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_PROMISC_IN_BSS | \
49 FIF_BCN_PRBRESP_PROMISC | \
52 #define CHAN2GHZ(channel, freqency, chflags) { \
53 .band = IEEE80211_BAND_2GHZ, \
54 .center_freq = (freqency), \
55 .hw_value = (channel), \
57 .max_antenna_gain = 0, \
61 #define CHAN5GHZ(channel, chflags) { \
62 .band = IEEE80211_BAND_5GHZ, \
63 .center_freq = 5000 + 5*(channel), \
64 .hw_value = (channel), \
66 .max_antenna_gain = 0, \
70 #define RATE(rate100m, _flags) { \
71 .bitrate = (rate100m), \
73 .hw_value = (rate100m / 5), \
82 static const char * const brcms_firmwares[MAX_FW_IMAGES] = {
87 static int n_adapters_found;
89 MODULE_AUTHOR("Broadcom Corporation");
90 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
91 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
92 MODULE_LICENSE("Dual BSD/GPL");
93 /* This needs to be adjusted when brcms_firmwares changes */
94 MODULE_FIRMWARE("brcm/bcm43xx-0.fw");
95 MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw");
97 /* recognized BCMA Core IDs */
98 static struct bcma_device_id brcms_coreid_table[] = {
99 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS),
100 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS),
101 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS),
104 MODULE_DEVICE_TABLE(bcma, brcms_coreid_table);
106 #if defined(CONFIG_BRCMDBG)
108 * Module parameter for setting the debug message level. Available
109 * flags are specified by the BRCM_DL_* macros in
110 * drivers/net/wireless/brcm80211/include/defs.h.
112 module_param_named(debug, brcm_msg_level, uint, S_IRUGO | S_IWUSR);
115 static struct ieee80211_channel brcms_2ghz_chantable[] = {
116 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
117 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
118 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
119 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
120 CHAN2GHZ(5, 2432, 0),
121 CHAN2GHZ(6, 2437, 0),
122 CHAN2GHZ(7, 2442, 0),
123 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
124 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
125 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
126 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
128 IEEE80211_CHAN_NO_IR |
129 IEEE80211_CHAN_NO_HT40PLUS),
131 IEEE80211_CHAN_NO_IR |
132 IEEE80211_CHAN_NO_HT40PLUS),
134 IEEE80211_CHAN_NO_IR |
135 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
136 IEEE80211_CHAN_NO_OFDM)
139 static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
141 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
142 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
143 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
144 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
147 IEEE80211_CHAN_RADAR |
148 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
150 IEEE80211_CHAN_RADAR |
151 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
153 IEEE80211_CHAN_RADAR |
154 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
156 IEEE80211_CHAN_RADAR |
157 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
160 IEEE80211_CHAN_RADAR |
161 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
163 IEEE80211_CHAN_RADAR |
164 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
166 IEEE80211_CHAN_RADAR |
167 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
169 IEEE80211_CHAN_RADAR |
170 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
172 IEEE80211_CHAN_RADAR |
173 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
175 IEEE80211_CHAN_RADAR |
176 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
178 IEEE80211_CHAN_RADAR |
179 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
181 IEEE80211_CHAN_RADAR |
182 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
184 IEEE80211_CHAN_RADAR |
185 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
187 IEEE80211_CHAN_RADAR |
188 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
190 IEEE80211_CHAN_RADAR |
191 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS |
192 IEEE80211_CHAN_NO_HT40MINUS),
194 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
195 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
196 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
197 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
198 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
202 * The rate table is used for both 2.4G and 5G rates. The
203 * latter being a subset as it does not support CCK rates.
205 static struct ieee80211_rate legacy_ratetable[] = {
207 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
208 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
209 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
220 static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = {
221 .band = IEEE80211_BAND_2GHZ,
222 .channels = brcms_2ghz_chantable,
223 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
224 .bitrates = legacy_ratetable,
225 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
227 /* from include/linux/ieee80211.h */
228 .cap = IEEE80211_HT_CAP_GRN_FLD |
229 IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40,
230 .ht_supported = true,
231 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
232 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
234 /* placeholders for now */
235 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
236 .rx_highest = cpu_to_le16(500),
237 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
241 static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = {
242 .band = IEEE80211_BAND_5GHZ,
243 .channels = brcms_5ghz_nphy_chantable,
244 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
245 .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET,
246 .n_bitrates = ARRAY_SIZE(legacy_ratetable) -
247 BRCMS_LEGACY_5G_RATE_OFFSET,
249 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
250 IEEE80211_HT_CAP_SGI_40,
251 .ht_supported = true,
252 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
253 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
255 /* placeholders for now */
256 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
257 .rx_highest = cpu_to_le16(500),
258 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
262 /* flags the given rate in rateset as requested */
263 static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br)
267 for (i = 0; i < rs->count; i++) {
268 if (rate != (rs->rates[i] & 0x7f))
272 rs->rates[i] |= BRCMS_RATE_FLAG;
274 rs->rates[i] &= BRCMS_RATE_MASK;
280 * This function frees the WL per-device resources.
