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wlcore: set channels 12-14 as pactive for sched scan

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Introduce “pactive” scan mode – which instructs the fw to
perform a passive scan until an activity/energy is detected
on these channels, once energy detected the channel becomes
active.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Victor Goldenshtein 2012-05-15 17:04:40 +03:00 committed by Luciano Coelho
parent 587cc286c8
commit 97511b15b1
2 changed files with 38 additions and 8 deletions
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39
drivers/net/wireless/ti/wlcore/scan.c
View file

@ -411,7 +411,8 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct conn_scan_ch_params *channels,
u32 band, bool radar, bool passive,
int start, int max_channels)
int start, int max_channels,
u8 *n_pactive_ch)
{
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, j;
@ -479,6 +480,23 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
channels[j].tx_power_att = req->channels[i]->max_power;
channels[j].channel = req->channels[i]->hw_value;
if ((band == IEEE80211_BAND_2GHZ) &&
(channels[j].channel >= 12) &&
(channels[j].channel <= 14) &&
(flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
!force_passive) {
/* pactive channels treated as DFS */
channels[j].flags = SCAN_CHANNEL_FLAGS_DFS;
/*
* n_pactive_ch is counted down from the end of
* the passive channel list
*/
(*n_pactive_ch)++;
wl1271_debug(DEBUG_SCAN, "n_pactive_ch = %d",
*n_pactive_ch);
}
j++;
}
}
@ -491,38 +509,47 @@ wl1271_scan_sched_scan_channels(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct wl1271_cmd_sched_scan_config *cfg)
{
u8 n_pactive_ch = 0;
cfg->passive[0] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2,
IEEE80211_BAND_2GHZ,
false, true, 0,
MAX_CHANNELS_2GHZ);
MAX_CHANNELS_2GHZ,
&n_pactive_ch);
cfg->active[0] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2,
IEEE80211_BAND_2GHZ,
false, false,
cfg->passive[0],
MAX_CHANNELS_2GHZ);
MAX_CHANNELS_2GHZ,
&n_pactive_ch);
cfg->passive[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
false, true, 0,
MAX_CHANNELS_5GHZ);
MAX_CHANNELS_5GHZ,
&n_pactive_ch);
cfg->dfs =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
true, true,
cfg->passive[1],
MAX_CHANNELS_5GHZ);
MAX_CHANNELS_5GHZ,
&n_pactive_ch);
cfg->active[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
false, false,
cfg->passive[1] + cfg->dfs,
MAX_CHANNELS_5GHZ);
MAX_CHANNELS_5GHZ,
&n_pactive_ch);
/* 802.11j channels are not supported yet */
cfg->passive[2] = 0;
cfg->active[2] = 0;
cfg->n_pactive_ch = n_pactive_ch;
wl1271_debug(DEBUG_SCAN, " 2.4GHz: active %d passive %d",
cfg->active[0], cfg->passive[0]);
wl1271_debug(DEBUG_SCAN, " 5GHz: active %d passive %d",

7
drivers/net/wireless/ti/wlcore/scan.h
View file

@ -142,7 +142,8 @@ enum {
SCAN_BSS_TYPE_ANY,
};
#define SCAN_CHANNEL_FLAGS_DFS BIT(0)
#define SCAN_CHANNEL_FLAGS_DFS BIT(0) /* channel is passive until an
activity is detected on it */
#define SCAN_CHANNEL_FLAGS_DFS_ENABLED BIT(1)
struct conn_scan_ch_params {
@ -185,8 +186,10 @@ struct wl1271_cmd_sched_scan_config {
u8 dfs;
u8 n_pactive_ch; /* number of pactive (passive until fw detects energy)
channels in BG band */
u8 role_id;
u8 padding[2];
u8 padding[1];
struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
struct conn_scan_ch_params channels_5[MAX_CHANNELS_5GHZ];