1 /* 2 * This file is part of wl12xx 3 * 4 * Copyright (C) 2012 Texas Instruments. All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * version 2 as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 18 * 02110-1301 USA 19 * 20 */ 21 22 #include <net/genetlink.h> 23 #include "event.h" 24 #include "scan.h" 25 #include "conf.h" 26 #include "../wlcore/cmd.h" 27 #include "../wlcore/debug.h" 28 #include "../wlcore/vendor_cmd.h" 29 30 int wl18xx_wait_for_event(struct wl1271 *wl, enum wlcore_wait_event event, 31 bool *timeout) 32 { 33 u32 local_event; 34 35 switch (event) { 36 case WLCORE_EVENT_PEER_REMOVE_COMPLETE: 37 local_event = PEER_REMOVE_COMPLETE_EVENT_ID; 38 break; 39 40 case WLCORE_EVENT_DFS_CONFIG_COMPLETE: 41 local_event = DFS_CHANNELS_CONFIG_COMPLETE_EVENT; 42 break; 43 44 default: 45 /* event not implemented */ 46 return 0; 47 } 48 return wlcore_cmd_wait_for_event_or_timeout(wl, local_event, timeout); 49 } 50 51 static const char *wl18xx_radar_type_decode(u8 radar_type) 52 { 53 switch (radar_type) { 54 case RADAR_TYPE_REGULAR: 55 return "REGULAR"; 56 case RADAR_TYPE_CHIRP: 57 return "CHIRP"; 58 case RADAR_TYPE_NONE: 59 default: 60 return "N/A"; 61 } 62 } 63 64 static int wlcore_smart_config_sync_event(struct wl1271 *wl, u8 sync_channel, 65 u8 sync_band) 66 { 67 struct sk_buff *skb; 68 enum nl80211_band band; 69 int freq; 70 71 if (sync_band == WLCORE_BAND_5GHZ) 72 band = NL80211_BAND_5GHZ; 73 else 74 band = NL80211_BAND_2GHZ; 75 76 freq = ieee80211_channel_to_frequency(sync_channel, band); 77 78 wl1271_debug(DEBUG_EVENT, 79 "SMART_CONFIG_SYNC_EVENT_ID, freq: %d (chan: %d band %d)", 80 freq, sync_channel, sync_band); 81 skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL, 20, 82 WLCORE_VENDOR_EVENT_SC_SYNC, 83 GFP_KERNEL); 84 85 if (nla_put_u32(skb, WLCORE_VENDOR_ATTR_FREQ, freq)) { 86 kfree_skb(skb); 87 return -EMSGSIZE; 88 } 89 cfg80211_vendor_event(skb, GFP_KERNEL); 90 return 0; 91 } 92 93 static int wlcore_smart_config_decode_event(struct wl1271 *wl, 94 u8 ssid_len, u8 *ssid, 95 u8 pwd_len, u8 *pwd) 96 { 97 struct sk_buff *skb; 98 99 wl1271_debug(DEBUG_EVENT, "SMART_CONFIG_DECODE_EVENT_ID"); 100 wl1271_dump_ascii(DEBUG_EVENT, "SSID:", ssid, ssid_len); 101 102 skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL, 103 ssid_len + pwd_len + 20, 104 WLCORE_VENDOR_EVENT_SC_DECODE, 105 GFP_KERNEL); 106 107 if (nla_put(skb, WLCORE_VENDOR_ATTR_SSID, ssid_len, ssid) || 108 nla_put(skb, WLCORE_VENDOR_ATTR_PSK, pwd_len, pwd)) { 109 kfree_skb(skb); 110 return -EMSGSIZE; 111 } 112 cfg80211_vendor_event(skb, GFP_KERNEL); 113 return 0; 114 } 115 116 static void wlcore_event_time_sync(struct wl1271 *wl, 117 u16 tsf_high_msb, u16 tsf_high_lsb, 118 u16 tsf_low_msb, u16 tsf_low_lsb) 119 { 120 u32 clock_low; 121 u32 clock_high; 122 123 clock_high = (tsf_high_msb << 16) | tsf_high_lsb; 124 clock_low = (tsf_low_msb << 16) | tsf_low_lsb; 125 126 wl1271_info("TIME_SYNC_EVENT_ID: clock_high %u, clock low %u", 127 clock_high, clock_low); 128 } 129 130 int wl18xx_process_mailbox_events(struct wl1271 *wl) 131 { 132 struct wl18xx_event_mailbox *mbox = wl->mbox; 133 u32 vector; 134 135 vector = le32_to_cpu(mbox->events_vector); 136 wl1271_debug(DEBUG_EVENT, "MBOX vector: 0x%x", vector); 137 138 if (vector & SCAN_COMPLETE_EVENT_ID) { 139 wl1271_debug(DEBUG_EVENT, "scan