282 * This function frees resources owned by the WL device pointed to
283 * by the wl parameter.
285 * precondition: can both be called locked and unlocked
288 static void brcms_free(struct brcms_info *wl)
290 struct brcms_timer *t, *next;
292 /* free ucode data */
294 brcms_ucode_data_free(&wl->ucode);
296 free_irq(wl->irq, wl);
299 tasklet_kill(&wl->tasklet);
302 brcms_debugfs_detach(wl->pub);
303 brcms_c_module_unregister(wl->pub, "linux", wl);
306 /* free common resources */
308 brcms_c_detach(wl->wlc);
313 /* virtual interface deletion is deferred so we cannot spinwait */
315 /* wait for all pending callbacks to complete */
316 while (atomic_read(&wl->callbacks) > 0)
320 for (t = wl->timers; t; t = next) {
330 * called from both kernel as from this kernel module (error flow on attach)
331 * precondition: perimeter lock is not acquired.
333 static void brcms_remove(struct bcma_device *pdev)
335 struct ieee80211_hw *hw = bcma_get_drvdata(pdev);
336 struct brcms_info *wl = hw->priv;
339 brcms_led_unregister(wl);
340 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
341 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
342 ieee80211_unregister_hw(hw);
347 bcma_set_drvdata(pdev, NULL);
348 ieee80211_free_hw(hw);
352 * Precondition: Since this function is called in brcms_pci_probe() context,
353 * no locking is required.
355 static void brcms_release_fw(struct brcms_info *wl)
358 for (i = 0; i < MAX_FW_IMAGES; i++) {
359 release_firmware(wl->fw.fw_bin[i]);
360 release_firmware(wl->fw.fw_hdr[i]);
365 * Precondition: Since this function is called in brcms_pci_probe() context,
366 * no locking is required.
368 static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev)
371 struct device *device = &pdev->dev;
375 memset(&wl->fw, 0, sizeof(struct brcms_firmware));
376 for (i = 0; i < MAX_FW_IMAGES; i++) {
377 if (brcms_firmwares[i] == NULL)
379 sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
380 UCODE_LOADER_API_VER);
381 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
383 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
384 KBUILD_MODNAME, fw_name);
387 sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
388 UCODE_LOADER_API_VER);
389 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
391 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
392 KBUILD_MODNAME, fw_name);
395 wl->fw.hdr_num_entries[i] =
396 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
399 status = brcms_ucode_data_init(wl, &wl->ucode);
400 brcms_release_fw(wl);
404 static void brcms_ops_tx(struct ieee80211_hw *hw,
405 struct ieee80211_tx_control *control,
408 struct brcms_info *wl = hw->priv;
409 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
411 spin_lock_bh(&wl->lock);
413 brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n");
417 if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw))
418 tx_info->rate_driver_data[0] = control->sta;
420 spin_unlock_bh(&wl->lock);
423 static int brcms_ops_start(struct ieee80211_hw *hw)
425 struct brcms_info *wl = hw->priv;
429 if (!wl->ucode.bcm43xx_bomminor) {
430 err = brcms_request_fw(wl, wl->wlc->hw->d11core);
435 ieee80211_wake_queues(hw);
436 spin_lock_bh(&wl->lock);
437 blocked = brcms_rfkill_set_hw_state(wl);
438 spin_unlock_bh(&wl->lock);
440 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
442 spin_lock_bh(&wl->lock);
443 /* avoid acknowledging frames before a non-monitor device is added */
453 spin_unlock_bh(&wl->lock);
456 brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
459 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true);
463 static void brcms_ops_stop(struct ieee80211_hw *hw)
465 struct brcms_info *wl = hw->priv;
468 ieee80211_stop_queues(hw);
473 spin_lock_bh(&wl->lock);
474 status = brcms_c_chipmatch(wl->wlc->hw->d11core);
475 spin_unlock_bh(&wl->lock);
477 brcms_err(wl->wlc->hw->d11core,
478 "wl: brcms_ops_stop: chipmatch failed\n");
482 bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false);
484 /* put driver in down state */
485 spin_lock_bh(&wl->lock);
487 spin_unlock_bh(&wl->lock);
491 brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
493 struct brcms_info *wl = hw->priv;
495 /* Just STA, AP and ADHOC for now */
496 if (vif->type != NL80211_IFTYPE_STATION &&
497 vif->type != NL80211_IFTYPE_AP &&
498 vif->type != NL80211_IFTYPE_ADHOC) {
499 brcms_err(wl->wlc->hw->d11core,
500 "%s: Attempt to add type %d, only STA, AP and AdHoc for now\n",
501 __func__, vif->type);
505 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)
525 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
527 struct ieee80211_conf *conf = &hw->conf;
528 struct brcms_info *wl = hw->priv;
529 struct bcma_device *core = wl->wlc->hw->d11core;
533 spin_lock_bh(&wl->lock);
534 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
535 brcms_c_set_beacon_listen_interval(wl->wlc,
536 conf->listen_interval);
538 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
539 brcms_dbg_info(core, "%s: change monitor mode: %s\n",
540 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
542 if (changed & IEEE80211_CONF_CHANGE_PS)
543 brcms_err(core, "%s: change power-save mode: %s (implement)\n",
544 __func__, conf->flags & IEEE80211_CONF_PS ?
