RTL88x2BU-Linux-Driver/os_dep/linux/wifi_regd.c

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/******************************************************************************
*
* Copyright(c) 2009-2010 - 2017 Realtek Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*****************************************************************************/
#include <drv_types.h>
#ifdef CONFIG_IOCTL_CFG80211
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void rtw_regd_apply_flags(struct wiphy *wiphy)
{
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struct dvobj_priv *dvobj = wiphy_to_dvobj(wiphy);
struct rf_ctl_t *rfctl = dvobj_to_rfctl(dvobj);
RT_CHANNEL_INFO *channel_set = rfctl->channel_set;
u8 max_chan_nums = rfctl->max_chan_nums;
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
unsigned int i, j;
u16 channel;
u32 freq;
/* all channels disable */
for (i = 0; i < NUM_NL80211_BANDS; i++) {
sband = wiphy->bands[i];
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if (!sband)
continue;
for (j = 0; j < sband->n_channels; j++) {
ch = &sband->channels[j];
if (!ch)
continue;
ch->flags = IEEE80211_CHAN_DISABLED;
}
}
/* channels apply by channel plans. */
for (i = 0; i < max_chan_nums; i++) {
channel = channel_set[i].ChannelNum;
freq = rtw_ch2freq(channel);
ch = ieee80211_get_channel(wiphy, freq);
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if (!ch)
continue;
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/* enable */
ch->flags = 0;
if (channel_set[i].dfs) {
/*
* before integrating with nl80211 flow
* bypass IEEE80211_CHAN_RADAR when configured with radar detection
* to prevent from hostapd blocking DFS channels
*/
if (rtw_rfctl_dfs_domain_unknown(rfctl))
ch->flags |= IEEE80211_CHAN_RADAR;
}
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if (channel_set[i].ScanType == SCAN_PASSIVE) {
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0))
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ch->flags |= IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN;
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#else
ch->flags |= IEEE80211_CHAN_NO_IR;
#endif
}
}
}
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static void rtw_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
{
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switch (request->initiator) {
case NL80211_REGDOM_SET_BY_DRIVER:
RTW_INFO("%s: %s\n", __func__, "NL80211_REGDOM_SET_BY_DRIVER");
break;
case NL80211_REGDOM_SET_BY_CORE:
RTW_INFO("%s: %s\n", __func__, "NL80211_REGDOM_SET_BY_CORE");
break;
case NL80211_REGDOM_SET_BY_USER:
RTW_INFO("%s: %s alpha2:%c%c\n", __func__, "NL80211_REGDOM_SET_BY_USER"
, request->alpha2[0], request->alpha2[1]);
rtw_set_country(wiphy_to_adapter(wiphy), request->alpha2);
break;
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
RTW_INFO("%s: %s\n", __func__, "NL80211_REGDOM_SET_BY_COUNTRY_IE");
break;
}
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rtw_regd_apply_flags(wiphy);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0))
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static int rtw_reg_notifier_return(struct wiphy *wiphy, struct regulatory_request *request)
{
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rtw_reg_notifier(wiphy, request);
return 0;
}
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#endif
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int rtw_regd_init(struct wiphy *wiphy)
{
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0))
wiphy->reg_notifier = rtw_reg_notifier_return;
#else
wiphy->reg_notifier = rtw_reg_notifier;
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#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0))
wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
wiphy->flags &= ~WIPHY_FLAG_STRICT_REGULATORY;
wiphy->flags &= ~WIPHY_FLAG_DISABLE_BEACON_HINTS;
#else
wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
wiphy->regulatory_flags &= ~REGULATORY_STRICT_REG;
wiphy->regulatory_flags &= ~REGULATORY_DISABLE_BEACON_HINTS;
#endif
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rtw_regd_apply_flags(wiphy);
return 0;
}
#endif /* CONFIG_IOCTL_CFG80211 */