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/802.1d.h>
38 #include "phy/phy_version.h"
41 #include "phy/wlc_phy_hal.h"
42 #include "wlc_channel.h"
46 #include "wl_export.h"
48 #include "d11ucode_ext.h"
49 #include "wl_mac80211.h"
51 static void wl_timer(unsigned long data);
52 static void _wl_timer(wl_timer_t *t);
55 static int ieee_hw_init(struct ieee80211_hw *hw);
56 static int ieee_hw_rate_init(struct ieee80211_hw *hw);
58 static int wl_linux_watchdog(void *ctx);
60 /* Flags we support */
61 #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
67 FIF_BCN_PRBRESP_PROMISC)
71 #define WL_DEV_IF(dev) ((struct wl_if *)netdev_priv(dev))
72 #define WL_INFO(dev) ((struct wl_info *)(WL_DEV_IF(dev)->wl))
73 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev);
74 static void wl_release_fw(struct wl_info *wl);
76 /* local prototypes */
77 static int wl_start(struct sk_buff *skb, struct wl_info *wl);
78 static int wl_start_int(struct wl_info *wl, struct ieee80211_hw *hw,
80 static void wl_dpc(unsigned long data);
81 static irqreturn_t wl_isr(int irq, void *dev_id);
83 static int __devinit wl_pci_probe(struct pci_dev *pdev,
84 const struct pci_device_id *ent);
85 static void wl_remove(struct pci_dev *pdev);
86 static void wl_free(struct wl_info *wl);
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_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
115 static int wl_ops_start(struct ieee80211_hw *hw);
116 static void wl_ops_stop(struct ieee80211_hw *hw);
117 static int wl_ops_add_interface(struct ieee80211_hw *hw,
118 struct ieee80211_vif *vif);
119 static void wl_ops_remove_interface(struct ieee80211_hw *hw,
120 struct ieee80211_vif *vif);
121 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed);
122 static void wl_ops_bss_info_changed(struct ieee80211_hw *hw,
123 struct ieee80211_vif *vif,
124 struct ieee80211_bss_conf *info,
126 static void wl_ops_configure_filter(struct ieee80211_hw *hw,
127 unsigned int changed_flags,
128 unsigned int *total_flags, u64 multicast);
129 static int wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
131 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw);
132 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw);
133 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
134 static int wl_ops_get_stats(struct ieee80211_hw *hw,
135 struct ieee80211_low_level_stats *stats);
136 static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
137 static void wl_ops_sta_notify(struct ieee80211_hw *hw,
138 struct ieee80211_vif *vif,
139 enum sta_notify_cmd cmd,
140 struct ieee80211_sta *sta);
141 static int wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
142 const struct ieee80211_tx_queue_params *params);
143 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw);
144 static int wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
145 struct ieee80211_sta *sta);
146 static int wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
147 struct ieee80211_sta *sta);
148 static int wl_ops_ampdu_action(struct ieee80211_hw *hw,
149 struct ieee80211_vif *vif,
150 enum ieee80211_ampdu_mlme_action action,
151 struct ieee80211_sta *sta, u16 tid, u16 *ssn);
152 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw);
154 static int wl_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
157 struct wl_info *wl = hw->priv;
161 WL_ERROR("ops->tx called while down\n");
165 status = wl_start(skb, wl);
171 static int wl_ops_start(struct ieee80211_hw *hw)
173 struct wl_info *wl = hw->priv;
176 struct ieee80211_channel *curchan = hw->conf.channel;
177 WL_NONE("%s : Initial channel: %d\n", __func__, curchan->hw_value);
180 ieee80211_wake_queues(hw);
182 blocked = wl_rfkill_set_hw_state(wl);
185 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
190 static void wl_ops_stop(struct ieee80211_hw *hw)
193 struct wl_info *wl = hw->priv;
196 ieee80211_stop_queues(hw);
200 wl_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
205 /* Just STA for now */
206 if (vif->type != NL80211_IFTYPE_AP &&
207 vif->type != NL80211_IFTYPE_MESH_POINT &&
208 vif->type != NL80211_IFTYPE_STATION &&
209 vif->type != NL80211_IFTYPE_WDS &&
210 vif->type != NL80211_IFTYPE_ADHOC) {
211 WL_ERROR("%s: Attempt to add type %d, only STA for now\n",
212 __func__, vif->type);
222 WL_ERROR("%s: wl_up() returned %d\n", __func__, err);
228 wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
234 /* put driver in down state */
241 * precondition: perimeter lock has been acquired
244 ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
245 enum nl80211_channel_type type)
247 struct wl_info *wl = HW_TO_WL(hw);
251 case NL80211_CHAN_HT20:
252 case NL80211_CHAN_NO_HT:
253 err = wlc_set(wl->wlc, WLC_SET_CHANNEL, chan->hw_value);
255 case NL80211_CHAN_HT40MINUS:
256 case NL80211_CHAN_HT40PLUS:
257 WL_ERROR("%s: Need to implement 40 Mhz Channels!\n", __func__);
267 static int wl_ops_config(struct ieee80211_hw *hw, u32 changed)
269 struct ieee80211_conf *conf = &hw->conf;
270 struct wl_info *wl = HW_TO_WL(hw);
275 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
277 (wl->wlc, "bcn_li_bcn", conf->listen_interval)) {
278 WL_ERROR("%s: Error setting listen_interval\n",
283 wlc_iovar_getint(wl->wlc, "bcn_li_bcn", &new_int);
284 ASSERT(new_int == conf->listen_interval);
286 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
287 WL_ERROR("%s: change monitor mode: %s (implement)\n", __func__,
288 conf->flags & IEEE80211_CONF_MONITOR ?
