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 <proto/802.11.h>
37 #include "phy/wlc_phy_int.h"
39 #include "wlc_types.h"
41 #include "phy/phy_version.h"
43 #include "wlc_channel.h"
47 #include "wl_export.h"
49 #include "wl_mac80211.h"
51 #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
53 static void wl_timer(unsigned long data);
54 static void _wl_timer(struct wl_timer *t);
57 static int ieee_hw_init(struct ieee80211_hw *hw);
58 static int ieee_hw_rate_init(struct ieee80211_hw *hw);
60 static int wl_linux_watchdog(void *ctx);
62 /* Flags we support */
63 #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
69 FIF_BCN_PRBRESP_PROMISC)
73 #define WL_DEV_IF(dev) ((struct wl_if *)netdev_priv(dev))
74 #define WL_INFO(dev) ((struct wl_info *)(WL_DEV_IF(dev)->wl))
75 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev);
76 static void wl_release_fw(struct wl_info *wl);
78 /* local prototypes */
79 static void wl_dpc(unsigned long data);
80 static irqreturn_t wl_isr(int irq, void *dev_id);
82 static int __devinit wl_pci_probe(struct pci_dev *pdev,
83 const struct pci_device_id *ent);
84 static void wl_remove(struct pci_dev *pdev);
85 static void wl_free(struct wl_info *wl);
86 static void wl_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br);
88 MODULE_AUTHOR("Broadcom Corporation");
89 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
90 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
91 MODULE_LICENSE("Dual BSD/GPL");
93 /* recognized PCI IDs */
94 static struct pci_device_id wl_id_table[] = {
95 {PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43225 2G */
96 {PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43224 DUAL */
97 {PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 4313 DUAL */
101 MODULE_DEVICE_TABLE(pci, wl_id_table);
104 static int msglevel = 0xdeadbeef;
105 module_param(msglevel, int, 0);
106 static int phymsglevel = 0xdeadbeef;
107 module_param(phymsglevel, int, 0);
110 #define HW_TO_WL(hw) (hw->priv)
111 #define WL_TO_HW(wl) (wl->pub->ieee_hw)
113 /* MAC80211 callback functions */
114 static int wl_ops_start(struct ieee80211_hw *hw);
115 static void wl_ops_stop(struct ieee80211_hw *hw);
116 static int wl_ops_add_interface(struct ieee80211_hw *hw,
117 struct ieee80211_vif *vif);
118 static void wl_ops_remove_interface(struct ieee80211_hw *hw,
119 struct ieee80211_vif *vif);
120 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed);
121 static void wl_ops_bss_info_changed(struct ieee80211_hw *hw,
122 struct ieee80211_vif *vif,
123 struct ieee80211_bss_conf *info,
125 static void wl_ops_configure_filter(struct ieee80211_hw *hw,
126 unsigned int changed_flags,
127 unsigned int *total_flags, u64 multicast);
128 static int wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
130 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw);
131 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw);
132 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
133 static int wl_ops_get_stats(struct ieee80211_hw *hw,
134 struct ieee80211_low_level_stats *stats);
135 static void wl_ops_sta_notify(struct ieee80211_hw *hw,
136 struct ieee80211_vif *vif,
137 enum sta_notify_cmd cmd,
138 struct ieee80211_sta *sta);
139 static int wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
140 const struct ieee80211_tx_queue_params *params);
141 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw);
142 static int wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
143 struct ieee80211_sta *sta);
144 static int wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
145 struct ieee80211_sta *sta);
146 static int wl_ops_ampdu_action(struct ieee80211_hw *hw,
147 struct ieee80211_vif *vif,
148 enum ieee80211_ampdu_mlme_action action,
149 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
151 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw);
152 static void wl_ops_flush(struct ieee80211_hw *hw, bool drop);
154 static void wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
156 struct wl_info *wl = hw->priv;
160 wiphy_err(wl->wiphy, "ops->tx called while down\n");
164 wlc_sendpkt_mac80211(wl->wlc, skb, hw);
169 static int wl_ops_start(struct ieee80211_hw *hw)