547 if (changed & IEEE80211_CONF_CHANGE_POWER) {
548 err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
550 brcms_err(core, "%s: Error setting power_level\n",
554 new_int = brcms_c_get_tx_power(wl->wlc);
555 if (new_int != conf->power_level)
557 "%s: Power level req != actual, %d %d\n",
558 __func__, conf->power_level,
561 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
562 if (conf->chandef.width == NL80211_CHAN_WIDTH_20 ||
563 conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
564 err = brcms_c_set_channel(wl->wlc,
565 conf->chandef.chan->hw_value);
569 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
570 err = brcms_c_set_rate_limit(wl->wlc,
571 conf->short_frame_max_tx_count,
572 conf->long_frame_max_tx_count);
575 spin_unlock_bh(&wl->lock);
580 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
581 struct ieee80211_vif *vif,
582 struct ieee80211_bss_conf *info, u32 changed)
584 struct brcms_info *wl = hw->priv;
585 struct bcma_device *core = wl->wlc->hw->d11core;
587 if (changed & BSS_CHANGED_ASSOC) {
588 /* association status changed (associated/disassociated)
589 * also implies a change in the AID.
591 brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
592 __func__, info->assoc ? "" : "dis");
593 spin_lock_bh(&wl->lock);
594 brcms_c_associate_upd(wl->wlc, info->assoc);
595 spin_unlock_bh(&wl->lock);
597 if (changed & BSS_CHANGED_ERP_SLOT) {
600 /* slot timing changed */
601 if (info->use_short_slot)
605 spin_lock_bh(&wl->lock);
606 brcms_c_set_shortslot_override(wl->wlc, val);
607 spin_unlock_bh(&wl->lock);
610 if (changed & BSS_CHANGED_HT) {
611 /* 802.11n parameters changed */
612 u16 mode = info->ht_operation_mode;
614 spin_lock_bh(&wl->lock);
615 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
616 mode & IEEE80211_HT_OP_MODE_PROTECTION);
617 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
618 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
619 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
620 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
621 spin_unlock_bh(&wl->lock);
623 if (changed & BSS_CHANGED_BASIC_RATES) {
624 struct ieee80211_supported_band *bi;
627 struct brcm_rateset rs;
630 /* retrieve the current rates */
631 spin_lock_bh(&wl->lock);
632 brcms_c_get_current_rateset(wl->wlc, &rs);
633 spin_unlock_bh(&wl->lock);
635 br_mask = info->basic_rates;
636 bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
637 for (i = 0; i < bi->n_bitrates; i++) {
638 /* convert to internal rate value */
639 rate = (bi->bitrates[i].bitrate << 1) / 10;
641 /* set/clear basic rate flag */
642 brcms_set_basic_rate(&rs, rate, br_mask & 1);
646 /* update the rate set */
647 spin_lock_bh(&wl->lock);
648 error = brcms_c_set_rateset(wl->wlc, &rs);
649 spin_unlock_bh(&wl->lock);
651 brcms_err(core, "changing basic rates failed: %d\n",
654 if (changed & BSS_CHANGED_BEACON_INT) {
655 /* Beacon interval changed */
656 spin_lock_bh(&wl->lock);
657 brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
658 spin_unlock_bh(&wl->lock);
660 if (changed & BSS_CHANGED_BSSID) {
661 /* BSSID changed, for whatever reason (IBSS and managed mode) */
662 spin_lock_bh(&wl->lock);
663 brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
664 spin_unlock_bh(&wl->lock);
666 if (changed & BSS_CHANGED_SSID) {
667 /* BSSID changed, for whatever reason (IBSS and managed mode) */
668 spin_lock_bh(&wl->lock);
669 brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len);
670 spin_unlock_bh(&wl->lock);
672 if (changed & BSS_CHANGED_BEACON) {
673 /* Beacon data changed, retrieve new beacon (beaconing modes) */
674 struct sk_buff *beacon;
677 spin_lock_bh(&wl->lock);
678 beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL);
679 brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
681 spin_unlock_bh(&wl->lock);
684 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