290 if (changed & IEEE80211_CONF_CHANGE_PS)
291 WL_ERROR("%s: change power-save mode: %s (implement)\n",
292 __func__, conf->flags & IEEE80211_CONF_PS ?
295 if (changed & IEEE80211_CONF_CHANGE_POWER) {
297 (wl->wlc, "qtxpower", conf->power_level * 4)) {
298 WL_ERROR("%s: Error setting power_level\n", __func__);
302 wlc_iovar_getint(wl->wlc, "qtxpower", &new_int);
303 if (new_int != (conf->power_level * 4))
304 WL_ERROR("%s: Power level req != actual, %d %d\n",
305 __func__, conf->power_level * 4, new_int);
307 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
308 err = ieee_set_channel(hw, conf->channel, conf->channel_type);
310 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
312 (wl->wlc, WLC_SET_SRL,
313 conf->short_frame_max_tx_count) < 0) {
314 WL_ERROR("%s: Error setting srl\n", __func__);
318 if (wlc_set(wl->wlc, WLC_SET_LRL, conf->long_frame_max_tx_count)
320 WL_ERROR("%s: Error setting lrl\n", __func__);
332 wl_ops_bss_info_changed(struct ieee80211_hw *hw,
333 struct ieee80211_vif *vif,
334 struct ieee80211_bss_conf *info, u32 changed)
336 struct wl_info *wl = HW_TO_WL(hw);
339 if (changed & BSS_CHANGED_ASSOC) {
340 /* association status changed (associated/disassociated)
341 * also implies a change in the AID.
343 WL_ERROR("%s: %s: %sassociated\n", KBUILD_MODNAME, __func__,
344 info->assoc ? "" : "dis");
345 wlc_associate_upd(wl->wlc, info->assoc);
347 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
348 /* CTS protection changed */
349 WL_ERROR("%s: use_cts_prot: %s (implement)\n", __func__,
350 info->use_cts_prot ? "true" : "false");
352 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
353 /* preamble changed */
354 WL_ERROR("%s: short preamble: %s (implement)\n", __func__,
355 info->use_short_preamble ? "true" : "false");
357 if (changed & BSS_CHANGED_ERP_SLOT) {
358 /* slot timing changed */
359 if (info->use_short_slot)
364 wlc_set(wl->wlc, WLC_SET_SHORTSLOT_OVERRIDE, val);
368 if (changed & BSS_CHANGED_HT) {
369 /* 802.11n parameters changed */
370 u16 mode = info->ht_operation_mode;
371 WL_NONE("%s: HT mode: 0x%04X\n", __func__, mode);
372 wlc_protection_upd(wl->wlc, WLC_PROT_N_CFG,
373 mode & IEEE80211_HT_OP_MODE_PROTECTION);
374 wlc_protection_upd(wl->wlc, WLC_PROT_N_NONGF,
375 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
376 wlc_protection_upd(wl->wlc, WLC_PROT_N_OBSS,
377 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
379 if (changed & BSS_CHANGED_BASIC_RATES) {
380 /* Basic rateset changed */
381 WL_ERROR("%s: Need to change Basic Rates: 0x%x (implement)\n",
382 __func__, (u32) info->basic_rates);
384 if (changed & BSS_CHANGED_BEACON_INT) {
385 /* Beacon interval changed */
386 WL_NONE("%s: Beacon Interval: %d\n",
387 __func__, info->beacon_int);
388 wlc_set(wl->wlc, WLC_SET_BCNPRD, info->beacon_int);
390 if (changed & BSS_CHANGED_BSSID) {
391 /* BSSID changed, for whatever reason (IBSS and managed mode) */
392 WL_NONE("%s: new BSSID: aid %d bss:%pM\n", __func__,
393 info->aid, info->bssid);
395 wlc_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
399 if (changed & BSS_CHANGED_BEACON) {
400 /* Beacon data changed, retrieve new beacon (beaconing modes) */
401 WL_ERROR("%s: beacon changed\n", __func__);
403 if (changed & BSS_CHANGED_BEACON_ENABLED) {
404 /* Beaconing should be enabled/disabled (beaconing modes) */
405 WL_ERROR("%s: Beacon enabled: %s\n", __func__,
406 info->enable_beacon ? "true" : "false");
408 if (changed & BSS_CHANGED_CQM) {
409 /* Connection quality monitor config changed */
410 WL_ERROR("%s: cqm change: threshold %d, hys %d (implement)\n",
411 __func__, info->cqm_rssi_thold, info->cqm_rssi_hyst);
413 if (changed & BSS_CHANGED_IBSS) {
414 /* IBSS join status changed */
415 WL_ERROR("%s: IBSS joined: %s (implement)\n", __func__,
416 info->ibss_joined ? "true" : "false");
418 if (changed & BSS_CHANGED_ARP_FILTER) {
419 /* Hardware ARP filter address list or state changed */
420 WL_ERROR("%s: arp filtering: enabled %s, count %d (implement)\n",
421 __func__, info->arp_filter_enabled ? "true" : "false",
424 if (changed & BSS_CHANGED_QOS) {
426 * QoS for this association was enabled/disabled.
427 * Note that it is only ever disabled for station mode.
