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Commit 5d82c53a authored by Yogesh Ashok Powar's avatar Yogesh Ashok Powar Committed by John W. Linville
Browse files

mwifiex: add cfg80211 handler for set_bitrate_mask 



Currently, setting only legacy bitrates on 2.4GHz band
are supported. Mode 802.11b/g/bg is enabled based on
bitrates selection. If only CCK bitrates selected then
802.11b mode is enabled. If only OFDM bitrates are
selected then 802.11g mode is enabled. For both: CCK
and OFDM rates 802.11bg mixed mode is enabled.

Signed-off-by: default avatarYogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4e868796

drivers/net/wireless/mwifiex/cfg80211.c

+54 −0
Original line number Diff line number Diff line
@@ -671,6 +671,59 @@ static const u32 mwifiex_cipher_suites[] = { 
	WLAN_CIPHER_SUITE_CCMP,

};



/*

 * CFG802.11 operation handler for setting bit rates.

 *

 * Function selects legacy bang B/G/BG from corresponding bitrates selection.

 * Currently only 2.4GHz band is supported.

 */

static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,

				struct net_device *dev,

				const u8 *peer,

				const struct cfg80211_bitrate_mask *mask)

{

	struct mwifiex_ds_band_cfg band_cfg;

	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	int index = 0, mode = 0, i;



	/* Currently only 2.4GHz is supported */

	for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {

		/*

		 * Rates below 6 Mbps in the table are CCK rates; 802.11b

		 * and from 6 they are OFDM; 802.11G

		 */

		if (mwifiex_rates[i].bitrate == 60) {

			index = 1 << i;

			break;

		}

	}



	if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {

		mode = BAND_B;

	} else {

		mode = BAND_G;

		if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)

			mode |=  BAND_B;

	}



	memset(&band_cfg, 0, sizeof(band_cfg));

	band_cfg.config_bands = mode;



	if (priv->bss_mode == NL80211_IFTYPE_ADHOC)

		band_cfg.adhoc_start_band = mode;



	band_cfg.sec_chan_offset = NO_SEC_CHANNEL;



	if (mwifiex_set_radio_band_cfg(priv, &band_cfg))

		return -EFAULT;



	wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",

				(mode & BAND_B) ? "b" : "",

				(mode & BAND_G) ? "g" : "");



	return 0;

}



/*

 * CFG802.11 operation handler for disconnection request.

 *
@@ -1225,6 +1278,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = { 
	.set_default_key = mwifiex_cfg80211_set_default_key,

	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,

	.set_tx_power = mwifiex_cfg80211_set_tx_power,

	.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,

};



/*