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/*
* This file is part of wl12xx
*
* Copyright (C) 2012 Texas Instruments. All rights reserved.
*
* 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 <net/genetlink.h>
#include "event.h"
#include "scan.h"
#include "../wlcore/cmd.h"
#include "../wlcore/debug.h"
#include "../wlcore/vendor_cmd.h"
int wl18xx_wait_for_event(struct wl1271 *wl, enum wlcore_wait_event event,
bool *timeout)
{
u32 local_event;
switch (event) {
case WLCORE_EVENT_PEER_REMOVE_COMPLETE:
local_event = PEER_REMOVE_COMPLETE_EVENT_ID;
break;
case WLCORE_EVENT_DFS_CONFIG_COMPLETE:
local_event = DFS_CHANNELS_CONFIG_COMPLETE_EVENT;
break;
default:
/* event not implemented */
return 0;
}
return wlcore_cmd_wait_for_event_or_timeout(wl, local_event, timeout);
}
static const char *wl18xx_radar_type_decode(u8 radar_type)
{
switch (radar_type) {
case RADAR_TYPE_REGULAR:
return "REGULAR";
case RADAR_TYPE_CHIRP:
return "CHIRP";
case RADAR_TYPE_NONE:
default:
return "N/A";
}
}
static int wlcore_smart_config_sync_event(struct wl1271 *wl, u8 sync_channel,
u8 sync_band)
{
struct sk_buff *skb;
enum ieee80211_band band;
int freq;
if (sync_band == WLCORE_BAND_5GHZ)
band = IEEE80211_BAND_5GHZ;
else
band = IEEE80211_BAND_2GHZ;
freq = ieee80211_channel_to_frequency(sync_channel, band);
wl1271_debug(DEBUG_EVENT,
"SMART_CONFIG_SYNC_EVENT_ID, freq: %d (chan: %d band %d)",
freq, sync_channel, sync_band);
skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL, 20,
WLCORE_VENDOR_EVENT_SC_SYNC,
GFP_KERNEL);
if (nla_put_u32(skb, WLCORE_VENDOR_ATTR_FREQ, freq)) {
kfree_skb(skb);
return -EMSGSIZE;
}
cfg80211_vendor_event(skb, GFP_KERNEL);
return 0;
}
static int wlcore_smart_config_decode_event(struct wl1271 *wl,
u8 ssid_len, u8 *ssid,
u8 pwd_len, u8 *pwd)
{
struct sk_buff *skb;
wl1271_debug(DEBUG_EVENT, "SMART_CONFIG_DECODE_EVENT_ID");
wl1271_dump_ascii(DEBUG_EVENT, "SSID:", ssid, ssid_len);
skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL,
ssid_len + pwd_len + 20,
WLCORE_VENDOR_EVENT_SC_DECODE,
GFP_KERNEL);
if (nla_put(skb, WLCORE_VENDOR_ATTR_SSID, ssid_len, ssid) ||
nla_put(skb, WLCORE_VENDOR_ATTR_PSK, pwd_len, pwd)) {
kfree_skb(skb);
return -EMSGSIZE;
}
cfg80211_vendor_event(skb, GFP_KERNEL);
return 0;
}
static void wlcore_event_time_sync(struct wl1271 *wl, u16 tsf_msb, u16 tsf_lsb)
{
u32 clock;
/* convert the MSB+LSB to a u32 TSF value */
clock = (tsf_msb << 16) | tsf_lsb;
wl1271_info("TIME_SYNC_EVENT_ID: clock %u", clock);
}
int wl18xx_process_mailbox_events(struct wl1271 *wl)
{
struct wl18xx_event_mailbox *mbox = wl->mbox;
u32 vector;
vector = le32_to_cpu(mbox->events_vector);
wl1271_debug(DEBUG_EVENT, "MBOX vector: 0x%x", vector);
if (vector & SCAN_COMPLETE_EVENT_ID) {
wl1271_debug(DEBUG_EVENT, "scan results: %d",
mbox->number_of_scan_results);
if (wl->scan_wlvif)
wl18xx_scan_completed(wl, wl->scan_wlvif);
}
if (vector & TIME_SYNC_EVENT_ID)
wlcore_event_time_sync(wl,
mbox->time_sync_tsf_msb,
mbox->time_sync_tsf_lsb);
if (vector & RADAR_DETECTED_EVENT_ID) {
wl1271_info("radar event: channel %d type %s",
mbox->radar_channel,
wl18xx_radar_type_decode(mbox->radar_type));
ieee80211_radar_detected(wl->hw);
}
if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
wl1271_debug(DEBUG_EVENT,
"PERIODIC_SCAN_REPORT_EVENT (results %d)",
mbox->number_of_sched_scan_results);
wlcore_scan_sched_scan_results(wl);
}
if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID)
wlcore_event_sched_scan_completed(wl, 1);
if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID)
wlcore_event_rssi_trigger(wl, mbox->rssi_snr_trigger_metric);
if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID)
wlcore_event_ba_rx_constraint(wl,
le16_to_cpu(mbox->rx_ba_role_id_bitmap),
le16_to_cpu(mbox->rx_ba_allowed_bitmap));
if (vector & BSS_LOSS_EVENT_ID)
wlcore_event_beacon_loss(wl,
le16_to_cpu(mbox->bss_loss_bitmap));
if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID)
wlcore_event_channel_switch(wl,
le16_to_cpu(mbox->channel_switch_role_id_bitmap),
true);
if (vector & DUMMY_PACKET_EVENT_ID)
wlcore_event_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_FAILURE_EVENT_ID)
wlcore_event_max_tx_failure(wl,
le32_to_cpu(mbox->tx_retry_exceeded_bitmap));
if (vector & INACTIVE_STA_EVENT_ID)
wlcore_event_inactive_sta(wl,
le32_to_cpu(mbox->inactive_sta_bitmap));
if (vector & REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID)
wlcore_event_roc_complete(wl);
if (vector & SMART_CONFIG_SYNC_EVENT_ID)
wlcore_smart_config_sync_event(wl, mbox->sc_sync_channel,
mbox->sc_sync_band);
if (vector & SMART_CONFIG_DECODE_EVENT_ID)
wlcore_smart_config_decode_event(wl,
mbox->sc_ssid_len,
mbox->sc_ssid,
mbox->sc_pwd_len,
mbox->sc_pwd);
if (vector & RX_BA_WIN_SIZE_CHANGE_EVENT_ID) {
struct wl12xx_vif *wlvif;
struct ieee80211_vif *vif;
struct ieee80211_sta *sta;
u8 link_id = mbox->rx_ba_link_id;
u8 win_size = mbox->rx_ba_win_size;
const u8 *addr;
wlvif = wl->links[link_id].wlvif;
vif = wl12xx_wlvif_to_vif(wlvif);
/* Update RX aggregation window size and call
* MAC routine to stop active RX aggregations for this link
*/
if (wlvif->bss_type != BSS_TYPE_AP_BSS)
addr = vif->bss_conf.bssid;
else
addr = wl->links[link_id].addr;
sta = ieee80211_find_sta(vif, addr);
if (sta) {
sta->max_rx_aggregation_subframes = win_size;
ieee80211_stop_rx_ba_session(vif,
wl->links[link_id].ba_bitmap,
addr);
}
}
return 0;
}
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