429 WL_ERROR("%s: qos enabled: %s (implement)\n", __func__,
430 info->qos ? "true" : "false");
432 if (changed & BSS_CHANGED_IDLE) {
433 /* Idle changed for this BSS/interface */
434 WL_ERROR("%s: BSS idle: %s (implement)\n", __func__,
435 info->idle ? "true" : "false");
441 wl_ops_configure_filter(struct ieee80211_hw *hw,
442 unsigned int changed_flags,
443 unsigned int *total_flags, u64 multicast)
445 struct wl_info *wl = hw->priv;
447 changed_flags &= MAC_FILTERS;
448 *total_flags &= MAC_FILTERS;
449 if (changed_flags & FIF_PROMISC_IN_BSS)
450 WL_ERROR("FIF_PROMISC_IN_BSS\n");
451 if (changed_flags & FIF_ALLMULTI)
452 WL_ERROR("FIF_ALLMULTI\n");
453 if (changed_flags & FIF_FCSFAIL)
454 WL_ERROR("FIF_FCSFAIL\n");
455 if (changed_flags & FIF_PLCPFAIL)
456 WL_ERROR("FIF_PLCPFAIL\n");
457 if (changed_flags & FIF_CONTROL)
458 WL_ERROR("FIF_CONTROL\n");
459 if (changed_flags & FIF_OTHER_BSS)
460 WL_ERROR("FIF_OTHER_BSS\n");
461 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
462 WL_NONE("FIF_BCN_PRBRESP_PROMISC\n");
464 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
465 wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
466 wlc_mac_bcn_promisc_change(wl->wlc, 1);
468 wlc_mac_bcn_promisc_change(wl->wlc, 0);
469 wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
477 wl_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
479 WL_NONE("%s: Enter\n", __func__);
483 static void wl_ops_sw_scan_start(struct ieee80211_hw *hw)
485 struct wl_info *wl = hw->priv;
486 WL_NONE("Scan Start\n");
488 wlc_scan_start(wl->wlc);
493 static void wl_ops_sw_scan_complete(struct ieee80211_hw *hw)
495 struct wl_info *wl = hw->priv;
496 WL_NONE("Scan Complete\n");
498 wlc_scan_stop(wl->wlc);
503 static void wl_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
505 WL_ERROR("%s: Enter\n", __func__);
510 wl_ops_get_stats(struct ieee80211_hw *hw,
511 struct ieee80211_low_level_stats *stats)
513 struct wl_info *wl = hw->priv;
518 stats->dot11ACKFailureCount = cnt->txnoack;
519 stats->dot11RTSFailureCount = cnt->txnocts;
520 stats->dot11FCSErrorCount = cnt->rxcrc;
521 stats->dot11RTSSuccessCount = cnt->txrts;
526 static int wl_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
528 struct wl_info *wl = hw->priv;
531 wlc_iovar_setint(wl->wlc, "rtsthresh", value & 0xFFFF);
537 wl_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
538 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
540 WL_NONE("%s: Enter\n", __func__);
543 WL_ERROR("%s: Unknown cmd = %d\n", __func__, cmd);
550 wl_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
551 const struct ieee80211_tx_queue_params *params)
553 struct wl_info *wl = hw->priv;
555 WL_NONE("%s: Enter (WME config)\n", __func__);
556 WL_NONE("queue %d, txop %d, cwmin %d, cwmax %d, aifs %d\n", queue,
557 params->txop, params->cw_min, params->cw_max, params->aifs);
560 wlc_wme_setparams(wl->wlc, queue, (void *)params, true);
566 static u64 wl_ops_get_tsf(struct ieee80211_hw *hw)
568 WL_ERROR("%s: Enter\n", __func__);
573 wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
574 struct ieee80211_sta *sta)
579 struct wl_info *wl = hw->priv;
582 scb = (struct scb *)sta->drv_priv;
583 memset(scb, 0, sizeof(struct scb));
584 for (i = 0; i < NUMPRIO; i++)
585 scb->seqctl[i] = 0xFFFF;
586 scb->seqctl_nonqos = 0xFFFF;
587 scb->magic = SCB_MAGIC;
589 wl->pub->global_scb = scb;
590 wl->pub->global_ampdu = &(scb->scb_ampdu);
591 wl->pub->global_ampdu->scb = scb;
592 wl->pub->global_ampdu->max_pdu = 16;
593 pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
594 AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
596 sta->ht_cap.ht_supported = true;
597 sta->ht_cap.ampdu_factor = AMPDU_RX_FACTOR_64K;
598 sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
599 sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
600 IEEE80211_HT_CAP_SGI_20 |
601 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
603 /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
608 wl_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
609 struct ieee80211_sta *sta)
611 WL_NONE("%s: Enter\n", __func__);
616 wl_ops_ampdu_action(struct ieee80211_hw *hw,
617 struct ieee80211_vif *vif,
618 enum ieee80211_ampdu_mlme_action action,
619 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
622 struct scb *scb = (struct scb *)sta->drv_priv;
624 struct wl_info *wl = hw->priv;
627 ASSERT(scb->magic == SCB_MAGIC);
629 case IEEE80211_AMPDU_RX_START:
630 WL_NONE("%s: action = IEEE80211_AMPDU_RX_START\n", __func__);
632 case IEEE80211_AMPDU_RX_STOP:
633 WL_NONE("%s: action = IEEE80211_AMPDU_RX_STOP\n", __func__);
635 case IEEE80211_AMPDU_TX_START:
637 status = wlc_aggregatable(wl->wlc, tid);
640 /* WL_ERROR("START: tid %d is not agg' able, return FAILURE to stack\n", tid); */
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:
649 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
651 case IEEE80211_AMPDU_TX_OPERATIONAL:
652 /* Not sure what to do here */
653 /* Power save wakeup */
654 WL_NONE("%s: action = IEEE80211_AMPDU_TX_OPERATIONAL\n",
658 WL_ERROR("%s: Invalid command, ignoring\n", __func__);
664 static void wl_ops_rfkill_poll(struct ieee80211_hw *hw)
666 struct wl_info *wl = HW_TO_WL(hw);
670 blocked = wlc_check_radio_disabled(wl->wlc);
673 WL_NONE("wl: rfkill_poll: %d\n", blocked);
674 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
677 static const struct ieee80211_ops wl_ops = {
679 .start = wl_ops_start,
681 .add_interface = wl_ops_add_interface,
682 .remove_interface = wl_ops_remove_interface,
683 .config = wl_ops_config,
684 .bss_info_changed = wl_ops_bss_info_changed,
685 .configure_filter = wl_ops_configure_filter,
686 .set_tim = wl_ops_set_tim,
687 .sw_scan_start = wl_ops_sw_scan_start,
688 .sw_scan_complete = wl_ops_sw_scan_complete,
689 .set_tsf = wl_ops_set_tsf,
690 .get_stats = wl_ops_get_stats,
691 .set_rts_threshold = wl_ops_set_rts_threshold,
692 .sta_notify = wl_ops_sta_notify,
693 .conf_tx = wl_ops_conf_tx,
694 .get_tsf = wl_ops_get_tsf,
695 .sta_add = wl_ops_sta_add,
696 .sta_remove = wl_ops_sta_remove,
697 .ampdu_action = wl_ops_ampdu_action,
698 .rfkill_poll = wl_ops_rfkill_poll,
702 * is called in wl_pci_probe() context, therefore no locking required.
