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/etherdevice.h>
20 #include <linux/pci.h>
21 #include <linux/sched.h>
22 #include <linux/firmware.h>
23 #include <net/mac80211.h>
26 #include "phy/phy_int.h"
31 #include "ucode_loader.h"
32 #include "mac80211_if.h"
34 #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
36 #define LOCK(wl) spin_lock_bh(&(wl)->lock)
37 #define UNLOCK(wl) spin_unlock_bh(&(wl)->lock)
39 /* locking from inside brcms_isr */
40 #define ISR_LOCK(wl, flags)\
42 spin_lock(&(wl)->isr_lock);\
46 #define ISR_UNLOCK(wl, flags)\
48 spin_unlock(&(wl)->isr_lock);\
52 /* locking under LOCK() to synchronize with brcms_isr */
53 #define INT_LOCK(wl, flags) spin_lock_irqsave(&(wl)->isr_lock, flags)
54 #define INT_UNLOCK(wl, flags) spin_unlock_irqrestore(&(wl)->isr_lock, flags)
56 static void brcms_timer(unsigned long data);
57 static void _brcms_timer(struct brcms_timer *t);
60 static int ieee_hw_init(struct ieee80211_hw *hw);
61 static int ieee_hw_rate_init(struct ieee80211_hw *hw);
63 static int wl_linux_watchdog(void *ctx);
65 /* Flags we support */
66 #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
72 FIF_BCN_PRBRESP_PROMISC)
74 static int n_adapters_found;
76 static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev);
77 static void brcms_release_fw(struct brcms_info *wl);
79 /* local prototypes */
80 static void brcms_dpc(unsigned long data);
81 static irqreturn_t brcms_isr(int irq, void *dev_id);
83 static int __devinit brcms_pci_probe(struct pci_dev *pdev,
84 const struct pci_device_id *ent);
85 static void brcms_remove(struct pci_dev *pdev);
86 static void brcms_free(struct brcms_info *wl);
87 static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br);
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");
94 /* recognized PCI IDs */
95 static DEFINE_PCI_DEVICE_TABLE(brcms_pci_id_table) = {
96 {PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43225 2G */
97 {PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43224 DUAL */
98 {PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 4313 DUAL */
100 {PCI_VENDOR_ID_BROADCOM, 0x0576, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
104 MODULE_DEVICE_TABLE(pci, brcms_pci_id_table);
107 static int msglevel = 0xdeadbeef;
108 module_param(msglevel, int, 0);
109 static int phymsglevel = 0xdeadbeef;
110 module_param(phymsglevel, int, 0);
113 #define HW_TO_WL(hw) (hw->priv)
114 #define WL_TO_HW(wl) (wl->pub->ieee_hw)
116 /* MAC80211 callback functions */
117 static int brcms_ops_start(struct ieee80211_hw *hw);
118 static void brcms_ops_stop(struct ieee80211_hw *hw);
119 static int brcms_ops_add_interface(struct ieee80211_hw *hw,
120 struct ieee80211_vif *vif);
121 static void brcms_ops_remove_interface(struct ieee80211_hw *hw,
122 struct ieee80211_vif *vif);
123 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed);
124 static void brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
125 struct ieee80211_vif *vif,
126 struct ieee80211_bss_conf *info,
128 static void brcms_ops_configure_filter(struct ieee80211_hw *hw,
129 unsigned int changed_flags,
130 unsigned int *total_flags, u64 multicast);
131 static int brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
133 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw);
134 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw);
135 static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
136 static int brcms_ops_get_stats(struct ieee80211_hw *hw,
137 struct ieee80211_low_level_stats *stats);
138 static void brcms_ops_sta_notify(struct ieee80211_hw *hw,
139 struct ieee80211_vif *vif,
140 enum sta_notify_cmd cmd,
141 struct ieee80211_sta *sta);
142 static int brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
143 const struct ieee80211_tx_queue_params *params);
144 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw);
145 static int brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
146 struct ieee80211_sta *sta);
147 static int brcms_ops_sta_remove(struct ieee80211_hw *hw,
148 struct ieee80211_vif *vif,
149 struct ieee80211_sta *sta);
150 static int brcms_ops_ampdu_action(struct ieee80211_hw *hw,
151 struct ieee80211_vif *vif,
152 enum ieee80211_ampdu_mlme_action action,
153 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
155 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw);
156 static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop);
158 static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
160 struct brcms_info *wl = hw->priv;
164 wiphy_err(wl->wiphy, "ops->tx called while down\n");
168 brcms_c_sendpkt_mac80211(wl->wlc, skb, hw);
173 static int brcms_ops_start(struct ieee80211_hw *hw)
175 struct brcms_info *wl = hw->priv;
178 struct ieee80211_channel *curchan = hw->conf.channel;
181 ieee80211_wake_queues(hw);
183 blocked = brcms_rfkill_set_hw_state(wl);
186 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
191 static void brcms_ops_stop(struct ieee80211_hw *hw)
193 ieee80211_stop_queues(hw);
197 brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
199 struct brcms_info *wl;
202 /* Just STA for now */
203 if (vif->type != NL80211_IFTYPE_AP &&
204 vif->type != NL80211_IFTYPE_MESH_POINT &&
205 vif->type != NL80211_IFTYPE_STATION &&
206 vif->type != NL80211_IFTYPE_WDS &&
207 vif->type != NL80211_IFTYPE_ADHOC) {
208 wiphy_err(hw->wiphy, "%s: Attempt to add type %d, only"
209 " STA for now\n", __func__, vif->type);
