393 lines
10 KiB
C
393 lines
10 KiB
C
/*
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* This file is part of wl1271
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*
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* Copyright (C) 2008-2009 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include "wlcore.h"
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#include "debug.h"
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#include "io.h"
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#include "event.h"
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#include "ps.h"
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#include "scan.h"
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#include "wl12xx_80211.h"
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#include "hw_ops.h"
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#define WL18XX_LOGGER_SDIO_BUFF_MAX (0x1020)
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#define WL18XX_DATA_RAM_BASE_ADDRESS (0x20000000)
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#define WL18XX_LOGGER_SDIO_BUFF_ADDR (0x40159c)
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#define WL18XX_LOGGER_BUFF_OFFSET (sizeof(struct fw_logger_information))
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#define WL18XX_LOGGER_READ_POINT_OFFSET (12)
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int wlcore_event_fw_logger(struct wl1271 *wl)
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{
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int ret;
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struct fw_logger_information fw_log;
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u8 *buffer;
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u32 internal_fw_addrbase = WL18XX_DATA_RAM_BASE_ADDRESS;
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u32 addr = WL18XX_LOGGER_SDIO_BUFF_ADDR;
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u32 end_buff_addr = WL18XX_LOGGER_SDIO_BUFF_ADDR +
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WL18XX_LOGGER_BUFF_OFFSET;
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u32 available_len;
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u32 actual_len;
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u32 clear_addr;
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size_t len;
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u32 start_loc;
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buffer = kzalloc(WL18XX_LOGGER_SDIO_BUFF_MAX, GFP_KERNEL);
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if (!buffer) {
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wl1271_error("Fail to allocate fw logger memory");
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fw_log.actual_buff_size = cpu_to_le32(0);
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goto out;
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}
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ret = wlcore_read(wl, addr, buffer, WL18XX_LOGGER_SDIO_BUFF_MAX,
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false);
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if (ret < 0) {
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wl1271_error("Fail to read logger buffer, error_id = %d",
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ret);
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fw_log.actual_buff_size = cpu_to_le32(0);
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goto free_out;
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}
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memcpy(&fw_log, buffer, sizeof(fw_log));
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if (le32_to_cpu(fw_log.actual_buff_size) == 0)
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goto free_out;
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actual_len = le32_to_cpu(fw_log.actual_buff_size);
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start_loc = (le32_to_cpu(fw_log.buff_read_ptr) -
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internal_fw_addrbase) - addr;
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end_buff_addr += le32_to_cpu(fw_log.max_buff_size);
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available_len = end_buff_addr -
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(le32_to_cpu(fw_log.buff_read_ptr) -
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internal_fw_addrbase);
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actual_len = min(actual_len, available_len);
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len = actual_len;
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wl12xx_copy_fwlog(wl, &buffer[start_loc], len);
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clear_addr = addr + start_loc + le32_to_cpu(fw_log.actual_buff_size) +
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internal_fw_addrbase;
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len = le32_to_cpu(fw_log.actual_buff_size) - len;
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if (len) {
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wl12xx_copy_fwlog(wl,
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&buffer[WL18XX_LOGGER_BUFF_OFFSET],
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len);
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clear_addr = addr + WL18XX_LOGGER_BUFF_OFFSET + len +
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internal_fw_addrbase;
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}
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/* double check that clear address and write pointer are the same */
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if (clear_addr != le32_to_cpu(fw_log.buff_write_ptr)) {
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wl1271_error("Calculate of clear addr Clear = %x, write = %x",
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clear_addr, le32_to_cpu(fw_log.buff_write_ptr));
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}
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/* indicate FW about Clear buffer */
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ret = wlcore_write32(wl, addr + WL18XX_LOGGER_READ_POINT_OFFSET,
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fw_log.buff_write_ptr);
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free_out:
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kfree(buffer);
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out:
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return le32_to_cpu(fw_log.actual_buff_size);
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}
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EXPORT_SYMBOL_GPL(wlcore_event_fw_logger);
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void wlcore_event_rssi_trigger(struct wl1271 *wl, s8 *metric_arr)
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{
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struct wl12xx_vif *wlvif;
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struct ieee80211_vif *vif;
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enum nl80211_cqm_rssi_threshold_event event;
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s8 metric = metric_arr[0];
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wl1271_debug(DEBUG_EVENT, "RSSI trigger metric: %d", metric);
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/* TODO: check actual multi-role support */
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wl12xx_for_each_wlvif_sta(wl, wlvif) {
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if (metric <= wlvif->rssi_thold)
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event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
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else
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event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
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vif = wl12xx_wlvif_to_vif(wlvif);
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if (event != wlvif->last_rssi_event)
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ieee80211_cqm_rssi_notify(vif, event, GFP_KERNEL);
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wlvif->last_rssi_event = event;
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}
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}
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EXPORT_SYMBOL_GPL(wlcore_event_rssi_trigger);
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static void wl1271_stop_ba_event(struct wl1271 *wl, struct wl12xx_vif *wlvif)
