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
29int 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
50static 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
63static int wlcore_smart_config_sync_event(struct wl1271 *wl, u8 sync_channel,
64					  u8 sync_band)
65{
66	struct sk_buff *skb;
67	enum ieee80211_band band;
68	int freq;
69
70	if (sync_band == WLCORE_BAND_5GHZ)
71		band = IEEE80211_BAND_5GHZ;
72	else
73		band = IEEE80211_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
92static 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
115int wl18xx_process_mailbox_events(struct wl1271 *wl)
116{
117	struct wl18xx_event_mailbox *mbox = wl->mbox;
118	u32 vector;
119
120	vector = le32_to_cpu(mbox->events_vector);
121	wl1271_debug(DEBUG_EVENT, "MBOX vector: 0x%x", vector);
122
123	if (vector & SCAN_COMPLETE_EVENT_ID) {
124		wl1271_debug(DEBUG_EVENT, "scan results: %d",
125			     mbox->number_of_scan_results);
126
127		if (wl->scan_wlvif)
128			wl18xx_scan_completed(wl, wl->scan_wlvif);
129	}
130
131	if (vector & RADAR_DETECTED_EVENT_ID) {
132		wl1271_info("radar event: channel %d type %s",
133			    mbox->radar_channel,
134			    wl18xx_radar_type_decode(mbox->radar_type));
135
136		ieee80211_radar_detected(wl->hw);
137	}
138
139	if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
140		wl1271_debug(DEBUG_EVENT,
141			     "PERIODIC_SCAN_REPORT_EVENT (results %d)",
142			     mbox->number_of_sched_scan_results);
143
144		wlcore_scan_sched_scan_results(wl);
145	}
146
147	if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID)
148		wlcore_event_sched_scan_completed(wl, 1);
149
150	if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID)
151		wlcore_event_rssi_trigger(wl, mbox->rssi_snr_trigger_metric);
152
153	if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID)
154		wlcore_event_ba_rx_constraint(wl,
155				le16_to_cpu(mbox->rx_ba_role_id_bitmap),
156				le16_to_cpu(mbox->rx_ba_allowed_bitmap));
157
158	if (vector & BSS_LOSS_EVENT_ID)
159		wlcore_event_beacon_loss(wl,
160					 le16_to_cpu(mbox->bss_loss_bitmap));
161
162	if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID)
163		wlcore_event_channel_switch(wl,
164			le16_to_cpu(mbox->channel_switch_role_id_bitmap),
165			true);
166
167	if (vector & DUMMY_PACKET_EVENT_ID)
168		wlcore_event_dummy_packet(wl);
169
170	/*
171	 * "TX retries exceeded" has a different meaning according to mode.
172	 * In AP mode the offending station is disconnected.
173	 */
174	if (vector & MAX_TX_FAILURE_EVENT_ID)
175		wlcore_event_max_tx_failure(wl,
176				le32_to_cpu(mbox->tx_retry_exceeded_bitmap));
177
178	if (vector & INACTIVE_STA_EVENT_ID)
179		wlcore_event_inactive_sta(wl,
180				le32_to_cpu(mbox->inactive_sta_bitmap));
181
182	if (vector & REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID)
183		wlcore_event_roc_complete(wl);
184
185	if (vector & SMART_CONFIG_SYNC_EVENT_ID)
186		wlcore_smart_config_sync_event(wl, mbox->sc_sync_channel,
187					       mbox->sc_sync_band);
188
189	if (vector & SMART_CONFIG_DECODE_EVENT_ID)
190		wlcore_smart_config_decode_event(wl,
191						 mbox->sc_ssid_len,
192						 mbox->sc_ssid,
193						 mbox->sc_pwd_len,
194						 mbox->sc_pwd);
195
196	return 0;
197}
198