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"
40 #include "ucode_loader.h"
41 #include "mac80211_if.h"
43 #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
45 #define LOCK(wl) spin_lock_bh(&(wl)->lock)
46 #define UNLOCK(wl) spin_unlock_bh(&(wl)->lock)
48 /* locking from inside brcms_isr */
49 #define ISR_LOCK(wl, flags)\
51 spin_lock(&(wl)->isr_lock);\
55 #define ISR_UNLOCK(wl, flags)\
57 spin_unlock(&(wl)->isr_lock);\
61 /* locking under LOCK() to synchronize with brcms_isr */
62 #define INT_LOCK(wl, flags) spin_lock_irqsave(&(wl)->isr_lock, flags)
63 #define INT_UNLOCK(wl, flags) spin_unlock_irqrestore(&(wl)->isr_lock, flags)
65 static void brcms_timer(unsigned long data);
66 static void _brcms_timer(struct brcms_timer *t);
69 static int ieee_hw_init(struct ieee80211_hw *hw);
70 static int ieee_hw_rate_init(struct ieee80211_hw *hw);
72 static int wl_linux_watchdog(void *ctx);
74 /* Flags we support */
75 #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
81 FIF_BCN_PRBRESP_PROMISC)
83 static int n_adapters_found;
85 static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev);
86 static void brcms_release_fw(struct brcms_info *wl);
88 /* local prototypes */
89 static void brcms_dpc(unsigned long data);
90 static irqreturn_t brcms_isr(int irq, void *dev_id);
92 static int __devinit brcms_pci_probe(struct pci_dev *pdev,
93 const struct pci_device_id *ent);
94 static void brcms_remove(struct pci_dev *pdev);
95 static void brcms_free(struct brcms_info *wl);
96 static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br);
98 MODULE_AUTHOR("Broadcom Corporation");
99 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
100 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
101 MODULE_LICENSE("Dual BSD/GPL");
103 /* recognized PCI IDs */
104 static DEFINE_PCI_DEVICE_TABLE(brcms_pci_id_table) = {
105 {PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43225 2G */
106 {PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43224 DUAL */
107 {PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 4313 DUAL */
109 {PCI_VENDOR_ID_BROADCOM, 0x0576, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
113 MODULE_DEVICE_TABLE(pci, brcms_pci_id_table);
116 static int msglevel = 0xdeadbeef;
117 module_param(msglevel, int, 0);
118 static int phymsglevel = 0xdeadbeef;
119 module_param(phymsglevel, int, 0);
122 #define HW_TO_WL(hw) (hw->priv)
123 #define WL_TO_HW(wl) (wl->pub->ieee_hw)
125 /* MAC80211 callback functions */
126 static int brcms_ops_start(struct ieee80211_hw *hw);
127 static void brcms_ops_stop(struct ieee80211_hw *hw);
128 static int brcms_ops_add_interface(struct ieee80211_hw *hw,
129 struct ieee80211_vif *vif);
130 static void brcms_ops_remove_interface(struct ieee80211_hw *hw,
131 struct ieee80211_vif *vif);
132 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed);
133 static void brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
134 struct ieee80211_vif *vif,
135 struct ieee80211_bss_conf *info,
137 static void brcms_ops_configure_filter(struct ieee80211_hw *hw,
138 unsigned int changed_flags,
139 unsigned int *total_flags, u64 multicast);
140 static int brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
142 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw);
143 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw);
144 static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
145 static int brcms_ops_get_stats(struct ieee80211_hw *hw,
146 struct ieee80211_low_level_stats *stats);
147 static void brcms_ops_sta_notify(struct ieee80211_hw *hw,
148 struct ieee80211_vif *vif,
149 enum sta_notify_cmd cmd,
150 struct ieee80211_sta *sta);
151 static int brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
152 const struct ieee80211_tx_queue_params *params);
153 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw);
154 static int brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
155 struct ieee80211_sta *sta);
156 static int brcms_ops_sta_remove(struct ieee80211_hw *hw,
157 struct ieee80211_vif *vif,
158 struct ieee80211_sta *sta);
159 static int brcms_ops_ampdu_action(struct ieee80211_hw *hw,
160 struct ieee80211_vif *vif,
161 enum ieee80211_ampdu_mlme_action action,
162 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
164 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw);
165 static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop);
167 static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
169 struct brcms_info *wl = hw->priv;
173 wiphy_err(wl->wiphy, "ops->tx called while down\n");
177 wlc_sendpkt_mac80211(wl->wlc, skb, hw);
182 static int brcms_ops_start(struct ieee80211_hw *hw)
184 struct brcms_info *wl = hw->priv;
187 struct ieee80211_channel *curchan = hw->conf.channel;
190 ieee80211_wake_queues(hw);
192 blocked = brcms_rfkill_set_hw_state(wl);
195 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
200 static void brcms_ops_stop(struct ieee80211_hw *hw)
202 ieee80211_stop_queues(hw);
206 brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
208 struct brcms_info *wl;
211 /* Just STA for now */
212 if (vif->type != NL80211_IFTYPE_AP &&
213 vif->type != NL80211_IFTYPE_MESH_POINT &&
214 vif->type != NL80211_IFTYPE_STATION &&
215 vif->type != NL80211_IFTYPE_WDS &&
216 vif->type != NL80211_IFTYPE_ADHOC) {
217 wiphy_err(hw->wiphy, "%s: Attempt to add type %d, only"