219 wiphy_err(hw->wiphy, "%s: brcms_up() returned %d\n", __func__,
226 brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
228 struct brcms_info *wl;
232 /* put driver in down state */
239 * precondition: perimeter lock has been acquired
242 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
243 enum nl80211_channel_type type)
245 struct brcms_info *wl = HW_TO_WL(hw);
249 case NL80211_CHAN_HT20:
250 case NL80211_CHAN_NO_HT:
251 err = brcms_c_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
253 case NL80211_CHAN_HT40MINUS:
254 case NL80211_CHAN_HT40PLUS:
256 "%s: Need to implement 40 Mhz Channels!\n", __func__);
266 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
268 struct ieee80211_conf *conf = &hw->conf;
269 struct brcms_info *wl = HW_TO_WL(hw);
272 struct wiphy *wiphy = hw->wiphy;
275 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
276 if (brcms_c_set_par(wl->wlc, IOV_BCN_LI_BCN,
277 conf->listen_interval) < 0) {
278 wiphy_err(wiphy, "%s: Error setting listen_interval\n",
283 brcms_c_get_par(wl->wlc, IOV_BCN_LI_BCN, &new_int);
285 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
286 wiphy_err(wiphy, "%s: change monitor mode: %s (implement)\n",
287 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
289 if (changed & IEEE80211_CONF_CHANGE_PS)
290 wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n",
291 __func__, conf->flags & IEEE80211_CONF_PS ?
294 if (changed & IEEE80211_CONF_CHANGE_POWER) {
295 if (brcms_c_set_par(wl->wlc, IOV_QTXPOWER,
296 conf->power_level * 4) < 0) {
297 wiphy_err(wiphy, "%s: Error setting power_level\n",
302 brcms_c_get_par(wl->wlc, IOV_QTXPOWER, &new_int);
303 if (new_int != (conf->power_level * 4))
304 wiphy_err(wiphy, "%s: Power level req != actual, %d %d"
305 "\n", __func__, conf->power_level * 4,
308 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
309 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
311 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
313 (wl->wlc, WLC_SET_SRL,
314 conf->short_frame_max_tx_count) < 0) {
315 wiphy_err(wiphy, "%s: Error setting srl\n", __func__);
319 if (brcms_c_set(wl->wlc, WLC_SET_LRL,
320 conf->long_frame_max_tx_count) < 0) {
321 wiphy_err(wiphy, "%s: Error setting lrl\n", __func__);
333 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
334 struct ieee80211_vif *vif,
335 struct ieee80211_bss_conf *info, u32 changed)
337 struct brcms_info *wl = HW_TO_WL(hw);
338 struct wiphy *wiphy = hw->wiphy;
341 if (changed & BSS_CHANGED_ASSOC) {
342 /* association status changed (associated/disassociated)
343 * also implies a change in the AID.
345 wiphy_err(wiphy, "%s: %s: %sassociated\n", KBUILD_MODNAME,
346 __func__, info->assoc ? "" : "dis");
348 brcms_c_associate_upd(wl->wlc, info->assoc);
351 if (changed & BSS_CHANGED_ERP_SLOT) {
352 /* slot timing changed */
353 if (info->use_short_slot)
358 brcms_c_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
362 if (changed & BSS_CHANGED_HT) {
363 /* 802.11n parameters changed */
364 u16 mode = info->ht_operation_mode;
367 brcms_c_protection_upd(wl->wlc, WLC_PROT_N_CFG,
368 mode & IEEE80211_HT_OP_MODE_PROTECTION);
369 brcms_c_protection_upd(wl->wlc, WLC_PROT_N_NONGF,
370 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
371 brcms_c_protection_upd(wl->wlc, WLC_PROT_N_OBSS,
372 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
375 if (changed & BSS_CHANGED_BASIC_RATES) {
376 struct ieee80211_supported_band *bi;
379 struct wl_rateset rs;
382 /* retrieve the current rates */
384 error = brcms_c_ioctl(wl->wlc, WLC_GET_CURR_RATESET,
385 &rs, sizeof(rs), NULL);
388 wiphy_err(wiphy, "%s: retrieve rateset failed: %d\n",
392 br_mask = info->basic_rates;
393 bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
394 for (i = 0; i < bi->n_bitrates; i++) {
395 /* convert to internal rate value */
396 rate = (bi->bitrates[i].bitrate << 1) / 10;
398 /* set/clear basic rate flag */
399 brcms_set_basic_rate(&rs, rate, br_mask & 1);
403 /* update the rate set */
405 brcms_c_ioctl(wl->wlc, WLC_SET_RATESET, &rs, sizeof(rs), NULL);
408 if (changed & BSS_CHANGED_BEACON_INT) {
409 /* Beacon interval changed */
411 brcms_c_set(wl->wlc, WLC_SET_BCNPRD, info->beacon_int);
414 if (changed & BSS_CHANGED_BSSID) {
415 /* BSSID changed, for whatever reason (IBSS and managed mode) */
417 brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
421 if (changed & BSS_CHANGED_BEACON) {
422 /* Beacon data changed, retrieve new beacon (beaconing modes) */
423 wiphy_err(wiphy, "%s: beacon changed\n", __func__);
425 if (changed & BSS_CHANGED_BEACON_ENABLED) {
426 /* Beaconing should be enabled/disabled (beaconing modes) */
427 wiphy_err(wiphy, "%s: Beacon enabled: %s\n", __func__,
428 info->enable_beacon ? "true" : "false");
430 if (changed & BSS_CHANGED_CQM) {
431 /* Connection quality monitor config changed */
432 wiphy_err(wiphy, "%s: cqm change: threshold %d, hys %d "
433 " (implement)\n", __func__, info->cqm_rssi_thold,
434 info->cqm_rssi_hyst);
436 if (changed & BSS_CHANGED_IBSS) {
437 /* IBSS join status changed */
438 wiphy_err(wiphy, "%s: IBSS joined: %s (implement)\n", __func__,
439 info->ibss_joined ? "true" : "false");
441 if (changed & BSS_CHANGED_ARP_FILTER) {
442 /* Hardware ARP filter address list or state changed */
443 wiphy_err(wiphy, "%s: arp filtering: enabled %s, count %d"
444 " (implement)\n", __func__, info->arp_filter_enabled ?