171 struct wl_info *wl = hw->priv;
174 struct ieee80211_channel *curchan = hw->conf.channel;
177 ieee80211_wake_queues(hw);
179 blocked = wl_rfkill_set_hw_state(wl);
182 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
187 static void wl_ops_stop(struct ieee80211_hw *hw)
189 ieee80211_stop_queues(hw);
193 wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
198 /* Just STA for now */
199 if (vif->type != NL80211_IFTYPE_AP &&
200 vif->type != NL80211_IFTYPE_MESH_POINT &&
201 vif->type != NL80211_IFTYPE_STATION &&
202 vif->type != NL80211_IFTYPE_WDS &&
203 vif->type != NL80211_IFTYPE_ADHOC) {
204 wiphy_err(hw->wiphy, "%s: Attempt to add type %d, only"
205 " STA for now\n", __func__, vif->type);
215 wiphy_err(hw->wiphy, "%s: wl_up() returned %d\n", __func__,
222 wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
228 /* put driver in down state */
235 * precondition: perimeter lock has been acquired
238 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
239 enum nl80211_channel_type type)
241 struct wl_info *wl = HW_TO_WL(hw);
245 case NL80211_CHAN_HT20:
246 case NL80211_CHAN_NO_HT:
247 err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
249 case NL80211_CHAN_HT40MINUS:
250 case NL80211_CHAN_HT40PLUS:
252 "%s: Need to implement 40 Mhz Channels!\n", __func__);
262 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed)
264 struct ieee80211_conf *conf = &hw->conf;
265 struct wl_info *wl = HW_TO_WL(hw);
268 struct wiphy *wiphy = hw->wiphy;
271 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
272 if (wlc_set_par(wl->wlc, IOV_BCN_LI_BCN, conf->listen_interval)
274 wiphy_err(wiphy, "%s: Error setting listen_interval\n",
279 wlc_get_par(wl->wlc, IOV_BCN_LI_BCN, &new_int);
281 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
282 wiphy_err(wiphy, "%s: change monitor mode: %s (implement)\n",
283 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
285 if (changed & IEEE80211_CONF_CHANGE_PS)
286 wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n",
287 __func__, conf->flags & IEEE80211_CONF_PS ?
290 if (changed & IEEE80211_CONF_CHANGE_POWER) {
291 if (wlc_set_par(wl->wlc, IOV_QTXPOWER, conf->power_level * 4)
293 wiphy_err(wiphy, "%s: Error setting power_level\n",
298 wlc_get_par(wl->wlc, IOV_QTXPOWER, &new_int);
299 if (new_int != (conf->power_level * 4))
300 wiphy_err(wiphy, "%s: Power level req != actual, %d %d"
301 "\n", __func__, conf->power_level * 4,
304 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
305 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
307 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
309 (wl->wlc, WLC_SET_SRL,
310 conf->short_frame_max_tx_count) < 0) {
311 wiphy_err(wiphy, "%s: Error setting srl\n", __func__);
315 if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
317 wiphy_err(wiphy, "%s: Error setting lrl\n", __func__);
329 wl_ops_bss_info_changed(struct ieee80211_hw *hw,
330 struct ieee80211_vif *vif,
331 struct ieee80211_bss_conf *info, u32 changed)
333 struct wl_info *wl = HW_TO_WL(hw);
334 struct wiphy *wiphy = hw->wiphy;
337 if (changed & BSS_CHANGED_ASSOC) {
338 /* association status changed (associated/disassociated)
339 * also implies a change in the AID.
341 wiphy_err(wiphy, "%s: %s: %sassociated\n", KBUILD_MODNAME,
342 __func__, info->assoc ? "" : "dis");
344 wlc_associate_upd(wl->wlc, info->assoc);
347 if (changed & BSS_CHANGED_ERP_SLOT) {
348 /* slot timing changed */
349 if (info->use_short_slot)
354 wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
358 if (changed & BSS_CHANGED_HT) {
359 /* 802.11n parameters changed */
360 u16 mode = info->ht_operation_mode;
363 wlc_protection_upd(wl->wlc, WLC_PROT_N_CFG,
364 mode & IEEE80211_HT_OP_MODE_PROTECTION);
365 wlc_protection_upd(wl->wlc, WLC_PROT_N_NONGF,
366 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
367 wlc_protection_upd(wl->wlc, WLC_PROT_N_OBSS,
368 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
371 if (changed & BSS_CHANGED_BASIC_RATES) {
372 struct ieee80211_supported_band *bi;
375 struct wl_rateset rs;
378 /* retrieve the current rates */
380 error = wlc_ioctl(wl->wlc, WLC_GET_CURR_RATESET,
381 &rs, sizeof(rs), NULL);
384 wiphy_err(wiphy, "%s: retrieve rateset failed: %d\n",
