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mwifiex: add cfg80211 dump_survey handler 

This patch add cfg80211 dump_survey handler for mwifiex.
This handler will be called to report channel statistics
to cfg80211.

This in turn adds ACS support for mwifiex AP.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Xinming Hu 2014-10-31 16:08:27 +05:30 committed by John W. Linville
parent bf35443314
commit 6bc6c49f1e
1 changed files with 47 additions and 0 deletions
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47
drivers/net/wireless/mwifiex/cfg80211.c
View File

@ -992,6 +992,52 @@ mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
return mwifiex_dump_station_info(priv, sinfo);
}
static int
mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
int idx, struct survey_info *survey)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
enum ieee80211_band band;
dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
memset(survey, 0, sizeof(struct survey_info));
if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
priv->media_connected && idx == 0) {
u8 curr_bss_band = priv->curr_bss_params.band;
u32 chan = priv->curr_bss_params.bss_descriptor.channel;
band = mwifiex_band_to_radio_type(curr_bss_band);
survey->channel = ieee80211_get_channel(wiphy,
ieee80211_channel_to_frequency(chan, band));
if (priv->bcn_nf_last) {
survey->filled = SURVEY_INFO_NOISE_DBM;
survey->noise = priv->bcn_nf_last;
}
return 0;
}
if (idx >= priv->adapter->num_in_chan_stats)
return -ENOENT;
if (!pchan_stats[idx].cca_scan_dur)
return 0;
band = pchan_stats[idx].bandcfg;
survey->channel = ieee80211_get_channel(wiphy,
ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
survey->filled = SURVEY_INFO_NOISE_DBM |
SURVEY_INFO_CHANNEL_TIME | SURVEY_INFO_CHANNEL_TIME_BUSY;
survey->noise = pchan_stats[idx].noise;
survey->channel_time = pchan_stats[idx].cca_scan_dur;
survey->channel_time_busy = pchan_stats[idx].cca_busy_dur;
return 0;
}
/* Supported rates to be advertised to the cfg80211 */
static struct ieee80211_rate mwifiex_rates[] = {
{.bitrate = 10, .hw_value = 2, },
@ -2779,6 +2825,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = {
.disconnect = mwifiex_cfg80211_disconnect,
.get_station = mwifiex_cfg80211_get_station,
.dump_station = mwifiex_cfg80211_dump_station,
.dump_survey = mwifiex_cfg80211_dump_survey,
.set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
.join_ibss = mwifiex_cfg80211_join_ibss,
.leave_ibss = mwifiex_cfg80211_leave_ibss,