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{
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struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
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if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
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u8 hlid = wlvif->sta.hlid;
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if (!wl->links[hlid].ba_bitmap)
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return;
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ieee80211_stop_rx_ba_session(vif, wl->links[hlid].ba_bitmap,
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vif->bss_conf.bssid);
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} else {
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u8 hlid;
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struct wl1271_link *lnk;
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for_each_set_bit(hlid, wlvif->ap.sta_hlid_map,
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wl->num_links) {
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lnk = &wl->links[hlid];
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if (!lnk->ba_bitmap)
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continue;
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ieee80211_stop_rx_ba_session(vif,
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lnk->ba_bitmap,
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lnk->addr);
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}
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}
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}
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void wlcore_event_soft_gemini_sense(struct wl1271 *wl, u8 enable)
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{
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struct wl12xx_vif *wlvif;
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if (enable) {
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set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
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} else {
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clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
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wl12xx_for_each_wlvif_sta(wl, wlvif) {
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wl1271_recalc_rx_streaming(wl, wlvif);
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}
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}
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}
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EXPORT_SYMBOL_GPL(wlcore_event_soft_gemini_sense);
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void wlcore_event_sched_scan_completed(struct wl1271 *wl,
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u8 status)
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{
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wl1271_debug(DEBUG_EVENT, "PERIODIC_SCAN_COMPLETE_EVENT (status 0x%0x)",
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status);
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if (wl->sched_vif) {
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ieee80211_sched_scan_stopped(wl->hw);
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wl->sched_vif = NULL;
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}
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}
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EXPORT_SYMBOL_GPL(wlcore_event_sched_scan_completed);
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void wlcore_event_ba_rx_constraint(struct wl1271 *wl,
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unsigned long roles_bitmap,
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unsigned long allowed_bitmap)
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{
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struct wl12xx_vif *wlvif;
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wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx allowed=0x%lx",
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__func__, roles_bitmap, allowed_bitmap);
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wl12xx_for_each_wlvif(wl, wlvif) {
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if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
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!test_bit(wlvif->role_id , &roles_bitmap))
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continue;
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wlvif->ba_allowed = !!test_bit(wlvif->role_id,
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&allowed_bitmap);
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if (!wlvif->ba_allowed)
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wl1271_stop_ba_event(wl, wlvif);
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}
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}
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EXPORT_SYMBOL_GPL(wlcore_event_ba_rx_constraint);
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void wlcore_event_channel_switch(struct wl1271 *wl,
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unsigned long roles_bitmap,
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bool success)
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{
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struct wl12xx_vif *wlvif;
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struct ieee80211_vif *vif;
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wl1271_debug(DEBUG_EVENT, "%s: roles=0x%lx success=%d",
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__func__, roles_bitmap, success);
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wl12xx_for_each_wlvif(wl, wlvif) {
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if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
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!test_bit(wlvif->role_id , &roles_bitmap))
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continue;
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if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS,
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&wlvif->flags))
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continue;
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vif = wl12xx_wlvif_to_vif(wlvif);
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if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
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ieee80211_chswitch_done(vif, success);
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cancel_delayed_work(&wlvif->channel_switch_work);
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} else {
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set_bit(WLVIF_FLAG_BEACON_DISABLED, &wlvif->flags);
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ieee80211_csa_finish(vif);
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}
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}
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}
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EXPORT_SYMBOL_GPL(wlcore_event_channel_switch);
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void wlcore_event_dummy_packet(struct wl1271 *wl)
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{
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if (wl->plt) {
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wl1271_info("Got DUMMY_PACKET event in PLT mode. FW bug, ignoring.");
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return;
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}
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wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
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wl1271_tx_dummy_packet(wl);
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}
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EXPORT_SYMBOL_GPL(wlcore_event_dummy_packet);
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static void wlcore_disconnect_sta(struct wl1271 *wl, unsigned long sta_bitmap)
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{
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u32 num_packets = wl->conf.tx.max_tx_retries;
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struct wl12xx_vif *wlvif;
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struct ieee80211_vif *vif;
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struct ieee80211_sta *sta;