388 br_mask = info->basic_rates;
389 bi = hw->wiphy->bands[wlc_get_curband(wl->wlc)];
390 for (i = 0; i < bi->n_bitrates; i++) {
391 /* convert to internal rate value */
392 rate = (bi->bitrates[i].bitrate << 1) / 10;
394 /* set/clear basic rate flag */
395 wl_set_basic_rate(&rs, rate, br_mask & 1);
399 /* update the rate set */
401 wlc_ioctl(wl->wlc, WLC_SET_RATESET, &rs, sizeof(rs), NULL);
404 if (changed & BSS_CHANGED_BEACON_INT) {
405 /* Beacon interval changed */
407 wlc_set(wl->wlc, WLC_SET_BCNPRD, info->beacon_int);
410 if (changed & BSS_CHANGED_BSSID) {
411 /* BSSID changed, for whatever reason (IBSS and managed mode) */
413 wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
417 if (changed & BSS_CHANGED_BEACON) {
418 /* Beacon data changed, retrieve new beacon (beaconing modes) */
419 wiphy_err(wiphy, "%s: beacon changed\n", __func__);
421 if (changed & BSS_CHANGED_BEACON_ENABLED) {
422 /* Beaconing should be enabled/disabled (beaconing modes) */
423 wiphy_err(wiphy, "%s: Beacon enabled: %s\n", __func__,
424 info->enable_beacon ? "true" : "false");
426 if (changed & BSS_CHANGED_CQM) {
427 /* Connection quality monitor config changed */
428 wiphy_err(wiphy, "%s: cqm change: threshold %d, hys %d "
429 " (implement)\n", __func__, info->cqm_rssi_thold,
430 info->cqm_rssi_hyst);
432 if (changed & BSS_CHANGED_IBSS) {
433 /* IBSS join status changed */
434 wiphy_err(wiphy, "%s: IBSS joined: %s (implement)\n", __func__,
435 info->ibss_joined ? "true" : "false");
437 if (changed & BSS_CHANGED_ARP_FILTER) {
438 /* Hardware ARP filter address list or state changed */
439 wiphy_err(wiphy, "%s: arp filtering: enabled %s, count %d"
440 " (implement)\n", __func__, info->arp_filter_enabled ?
441 "true" : "false", info->arp_addr_cnt);
443 if (changed & BSS_CHANGED_QOS) {
445 * QoS for this association was enabled/disabled.
446 * Note that it is only ever disabled for station mode.
448 wiphy_err(wiphy, "%s: qos enabled: %s (implement)\n", __func__,
449 info->qos ? "true" : "false");
451 if (changed & BSS_CHANGED_IDLE) {
452 /* Idle changed for this BSS/interface */
453 wiphy_err(wiphy, "%s: BSS idle: %s (implement)\n", __func__,
454 info->idle ? "true" : "false");
460 wl_ops_configure_filter(struct ieee80211_hw *hw,
461 unsigned int changed_flags,
462 unsigned int *total_flags, u64 multicast)
464 struct wl_info *wl = hw->priv;
465 struct wiphy *wiphy = hw->wiphy;
467 changed_flags &= MAC_FILTERS;
468 *total_flags &= MAC_FILTERS;
469 if (changed_flags & FIF_PROMISC_IN_BSS)
470 wiphy_err(wiphy, "FIF_PROMISC_IN_BSS\n");
471 if (changed_flags & FIF_ALLMULTI)
472 wiphy_err(wiphy, "FIF_ALLMULTI\n");
473 if (changed_flags & FIF_FCSFAIL)
474 wiphy_err(wiphy, "FIF_FCSFAIL\n");
475 if (changed_flags & FIF_PLCPFAIL)
476 wiphy_err(wiphy, "FIF_PLCPFAIL\n");
477 if (changed_flags & FIF_CONTROL)
478 wiphy_err(wiphy, "FIF_CONTROL\n");
479 if (changed_flags & FIF_OTHER_BSS)
480 wiphy_err(wiphy, "FIF_OTHER_BSS\n");
481 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
483 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
484 wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
485 wlc_mac_bcn_promisc_change(wl->wlc, 1);
487 wlc_mac_bcn_promisc_change(wl->wlc, 0);
488 wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
496 wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
501 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw)
503 struct wl_info *wl = hw->priv;
505 wlc_scan_start(wl->wlc);
510 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw)
512 struct wl_info *wl = hw->priv;
514 wlc_scan_stop(wl->wlc);
519 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
521 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
526 wl_ops_get_stats(struct ieee80211_hw *hw,
527 struct ieee80211_low_level_stats *stats)
529 struct wl_info *wl = hw->priv;
534 stats->dot11ACKFailureCount = 0;
535 stats->dot11RTSFailureCount = 0;
536 stats->dot11FCSErrorCount = 0;
537 stats->dot11RTSSuccessCount = 0;
543 wl_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
544 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
548 wiphy_err(hw->wiphy, "%s: Unknown cmd = %d\n", __func__,
556 wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
