(t->wl->wlc->hw->d11core,
1524 "%s: Already set. Name: %s, per %d\n",
1525 __func__, t->name, periodic);
1528 t->periodic = (bool) periodic;
1531 atomic_inc(&t->wl->callbacks);
1534 ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
1538 * return true if timer successfully deleted, false if still pending
1540 * precondition: perimeter lock has been acquired
1542 bool brcms_del_timer(struct brcms_timer *t)
1546 if (!cancel_delayed_work(&t->dly_wrk))
1549 atomic_dec(&t->wl->callbacks);
1556 * precondition: perimeter lock has been acquired
1558 void brcms_free_timer(struct brcms_timer *t)
1560 struct brcms_info *wl = t->wl;
1561 struct brcms_timer *tmp;
1563 /* delete the timer in case it is active */
1566 if (wl->timers == t) {
1567 wl->timers = wl->timers->next;
1578 if (tmp->next == t) {
1579 tmp->next = t->next;
1592 * precondition: no locking required
1594 int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1598 struct firmware_hdr *hdr;
1599 for (i = 0; i < wl->fw.fw_cnt; i++) {
1600 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1601 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1603 u32 len = le32_to_cpu(hdr->len);
1604 if (le32_to_cpu(hdr->idx) == idx) {
1605 pdata = wl->fw.fw_bin[i]->data +
1606 le32_to_cpu(hdr->offset);
1607 *pbuf = kvmalloc(len, GFP_KERNEL);
1610 memcpy(*pbuf, pdata, len);
1615 brcms_err(wl->wlc->hw->d11core,
1616 "ERROR: ucode buf tag:%d can not be found!\n", idx);
1623 * Precondition: Since this function is called in brcms_bcma_probe() context,
1624 * no locking is required.
1626 int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
1630 struct firmware_hdr *hdr;
1631 for (i = 0; i < wl->fw.fw_cnt; i++) {
1632 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1633 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1635 if (le32_to_cpu(hdr->idx) == idx) {
1636 pdata = wl->fw.fw_bin[i]->data +
1637 le32_to_cpu(hdr->offset);
1638 if (le32_to_cpu(hdr->len) != 4) {
1639 brcms_err(wl->wlc->hw->d11core,
1640 "ERROR: fw hdr len\n");
1643 *n_bytes = le32_to_cpu(*((__le32 *) pdata));
1648 brcms_err(wl->wlc->hw->d11core,
1649 "ERROR: ucode tag:%d can not be found!\n", idx);
1654 * precondition: can both be called locked and unlocked
1656 void brcms_ucode_free_buf(void *p)
1662 * checks validity of all firmware images loaded from user space
1664 * Precondition: Since this function is called in brcms_bcma_probe() context,
1665 * no locking is required.
1667 int brcms_check_firmwares(struct brcms_info *wl)
1672 const struct firmware *fw;
1673 const struct firmware *fw_hdr;
1674 struct firmware_hdr *ucode_hdr;
1675 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1676 fw = wl->fw.fw_bin[i];
1677 fw_hdr = wl->fw.fw_hdr[i];
1678 if (fw == NULL && fw_hdr == NULL) {
1680 } else if (fw == NULL || fw_hdr == NULL) {
1681 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1684 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1685 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1686 "size %zu/%zu\n", __func__, fw_hdr->size,
1687 sizeof(struct firmware_hdr));
1689 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1690 wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n",
1691 __func__, fw->size);
1694 /* check if ucode section overruns firmware image */
1695 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1696 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1697 !rc; entry++, ucode_hdr++) {
1698 if (le32_to_cpu(ucode_hdr->offset) +
1699 le32_to_cpu(ucode_hdr->len) >
1701 wiphy_err(wl->wiphy,
1702 "%s: conflicting bin/hdr\n",
1709 if (rc == 0 && wl->fw.fw_cnt != i) {
1710 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1718 * precondition: perimeter lock has been acquired
1720 bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1722 bool blocked = brcms_c_check_radio_disabled(wl->wlc);
1724 spin_unlock_bh(&wl->lock);
1725 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1727 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1728 spin_lock_bh(&wl->lock);