results: %d", 140 mbox->number_of_scan_results); 141 142 if (wl->scan_wlvif) 143 wl18xx_scan_completed(wl, wl->scan_wlvif); 144 } 145 146 if (vector & TIME_SYNC_EVENT_ID) 147 wlcore_event_time_sync(wl, 148 mbox->time_sync_tsf_high_msb, 149 mbox->time_sync_tsf_high_lsb, 150 mbox->time_sync_tsf_low_msb, 151 mbox->time_sync_tsf_low_lsb); 152 153 if (vector & RADAR_DETECTED_EVENT_ID) { 154 wl1271_info("radar event: channel %d type %s", 155 mbox->radar_channel, 156 wl18xx_radar_type_decode(mbox->radar_type)); 157 158 if (!wl->radar_debug_mode) 159 ieee80211_radar_detected(wl->hw); 160 } 161 162 if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) { 163 wl1271_debug(DEBUG_EVENT, 164 "PERIODIC_SCAN_REPORT_EVENT (results %d)", 165 mbox->number_of_sched_scan_results); 166 167 wlcore_scan_sched_scan_results(wl); 168 } 169 170 if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID) 171 wlcore_event_sched_scan_completed(wl, 1); 172 173 if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID) 174 wlcore_event_rssi_trigger(wl, mbox->rssi_snr_trigger_metric); 175 176 if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID) 177 wlcore_event_ba_rx_constraint(wl, 178 le16_to_cpu(mbox->rx_ba_role_id_bitmap), 179 le16_to_cpu(mbox->rx_ba_allowed_bitmap)); 180 181 if (vector & BSS_LOSS_EVENT_ID) 182 wlcore_event_beacon_loss(wl, 183 le16_to_cpu(mbox->bss_loss_bitmap)); 184 185 if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID) 186 wlcore_event_channel_switch(wl, 187 le16_to_cpu(mbox->channel_switch_role_id_bitmap), 188 true); 189 190 if (vector & DUMMY_PACKET_EVENT_ID) 191 wlcore_event_dummy_packet(wl); 192 193 /* 194 * "TX retries exceeded" has a different meaning according to mode. 195 * In AP mode the offending station is disconnected. 196 */ 197 if (vector & MAX_TX_FAILURE_EVENT_ID) 198 wlcore_event_max_tx_failure(wl, 199 le16_to_cpu(mbox->tx_retry_exceeded_bitmap)); 200 201 if (vector & INACTIVE_STA_EVENT_ID) 202 wlcore_event_inactive_sta(wl, 203 le16_to_cpu(mbox->inactive_sta_bitmap)); 204 205 if (vector & REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID) 206 wlcore_event_roc_complete(wl); 207 208 if (vector & SMART_CONFIG_SYNC_EVENT_ID) 209 wlcore_smart_config_sync_event(wl, mbox->sc_sync_channel, 210 mbox->sc_sync_band); 211 212 if (vector & SMART_CONFIG_DECODE_EVENT_ID) 213 wlcore_smart_config_decode_event(wl, 214 mbox->sc_ssid_len, 215 mbox->sc_ssid, 216 mbox->sc_pwd_len, 217 mbox->sc_pwd); 218 if (vector & FW_LOGGER_INDICATION) 219 wlcore_event_fw_logger(wl); 220 221 if (vector & RX_BA_WIN_SIZE_CHANGE_EVENT_ID) { 222 struct wl12xx_vif *wlvif; 223 struct ieee80211_vif *vif; 224 struct ieee80211_sta *sta; 225 u8 link_id = mbox->rx_ba_link_id; 226 u8 win_size = mbox->rx_ba_win_size; 227 const u8 *addr; 228 229 wlvif = wl->links[link_id].wlvif; 230 vif = wl12xx_wlvif_to_vif(wlvif); 231 232 /* Update RX aggregation window size and call 233 * MAC routine to stop active RX aggregations for this link 234 */ 235 if (wlvif->bss_type != BSS_TYPE_AP_BSS) 236 addr = vif->bss_conf.bssid; 237 else 238 addr = wl->links[link_id].addr; 239 240 sta = ieee80211_find_sta(vif, addr); 241 if (sta) { 242 sta->max_rx_aggregation_subframes = win_size; 243 ieee80211_stop_rx_ba_session(vif, 244 wl->links[link_id].ba_bitmap, 245 addr); 246 } 247 } 248 249 return 0; 250 } 251