1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * This file is part of wl12xx
4 *
5 * Copyright (C) 2012 Texas Instruments. All rights reserved.
6 */
7
8 #include <net/genetlink.h>
9 #include "event.h"
10 #include "scan.h"
11 #include "conf.h"
12 #include "../wlcore/cmd.h"
13 #include "../wlcore/debug.h"
14 #include "../wlcore/vendor_cmd.h"
15
wl18xx_wait_for_event(struct wl1271 * wl,enum wlcore_wait_event event,bool * timeout)16 int wl18xx_wait_for_event(struct wl1271 *wl, enum wlcore_wait_event event,
17 bool *timeout)
18 {
19 u32 local_event;
20
21 switch (event) {
22 case WLCORE_EVENT_PEER_REMOVE_COMPLETE:
23 local_event = PEER_REMOVE_COMPLETE_EVENT_ID;
24 break;
25
26 case WLCORE_EVENT_DFS_CONFIG_COMPLETE:
27 local_event = DFS_CHANNELS_CONFIG_COMPLETE_EVENT;
28 break;
29
30 default:
31 /* event not implemented */
32 return 0;
33 }
34 return wlcore_cmd_wait_for_event_or_timeout(wl, local_event, timeout);
35 }
36
wl18xx_radar_type_decode(u8 radar_type)37 static const char *wl18xx_radar_type_decode(u8 radar_type)
38 {
39 switch (radar_type) {
40 case RADAR_TYPE_REGULAR:
41 return "REGULAR";
42 case RADAR_TYPE_CHIRP:
43 return "CHIRP";
44 case RADAR_TYPE_NONE:
45 default:
46 return "N/A";
47 }
48 }
49
wlcore_smart_config_sync_event(struct wl1271 * wl,u8 sync_channel,u8 sync_band)50 static int wlcore_smart_config_sync_event(struct wl1271 *wl, u8 sync_channel,
51 u8 sync_band)
52 {
53 struct sk_buff *skb;
54 enum nl80211_band band;
55 int freq;
56
57 if (sync_band == WLCORE_BAND_5GHZ)
58 band = NL80211_BAND_5GHZ;
59 else
60 band = NL80211_BAND_2GHZ;
61
62 freq = ieee80211_channel_to_frequency(sync_channel, band);
63
64 wl1271_debug(DEBUG_EVENT,
65 "SMART_CONFIG_SYNC_EVENT_ID, freq: %d (chan: %d band %d)",
66 freq, sync_channel, sync_band);
67 skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL, 20,
68 WLCORE_VENDOR_EVENT_SC_SYNC,
69 GFP_KERNEL);
70
71 if (nla_put_u32(skb, WLCORE_VENDOR_ATTR_FREQ, freq)) {
72 kfree_skb(skb);
73 return -EMSGSIZE;
74 }
75 cfg80211_vendor_event(skb, GFP_KERNEL);
76 return 0;
77 }
78
wlcore_smart_config_decode_event(struct wl1271 * wl,u8 ssid_len,u8 * ssid,u8 pwd_len,u8 * pwd)79 static int wlcore_smart_config_decode_event(struct wl1271 *wl,
80 u8 ssid_len, u8 *ssid,
81 u8 pwd_len, u8 *pwd)
82 {
83 struct sk_buff *skb;
84
85 wl1271_debug(DEBUG_EVENT, "SMART_CONFIG_DECODE_EVENT_ID");
86 wl1271_dump_ascii(DEBUG_EVENT, "SSID:", ssid, ssid_len);
87
88 skb = cfg80211_vendor_event_alloc(wl->hw->wiphy, NULL,
89 ssid_len + pwd_len + 20,
90 WLCORE_VENDOR_EVENT_SC_DECODE,
91 GFP_KERNEL);
92
93 if (nla_put(skb, WLCORE_VENDOR_ATTR_SSID, ssid_len, ssid) ||
94 nla_put(skb, WLCORE_VENDOR_ATTR_PSK, pwd_len, pwd)) {
95 kfree_skb(skb);
96 return -EMSGSIZE;
97 }
98 cfg80211_vendor_event(skb, GFP_KERNEL);
99 return 0;
100 }
101
wlcore_event_time_sync(struct wl1271 * wl,u16 tsf_high_msb,u16 tsf_high_lsb,u16 tsf_low_msb,u16 tsf_low_lsb)102 static void wlcore_event_time_sync(struct wl1271 *wl,
103 u16 tsf_high_msb, u16 tsf_high_lsb,
104 u16 tsf_low_msb, u16 tsf_low_lsb)
105 {
106 u32 clock_low;
107 u32 clock_high;
108
109 clock_high = (tsf_high_msb << 16) | tsf_high_lsb;
110 clock_low = (tsf_low_msb << 16) | tsf_low_lsb;
111
112 wl1271_info("TIME_SYNC_EVENT_ID: clock_high %u, clock low %u",
113 clock_high, clock_low);
114 }
115
wl18xx_process_mailbox_events(struct wl1271 * wl)116 int wl18xx_process_mailbox_events(struct wl1271 *wl)
117 {
118 struct wl18xx_event_mailbox *mbox = wl->mbox;
119 u32 vector;
120
