2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #define __UNDEF_NO_VERSION__
19 #include <linux/kernel.h>
20 #include <linux/etherdevice.h>
21 #include <linux/types.h>
22 #include <linux/pci_ids.h>
23 #include <linux/module.h>
24 #include <linux/pci.h>
25 #include <linux/sched.h>
26 #include <linux/firmware.h>
27 #include <net/mac80211.h>
29 #include <brcmu_wifi.h>
30 #include <brcmu_utils.h>
34 #include "phy/phy_int.h"
41 #include "ucode_loader.h"
42 #include "mac80211_if.h"
44 #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
46 #define LOCK(wl) spin_lock_bh(&(wl)->lock)
47 #define UNLOCK(wl) spin_unlock_bh(&(wl)->lock)
49 /* locking from inside brcms_isr */
50 #define ISR_LOCK(wl, flags)\
52 spin_lock(&(wl)->isr_lock);\
56 #define ISR_UNLOCK(wl, flags)\
58 spin_unlock(&(wl)->isr_lock);\
62 /* locking under LOCK() to synchronize with brcms_isr */
63 #define INT_LOCK(wl, flags) spin_lock_irqsave(&(wl)->isr_lock, flags)
64 #define INT_UNLOCK(wl, flags) spin_unlock_irqrestore(&(wl)->isr_lock, flags)
66 static void brcms_timer(unsigned long data);
67 static void _brcms_timer(struct brcms_timer *t);
70 static int ieee_hw_init(struct ieee80211_hw *hw);
71 static int ieee_hw_rate_init(struct ieee80211_hw *hw);
73 static int wl_linux_watchdog(void *ctx);
75 /* Flags we support */
76 #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
82 FIF_BCN_PRBRESP_PROMISC)
84 static int n_adapters_found;
86 static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev);
87 static void brcms_release_fw(struct brcms_info *wl);
89 /* local prototypes */
90 static void brcms_dpc(unsigned long data);
91 static irqreturn_t brcms_isr(int irq, void *dev_id);
93 static int __devinit brcms_pci_probe(struct pci_dev *pdev,
94 const struct pci_device_id *ent);
95 static void brcms_remove(struct pci_dev *pdev);
96 static void brcms_free(struct brcms_info *wl);
97 static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br);
99 MODULE_AUTHOR("Broadcom Corporation");
100 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
101 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
102 MODULE_LICENSE("Dual BSD/GPL");
104 /* recognized PCI IDs */
105 static DEFINE_PCI_DEVICE_TABLE(brcms_pci_id_table) = {
106 {PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43225 2G */
107 {PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43224 DUAL */
108 {PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 4313 DUAL */
110 {PCI_VENDOR_ID_BROADCOM, 0x0576, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
114 MODULE_DEVICE_TABLE(pci, brcms_pci_id_table);
117 static int msglevel = 0xdeadbeef;
118 module_param(msglevel, int, 0);
119 static int phymsglevel = 0xdeadbeef;
120 module_param(phymsglevel, int, 0);
123 #define HW_TO_WL(hw) (hw->priv)
124 #define WL_TO_HW(wl) (wl->pub->ieee_hw)
126 /* MAC80211 callback functions */
127 static int brcms_ops_start(struct ieee80211_hw *hw);
128 static void brcms_ops_stop(struct ieee80211_hw *hw);
129 static int brcms_ops_add_interface(struct ieee80211_hw *hw,
130 struct ieee80211_vif *vif);
131 static void brcms_ops_remove_interface(struct ieee80211_hw *hw,
132 struct ieee80211_vif *vif);
133 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed);
134 static void brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
135 struct ieee80211_vif *vif,
136 struct ieee80211_bss_conf *info,
138 static void brcms_ops_configure_filter(struct ieee80211_hw *hw,
139 unsigned int changed_flags,
140 unsigned int *total_flags, u64 multicast);
141 static int brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
143 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw);
144 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw);
145 static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
146 static int brcms_ops_get_stats(struct ieee80211_hw *hw,
147 struct ieee80211_low_level_stats *stats);
148 static void brcms_ops_sta_notify(struct ieee80211_hw *hw,
149 struct ieee80211_vif *vif,
150 enum sta_notify_cmd cmd,
151 struct ieee80211_sta *sta);
152 static int brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
153 const struct ieee80211_tx_queue_params *params);
154 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw);
155 static int brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
156 struct ieee80211_sta *sta);
157 static int brcms_ops_sta_remove(struct ieee80211_hw *hw,
158 struct ieee80211_vif *vif,
159 struct ieee80211_sta *sta);
160 static int brcms_ops_ampdu_action(struct ieee80211_hw *hw,
161 struct ieee80211_vif *vif,
162 enum ieee80211_ampdu_mlme_action action,
163 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
165 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw);
166 static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop);
168 static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
170 struct brcms_info *wl = hw->priv;
174 wiphy_err(wl->wiphy, "ops->tx called while down\n");
178 wlc_sendpkt_mac80211(wl->wlc, skb, hw);
183 static int brcms_ops_start(struct ieee80211_hw *hw)
185 struct brcms_info *wl = hw->priv;
188 struct ieee80211_channel *curchan = hw->conf.channel;
191 ieee80211_wake_queues(hw);
193 blocked = brcms_rfkill_set_hw_state(wl);
196 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
201 static void brcms_ops_stop(struct ieee80211_hw *hw)
203 ieee80211_stop_queues(hw);
207 brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
209 struct brcms_info *wl;
212 /* Just STA for now */
213 if (vif->type != NL80211_IFTYPE_AP &&
