/*
* This function sets the RF channel.
*
* This function creates multiple IOCTL requests, populates them accordingly
* and issues them to set the band/channel and frequency.
*/
static int
mwifiex_set_rf_channel(struct mwifiex_private *priv,
struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
struct mwifiex_chan_freq_power cfp;
struct mwifiex_ds_band_cfg band_cfg;
u32 config_bands = 0;
struct wiphy *wiphy = priv->wdev->wiphy;
if (chan) {
memset(&band_cfg, 0, sizeof(band_cfg));
/* Set appropriate bands */
if (chan->band == IEEE80211_BAND_2GHZ)
config_bands = BAND_B | BAND_G | BAND_GN;
else
config_bands = BAND_AN | BAND_A;
if (priv->bss_mode == NL80211_IFTYPE_STATION
|| priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) {
band_cfg.config_bands = config_bands;
} else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
band_cfg.config_bands = config_bands;
band_cfg.adhoc_start_band = config_bands;
}
band_cfg.sec_chan_offset =
mwifiex_cfg80211_channel_type_to_mwifiex_channels
(channel_type);
if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
return -EFAULT;
mwifiex_send_domain_info_cmd_fw(wiphy);
}
wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
"mode %d\n", config_bands, band_cfg.sec_chan_offset,
priv->bss_mode);
if (!chan)
return 0;
memset(&cfp, 0, sizeof(cfp));
cfp.freq = chan->center_freq;
cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
if (mwifiex_bss_set_channel(priv, &cfp))
return -EFAULT;
return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
}
/*
* CFG802.11 regulatory domain callback function.
*
* This function is called when the regulatory domain is changed due to the
* following reasons -
* - Set by driver
* - Set by system core
* - Set by user
* - Set bt Country IE
*/
static int mwifiex_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
request->alpha2[0], request->alpha2[1]);
memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
switch (request->initiator) {
case NL80211_REGDOM_SET_BY_DRIVER:
case NL80211_REGDOM_SET_BY_CORE:
case NL80211_REGDOM_SET_BY_USER:
break;
/* Todo: apply driver specific changes in channel flags based
on the request initiator if necessary. */
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
break;
}
mwifiex_send_domain_info_cmd_fw(wiphy);
return 0;
}
void mwifiex_uap_set_channel(struct mwifiex_private *priv,
struct mwifiex_uap_bss_param *bss_cfg,
struct cfg80211_chan_def chandef)
{
u8 config_bands = 0, old_bands = priv->adapter->config_bands;
priv->bss_chandef = chandef;
bss_cfg->channel = ieee80211_frequency_to_channel(
chandef.chan->center_freq);
/* Set appropriate bands */
if (chandef.chan->band == IEEE80211_BAND_2GHZ) {
bss_cfg->band_cfg = BAND_CONFIG_BG;
config_bands = BAND_B | BAND_G;
if (chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
config_bands |= BAND_GN;
} else {
bss_cfg->band_cfg = BAND_CONFIG_A;
config_bands = BAND_A;
if (chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
config_bands |= BAND_AN;
if (chandef.width > NL80211_CHAN_WIDTH_40)
config_bands |= BAND_AAC;
}
priv->adapter->config_bands = config_bands;
if (old_bands != config_bands) {
mwifiex_send_domain_info_cmd_fw(priv->adapter->wiphy);
mwifiex_dnld_txpwr_table(priv);
}
}
/*
* This function sets the RF channel.
*
* This function creates multiple IOCTL requests, populates them accordingly
* and issues them to set the band/channel and frequency.
*/
static int
mwifiex_set_rf_channel(struct mwifiex_private *priv,
struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
struct mwifiex_chan_freq_power cfp;
u32 config_bands = 0;
struct wiphy *wiphy = priv->wdev->wiphy;
struct mwifiex_adapter *adapter = priv->adapter;
if (chan) {
/* Set appropriate bands */
if (chan->band == IEEE80211_BAND_2GHZ) {
if (channel_type == NL80211_CHAN_NO_HT)
if (priv->adapter->config_bands == BAND_B ||
priv->adapter->config_bands == BAND_G)
config_bands =
priv->adapter->config_bands;
else
config_bands = BAND_B | BAND_G;
else
config_bands = BAND_B | BAND_G | BAND_GN;
} else {
if (channel_type == NL80211_CHAN_NO_HT)
config_bands = BAND_A;
else
config_bands = BAND_AN | BAND_A;
}
if (!((config_bands | adapter->fw_bands) &
~adapter->fw_bands)) {
adapter->config_bands = config_bands;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
adapter->adhoc_start_band = config_bands;
if ((config_bands & BAND_GN) ||
(config_bands & BAND_AN))
adapter->adhoc_11n_enabled = true;
else
adapter->adhoc_11n_enabled = false;
}
}
adapter->sec_chan_offset =
mwifiex_cfg80211_channel_type_to_sec_chan_offset
(channel_type);
adapter->channel_type = channel_type;
mwifiex_send_domain_info_cmd_fw(wiphy);
}
wiphy_dbg(wiphy, "info: setting band %d, chan offset %d, mode %d\n",
config_bands, adapter->sec_chan_offset, priv->bss_mode);
if (!chan)
return 0;
memset(&cfp, 0, sizeof(cfp));
cfp.freq = chan->center_freq;
cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
if (mwifiex_bss_set_channel(priv, &cfp))
return -EFAULT;
if (priv->bss_type == MWIFIEX_BSS_TYPE_STA)
return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
else
return mwifiex_uap_set_channel(priv, cfp.channel);
}