445 "true" : "false", info->arp_addr_cnt);
447 if (changed & BSS_CHANGED_QOS) {
449 * QoS for this association was enabled/disabled.
450 * Note that it is only ever disabled for station mode.
452 wiphy_err(wiphy, "%s: qos enabled: %s (implement)\n", __func__,
453 info->qos ? "true" : "false");
455 if (changed & BSS_CHANGED_IDLE) {
456 /* Idle changed for this BSS/interface */
457 wiphy_err(wiphy, "%s: BSS idle: %s (implement)\n", __func__,
458 info->idle ? "true" : "false");
464 brcms_ops_configure_filter(struct ieee80211_hw *hw,
465 unsigned int changed_flags,
466 unsigned int *total_flags, u64 multicast)
468 struct brcms_info *wl = hw->priv;
469 struct wiphy *wiphy = hw->wiphy;
471 changed_flags &= MAC_FILTERS;
472 *total_flags &= MAC_FILTERS;
473 if (changed_flags & FIF_PROMISC_IN_BSS)
474 wiphy_err(wiphy, "FIF_PROMISC_IN_BSS\n");
475 if (changed_flags & FIF_ALLMULTI)
476 wiphy_err(wiphy, "FIF_ALLMULTI\n");
477 if (changed_flags & FIF_FCSFAIL)
478 wiphy_err(wiphy, "FIF_FCSFAIL\n");
479 if (changed_flags & FIF_PLCPFAIL)
480 wiphy_err(wiphy, "FIF_PLCPFAIL\n");
481 if (changed_flags & FIF_CONTROL)
482 wiphy_err(wiphy, "FIF_CONTROL\n");
483 if (changed_flags & FIF_OTHER_BSS)
484 wiphy_err(wiphy, "FIF_OTHER_BSS\n");
485 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
487 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
488 wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
489 brcms_c_mac_bcn_promisc_change(wl->wlc, 1);
491 brcms_c_mac_bcn_promisc_change(wl->wlc, 0);
492 wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
500 brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
505 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw)
507 struct brcms_info *wl = hw->priv;
509 brcms_c_scan_start(wl->wlc);
514 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw)
516 struct brcms_info *wl = hw->priv;
518 brcms_c_scan_stop(wl->wlc);
523 static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
525 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
530 brcms_ops_get_stats(struct ieee80211_hw *hw,
531 struct ieee80211_low_level_stats *stats)
533 struct brcms_info *wl = hw->priv;
538 stats->dot11ACKFailureCount = 0;
539 stats->dot11RTSFailureCount = 0;
540 stats->dot11FCSErrorCount = 0;
541 stats->dot11RTSSuccessCount = 0;
547 brcms_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
548 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
552 wiphy_err(hw->wiphy, "%s: Unknown cmd = %d\n", __func__,
560 brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
561 const struct ieee80211_tx_queue_params *params)
563 struct brcms_info *wl = hw->priv;
566 brcms_c_wme_setparams(wl->wlc, queue, params, true);
572 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw)
574 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
579 brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
580 struct ieee80211_sta *sta)
585 struct brcms_info *wl = hw->priv;
588 scb = (struct scb *)sta->drv_priv;
589 memset(scb, 0, sizeof(struct scb));
590 for (i = 0; i < NUMPRIO; i++)
591 scb->seqctl[i] = 0xFFFF;
592 scb->seqctl_nonqos = 0xFFFF;
593 scb->magic = SCB_MAGIC;
595 wl->pub->global_scb = scb;
596 wl->pub->global_ampdu = &(scb->scb_ampdu);
597 wl->pub->global_ampdu->scb = scb;
598 wl->pub->global_ampdu->max_pdu = 16;
599 brcmu_pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
600 AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
602 sta->ht_cap.ht_supported = true;
603 sta->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
604 sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
605 sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
606 IEEE80211_HT_CAP_SGI_20 |
607 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
609 /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
614 brcms_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
615 struct ieee80211_sta *sta)
621 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
622 struct ieee80211_vif *vif,
623 enum ieee80211_ampdu_mlme_action action,
624 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
627 struct scb *scb = (struct scb *)sta->drv_priv;
628 struct brcms_info *wl = hw->priv;
631 if (WARN_ON(scb->magic != SCB_MAGIC))
634 case IEEE80211_AMPDU_RX_START:
636 case IEEE80211_AMPDU_RX_STOP:
638 case IEEE80211_AMPDU_TX_START:
640 status = brcms_c_aggregatable(wl->wlc, tid);
643 wiphy_err(wl->wiphy, "START: tid %d is not agg\'able\n",
647 /* XXX: Use the starting sequence number provided ... */
649 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
652 case IEEE80211_AMPDU_TX_STOP:
654 brcms_c_ampdu_flush(wl->wlc, sta, tid);
656 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
658 case IEEE80211_AMPDU_TX_OPERATIONAL:
659 /* Not sure what to do here */
660 /* Power save wakeup */
663 wiphy_err(wl->wiphy, "%s: Invalid command, ignoring\n",
670 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
672 struct brcms_info *wl = HW_TO_WL(hw);
676 blocked = brcms_c_check_radio_disabled(wl->wlc);
679 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
682 static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop)
684 struct brcms_info *wl = HW_TO_WL(hw);
686 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
688 /* wait for packet queue and dma fifos to run empty */
690 brcms_c_wait_for_tx_completion(wl->wlc, drop);
694 static const struct ieee80211_ops brcms_ops = {
696 .start = brcms_ops_start,
697 .stop = brcms_ops_stop,
698 .add_interface = brcms_ops_add_interface,
699 .remove_interface = brcms_ops_remove_interface,
700 .config = brcms_ops_config,
701 .bss_info_changed = brcms_ops_bss_info_changed,
702 .configure_filter = brcms_ops_configure_filter,