704 static int wl_set_hint(struct wl_info *wl, char *abbrev)
706 WL_NONE("%s: Sending country code %c%c to MAC80211\n",
707 __func__, abbrev[0], abbrev[1]);
708 return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
712 * attach to the WL device.
714 * Attach to the WL device identified by vendor and device parameters.
715 * regs is a host accessible memory address pointing to WL device registers.
717 * wl_attach is not defined as static because in the case where no bus
718 * is defined, wl_attach will never be called, and thus, gcc will issue
719 * a warning that this function is defined but not used if we declare
723 * is called in wl_pci_probe() context, therefore no locking required.
725 static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs,
726 uint bustype, void *btparam, uint irq)
729 struct osl_info *osh;
732 unsigned long base_addr;
733 struct ieee80211_hw *hw;
740 WL_ERROR("wl%d: unit number overflow, exiting\n", unit);
744 osh = osl_attach(btparam, bustype);
747 /* allocate private info */
748 hw = pci_get_drvdata(btparam); /* btparam == pdev */
753 atomic_set(&wl->callbacks, 0);
755 /* setup the bottom half handler */
756 tasklet_init(&wl->tasklet, wl_dpc, (unsigned long) wl);
762 if (bustype == PCI_BUS) {
764 } else if (bustype == RPC_BUS) {
768 WL_TRACE("force to PCI\n");
770 wl->bcm_bustype = bustype;
772 wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
773 if (wl->regsva == NULL) {
774 WL_ERROR("wl%d: ioremap() failed\n", unit);
777 spin_lock_init(&wl->lock);
778 spin_lock_init(&wl->isr_lock);
781 if (wl_request_fw(wl, (struct pci_dev *)btparam) < 0) {
782 WL_ERROR("%s: Failed to find firmware usually in %s\n",
783 KBUILD_MODNAME, "/lib/firmware/brcm");
785 wl_remove((struct pci_dev *)btparam);
789 /* common load-time initialization */
790 wl->wlc = wlc_attach((void *)wl, vendor, device, unit, wl->piomode, osh,
791 wl->regsva, wl->bcm_bustype, btparam, &err);
794 WL_ERROR("%s: wlc_attach() failed with code %d\n",
795 KBUILD_MODNAME, err);
798 wl->pub = wlc_pub(wl->wlc);
800 wl->pub->ieee_hw = hw;
801 ASSERT(wl->pub->ieee_hw);
802 ASSERT(wl->pub->ieee_hw->priv == wl);
805 if (wlc_iovar_setint(wl->wlc, "mpc", 0)) {
806 WL_ERROR("wl%d: Error setting MPC variable to 0\n", unit);
809 /* register our interrupt handler */
810 if (request_irq(irq, wl_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
811 WL_ERROR("wl%d: request_irq() failed\n", unit);
816 /* register module */
817 wlc_module_register(wl->pub, NULL, "linux", wl, NULL, wl_linux_watchdog,
820 if (ieee_hw_init(hw)) {
821 WL_ERROR("wl%d: %s: ieee_hw_init failed!\n", unit, __func__);
825 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
826 ASSERT(is_valid_ether_addr(perm));
827 SET_IEEE80211_PERM_ADDR(hw, perm);
829 err = ieee80211_register_hw(hw);
831 WL_ERROR("%s: ieee80211_register_hw failed, status %d\n",
835 if (wl->pub->srom_ccode[0])
836 err = wl_set_hint(wl, wl->pub->srom_ccode);
838 err = wl_set_hint(wl, "US");
840 WL_ERROR("%s: regulatory_hint failed, status %d\n",
855 #define CHAN2GHZ(channel, freqency, chflags) { \
856 .band = IEEE80211_BAND_2GHZ, \
857 .center_freq = (freqency), \
858 .hw_value = (channel), \
860 .max_antenna_gain = 0, \
864 static struct ieee80211_channel wl_2ghz_chantable[] = {
865 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
866 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
867 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
868 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
869 CHAN2GHZ(5, 2432, 0),
870 CHAN2GHZ(6, 2437, 0),
871 CHAN2GHZ(7, 2442, 0),
872 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
873 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
874 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
875 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
877 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
878 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 | IEEE80211_CHAN_NO_HT40MINUS)
887 #define CHAN5GHZ(channel, chflags) { \
888 .band = IEEE80211_BAND_5GHZ, \
889 .center_freq = 5000 + 5*(channel), \
890 .hw_value = (channel), \
892 .max_antenna_gain = 0, \
896 static struct ieee80211_channel wl_5ghz_nphy_chantable[] = {
898 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
899 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
900 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
901 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
904 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
905 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
907 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
908 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
910 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
911 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
913 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
914 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
917 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
918 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
920 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
921 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
923 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
924 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
926 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
927 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
929 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
930 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
932 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
933 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
935 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
936 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
938 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
939 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
941 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
942 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
944 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
945 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
947 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
948 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
949 IEEE80211_CHAN_NO_HT40MINUS),
951 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