214 vif->type != NL80211_IFTYPE_MESH_POINT &&
215 vif->type != NL80211_IFTYPE_STATION &&
216 vif->type != NL80211_IFTYPE_WDS &&
217 vif->type != NL80211_IFTYPE_ADHOC) {
218 wiphy_err(hw->wiphy, "%s: Attempt to add type %d, only"
219 " STA for now\n", __func__, vif->type);
229 wiphy_err(hw->wiphy, "%s: brcms_up() returned %d\n", __func__,
236 brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
238 struct brcms_info *wl;
242 /* put driver in down state */
249 * precondition: perimeter lock has been acquired
252 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
253 enum nl80211_channel_type type)
255 struct brcms_info *wl = HW_TO_WL(hw);
259 case NL80211_CHAN_HT20:
260 case NL80211_CHAN_NO_HT:
261 err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
263 case NL80211_CHAN_HT40MINUS:
264 case NL80211_CHAN_HT40PLUS:
266 "%s: Need to implement 40 Mhz Channels!\n", __func__);
276 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
278 struct ieee80211_conf *conf = &hw->conf;
279 struct brcms_info *wl = HW_TO_WL(hw);
282 struct wiphy *wiphy = hw->wiphy;
285 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
286 if (wlc_set_par(wl->wlc, IOV_BCN_LI_BCN, conf->listen_interval)
288 wiphy_err(wiphy, "%s: Error setting listen_interval\n",
293 wlc_get_par(wl->wlc, IOV_BCN_LI_BCN, &new_int);
295 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
296 wiphy_err(wiphy, "%s: change monitor mode: %s (implement)\n",
297 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
299 if (changed & IEEE80211_CONF_CHANGE_PS)
300 wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n",
301 __func__, conf->flags & IEEE80211_CONF_PS ?
304 if (changed & IEEE80211_CONF_CHANGE_POWER) {
305 if (wlc_set_par(wl->wlc, IOV_QTXPOWER, conf->power_level * 4)
307 wiphy_err(wiphy, "%s: Error setting power_level\n",
312 wlc_get_par(wl->wlc, IOV_QTXPOWER, &new_int);
313 if (new_int != (conf->power_level * 4))
314 wiphy_err(wiphy, "%s: Power level req != actual, %d %d"
315 "\n", __func__, conf->power_level * 4,
318 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
319 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
321 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
323 (wl->wlc, WLC_SET_SRL,
324 conf->short_frame_max_tx_count) < 0) {
325 wiphy_err(wiphy, "%s: Error setting srl\n", __func__);
329 if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
331 wiphy_err(wiphy, "%s: Error setting lrl\n", __func__);
343 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
344 struct ieee80211_vif *vif,
345 struct ieee80211_bss_conf *info, u32 changed)
347 struct brcms_info *wl = HW_TO_WL(hw);
348 struct wiphy *wiphy = hw->wiphy;
351 if (changed & BSS_CHANGED_ASSOC) {
352 /* association status changed (associated/disassociated)
353 * also implies a change in the AID.
355 wiphy_err(wiphy, "%s: %s: %sassociated\n", KBUILD_MODNAME,
356 __func__, info->assoc ? "" : "dis");
358 wlc_associate_upd(wl->wlc, info->assoc);
361 if (changed & BSS_CHANGED_ERP_SLOT) {
362 /* slot timing changed */
363 if (info->use_short_slot)
368 wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
372 if (changed & BSS_CHANGED_HT) {
373 /* 802.11n parameters changed */
374 u16 mode = info->ht_operation_mode;
377 wlc_protection_upd(wl->wlc, WLC_PROT_N_CFG,
378 mode & IEEE80211_HT_OP_MODE_PROTECTION);
379 wlc_protection_upd(wl->wlc, WLC_PROT_N_NONGF,
380 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
381 wlc_protection_upd(wl->wlc, WLC_PROT_N_OBSS,
382 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
385 if (changed & BSS_CHANGED_BASIC_RATES) {
386 struct ieee80211_supported_band *bi;
389 struct wl_rateset rs;
392 /* retrieve the current rates */
394 error = wlc_ioctl(wl->wlc, WLC_GET_CURR_RATESET,
395 &rs, sizeof(rs), NULL);
398 wiphy_err(wiphy, "%s: retrieve rateset failed: %d\n",
402 br_mask = info->basic_rates;
403 bi = hw->wiphy->bands[wlc_get_curband(wl->wlc)];
404 for (i = 0; i < bi->n_bitrates; i++) {
405 /* convert to internal rate value */
406 rate = (bi->bitrates[i].bitrate << 1) / 10;
408 /* set/clear basic rate flag */
409 brcms_set_basic_rate(&rs, rate, br_mask & 1);
413 /* update the rate set */
415 wlc_ioctl(wl->wlc, WLC_SET_RATESET, &rs, sizeof(rs), NULL);
418 if (changed & BSS_CHANGED_BEACON_INT) {
419 /* Beacon interval changed */
421 wlc_set(wl->wlc, WLC_SET_BCNPRD, info->beacon_int);
424 if (changed & BSS_CHANGED_BSSID) {
425 /* BSSID changed, for whatever reason (IBSS and managed mode) */
427 wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
431 if (changed & BSS_CHANGED_BEACON) {
432 /* Beacon data changed, retrieve new beacon (beaconing modes) */
433 wiphy_err(wiphy, "%s: beacon changed\n", __func__);
435 if (changed & BSS_CHANGED_BEACON_ENABLED) {
436 /* Beaconing should be enabled/disabled (beaconing modes) */
437 wiphy_err(wiphy, "%s: Beacon enabled: %s\n", __func__,
438 info->enable_beacon ? "true" : "false");
440 if (changed & BSS_CHANGED_CQM) {
441 /* Connection quality monitor config changed */
442 wiphy_err(wiphy, "%s: cqm change: threshold %d, hys %d "
443 " (implement)\n", __func__, info->cqm_rssi_thold,
444 info->cqm_rssi_hyst);
446 if (changed & BSS_CHANGED_IBSS) {
447 /* IBSS join status changed */
448 wiphy_err(wiphy, "%s: IBSS joined: %s (implement)\n", __func__,
449 info->ibss_joined ? "true" : "false");
451 if (changed & BSS_CHANGED_ARP_FILTER) {
452 /* Hardware ARP filter address list or state changed */
453 wiphy_err(wiphy, "%s: arp filtering: enabled %s, count %d"
454 " (implement)\n", __func__, info->arp_filter_enabled ?