703 .set_tim = brcms_ops_set_tim,
704 .sw_scan_start = brcms_ops_sw_scan_start,
705 .sw_scan_complete = brcms_ops_sw_scan_complete,
706 .set_tsf = brcms_ops_set_tsf,
707 .get_stats = brcms_ops_get_stats,
708 .sta_notify = brcms_ops_sta_notify,
709 .conf_tx = brcms_ops_conf_tx,
710 .get_tsf = brcms_ops_get_tsf,
711 .sta_add = brcms_ops_sta_add,
712 .sta_remove = brcms_ops_sta_remove,
713 .ampdu_action = brcms_ops_ampdu_action,
714 .rfkill_poll = brcms_ops_rfkill_poll,
715 .flush = brcms_ops_flush,
719 * is called in brcms_pci_probe() context, therefore no locking required.
721 static int brcms_set_hint(struct brcms_info *wl, char *abbrev)
723 return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
727 * attach to the WL device.
729 * Attach to the WL device identified by vendor and device parameters.
730 * regs is a host accessible memory address pointing to WL device registers.
732 * brcms_attach is not defined as static because in the case where no bus
733 * is defined, wl_attach will never be called, and thus, gcc will issue
734 * a warning that this function is defined but not used if we declare
738 * is called in brcms_pci_probe() context, therefore no locking required.
740 static struct brcms_info *brcms_attach(u16 vendor, u16 device,
742 uint bustype, void *btparam, uint irq)
744 struct brcms_info *wl = NULL;
746 unsigned long base_addr;
747 struct ieee80211_hw *hw;
750 unit = n_adapters_found;
757 /* allocate private info */
758 hw = pci_get_drvdata(btparam); /* btparam == pdev */
761 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
763 wl->wiphy = hw->wiphy;
765 atomic_set(&wl->callbacks, 0);
767 /* setup the bottom half handler */
768 tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
774 if (bustype == PCI_BUS || bustype == RPC_BUS) {
778 BCMMSG(wl->wiphy, "force to PCI\n");
780 wl->bcm_bustype = bustype;
782 wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
783 if (wl->regsva == NULL) {
784 wiphy_err(wl->wiphy, "wl%d: ioremap() failed\n", unit);
787 spin_lock_init(&wl->lock);
788 spin_lock_init(&wl->isr_lock);
791 if (brcms_request_fw(wl, (struct pci_dev *)btparam) < 0) {
792 wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in "
793 "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm");
794 brcms_release_fw(wl);
795 brcms_remove((struct pci_dev *)btparam);
799 /* common load-time initialization */
800 wl->wlc = brcms_c_attach((void *)wl, vendor, device, unit, false,
801 wl->regsva, wl->bcm_bustype, btparam, &err);
802 brcms_release_fw(wl);
804 wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
805 KBUILD_MODNAME, err);
808 wl->pub = brcms_c_pub(wl->wlc);
810 wl->pub->ieee_hw = hw;
812 if (brcms_c_set_par(wl->wlc, IOV_MPC, 0) < 0) {
813 wiphy_err(wl->wiphy, "wl%d: Error setting MPC variable to 0\n",
817 /* register our interrupt handler */
818 if (request_irq(irq, brcms_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
819 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
824 /* register module */
825 brcms_c_module_register(wl->pub, "linux", wl, wl_linux_watchdog, NULL);
827 if (ieee_hw_init(hw)) {
828 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
833 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
834 if (WARN_ON(!is_valid_ether_addr(perm)))
836 SET_IEEE80211_PERM_ADDR(hw, perm);
838 err = ieee80211_register_hw(hw);
840 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
841 "%d\n", __func__, err);
844 if (wl->pub->srom_ccode[0])
845 err = brcms_set_hint(wl, wl->pub->srom_ccode);
847 err = brcms_set_hint(wl, "US");
849 wiphy_err(wl->wiphy, "%s: regulatory_hint failed, status %d\n",
863 #define CHAN2GHZ(channel, freqency, chflags) { \
864 .band = IEEE80211_BAND_2GHZ, \
865 .center_freq = (freqency), \
866 .hw_value = (channel), \
868 .max_antenna_gain = 0, \
872 static struct ieee80211_channel brcms_2ghz_chantable[] = {
873 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
874 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
875 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
876 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
877 CHAN2GHZ(5, 2432, 0),
878 CHAN2GHZ(6, 2437, 0),
879 CHAN2GHZ(7, 2442, 0),
880 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
881 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
882 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
883 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
885 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
886 IEEE80211_CHAN_NO_HT40PLUS),
888 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
889 IEEE80211_CHAN_NO_HT40PLUS),
891 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
892 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
895 #define CHAN5GHZ(channel, chflags) { \
896 .band = IEEE80211_BAND_5GHZ, \
897 .center_freq = 5000 + 5*(channel), \
898 .hw_value = (channel), \
900 .max_antenna_gain = 0, \
904 static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
906 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
907 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
908 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
909 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
912 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
913 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
915 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
916 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
918 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
919 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
921 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
