Release 4.7 drivers/net/wireless/ti/wlcore/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 "wlcore.h"
#include "debug.h"
#include "io.h"
#include "event.h"
#include "ps.h"
#include "scan.h"
#include "wl12xx_80211.h"
#include "hw_ops.h"
#define WL18XX_LOGGER_SDIO_BUFF_MAX	(0x1020)
#define WL18XX_DATA_RAM_BASE_ADDRESS	(0x20000000)
#define WL18XX_LOGGER_SDIO_BUFF_ADDR	(0x40159c)
#define WL18XX_LOGGER_BUFF_OFFSET	(sizeof(struct fw_logger_information))
#define WL18XX_LOGGER_READ_POINT_OFFSET		(12)
int wlcore_event_fw_logger(struct wl1271 *wl)
{
	int ret;
	struct fw_logger_information fw_log;
	u8  *buffer;
	u32 internal_fw_addrbase = WL18XX_DATA_RAM_BASE_ADDRESS;
	u32 addr = WL18XX_LOGGER_SDIO_BUFF_ADDR;
	u32 end_buff_addr = WL18XX_LOGGER_SDIO_BUFF_ADDR +
				WL18XX_LOGGER_BUFF_OFFSET;
	u32 available_len;
	u32 actual_len;
	u32 clear_addr;
	size_t len;
	u32 start_loc;
	buffer = kzalloc(WL18XX_LOGGER_SDIO_BUFF_MAX, GFP_KERNEL);
	if (!buffer) {
		wl1271_error("Fail to allocate fw logger memory");
		fw_log.actual_buff_size = cpu_to_le32(0);
		goto out;
	}
	ret = wlcore_read(wl, addr, buffer, WL18XX_LOGGER_SDIO_BUFF_MAX,
			  false);
	if (ret < 0) {
		wl1271_error("Fail to read logger buffer, error_id = %d",
			     ret);
		fw_log.actual_buff_size = cpu_to_le32(0);
		goto free_out;
	}
	memcpy(&fw_log, buffer, sizeof(fw_log));
	if (le32_to_cpu(fw_log.actual_buff_size) == 0)
		goto free_out;
	actual_len = le32_to_cpu(fw_log.actual_buff_size);
	start_loc = (le32_to_cpu(fw_log.buff_read_ptr) -
			internal_fw_addrbase) - addr;
	end_buff_addr += le32_to_cpu(fw_log.max_buff_size);
	available_len = end_buff_addr -
			(le32_to_cpu(fw_log.buff_read_ptr) -
				 internal_fw_addrbase);
	actual_len = min(actual_len, available_len);
	len = actual_len;
	wl12xx_copy_fwlog(wl, &buffer[start_loc], len);
	clear_addr = addr + start_loc + le32_to_cpu(fw_log.actual_buff_size) +
			internal_fw_addrbase;
	len = le32_to_cpu(fw_log.actual_buff_size) - len;
	if (len) {
		wl12xx_copy_fwlog(wl,
				  &buffer[WL18XX_LOGGER_BUFF_OFFSET],
				  len);
		clear_addr = addr + WL18XX_LOGGER_BUFF_OFFSET + len +
				internal_fw_addrbase;
	}
	/* double check that clear address and write pointer are the same */
	if (clear_addr != le32_to_cpu(fw_log.buff_write_ptr)) {
		wl1271_error("Calculate of clear addr Clear = %x, write = %x",
			     clear_addr, le32_to_cpu(fw_log.buff_write_ptr));
	}
	/* indicate FW about Clear buffer */
	ret = wlcore_write32(wl, addr + WL18XX_LOGGER_READ_POINT_OFFSET,
			     fw_log.buff_write_ptr);
free_out:
	kfree(buffer);
out:
	return le32_to_cpu(fw_log.actual_buff_size);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| shahar patury | shahar patury | 344 | 99.71% | 1 | 50.00% | 
| andrzej hajda | andrzej hajda | 1 | 0.29% | 1 | 50.00% | 
 | Total | 345 | 100.00% | 2 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_fw_logger);
void wlcore_event_rssi_trigger(struct wl1271 *wl, s8 *metric_arr)
{
	struct wl12xx_vif *wlvif;
	struct ieee80211_vif *vif;
	enum nl80211_cqm_rssi_threshold_event event;
	s8 metric = metric_arr[0];
	wl1271_debug(DEBUG_EVENT, "RSSI trigger metric: %d", metric);
	/* TODO: check actual multi-role support */
	wl12xx_for_each_wlvif_sta(wl, wlvif) {
		if (metric <= wlvif->rssi_thold)
			event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
		else
			event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
		vif = wl12xx_wlvif_to_vif(wlvif);
		if (event != wlvif->last_rssi_event)
			ieee80211_cqm_rssi_notify(vif, event, GFP_KERNEL);