557 const struct ieee80211_tx_queue_params *params)
559 struct wl_info *wl = hw->priv;
562 wlc_wme_setparams(wl->wlc, queue, params, true);
568 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw)
570 wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
575 wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
576 struct ieee80211_sta *sta)
581 struct wl_info *wl = hw->priv;
584 scb = (struct scb *)sta->drv_priv;
585 memset(scb, 0, sizeof(struct scb));
586 for (i = 0; i < NUMPRIO; i++)
587 scb->seqctl[i] = 0xFFFF;
588 scb->seqctl_nonqos = 0xFFFF;
589 scb->magic = SCB_MAGIC;
591 wl->pub->global_scb = scb;
592 wl->pub->global_ampdu = &(scb->scb_ampdu);
593 wl->pub->global_ampdu->scb = scb;
594 wl->pub->global_ampdu->max_pdu = 16;
595 bcm_pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
596 AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
598 sta->ht_cap.ht_supported = true;
599 sta->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
600 sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
601 sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
602 IEEE80211_HT_CAP_SGI_20 |
603 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
605 /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
610 wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
611 struct ieee80211_sta *sta)
617 wl_ops_ampdu_action(struct ieee80211_hw *hw,
618 struct ieee80211_vif *vif,
619 enum ieee80211_ampdu_mlme_action action,
620 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
623 struct scb *scb = (struct scb *)sta->drv_priv;
624 struct wl_info *wl = hw->priv;
627 if (WARN_ON(scb->magic != SCB_MAGIC))
630 case IEEE80211_AMPDU_RX_START:
632 case IEEE80211_AMPDU_RX_STOP:
634 case IEEE80211_AMPDU_TX_START:
636 status = wlc_aggregatable(wl->wlc, tid);
639 wiphy_err(wl->wiphy, "START: tid %d is not agg\'able\n",
643 /* XXX: Use the starting sequence number provided ... */
645 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
648 case IEEE80211_AMPDU_TX_STOP:
650 wlc_ampdu_flush(wl->wlc, sta, tid);
652 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
654 case IEEE80211_AMPDU_TX_OPERATIONAL:
655 /* Not sure what to do here */
656 /* Power save wakeup */
659 wiphy_err(wl->wiphy, "%s: Invalid command, ignoring\n",
666 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw)
668 struct wl_info *wl = HW_TO_WL(hw);
672 blocked = wlc_check_radio_disabled(wl->wlc);
675 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
678 static void wl_ops_flush(struct ieee80211_hw *hw, bool drop)
680 struct wl_info *wl = HW_TO_WL(hw);
682 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
684 /* wait for packet queue and dma fifos to run empty */
686 wlc_wait_for_tx_completion(wl->wlc, drop);
690 static const struct ieee80211_ops wl_ops = {
692 .start = wl_ops_start,
694 .add_interface = wl_ops_add_interface,
695 .remove_interface = wl_ops_remove_interface,
696 .config = wl_ops_config,
697 .bss_info_changed = wl_ops_bss_info_changed,
698 .configure_filter = wl_ops_configure_filter,
699 .set_tim = wl_ops_set_tim,
700 .sw_scan_start = wl_ops_sw_scan_start,
701 .sw_scan_complete = wl_ops_sw_scan_complete,
702 .set_tsf = wl_ops_set_tsf,
703 .get_stats = wl_ops_get_stats,
704 .sta_notify = wl_ops_sta_notify,
705 .conf_tx = wl_ops_conf_tx,
706 .get_tsf = wl_ops_get_tsf,
707 .sta_add = wl_ops_sta_add,
708 .sta_remove = wl_ops_sta_remove,
709 .ampdu_action = wl_ops_ampdu_action,
710 .rfkill_poll = wl_ops_rfkill_poll,
711 .flush = wl_ops_flush,
715 * is called in wl_pci_probe() context, therefore no locking required.
717 static int wl_set_hint(struct wl_info *wl, char *abbrev)
719 return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
723 * attach to the WL device.
725 * Attach to the WL device identified by vendor and device parameters.
726 * regs is a host accessible memory address pointing to WL device registers.
728 * wl_attach is not defined as static because in the case where no bus
729 * is defined, wl_attach will never be called, and thus, gcc will issue
730 * a warning that this function is defined but not used if we declare
734 * is called in wl_pci_probe() context, therefore no locking required.
