tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 2009-2010 Nokia Corporation
5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24#ifndef __SCAN_H__
25#define __SCAN_H__
26
27#include "wlcore.h"
28
29int wlcore_scan(struct wl1271 *wl, struct ieee80211_vif *vif,
30 const u8 *ssid, size_t ssid_len,
31 struct cfg80211_scan_request *req);
32int wl1271_scan_build_probe_req(struct wl1271 *wl,
33 const u8 *ssid, size_t ssid_len,
34 const u8 *ie, size_t ie_len, u8 band);
35void wl1271_scan_stm(struct wl1271 *wl, struct wl12xx_vif *wlvif);
36void wl1271_scan_complete_work(struct work_struct *work);
37int wl1271_scan_sched_scan_config(struct wl1271 *wl,
38 struct wl12xx_vif *wlvif,
39 struct cfg80211_sched_scan_request *req,
40 struct ieee80211_scan_ies *ies);
41int wl1271_scan_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif);
42void wlcore_scan_sched_scan_results(struct wl1271 *wl);
43
44#define WL1271_SCAN_MAX_CHANNELS 24
45#define WL1271_SCAN_DEFAULT_TAG 1
46#define WL1271_SCAN_CURRENT_TX_PWR 0
47#define WL1271_SCAN_OPT_ACTIVE 0
48#define WL1271_SCAN_OPT_PASSIVE 1
49#define WL1271_SCAN_OPT_SPLIT_SCAN 2
50#define WL1271_SCAN_OPT_PRIORITY_HIGH 4
51/* scan even if we fail to enter psm */
52#define WL1271_SCAN_OPT_FORCE 8
53#define WL1271_SCAN_BAND_2_4_GHZ 0
54#define WL1271_SCAN_BAND_5_GHZ 1
55
56#define WL1271_SCAN_TIMEOUT 30000 /* msec */
57
58enum {
59 WL1271_SCAN_STATE_IDLE,
60 WL1271_SCAN_STATE_2GHZ_ACTIVE,
61 WL1271_SCAN_STATE_2GHZ_PASSIVE,
62 WL1271_SCAN_STATE_5GHZ_ACTIVE,
63 WL1271_SCAN_STATE_5GHZ_PASSIVE,
64 WL1271_SCAN_STATE_DONE
65};
66
67struct wl1271_cmd_trigger_scan_to {
68 struct wl1271_cmd_header header;
69
70 __le32 timeout;
71} __packed;
72
73#define MAX_CHANNELS_2GHZ 14
74#define MAX_CHANNELS_4GHZ 4
75
76/*
77 * This max value here is used only for the struct definition of
78 * wlcore_scan_channels. This struct is used by both 12xx
79 * and 18xx (which have different max 5ghz channels value).
80 * In order to make sure this is large enough, just use the
81 * max possible 5ghz channels.
82 */
83#define MAX_CHANNELS_5GHZ 42
84
85#define SCAN_MAX_CYCLE_INTERVALS 16
86#define SCAN_MAX_BANDS 3
87
88enum {
89 SCAN_SSID_FILTER_ANY = 0,
90 SCAN_SSID_FILTER_SPECIFIC = 1,
91 SCAN_SSID_FILTER_LIST = 2,
92 SCAN_SSID_FILTER_DISABLED = 3
93};
94
95enum {
96 SCAN_BSS_TYPE_INDEPENDENT,
97 SCAN_BSS_TYPE_INFRASTRUCTURE,
98 SCAN_BSS_TYPE_ANY,
99};
100
101#define SCAN_CHANNEL_FLAGS_DFS BIT(0) /* channel is passive until an
102 activity is detected on it */
103#define SCAN_CHANNEL_FLAGS_DFS_ENABLED BIT(1)
104
105struct conn_scan_ch_params {
106 __le16 min_duration;
107 __le16 max_duration;
108 __le16 passive_duration;
109
110 u8 channel;
111 u8 tx_power_att;
112
113 /* bit 0: DFS channel; bit 1: DFS enabled */
114 u8 flags;
115
116 u8 padding[3];
117} __packed;
118
119#define SCHED_SCAN_MAX_SSIDS 16
120
121enum {
122 SCAN_SSID_TYPE_PUBLIC = 0,
123 SCAN_SSID_TYPE_HIDDEN = 1,
124};
125
126struct wl1271_ssid {
127 u8 type;
128 u8 len;
129 u8 ssid[IEEE80211_MAX_SSID_LEN];
130 /* u8 padding[2]; */
131} __packed;
132
133struct wl1271_cmd_sched_scan_ssid_list {
134 struct wl1271_cmd_header header;
135
136 u8 n_ssids;
137 struct wl1271_ssid ssids[SCHED_SCAN_MAX_SSIDS];
138 u8 role_id;
139 u8 padding[2];
140} __packed;
141
142struct wlcore_scan_channels {
143 u8 passive[SCAN_MAX_BANDS]; /* number of passive scan channels */
144 u8 active[SCAN_MAX_BANDS]; /* number of active scan channels */
145 u8 dfs; /* number of dfs channels in 5ghz */
146 u8 passive_active; /* number of passive before active channels 2.4ghz */
147
148 struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
149 struct conn_scan_ch_params channels_5[MAX_CHANNELS_5GHZ];
150 struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
151};
152
153enum {
154 SCAN_TYPE_SEARCH = 0,
155 SCAN_TYPE_PERIODIC = 1,
156 SCAN_TYPE_TRACKING = 2,
157};
158
159bool
160wlcore_set_scan_chan_params(struct wl1271 *wl,
161 struct wlcore_scan_channels *cfg,
162 struct ieee80211_channel *channels[],
163 u32 n_channels,
164 u32 n_ssids,
165 int scan_type);
166
167int
168wlcore_scan_sched_scan_ssid_list(struct wl1271 *wl,
169 struct wl12xx_vif *wlvif,
170 struct cfg80211_sched_scan_request *req);
171
172#endif /* __WL1271_SCAN_H__ */