455 "true" : "false", info->arp_addr_cnt);
457 if (changed & BSS_CHANGED_QOS) {
459 * QoS for this association was enabled/disabled.
460 * Note that it is only ever disabled for station mode.
462 wiphy_err(wiphy, "%s: qos enabled: %s (implement)\n", __func__,
463 info->qos ? "true" : "false");
465 if (changed & BSS_CHANGED_IDLE) {
466 /* Idle changed for this BSS/interface */
467 wiphy_err(wiphy, "%s: BSS idle: %s (implement)\n", __func__,
468 info->idle ? "true" : "false");
474 brcms_ops_configure_filter(struct ieee80211_hw *hw,
475 unsigned int changed_flags,
476 unsigned int *total_flags, u64 multicast)
478 struct brcms_info *wl = hw->priv;
479 struct wiphy *wiphy = hw->wiphy;
481 changed_flags &= MAC_FILTERS;
482 *total_flags &= MAC_FILTERS;
483 if (changed_flags & FIF_PROMISC_IN_BSS)
484 wiphy_err(wiphy, "FIF_PROMISC_IN_BSS\n");
485 if (changed_flags & FIF_ALLMULTI)
486 wiphy_err(wiphy, "FIF_ALLMULTI\n");
487 if (changed_flags & FIF_FCSFAIL)
488 wiphy_err(wiphy, "FIF_FCSFAIL\n");
489 if (changed_flags & FIF_PLCPFAIL)
490 wiphy_err(wiphy, "FIF_PLCPFAIL\n");
491 if (changed_flags & FIF_CONTROL)
492 wiphy_err(wiphy, "FIF_CONTROL\n");
493 if (changed_flags & FIF_OTHER_BSS)
494 wiphy_err(wiphy, "FIF_OTHER_BSS\n");
495 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
497 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
498 wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
499 wlc_mac_bcn_promisc_change(wl->wlc, 1);
501 wlc_mac_bcn_promisc_change(wl->wlc, 0);
502 wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
510 brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
515 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw)
517 struct brcms_info *wl = hw->priv;
519 wlc_scan_start(wl->wlc);
524 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw)
526 struct brcms_info *wl = hw->priv;
528 wlc_scan_stop(wl->wlc);
533 static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
535 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
540 brcms_ops_get_stats(struct ieee80211_hw *hw,
541 struct ieee80211_low_level_stats *stats)
543 struct brcms_info *wl = hw->priv;
548 stats->dot11ACKFailureCount = 0;
549 stats->dot11RTSFailureCount = 0;
550 stats->dot11FCSErrorCount = 0;
551 stats->dot11RTSSuccessCount = 0;
557 brcms_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
558 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
562 wiphy_err(hw->wiphy, "%s: Unknown cmd = %d\n", __func__,
570 brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
571 const struct ieee80211_tx_queue_params *params)
573 struct brcms_info *wl = hw->priv;
576 wlc_wme_setparams(wl->wlc, queue, params, true);
582 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw)
584 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
589 brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
590 struct ieee80211_sta *sta)
595 struct brcms_info *wl = hw->priv;
598 scb = (struct scb *)sta->drv_priv;
599 memset(scb, 0, sizeof(struct scb));
600 for (i = 0; i < NUMPRIO; i++)
601 scb->seqctl[i] = 0xFFFF;
602 scb->seqctl_nonqos = 0xFFFF;
603 scb->magic = SCB_MAGIC;
605 wl->pub->global_scb = scb;
606 wl->pub->global_ampdu = &(scb->scb_ampdu);
607 wl->pub->global_ampdu->scb = scb;
608 wl->pub->global_ampdu->max_pdu = 16;
609 brcmu_pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
610 AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
612 sta->ht_cap.ht_supported = true;
613 sta->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
614 sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
615 sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
616 IEEE80211_HT_CAP_SGI_20 |
617 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
619 /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
624 brcms_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
625 struct ieee80211_sta *sta)
631 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
632 struct ieee80211_vif *vif,
633 enum ieee80211_ampdu_mlme_action action,
634 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
637 struct scb *scb = (struct scb *)sta->drv_priv;
638 struct brcms_info *wl = hw->priv;
641 if (WARN_ON(scb->magic != SCB_MAGIC))
644 case IEEE80211_AMPDU_RX_START:
646 case IEEE80211_AMPDU_RX_STOP:
648 case IEEE80211_AMPDU_TX_START:
650 status = wlc_aggregatable(wl->wlc, tid);
653 wiphy_err(wl->wiphy, "START: tid %d is not agg\'able\n",
657 /* XXX: Use the starting sequence number provided ... */
659 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
662 case IEEE80211_AMPDU_TX_STOP:
664 wlc_ampdu_flush(wl->wlc, sta, tid);
666 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
668 case IEEE80211_AMPDU_TX_OPERATIONAL:
669 /* Not sure what to do here */
670 /* Power save wakeup */
673 wiphy_err(wl->wiphy, "%s: Invalid command, ignoring\n",
680 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
682 struct brcms_info *wl = HW_TO_WL(hw);
686 blocked = wlc_check_radio_disabled(wl->wlc);
689 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
692 static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop)
694 struct brcms_info *wl = HW_TO_WL(hw);
696 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
698 /* wait for packet queue and dma fifos to run empty */
700 wlc_wait_for_tx_completion(wl->wlc, drop);
704 static const struct ieee80211_ops brcms_ops = {
706 .start = brcms_ops_start,
707 .stop = brcms_ops_stop,
708 .add_interface = brcms_ops_add_interface,
709 .remove_interface = brcms_ops_remove_interface,
710 .config = brcms_ops_config,
711 .bss_info_changed = brcms_ops_bss_info_changed,
712 .configure_filter = brcms_ops_configure_filter,
