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Commit 6bc6c49f authored by Xinming Hu's avatar Xinming Hu Committed by John W. Linville
Browse files

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: default avatarXinming Hu <huxm@marvell.com>
Signed-off-by: default avatarAvinash Patil <patila@marvell.com>
Signed-off-by: default avatarCathy Luo <cluo@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bf354433

drivers/net/wireless/mwifiex/cfg80211.c

+47 −0
Original line number Diff line number Diff line
@@ -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,