736 static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs,
737 uint bustype, void *btparam, uint irq)
739 struct wl_info *wl = NULL;
741 unsigned long base_addr;
742 struct ieee80211_hw *hw;
752 /* allocate private info */
753 hw = pci_get_drvdata(btparam); /* btparam == pdev */
756 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
758 wl->wiphy = hw->wiphy;
760 atomic_set(&wl->callbacks, 0);
762 /* setup the bottom half handler */
763 tasklet_init(&wl->tasklet, wl_dpc, (unsigned long) wl);
769 if (bustype == PCI_BUS || bustype == RPC_BUS) {
773 BCMMSG(wl->wiphy, "force to PCI\n");
775 wl->bcm_bustype = bustype;
777 wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
778 if (wl->regsva == NULL) {
779 wiphy_err(wl->wiphy, "wl%d: ioremap() failed\n", unit);
782 spin_lock_init(&wl->lock);
783 spin_lock_init(&wl->isr_lock);
786 if (wl_request_fw(wl, (struct pci_dev *)btparam) < 0) {
787 wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in "
788 "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm");
790 wl_remove((struct pci_dev *)btparam);
794 /* common load-time initialization */
795 wl->wlc = wlc_attach((void *)wl, vendor, device, unit, false,
796 wl->regsva, wl->bcm_bustype, btparam, &err);
799 wiphy_err(wl->wiphy, "%s: wlc_attach() failed with code %d\n",
800 KBUILD_MODNAME, err);
803 wl->pub = wlc_pub(wl->wlc);
805 wl->pub->ieee_hw = hw;
807 if (wlc_set_par(wl->wlc, IOV_MPC, 0) < 0) {
808 wiphy_err(wl->wiphy, "wl%d: Error setting MPC variable to 0\n",
812 /* register our interrupt handler */
813 if (request_irq(irq, wl_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
814 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
819 /* register module */
820 wlc_module_register(wl->pub, "linux", wl, wl_linux_watchdog, NULL);
822 if (ieee_hw_init(hw)) {
823 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
828 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
829 if (WARN_ON(!is_valid_ether_addr(perm)))
831 SET_IEEE80211_PERM_ADDR(hw, perm);
833 err = ieee80211_register_hw(hw);
835 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
836 "%d\n", __func__, err);
839 if (wl->pub->srom_ccode[0])
840 err = wl_set_hint(wl, wl->pub->srom_ccode);
842 err = wl_set_hint(wl, "US");
844 wiphy_err(wl->wiphy, "%s: regulatory_hint failed, status %d\n",
858 #define CHAN2GHZ(channel, freqency, chflags) { \
859 .band = IEEE80211_BAND_2GHZ, \
860 .center_freq = (freqency), \
861 .hw_value = (channel), \
863 .max_antenna_gain = 0, \
867 static struct ieee80211_channel wl_2ghz_chantable[] = {
868 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
869 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
870 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
871 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
872 CHAN2GHZ(5, 2432, 0),
873 CHAN2GHZ(6, 2437, 0),
874 CHAN2GHZ(7, 2442, 0),
875 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
876 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
877 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
878 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
880 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
881 IEEE80211_CHAN_NO_HT40PLUS),
883 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
884 IEEE80211_CHAN_NO_HT40PLUS),
886 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
887 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
890 #define CHAN5GHZ(channel, chflags) { \
891 .band = IEEE80211_BAND_5GHZ, \
892 .center_freq = 5000 + 5*(channel), \
893 .hw_value = (channel), \
895 .max_antenna_gain = 0, \
899 static struct ieee80211_channel wl_5ghz_nphy_chantable[] = {
901 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
902 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
903 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
904 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
907 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
908 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
910 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
911 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
913 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
914 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
916 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
917 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
920 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
921 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
923 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
924 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
926 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
927 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
929 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
930 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
932 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
933 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
935 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
936 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
938 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
939 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
941 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
942 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
944 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
945 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
947 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
948 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
950 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
951 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
952 IEEE80211_CHAN_NO_HT40MINUS),
954 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
955 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
956 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
957 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
958 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
961 #define RATE(rate100m, _flags) { \
962 .bitrate = (rate100m), \
964 .hw_value = (rate100m / 5), \
967 static struct ieee80211_rate wl_legacy_ratetable[] = {
969 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
970 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
971 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
982 static struct ieee80211_supported_band wl_band_2GHz_nphy = {
983 .band = IEEE80211_BAND_2GHZ,
984 .channels = wl_2ghz_chantable,
985 .n_channels = ARRAY_SIZE(wl_2ghz_chantable),
986 .bitrates = wl_legacy_ratetable,
987 .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable),
989 /* from include/linux/ieee80211.h */
990 .cap = IEEE80211_HT_CAP_GRN_FLD |
991 IEEE80211_HT_CAP_SGI_20 |
992 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
993 .ht_supported = true,
994 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
995 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
997 /* placeholders for now */
998 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1000 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1004 static struct ieee80211_supported_band wl_band_5GHz_nphy = {
1005 .band = IEEE80211_BAND_5GHZ,
1006 .channels = wl_5ghz_nphy_chantable,
1007 .n_channels = ARRAY_SIZE(wl_5ghz_nphy_chantable),
1008 .bitrates = wl_legacy_ratetable + 4,
1009 .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable) - 4,
1011 /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
1012 .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 */
1013 .ht_supported = true,
1014 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
1015 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1017 /* placeholders for now */
1018 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1020 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1025 * is called in wl_pci_probe() context, therefore no locking required.