		wlvif->last_rssi_event = event;
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| juuso oikarinen | juuso oikarinen | 66 | 65.35% | 1 | 25.00% | 
| eliad peller | eliad peller | 35 | 34.65% | 3 | 75.00% | 
 | Total | 101 | 100.00% | 4 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_rssi_trigger);
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) {
		u8 hlid = wlvif->sta.hlid;
		if (!wl->links[hlid].ba_bitmap)
			return;
		ieee80211_stop_rx_ba_session(vif, wl->links[hlid].ba_bitmap,
					     vif->bss_conf.bssid);
	} else {
		u8 hlid;
		struct wl1271_link *lnk;
		for_each_set_bit(hlid, wlvif->ap.sta_hlid_map,
				 wl->num_links) {
			lnk = &wl->links[hlid];
			if (!lnk->ba_bitmap)
				continue;
			ieee80211_stop_rx_ba_session(vif,
						     lnk->ba_bitmap,
						     lnk->addr);
		}
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| arik nemtsov | arik nemtsov | 70 | 53.85% | 2 | 22.22% | 
| eliad peller | eliad peller | 33 | 25.38% | 6 | 66.67% | 
| shahar levi | shahar levi | 27 | 20.77% | 1 | 11.11% | 
 | Total | 130 | 100.00% | 9 | 100.00% | 
void wlcore_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);
		}
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 62 | 100.00% | 4 | 100.00% | 
 | Total | 62 | 100.00% | 4 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_soft_gemini_sense);
void wlcore_event_sched_scan_completed(struct wl1271 *wl,
				       u8 status)
{
	wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT (status 0x%0x)",
		     status);
	if (wl->sched_vif) {
		ieee80211_sched_scan_stopped(wl->hw);
		wl->sched_vif = NULL;
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 21 | 48.84% | 3 | 50.00% | 
| luciano coelho | luciano coelho | 20 | 46.51% | 2 | 33.33% | 
| mircea gherzan | mircea gherzan | 2 | 4.65% | 1 | 16.67% | 
 | Total | 43 | 100.00% | 6 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_sched_scan_completed);
void wlcore_event_ba_rx_constraint(struct wl1271 *wl,
				   unsigned long roles_bitmap,
				   unsigned long allowed_bitmap)
{
	struct wl12xx_vif *wlvif;
	wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx allowed=0x%lx",
		     __func__, roles_bitmap, allowed_bitmap);
	wl12xx_for_each_wlvif(wl, wlvif) {
		if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
		    !test_bit(wlvif->role_id , &roles_bitmap))
			continue;
		wlvif->ba_allowed = !!test_bit(wlvif->role_id,
					       &allowed_bitmap);
		if (!wlvif->ba_allowed)
			wl1271_stop_ba_event(wl, wlvif);
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 66 | 70.21% | 1 | 33.33% | 
| luciano coelho | luciano coelho | 28 | 29.79% | 2 | 66.67% | 
 | Total | 94 | 100.00% | 3 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_ba_rx_constraint);
void wlcore_event_channel_switch(struct wl1271 *wl,
				 unsigned long roles_bitmap,
				 bool success)
{
	struct wl12xx_vif *wlvif;
	struct ieee80211_vif *vif;
	wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx success=%d",
		     __func__, roles_bitmap, success);
	wl12xx_for_each_wlvif(wl, wlvif) {
		if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
		    !test_bit(wlvif->role_id , &roles_bitmap))
			continue;
		if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS,
					&wlvif->flags))
			continue;
		vif = wl12xx_wlvif_to_vif(wlvif);
		if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
			ieee80211_chswitch_done(vif, success);
			cancel_delayed_work(&wlvif->channel_switch_work);
		} else {