952 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
953 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
954 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
955 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
958 #define RATE(rate100m, _flags) { \
959 .bitrate = (rate100m), \
961 .hw_value = (rate100m / 5), \
964 static struct ieee80211_rate wl_legacy_ratetable[] = {
966 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
967 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
968 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
979 static struct ieee80211_supported_band wl_band_2GHz_nphy = {
980 .band = IEEE80211_BAND_2GHZ,
981 .channels = wl_2ghz_chantable,
982 .n_channels = ARRAY_SIZE(wl_2ghz_chantable),
983 .bitrates = wl_legacy_ratetable,
984 .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable),
986 /* from include/linux/ieee80211.h */
987 .cap = IEEE80211_HT_CAP_GRN_FLD |
988 IEEE80211_HT_CAP_SGI_20 |
989 IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
990 .ht_supported = true,
991 .ampdu_factor = AMPDU_RX_FACTOR_64K,
992 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
994 /* placeholders for now */
995 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
997 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1001 static struct ieee80211_supported_band wl_band_5GHz_nphy = {
1002 .band = IEEE80211_BAND_5GHZ,
1003 .channels = wl_5ghz_nphy_chantable,
1004 .n_channels = ARRAY_SIZE(wl_5ghz_nphy_chantable),
1005 .bitrates = wl_legacy_ratetable + 4,
1006 .n_bitrates = ARRAY_SIZE(wl_legacy_ratetable) - 4,
1008 /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
1009 .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 */
1010 .ht_supported = true,
1011 .ampdu_factor = AMPDU_RX_FACTOR_64K,
1012 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
1014 /* placeholders for now */
1015 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
1017 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
1022 * is called in wl_pci_probe() context, therefore no locking required.
1024 static int ieee_hw_rate_init(struct ieee80211_hw *hw)
1026 struct wl_info *wl = HW_TO_WL(hw);
1032 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
1033 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1035 if (wlc_get(wl->wlc, WLC_GET_PHYLIST, (int *)&phy_list) < 0) {
1036 WL_ERROR("Phy list failed\n");
1038 WL_NONE("%s: phylist = %c\n", __func__, phy_list[0]);
1040 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1041 if (phy_list[0] == 'c') {
1043 wl_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
1044 wl_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
1046 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl_band_2GHz_nphy;
1052 /* Assume all bands use the same phy. True for 11n devices. */
1053 if (NBANDS_PUB(wl->pub) > 1) {
1055 if (phy_list[0] == 'n' || phy_list[0] == 'c') {
1056 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1063 WL_NONE("%s: 2ghz = %d, 5ghz = %d\n", __func__, 1, has_5g);
1069 * is called in wl_pci_probe() context, therefore no locking required.
1071 static int ieee_hw_init(struct ieee80211_hw *hw)
1073 hw->flags = IEEE80211_HW_SIGNAL_DBM
1074 /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
1075 | IEEE80211_HW_REPORTS_TX_ACK_STATUS
1076 | IEEE80211_HW_AMPDU_AGGREGATION;
1078 hw->extra_tx_headroom = wlc_get_header_len();
1079 /* FIXME: should get this from wlc->machwcap */
1081 /* FIXME: this doesn't seem to be used properly in minstrel_ht.
1082 * mac80211/status.c:ieee80211_tx_status() checks this value,
1083 * but mac80211/rc80211_minstrel_ht.c:minstrel_ht_get_rate()
1084 * appears to always set 3 rates
1086 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1088 hw->channel_change_time = 7 * 1000; /* channel change time is dependant on chip and band */
1089 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1091 hw->rate_control_algorithm = "minstrel_ht";
1093 hw->sta_data_size = sizeof(struct scb);
1094 return ieee_hw_rate_init(hw);
1098 * determines if a device is a WL device, and if so, attaches it.
1100 * This function determines if a device pointed to by pdev is a WL device,
1101 * and if so, performs a wl_attach() on it.
1103 * Perimeter lock is initialized in the course of this function.
1105 static int __devinit
1106 wl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1110 struct ieee80211_hw *hw;
1115 WL_TRACE("%s: bus %d slot %d func %d irq %d\n",
1116 __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
1117 PCI_FUNC(pdev->devfn), pdev->irq);
1119 if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
1120 (((pdev->device & 0xff00) != 0x4300) &&
1121 ((pdev->device & 0xff00) != 0x4700) &&
1122 ((pdev->device < 43000) || (pdev->device > 43999))))
1125 rc = pci_enable_device(pdev);
1127 WL_ERROR("%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 wl_info), &wl_ops);
1140 WL_ERROR("%s: ieee80211_alloc_hw failed\n", __func__);
1145 SET_IEEE80211_DEV(hw, &pdev->dev);
1147 pci_set_drvdata(pdev, hw);
1149 memset(hw->priv, 0, sizeof(*wl));
1151 wl = wl_attach(pdev->vendor, pdev->device, pci_resource_start(pdev, 0),
1152 PCI_BUS, pdev, pdev->irq);
1155 WL_ERROR("%s: %s: wl_attach failed!\n",
1156 KBUILD_MODNAME, __func__);
1161 WL_ERROR("%s: err_1: Major hoarkage\n", __func__);
1165 static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
1168 struct ieee80211_hw *hw;
1170 WL_TRACE("wl: wl_suspend\n");
1172 hw = pci_get_drvdata(pdev);
1175 WL_ERROR("wl: wl_suspend: pci_get_drvdata failed\n");
1179 /* only need to flag hw is down for proper resume */
1181 wl->pub->hw_up = false;
1184 pci_save_state(pdev);
1185 pci_disable_device(pdev);
1186 return pci_set_power_state(pdev, PCI_D3hot);
1189 static int wl_resume(struct pci_dev *pdev)
1192 struct ieee80211_hw *hw;
1196 WL_TRACE("wl: wl_resume\n");
1197 hw = pci_get_drvdata(pdev);
1200 WL_ERROR("wl: wl_resume: pci_get_drvdata failed\n");
1204 err = pci_set_power_state(pdev, PCI_D0);
1208 pci_restore_state(pdev);
1210 err = pci_enable_device(pdev);
1214 pci_set_master(pdev);
1216 pci_read_config_dword(pdev, 0x40, &val);
1217 if ((val & 0x0000ff00) != 0)
1218 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
1221 * done. driver will be put in up state
1222 * in wl_ops_add_interface() call.
