static
OS_TIMER_FUNC(dfs_remove_from_nol)
{
struct dfs_nol_timer_arg *nol_arg;
struct ath_dfs *dfs;
struct ieee80211com *ic;
u_int16_t delfreq;
u_int16_t delchwidth;
OS_GET_TIMER_ARG(nol_arg, struct dfs_nol_timer_arg *);
dfs = nol_arg->dfs;
ic = dfs->ic;
delfreq = nol_arg->delfreq;
delchwidth = nol_arg->delchwidth;
/* Only operate in HOSTAP/IBSS */
if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
ic->ic_opmode != IEEE80211_M_IBSS)
goto done;
/* Delete the given NOL entry */
dfs_nol_delete(dfs, delfreq, delchwidth);
/* Update the wireless stack with the new NOL */
dfs_nol_update(dfs);
done:
OS_FREE(nol_arg);
return;
}
void
dfs_set_nol(struct ath_dfs *dfs, struct dfsreq_nolelem *dfs_nol, int nchan)
{
#define TIME_IN_MS 1000
u_int32_t nol_time_left_ms;
struct ieee80211_channel chan;
int i;
if (dfs == NULL) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS_NOL, "%s: sc_dfs is NULL\n", __func__);
return;
}
for (i = 0; i < nchan; i++)
{
nol_time_left_ms = adf_os_ticks_to_msecs(adf_os_ticks() - dfs_nol[i].nol_start_ticks);
if (nol_time_left_ms < dfs_nol[i].nol_timeout_ms) {
chan.ic_freq = dfs_nol[i].nol_freq;
chan.ic_flags= 0;
chan.ic_flagext = 0;
nol_time_left_ms = (dfs_nol[i].nol_timeout_ms - nol_time_left_ms);
dfs_nol_addchan(dfs, &chan, (nol_time_left_ms / TIME_IN_MS));
}
}
#undef TIME_IN_MS
dfs_nol_update(dfs);
}
/*
* Mark a channel as having interference detected upon it.
*
* This adds the interference marker to both the primary and
* extension channel.
*
* XXX TODO: make the NOL and channel interference logic a bit smarter
* so only the channel with the radar event is marked, rather than
* both the primary and extension.
*/
static void
dfs_channel_mark_radar(struct ath_dfs *dfs, struct ieee80211_channel *chan)
{
struct ieee80211_channel_list chan_info;
int i;
//chan->ic_flagext |= CHANNEL_INTERFERENCE;
/*
* If radar is detected in 40MHz mode, add both the primary and the
* extension channels to the NOL. chan is the channel data we return
* to the ath_dev layer which passes it on to the 80211 layer.
* As we want the AP to change channels and send out a CSA,
* we always pass back the primary channel data to the ath_dev layer.
*/
if ((dfs->dfs_rinfo.rn_use_nol == 1) &&
(dfs->ic->ic_opmode == IEEE80211_M_HOSTAP ||
#if ATH_SUPPORT_DFS && ATH_SUPPORT_STA_DFS
dfs->ic->ic_opmode == IEEE80211_M_IBSS ||
((dfs->ic->ic_opmode == IEEE80211_M_STA) &&
(ieee80211com_has_cap_ext(dfs->ic,IEEE80211_CEXT_STADFS))))) {
#else
dfs->ic->ic_opmode == IEEE80211_M_IBSS)) {
#endif
chan_info.cl_nchans= 0;
dfs->ic->ic_get_ext_chan_info (dfs->ic, &chan_info);
for (i = 0; i < chan_info.cl_nchans; i++)
{
if (chan_info.cl_channels[i] == NULL) {
DFS_PRINTK("%s: NULL channel\n", __func__);
} else {
chan_info.cl_channels[i]->ic_flagext |= CHANNEL_INTERFERENCE;
dfs_nol_addchan(dfs, chan_info.cl_channels[i], dfs->ath_dfs_nol_timeout);
}
}
/*
* Update the umac/driver channels with the new NOL information.
*/
dfs_nol_update(dfs);
}
}