713 .set_tim = brcms_ops_set_tim,
714 .sw_scan_start = brcms_ops_sw_scan_start,
715 .sw_scan_complete = brcms_ops_sw_scan_complete,
716 .set_tsf = brcms_ops_set_tsf,
717 .get_stats = brcms_ops_get_stats,
718 .sta_notify = brcms_ops_sta_notify,
719 .conf_tx = brcms_ops_conf_tx,
720 .get_tsf = brcms_ops_get_tsf,
721 .sta_add = brcms_ops_sta_add,
722 .sta_remove = brcms_ops_sta_remove,
723 .ampdu_action = brcms_ops_ampdu_action,
724 .rfkill_poll = brcms_ops_rfkill_poll,
725 .flush = brcms_ops_flush,
729 * is called in brcms_pci_probe() context, therefore no locking required.
731 static int brcms_set_hint(struct brcms_info *wl, char *abbrev)
733 return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
737 * attach to the WL device.
739 * Attach to the WL device identified by vendor and device parameters.
740 * regs is a host accessible memory address pointing to WL device registers.
742 * brcms_attach is not defined as static because in the case where no bus
743 * is defined, wl_attach will never be called, and thus, gcc will issue
744 * a warning that this function is defined but not used if we declare
748 * is called in brcms_pci_probe() context, therefore no locking required.
750 static struct brcms_info *brcms_attach(u16 vendor, u16 device,
752 uint bustype, void *btparam, uint irq)
754 struct brcms_info *wl = NULL;
756 unsigned long base_addr;
757 struct ieee80211_hw *hw;
760 unit = n_adapters_found;
767 /* allocate private info */
768 hw = pci_get_drvdata(btparam); /* btparam == pdev */
771 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
773 wl->wiphy = hw->wiphy;
775 atomic_set(&wl->callbacks, 0);
777 /* setup the bottom half handler */
778 tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
784 if (bustype == PCI_BUS || bustype == RPC_BUS) {
788 BCMMSG(wl->wiphy, "force to PCI\n");
790 wl->bcm_bustype = bustype;
792 wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
793 if (wl->regsva == NULL) {
794 wiphy_err(wl->wiphy, "wl%d: ioremap() failed\n", unit);
797 spin_lock_init(&wl->lock);
798 spin_lock_init(&wl->isr_lock);
801 if (brcms_request_fw(wl, (struct pci_dev *)btparam) < 0) {
802 wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in "
803 "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm");
804 brcms_release_fw(wl);
805 brcms_remove((struct pci_dev *)btparam);
809 /* common load-time initialization */
810 wl->wlc = wlc_attach((void *)wl, vendor, device, unit, false,
811 wl->regsva, wl->bcm_bustype, btparam, &err);
812 brcms_release_fw(wl);
814 wiphy_err(wl->wiphy, "%s: wlc_attach() failed with code %d\n",
815 KBUILD_MODNAME, err);
818 wl->pub = wlc_pub(wl->wlc);
820 wl->pub->ieee_hw = hw;
822 if (wlc_set_par(wl->wlc, IOV_MPC, 0) < 0) {
823 wiphy_err(wl->wiphy, "wl%d: Error setting MPC variable to 0\n",
827 /* register our interrupt handler */
828 if (request_irq(irq, brcms_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
829 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
834 /* register module */
835 wlc_module_register(wl->pub, "linux", wl, wl_linux_watchdog, NULL);
837 if (ieee_hw_init(hw)) {
838 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
843 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
844 if (WARN_ON(!is_valid_ether_addr(perm)))
846 SET_IEEE80211_PERM_ADDR(hw, perm);
848 err = ieee80211_register_hw(hw);
850 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
851 "%d\n", __func__, err);
854 if (wl->pub->srom_ccode[0])
855 err = brcms_set_hint(wl, wl->pub->srom_ccode);
857 err = brcms_set_hint(wl, "US");
859 wiphy_err(wl->wiphy, "%s: regulatory_hint failed, status %d\n",
873 #define CHAN2GHZ(channel, freqency, chflags) { \
874 .band = IEEE80211_BAND_2GHZ, \
875 .center_freq = (freqency), \
876 .hw_value = (channel), \
878 .max_antenna_gain = 0, \
882 static struct ieee80211_channel brcms_2ghz_chantable[] = {
883 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
884 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
885 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
886 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
887 CHAN2GHZ(5, 2432, 0),
888 CHAN2GHZ(6, 2437, 0),
889 CHAN2GHZ(7, 2442, 0),
890 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
891 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
892 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
893 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
895 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
896 IEEE80211_CHAN_NO_HT40PLUS),
898 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
899 IEEE80211_CHAN_NO_HT40PLUS),
901 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
902 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
905 #define CHAN5GHZ(channel, chflags) { \
906 .band = IEEE80211_BAND_5GHZ, \
907 .center_freq = 5000 + 5*(channel), \
908 .hw_value = (channel), \
910 .max_antenna_gain = 0, \
914 static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
916 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
917 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
918 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
919 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
922 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
923 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
925 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
926 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
928 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
929 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
931 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
932 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