			set_bit(WLVIF_FLAG_BEACON_DISABLED, &wlvif->flags);
			ieee80211_csa_finish(vif);
		}
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 104 | 78.79% | 7 | 46.67% | 
| shahar levi | shahar levi | 13 | 9.85% | 3 | 20.00% | 
| luciano coelho | luciano coelho | 7 | 5.30% | 1 | 6.67% | 
| arik nemtsov | arik nemtsov | 6 | 4.55% | 2 | 13.33% | 
| bartosz markowski | bartosz markowski | 1 | 0.76% | 1 | 6.67% | 
| victor goldenshtein | victor goldenshtein | 1 | 0.76% | 1 | 6.67% | 
 | Total | 132 | 100.00% | 15 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_channel_switch);
void wlcore_event_dummy_packet(struct wl1271 *wl)
{
	if (wl->plt) {
		wl1271_info("Got DUMMY_PACKET event in PLT mode.  FW bug, ignoring.");
		return;
	}
	wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
	wl1271_tx_dummy_packet(wl);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 22 | 61.11% | 2 | 66.67% | 
| luciano coelho | luciano coelho | 14 | 38.89% | 1 | 33.33% | 
 | Total | 36 | 100.00% | 3 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_dummy_packet);
static void wlcore_disconnect_sta(struct wl1271 *wl, unsigned long sta_bitmap)
{
	u32 num_packets = wl->conf.tx.max_tx_retries;
	struct wl12xx_vif *wlvif;
	struct ieee80211_vif *vif;
	struct ieee80211_sta *sta;
	const u8 *addr;
	int h;
	for_each_set_bit(h, &sta_bitmap, wl->num_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();
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| arik nemtsov | arik nemtsov | 88 | 57.14% | 1 | 20.00% | 
| eliad peller | eliad peller | 66 | 42.86% | 4 | 80.00% | 
 | Total | 154 | 100.00% | 5 | 100.00% | 
void wlcore_event_max_tx_failure(struct wl1271 *wl, unsigned long sta_bitmap)
{
	wl1271_debug(DEBUG_EVENT, "MAX_TX_FAILURE_EVENT_ID");
	wlcore_disconnect_sta(wl, sta_bitmap);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 28 | 100.00% | 1 | 100.00% | 
 | Total | 28 | 100.00% | 1 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_max_tx_failure);
void wlcore_event_inactive_sta(struct wl1271 *wl, unsigned long sta_bitmap)
{
	wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID");
	wlcore_disconnect_sta(wl, sta_bitmap);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 28 | 100.00% | 1 | 100.00% | 
 | Total | 28 | 100.00% | 1 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_inactive_sta);
void wlcore_event_roc_complete(struct wl1271 *wl)
{
	wl1271_debug(DEBUG_EVENT, "REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID");
	if (wl->roc_vif)
		ieee80211_ready_on_channel(wl->hw);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 30 | 100.00% | 1 | 100.00% | 
 | Total | 30 | 100.00% | 1 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_roc_complete);
void wlcore_event_beacon_loss(struct wl1271 *wl, unsigned long roles_bitmap)
{
	/*
         * We are HW_MONITOR device. On beacon loss - queue
         * connection loss work. Cancel it on REGAINED event.
         */
	struct wl12xx_vif *wlvif;
	struct ieee80211_vif *vif;
	int delay = wl->conf.conn.synch_fail_thold *
				wl->conf.conn.bss_lose_timeout;
	wl1271_info("Beacon loss detected. roles:0x%lx", roles_bitmap);
	wl12xx_for_each_wlvif_sta(wl, wlvif) {
		if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
		    !test_bit(wlvif->role_id , &roles_bitmap))
			continue;
		vif = wl12xx_wlvif_to_vif(wlvif);
		/* don't attempt roaming in case of p2p */
		if (wlvif->p2p) {
			ieee80211_connection_loss(vif);
			continue;
		}
		/*
                 * if the work is already queued, it should take place.
