diff options
Diffstat (limited to 'drivers/net/wireless/ti/wlcore/event.c')
-rw-r--r-- | drivers/net/wireless/ti/wlcore/event.c | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c new file mode 100644 index 000000000..c42e78955 --- /dev/null +++ b/drivers/net/wireless/ti/wlcore/event.c @@ -0,0 +1,311 @@ +/* + * 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" + +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; + } +} +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); + } + } +} + +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); + } + } +} +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; + } +} +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); + } +} +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); + } + } +} +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); +} +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(); + } +} + +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); +} +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); +} +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); +} +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); + } +} +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; +} + +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; +} |