1/*
2 * This file is part of wl18xx
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#ifndef __WL18XX_SCAN_H__
23#define __WL18XX_SCAN_H__
24
25#include "../wlcore/wlcore.h"
26#include "../wlcore/cmd.h"
27#include "../wlcore/scan.h"
28
29struct tracking_ch_params {
30	struct conn_scan_ch_params channel;
31
32	__le32 bssid_lsb;
33	__le16 bssid_msb;
34
35	u8 padding[2];
36} __packed;
37
38/* probe request rate */
39enum
40{
41	WL18XX_SCAN_RATE_1	= 0,
42	WL18XX_SCAN_RATE_5_5	= 1,
43	WL18XX_SCAN_RATE_6	= 2,
44};
45
46#define WL18XX_MAX_CHANNELS_5GHZ 32
47
48struct wl18xx_cmd_scan_params {
49	struct wl1271_cmd_header header;
50
51	u8 role_id;
52	u8 scan_type;
53
54	s8 rssi_threshold; /* for filtering (in dBm) */
55	s8 snr_threshold;  /* for filtering (in dB) */
56
57	u8 bss_type;	   /* for filtering */
58	u8 ssid_from_list; /* use ssid from configured ssid list */
59	u8 filter;	   /* forward only results with matching ssids */
60
61	/*
62	 * add broadcast ssid in addition to the configured ssids.
63	 * the driver should add dummy entry for it (?).
64	 */
65	u8 add_broadcast;
66
67	u8 urgency;
68	u8 protect;	 /* ??? */
69	u8 n_probe_reqs;    /* Number of probes requests per channel */
70	u8 terminate_after; /* early terminate scan operation */
71
72	u8 passive[SCAN_MAX_BANDS]; /* number of passive scan channels */
73	u8 active[SCAN_MAX_BANDS];  /* number of active scan channels */
74	u8 dfs;		   /* number of dfs channels in 5ghz */
75	u8 passive_active; /* number of passive before active channels 2.4ghz */
76
77	__le16 short_cycles_sec;
78	__le16 long_cycles_sec;
79	u8 short_cycles_count;
80	u8 total_cycles; /* 0 - infinite */
81	u8 padding[2];
82
83	union {
84		struct {
85			struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
86			struct conn_scan_ch_params channels_5[WL18XX_MAX_CHANNELS_5GHZ];
87			struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
88		};
89		struct tracking_ch_params channels_tracking[WL1271_SCAN_MAX_CHANNELS];
90	} ;
91
92	u8 ssid[IEEE80211_MAX_SSID_LEN];
93	u8 ssid_len;	 /* For SCAN_SSID_FILTER_SPECIFIC */
94	u8 tag;
95	u8 rate;
96
97	/* send SCAN_REPORT_EVENT in periodic scans after each cycle
98	* if number of results >= report_threshold. Must be 0 for
99	* non periodic scans
100	*/
101	u8 report_threshold;
102
103	/* Should periodic scan stop after a report event was created.
104	* Must be 0 for non periodic scans.
105	*/
106	u8 terminate_on_report;
107
108	u8 padding1[3];
109} __packed;
110
111struct wl18xx_cmd_scan_stop {
112	struct wl1271_cmd_header header;
113
114	u8 role_id;
115	u8 scan_type;
116	u8 padding[2];
117} __packed;
118
119int wl18xx_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif,
120		      struct cfg80211_scan_request *req);
121int wl18xx_scan_stop(struct wl1271 *wl, struct wl12xx_vif *wlvif);
122void wl18xx_scan_completed(struct wl1271 *wl, struct wl12xx_vif *wlvif);
123int wl18xx_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif,
124			    struct cfg80211_sched_scan_request *req,
125			    struct ieee80211_scan_ies *ies);
126void wl18xx_scan_sched_scan_stop(struct wl1271 *wl, struct wl12xx_vif *wlvif);
127#endif
128