685 struct sk_buff *probe_resp;
687 spin_lock_bh(&wl->lock);
688 probe_resp = ieee80211_proberesp_get(hw, vif);
689 brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
690 spin_unlock_bh(&wl->lock);
693 if (changed & BSS_CHANGED_BEACON_ENABLED) {
694 /* Beaconing should be enabled/disabled (beaconing modes) */
695 brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
696 info->enable_beacon ? "true" : "false");
697 if (info->enable_beacon &&
698 hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) {
699 brcms_c_enable_probe_resp(wl->wlc, true);
701 brcms_c_enable_probe_resp(wl->wlc, false);
705 if (changed & BSS_CHANGED_CQM) {
706 /* Connection quality monitor config changed */
707 brcms_err(core, "%s: cqm change: threshold %d, hys %d "
708 " (implement)\n", __func__, info->cqm_rssi_thold,
709 info->cqm_rssi_hyst);
712 if (changed & BSS_CHANGED_IBSS) {
713 /* IBSS join status changed */
714 brcms_err(core, "%s: IBSS joined: %s (implement)\n",
715 __func__, info->ibss_joined ? "true" : "false");
718 if (changed & BSS_CHANGED_ARP_FILTER) {
719 /* Hardware ARP filter address list or state changed */
720 brcms_err(core, "%s: arp filtering: %d addresses"
721 " (implement)\n", __func__, info->arp_addr_cnt);
724 if (changed & BSS_CHANGED_QOS) {
726 * QoS for this association was enabled/disabled.
727 * Note that it is only ever disabled for station mode.
729 brcms_err(core, "%s: qos enabled: %s (implement)\n",
730 __func__, info->qos ? "true" : "false");
736 brcms_ops_configure_filter(struct ieee80211_hw *hw,
737 unsigned int changed_flags,
738 unsigned int *total_flags, u64 multicast)
740 struct brcms_info *wl = hw->priv;
741 struct bcma_device *core = wl->wlc->hw->d11core;
743 changed_flags &= MAC_FILTERS;
744 *total_flags &= MAC_FILTERS;
746 if (changed_flags & FIF_PROMISC_IN_BSS)
747 brcms_dbg_info(core, "FIF_PROMISC_IN_BSS\n");
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)
769 struct brcms_info *wl = hw->priv;
770 spin_lock_bh(&wl->lock);
771 brcms_c_scan_start(wl->wlc);
772 spin_unlock_bh(&wl->lock);
776 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw)
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 enum ieee80211_ampdu_mlme_action action,
822 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
825 struct brcms_info *wl = hw->priv;
826 struct scb *scb = &wl->wlc->pri_scb;
829 if (WARN_ON(scb->magic != SCB_MAGIC))
832 case IEEE80211_AMPDU_RX_START:
834 case IEEE80211_AMPDU_RX_STOP:
836 case IEEE80211_AMPDU_TX_START:
837 spin_lock_bh(&wl->lock);
838 status = brcms_c_aggregatable(wl->wlc, tid);
839 spin_unlock_bh(&wl->lock);
841 brcms_err(wl->wlc->hw->d11core,
842 "START: tid %d is not agg\'able\n", tid);
845 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
848 case IEEE80211_AMPDU_TX_STOP_CONT:
849 case IEEE80211_AMPDU_TX_STOP_FLUSH:
850 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
851 spin_lock_bh(&wl->lock);
852 brcms_c_ampdu_flush(wl->wlc, sta, tid);
853 spin_unlock_bh(&wl->lock);
854 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
856 case IEEE80211_AMPDU_TX_OPERATIONAL:
858 * BA window size from ADDBA response ('buf_size') defines how
859 * many outstanding MPDUs are allowed for the BA stream by
860 * recipient and traffic class. 'ampdu_factor' gives maximum
863 spin_lock_bh(&wl->lock);
864 brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
865 (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
866 sta->ht_cap.ampdu_factor)) - 1);
867 spin_unlock_bh(&wl->lock);
868 /* Power save wakeup */
871 brcms_err(wl->wlc->hw->d11core,
872 "%s: Invalid command, ignoring\n", __func__);
878 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
880 struct brcms_info *wl = hw->priv;
883 spin_lock_bh(&wl->lock);
884 blocked = brcms_c_check_radio_disabled(wl->wlc);
885 spin_unlock_bh(&wl->lock);