218 " STA for now\n", __func__, vif->type);
228 wiphy_err(hw->wiphy, "%s: brcms_up() returned %d\n", __func__,
235 brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
237 struct brcms_info *wl;
241 /* put driver in down state */
248 * precondition: perimeter lock has been acquired
251 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
252 enum nl80211_channel_type type)
254 struct brcms_info *wl = HW_TO_WL(hw);
258 case NL80211_CHAN_HT20:
259 case NL80211_CHAN_NO_HT:
260 err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
262 case NL80211_CHAN_HT40MINUS:
263 case NL80211_CHAN_HT40PLUS:
265 "%s: Need to implement 40 Mhz Channels!\n", __func__);
275 static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
277 struct ieee80211_conf *conf = &hw->conf;
278 struct brcms_info *wl = HW_TO_WL(hw);
281 struct wiphy *wiphy = hw->wiphy;
284 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
285 if (wlc_set_par(wl->wlc, IOV_BCN_LI_BCN, conf->listen_interval)
287 wiphy_err(wiphy, "%s: Error setting listen_interval\n",
292 wlc_get_par(wl->wlc, IOV_BCN_LI_BCN, &new_int);
294 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
295 wiphy_err(wiphy, "%s: change monitor mode: %s (implement)\n",
296 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
298 if (changed & IEEE80211_CONF_CHANGE_PS)
299 wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n",
300 __func__, conf->flags & IEEE80211_CONF_PS ?
303 if (changed & IEEE80211_CONF_CHANGE_POWER) {
304 if (wlc_set_par(wl->wlc, IOV_QTXPOWER, conf->power_level * 4)
306 wiphy_err(wiphy, "%s: Error setting power_level\n",
311 wlc_get_par(wl->wlc, IOV_QTXPOWER, &new_int);
312 if (new_int != (conf->power_level * 4))
313 wiphy_err(wiphy, "%s: Power level req != actual, %d %d"
314 "\n", __func__, conf->power_level * 4,
317 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
318 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
320 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
322 (wl->wlc, WLC_SET_SRL,
323 conf->short_frame_max_tx_count) < 0) {
324 wiphy_err(wiphy, "%s: Error setting srl\n", __func__);
328 if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
330 wiphy_err(wiphy, "%s: Error setting lrl\n", __func__);
342 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
343 struct ieee80211_vif *vif,
344 struct ieee80211_bss_conf *info, u32 changed)
346 struct brcms_info *wl = HW_TO_WL(hw);
347 struct wiphy *wiphy = hw->wiphy;
350 if (changed & BSS_CHANGED_ASSOC) {
351 /* association status changed (associated/disassociated)
352 * also implies a change in the AID.
354 wiphy_err(wiphy, "%s: %s: %sassociated\n", KBUILD_MODNAME,
355 __func__, info->assoc ? "" : "dis");
357 wlc_associate_upd(wl->wlc, info->assoc);
360 if (changed & BSS_CHANGED_ERP_SLOT) {
361 /* slot timing changed */
362 if (info->use_short_slot)
367 wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
371 if (changed & BSS_CHANGED_HT) {
372 /* 802.11n parameters changed */
373 u16 mode = info->ht_operation_mode;
376 wlc_protection_upd(wl->wlc, WLC_PROT_N_CFG,
377 mode & IEEE80211_HT_OP_MODE_PROTECTION);
378 wlc_protection_upd(wl->wlc, WLC_PROT_N_NONGF,
379 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
380 wlc_protection_upd(wl->wlc, WLC_PROT_N_OBSS,
381 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
384 if (changed & BSS_CHANGED_BASIC_RATES) {
385 struct ieee80211_supported_band *bi;
388 struct wl_rateset rs;
391 /* retrieve the current rates */
393 error = wlc_ioctl(wl->wlc, WLC_GET_CURR_RATESET,
394 &rs, sizeof(rs), NULL);
397 wiphy_err(wiphy, "%s: retrieve rateset failed: %d\n",
401 br_mask = info->basic_rates;
402 bi = hw->wiphy->bands[wlc_get_curband(wl->wlc)];
403 for (i = 0; i < bi->n_bitrates; i++) {
404 /* convert to internal rate value */
405 rate = (bi->bitrates[i].bitrate << 1) / 10;
407 /* set/clear basic rate flag */
408 brcms_set_basic_rate(&rs, rate, br_mask & 1);
412 /* update the rate set */
414 wlc_ioctl(wl->wlc, WLC_SET_RATESET, &rs, sizeof(rs), NULL);
417 if (changed & BSS_CHANGED_BEACON_INT) {
418 /* Beacon interval changed */
420 wlc_set(wl->wlc, WLC_SET_BCNPRD, info->beacon_int);
423 if (changed & BSS_CHANGED_BSSID) {
424 /* BSSID changed, for whatever reason (IBSS and managed mode) */
426 wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
430 if (changed & BSS_CHANGED_BEACON) {
431 /* Beacon data changed, retrieve new beacon (beaconing modes) */
432 wiphy_err(wiphy, "%s: beacon changed\n", __func__);
434 if (changed & BSS_CHANGED_BEACON_ENABLED) {
435 /* Beaconing should be enabled/disabled (beaconing modes) */
436 wiphy_err(wiphy, "%s: Beacon enabled: %s\n", __func__,
437 info->enable_beacon ? "true" : "false");
439 if (changed & BSS_CHANGED_CQM) {
440 /* Connection quality monitor config changed */
441 wiphy_err(wiphy, "%s: cqm change: threshold %d, hys %d "
442 " (implement)\n", __func__, info->cqm_rssi_thold,
443 info->cqm_rssi_hyst);
445 if (changed & BSS_CHANGED_IBSS) {
446 /* IBSS join status changed */
447 wiphy_err(wiphy, "%s: IBSS joined: %s (implement)\n", __func__,
448 info->ibss_joined ? "true" : "false");
450 if (changed & BSS_CHANGED_ARP_FILTER) {
451 /* Hardware ARP filter address list or state changed */
452 wiphy_err(wiphy, "%s: arp filtering: enabled %s, count %d"
453 " (implement)\n", __func__, info->arp_filter_enabled ?