1027 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1029 struct wl_info *wl = HW_TO_WL(hw);
1035 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
1036 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1038 if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
1039 wiphy_err(hw->wiphy, "Phy list failed\n");
1042 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1043 if (phy_list[0] == 'c') {
1045 wl_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
1046 wl_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
1048 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl_band_2GHz_nphy;
1053 /* Assume all bands use the same phy. True for 11n devices. */
1054 if (NBANDS_PUB(wl->pub) > 1) {
1056 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1057 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1067 * is called in wl_pci_probe() context, therefore no locking required.
1069 static int ieee_hw_init(struct ieee80211_hw *hw)
1071 hw->flags = IEEE80211_HW_SIGNAL_DBM
1072 /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
1073 | IEEE80211_HW_REPORTS_TX_ACK_STATUS
1074 | IEEE80211_HW_AMPDU_AGGREGATION;
1076 hw->extra_tx_headroom = wlc_get_header_len();
1077 hw->queues = N_TX_QUEUES;
1078 /* FIXME: this doesn't seem to be used properly in minstrel_ht.
1079 * mac80211/status.c:ieee80211_tx_status() checks this value,
1080 * but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1081 * appears to always set 3 rates
1083 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1085 hw->channel_change_time = 7 * 1000; /* channel change time is dependent on chip and band */
1086 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1088 hw->rate_control_algorithm = "minstrel_ht";
1090 hw->sta_data_size = sizeof(struct scb);
1091 return ieee_hw_rate_init(hw);
1095 * determines if a device is a WL device, and if so, attaches it.
1097 * This function determines if a device pointed to by pdev is a WL device,
1098 * and if so, performs a wl_attach() on it.
1100 * Perimeter lock is initialized in the course of this function.
1102 static int __devinit
1103 wl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1107 struct ieee80211_hw *hw;
1110 dev_info(&pdev->dev, "bus %d slot %d func %d irq %d\n",
1111 pdev->bus->number, PCI_SLOT(pdev->devfn),
1112 PCI_FUNC(pdev->devfn), pdev->irq);
1114 if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1115 (((pdev->device & 0xff00) != 0x4300) &&
1116 ((pdev->device & 0xff00) != 0x4700) &&
1117 ((pdev->device < 43000) || (pdev->device > 43999))))
1120 rc = pci_enable_device(pdev);
1122 pr_err("%s: Cannot enable device %d-%d_%d\n",
1123 __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1124 PCI_FUNC(pdev->devfn));
1127 pci_set_master(pdev);
1129 pci_read_config_dword(pdev, 0x40, &val);
1130 if ((val & 0x0000ff00) != 0)
1131 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1133 hw = ieee80211_alloc_hw(sizeof(struct wl_info), &wl_ops);
1135 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1139 SET_IEEE80211_DEV(hw, &pdev->dev);
1141 pci_set_drvdata(pdev, hw);
1143 memset(hw->priv, 0, sizeof(*wl));
1145 wl = wl_attach(pdev->vendor, pdev->device, pci_resource_start(pdev, 0),
1146 PCI_BUS, pdev, pdev->irq);
1149 pr_err("%s: %s: wl_attach failed!\n", KBUILD_MODNAME,
1156 static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
1159 struct ieee80211_hw *hw;
1161 hw = pci_get_drvdata(pdev);
1164 wiphy_err(wl->wiphy,
1165 "wl_suspend: pci_get_drvdata failed\n");
1169 /* only need to flag hw is down for proper resume */
1171 wl->pub->hw_up = false;
1174 pci_save_state(pdev);
1175 pci_disable_device(pdev);
1176 return pci_set_power_state(pdev, PCI_D3hot);
1179 static int wl_resume(struct pci_dev *pdev)
1182 struct ieee80211_hw *hw;
1186 hw = pci_get_drvdata(pdev);
1189 wiphy_err(wl->wiphy,
1190 "wl: wl_resume: pci_get_drvdata failed\n");
1194 err = pci_set_power_state(pdev, PCI_D0);
1198 pci_restore_state(pdev);
1200 err = pci_enable_device(pdev);
1204 pci_set_master(pdev);
1206 pci_read_config_dword(pdev, 0x40, &val);
1207 if ((val & 0x0000ff00) != 0)
1208 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1211 * done. driver will be put in up state
1212 * in wl_ops_add_interface() call.
1218 * called from both kernel as from wl_*()
1219 * precondition: perimeter lock is not acquired.
1221 static void wl_remove(struct pci_dev *pdev)
1224 struct ieee80211_hw *hw;
1227 hw = pci_get_drvdata(pdev);
1230 pr_err("wl: wl_remove: pci_get_drvdata failed\n");
1235 status = wlc_chipmatch(pdev->vendor, pdev->device);
1238 wiphy_err(wl->wiphy, "wl: wl_remove: wlc_chipmatch failed\n");
1242 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1243 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1244 ieee80211_unregister_hw(hw);
1249 pci_disable_device(pdev);
1253 pci_set_drvdata(pdev, NULL);
1254 ieee80211_free_hw(hw);
1257 static struct pci_driver wl_pci_driver = {
1258 .name = KBUILD_MODNAME,
1259 .probe = wl_pci_probe,
1260 .suspend = wl_suspend,
1261 .resume = wl_resume,
1262 .remove = __devexit_p(wl_remove),
1263 .id_table = wl_id_table,
1267 * This is the main entry point for the WL driver.
