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 "../wlcore/cmd.h" 26 #include "../wlcore/debug.h" 27 #include "../wlcore/vendor_cmd.h" 28 29 int wl18xx_wait_for_event(struct wl1271 *wl, enum wlcore_wait_event event, 30 bool *timeout) 31 { 32 u32 local_event; 33 34 switch (event) { 35 case WLCORE_EVENT_PEER_REMOVE_COMPLETE: 36 local_event = PEER_REMOVE_COMPLETE_EVENT_ID; 37 break; 38 39 case WLCORE_EVENT_DFS_CONFIG_COMPLETE: 40 local_event = DFS_CHANNELS_CONFIG_COMPLETE_EVENT; 41 break; 42 43 default: 44 /* event not implemented */ 45 return 0; 46 } 47 return wlcore_cmd_wait_for_event_or_timeout(wl, local_event, timeout); 48 } 49 50 static const char *wl18xx_radar_type_decode(u8 radar_type) 51 { 52 switch (radar_type) { 53 case RADAR_TYPE_REGULAR: 54 return "REGULAR"; 55 case RADAR_TYPE_CHIRP: 56 return "CHIRP"; 57 case RADAR_TYPE_NONE: 58 default: 59 return "N/A"; 60 } 61 } 62 63 static int wlcore_smart_config_sync_event(struct wl1271 *wl, u8 sync_channel, 64 u8 sync_band) 65 { 66 struct sk_buff *skb; 67 enum nl80211_band band; 68 int freq; 69 70 if (sync_band == WLCORE_BAND_5GHZ) 71 band = NL80211_BAND_5GHZ; 72 else 73 band = NL80211_BAND_2GHZ; 74 75 freq = ieee80211_channel_to_frequency(sync_channel, band); 76 77 wl1271_debug(DEBUG_EVENT, 78 "SMART_CONFIG_SYNC_EVENT_ID, freq: %d (chan: %d band %d)", 79 freq, sync_channel, sync_band); 80 skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL, 20, 81 WLCORE_VENDOR_EVENT_SC_SYNC, 82 GFP_KERNEL); 83 84 if (nla_put_u32(skb, WLCORE_VENDOR_ATTR_FREQ, freq)) { 85 kfree_skb(skb); 86 return -EMSGSIZE; 87 } 88 cfg80211_vendor_event(skb, GFP_KERNEL); 89 return 0; 90 } 91 92 static int wlcore_smart_config_decode_event(struct wl1271 *wl, 93 u8 ssid_len, u8 *ssid, 94 u8 pwd_len, u8 *pwd) 95 { 96 struct sk_buff *skb; 97 98 wl1271_debug(DEBUG_EVENT, "SMART_CONFIG_DECODE_EVENT_ID"); 99 wl1271_dump_ascii(DEBUG_EVENT, "SSID:", ssid, ssid_len); 100 101 skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL, 102 ssid_len + pwd_len + 20, 103 WLCORE_VENDOR_EVENT_SC_DECODE, 104 GFP_KERNEL); 105 106 if (nla_put(skb, WLCORE_VENDOR_ATTR_SSID, ssid_len, ssid) || 107 nla_put(skb, WLCORE_VENDOR_ATTR_PSK, pwd_len, pwd)) { 108 kfree_skb(skb); 109 return -EMSGSIZE; 110 } 111 cfg80211_vendor_event(skb, GFP_KERNEL); 112 return 0; 113 } 114 115 static void wlcore_event_time_sync(struct wl1271 *wl, u16 tsf_msb, u16 tsf_lsb) 116 { 117 u32 clock; 118 /* convert the MSB+LSB to a u32 TSF value */ 119 clock = (tsf_msb << 16) | tsf_lsb; 120 wl1271_info("TIME_SYNC_EVENT_ID: clock %u", clock); 121 } 122 123 int wl18xx_process_mailbox_events(struct wl1271 *wl) 124 { 125 struct wl18xx_event_mailbox *mbox = wl->mbox; 126 u32 vector; 127 128 vector = le32_to_cpu(mbox->events_vector); 129 wl1271_debug(DEBUG_EVENT, "MBOX vector: 0x%x", vector); 130 131 if (vector & SCAN_COMPLETE_EVENT_ID) { 132 wl1271_debug(DEBUG_EVENT, "scan results: %d", 133 mbox->number_of_scan_results); 134 135 if (wl->scan_wlvif) 136 wl18xx_scan_completed(wl, wl->scan_wlvif); 137 } 138 139 if (vector & TIME_SYNC_EVENT_ID) 140 wlcore_event_time_sync(wl, 141 mbox->time_sync_tsf_msb, 142 mbox->time_sync_tsf_lsb); 143 144 if (vector & RADAR_DETECTED_EVENT_ID) { 145 wl1271_info("radar event: channel %d type %s", 146 mbox->radar_channel, 147 wl18xx_radar_type_decode(mbox->radar_type)); 148 149 if (!wl->radar_debug_mode) 150 ieee80211_radar_detected(wl->hw); 151 } 152 153 if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) { 154 wl1271_debug(DEBUG_EVENT, 155 "PERIODIC_SCAN_REPORT_EVENT (results %d)", 156 mbox->number_of_sched_scan_results); 157 158 wlcore_scan_sched_scan_results(wl); 159 } 160 161 if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID) 162 wlcore_event_sched_scan_completed(wl, 1); 163 164 if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID) 165 wlcore_event_rssi_trigger(wl, mbox->rssi_snr_trigger_metric); 166 167 if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID) 168 wlcore_event_ba_rx_constraint(wl, 169 le16_to_cpu(mbox->rx_ba_role_id_bitmap), 170 le16_to_cpu(mbox->rx_ba_allowed_bitmap)); 171 172 if (vector & BSS_LOSS_EVENT_ID) 173 wlcore_event_beacon_loss(wl, 174 le16_to_cpu(mbox->bss_loss_bitmap)); 175 176 if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID) 177 wlcore_event_channel_switch(wl, 178 le16_to_cpu(mbox->channel_switch_role_id_bitmap), 179 true); 180 181 if (vector & DUMMY_PACKET_EVENT_ID) 182 wlcore_event_dummy_packet(wl); 183 184 /* 185 * "TX retries exceeded" has a different meaning according to mode. 186 * In AP mode the offending station is disconnected. 187 */ 188 if (vector & MAX_TX_FAILURE_EVENT_ID) 189 wlcore_event_max_tx_failure(wl, 190 le32_to_cpu(mbox->tx_retry_exceeded_bitmap)); 191 192 if (vector & INACTIVE_STA_EVENT_ID) 193 wlcore_event_inactive_sta(wl, 194 le32_to_cpu(mbox->inactive_sta_bitmap)); 195 196 if (vector & REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID) 197 wlcore_event_roc_complete(wl); 198 199 if (vector & SMART_CONFIG_SYNC_EVENT_ID) 200 wlcore_smart_config_sync_event(wl, mbox->sc_sync_channel, 201 mbox->sc_sync_band); 202 203 if (vector & SMART_CONFIG_DECODE_EVENT_ID) 204 wlcore_smart_config_decode_event(wl, 205 mbox->sc_ssid_len, 206 mbox->sc_ssid, 207 mbox->sc_pwd_len, 208 mbox->sc_pwd); 209 if (vector & FW_LOGGER_INDICATION) 210 wlcore_event_fw_logger(wl); 211 212 return 0; 213 } 214