1228 * called from both kernel as from wl_*()
1229 * precondition: perimeter lock is not acquired.
1231 static void wl_remove(struct pci_dev *pdev)
1234 struct ieee80211_hw *hw;
1237 hw = pci_get_drvdata(pdev);
1240 WL_ERROR("wl: wl_remove: pci_get_drvdata failed\n");
1245 status = wlc_chipmatch(pdev->vendor, pdev->device);
1248 WL_ERROR("wl: wl_remove: wlc_chipmatch failed\n");
1252 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
1253 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
1254 ieee80211_unregister_hw(hw);
1258 WL_NONE("%s: Down\n", __func__);
1260 pci_disable_device(pdev);
1264 pci_set_drvdata(pdev, NULL);
1265 ieee80211_free_hw(hw);
1268 static struct pci_driver wl_pci_driver = {
1269 .name = KBUILD_MODNAME,
1270 .probe = wl_pci_probe,
1271 .suspend = wl_suspend,
1272 .resume = wl_resume,
1273 .remove = __devexit_p(wl_remove),
1274 .id_table = wl_id_table,
1278 * This is the main entry point for the WL driver.
1280 * This function determines if a device pointed to by pdev is a WL device,
1281 * and if so, performs a wl_attach() on it.
1284 static int __init wl_module_init(void)
1286 int error = -ENODEV;
1289 if (msglevel != 0xdeadbeef)
1290 wl_msg_level = msglevel;
1292 char *var = getvar(NULL, "wl_msglevel");
1294 wl_msg_level = simple_strtoul(var, NULL, 0);
1297 extern u32 phyhal_msg_level;
1299 if (phymsglevel != 0xdeadbeef)
1300 phyhal_msg_level = phymsglevel;
1302 char *var = getvar(NULL, "phy_msglevel");
1304 phyhal_msg_level = simple_strtoul(var, NULL, 0);
1309 error = pci_register_driver(&wl_pci_driver);
1319 * This function unloads the WL driver from the system.
1321 * This function unconditionally unloads the WL driver module from the
1325 static void __exit wl_module_exit(void)
1327 pci_unregister_driver(&wl_pci_driver);
1331 module_init(wl_module_init);
1332 module_exit(wl_module_exit);
1335 * This function frees the WL per-device resources.
1337 * This function frees resources owned by the WL device pointed to
1338 * by the wl parameter.
1340 * precondition: can both be called locked and unlocked
1343 static void wl_free(struct wl_info *wl)
1345 wl_timer_t *t, *next;
1346 struct osl_info *osh;
1349 /* free ucode data */
1351 wl_ucode_data_free();
1353 free_irq(wl->irq, wl);
1356 tasklet_kill(&wl->tasklet);
1359 wlc_module_unregister(wl->pub, "linux", wl);
1362 /* free common resources */
1364 wlc_detach(wl->wlc);
1369 /* virtual interface deletion is deferred so we cannot spinwait */
1371 /* wait for all pending callbacks to complete */
1372 while (atomic_read(&wl->callbacks) > 0)
1376 for (t = wl->timers; t; t = next) {
1388 * unregister_netdev() calls get_stats() which may read chip registers
1389 * so we cannot unmap the chip registers until after calling unregister_netdev() .
1391 if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
1392 wl->bcm_bustype != JTAG_BUS) {
1393 iounmap((void *)wl->regsva);
1403 * precondition: perimeter lock has been acquired
1405 static int BCMFASTPATH wl_start(struct sk_buff *skb, struct wl_info *wl)
1410 return wl_start_int(wl, WL_TO_HW(wl), skb);
1413 static int BCMFASTPATH
1414 wl_start_int(struct wl_info *wl, struct ieee80211_hw *hw, struct sk_buff *skb)
1416 wlc_sendpkt_mac80211(wl->wlc, skb, hw);
1417 return NETDEV_TX_OK;
1421 * precondition: perimeter lock has been acquired
1423 void wl_txflowcontrol(struct wl_info *wl, struct wl_if *wlif, bool state,
1426 WL_ERROR("Shouldn't be here %s\n", __func__);
1430 * precondition: perimeter lock has been acquired
1432 void wl_init(struct wl_info *wl)
1434 WL_TRACE("wl%d: wl_init\n", wl->pub->unit);
1442 * precondition: perimeter lock has been acquired
1444 uint wl_reset(struct wl_info *wl)
1446 WL_TRACE("wl%d: wl_reset\n", wl->pub->unit);
1450 /* dpc will not be rescheduled */
1457 * These are interrupt on/off entry points. Disable interrupts
1458 * during interrupt state transition.
