bool rtw_chbw_to_freq_range(u8 ch, u8 bw, u8 offset, u32 *hi, u32 *lo)
{
u8 c_ch;
u32 freq;
u32 hi_ret = 0, lo_ret = 0;
int i;
bool valid = _FALSE;
if (hi)
*hi = 0;
if (lo)
*lo = 0;
c_ch = rtw_get_center_ch(ch, bw, offset);
freq = rtw_ch2freq(c_ch);
if (!freq) {
rtw_warn_on(1);
goto exit;
}
if (bw == CHANNEL_WIDTH_80) {
hi_ret = freq + 40;
lo_ret = freq - 40;
} else if (bw == CHANNEL_WIDTH_40) {
hi_ret = freq + 20;
lo_ret = freq - 20;
} else if (bw == CHANNEL_WIDTH_20) {
hi_ret = freq + 10;
lo_ret = freq - 10;
} else {
rtw_warn_on(1);
}
if (hi)
*hi = hi_ret;
if (lo)
*lo = lo_ret;
valid = _TRUE;
exit:
return valid;
}
static void _rtw_reg_apply_flags(struct wiphy *wiphy)
{
#if 1 /* by channel plan */
_adapter *padapter = wiphy_to_adapter(wiphy);
u8 channel_plan = padapter->mlmepriv.ChannelPlan;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
RT_CHANNEL_INFO *channel_set = pmlmeext->channel_set;
u8 max_chan_nums = pmlmeext->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];
if (sband) {
for (j = 0; j < sband->n_channels; j++) {
ch = &sband->channels[j];
if (ch)
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);
if (ch) {
if (channel_set[i].ScanType == SCAN_PASSIVE
#if defined(CONFIG_DFS_MASTER)
&& rtw_odm_dfs_domain_unknown(wiphy_to_adapter(wiphy))
#endif
) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0))
ch->flags = (IEEE80211_CHAN_NO_IBSS | IEEE80211_CHAN_PASSIVE_SCAN);
#else
ch->flags = IEEE80211_CHAN_NO_IR;
#endif
} else
ch->flags = 0;
}
}
#else
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
unsigned int i, j;
u16 channels[37] = {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56,
60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
149, 153,
157, 161, 165
};
u16 channel;
u32 freq;
for (i = 0; i < NUM_NL80211_BANDS; i++) {
sband = wiphy->bands[i];
if (sband)
for (j = 0; j < sband->n_channels; j++) {
ch = &sband->channels[j];
if (ch)
ch->flags = IEEE80211_CHAN_DISABLED;
}
}
for (i = 0; i < 37; i++) {
channel = channels[i];
freq = rtw_ch2freq(channel);
ch = ieee80211_get_channel(wiphy, freq);
if (ch) {
if (channel <= 11)
ch->flags = 0;
else
ch->flags = 0; /* IEEE80211_CHAN_PASSIVE_SCAN; */
}
/* printk("%s: freq %d(%d) flag 0x%02X\n", __func__, freq, channel, ch->flags); */
}
#endif
}