454 "true" : "false", info->arp_addr_cnt);
456 if (changed & BSS_CHANGED_QOS) {
458 * QoS for this association was enabled/disabled.
459 * Note that it is only ever disabled for station mode.
461 wiphy_err(wiphy, "%s: qos enabled: %s (implement)\n", __func__,
462 info->qos ? "true" : "false");
464 if (changed & BSS_CHANGED_IDLE) {
465 /* Idle changed for this BSS/interface */
466 wiphy_err(wiphy, "%s: BSS idle: %s (implement)\n", __func__,
467 info->idle ? "true" : "false");
473 brcms_ops_configure_filter(struct ieee80211_hw *hw,
474 unsigned int changed_flags,
475 unsigned int *total_flags, u64 multicast)
477 struct brcms_info *wl = hw->priv;
478 struct wiphy *wiphy = hw->wiphy;
480 changed_flags &= MAC_FILTERS;
481 *total_flags &= MAC_FILTERS;
482 if (changed_flags & FIF_PROMISC_IN_BSS)
483 wiphy_err(wiphy, "FIF_PROMISC_IN_BSS\n");
484 if (changed_flags & FIF_ALLMULTI)
485 wiphy_err(wiphy, "FIF_ALLMULTI\n");
486 if (changed_flags & FIF_FCSFAIL)
487 wiphy_err(wiphy, "FIF_FCSFAIL\n");
488 if (changed_flags & FIF_PLCPFAIL)
489 wiphy_err(wiphy, "FIF_PLCPFAIL\n");
490 if (changed_flags & FIF_CONTROL)
491 wiphy_err(wiphy, "FIF_CONTROL\n");
492 if (changed_flags & FIF_OTHER_BSS)
493 wiphy_err(wiphy, "FIF_OTHER_BSS\n");
494 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
496 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
497 wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
498 wlc_mac_bcn_promisc_change(wl->wlc, 1);
500 wlc_mac_bcn_promisc_change(wl->wlc, 0);
501 wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
509 brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
514 static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw)
516 struct brcms_info *wl = hw->priv;
518 wlc_scan_start(wl->wlc);
523 static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw)
525 struct brcms_info *wl = hw->priv;
527 wlc_scan_stop(wl->wlc);
532 static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
534 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
539 brcms_ops_get_stats(struct ieee80211_hw *hw,
540 struct ieee80211_low_level_stats *stats)
542 struct brcms_info *wl = hw->priv;
547 stats->dot11ACKFailureCount = 0;
548 stats->dot11RTSFailureCount = 0;
549 stats->dot11FCSErrorCount = 0;
550 stats->dot11RTSSuccessCount = 0;
556 brcms_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
557 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
561 wiphy_err(hw->wiphy, "%s: Unknown cmd = %d\n", __func__,
569 brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
570 const struct ieee80211_tx_queue_params *params)
572 struct brcms_info *wl = hw->priv;
575 wlc_wme_setparams(wl->wlc, queue, params, true);
581 static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw)
583 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
588 brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
589 struct ieee80211_sta *sta)
594 struct brcms_info *wl = hw->priv;
597 scb = (struct scb *)sta->drv_priv;
598 memset(scb, 0, sizeof(struct scb));
599 for (i = 0; i < NUMPRIO; i++)
600 scb->seqctl[i] = 0xFFFF;
601 scb->seqctl_nonqos = 0xFFFF;
602 scb->magic = SCB_MAGIC;
604 wl->pub->global_scb = scb;
605 wl->pub->global_ampdu = &(scb->scb_ampdu);
606 wl->pub->global_ampdu->scb = scb;
607 wl->pub->global_ampdu->max_pdu = 16;
608 brcmu_pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
609 AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
611 sta->ht_cap.ht_supported = true;
612 sta->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
613 sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
614 sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
615 IEEE80211_HT_CAP_SGI_20 |
616 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
618 /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
623 brcms_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
624 struct ieee80211_sta *sta)
630 brcms_ops_ampdu_action(struct ieee80211_hw *hw,
631 struct ieee80211_vif *vif,
632 enum ieee80211_ampdu_mlme_action action,
633 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
636 struct scb *scb = (struct scb *)sta->drv_priv;
637 struct brcms_info *wl = hw->priv;
640 if (WARN_ON(scb->magic != SCB_MAGIC))
643 case IEEE80211_AMPDU_RX_START:
645 case IEEE80211_AMPDU_RX_STOP:
647 case IEEE80211_AMPDU_TX_START:
649 status = wlc_aggregatable(wl->wlc, tid);
652 wiphy_err(wl->wiphy, "START: tid %d is not agg\'able\n",
656 /* XXX: Use the starting sequence number provided ... */
658 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
661 case IEEE80211_AMPDU_TX_STOP:
663 wlc_ampdu_flush(wl->wlc, sta, tid);
665 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
667 case IEEE80211_AMPDU_TX_OPERATIONAL:
668 /* Not sure what to do here */
669 /* Power save wakeup */
672 wiphy_err(wl->wiphy, "%s: Invalid command, ignoring\n",
679 static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
681 struct brcms_info *wl = HW_TO_WL(hw);
685 blocked = wlc_check_radio_disabled(wl->wlc);
688 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
691 static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop)
693 struct brcms_info *wl = HW_TO_WL(hw);
695 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
697 /* wait for packet queue and dma fifos to run empty */
699 wlc_wait_for_tx_completion(wl->wlc, drop);
703 static const struct ieee80211_ops brcms_ops = {
705 .start = brcms_ops_start,
706 .stop = brcms_ops_stop,
707 .add_interface = brcms_ops_add_interface,
708 .remove_interface = brcms_ops_remove_interface,
709 .config = brcms_ops_config,
710 .bss_info_changed = brcms_ops_bss_info_changed,
711 .configure_filter = brcms_ops_configure_filter,