1460 void BCMFASTPATH wl_intrson(struct wl_info *wl)
1462 unsigned long flags;
1464 INT_LOCK(wl, flags);
1465 wlc_intrson(wl->wlc);
1466 INT_UNLOCK(wl, flags);
1470 * precondition: perimeter lock has been acquired
1472 bool wl_alloc_dma_resources(struct wl_info *wl, uint addrwidth)
1477 u32 BCMFASTPATH wl_intrsoff(struct wl_info *wl)
1479 unsigned long flags;
1482 INT_LOCK(wl, flags);
1483 status = wlc_intrsoff(wl->wlc);
1484 INT_UNLOCK(wl, flags);
1488 void wl_intrsrestore(struct wl_info *wl, u32 macintmask)
1490 unsigned long flags;
1492 INT_LOCK(wl, flags);
1493 wlc_intrsrestore(wl->wlc, macintmask);
1494 INT_UNLOCK(wl, flags);
1498 * precondition: perimeter lock has been acquired
1500 int wl_up(struct wl_info *wl)
1507 error = wlc_up(wl->wlc);
1513 * precondition: perimeter lock has been acquired
1515 void wl_down(struct wl_info *wl)
1517 uint callbacks, ret_val = 0;
1519 /* call common down function */
1520 ret_val = wlc_down(wl->wlc);
1521 callbacks = atomic_read(&wl->callbacks) - ret_val;
1523 /* wait for down callbacks to complete */
1526 /* For HIGH_only driver, it's important to actually schedule other work,
1527 * not just spin wait since everything runs at schedule level
1529 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1534 static irqreturn_t BCMFASTPATH wl_isr(int irq, void *dev_id)
1538 unsigned long flags;
1540 wl = (struct wl_info *) dev_id;
1542 WL_ISRLOCK(wl, flags);
1544 /* call common first level interrupt handler */
1545 ours = wlc_isr(wl->wlc, &wantdpc);
1547 /* if more to do... */
1550 /* ...and call the second level interrupt handler */
1552 ASSERT(wl->resched == false);
1553 tasklet_schedule(&wl->tasklet);
1557 WL_ISRUNLOCK(wl, flags);
1559 return IRQ_RETVAL(ours);
1562 static void BCMFASTPATH wl_dpc(unsigned long data)
1566 wl = (struct wl_info *) data;
1570 /* call the common second level interrupt handler */
1573 unsigned long flags;
1575 INT_LOCK(wl, flags);
1576 wlc_intrsupd(wl->wlc);
1577 INT_UNLOCK(wl, flags);
1580 wl->resched = wlc_dpc(wl->wlc, true);
1583 /* wlc_dpc() may bring the driver down */
1587 /* re-schedule dpc */
1589 tasklet_schedule(&wl->tasklet);
1591 /* re-enable interrupts */
1600 * is called by the kernel from software irq context
1602 static void wl_timer(unsigned long data)
1604 _wl_timer((wl_timer_t *) data);
1608 * precondition: perimeter lock is not acquired
1610 static void _wl_timer(wl_timer_t *t)
1616 t->timer.expires = jiffies + t->ms * HZ / 1000;
1617 atomic_inc(&t->wl->callbacks);
1618 add_timer(&t->timer);
1626 atomic_dec(&t->wl->callbacks);
1632 * Adds a timer to the list. Caller supplies a timer function.
1633 * Is called from wlc.
1635 * precondition: perimeter lock has been acquired
1637 wl_timer_t *wl_init_timer(struct wl_info *wl, void (*fn) (void *arg), void *arg,
1642 t = kmalloc(sizeof(wl_timer_t), GFP_ATOMIC);
1644 WL_ERROR("wl%d: wl_init_timer: out of memory\n", wl->pub->unit);
1648 memset(t, 0, sizeof(wl_timer_t));
1650 init_timer(&t->timer);
1651 t->timer.data = (unsigned long) t;
1652 t->timer.function = wl_timer;
1656 t->next = wl->timers;
1660 t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1662 strcpy(t->name, name);
1668 /* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
1669 * as well as it's easier to make it periodic
1671 * precondition: perimeter lock has been acquired
1673 void wl_add_timer(struct wl_info *wl, wl_timer_t *t, uint ms, int periodic)
1677 WL_ERROR("%s: Already set. Name: %s, per %d\n",
1678 __func__, t->name, periodic);
1684 t->periodic = (bool) periodic;
1686 t->timer.expires = jiffies + ms * HZ / 1000;
1688 atomic_inc(&wl->callbacks);
1689 add_timer(&t->timer);
1693 * return true if timer successfully deleted, false if still pending
1695 * precondition: perimeter lock has been acquired
1697 bool wl_del_timer(struct wl_info *wl, wl_timer_t *t)
1701 if (!del_timer(&t->timer)) {
1704 atomic_dec(&wl->callbacks);
1711 * precondition: perimeter lock has been acquired
1713 void wl_free_timer(struct wl_info *wl, wl_timer_t *t)
1717 /* delete the timer in case it is active */
1718 wl_del_timer(wl, t);
1720 if (wl->timers == t) {
1721 wl->timers = wl->timers->next;
1733 if (tmp->next == t) {
1734 tmp->next = t->next;
1748 * runs in software irq context
1750 * precondition: perimeter lock is not acquired
1752 static int wl_linux_watchdog(void *ctx)
1754 struct wl_info *wl = (struct wl_info *) ctx;
1756 struct net_device_stats *stats = NULL;
1760 ASSERT(wl->stats_id < 2);
1762 cnt = wl->pub->_cnt;
1763 id = 1 - wl->stats_id;
1764 stats = &wl->stats_watchdog[id];
1765 stats->rx_packets = cnt->rxframe;
1766 stats->tx_packets = cnt->txframe;
1767 stats->rx_bytes = cnt->rxbyte;
1768 stats->tx_bytes = cnt->txbyte;
1769 stats->rx_errors = cnt->rxerror;
1770 stats->tx_errors = cnt->txerror;
1771 stats->collisions = 0;
1773 stats->rx_length_errors = 0;
1774 stats->rx_over_errors = cnt->rxoflo;
1775 stats->rx_crc_errors = cnt->rxcrc;
1776 stats->rx_frame_errors = 0;
1777 stats->rx_fifo_errors = cnt->rxoflo;
1778 stats->rx_missed_errors = 0;
1780 stats->tx_fifo_errors = cnt->txuflo;
1794 char *wl_firmwares[WL_MAX_FW] = {
1800 * precondition: perimeter lock has been acquired
1802 int wl_ucode_init_buf(struct wl_info *wl, void **pbuf, u32 idx)
1806 struct wl_fw_hdr *hdr;
1807 for (i = 0; i < wl->fw.fw_cnt; i++) {
1808 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1809 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1811 if (hdr->idx == idx) {
1812 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1813 *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
1814 if (*pbuf == NULL) {
1815 WL_ERROR("fail to alloc %d bytes\n",
1819 memcpy(*pbuf, pdata, hdr->len);
1824 WL_ERROR("ERROR: ucode buf tag:%d can not be found!\n", idx);
1827 return BCME_NOTFOUND;
1831 * Precondition: Since this function is called in wl_pci_probe() context,
1832 * no locking is required.