887 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
890 static bool brcms_tx_flush_completed(struct brcms_info *wl)
894 spin_lock_bh(&wl->lock);
895 result = brcms_c_tx_flush_completed(wl->wlc);
896 spin_unlock_bh(&wl->lock);
900 static void brcms_ops_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
902 struct brcms_info *wl = hw->priv;
905 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
907 ret = wait_event_timeout(wl->tx_flush_wq,
908 brcms_tx_flush_completed(wl),
909 msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
911 brcms_dbg_mac80211(wl->wlc->hw->d11core,
912 "ret=%d\n", jiffies_to_msecs(ret));
915 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
917 struct brcms_info *wl = hw->priv;
920 spin_lock_bh(&wl->lock);
921 tsf = brcms_c_tsf_get(wl->wlc);
922 spin_unlock_bh(&wl->lock);
927 static void brcms_ops_set_tsf(struct ieee80211_hw *hw,
928 struct ieee80211_vif *vif, u64 tsf)
930 struct brcms_info *wl = hw->priv;
932 spin_lock_bh(&wl->lock);
933 brcms_c_tsf_set(wl->wlc, tsf);
934 spin_unlock_bh(&wl->lock);
937 static const struct ieee80211_ops brcms_ops = {
939 .start = brcms_ops_start,
940 .stop = brcms_ops_stop,
941 .add_interface = brcms_ops_add_interface,
942 .remove_interface = brcms_ops_remove_interface,
943 .config = brcms_ops_config,
944 .bss_info_changed = brcms_ops_bss_info_changed,
945 .configure_filter = brcms_ops_configure_filter,
946 .sw_scan_start = brcms_ops_sw_scan_start,
947 .sw_scan_complete = brcms_ops_sw_scan_complete,
948 .conf_tx = brcms_ops_conf_tx,
949 .sta_add = brcms_ops_sta_add,
950 .ampdu_action = brcms_ops_ampdu_action,
951 .rfkill_poll = brcms_ops_rfkill_poll,
952 .flush = brcms_ops_flush,
953 .get_tsf = brcms_ops_get_tsf,
954 .set_tsf = brcms_ops_set_tsf,
957 void brcms_dpc(unsigned long data)
959 struct brcms_info *wl;
961 wl = (struct brcms_info *) data;
963 spin_lock_bh(&wl->lock);
965 /* call the common second level interrupt handler */
970 spin_lock_irqsave(&wl->isr_lock, flags);
971 brcms_c_intrsupd(wl->wlc);
972 spin_unlock_irqrestore(&wl->isr_lock, flags);
975 wl->resched = brcms_c_dpc(wl->wlc, true);
978 /* brcms_c_dpc() may bring the driver down */
982 /* re-schedule dpc */
984 tasklet_schedule(&wl->tasklet);
986 /* re-enable interrupts */
990 spin_unlock_bh(&wl->lock);
991 wake_up(&wl->tx_flush_wq);
994 static irqreturn_t brcms_isr(int irq, void *dev_id)
996 struct brcms_info *wl;
997 irqreturn_t ret = IRQ_NONE;
999 wl = (struct brcms_info *) dev_id;
1001 spin_lock(&wl->isr_lock);
1003 /* call common first level interrupt handler */
1004 if (brcms_c_isr(wl->wlc)) {
1005 /* schedule second level handler */
1006 tasklet_schedule(&wl->tasklet);
1010 spin_unlock(&wl->isr_lock);
1016 * is called in brcms_pci_probe() context, therefore no locking required.
1018 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1020 struct brcms_info *wl = hw->priv;
1021 struct brcms_c_info *wlc = wl->wlc;
1022 struct ieee80211_supported_band *band;
1026 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
1027 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1029 phy_type = brcms_c_get_phy_type(wl->wlc, 0);
1030 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1031 band = &wlc->bandstate[BAND_2G_INDEX]->band;
1032 *band = brcms_band_2GHz_nphy_template;
1033 if (phy_type == PHY_TYPE_LCN) {
1035 band->ht_cap.mcs.rx_mask[1] = 0;
1036 band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
1038 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
1043 /* Assume all bands use the same phy. True for 11n devices. */
1044 if (wl->pub->_nbands > 1) {
1046 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
1047 band = &wlc->bandstate[BAND_5G_INDEX]->band;
1048 *band = brcms_band_5GHz_nphy_template;
1049 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
1058 * is called in brcms_pci_probe() context, therefore no locking required.
