[deliverable/linux.git] / drivers / net / wireless / wl12xx / event.c

/*
 * This file is part of wl1271
 *
 * Copyright (C) 2008-2009 Nokia Corporation
 *
 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include "wl12xx.h"
#include "debug.h"
#include "reg.h"
#include "io.h"
#include "event.h"
#include "ps.h"
#include "scan.h"
#include "wl12xx_80211.h"

static void wl1271_event_rssi_trigger(struct wl1271 *wl,
				      struct wl12xx_vif *wlvif,
				      struct event_mailbox *mbox)
{
	struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
	enum nl80211_cqm_rssi_threshold_event event;
	s8 metric = mbox->rssi_snr_trigger_metric[0];

	wl1271_debug(DEBUG_EVENT, "RSSI trigger metric: %d", metric);

	if (metric <= wlvif->rssi_thold)
		event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
	else
		event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;

	if (event != wlvif->last_rssi_event)
		ieee80211_cqm_rssi_notify(vif, event, GFP_KERNEL);
	wlvif->last_rssi_event = event;
}

static void wl1271_stop_ba_event(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
	struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);

	if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
		if (!wlvif->sta.ba_rx_bitmap)
			return;
		ieee80211_stop_rx_ba_session(vif, wlvif->sta.ba_rx_bitmap,
					     vif->bss_conf.bssid);
	} else {
		u8 hlid;
		struct wl1271_link *lnk;
		for_each_set_bit(hlid, wlvif->ap.sta_hlid_map,
				 WL12XX_MAX_LINKS) {
			lnk = &wl->links[hlid];
			if (!lnk->ba_bitmap)
				continue;

			ieee80211_stop_rx_ba_session(vif,
						     lnk->ba_bitmap,
						     lnk->addr);
		}
	}
}

static void wl12xx_event_soft_gemini_sense(struct wl1271 *wl,
					       u8 enable)
{
	struct wl12xx_vif *wlvif;

	if (enable) {
		set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
	} else {
		clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
		wl12xx_for_each_wlvif_sta(wl, wlvif) {
			wl1271_recalc_rx_streaming(wl, wlvif);
		}
	}

}

static void wl1271_event_mbox_dump(struct event_mailbox *mbox)
{
	wl1271_debug(DEBUG_EVENT, "MBOX DUMP:");
	wl1271_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector);
	wl1271_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask);
}

static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
{
	struct ieee80211_vif *vif;
	struct wl12xx_vif *wlvif;
	u32 vector;
	bool beacon_loss = false;
	bool disconnect_sta = false;
	unsigned long sta_bitmap = 0;

	wl1271_event_mbox_dump(mbox);

	vector = le32_to_cpu(mbox->events_vector);
	vector &= ~(le32_to_cpu(mbox->events_mask));
	wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector);

	if (vector & SCAN_COMPLETE_EVENT_ID) {
		wl1271_debug(DEBUG_EVENT, "status: 0x%x",
			     mbox->scheduled_scan_status);

		wl1271_scan_stm(wl, wl->scan_vif);
	}

	if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
		wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_REPORT_EVENT "
			     "(status 0x%0x)", mbox->scheduled_scan_status);

		wl1271_scan_sched_scan_results(wl);
	}

	if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID) {
		wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT "
			     "(status 0x%0x)", mbox->scheduled_scan_status);
		if (wl->sched_scanning) {
			ieee80211_sched_scan_stopped(wl->hw);
			wl->sched_scanning = false;
		}
	}

	if (vector & SOFT_GEMINI_SENSE_EVENT_ID)
		wl12xx_event_soft_gemini_sense(wl,
					       mbox->soft_gemini_sense_info);

	/*
	 * The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon
	 * filtering) is enabled. Without PSM, the stack will receive all
	 * beacons and can detect beacon loss by itself.
	 *
	 * As there's possibility that the driver disables PSM before receiving
	 * BSS_LOSE_EVENT, beacon loss has to be reported to the stack.
	 *
	 */
	if (vector & BSS_LOSE_EVENT_ID) {
		/* TODO: check for multi-role */
		wl1271_info("Beacon loss detected.");