1269 * This function determines if a device pointed to by pdev is a WL device,
1270 * and if so, performs a wl_attach() on it.
1273 static int __init wl_module_init(void)
1275 int error = -ENODEV;
1278 if (msglevel != 0xdeadbeef)
1279 wl_msg_level = msglevel;
1281 char *var = getvar(NULL, "wl_msglevel");
1283 unsigned long value;
1285 (void)strict_strtoul(var, 0, &value);
1286 wl_msg_level = value;
1289 if (phymsglevel != 0xdeadbeef)
1290 phyhal_msg_level = phymsglevel;
1292 char *var = getvar(NULL, "phy_msglevel");
1294 unsigned long value;
1296 (void)strict_strtoul(var, 0, &value);
1297 phyhal_msg_level = value;
1302 error = pci_register_driver(&wl_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 wl_module_exit(void)
1320 pci_unregister_driver(&wl_pci_driver);
1324 module_init(wl_module_init);
1325 module_exit(wl_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 wl_free(struct wl_info *wl)
1338 struct wl_timer *t, *next;
1340 /* free ucode data */
1342 wl_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 wl_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 wl_txflowcontrol(struct wl_info *wl, struct wl_if *wlif, bool state,
1409 wiphy_err(wl->wiphy, "Shouldn't be here %s\n", __func__);
1413 * precondition: perimeter lock has been acquired
1415 void wl_init(struct wl_info *wl)
1417 BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
1424 * precondition: perimeter lock has been acquired
1426 uint wl_reset(struct wl_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 wl_intrson(struct wl_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 wl_info *wl, uint addrwidth)
1458 u32 wl_intrsoff(struct wl_info *wl)
1460 unsigned long flags;
1463 INT_LOCK(wl, flags);
1464 status = wlc_intrsoff(wl->wlc);
1465 INT_UNLOCK(wl, flags);
1469 void wl_intrsrestore(struct wl_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 wl_up(struct wl_info *wl)
1488 error = wlc_up(wl->wlc);
1494 * precondition: perimeter lock has been acquired
1496 void wl_down(struct wl_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 wl_isr(int irq, void *dev_id)
1519 unsigned long flags;
1521 wl = (struct wl_info *) dev_id;
1523 WL_ISRLOCK(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 WL_ISRUNLOCK(wl, flags);
1539 return IRQ_RETVAL(ours);
1542 static void wl_dpc(unsigned long data)
1546 wl = (struct wl_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 wl_timer(unsigned long data)
1584 _wl_timer((struct wl_timer *) data);
1588 * precondition: perimeter lock is not acquired
1590 static void _wl_timer(struct wl_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 wl_timer *wl_init_timer(struct wl_info *wl, void (*fn) (void *arg),
1618 void *arg, const char *name)
1622 t = kzalloc(sizeof(struct wl_timer), GFP_ATOMIC);
1624 wiphy_err(wl->wiphy, "wl%d: wl_init_timer: out of memory\n",
1629 init_timer(&t->timer);
1630 t->timer.data = (unsigned long) t;
1631 t->timer.function = wl_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 wl_add_timer(struct wl_info *wl, struct wl_timer *t, uint ms, int periodic)
1656 wiphy_err(wl->wiphy, "%s: Already set. Name: %s, per %d\n",
1657 __func__, t->name, periodic);
1661 t->periodic = (bool) periodic;
1663 t->timer.expires = jiffies + ms * HZ / 1000;
1665 atomic_inc(&wl->callbacks);
1666 add_timer(&t->timer);
1670 * return true if timer successfully deleted, false if still pending
1672 * precondition: perimeter lock has been acquired
1674 bool wl_del_timer(struct wl_info *wl, struct wl_timer *t)
1678 if (!del_timer(&t->timer)) {
1681 atomic_dec(&wl->callbacks);
1688 * precondition: perimeter lock has been acquired
1690 void wl_free_timer(struct wl_info *wl, struct wl_timer *t)
1692 struct wl_timer *tmp;
1694 /* delete the timer in case it is active */
1695 wl_del_timer(wl, t);
1697 if (wl->timers == t) {
1698 wl->timers = wl->timers->next;
1709 if (tmp->next == t) {
1710 tmp->next = t->next;
1723 * runs in software irq context
1725 * precondition: perimeter lock is not acquired
1727 static int wl_linux_watchdog(void *ctx)
1738 char *wl_firmwares[WL_MAX_FW] = {
1744 * precondition: perimeter lock has been acquired
1746 int wl_ucode_init_buf(struct wl_info *wl, void **pbuf, u32 idx)
1750 struct wl_fw_hdr *hdr;
1751 for (i = 0; i < wl->fw.fw_cnt; i++) {
1752 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1753 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1755 if (hdr->idx == idx) {
1756 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1757 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1758 if (*pbuf == NULL) {
1759 wiphy_err(wl->wiphy, "fail to alloc %d"
1760 " bytes\n", hdr->len);
1763 memcpy(*pbuf, pdata, hdr->len);
1768 wiphy_err(wl->wiphy, "ERROR: ucode buf tag:%d can not be found!\n",
1776 * Precondition: Since this function is called in wl_pci_probe() context,
1777 * no locking is required.