1060 static int ieee_hw_init(struct ieee80211_hw *hw)
1062 hw->flags = IEEE80211_HW_SIGNAL_DBM
1063 /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
1064 | IEEE80211_HW_REPORTS_TX_ACK_STATUS
1065 | IEEE80211_HW_AMPDU_AGGREGATION;
1067 hw->extra_tx_headroom = brcms_c_get_header_len();
1068 hw->queues = N_TX_QUEUES;
1069 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1071 /* channel change time is dependent on chip and band */
1072 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1073 BIT(NL80211_IFTYPE_AP) |
1074 BIT(NL80211_IFTYPE_ADHOC);
1077 * deactivate sending probe responses by ucude, because this will
1078 * cause problems when WPS is used.
1080 * hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1083 hw->rate_control_algorithm = "minstrel_ht";
1085 hw->sta_data_size = 0;
1086 return ieee_hw_rate_init(hw);
1090 * attach to the WL device.
1092 * Attach to the WL device identified by vendor and device parameters.
1093 * regs is a host accessible memory address pointing to WL device registers.
1095 * is called in brcms_bcma_probe() context, therefore no locking required.
1097 static struct brcms_info *brcms_attach(struct bcma_device *pdev)
1099 struct brcms_info *wl = NULL;
1101 struct ieee80211_hw *hw;
1104 unit = n_adapters_found;
1110 /* allocate private info */
1111 hw = bcma_get_drvdata(pdev);
1114 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
1116 wl->wiphy = hw->wiphy;
1118 atomic_set(&wl->callbacks, 0);
1120 init_waitqueue_head(&wl->tx_flush_wq);
1122 /* setup the bottom half handler */
1123 tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
1125 spin_lock_init(&wl->lock);
1126 spin_lock_init(&wl->isr_lock);
1128 /* common load-time initialization */
1129 wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
1131 wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
1132 KBUILD_MODNAME, err);
1135 wl->pub = brcms_c_pub(wl->wlc);
1137 wl->pub->ieee_hw = hw;
1139 /* register our interrupt handler */
1140 if (request_irq(pdev->irq, brcms_isr,
1141 IRQF_SHARED, KBUILD_MODNAME, wl)) {
1142 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
1145 wl->irq = pdev->irq;
1147 /* register module */
1148 brcms_c_module_register(wl->pub, "linux", wl, NULL);
1150 if (ieee_hw_init(hw)) {
1151 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
1156 brcms_c_regd_init(wl->wlc);
1158 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
1159 if (WARN_ON(!is_valid_ether_addr(perm)))
1161 SET_IEEE80211_PERM_ADDR(hw, perm);
1163 err = ieee80211_register_hw(hw);
1165 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
1166 "%d\n", __func__, err);
1168 if (wl->pub->srom_ccode[0] &&
1169 regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
1170 wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
1172 brcms_debugfs_attach(wl->pub);
1173 brcms_debugfs_create_files(wl->pub);
1185 * determines if a device is a WL device, and if so, attaches it.
1187 * This function determines if a device pointed to by pdev is a WL device,
1188 * and if so, performs a brcms_attach() on it.
1190 * Perimeter lock is initialized in the course of this function.
1192 static int brcms_bcma_probe(struct bcma_device *pdev)
1194 struct brcms_info *wl;
1195 struct ieee80211_hw *hw;
1197 dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
1198 pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
1201 if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
1202 (pdev->id.id != BCMA_CORE_80211))
1205 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1207 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1211 SET_IEEE80211_DEV(hw, &pdev->dev);
1213 bcma_set_drvdata(pdev, hw);
1215 memset(hw->priv, 0, sizeof(*wl));
1217 wl = brcms_attach(pdev);
1219 pr_err("%s: brcms_attach failed!\n", __func__);
1222 brcms_led_register(wl);
1227 static int brcms_suspend(struct bcma_device *pdev)
1229 struct brcms_info *wl;
1230 struct ieee80211_hw *hw;
1232 hw = bcma_get_drvdata(pdev);
1235 pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
1240 /* only need to flag hw is down for proper resume */
1241 spin_lock_bh(&wl->lock);
1242 wl->pub->hw_up = false;
1243 spin_unlock_bh(&wl->lock);
1245 brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
1250 static int brcms_resume(struct bcma_device *pdev)
1255 static struct bcma_driver brcms_bcma_driver = {
1256 .name = KBUILD_MODNAME,
1257 .probe = brcms_bcma_probe,
1258 .suspend = brcms_suspend,
1259 .resume = brcms_resume,
1260 .remove = brcms_remove,
1261 .id_table = brcms_coreid_table,
1265 * This is the main entry point for the brcmsmac driver.