		/* indicate to the stack, that beacons have been lost */
		beacon_loss = true;
	}

	if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID) {
		/* TODO: check actual multi-role support */
		wl1271_debug(DEBUG_EVENT, "RSSI_SNR_TRIGGER_0_EVENT");
		wl12xx_for_each_wlvif_sta(wl, wlvif) {
			wl1271_event_rssi_trigger(wl, wlvif, mbox);
		}
	}

	if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID) {
		u8 role_id = mbox->role_id;
		wl1271_debug(DEBUG_EVENT, "BA_SESSION_RX_CONSTRAINT_EVENT_ID. "
			     "ba_allowed = 0x%x, role_id=%d",
			     mbox->rx_ba_allowed, role_id);

		wl12xx_for_each_wlvif(wl, wlvif) {
			if (role_id != 0xff && role_id != wlvif->role_id)
				continue;

			wlvif->ba_allowed = !!mbox->rx_ba_allowed;
			if (!wlvif->ba_allowed)
				wl1271_stop_ba_event(wl, wlvif);
		}
	}

	if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID) {
		wl1271_debug(DEBUG_EVENT, "CHANNEL_SWITCH_COMPLETE_EVENT_ID. "
					  "status = 0x%x",
					  mbox->channel_switch_status);
		/*
		 * That event uses for two cases:
		 * 1) channel switch complete with status=0
		 * 2) channel switch failed status=1
		 */

		/* TODO: configure only the relevant vif */
		wl12xx_for_each_wlvif_sta(wl, wlvif) {
			bool success;

			if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS,
						&wl->flags))
				continue;

			success = mbox->channel_switch_status ? false : true;
			vif = wl12xx_wlvif_to_vif(wlvif);

			ieee80211_chswitch_done(vif, success);
		}
	}

	if ((vector & DUMMY_PACKET_EVENT_ID)) {
		wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
		wl1271_tx_dummy_packet(wl);
	}

	/*
	 * "TX retries exceeded" has a different meaning according to mode.
	 * In AP mode the offending station is disconnected.
	 */
	if (vector & MAX_TX_RETRY_EVENT_ID) {
		wl1271_debug(DEBUG_EVENT, "MAX_TX_RETRY_EVENT_ID");
		sta_bitmap |= le16_to_cpu(mbox->sta_tx_retry_exceeded);
		disconnect_sta = true;
	}

	if (vector & INACTIVE_STA_EVENT_ID) {
		wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID");
		sta_bitmap |= le16_to_cpu(mbox->sta_aging_status);
		disconnect_sta = true;
	}

	if (disconnect_sta) {
		u32 num_packets = wl->conf.tx.max_tx_retries;
		struct ieee80211_sta *sta;
		const u8 *addr;
		int h;

		for_each_set_bit(h, &sta_bitmap, WL12XX_MAX_LINKS) {
			bool found = false;
			/* find the ap vif connected to this sta */
			wl12xx_for_each_wlvif_ap(wl, wlvif) {
				if (!test_bit(h, wlvif->ap.sta_hlid_map))
					continue;
				found = true;
				break;
			}
			if (!found)
				continue;

			vif = wl12xx_wlvif_to_vif(wlvif);
			addr = wl->links[h].addr;

			rcu_read_lock();
			sta = ieee80211_find_sta(vif, addr);
			if (sta) {
				wl1271_debug(DEBUG_EVENT, "remove sta %d", h);
				ieee80211_report_low_ack(sta, num_packets);
			}
			rcu_read_unlock();
		}
	}

	if (beacon_loss)
		wl12xx_for_each_wlvif_sta(wl, wlvif) {
			vif = wl12xx_wlvif_to_vif(wlvif);
			ieee80211_connection_loss(vif);
		}

	return 0;
}

int wl1271_event_unmask(struct wl1271 *wl)
{
	int ret;

	ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
	if (ret < 0)
		return ret;

	return 0;
}

void wl1271_event_mbox_config(struct wl1271 *wl)
{
	wl->mbox_ptr[0] = wl1271_read32(wl, REG_EVENT_MAILBOX_PTR);
	wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);

	wl1271_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
		     wl->mbox_ptr[0], wl->mbox_ptr[1]);
}

int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
{
	struct event_mailbox mbox;
	int ret;

	wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);

	if (mbox_num > 1)
		return -EINVAL;

	/* first we read the mbox descriptor */
	wl1271_read(wl, wl->mbox_ptr[mbox_num], &mbox,
		    sizeof(struct event_mailbox), false);

	/* process the descriptor */
	ret = wl1271_event_process(wl, &mbox);
	if (ret < 0)
		return ret;