                 * We don't want to delay the connection loss
                 * indication any more.
                 */
		ieee80211_queue_delayed_work(wl->hw,
					     &wlvif->connection_loss_work,
					     msecs_to_jiffies(delay));
		ieee80211_cqm_beacon_loss_notify(vif, GFP_KERNEL);
	}
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 102 | 80.95% | 1 | 25.00% | 
| eyal shapira | eyal shapira | 22 | 17.46% | 1 | 25.00% | 
| johannes berg | johannes berg | 1 | 0.79% | 1 | 25.00% | 
| luciano coelho | luciano coelho | 1 | 0.79% | 1 | 25.00% | 
 | Total | 126 | 100.00% | 4 | 100.00% | 
EXPORT_SYMBOL_GPL(wlcore_event_beacon_loss);
int wl1271_event_unmask(struct wl1271 *wl)
{
	int ret;
	wl1271_debug(DEBUG_EVENT, "unmasking event_mask 0x%x", wl->event_mask);
	ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
	if (ret < 0)
		return ret;
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| luciano coelho | luciano coelho | 39 | 78.00% | 1 | 50.00% | 
| eliad peller | eliad peller | 11 | 22.00% | 1 | 50.00% | 
 | Total | 50 | 100.00% | 2 | 100.00% | 
int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
{
	int ret;
	wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
	if (mbox_num > 1)
		return -EINVAL;
	/* first we read the mbox descriptor */
	ret = wlcore_read(wl, wl->mbox_ptr[mbox_num], wl->mbox,
			  wl->mbox_size, false);
	if (ret < 0)
		return ret;
	/* process the descriptor */
	ret = wl->ops->process_mailbox_events(wl);
	if (ret < 0)
		return ret;
	/*
         * TODO: we just need this because one bit is in a different
         * place.  Is there any better way?
         */
	ret = wl->ops->ack_event(wl);
	return ret;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| luciano coelho | luciano coelho | 78 | 74.29% | 2 | 28.57% | 
| ido yariv | ido yariv | 15 | 14.29% | 2 | 28.57% | 
| eliad peller | eliad peller | 6 | 5.71% | 1 | 14.29% | 
| mircea gherzan | mircea gherzan | 4 | 3.81% | 1 | 14.29% | 
| juuso oikarinen | juuso oikarinen | 2 | 1.90% | 1 | 14.29% | 
 | Total | 105 | 100.00% | 7 | 100.00% | 
Overall Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| eliad peller | eliad peller | 657 | 42.01% | 18 | 37.50% | 
| shahar patury | shahar patury | 372 | 23.79% | 1 | 2.08% | 
| luciano coelho | luciano coelho | 201 | 12.85% | 9 | 18.75% | 
| arik nemtsov | arik nemtsov | 167 | 10.68% | 3 | 6.25% | 
| juuso oikarinen | juuso oikarinen | 74 | 4.73% | 4 | 8.33% | 
| shahar levi | shahar levi | 44 | 2.81% | 4 | 8.33% | 
| eyal shapira | eyal shapira | 22 | 1.41% | 1 | 2.08% | 
| ido yariv | ido yariv | 15 | 0.96% | 2 | 4.17% | 
| mircea gherzan | mircea gherzan | 6 | 0.38% | 1 | 2.08% | 
| teemu paasikivi | teemu paasikivi | 2 | 0.13% | 1 | 2.08% | 
| bartosz markowski | bartosz markowski | 1 | 0.06% | 1 | 2.08% | 
| victor goldenshtein | victor goldenshtein | 1 | 0.06% | 1 | 2.08% | 
| johannes berg | johannes berg | 1 | 0.06% | 1 | 2.08% | 
| andrzej hajda | andrzej hajda | 1 | 0.06% | 1 | 2.08% | 
 | Total | 1564 | 100.00% | 48 | 100.00% | 
  
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