935 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
936 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
938 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
939 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
941 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
942 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
944 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
945 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
947 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
948 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
950 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
951 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
953 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
954 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
956 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
957 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
959 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
960 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
962 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
963 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
965 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
966 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
967 IEEE80211_CHAN_NO_HT40MINUS),
969 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
970 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
971 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
972 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
973 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
976 #define RATE(rate100m, _flags) { \
977 .bitrate = (rate100m), \
979 .hw_value = (rate100m / 5), \
982 static struct ieee80211_rate legacy_ratetable[] = {
984 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
985 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
986 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
997 static struct ieee80211_supported_band brcms_band_2GHz_nphy = {
998 .band = IEEE80211_BAND_2GHZ,
999 .channels = brcms_2ghz_chantable,
1000 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
1001 .bitrates = legacy_ratetable,
1002 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
1004 /* from include/linux/ieee80211.h */
1005 .cap = IEEE80211_HT_CAP_GRN_FLD |
1006 IEEE80211_HT_CAP_SGI_20 |
1007 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
1008 .ht_supported = true,
1009 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1010 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1012 /* placeholders for now */
1013 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1015 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1019 static struct ieee80211_supported_band brcms_band_5GHz_nphy = {
1020 .band = IEEE80211_BAND_5GHZ,
1021 .channels = brcms_5ghz_nphy_chantable,
1022 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
1023 .bitrates = legacy_ratetable + 4,
1024 .n_bitrates = ARRAY_SIZE(legacy_ratetable) - 4,
1026 /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
1027 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT, /* No 40 mhz yet */
1028 .ht_supported = true,
1029 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1030 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1032 /* placeholders for now */
1033 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1035 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1040 * is called in brcms_pci_probe() context, therefore no locking required.
1042 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1044 struct brcms_info *wl = HW_TO_WL(hw);
1050 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
1051 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1053 if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
1054 wiphy_err(hw->wiphy, "Phy list failed\n");
1057 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1058 if (phy_list[0] == 'c') {
1060 brcms_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
1061 brcms_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
1063 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &brcms_band_2GHz_nphy;
1068 /* Assume all bands use the same phy. True for 11n devices. */
1069 if (NBANDS_PUB(wl->pub) > 1) {
1071 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1072 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1073 &brcms_band_5GHz_nphy;
1082 * is called in brcms_pci_probe() context, therefore no locking required.
1084 static int ieee_hw_init(struct ieee80211_hw *hw)
1086 hw->flags = IEEE80211_HW_SIGNAL_DBM
1087 /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
1088 | IEEE80211_HW_REPORTS_TX_ACK_STATUS
1089 | IEEE80211_HW_AMPDU_AGGREGATION;
1091 hw->extra_tx_headroom = wlc_get_header_len();
1092 hw->queues = N_TX_QUEUES;
1093 /* FIXME: this doesn't seem to be used properly in minstrel_ht.
1094 * mac80211/status.c:ieee80211_tx_status() checks this value,
1095 * but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1096 * appears to always set 3 rates
1098 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1100 hw->channel_change_time = 7 * 1000; /* channel change time is dependent on chip and band */
1101 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1103 hw->rate_control_algorithm = "minstrel_ht";
1105 hw->sta_data_size = sizeof(struct scb);
1106 return ieee_hw_rate_init(hw);
1110 * determines if a device is a WL device, and if so, attaches it.
1112 * This function determines if a device pointed to by pdev is a WL device,
1113 * and if so, performs a brcms_attach() on it.
1115 * Perimeter lock is initialized in the course of this function.