712 .set_tim = brcms_ops_set_tim,
713 .sw_scan_start = brcms_ops_sw_scan_start,
714 .sw_scan_complete = brcms_ops_sw_scan_complete,
715 .set_tsf = brcms_ops_set_tsf,
716 .get_stats = brcms_ops_get_stats,
717 .sta_notify = brcms_ops_sta_notify,
718 .conf_tx = brcms_ops_conf_tx,
719 .get_tsf = brcms_ops_get_tsf,
720 .sta_add = brcms_ops_sta_add,
721 .sta_remove = brcms_ops_sta_remove,
722 .ampdu_action = brcms_ops_ampdu_action,
723 .rfkill_poll = brcms_ops_rfkill_poll,
724 .flush = brcms_ops_flush,
728 * is called in brcms_pci_probe() context, therefore no locking required.
730 static int brcms_set_hint(struct brcms_info *wl, char *abbrev)
732 return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
736 * attach to the WL device.
738 * Attach to the WL device identified by vendor and device parameters.
739 * regs is a host accessible memory address pointing to WL device registers.
741 * brcms_attach is not defined as static because in the case where no bus
742 * is defined, wl_attach will never be called, and thus, gcc will issue
743 * a warning that this function is defined but not used if we declare
747 * is called in brcms_pci_probe() context, therefore no locking required.
749 static struct brcms_info *brcms_attach(u16 vendor, u16 device,
751 uint bustype, void *btparam, uint irq)
753 struct brcms_info *wl = NULL;
755 unsigned long base_addr;
756 struct ieee80211_hw *hw;
759 unit = n_adapters_found;
766 /* allocate private info */
767 hw = pci_get_drvdata(btparam); /* btparam == pdev */
770 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
772 wl->wiphy = hw->wiphy;
774 atomic_set(&wl->callbacks, 0);
776 /* setup the bottom half handler */
777 tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
783 if (bustype == PCI_BUS || bustype == RPC_BUS) {
787 BCMMSG(wl->wiphy, "force to PCI\n");
789 wl->bcm_bustype = bustype;
791 wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
792 if (wl->regsva == NULL) {
793 wiphy_err(wl->wiphy, "wl%d: ioremap() failed\n", unit);
796 spin_lock_init(&wl->lock);
797 spin_lock_init(&wl->isr_lock);
800 if (brcms_request_fw(wl, (struct pci_dev *)btparam) < 0) {
801 wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in "
802 "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm");
803 brcms_release_fw(wl);
804 brcms_remove((struct pci_dev *)btparam);
808 /* common load-time initialization */
809 wl->wlc = wlc_attach((void *)wl, vendor, device, unit, false,
810 wl->regsva, wl->bcm_bustype, btparam, &err);
811 brcms_release_fw(wl);
813 wiphy_err(wl->wiphy, "%s: wlc_attach() failed with code %d\n",
814 KBUILD_MODNAME, err);
817 wl->pub = wlc_pub(wl->wlc);
819 wl->pub->ieee_hw = hw;
821 if (wlc_set_par(wl->wlc, IOV_MPC, 0) < 0) {
822 wiphy_err(wl->wiphy, "wl%d: Error setting MPC variable to 0\n",
826 /* register our interrupt handler */
827 if (request_irq(irq, brcms_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
828 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
833 /* register module */
834 wlc_module_register(wl->pub, "linux", wl, wl_linux_watchdog, NULL);
836 if (ieee_hw_init(hw)) {
837 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
842 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
843 if (WARN_ON(!is_valid_ether_addr(perm)))
845 SET_IEEE80211_PERM_ADDR(hw, perm);
847 err = ieee80211_register_hw(hw);
849 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
850 "%d\n", __func__, err);
853 if (wl->pub->srom_ccode[0])
854 err = brcms_set_hint(wl, wl->pub->srom_ccode);
856 err = brcms_set_hint(wl, "US");
858 wiphy_err(wl->wiphy, "%s: regulatory_hint failed, status %d\n",
872 #define CHAN2GHZ(channel, freqency, chflags) { \
873 .band = IEEE80211_BAND_2GHZ, \
874 .center_freq = (freqency), \
875 .hw_value = (channel), \
877 .max_antenna_gain = 0, \
881 static struct ieee80211_channel brcms_2ghz_chantable[] = {
882 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
883 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
884 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
885 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
886 CHAN2GHZ(5, 2432, 0),
887 CHAN2GHZ(6, 2437, 0),
888 CHAN2GHZ(7, 2442, 0),
889 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
890 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
891 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
892 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
894 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
895 IEEE80211_CHAN_NO_HT40PLUS),
897 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
898 IEEE80211_CHAN_NO_HT40PLUS),
900 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
901 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
904 #define CHAN5GHZ(channel, chflags) { \
905 .band = IEEE80211_BAND_5GHZ, \
906 .center_freq = 5000 + 5*(channel), \
907 .hw_value = (channel), \
909 .max_antenna_gain = 0, \
913 static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
915 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
916 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
917 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
918 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
921 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
922 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
924 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
925 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
927 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
928 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
930 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
931 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