1267 * This function is scheduled upon module initialization and
1268 * does the driver registration, which result in brcms_bcma_probe()
1269 * call resulting in the driver bringup.
1271 static void brcms_driver_init(struct work_struct *work)
1275 error = bcma_driver_register(&brcms_bcma_driver);
1277 pr_err("%s: register returned %d\n", __func__, error);
1280 static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
1282 static int __init brcms_module_init(void)
1284 brcms_debugfs_init();
1285 if (!schedule_work(&brcms_driver_work))
1292 * This function unloads the brcmsmac driver from the system.
1294 * This function unconditionally unloads the brcmsmac driver module from the
1298 static void __exit brcms_module_exit(void)
1300 cancel_work_sync(&brcms_driver_work);
1301 bcma_driver_unregister(&brcms_bcma_driver);
1302 brcms_debugfs_exit();
1305 module_init(brcms_module_init);
1306 module_exit(brcms_module_exit);
1309 * precondition: perimeter lock has been acquired
1311 void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1312 bool state, int prio)
1314 brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
1318 * precondition: perimeter lock has been acquired
1320 void brcms_init(struct brcms_info *wl)
1322 brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
1325 brcms_c_init(wl->wlc, wl->mute_tx);
1329 * precondition: perimeter lock has been acquired
1331 uint brcms_reset(struct brcms_info *wl)
1333 brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
1334 brcms_c_reset(wl->wlc);
1336 /* dpc will not be rescheduled */
1337 wl->resched = false;
1339 /* inform publicly that interface is down */
1340 wl->pub->up = false;
1345 void brcms_fatal_error(struct brcms_info *wl)
1347 brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
1348 wl->wlc->pub->unit);
1350 ieee80211_restart_hw(wl->pub->ieee_hw);
1354 * These are interrupt on/off entry points. Disable interrupts
1355 * during interrupt state transition.
1357 void brcms_intrson(struct brcms_info *wl)
1359 unsigned long flags;
1361 spin_lock_irqsave(&wl->isr_lock, flags);
1362 brcms_c_intrson(wl->wlc);
1363 spin_unlock_irqrestore(&wl->isr_lock, flags);
1366 u32 brcms_intrsoff(struct brcms_info *wl)
1368 unsigned long flags;
1371 spin_lock_irqsave(&wl->isr_lock, flags);
1372 status = brcms_c_intrsoff(wl->wlc);
1373 spin_unlock_irqrestore(&wl->isr_lock, flags);
1377 void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1379 unsigned long flags;
1381 spin_lock_irqsave(&wl->isr_lock, flags);
1382 brcms_c_intrsrestore(wl->wlc, macintmask);
1383 spin_unlock_irqrestore(&wl->isr_lock, flags);
1387 * precondition: perimeter lock has been acquired
1389 int brcms_up(struct brcms_info *wl)
1396 error = brcms_c_up(wl->wlc);
1402 * precondition: perimeter lock has been acquired
1404 void brcms_down(struct brcms_info *wl)
1406 uint callbacks, ret_val = 0;
1408 /* call common down function */
1409 ret_val = brcms_c_down(wl->wlc);
1410 callbacks = atomic_read(&wl->callbacks) - ret_val;
1412 /* wait for down callbacks to complete */
1413 spin_unlock_bh(&wl->lock);
1415 /* For HIGH_only driver, it's important to actually schedule other work,
1416 * not just spin wait since everything runs at schedule level
1418 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1420 spin_lock_bh(&wl->lock);
1424 * precondition: perimeter lock is not acquired
1426 static void _brcms_timer(struct work_struct *work)
1428 struct brcms_timer *t = container_of(work, struct brcms_timer,
1431 spin_lock_bh(&t->wl->lock);
1435 atomic_inc(&t->wl->callbacks);
1436 ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
1438 msecs_to_jiffies(t->ms));
1446 atomic_dec(&t->wl->callbacks);
1448 spin_unlock_bh(&t->wl->lock);
1452 * Adds a timer to the list. Caller supplies a timer function.
1453 * Is called from wlc.