1779 int wl_ucode_init_uint(struct wl_info *wl, u32 *data, u32 idx)
1783 struct wl_fw_hdr *hdr;
1784 for (i = 0; i < wl->fw.fw_cnt; i++) {
1785 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1786 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1788 if (hdr->idx == idx) {
1789 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1790 if (hdr->len != 4) {
1791 wiphy_err(wl->wiphy,
1792 "ERROR: fw hdr len\n");
1795 *data = *((u32 *) pdata);
1800 wiphy_err(wl->wiphy, "ERROR: ucode tag:%d can not be found!\n", idx);
1805 * Precondition: Since this function is called in wl_pci_probe() context,
1806 * no locking is required.
1808 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev)
1811 struct device *device = &pdev->dev;
1815 memset((void *)&wl->fw, 0, sizeof(struct wl_firmware));
1816 for (i = 0; i < WL_MAX_FW; i++) {
1817 if (wl_firmwares[i] == NULL)
1819 sprintf(fw_name, "%s-%d.fw", wl_firmwares[i],
1820 UCODE_LOADER_API_VER);
1821 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1823 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1824 KBUILD_MODNAME, fw_name);
1827 sprintf(fw_name, "%s_hdr-%d.fw", wl_firmwares[i],
1828 UCODE_LOADER_API_VER);
1829 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1831 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
1832 KBUILD_MODNAME, fw_name);
1835 wl->fw.hdr_num_entries[i] =
1836 wl->fw.fw_hdr[i]->size / (sizeof(struct wl_fw_hdr));
1839 return wl_ucode_data_init(wl);
1843 * precondition: can both be called locked and unlocked
1845 void wl_ucode_free_buf(void *p)
1851 * Precondition: Since this function is called in wl_pci_probe() context,
1852 * no locking is required.
1854 static void wl_release_fw(struct wl_info *wl)
1857 for (i = 0; i < WL_MAX_FW; i++) {
1858 release_firmware(wl->fw.fw_bin[i]);
1859 release_firmware(wl->fw.fw_hdr[i]);
1865 * checks validity of all firmware images loaded from user space
1867 * Precondition: Since this function is called in wl_pci_probe() context,
1868 * no locking is required.
1870 int wl_check_firmwares(struct wl_info *wl)
1875 const struct firmware *fw;
1876 const struct firmware *fw_hdr;
1877 struct wl_fw_hdr *ucode_hdr;
1878 for (i = 0; i < WL_MAX_FW && rc == 0; i++) {
1879 fw = wl->fw.fw_bin[i];
1880 fw_hdr = wl->fw.fw_hdr[i];
1881 if (fw == NULL && fw_hdr == NULL) {
1883 } else if (fw == NULL || fw_hdr == NULL) {
1884 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1887 } else if (fw_hdr->size % sizeof(struct wl_fw_hdr)) {
1888 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1889 "size %zu/%zu\n", __func__, fw_hdr->size,
1890 sizeof(struct wl_fw_hdr));
1892 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1893 wiphy_err(wl->wiphy, "%s: out of bounds fw file size "
1894 "%zu\n", __func__, fw->size);
1897 /* check if ucode section overruns firmware image */
1898 ucode_hdr = (struct wl_fw_hdr *)fw_hdr->data;
1899 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1900 !rc; entry++, ucode_hdr++) {
1901 if (ucode_hdr->offset + ucode_hdr->len >
1903 wiphy_err(wl->wiphy,
1904 "%s: conflicting bin/hdr\n",
1911 if (rc == 0 && wl->fw.fw_cnt != i) {
1912 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1920 * precondition: perimeter lock has been acquired
1922 bool wl_rfkill_set_hw_state(struct wl_info *wl)
1924 bool blocked = wlc_check_radio_disabled(wl->wlc);
1927 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1929 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1935 * precondition: perimeter lock has been acquired
1937 void wl_msleep(struct wl_info *wl, uint ms)