934 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
935 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
937 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
938 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
940 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
941 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
943 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
944 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
946 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
947 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
949 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
950 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
952 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
953 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
955 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
956 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
958 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
959 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
961 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
962 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
964 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
965 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
966 IEEE80211_CHAN_NO_HT40MINUS),
968 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
969 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
970 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
971 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
972 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
975 #define RATE(rate100m, _flags) { \
976 .bitrate = (rate100m), \
978 .hw_value = (rate100m / 5), \
981 static struct ieee80211_rate legacy_ratetable[] = {
983 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
984 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
985 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
996 static struct ieee80211_supported_band brcms_band_2GHz_nphy = {
997 .band = IEEE80211_BAND_2GHZ,
998 .channels = brcms_2ghz_chantable,
999 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
1000 .bitrates = legacy_ratetable,
1001 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
1003 /* from include/linux/ieee80211.h */
1004 .cap = IEEE80211_HT_CAP_GRN_FLD |
1005 IEEE80211_HT_CAP_SGI_20 |
1006 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
1007 .ht_supported = true,
1008 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1009 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1011 /* placeholders for now */
1012 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1014 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1018 static struct ieee80211_supported_band brcms_band_5GHz_nphy = {
1019 .band = IEEE80211_BAND_5GHZ,
1020 .channels = brcms_5ghz_nphy_chantable,
1021 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
1022 .bitrates = legacy_ratetable + 4,
1023 .n_bitrates = ARRAY_SIZE(legacy_ratetable) - 4,
1025 /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
1026 .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 */
1027 .ht_supported = true,
1028 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1029 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1031 /* placeholders for now */
1032 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1034 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1039 * is called in brcms_pci_probe() context, therefore no locking required.
1041 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1043 struct brcms_info *wl = HW_TO_WL(hw);
1049 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
1050 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1052 if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
1053 wiphy_err(hw->wiphy, "Phy list failed\n");
1056 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1057 if (phy_list[0] == 'c') {
1059 brcms_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
1060 brcms_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
1062 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &brcms_band_2GHz_nphy;
1067 /* Assume all bands use the same phy. True for 11n devices. */
1068 if (NBANDS_PUB(wl->pub) > 1) {
1070 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1071 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1072 &brcms_band_5GHz_nphy;
1081 * is called in brcms_pci_probe() context, therefore no locking required.
1083 static int ieee_hw_init(struct ieee80211_hw *hw)
1085 hw->flags = IEEE80211_HW_SIGNAL_DBM
1086 /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
1087 | IEEE80211_HW_REPORTS_TX_ACK_STATUS
1088 | IEEE80211_HW_AMPDU_AGGREGATION;
1090 hw->extra_tx_headroom = wlc_get_header_len();
1091 hw->queues = N_TX_QUEUES;
1092 /* FIXME: this doesn't seem to be used properly in minstrel_ht.
1093 * mac80211/status.c:ieee80211_tx_status() checks this value,
1094 * but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1095 * appears to always set 3 rates
1097 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1099 hw->channel_change_time = 7 * 1000; /* channel change time is dependent on chip and band */
1100 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1102 hw->rate_control_algorithm = "minstrel_ht";
1104 hw->sta_data_size = sizeof(struct scb);
1105 return ieee_hw_rate_init(hw);
1109 * determines if a device is a WL device, and if so, attaches it.
1111 * This function determines if a device pointed to by pdev is a WL device,
1112 * and if so, performs a brcms_attach() on it.
1114 * Perimeter lock is initialized in the course of this function.