922 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
925 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
926 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
928 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
929 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
931 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
932 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
934 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
935 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
937 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
938 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
940 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
941 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
943 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
944 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
946 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
947 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
949 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
950 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
952 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
953 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
955 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
956 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
957 IEEE80211_CHAN_NO_HT40MINUS),
959 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
960 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
961 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
962 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
963 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
966 #define RATE(rate100m, _flags) { \
967 .bitrate = (rate100m), \
969 .hw_value = (rate100m / 5), \
972 static struct ieee80211_rate legacy_ratetable[] = {
974 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
975 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
976 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
987 static struct ieee80211_supported_band brcms_band_2GHz_nphy = {
988 .band = IEEE80211_BAND_2GHZ,
989 .channels = brcms_2ghz_chantable,
990 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
991 .bitrates = legacy_ratetable,
992 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
994 /* from include/linux/ieee80211.h */
995 .cap = IEEE80211_HT_CAP_GRN_FLD |
996 IEEE80211_HT_CAP_SGI_20 |
997 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
998 .ht_supported = true,
999 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1000 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1002 /* placeholders for now */
1003 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1005 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1009 static struct ieee80211_supported_band brcms_band_5GHz_nphy = {
1010 .band = IEEE80211_BAND_5GHZ,
1011 .channels = brcms_5ghz_nphy_chantable,
1012 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
1013 .bitrates = legacy_ratetable + 4,
1014 .n_bitrates = ARRAY_SIZE(legacy_ratetable) - 4,
1016 /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
1017 .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 */
1018 .ht_supported = true,
1019 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1020 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1022 /* placeholders for now */
1023 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1025 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1030 * is called in brcms_pci_probe() context, therefore no locking required.
1032 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1034 struct brcms_info *wl = HW_TO_WL(hw);
1040 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
1041 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1043 if (brcms_c_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0)
1044 wiphy_err(hw->wiphy, "Phy list failed\n");
1046 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1047 if (phy_list[0] == 'c') {
1049 brcms_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
1050 brcms_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
1052 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &brcms_band_2GHz_nphy;
1057 /* Assume all bands use the same phy. True for 11n devices. */
1058 if (NBANDS_PUB(wl->pub) > 1) {
1060 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1061 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1062 &brcms_band_5GHz_nphy;
1071 * is called in brcms_pci_probe() context, therefore no locking required.
1073 static int ieee_hw_init(struct ieee80211_hw *hw)
1075 hw->flags = IEEE80211_HW_SIGNAL_DBM
1076 /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
1077 | IEEE80211_HW_REPORTS_TX_ACK_STATUS
1078 | IEEE80211_HW_AMPDU_AGGREGATION;
1080 hw->extra_tx_headroom = brcms_c_get_header_len();
1081 hw->queues = N_TX_QUEUES;
1082 /* FIXME: this doesn't seem to be used properly in minstrel_ht.
1083 * mac80211/status.c:ieee80211_tx_status() checks this value,
1084 * but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1085 * appears to always set 3 rates
1087 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1089 hw->channel_change_time = 7 * 1000; /* channel change time is dependent on chip and band */
1090 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1092 hw->rate_control_algorithm = "minstrel_ht";
1094 hw->sta_data_size = sizeof(struct scb);
1095 return ieee_hw_rate_init(hw);
1099 * determines if a device is a WL device, and if so, attaches it.
1101 * This function determines if a device pointed to by pdev is a WL device,
1102 * and if so, performs a brcms_attach() on it.
1104 * Perimeter lock is initialized in the course of this function.
