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 int wlcore_smart_config_sync_event(struct wl1271 *wl, u8 sync_channel,
51					  u8 sync_band)
52{
53	struct sk_buff *skb;
54	enum ieee80211_band band;
55	int freq;
56
57	if (sync_band == WLCORE_BAND_5GHZ)
58		band = IEEE80211_BAND_5GHZ;
59	else
60		band = IEEE80211_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, 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
79static 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,
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
102int wl18xx_process_mailbox_events(struct wl1271 *wl)
103{
104	struct wl18xx_event_mailbox *mbox = wl->mbox;
105	u32 vector;
106
107	vector = le32_to_cpu(mbox->events_vector);
108	wl1271_debug(DEBUG_EVENT, "MBOX vector: 0x%x", vector);
109
110	if (vector & SCAN_COMPLETE_EVENT_ID) {
111		wl1271_debug(DEBUG_EVENT, "scan results: %d",
112			     mbox->number_of_scan_results);
113
114		if (wl->scan_wlvif)
115			wl18xx_scan_completed(wl, wl->scan_wlvif);
116	}
117
118	if (vector & PERIODIC_SCAN_REPORT_EVENT_ID) {
119		wl1271_debug(DEBUG_EVENT,
120			     "PERIODIC_SCAN_REPORT_EVENT (results %d)",
121			     mbox->number_of_sched_scan_results);
122
123		wlcore_scan_sched_scan_results(wl);
124	}
125
126	if (vector & PERIODIC_SCAN_COMPLETE_EVENT_ID)
127		wlcore_event_sched_scan_completed(wl, 1);
128
129	if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID)
130		wlcore_event_rssi_trigger(wl, mbox->rssi_snr_trigger_metric);
131
132	if (vector & BA_SESSION_RX_CONSTRAINT_EVENT_ID)
133		wlcore_event_ba_rx_constraint(wl,
134				le16_to_cpu(mbox->rx_ba_role_id_bitmap),
135				le16_to_cpu(mbox->rx_ba_allowed_bitmap));
136
137	if (vector & BSS_LOSS_EVENT_ID)
138		wlcore_event_beacon_loss(wl,
139					 le16_to_cpu(mbox->bss_loss_bitmap));
140
141	if (vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID)
142		wlcore_event_channel_switch(wl,
143			le16_to_cpu(mbox->channel_switch_role_id_bitmap),
144			true);
145
146	if (vector & DUMMY_PACKET_EVENT_ID)
147		wlcore_event_dummy_packet(wl);
148
149	/*
150	 * "TX retries exceeded" has a different meaning according to mode.
151	 * In AP mode the offending station is disconnected.
152	 */
153	if (vector & MAX_TX_FAILURE_EVENT_ID)
154		wlcore_event_max_tx_failure(wl,
155				le32_to_cpu(mbox->tx_retry_exceeded_bitmap));
156
157	if (vector & INACTIVE_STA_EVENT_ID)
158		wlcore_event_inactive_sta(wl,
159				le32_to_cpu(mbox->inactive_sta_bitmap));
160
161	if (vector & REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID)
162		wlcore_event_roc_complete(wl);
163
164	if (vector & SMART_CONFIG_SYNC_EVENT_ID)
165		wlcore_smart_config_sync_event(wl, mbox->sc_sync_channel,
166					       mbox->sc_sync_band);
167
168	if (vector & SMART_CONFIG_DECODE_EVENT_ID)
169		wlcore_smart_config_decode_event(wl,
170						 mbox->sc_ssid_len,
171						 mbox->sc_ssid,
172						 mbox->sc_pwd_len,
173						 mbox->sc_pwd);
174
175	return 0;
176}
177