1116 static int __devinit
1117 brcms_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1120 struct brcms_info *wl;
1121 struct ieee80211_hw *hw;
1124 dev_info(&pdev->dev, "bus %d slot %d func %d irq %d\n",
1125 pdev->bus->number, PCI_SLOT(pdev->devfn),
1126 PCI_FUNC(pdev->devfn), pdev->irq);
1128 if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1129 ((pdev->device != 0x0576) &&
1130 ((pdev->device & 0xff00) != 0x4300) &&
1131 ((pdev->device & 0xff00) != 0x4700) &&
1132 ((pdev->device < 43000) || (pdev->device > 43999))))
1135 rc = pci_enable_device(pdev);
1137 pr_err("%s: Cannot enable device %d-%d_%d\n",
1138 __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1139 PCI_FUNC(pdev->devfn));
1142 pci_set_master(pdev);
1144 pci_read_config_dword(pdev, 0x40, &val);
1145 if ((val & 0x0000ff00) != 0)
1146 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1148 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1150 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1154 SET_IEEE80211_DEV(hw, &pdev->dev);
1156 pci_set_drvdata(pdev, hw);
1158 memset(hw->priv, 0, sizeof(*wl));
1160 wl = brcms_attach(pdev->vendor, pdev->device,
1161 pci_resource_start(pdev, 0), PCI_BUS, pdev,
1165 pr_err("%s: %s: brcms_attach failed!\n", KBUILD_MODNAME,
1172 static int brcms_suspend(struct pci_dev *pdev, pm_message_t state)
1174 struct brcms_info *wl;
1175 struct ieee80211_hw *hw;
1177 hw = pci_get_drvdata(pdev);
1180 wiphy_err(wl->wiphy,
1181 "brcms_suspend: pci_get_drvdata failed\n");
1185 /* only need to flag hw is down for proper resume */
1187 wl->pub->hw_up = false;
1190 pci_save_state(pdev);
1191 pci_disable_device(pdev);
1192 return pci_set_power_state(pdev, PCI_D3hot);
1195 static int brcms_resume(struct pci_dev *pdev)
1197 struct brcms_info *wl;
1198 struct ieee80211_hw *hw;
1202 hw = pci_get_drvdata(pdev);
1205 wiphy_err(wl->wiphy,
1206 "wl: brcms_resume: pci_get_drvdata failed\n");
1210 err = pci_set_power_state(pdev, PCI_D0);
1214 pci_restore_state(pdev);
1216 err = pci_enable_device(pdev);
1220 pci_set_master(pdev);
1222 pci_read_config_dword(pdev, 0x40, &val);
1223 if ((val & 0x0000ff00) != 0)
1224 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1227 * done. driver will be put in up state
1228 * in brcms_ops_add_interface() call.
1234 * called from both kernel as from this kernel module.
1235 * precondition: perimeter lock is not acquired.
1237 static void brcms_remove(struct pci_dev *pdev)
1239 struct brcms_info *wl;
1240 struct ieee80211_hw *hw;
1243 hw = pci_get_drvdata(pdev);
1246 pr_err("wl: brcms_remove: pci_get_drvdata failed\n");
1251 status = wlc_chipmatch(pdev->vendor, pdev->device);
1254 wiphy_err(wl->wiphy, "wl: brcms_remove: wlc_chipmatch "
1259 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1260 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1261 ieee80211_unregister_hw(hw);
1266 pci_disable_device(pdev);
1270 pci_set_drvdata(pdev, NULL);
1271 ieee80211_free_hw(hw);
1274 static struct pci_driver brcms_pci_driver = {
1275 .name = KBUILD_MODNAME,
1276 .probe = brcms_pci_probe,
1277 .suspend = brcms_suspend,
1278 .resume = brcms_resume,
1279 .remove = __devexit_p(brcms_remove),
1280 .id_table = brcms_pci_id_table,
1284 * This is the main entry point for the WL driver.
1286 * This function determines if a device pointed to by pdev is a WL device,
1287 * and if so, performs a brcms_attach() on it.
1290 static int __init brcms_module_init(void)
1292 int error = -ENODEV;
1295 if (msglevel != 0xdeadbeef)
1296 brcm_msg_level = msglevel;
1297 if (phymsglevel != 0xdeadbeef)
1298 phyhal_msg_level = phymsglevel;
1301 error = pci_register_driver(&brcms_pci_driver);
1311 * This function unloads the WL driver from the system.
1313 * This function unconditionally unloads the WL driver module from the
1317 static void __exit brcms_module_exit(void)
1319 pci_unregister_driver(&brcms_pci_driver);
1323 module_init(brcms_module_init);
1324 module_exit(brcms_module_exit);
1327 * This function frees the WL per-device resources.
1329 * This function frees resources owned by the WL device pointed to
1330 * by the wl parameter.
1332 * precondition: can both be called locked and unlocked
1335 static void brcms_free(struct brcms_info *wl)
1337 struct brcms_timer *t, *next;
1339 /* free ucode data */
1341 brcms_ucode_data_free();
1343 free_irq(wl->irq, wl);
1346 tasklet_kill(&wl->tasklet);
1349 wlc_module_unregister(wl->pub, "linux", wl);
1352 /* free common resources */
1354 wlc_detach(wl->wlc);
1359 /* virtual interface deletion is deferred so we cannot spinwait */
1361 /* wait for all pending callbacks to complete */
1362 while (atomic_read(&wl->callbacks) > 0)
1366 for (t = wl->timers; t; t = next) {
1375 * unregister_netdev() calls get_stats() which may read chip registers
1376 * so we cannot unmap the chip registers until after calling unregister_netdev() .