1106 static int __devinit
1107 brcms_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1110 struct brcms_info *wl;
1111 struct ieee80211_hw *hw;
1114 dev_info(&pdev->dev, "bus %d slot %d func %d irq %d\n",
1115 pdev->bus->number, PCI_SLOT(pdev->devfn),
1116 PCI_FUNC(pdev->devfn), pdev->irq);
1118 if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1119 ((pdev->device != 0x0576) &&
1120 ((pdev->device & 0xff00) != 0x4300) &&
1121 ((pdev->device & 0xff00) != 0x4700) &&
1122 ((pdev->device < 43000) || (pdev->device > 43999))))
1125 rc = pci_enable_device(pdev);
1127 pr_err("%s: Cannot enable device %d-%d_%d\n",
1128 __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1129 PCI_FUNC(pdev->devfn));
1132 pci_set_master(pdev);
1134 pci_read_config_dword(pdev, 0x40, &val);
1135 if ((val & 0x0000ff00) != 0)
1136 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1138 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1140 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1144 SET_IEEE80211_DEV(hw, &pdev->dev);
1146 pci_set_drvdata(pdev, hw);
1148 memset(hw->priv, 0, sizeof(*wl));
1150 wl = brcms_attach(pdev->vendor, pdev->device,
1151 pci_resource_start(pdev, 0), PCI_BUS, pdev,
1155 pr_err("%s: %s: brcms_attach failed!\n", KBUILD_MODNAME,
1162 static int brcms_suspend(struct pci_dev *pdev, pm_message_t state)
1164 struct brcms_info *wl;
1165 struct ieee80211_hw *hw;
1167 hw = pci_get_drvdata(pdev);
1170 wiphy_err(wl->wiphy,
1171 "brcms_suspend: pci_get_drvdata failed\n");
1175 /* only need to flag hw is down for proper resume */
1177 wl->pub->hw_up = false;
1180 pci_save_state(pdev);
1181 pci_disable_device(pdev);
1182 return pci_set_power_state(pdev, PCI_D3hot);
1185 static int brcms_resume(struct pci_dev *pdev)
1187 struct brcms_info *wl;
1188 struct ieee80211_hw *hw;
1192 hw = pci_get_drvdata(pdev);
1195 wiphy_err(wl->wiphy,
1196 "wl: brcms_resume: pci_get_drvdata failed\n");
1200 err = pci_set_power_state(pdev, PCI_D0);
1204 pci_restore_state(pdev);
1206 err = pci_enable_device(pdev);
1210 pci_set_master(pdev);
1212 pci_read_config_dword(pdev, 0x40, &val);
1213 if ((val & 0x0000ff00) != 0)
1214 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1217 * done. driver will be put in up state
1218 * in brcms_ops_add_interface() call.
1224 * called from both kernel as from this kernel module.
1225 * precondition: perimeter lock is not acquired.
1227 static void brcms_remove(struct pci_dev *pdev)
1229 struct brcms_info *wl;
1230 struct ieee80211_hw *hw;
1233 hw = pci_get_drvdata(pdev);
1236 pr_err("wl: brcms_remove: pci_get_drvdata failed\n");
1241 status = brcms_c_chipmatch(pdev->vendor, pdev->device);
1244 wiphy_err(wl->wiphy, "wl: brcms_remove: chipmatch "
1249 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1250 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1251 ieee80211_unregister_hw(hw);
1256 pci_disable_device(pdev);
1260 pci_set_drvdata(pdev, NULL);
1261 ieee80211_free_hw(hw);
1264 static struct pci_driver brcms_pci_driver = {
1265 .name = KBUILD_MODNAME,
1266 .probe = brcms_pci_probe,
1267 .suspend = brcms_suspend,
1268 .resume = brcms_resume,
1269 .remove = __devexit_p(brcms_remove),
1270 .id_table = brcms_pci_id_table,
1274 * This is the main entry point for the WL driver.
1276 * This function determines if a device pointed to by pdev is a WL device,
1277 * and if so, performs a brcms_attach() on it.
1280 static int __init brcms_module_init(void)
1282 int error = -ENODEV;
1285 if (msglevel != 0xdeadbeef)
1286 brcm_msg_level = msglevel;
1287 if (phymsglevel != 0xdeadbeef)
1288 phyhal_msg_level = phymsglevel;
1291 error = pci_register_driver(&brcms_pci_driver);
1301 * This function unloads the WL driver from the system.
1303 * This function unconditionally unloads the WL driver module from the
1307 static void __exit brcms_module_exit(void)
1309 pci_unregister_driver(&brcms_pci_driver);
1313 module_init(brcms_module_init);
1314 module_exit(brcms_module_exit);
1317 * This function frees the WL per-device resources.
1319 * This function frees resources owned by the WL device pointed to
1320 * by the wl parameter.
1322 * precondition: can both be called locked and unlocked
1325 static void brcms_free(struct brcms_info *wl)
1327 struct brcms_timer *t, *next;
1329 /* free ucode data */
1331 brcms_ucode_data_free();
1333 free_irq(wl->irq, wl);
1336 tasklet_kill(&wl->tasklet);
1339 brcms_c_module_unregister(wl->pub, "linux", wl);
1342 /* free common resources */
1344 brcms_c_detach(wl->wlc);
1349 /* virtual interface deletion is deferred so we cannot spinwait */
1351 /* wait for all pending callbacks to complete */
1352 while (atomic_read(&wl->callbacks) > 0)
1356 for (t = wl->timers; t; t = next) {
1365 * unregister_netdev() calls get_stats() which may read chip registers
1366 * so we cannot unmap the chip registers until after calling unregister_netdev() .