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const u8 *addr;
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int h;
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for_each_set_bit(h, &sta_bitmap, wl->num_links) {
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bool found = false;
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/* find the ap vif connected to this sta */
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wl12xx_for_each_wlvif_ap(wl, wlvif) {
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if (!test_bit(h, wlvif->ap.sta_hlid_map))
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continue;
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found = true;
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break;
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}
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if (!found)
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continue;
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vif = wl12xx_wlvif_to_vif(wlvif);
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addr = wl->links[h].addr;
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rcu_read_lock();
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sta = ieee80211_find_sta(vif, addr);
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if (sta) {
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wl1271_debug(DEBUG_EVENT, "remove sta %d", h);
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ieee80211_report_low_ack(sta, num_packets);
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}
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rcu_read_unlock();
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}
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}
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void wlcore_event_max_tx_failure(struct wl1271 *wl, unsigned long sta_bitmap)
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{
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wl1271_debug(DEBUG_EVENT, "MAX_TX_FAILURE_EVENT_ID");
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wlcore_disconnect_sta(wl, sta_bitmap);
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}
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EXPORT_SYMBOL_GPL(wlcore_event_max_tx_failure);
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void wlcore_event_inactive_sta(struct wl1271 *wl, unsigned long sta_bitmap)
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{
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wl1271_debug(DEBUG_EVENT, "INACTIVE_STA_EVENT_ID");
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wlcore_disconnect_sta(wl, sta_bitmap);
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}
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EXPORT_SYMBOL_GPL(wlcore_event_inactive_sta);
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void wlcore_event_roc_complete(struct wl1271 *wl)
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{
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wl1271_debug(DEBUG_EVENT, "REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID");
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if (wl->roc_vif)
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ieee80211_ready_on_channel(wl->hw);
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}
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EXPORT_SYMBOL_GPL(wlcore_event_roc_complete);
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void wlcore_event_beacon_loss(struct wl1271 *wl, unsigned long roles_bitmap)
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{
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/*
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* We are HW_MONITOR device. On beacon loss - queue
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* connection loss work. Cancel it on REGAINED event.
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*/
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struct wl12xx_vif *wlvif;
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struct ieee80211_vif *vif;
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int delay = wl->conf.conn.synch_fail_thold *
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wl->conf.conn.bss_lose_timeout;
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wl1271_info("Beacon loss detected. roles:0x%lx", roles_bitmap);
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wl12xx_for_each_wlvif_sta(wl, wlvif) {
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if (wlvif->role_id == WL12XX_INVALID_ROLE_ID ||
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!test_bit(wlvif->role_id , &roles_bitmap))
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continue;
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vif = wl12xx_wlvif_to_vif(wlvif);
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/* don't attempt roaming in case of p2p */
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if (wlvif->p2p) {
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ieee80211_connection_loss(vif);
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continue;
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}
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/*
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* if the work is already queued, it should take place.
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* We don't want to delay the connection loss
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* indication any more.
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*/
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ieee80211_queue_delayed_work(wl->hw,
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&wlvif->connection_loss_work,
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msecs_to_jiffies(delay));
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ieee80211_cqm_beacon_loss_notify(vif, GFP_KERNEL);
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}
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}
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EXPORT_SYMBOL_GPL(wlcore_event_beacon_loss);
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int wl1271_event_unmask(struct wl1271 *wl)
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{
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int ret;
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wl1271_debug(DEBUG_EVENT, "unmasking event_mask 0x%x", wl->event_mask);
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ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
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if (ret < 0)
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return ret;
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return 0;
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}
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int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
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{
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int ret;
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wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num);
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if (mbox_num > 1)
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return -EINVAL;
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/* first we read the mbox descriptor */
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ret = wlcore_read(wl, wl->mbox_ptr[mbox_num], wl->mbox,
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wl->mbox_size, false);
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if (ret < 0)
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return ret;
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/* process the descriptor */
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ret = wl->ops->process_mailbox_events(wl);
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if (ret < 0)
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return ret;
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/*
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* TODO: we just need this because one bit is in a different
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* place. Is there any better way?
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*/
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ret = wl->ops->ack_event(wl);
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return ret;
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}
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