1117 static int __devinit
1118 brcms_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1121 struct brcms_info *wl;
1122 struct ieee80211_hw *hw;
1125 dev_info(&pdev->dev, "bus %d slot %d func %d irq %d\n",
1126 pdev->bus->number, PCI_SLOT(pdev->devfn),
1127 PCI_FUNC(pdev->devfn), pdev->irq);
1129 if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1130 ((pdev->device != 0x0576) &&
1131 ((pdev->device & 0xff00) != 0x4300) &&
1132 ((pdev->device & 0xff00) != 0x4700) &&
1133 ((pdev->device < 43000) || (pdev->device > 43999))))
1136 rc = pci_enable_device(pdev);
1138 pr_err("%s: Cannot enable device %d-%d_%d\n",
1139 __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1140 PCI_FUNC(pdev->devfn));
1143 pci_set_master(pdev);
1145 pci_read_config_dword(pdev, 0x40, &val);
1146 if ((val & 0x0000ff00) != 0)
1147 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1149 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1151 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1155 SET_IEEE80211_DEV(hw, &pdev->dev);
1157 pci_set_drvdata(pdev, hw);
1159 memset(hw->priv, 0, sizeof(*wl));
1161 wl = brcms_attach(pdev->vendor, pdev->device,
1162 pci_resource_start(pdev, 0), PCI_BUS, pdev,
1166 pr_err("%s: %s: brcms_attach failed!\n", KBUILD_MODNAME,
1173 static int brcms_suspend(struct pci_dev *pdev, pm_message_t state)
1175 struct brcms_info *wl;
1176 struct ieee80211_hw *hw;
1178 hw = pci_get_drvdata(pdev);
1181 wiphy_err(wl->wiphy,
1182 "brcms_suspend: pci_get_drvdata failed\n");
1186 /* only need to flag hw is down for proper resume */
1188 wl->pub->hw_up = false;
1191 pci_save_state(pdev);
1192 pci_disable_device(pdev);
1193 return pci_set_power_state(pdev, PCI_D3hot);
1196 static int brcms_resume(struct pci_dev *pdev)
1198 struct brcms_info *wl;
1199 struct ieee80211_hw *hw;
1203 hw = pci_get_drvdata(pdev);
1206 wiphy_err(wl->wiphy,
1207 "wl: brcms_resume: pci_get_drvdata failed\n");
1211 err = pci_set_power_state(pdev, PCI_D0);
1215 pci_restore_state(pdev);
1217 err = pci_enable_device(pdev);
1221 pci_set_master(pdev);
1223 pci_read_config_dword(pdev, 0x40, &val);
1224 if ((val & 0x0000ff00) != 0)
1225 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1228 * done. driver will be put in up state
1229 * in brcms_ops_add_interface() call.
1235 * called from both kernel as from this kernel module.
1236 * precondition: perimeter lock is not acquired.
1238 static void brcms_remove(struct pci_dev *pdev)
1240 struct brcms_info *wl;
1241 struct ieee80211_hw *hw;
1244 hw = pci_get_drvdata(pdev);
1247 pr_err("wl: brcms_remove: pci_get_drvdata failed\n");
1252 status = wlc_chipmatch(pdev->vendor, pdev->device);
1255 wiphy_err(wl->wiphy, "wl: brcms_remove: wlc_chipmatch "
1260 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1261 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1262 ieee80211_unregister_hw(hw);
1267 pci_disable_device(pdev);
1271 pci_set_drvdata(pdev, NULL);
1272 ieee80211_free_hw(hw);
1275 static struct pci_driver brcms_pci_driver = {
1276 .name = KBUILD_MODNAME,
1277 .probe = brcms_pci_probe,
1278 .suspend = brcms_suspend,
1279 .resume = brcms_resume,
1280 .remove = __devexit_p(brcms_remove),
1281 .id_table = brcms_pci_id_table,
1285 * This is the main entry point for the WL driver.
1287 * This function determines if a device pointed to by pdev is a WL device,
1288 * and if so, performs a brcms_attach() on it.
1291 static int __init brcms_module_init(void)
1293 int error = -ENODEV;
1296 if (msglevel != 0xdeadbeef)
1297 brcm_msg_level = msglevel;
1298 if (phymsglevel != 0xdeadbeef)
1299 phyhal_msg_level = phymsglevel;
1302 error = pci_register_driver(&brcms_pci_driver);
1312 * This function unloads the WL driver from the system.
1314 * This function unconditionally unloads the WL driver module from the
1318 static void __exit brcms_module_exit(void)
1320 pci_unregister_driver(&brcms_pci_driver);
1324 module_init(brcms_module_init);
1325 module_exit(brcms_module_exit);
1328 * This function frees the WL per-device resources.
1330 * This function frees resources owned by the WL device pointed to
1331 * by the wl parameter.
1333 * precondition: can both be called locked and unlocked
1336 static void brcms_free(struct brcms_info *wl)
1338 struct brcms_timer *t, *next;
1340 /* free ucode data */
1342 brcms_ucode_data_free();
1344 free_irq(wl->irq, wl);
1347 tasklet_kill(&wl->tasklet);
1350 wlc_module_unregister(wl->pub, "linux", wl);
1353 /* free common resources */
1355 wlc_detach(wl->wlc);
1360 /* virtual interface deletion is deferred so we cannot spinwait */
1362 /* wait for all pending callbacks to complete */
1363 while (atomic_read(&wl->callbacks) > 0)
1367 for (t = wl->timers; t; t = next) {
1376 * unregister_netdev() calls get_stats() which may read chip registers
1377 * so we cannot unmap the chip registers until after calling unregister_netdev() .