1368 if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1369 wl->bcm_bustype != JTAG_BUS) {
1370 iounmap((void *)wl->regsva);
1375 /* flags the given rate in rateset as requested */
1376 static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br)
1380 for (i = 0; i < rs->count; i++) {
1381 if (rate != (rs->rates[i] & 0x7f))
1385 rs->rates[i] |= WLC_RATE_FLAG;
1387 rs->rates[i] &= WLC_RATE_MASK;
1393 * precondition: perimeter lock has been acquired
1395 void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1396 bool state, int prio)
1398 wiphy_err(wl->wiphy, "Shouldn't be here %s\n", __func__);
1402 * precondition: perimeter lock has been acquired
1404 void brcms_init(struct brcms_info *wl)
1406 BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
1409 brcms_c_init(wl->wlc);
1413 * precondition: perimeter lock has been acquired
1415 uint brcms_reset(struct brcms_info *wl)
1417 BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
1418 brcms_c_reset(wl->wlc);
1420 /* dpc will not be rescheduled */
1427 * These are interrupt on/off entry points. Disable interrupts
1428 * during interrupt state transition.
1430 void brcms_intrson(struct brcms_info *wl)
1432 unsigned long flags;
1434 INT_LOCK(wl, flags);
1435 brcms_c_intrson(wl->wlc);
1436 INT_UNLOCK(wl, flags);
1440 * precondition: perimeter lock has been acquired
1442 bool wl_alloc_dma_resources(struct brcms_info *wl, uint addrwidth)
1447 u32 brcms_intrsoff(struct brcms_info *wl)
1449 unsigned long flags;
1452 INT_LOCK(wl, flags);
1453 status = brcms_c_intrsoff(wl->wlc);
1454 INT_UNLOCK(wl, flags);
1458 void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1460 unsigned long flags;
1462 INT_LOCK(wl, flags);
1463 brcms_c_intrsrestore(wl->wlc, macintmask);
1464 INT_UNLOCK(wl, flags);
1468 * precondition: perimeter lock has been acquired
1470 int brcms_up(struct brcms_info *wl)
1477 error = brcms_c_up(wl->wlc);
1483 * precondition: perimeter lock has been acquired
1485 void brcms_down(struct brcms_info *wl)
1487 uint callbacks, ret_val = 0;
1489 /* call common down function */
1490 ret_val = brcms_c_down(wl->wlc);
1491 callbacks = atomic_read(&wl->callbacks) - ret_val;
1493 /* wait for down callbacks to complete */
1496 /* For HIGH_only driver, it's important to actually schedule other work,
1497 * not just spin wait since everything runs at schedule level
1499 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1504 static irqreturn_t brcms_isr(int irq, void *dev_id)
1506 struct brcms_info *wl;
1508 unsigned long flags;
1510 wl = (struct brcms_info *) dev_id;
1512 ISR_LOCK(wl, flags);
1514 /* call common first level interrupt handler */
1515 ours = brcms_c_isr(wl->wlc, &wantdpc);
1517 /* if more to do... */
1520 /* ...and call the second level interrupt handler */
1522 tasklet_schedule(&wl->tasklet);
1526 ISR_UNLOCK(wl, flags);
1528 return IRQ_RETVAL(ours);
1531 static void brcms_dpc(unsigned long data)
1533 struct brcms_info *wl;
1535 wl = (struct brcms_info *) data;
1539 /* call the common second level interrupt handler */
1542 unsigned long flags;
1544 INT_LOCK(wl, flags);
1545 brcms_c_intrsupd(wl->wlc);
1546 INT_UNLOCK(wl, flags);
1549 wl->resched = brcms_c_dpc(wl->wlc, true);
1552 /* brcms_c_dpc() may bring the driver down */
1556 /* re-schedule dpc */
1558 tasklet_schedule(&wl->tasklet);
1560 /* re-enable interrupts */
1569 * is called by the kernel from software irq context
1571 static void brcms_timer(unsigned long data)
1573 _brcms_timer((struct brcms_timer *) data);
1577 * precondition: perimeter lock is not acquired
1579 static void _brcms_timer(struct brcms_timer *t)
1585 t->timer.expires = jiffies + t->ms * HZ / 1000;
1586 atomic_inc(&t->wl->callbacks);
1587 add_timer(&t->timer);
1595 atomic_dec(&t->wl->callbacks);
1601 * Adds a timer to the list. Caller supplies a timer function.
1602 * Is called from wlc.