1834 int wl_ucode_init_uint(struct wl_info *wl, u32 *data, u32 idx)
1838 struct wl_fw_hdr *hdr;
1839 for (i = 0; i < wl->fw.fw_cnt; i++) {
1840 hdr = (struct wl_fw_hdr *)wl->fw.fw_hdr[i]->data;
1841 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1843 if (hdr->idx == idx) {
1844 pdata = wl->fw.fw_bin[i]->data + hdr->offset;
1845 ASSERT(hdr->len == 4);
1846 *data = *((u32 *) pdata);
1851 WL_ERROR("ERROR: ucode tag:%d can not be found!\n", idx);
1856 * Precondition: Since this function is called in wl_pci_probe() context,
1857 * no locking is required.
1859 static int wl_request_fw(struct wl_info *wl, struct pci_dev *pdev)
1862 struct device *device = &pdev->dev;
1866 memset((void *)&wl->fw, 0, sizeof(struct wl_firmware));
1867 for (i = 0; i < WL_MAX_FW; i++) {
1868 if (wl_firmwares[i] == NULL)
1870 sprintf(fw_name, "%s-%d.fw", wl_firmwares[i],
1871 UCODE_LOADER_API_VER);
1872 WL_NONE("request fw %s\n", fw_name);
1873 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
1875 WL_ERROR("%s: fail to load firmware %s\n",
1876 KBUILD_MODNAME, fw_name);
1879 WL_NONE("request fw %s\n", fw_name);
1880 sprintf(fw_name, "%s_hdr-%d.fw", wl_firmwares[i],
1881 UCODE_LOADER_API_VER);
1882 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
1884 WL_ERROR("%s: fail to load firmware %s\n",
1885 KBUILD_MODNAME, fw_name);
1888 wl->fw.hdr_num_entries[i] =
1889 wl->fw.fw_hdr[i]->size / (sizeof(struct wl_fw_hdr));
1890 WL_NONE("request fw %s find: %d entries\n",
1891 fw_name, wl->fw.hdr_num_entries[i]);
1894 return wl_ucode_data_init(wl);
1898 * precondition: can both be called locked and unlocked
1900 void wl_ucode_free_buf(void *p)
1906 * Precondition: Since this function is called in wl_pci_probe() context,
1907 * no locking is required.
1909 static void wl_release_fw(struct wl_info *wl)
1912 for (i = 0; i < WL_MAX_FW; i++) {
1913 release_firmware(wl->fw.fw_bin[i]);
1914 release_firmware(wl->fw.fw_hdr[i]);
1920 * checks validity of all firmware images loaded from user space
1922 * Precondition: Since this function is called in wl_pci_probe() context,
1923 * no locking is required.
1925 int wl_check_firmwares(struct wl_info *wl)
1930 const struct firmware *fw;
1931 const struct firmware *fw_hdr;
1932 struct wl_fw_hdr *ucode_hdr;
1933 for (i = 0; i < WL_MAX_FW && rc == 0; i++) {
1934 fw = wl->fw.fw_bin[i];
1935 fw_hdr = wl->fw.fw_hdr[i];
1936 if (fw == NULL && fw_hdr == NULL) {
1938 } else if (fw == NULL || fw_hdr == NULL) {
1939 WL_ERROR("%s: invalid bin/hdr fw\n", __func__);
1941 } else if (fw_hdr->size % sizeof(struct wl_fw_hdr)) {
1942 WL_ERROR("%s: non integral fw hdr file size %zu/%zu\n",
1943 __func__, fw_hdr->size,
1944 sizeof(struct wl_fw_hdr));
1946 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
1947 WL_ERROR("%s: out of bounds fw file size %zu\n",
1948 __func__, fw->size);
1951 /* check if ucode section overruns firmware image */
1952 ucode_hdr = (struct wl_fw_hdr *)fw_hdr->data;
1953 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1954 !rc; entry++, ucode_hdr++) {
1955 if (ucode_hdr->offset + ucode_hdr->len >
1957 WL_ERROR("%s: conflicting bin/hdr\n",
1964 if (rc == 0 && wl->fw.fw_cnt != i) {
1965 WL_ERROR("%s: invalid fw_cnt=%d\n", __func__, wl->fw.fw_cnt);
1972 * precondition: perimeter lock has been acquired
1974 bool wl_rfkill_set_hw_state(struct wl_info *wl)
1976 bool blocked = wlc_check_radio_disabled(wl->wlc);
1978 WL_NONE("%s: update hw state: blocked=%s\n", __func__,
1979 blocked ? "true" : "false");
1981 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1983 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);