1378 if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1379 wl->bcm_bustype != JTAG_BUS) {
1380 iounmap((void *)wl->regsva);
1385 /* flags the given rate in rateset as requested */
1386 static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br)
1390 for (i = 0; i < rs->count; i++) {
1391 if (rate != (rs->rates[i] & 0x7f))
1395 rs->rates[i] |= WLC_RATE_FLAG;
1397 rs->rates[i] &= WLC_RATE_MASK;
1403 * precondition: perimeter lock has been acquired
1405 void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1406 bool state, int prio)
1408 wiphy_err(wl->wiphy, "Shouldn't be here %s\n", __func__);
1412 * precondition: perimeter lock has been acquired
1414 void brcms_init(struct brcms_info *wl)
1416 BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
1423 * precondition: perimeter lock has been acquired
1425 uint brcms_reset(struct brcms_info *wl)
1427 BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
1430 /* dpc will not be rescheduled */
1437 * These are interrupt on/off entry points. Disable interrupts
1438 * during interrupt state transition.
1440 void brcms_intrson(struct brcms_info *wl)
1442 unsigned long flags;
1444 INT_LOCK(wl, flags);
1445 wlc_intrson(wl->wlc);
1446 INT_UNLOCK(wl, flags);
1450 * precondition: perimeter lock has been acquired
1452 bool wl_alloc_dma_resources(struct brcms_info *wl, uint addrwidth)
1457 u32 brcms_intrsoff(struct brcms_info *wl)
1459 unsigned long flags;
1462 INT_LOCK(wl, flags);
1463 status = wlc_intrsoff(wl->wlc);
1464 INT_UNLOCK(wl, flags);
1468 void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1470 unsigned long flags;
1472 INT_LOCK(wl, flags);
1473 wlc_intrsrestore(wl->wlc, macintmask);
1474 INT_UNLOCK(wl, flags);
1478 * precondition: perimeter lock has been acquired
1480 int brcms_up(struct brcms_info *wl)
1487 error = wlc_up(wl->wlc);
1493 * precondition: perimeter lock has been acquired
1495 void brcms_down(struct brcms_info *wl)
1497 uint callbacks, ret_val = 0;
1499 /* call common down function */
1500 ret_val = wlc_down(wl->wlc);
1501 callbacks = atomic_read(&wl->callbacks) - ret_val;
1503 /* wait for down callbacks to complete */
1506 /* For HIGH_only driver, it's important to actually schedule other work,
1507 * not just spin wait since everything runs at schedule level
1509 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1514 static irqreturn_t brcms_isr(int irq, void *dev_id)
1516 struct brcms_info *wl;
1518 unsigned long flags;
1520 wl = (struct brcms_info *) dev_id;
1522 ISR_LOCK(wl, flags);
1524 /* call common first level interrupt handler */
1525 ours = wlc_isr(wl->wlc, &wantdpc);
1527 /* if more to do... */
1530 /* ...and call the second level interrupt handler */
1532 tasklet_schedule(&wl->tasklet);
1536 ISR_UNLOCK(wl, flags);
1538 return IRQ_RETVAL(ours);
1541 static void brcms_dpc(unsigned long data)
1543 struct brcms_info *wl;
1545 wl = (struct brcms_info *) data;
1549 /* call the common second level interrupt handler */
1552 unsigned long flags;
1554 INT_LOCK(wl, flags);
1555 wlc_intrsupd(wl->wlc);
1556 INT_UNLOCK(wl, flags);
1559 wl->resched = wlc_dpc(wl->wlc, true);
1562 /* wlc_dpc() may bring the driver down */
1566 /* re-schedule dpc */
1568 tasklet_schedule(&wl->tasklet);
1570 /* re-enable interrupts */
1579 * is called by the kernel from software irq context
1581 static void brcms_timer(unsigned long data)
1583 _brcms_timer((struct brcms_timer *) data);
1587 * precondition: perimeter lock is not acquired
1589 static void _brcms_timer(struct brcms_timer *t)
1595 t->timer.expires = jiffies + t->ms * HZ / 1000;
1596 atomic_inc(&t->wl->callbacks);
1597 add_timer(&t->timer);
1605 atomic_dec(&t->wl->callbacks);
1611 * Adds a timer to the list. Caller supplies a timer function.
1612 * Is called from wlc.