1604 * precondition: perimeter lock has been acquired
1606 struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1607 void (*fn) (void *arg),
1608 void *arg, const char *name)
1610 struct brcms_timer *t;
1612 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1614 wiphy_err(wl->wiphy, "wl%d: brcms_init_timer: out of memory\n",
1619 init_timer(&t->timer);
1620 t->timer.data = (unsigned long) t;
1621 t->timer.function = brcms_timer;
1625 t->next = wl->timers;
1629 t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1631 strcpy(t->name, name);
1637 /* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1638 * as well as it's easier to make it periodic
1640 * precondition: perimeter lock has been acquired
1642 void brcms_add_timer(struct brcms_info *wl, struct brcms_timer *t, uint ms,
1647 wiphy_err(wl->wiphy, "%s: Already set. Name: %s, per %d\n",
1648 __func__, t->name, periodic);
1652 t->periodic = (bool) periodic;
1654 t->timer.expires = jiffies + ms * HZ / 1000;
1656 atomic_inc(&wl->callbacks);
1657 add_timer(&t->timer);
1661 * return true if timer successfully deleted, false if still pending
1663 * precondition: perimeter lock has been acquired
1665 bool brcms_del_timer(struct brcms_info *wl, struct brcms_timer *t)
1669 if (!del_timer(&t->timer)) {
1672 atomic_dec(&wl->callbacks);
1679 * precondition: perimeter lock has been acquired
1681 void brcms_free_timer(struct brcms_info *wl, struct brcms_timer *t)
1683 struct brcms_timer *tmp;
1685 /* delete the timer in case it is active */
1686 brcms_del_timer(wl, t);
1688 if (wl->timers == t) {
1689 wl->timers = wl->timers->next;
1700 if (tmp->next == t) {
1701 tmp->next = t->next;
1714 * runs in software irq context
1716 * precondition: perimeter lock is not acquired
1718 static int wl_linux_watchdog(void *ctx)
1723 struct firmware_hdr {
1729 char *brcms_firmwares[MAX_FW_IMAGES] = {
1735 * precondition: perimeter lock has been acquired
1737 int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1741 struct firmware_hdr *hdr;
1742 for (i = 0; i < wl->fw.fw_cnt; i++) {
1743 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1744 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1746 if (hdr->idx == idx) {
1747 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1748 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1749 if (*pbuf == NULL) {
1750 wiphy_err(wl->wiphy, "fail to alloc %d"
1751 " bytes\n", hdr->len);
1754 memcpy(*pbuf, pdata, hdr->len);
1759 wiphy_err(wl->wiphy, "ERROR: ucode buf tag:%d can not be found!\n",
1767 * Precondition: Since this function is called in brcms_pci_probe() context,
1768 * no locking is required.
1770 int brcms_ucode_init_uint(struct brcms_info *wl, u32 *data, u32 idx)
1774 struct firmware_hdr *hdr;
1775 for (i = 0; i < wl->fw.fw_cnt; i++) {
1776 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1777 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1779 if (hdr->idx == idx) {
1780 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1781 if (hdr->len != 4) {
1782 wiphy_err(wl->wiphy,
1783 "ERROR: fw hdr len\n");
1786 *data = *((u32 *) pdata);
1791 wiphy_err(wl->wiphy, "ERROR: ucode tag:%d can not be found!\n", idx);
1796 * Precondition: Since this function is called in brcms_pci_probe() context,
1797 * no locking is required.
1799 static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev)
1802 struct device *device = &pdev->dev;
1806 memset((void *)&wl->fw, 0, sizeof(struct brcms_firmware));
1807 for (i = 0; i < MAX_FW_IMAGES; i++) {
1808 if (brcms_firmwares[i] == NULL)
1810 sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
1811 UCODE_LOADER_API_VER);
1812 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1814 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1815 KBUILD_MODNAME, fw_name);
1818 sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
1819 UCODE_LOADER_API_VER);
1820 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1822 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1823 KBUILD_MODNAME, fw_name);
1826 wl->fw.hdr_num_entries[i] =
1827 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
1830 return brcms_ucode_data_init(wl);
1834 * precondition: can both be called locked and unlocked
1836 void brcms_ucode_free_buf(void *p)
1842 * Precondition: Since this function is called in brcms_pci_probe() context,
1843 * no locking is required.
1845 static void brcms_release_fw(struct brcms_info *wl)
1848 for (i = 0; i < MAX_FW_IMAGES; i++) {
1849 release_firmware(wl->fw.fw_bin[i]);
1850 release_firmware(wl->fw.fw_hdr[i]);
1856 * checks validity of all firmware images loaded from user space
1858 * Precondition: Since this function is called in brcms_pci_probe() context,
1859 * no locking is required.
1861 int brcms_check_firmwares(struct brcms_info *wl)
1866 const struct firmware *fw;
1867 const struct firmware *fw_hdr;
1868 struct firmware_hdr *ucode_hdr;
1869 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1870 fw = wl->fw.fw_bin[i];
1871 fw_hdr = wl->fw.fw_hdr[i];
1872 if (fw == NULL && fw_hdr == NULL) {
1874 } else if (fw == NULL || fw_hdr == NULL) {
1875 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1878 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1879 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1880 "size %zu/%zu\n", __func__, fw_hdr->size,
1881 sizeof(struct firmware_hdr));
1883 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1884 wiphy_err(wl->wiphy, "%s: out of bounds fw file size "
1885 "%zu\n", __func__, fw->size);
1888 /* check if ucode section overruns firmware image */
1889 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1890 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1891 !rc; entry++, ucode_hdr++) {
1892 if (ucode_hdr->offset + ucode_hdr->len >
1894 wiphy_err(wl->wiphy,
1895 "%s: conflicting bin/hdr\n",
1902 if (rc == 0 && wl->fw.fw_cnt != i) {
1903 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1911 * precondition: perimeter lock has been acquired
1913 bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1915 bool blocked = brcms_c_check_radio_disabled(wl->wlc);
1918 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1920 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1926 * precondition: perimeter lock has been acquired
1928 void brcms_msleep(struct brcms_info *wl, uint ms)