121 vector = le32_to_cpu(mbox->events_vector);
122 wl1271_debug(DEBUG_EVENT, "MBOX vector: 0x%x", vector);
123
124 if (vector & SCAN_COMPLETE_EVENT_ID) {
125 wl1271_debug(DEBUG_EVENT, "scan results: %d",
126 mbox->number_of_scan_results);
127
128 if (wl->scan_wlvif)
129 wl18xx_scan_completed(wl, wl->scan_wlvif);
130 }
131
132 if (vector & TIME_SYNC_EVENT_ID)
133 wlcore_event_time_sync(wl,
134 mbox->time_sync_tsf_high_msb,
135 mbox->time_sync_tsf_high_lsb,
136 mbox->time_sync_tsf_low_msb,
137 mbox->time_sync_tsf_low_lsb);
138
139 if (vector & RADAR_DETECTED_EVENT_ID) {
140 wl1271_info("radar event: channel %d type %s",
141 mbox->radar_channel,
142 wl18xx_radar_type_decode(mbox->radar_type));
143
144 if (!wl->radar_debug_mode)
145 ieee80211_radar_detected(wl->hw);
146 }
147
148 if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
149 wl1271_debug(DEBUG_EVENT,
150 "PERIODIC_SCAN_REPORT_EVENT (results %d)",
151 mbox->number_of_sched_scan_results);
152
153 wlcore_scan_sched_scan_results(wl);
154 }
155
156 if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID)
157 wlcore_event_sched_scan_completed(wl, 1);
158
159 if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID)
160 wlcore_event_rssi_trigger(wl, mbox->rssi_snr_trigger_metric);
161
162 if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID)
163 wlcore_event_ba_rx_constraint(wl,
164 le16_to_cpu(mbox->rx_ba_role_id_bitmap),
165 le16_to_cpu(mbox->rx_ba_allowed_bitmap));
166
167 if (vector & BSS_LOSS_EVENT_ID)
168 wlcore_event_beacon_loss(wl,
169 le16_to_cpu(mbox->bss_loss_bitmap));
170
171 if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID)
172 wlcore_event_channel_switch(wl,
173 le16_to_cpu(mbox->channel_switch_role_id_bitmap),
174 true);
175
176 if (vector & DUMMY_PACKET_EVENT_ID)
177 wlcore_event_dummy_packet(wl);
178
179 /*
180 * "TX retries exceeded" has a different meaning according to mode.
181 * In AP mode the offending station is disconnected.
182 */
183 if (vector & MAX_TX_FAILURE_EVENT_ID)
184 wlcore_event_max_tx_failure(wl,
185 le16_to_cpu(mbox->tx_retry_exceeded_bitmap));
186
187 if (vector & INACTIVE_STA_EVENT_ID)
188 wlcore_event_inactive_sta(wl,
189 le16_to_cpu(mbox->inactive_sta_bitmap));
190
191 if (vector & REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID)
192 wlcore_event_roc_complete(wl);
193
194 if (vector & SMART_CONFIG_SYNC_EVENT_ID)
195 wlcore_smart_config_sync_event(wl, mbox->sc_sync_channel,
196 mbox->sc_sync_band);
197
198 if (vector & SMART_CONFIG_DECODE_EVENT_ID)
199 wlcore_smart_config_decode_event(wl,
200 mbox->sc_ssid_len,
201 mbox->sc_ssid,
202 mbox->sc_pwd_len,
203 mbox->sc_pwd);
204 if (vector & FW_LOGGER_INDICATION)
205 wlcore_event_fw_logger(wl);
206
207 if (vector & RX_BA_WIN_SIZE_CHANGE_EVENT_ID) {
208 struct wl12xx_vif *wlvif;
209 struct ieee80211_vif *vif;
210 struct ieee80211_sta *sta;
211 u8 link_id = mbox->rx_ba_link_id;
212 u8 win_size = mbox->rx_ba_win_size;
213 const u8 *addr;
214
215 wlvif = wl->links[link_id].wlvif;
216 vif = wl12xx_wlvif_to_vif(wlvif);
217
218 /* Update RX aggregation window size and call
219 * MAC routine to stop active RX aggregations for this link
220 */
221 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
222 addr = vif->bss_conf.bssid;
223 else
224 addr = wl->links[link_id].addr;
225
226 sta = ieee80211_find_sta(vif, addr);
227 if (sta) {
228 sta->max_rx_aggregation_subframes = win_size;
229 ieee80211_stop_rx_ba_session(vif,
230 wl->links[link_id].ba_bitmap,
231 addr);
232 }
233 }
234
235 return 0;
236 }
237