1379 if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1380 wl->bcm_bustype != JTAG_BUS) {
1381 iounmap((void *)wl->regsva);
1386 /* flags the given rate in rateset as requested */
1387 static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br)
1391 for (i = 0; i < rs->count; i++) {
1392 if (rate != (rs->rates[i] & 0x7f))
1396 rs->rates[i] |= WLC_RATE_FLAG;
1398 rs->rates[i] &= WLC_RATE_MASK;
1404 * precondition: perimeter lock has been acquired
1406 void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1407 bool state, int prio)
1409 wiphy_err(wl->wiphy, "Shouldn't be here %s\n", __func__);
1413 * precondition: perimeter lock has been acquired
1415 void brcms_init(struct brcms_info *wl)
1417 BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
1424 * precondition: perimeter lock has been acquired
1426 uint brcms_reset(struct brcms_info *wl)
1428 BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
1431 /* dpc will not be rescheduled */
1438 * These are interrupt on/off entry points. Disable interrupts
1439 * during interrupt state transition.
1441 void brcms_intrson(struct brcms_info *wl)
1443 unsigned long flags;
1445 INT_LOCK(wl, flags);
1446 wlc_intrson(wl->wlc);
1447 INT_UNLOCK(wl, flags);
1451 * precondition: perimeter lock has been acquired
1453 bool wl_alloc_dma_resources(struct brcms_info *wl, uint addrwidth)
1458 u32 brcms_intrsoff(struct brcms_info *wl)
1460 unsigned long flags;
1463 INT_LOCK(wl, flags);
1464 status = wlc_intrsoff(wl->wlc);
1465 INT_UNLOCK(wl, flags);
1469 void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1471 unsigned long flags;
1473 INT_LOCK(wl, flags);
1474 wlc_intrsrestore(wl->wlc, macintmask);
1475 INT_UNLOCK(wl, flags);
1479 * precondition: perimeter lock has been acquired
1481 int brcms_up(struct brcms_info *wl)
1488 error = wlc_up(wl->wlc);
1494 * precondition: perimeter lock has been acquired
1496 void brcms_down(struct brcms_info *wl)
1498 uint callbacks, ret_val = 0;
1500 /* call common down function */
1501 ret_val = wlc_down(wl->wlc);
1502 callbacks = atomic_read(&wl->callbacks) - ret_val;
1504 /* wait for down callbacks to complete */
1507 /* For HIGH_only driver, it's important to actually schedule other work,
1508 * not just spin wait since everything runs at schedule level
1510 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1515 static irqreturn_t brcms_isr(int irq, void *dev_id)
1517 struct brcms_info *wl;
1519 unsigned long flags;
1521 wl = (struct brcms_info *) dev_id;
1523 ISR_LOCK(wl, flags);
1525 /* call common first level interrupt handler */
1526 ours = wlc_isr(wl->wlc, &wantdpc);
1528 /* if more to do... */
1531 /* ...and call the second level interrupt handler */
1533 tasklet_schedule(&wl->tasklet);
1537 ISR_UNLOCK(wl, flags);
1539 return IRQ_RETVAL(ours);
1542 static void brcms_dpc(unsigned long data)
1544 struct brcms_info *wl;
1546 wl = (struct brcms_info *) data;
1550 /* call the common second level interrupt handler */
1553 unsigned long flags;
1555 INT_LOCK(wl, flags);
1556 wlc_intrsupd(wl->wlc);
1557 INT_UNLOCK(wl, flags);
1560 wl->resched = wlc_dpc(wl->wlc, true);
1563 /* wlc_dpc() may bring the driver down */
1567 /* re-schedule dpc */
1569 tasklet_schedule(&wl->tasklet);
1571 /* re-enable interrupts */
1580 * is called by the kernel from software irq context
1582 static void brcms_timer(unsigned long data)
1584 _brcms_timer((struct brcms_timer *) data);
1588 * precondition: perimeter lock is not acquired
1590 static void _brcms_timer(struct brcms_timer *t)
1596 t->timer.expires = jiffies + t->ms * HZ / 1000;
1597 atomic_inc(&t->wl->callbacks);
1598 add_timer(&t->timer);
1606 atomic_dec(&t->wl->callbacks);
1612 * Adds a timer to the list. Caller supplies a timer function.
1613 * Is called from wlc.