	/* then we let the firmware know it can go on...*/
	wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);

	return 0;
}
Commit	Line	Data
f5fc0f86 LC	1	/*
	2	* This file is part of wl1271
	3	*
	4	* Copyright (C) 2008-2009 Nokia Corporation
	5	*
	6	* Contact: Luciano Coelho <luciano.coelho@nokia.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* version 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	20	* 02110-1301 USA
	21	*
	22	*/
	23
00d20100	24	#include "wl12xx.h"
0f4e3122	25	#include "debug.h"
00d20100 SL	26	#include "reg.h"
	27	#include "io.h"
	28	#include "event.h"
	29	#include "ps.h"
	30	#include "scan.h"
66497dc3	31	#include "wl12xx_80211.h"
f5fc0f86	32
00236aed	33	static void wl1271_event_rssi_trigger(struct wl1271 *wl,
4b730b6a	34	struct wl12xx_vif *wlvif,
00236aed JO	35	struct event_mailbox *mbox)
00236aed JO	36	{
4b730b6a	37	struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
00236aed JO	38	enum nl80211_cqm_rssi_threshold_event event;
	39	s8 metric = mbox->rssi_snr_trigger_metric[0];
	40
	41	wl1271_debug(DEBUG_EVENT, "RSSI trigger metric: %d", metric);
	42
04324d99	43	if (metric <= wlvif->rssi_thold)
00236aed JO	44	event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
	45	else
	46	event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
	47
04324d99 EP	48	if (event != wlvif->last_rssi_event)
	49	ieee80211_cqm_rssi_notify(vif, event, GFP_KERNEL);
	50	wlvif->last_rssi_event = event;
00236aed JO	51	}
00236aed JO	52
536129c8	53	static void wl1271_stop_ba_event(struct wl1271 wl, struct wl12xx_vif wlvif)
70559a06	54	{
4b730b6a EP	55	struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
4b730b6a EP	56
536129c8	57	if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
d0802abd	58	if (!wlvif->sta.ba_rx_bitmap)
f4d3b6ab	59	return;
4b730b6a EP	60	ieee80211_stop_rx_ba_session(vif, wlvif->sta.ba_rx_bitmap,
4b730b6a EP	61	vif->bss_conf.bssid);
f4d3b6ab	62	} else {
c7ffb902	63	u8 hlid;
f4d3b6ab	64	struct wl1271_link *lnk;
c7ffb902 EP	65	for_each_set_bit(hlid, wlvif->ap.sta_hlid_map,
	66	WL12XX_MAX_LINKS) {
	67	lnk = &wl->links[hlid];
	68	if (!lnk->ba_bitmap)
f4d3b6ab AN	69	continue;
f4d3b6ab AN	70
4b730b6a	71	ieee80211_stop_rx_ba_session(vif,
f4d3b6ab AN	72	lnk->ba_bitmap,
	73	lnk->addr);
	74	}
	75	}
70559a06 SL	76	}
70559a06 SL	77
77ddaa10 EP	78	static void wl12xx_event_soft_gemini_sense(struct wl1271 *wl,
	79	u8 enable)
	80	{
4b730b6a EP	81	struct wl12xx_vif *wlvif;
4b730b6a EP	82
77ddaa10	83	if (enable) {
77ddaa10 EP	84	set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
77ddaa10 EP	85	} else {
9eb599e9	86	clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
4b730b6a	87	wl12xx_for_each_wlvif_sta(wl, wlvif) {
9eb599e9	88	wl1271_recalc_rx_streaming(wl, wlvif);
4b730b6a	89	}
77ddaa10 EP	90	}
	91
	92	}
	93
f5fc0f86 LC	94	static void wl1271_event_mbox_dump(struct event_mailbox *mbox)
	95	{
	96	wl1271_debug(DEBUG_EVENT, "MBOX DUMP:");
	97	wl1271_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector);
	98	wl1271_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask);
	99	}
	100
	101	static int wl1271_event_process(struct wl1271 wl, struct event_mailbox mbox)
	102	{
4b730b6a EP	103	struct ieee80211_vif *vif;
4b730b6a EP	104	struct wl12xx_vif *wlvif;
f5fc0f86	105	u32 vector;
19ad0715	106	bool beacon_loss = false;
3618f30f AN	107	bool disconnect_sta = false;
3618f30f AN	108	unsigned long sta_bitmap = 0;
f5fc0f86 LC	109