1455 * precondition: perimeter lock has been acquired
1457 struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1458 void (*fn) (void *arg),
1459 void *arg, const char *name)
1461 struct brcms_timer *t;
1463 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1467 INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
1471 t->next = wl->timers;
1475 t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1477 strcpy(t->name, name);
1484 * adds only the kernel timer since it's going to be more accurate
1485 * as well as it's easier to make it periodic
1487 * precondition: perimeter lock has been acquired
1489 void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
1491 struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
1495 brcms_dbg_info(t->wl->wlc->hw->d11core,
1496 "%s: Already set. Name: %s, per %d\n",
1497 __func__, t->name, periodic);
1500 t->periodic = (bool) periodic;
1503 atomic_inc(&t->wl->callbacks);
1506 ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
1510 * return true if timer successfully deleted, false if still pending
1512 * precondition: perimeter lock has been acquired
1514 bool brcms_del_timer(struct brcms_timer *t)
1518 if (!cancel_delayed_work(&t->dly_wrk))
1521 atomic_dec(&t->wl->callbacks);
1528 * precondition: perimeter lock has been acquired
1530 void brcms_free_timer(struct brcms_timer *t)
1532 struct brcms_info *wl = t->wl;
1533 struct brcms_timer *tmp;
1535 /* delete the timer in case it is active */
1538 if (wl->timers == t) {
1539 wl->timers = wl->timers->next;
1550 if (tmp->next == t) {
1551 tmp->next = t->next;
1564 * precondition: perimeter lock has been acquired
1566 int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1570 struct firmware_hdr *hdr;
1571 for (i = 0; i < wl->fw.fw_cnt; i++) {
1572 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1573 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1575 u32 len = le32_to_cpu(hdr->len);
1576 if (le32_to_cpu(hdr->idx) == idx) {
1577 pdata = wl->fw.fw_bin[i]->data +
1578 le32_to_cpu(hdr->offset);
1579 *pbuf = kmemdup(pdata, len, GFP_ATOMIC);
1587 brcms_err(wl->wlc->hw->d11core,
1588 "ERROR: ucode buf tag:%d can not be found!\n", idx);
1595 * Precondition: Since this function is called in brcms_bcma_probe() context,
1596 * no locking is required.
1598 int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
1602 struct firmware_hdr *hdr;
1603 for (i = 0; i < wl->fw.fw_cnt; i++) {
1604 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1605 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1607 if (le32_to_cpu(hdr->idx) == idx) {
1608 pdata = wl->fw.fw_bin[i]->data +
1609 le32_to_cpu(hdr->offset);
1610 if (le32_to_cpu(hdr->len) != 4) {
1611 brcms_err(wl->wlc->hw->d11core,
1612 "ERROR: fw hdr len\n");
1615 *n_bytes = le32_to_cpu(*((__le32 *) pdata));
1620 brcms_err(wl->wlc->hw->d11core,
1621 "ERROR: ucode tag:%d can not be found!\n", idx);
1626 * precondition: can both be called locked and unlocked
1628 void brcms_ucode_free_buf(void *p)
1634 * checks validity of all firmware images loaded from user space
1636 * Precondition: Since this function is called in brcms_bcma_probe() context,
1637 * no locking is required.
1639 int brcms_check_firmwares(struct brcms_info *wl)
1644 const struct firmware *fw;
1645 const struct firmware *fw_hdr;
1646 struct firmware_hdr *ucode_hdr;
1647 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1648 fw = wl->fw.fw_bin[i];
1649 fw_hdr = wl->fw.fw_hdr[i];
1650 if (fw == NULL && fw_hdr == NULL) {
1652 } else if (fw == NULL || fw_hdr == NULL) {
1653 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1656 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1657 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1658 "size %zu/%zu\n", __func__, fw_hdr->size,
1659 sizeof(struct firmware_hdr));
1661 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1662 wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n",
1663 __func__, fw->size);
1666 /* check if ucode section overruns firmware image */
1667 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1668 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1669 !rc; entry++, ucode_hdr++) {
1670 if (le32_to_cpu(ucode_hdr->offset) +
1671 le32_to_cpu(ucode_hdr->len) >
1673 wiphy_err(wl->wiphy,
1674 "%s: conflicting bin/hdr\n",
1681 if (rc == 0 && wl->fw.fw_cnt != i) {
1682 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1690 * precondition: perimeter lock has been acquired
1692 bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1694 bool blocked = brcms_c_check_radio_disabled(wl->wlc);
1696 spin_unlock_bh(&wl->lock);
1697 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1699 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1700 spin_lock_bh(&wl->lock);