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This event is used by the Firmware to limit the RX BA win size for a specific link. The event handler updates the new size in the mac's sta->sta struct. BA sessions opened for that link will use the new restricted win_size. This limitation remains until a new update is received or until the link is closed. Signed-off-by: Maxim Altshul <maxim.altshul@ti.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
250 lines
6.5 KiB
C
250 lines
6.5 KiB
C
/*
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* This file is part of wl12xx
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*
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* Copyright (C) 2012 Texas Instruments. All rights reserved.
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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 <net/genetlink.h>
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#include "event.h"
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#include "scan.h"
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#include "conf.h"
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#include "../wlcore/cmd.h"
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#include "../wlcore/debug.h"
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#include "../wlcore/vendor_cmd.h"
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int wl18xx_wait_for_event(struct wl1271 *wl, enum wlcore_wait_event event,
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bool *timeout)
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{
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u32 local_event;
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switch (event) {
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case WLCORE_EVENT_PEER_REMOVE_COMPLETE:
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local_event = PEER_REMOVE_COMPLETE_EVENT_ID;
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break;
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case WLCORE_EVENT_DFS_CONFIG_COMPLETE:
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local_event = DFS_CHANNELS_CONFIG_COMPLETE_EVENT;
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break;
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default:
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/* event not implemented */
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return 0;
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}
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return wlcore_cmd_wait_for_event_or_timeout(wl, local_event, timeout);
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}
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static const char *wl18xx_radar_type_decode(u8 radar_type)
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{
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switch (radar_type) {
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case RADAR_TYPE_REGULAR:
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return "REGULAR";
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case RADAR_TYPE_CHIRP:
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return "CHIRP";
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case RADAR_TYPE_NONE:
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default:
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return "N/A";
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}
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}
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static int wlcore_smart_config_sync_event(struct wl1271 *wl, u8 sync_channel,
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u8 sync_band)
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{
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struct sk_buff *skb;
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enum nl80211_band band;
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int freq;
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if (sync_band == WLCORE_BAND_5GHZ)
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band = NL80211_BAND_5GHZ;
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else
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band = NL80211_BAND_2GHZ;
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freq = ieee80211_channel_to_frequency(sync_channel, band);
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wl1271_debug(DEBUG_EVENT,
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"SMART_CONFIG_SYNC_EVENT_ID, freq: %d (chan: %d band %d)",
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freq, sync_channel, sync_band);
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skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL, 20,
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WLCORE_VENDOR_EVENT_SC_SYNC,
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GFP_KERNEL);
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if (nla_put_u32(skb, WLCORE_VENDOR_ATTR_FREQ, freq)) {
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kfree_skb(skb);
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return -EMSGSIZE;
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}
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cfg80211_vendor_event(skb, GFP_KERNEL);
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return 0;
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}
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static int wlcore_smart_config_decode_event(struct wl1271 *wl,
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u8 ssid_len, u8 *ssid,
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u8 pwd_len, u8 *pwd)
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{
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struct sk_buff *skb;
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wl1271_debug(DEBUG_EVENT, "SMART_CONFIG_DECODE_EVENT_ID");
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wl1271_dump_ascii(DEBUG_EVENT, "SSID:", ssid, ssid_len);
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skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL,
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ssid_len + pwd_len + 20,
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WLCORE_VENDOR_EVENT_SC_DECODE,
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GFP_KERNEL);
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if (nla_put(skb, WLCORE_VENDOR_ATTR_SSID, ssid_len, ssid) ||
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nla_put(skb, WLCORE_VENDOR_ATTR_PSK, pwd_len, pwd)) {
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kfree_skb(skb);
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return -EMSGSIZE;
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}
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cfg80211_vendor_event(skb, GFP_KERNEL);
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return 0;
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}
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static void wlcore_event_time_sync(struct wl1271 *wl,
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u16 tsf_high_msb, u16 tsf_high_lsb,
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u16 tsf_low_msb, u16 tsf_low_lsb)
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{
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u32 clock_low;
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u32 clock_high;
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clock_high = (tsf_high_msb << 16) | tsf_high_lsb;
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clock_low = (tsf_low_msb << 16) | tsf_low_lsb;
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wl1271_info("TIME_SYNC_EVENT_ID: clock_high %u, clock low %u",
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clock_high, clock_low);
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}
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int wl18xx_process_mailbox_events(struct wl1271 *wl)