1615 * precondition: perimeter lock has been acquired
1617 struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1618 void (*fn) (void *arg),
1619 void *arg, const char *name)
1621 struct brcms_timer *t;
1623 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1625 wiphy_err(wl->wiphy, "wl%d: brcms_init_timer: out of memory\n",
1630 init_timer(&t->timer);
1631 t->timer.data = (unsigned long) t;
1632 t->timer.function = brcms_timer;
1636 t->next = wl->timers;
1640 t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1642 strcpy(t->name, name);
1648 /* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1649 * as well as it's easier to make it periodic
1651 * precondition: perimeter lock has been acquired
1653 void brcms_add_timer(struct brcms_info *wl, struct brcms_timer *t, uint ms,
1658 wiphy_err(wl->wiphy, "%s: Already set. Name: %s, per %d\n",
1659 __func__, t->name, periodic);
1663 t->periodic = (bool) periodic;
1665 t->timer.expires = jiffies + ms * HZ / 1000;
1667 atomic_inc(&wl->callbacks);
1668 add_timer(&t->timer);
1672 * return true if timer successfully deleted, false if still pending
1674 * precondition: perimeter lock has been acquired
1676 bool brcms_del_timer(struct brcms_info *wl, struct brcms_timer *t)
1680 if (!del_timer(&t->timer)) {
1683 atomic_dec(&wl->callbacks);
1690 * precondition: perimeter lock has been acquired
1692 void brcms_free_timer(struct brcms_info *wl, struct brcms_timer *t)
1694 struct brcms_timer *tmp;
1696 /* delete the timer in case it is active */
1697 brcms_del_timer(wl, t);
1699 if (wl->timers == t) {
1700 wl->timers = wl->timers->next;
1711 if (tmp->next == t) {
1712 tmp->next = t->next;
1725 * runs in software irq context
1727 * precondition: perimeter lock is not acquired
1729 static int wl_linux_watchdog(void *ctx)
1734 struct firmware_hdr {
1740 char *brcms_firmwares[MAX_FW_IMAGES] = {
1746 * precondition: perimeter lock has been acquired
1748 int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1752 struct firmware_hdr *hdr;
1753 for (i = 0; i < wl->fw.fw_cnt; i++) {
1754 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1755 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1757 if (hdr->idx == idx) {
1758 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1759 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1760 if (*pbuf == NULL) {
1761 wiphy_err(wl->wiphy, "fail to alloc %d"
1762 " bytes\n", hdr->len);
1765 memcpy(*pbuf, pdata, hdr->len);
1770 wiphy_err(wl->wiphy, "ERROR: ucode buf tag:%d can not be found!\n",
1778 * Precondition: Since this function is called in brcms_pci_probe() context,
1779 * no locking is required.
1781 int brcms_ucode_init_uint(struct brcms_info *wl, u32 *data, u32 idx)
1785 struct firmware_hdr *hdr;
1786 for (i = 0; i < wl->fw.fw_cnt; i++) {
1787 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1788 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1790 if (hdr->idx == idx) {
1791 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1792 if (hdr->len != 4) {
1793 wiphy_err(wl->wiphy,
1794 "ERROR: fw hdr len\n");
1797 *data = *((u32 *) pdata);
1802 wiphy_err(wl->wiphy, "ERROR: ucode tag:%d can not be found!\n", idx);
1807 * Precondition: Since this function is called in brcms_pci_probe() context,
1808 * no locking is required.
1810 static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev)
1813 struct device *device = &pdev->dev;
1817 memset((void *)&wl->fw, 0, sizeof(struct brcms_firmware));
1818 for (i = 0; i < MAX_FW_IMAGES; i++) {
1819 if (brcms_firmwares[i] == NULL)
1821 sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
1822 UCODE_LOADER_API_VER);
1823 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1825 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1826 KBUILD_MODNAME, fw_name);
1829 sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
1830 UCODE_LOADER_API_VER);
1831 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1833 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1834 KBUILD_MODNAME, fw_name);
1837 wl->fw.hdr_num_entries[i] =
1838 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
1841 return brcms_ucode_data_init(wl);
1845 * precondition: can both be called locked and unlocked
1847 void brcms_ucode_free_buf(void *p)
1853 * Precondition: Since this function is called in brcms_pci_probe() context,
1854 * no locking is required.
1856 static void brcms_release_fw(struct brcms_info *wl)
1859 for (i = 0; i < MAX_FW_IMAGES; i++) {
1860 release_firmware(wl->fw.fw_bin[i]);
1861 release_firmware(wl->fw.fw_hdr[i]);
1867 * checks validity of all firmware images loaded from user space
1869 * Precondition: Since this function is called in brcms_pci_probe() context,
1870 * no locking is required.
1872 int brcms_check_firmwares(struct brcms_info *wl)
1877 const struct firmware *fw;
1878 const struct firmware *fw_hdr;
1879 struct firmware_hdr *ucode_hdr;
1880 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1881 fw = wl->fw.fw_bin[i];
1882 fw_hdr = wl->fw.fw_hdr[i];
1883 if (fw == NULL && fw_hdr == NULL) {
1885 } else if (fw == NULL || fw_hdr == NULL) {
1886 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1889 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1890 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1891 "size %zu/%zu\n", __func__, fw_hdr->size,
1892 sizeof(struct firmware_hdr));
1894 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1895 wiphy_err(wl->wiphy, "%s: out of bounds fw file size "
1896 "%zu\n", __func__, fw->size);
1899 /* check if ucode section overruns firmware image */
1900 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1901 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1902 !rc; entry++, ucode_hdr++) {
1903 if (ucode_hdr->offset + ucode_hdr->len >
1905 wiphy_err(wl->wiphy,
1906 "%s: conflicting bin/hdr\n",
1913 if (rc == 0 && wl->fw.fw_cnt != i) {
1914 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1922 * precondition: perimeter lock has been acquired
1924 bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1926 bool blocked = wlc_check_radio_disabled(wl->wlc);
1929 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1931 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1937 * precondition: perimeter lock has been acquired
1939 void brcms_msleep(struct brcms_info *wl, uint ms)