	110	wl1271_event_mbox_dump(mbox);
	111
d0f63b20 LC	112	vector = le32_to_cpu(mbox->events_vector);
d0f63b20 LC	113	vector &= ~(le32_to_cpu(mbox->events_mask));
f5fc0f86 LC	114	wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector);
	115
	116	if (vector & SCAN_COMPLETE_EVENT_ID) {
34dd2aaa LC	117	wl1271_debug(DEBUG_EVENT, "status: 0x%x",
	118	mbox->scheduled_scan_status);
	119
784f694d	120	wl1271_scan_stm(wl, wl->scan_vif);
f5fc0f86 LC	121	}
f5fc0f86 LC	122
6394c01b LC	123	if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
	124	wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_REPORT_EVENT "
	125	"(status 0x%0x)", mbox->scheduled_scan_status);
33c2c06c LC	126
33c2c06c LC	127	wl1271_scan_sched_scan_results(wl);
6394c01b LC	128	}
	129
	130	if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID) {
	131	wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT "
	132	"(status 0x%0x)", mbox->scheduled_scan_status);
33c2c06c	133	if (wl->sched_scanning) {
33c2c06c	134	ieee80211_sched_scan_stopped(wl->hw);
ee91d185	135	wl->sched_scanning = false;
33c2c06c	136	}
6394c01b LC	137	}
6394c01b LC	138
4b730b6a	139	if (vector & SOFT_GEMINI_SENSE_EVENT_ID)
77ddaa10 EP	140	wl12xx_event_soft_gemini_sense(wl,
77ddaa10 EP	141	mbox->soft_gemini_sense_info);
8d2ef7bd	142
b771eee5 JO	143	/*
	144	* The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon
	145	* filtering) is enabled. Without PSM, the stack will receive all
	146	* beacons and can detect beacon loss by itself.
64e29e44 TP	147	*
	148	* As there's possibility that the driver disables PSM before receiving
	149	* BSS_LOSE_EVENT, beacon loss has to be reported to the stack.
	150	*
b771eee5	151	*/
4b730b6a EP	152	if (vector & BSS_LOSE_EVENT_ID) {
4b730b6a EP	153	/* TODO: check for multi-role */
1a186a51	154	wl1271_info("Beacon loss detected.");
f5fc0f86	155
b771eee5	156	/* indicate to the stack, that beacons have been lost */
19ad0715 JO	157	beacon_loss = true;
	158	}
	159
00236aed	160	if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID) {
4b730b6a	161	/* TODO: check actual multi-role support */
00236aed	162	wl1271_debug(DEBUG_EVENT, "RSSI_SNR_TRIGGER_0_EVENT");
4b730b6a EP	163	wl12xx_for_each_wlvif_sta(wl, wlvif) {
	164	wl1271_event_rssi_trigger(wl, wlvif, mbox);
	165	}
00236aed JO	166	}
00236aed JO	167
4b730b6a EP	168	if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID) {
4b730b6a EP	169	u8 role_id = mbox->role_id;
70559a06	170	wl1271_debug(DEBUG_EVENT, "BA_SESSION_RX_CONSTRAINT_EVENT_ID. "
4b730b6a EP	171	"ba_allowed = 0x%x, role_id=%d",
4b730b6a EP	172	mbox->rx_ba_allowed, role_id);
70559a06	173
4b730b6a EP	174	wl12xx_for_each_wlvif(wl, wlvif) {
	175	if (role_id != 0xff && role_id != wlvif->role_id)
	176	continue;
f4d3b6ab	177
4b730b6a EP	178	wlvif->ba_allowed = !!mbox->rx_ba_allowed;
	179	if (!wlvif->ba_allowed)
	180	wl1271_stop_ba_event(wl, wlvif);
	181	}
70559a06 SL	182	}
70559a06 SL	183
4b730b6a	184	if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID) {
6d158ff3 SL	185	wl1271_debug(DEBUG_EVENT, "CHANNEL_SWITCH_COMPLETE_EVENT_ID. "
	186	"status = 0x%x",
	187	mbox->channel_switch_status);
	188	/*
	189	* That event uses for two cases:
	190	* 1) channel switch complete with status=0
	191	* 2) channel switch failed status=1
	192	*/
52630c5d EP	193
	194	/* TODO: configure only the relevant vif */
	195	wl12xx_for_each_wlvif_sta(wl, wlvif) {
52630c5d EP	196	bool success;
	197
