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#ifndef __WL12XX_SCAN_H__
 23#define __WL12XX_SCAN_H__
 24
 25#include "../wlcore/wlcore.h"
 26#include "../wlcore/cmd.h"
 27#include "../wlcore/scan.h"
 28
 29#define WL12XX_MAX_CHANNELS_5GHZ 23
 30
 31struct basic_scan_params {
 32	/* Scan option flags (WL1271_SCAN_OPT_*) */
 33	__le16 scan_options;
 34	u8 role_id;
 35	/* Number of scan channels in the list (maximum 30) */
 36	u8 n_ch;
 37	/* This field indicates the number of probe requests to send
 38	   per channel for an active scan */
 39	u8 n_probe_reqs;
 40	u8 tid_trigger;
 41	u8 ssid_len;
 42	u8 use_ssid_list;
 43
 44	/* Rate bit field for sending the probes */
 45	__le32 tx_rate;
 46
 47	u8 ssid[IEEE80211_MAX_SSID_LEN];
 48	/* Band to scan */
 49	u8 band;
 50
 51	u8 scan_tag;
 52	u8 padding2[2];
 53} __packed;
 54
 55struct basic_scan_channel_params {
 56	/* Duration in TU to wait for frames on a channel for active scan */
 57	__le32 min_duration;
 58	__le32 max_duration;
 59	__le32 bssid_lsb;
 60	__le16 bssid_msb;
 61	u8 early_termination;
 62	u8 tx_power_att;
 63	u8 channel;
 64	/* FW internal use only! */
 65	u8 dfs_candidate;
 66	u8 activity_detected;
 67	u8 pad;
 68} __packed;
 69
 70struct wl1271_cmd_scan {
 71	struct wl1271_cmd_header header;
 72
 73	struct basic_scan_params params;
 74	struct basic_scan_channel_params channels[WL1271_SCAN_MAX_CHANNELS];
 75
 76	/* src mac address */
 77	u8 addr[ETH_ALEN];
 78	u8 padding[2];
 79} __packed;
 80
 81struct wl1271_cmd_sched_scan_config {
 82	struct wl1271_cmd_header header;
 83
 84	__le32 intervals[SCAN_MAX_CYCLE_INTERVALS];
 85
 86	s8 rssi_threshold; /* for filtering (in dBm) */
 87	s8 snr_threshold;  /* for filtering (in dB) */
 88
 89	u8 cycles;       /* maximum number of scan cycles */
 90	u8 report_after; /* report when this number of results are received */
 91	u8 terminate;    /* stop scanning after reporting */
 92
 93	u8 tag;
 94	u8 bss_type; /* for filtering */
 95	u8 filter_type;
 96
 97	u8 ssid_len;     /* For SCAN_SSID_FILTER_SPECIFIC */
 98	u8 ssid[IEEE80211_MAX_SSID_LEN];
 99
100	u8 n_probe_reqs; /* Number of probes requests per channel */
101
102	u8 passive[SCAN_MAX_BANDS];
103	u8 active[SCAN_MAX_BANDS];
104
105	u8 dfs;
106
107	u8 n_pactive_ch; /* number of pactive (passive until fw detects energy)
108			    channels in BG band */
109	u8 role_id;
110	u8 padding[1];
111	struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
112	struct conn_scan_ch_params channels_5[WL12XX_MAX_CHANNELS_5GHZ];
113	struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
114} __packed;
115
116struct wl1271_cmd_sched_scan_start {
117	struct wl1271_cmd_header header;
118
119	u8 tag;
120	u8 role_id;
121	u8 padding[2];
122} __packed;
123
124struct wl1271_cmd_sched_scan_stop {
125	struct wl1271_cmd_header header;
126
127	u8 tag;
128	u8 role_id;
129	u8 padding[2];
130} __packed;
131
132int wl12xx_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif,
133		      struct cfg80211_scan_request *req);
134int wl12xx_scan_stop(struct wl1271 *wl, struct wl12xx_vif *wlvif);
135void wl12xx_scan_completed(struct wl1271 *wl, struct wl12xx_vif *wlvif);
136int wl12xx_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif  *wlvif,
137			    struct cfg80211_sched_scan_request *req,
138			    struct ieee80211_scan_ies *ies);
139void wl12xx_scan_sched_scan_stop(struct wl1271 *wl,  struct wl12xx_vif *wlvif);
140#endif