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{
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struct wl18xx_event_mailbox *mbox = wl->mbox;
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u32 vector;
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vector = le32_to_cpu(mbox->events_vector);
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wl1271_debug(DEBUG_EVENT, "MBOX vector: 0x%x", vector);
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if (vector & SCAN_COMPLETE_EVENT_ID) {
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wl1271_debug(DEBUG_EVENT, "scan results: %d",
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mbox->number_of_scan_results);
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if (wl->scan_wlvif)
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wl18xx_scan_completed(wl, wl->scan_wlvif);
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}
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if (vector & TIME_SYNC_EVENT_ID)
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wlcore_event_time_sync(wl,
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mbox->time_sync_tsf_high_msb,
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mbox->time_sync_tsf_high_lsb,
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mbox->time_sync_tsf_low_msb,
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mbox->time_sync_tsf_low_lsb);
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if (vector & RADAR_DETECTED_EVENT_ID) {
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wl1271_info("radar event: channel %d type %s",
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mbox->radar_channel,
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wl18xx_radar_type_decode(mbox->radar_type));
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if (!wl->radar_debug_mode)
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ieee80211_radar_detected(wl->hw);
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}
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if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
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wl1271_debug(DEBUG_EVENT,
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"PERIODIC_SCAN_REPORT_EVENT (results %d)",
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mbox->number_of_sched_scan_results);
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wlcore_scan_sched_scan_results(wl);
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}
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if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID)
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wlcore_event_sched_scan_completed(wl, 1);
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if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID)
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wlcore_event_rssi_trigger(wl, mbox->rssi_snr_trigger_metric);
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if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID)
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wlcore_event_ba_rx_constraint(wl,
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le16_to_cpu(mbox->rx_ba_role_id_bitmap),
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le16_to_cpu(mbox->rx_ba_allowed_bitmap));
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if (vector & BSS_LOSS_EVENT_ID)
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wlcore_event_beacon_loss(wl,
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le16_to_cpu(mbox->bss_loss_bitmap));
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if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID)
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wlcore_event_channel_switch(wl,
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le16_to_cpu(mbox->channel_switch_role_id_bitmap),
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true);
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if (vector & DUMMY_PACKET_EVENT_ID)
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wlcore_event_dummy_packet(wl);
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/*
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* "TX retries exceeded" has a different meaning according to mode.
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* In AP mode the offending station is disconnected.
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*/
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if (vector & MAX_TX_FAILURE_EVENT_ID)
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wlcore_event_max_tx_failure(wl,
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le16_to_cpu(mbox->tx_retry_exceeded_bitmap));
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if (vector & INACTIVE_STA_EVENT_ID)
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wlcore_event_inactive_sta(wl,
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le16_to_cpu(mbox->inactive_sta_bitmap));
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if (vector & REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID)
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wlcore_event_roc_complete(wl);
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if (vector & SMART_CONFIG_SYNC_EVENT_ID)
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wlcore_smart_config_sync_event(wl, mbox->sc_sync_channel,
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mbox->sc_sync_band);
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if (vector & SMART_CONFIG_DECODE_EVENT_ID)
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wlcore_smart_config_decode_event(wl,
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mbox->sc_ssid_len,
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mbox->sc_ssid,
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mbox->sc_pwd_len,
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mbox->sc_pwd);
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if (vector & FW_LOGGER_INDICATION)
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wlcore_event_fw_logger(wl);
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if (vector & RX_BA_WIN_SIZE_CHANGE_EVENT_ID) {
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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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u8 link_id = mbox->rx_ba_link_id;
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u8 win_size = mbox->rx_ba_win_size;
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const u8 *addr;
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wlvif = wl->links[link_id].wlvif;
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vif = wl12xx_wlvif_to_vif(wlvif);
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/* Update RX aggregation window size and call
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* MAC routine to stop active RX aggregations for this link
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*/
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if (wlvif->bss_type != BSS_TYPE_AP_BSS)
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addr = vif->bss_conf.bssid;
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else
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addr = wl->links[link_id].addr;
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sta = ieee80211_find_sta(vif, addr);
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if (sta) {
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sta->max_rx_aggregation_subframes = win_size;
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ieee80211_stop_rx_ba_session(vif,
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wl->links[link_id].ba_bitmap,
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addr);
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}
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}
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return 0;
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}
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