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Differential D5143 Diff 12888 sys/net80211/ieee80211_scan_sw.c

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sys/net80211/ieee80211_scan_sw.c

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#define ROAM_RATE_HALF_DEFAULT 2*6 /* half-width 11a/g bss */ #define ROAM_RATE_HALF_DEFAULT 2*6 /* half-width 11a/g bss */
#define ROAM_RATE_QUARTER_DEFAULT 2*3 /* quarter-width 11a/g bss */ #define ROAM_RATE_QUARTER_DEFAULT 2*3 /* quarter-width 11a/g bss */
#define ROAM_MCS_11N_DEFAULT (1 | IEEE80211_RATE_MCS) /* 11n bss */ #define ROAM_MCS_11N_DEFAULT (1 | IEEE80211_RATE_MCS) /* 11n bss */
static void scan_curchan(struct ieee80211_scan_state *, unsigned long); static void scan_curchan(struct ieee80211_scan_state *, unsigned long);
static void scan_mindwell(struct ieee80211_scan_state *); static void scan_mindwell(struct ieee80211_scan_state *);
static void scan_signal(void *); static void scan_signal(void *);
static void scan_task(void *, int); static void scan_task(void *, int);
static void scan_end(struct ieee80211_scan_state *, int);
static void scan_done(struct ieee80211_scan_state *, int); static void scan_done(struct ieee80211_scan_state *, int);
MALLOC_DEFINE(M_80211_SCAN, "80211scan", "802.11 scan state"); MALLOC_DEFINE(M_80211_SCAN, "80211scan", "802.11 scan state");
static void static void
ieee80211_swscan_detach(struct ieee80211com *ic) ieee80211_swscan_detach(struct ieee80211com *ic)
{ {
struct ieee80211_scan_state *ss = ic->ic_scan; struct ieee80211_scan_state *ss = ic->ic_scan;
▲ Show 20 Lines • Show All 541 Lines • ▼ Show 20 Lines for (;;) {
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
"%s: loop start; scandone=%d\n", "%s: loop start; scandone=%d\n",
__func__, __func__,
scandone); scandone);
if (scandone || (ss->ss_flags & IEEE80211_SCAN_GOTPICK) || if (scandone || (ss->ss_flags & IEEE80211_SCAN_GOTPICK) ||
(ss_priv->ss_iflags & ISCAN_ABORT) || (ss_priv->ss_iflags & ISCAN_ABORT) ||
time_after(ticks + ss->ss_mindwell, ss_priv->ss_scanend)) time_after(ticks + ss->ss_mindwell, ss_priv->ss_scanend)) {
break; scan_end(ss, scandone);
return;
}
chan = ss->ss_chans[ss->ss_next++]; chan = ss->ss_chans[ss->ss_next++];
/* /*
* Watch for truncation due to the scan end time. * Watch for truncation due to the scan end time.
*/ */
if (time_after(ticks + ss->ss_maxdwell, ss_priv->ss_scanend)) if (time_after(ticks + ss->ss_maxdwell, ss_priv->ss_scanend))
maxdwell = ss_priv->ss_scanend - ticks; maxdwell = ss_priv->ss_scanend - ticks;
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if (ss_priv->ss_iflags & (ISCAN_CANCEL|ISCAN_ABORT)) if (ss_priv->ss_iflags & (ISCAN_CANCEL|ISCAN_ABORT))
continue; continue;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s: waiting\n", __func__); IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s: waiting\n", __func__);
/* Wait to be signalled to scan the next channel */ /* Wait to be signalled to scan the next channel */
cv_wait(&ss_priv->ss_scan_cv, IEEE80211_LOCK_OBJ(ic)); cv_wait(&ss_priv->ss_scan_cv, IEEE80211_LOCK_OBJ(ic));
} }
}
static void
scan_end(struct ieee80211_scan_state *ss, int scandone)
{
struct scan_state *ss_priv = SCAN_PRIVATE(ss);
struct ieee80211vap *vap = ss->ss_vap;
struct ieee80211com *ic = ss->ss_ic;
IEEE80211_LOCK_ASSERT(ic);
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s: out\n", __func__); IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s: out\n", __func__);
if (ss_priv->ss_iflags & ISCAN_ABORT) { if (ss_priv->ss_iflags & ISCAN_ABORT) {
scan_done(ss, scandone); scan_done(ss, scandone);
return; return;
} }
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