	198	if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS,
	199	&wl->flags))
	200	continue;
	201
	202	success = mbox->channel_switch_status ? false : true;
775e1a4b LC	203	vif = wl12xx_wlvif_to_vif(wlvif);
775e1a4b LC	204
52630c5d	205	ieee80211_chswitch_done(vif, success);
4b730b6a	206	}
6d158ff3 SL	207	}
6d158ff3 SL	208
79ebec76	209	if ((vector & DUMMY_PACKET_EVENT_ID)) {
ae47c45f	210	wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
4b730b6a	211	wl1271_tx_dummy_packet(wl);
ae47c45f SL	212	}
ae47c45f SL	213
3618f30f AN	214	/*
	215	* "TX retries exceeded" has a different meaning according to mode.
	216	* In AP mode the offending station is disconnected.
	217	*/
4b730b6a	218	if (vector & MAX_TX_RETRY_EVENT_ID) {
3618f30f AN	219	wl1271_debug(DEBUG_EVENT, "MAX_TX_RETRY_EVENT_ID");
	220	sta_bitmap \|= le16_to_cpu(mbox->sta_tx_retry_exceeded);
	221	disconnect_sta = true;
	222	}
	223
4b730b6a	224	if (vector & INACTIVE_STA_EVENT_ID) {
3618f30f AN	225	wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID");
	226	sta_bitmap \|= le16_to_cpu(mbox->sta_aging_status);
	227	disconnect_sta = true;
	228	}
	229
4b730b6a	230	if (disconnect_sta) {
3618f30f AN	231	u32 num_packets = wl->conf.tx.max_tx_retries;
	232	struct ieee80211_sta *sta;
	233	const u8 *addr;
	234	int h;
	235
c7ffb902	236	for_each_set_bit(h, &sta_bitmap, WL12XX_MAX_LINKS) {
4b730b6a EP	237	bool found = false;
	238	/* find the ap vif connected to this sta */
	239	wl12xx_for_each_wlvif_ap(wl, wlvif) {
	240	if (!test_bit(h, wlvif->ap.sta_hlid_map))
	241	continue;
	242	found = true;
	243	break;
	244	}
	245	if (!found)
3618f30f AN	246	continue;
3618f30f AN	247
4b730b6a	248	vif = wl12xx_wlvif_to_vif(wlvif);
3618f30f AN	249	addr = wl->links[h].addr;
	250
	251	rcu_read_lock();
4b730b6a	252	sta = ieee80211_find_sta(vif, addr);
3618f30f AN	253	if (sta) {
	254	wl1271_debug(DEBUG_EVENT, "remove sta %d", h);
	255	ieee80211_report_low_ack(sta, num_packets);
	256	}
	257	rcu_read_unlock();
	258	}
	259	}
	260
4b730b6a EP	261	if (beacon_loss)
	262	wl12xx_for_each_wlvif_sta(wl, wlvif) {
	263	vif = wl12xx_wlvif_to_vif(wlvif);
	264	ieee80211_connection_loss(vif);
	265	}
f5fc0f86 LC	266
	267	return 0;
	268	}
	269
	270	int wl1271_event_unmask(struct wl1271 *wl)
	271	{
	272	int ret;
	273
	274	ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
	275	if (ret < 0)
	276	return ret;
	277
	278	return 0;
	279	}
	280
	281	void wl1271_event_mbox_config(struct wl1271 *wl)
	282	{
7b048c52	283	wl->mbox_ptr[0] = wl1271_read32(wl, REG_EVENT_MAILBOX_PTR);
f5fc0f86 LC	284	wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);
	285
	286	wl1271_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
	287	wl->mbox_ptr[0], wl->mbox_ptr[1]);
	288	}
	289
13f2dc52	290	int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
f5fc0f86 LC	291	{
	292	struct event_mailbox mbox;
	293	int ret;
	294
	295	wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
	296
	297	if (mbox_num > 1)
	298	return -EINVAL;
	299
	300	/* first we read the mbox descriptor */
7b048c52 TP	301	wl1271_read(wl, wl->mbox_ptr[mbox_num], &mbox,
7b048c52 TP	302	sizeof(struct event_mailbox), false);
f5fc0f86 LC	303
	304	/* process the descriptor */
	305	ret = wl1271_event_process(wl, &mbox);
	306	if (ret < 0)
	307	return ret;
	308
	309	/* then we let the firmware know it can go on...*/
7b048c52	310	wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);
f5fc0f86 LC	311
	312	return 0;
	313	}