1614 * precondition: perimeter lock has been acquired
1616 struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1617 void (*fn) (void *arg),
1618 void *arg, const char *name)
1620 struct brcms_timer *t;
1622 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1624 wiphy_err(wl->wiphy, "wl%d: brcms_init_timer: out of memory\n",
1629 init_timer(&t->timer);
1630 t->timer.data = (unsigned long) t;
1631 t->timer.function = brcms_timer;
1635 t->next = wl->timers;
1639 t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1641 strcpy(t->name, name);
1647 /* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1648 * as well as it's easier to make it periodic
1650 * precondition: perimeter lock has been acquired
1652 void brcms_add_timer(struct brcms_info *wl, struct brcms_timer *t, uint ms,
1657 wiphy_err(wl->wiphy, "%s: Already set. Name: %s, per %d\n",
1658 __func__, t->name, periodic);
1662 t->periodic = (bool) periodic;
1664 t->timer.expires = jiffies + ms * HZ / 1000;
1666 atomic_inc(&wl->callbacks);
1667 add_timer(&t->timer);
1671 * return true if timer successfully deleted, false if still pending
1673 * precondition: perimeter lock has been acquired
1675 bool brcms_del_timer(struct brcms_info *wl, struct brcms_timer *t)
1679 if (!del_timer(&t->timer)) {
1682 atomic_dec(&wl->callbacks);
1689 * precondition: perimeter lock has been acquired
1691 void brcms_free_timer(struct brcms_info *wl, struct brcms_timer *t)
1693 struct brcms_timer *tmp;
1695 /* delete the timer in case it is active */
1696 brcms_del_timer(wl, t);
1698 if (wl->timers == t) {
1699 wl->timers = wl->timers->next;
1710 if (tmp->next == t) {
1711 tmp->next = t->next;
1724 * runs in software irq context
1726 * precondition: perimeter lock is not acquired
1728 static int wl_linux_watchdog(void *ctx)
1733 struct firmware_hdr {
1739 char *brcms_firmwares[MAX_FW_IMAGES] = {
1745 * precondition: perimeter lock has been acquired
1747 int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1751 struct firmware_hdr *hdr;
1752 for (i = 0; i < wl->fw.fw_cnt; i++) {
1753 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1754 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1756 if (hdr->idx == idx) {
1757 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1758 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1759 if (*pbuf == NULL) {
1760 wiphy_err(wl->wiphy, "fail to alloc %d"
1761 " bytes\n", hdr->len);
1764 memcpy(*pbuf, pdata, hdr->len);
1769 wiphy_err(wl->wiphy, "ERROR: ucode buf tag:%d can not be found!\n",
1777 * Precondition: Since this function is called in brcms_pci_probe() context,
1778 * no locking is required.
1780 int brcms_ucode_init_uint(struct brcms_info *wl, u32 *data, u32 idx)
1784 struct firmware_hdr *hdr;
1785 for (i = 0; i < wl->fw.fw_cnt; i++) {
1786 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1787 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1789 if (hdr->idx == idx) {
1790 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1791 if (hdr->len != 4) {
1792 wiphy_err(wl->wiphy,
1793 "ERROR: fw hdr len\n");
1796 *data = *((u32 *) pdata);
1801 wiphy_err(wl->wiphy, "ERROR: ucode tag:%d can not be found!\n", idx);
1806 * Precondition: Since this function is called in brcms_pci_probe() context,
1807 * no locking is required.
1809 static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev)
1812 struct device *device = &pdev->dev;
1816 memset((void *)&wl->fw, 0, sizeof(struct brcms_firmware));
1817 for (i = 0; i < MAX_FW_IMAGES; i++) {
1818 if (brcms_firmwares[i] == NULL)
1820 sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
1821 UCODE_LOADER_API_VER);
1822 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1824 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1825 KBUILD_MODNAME, fw_name);
1828 sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
1829 UCODE_LOADER_API_VER);
1830 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1832 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1833 KBUILD_MODNAME, fw_name);
1836 wl->fw.hdr_num_entries[i] =
1837 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
1840 return brcms_ucode_data_init(wl);
1844 * precondition: can both be called locked and unlocked
1846 void brcms_ucode_free_buf(void *p)
1852 * Precondition: Since this function is called in brcms_pci_probe() context,
1853 * no locking is required.
1855 static void brcms_release_fw(struct brcms_info *wl)
1858 for (i = 0; i < MAX_FW_IMAGES; i++) {
1859 release_firmware(wl->fw.fw_bin[i]);
1860 release_firmware(wl->fw.fw_hdr[i]);
1866 * checks validity of all firmware images loaded from user space
1868 * Precondition: Since this function is called in brcms_pci_probe() context,
1869 * no locking is required.
1871 int brcms_check_firmwares(struct brcms_info *wl)
1876 const struct firmware *fw;
1877 const struct firmware *fw_hdr;
1878 struct firmware_hdr *ucode_hdr;
1879 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1880 fw = wl->fw.fw_bin[i];
1881 fw_hdr = wl->fw.fw_hdr[i];
1882 if (fw == NULL && fw_hdr == NULL) {
1884 } else if (fw == NULL || fw_hdr == NULL) {
1885 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1888 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1889 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1890 "size %zu/%zu\n", __func__, fw_hdr->size,
1891 sizeof(struct firmware_hdr));
1893 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1894 wiphy_err(wl->wiphy, "%s: out of bounds fw file size "
1895 "%zu\n", __func__, fw->size);
1898 /* check if ucode section overruns firmware image */
1899 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1900 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1901 !rc; entry++, ucode_hdr++) {
1902 if (ucode_hdr->offset + ucode_hdr->len >
1904 wiphy_err(wl->wiphy,
1905 "%s: conflicting bin/hdr\n",
1912 if (rc == 0 && wl->fw.fw_cnt != i) {
1913 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1921 * precondition: perimeter lock has been acquired
1923 bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1925 bool blocked = wlc_check_radio_disabled(wl->wlc);
1928 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1930 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1936 * precondition: perimeter lock has been acquired
1938 void brcms_msleep(struct brcms_info *wl, uint ms)