static void
ieee80211_swscan_detach(struct ieee80211com *ic)
{
struct ieee80211_scan_state *ss = ic->ic_scan;
if (ss != NULL) {
scan_signal(ss, ISCAN_ABORT);
ieee80211_draintask(ic, &SCAN_PRIVATE(ss)->ss_scan_start);
taskqueue_drain_timeout(ic->ic_tq,
&SCAN_PRIVATE(ss)->ss_scan_curchan);
KASSERT((ic->ic_flags & IEEE80211_F_SCAN) == 0,
("scan still running"));
/*
* For now, do the ss_ops detach here rather
* than ieee80211_scan_detach().
*
* I'll figure out how to cleanly split things up
* at a later date.
*/
if (ss->ss_ops != NULL) {
ss->ss_ops->scan_detach(ss);
ss->ss_ops = NULL;
}
ic->ic_scan = NULL;
IEEE80211_FREE(SCAN_PRIVATE(ss), M_80211_SCAN);
}
}
void
ieee80211_scan_detach(struct ieee80211com *ic)
{
struct ieee80211_scan_state *ss = ic->ic_scan;
if (ss != NULL) {
IEEE80211_LOCK(ic);
SCAN_PRIVATE(ss)->ss_iflags |= ISCAN_ABORT;
scan_signal(ss);
IEEE80211_UNLOCK(ic);
ieee80211_draintask(ic, &SCAN_PRIVATE(ss)->ss_scan_task);
callout_drain(&SCAN_PRIVATE(ss)->ss_scan_timer);
KASSERT((ic->ic_flags & IEEE80211_F_SCAN) == 0,
("scan still running"));
if (ss->ss_ops != NULL) {
ss->ss_ops->scan_detach(ss);
ss->ss_ops = NULL;
}
ic->ic_scan = NULL;
free(SCAN_PRIVATE(ss), M_80211_SCAN);
}
#if defined(__ANTARES__)
ieee80211_scan_sta_uninit();
#endif
}
/*
* Handle mindwell requirements completed; initiate a channel
* change to the next channel asap.
*/
static void
scan_mindwell(struct ieee80211_scan_state *ss)
{
struct ieee80211com *ic = ss->ss_ic;
ic = ss->ss_ic;
scan_signal(ss);
}
/*
* Handle mindwell requirements completed; initiate a channel
* change to the next channel asap.
*/
static void
scan_mindwell(struct ieee80211_scan_state *ss)
{
IEEE80211_DPRINTF(ss->ss_vap, IEEE80211_MSG_SCAN, "%s: called\n",
__func__);
scan_signal(ss, 0);
}
/*
* Handle mindwell requirements completed; initiate a channel
* change to the next channel asap.
*/
static void
scan_mindwell(struct ieee80211_scan_state *ss)
{
struct ieee80211com *ic = ss->ss_ic;
IEEE80211_LOCK(ic);
scan_signal(ss);
IEEE80211_UNLOCK(ic);
}
static void
scan_signal_callout(void *arg)
{
struct ieee80211_scan_state *ss = (struct ieee80211_scan_state *) arg;
wlan_serialize_enter();
scan_signal(ss);
wlan_serialize_exit();
}
/*
* Public access to scan_next for drivers that manage
* scanning themselves (e.g. for firmware-based devices).
*/
void
ieee80211_scan_next(struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_scan_state *ss = ic->ic_scan;
/* wake up the scan task */
scan_signal(ss);
}
/*
* Manually switch to the next channel in the channel list.
* Provided for drivers that manage scanning themselves
* (e.g. for firmware-based devices).
*/
static void
ieee80211_swscan_scan_next(struct ieee80211vap *vap)
{
struct ieee80211_scan_state *ss = vap->iv_ic->ic_scan;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s: called\n", __func__);
/* wake up the scan task */
scan_signal(ss, 0);
}
/*
* Public access to scan_next for drivers that are not able to scan single
* channels (e.g. for firmware-based devices).
*/
void
ieee80211_scan_done(struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_scan_state *ss;
ss = ic->ic_scan;
ss->ss_next = ss->ss_last; /* all channels are complete */
scan_signal(ss);
}
void
ieee80211_scan_vdetach(struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_scan_state *ss;
ss = ic->ic_scan;
if (ss != NULL && ss->ss_vap == vap) {
if (ic->ic_flags & IEEE80211_F_SCAN) {
SCAN_PRIVATE(ss)->ss_iflags |= ISCAN_ABORT;
scan_signal(ss);
}
if (ss->ss_ops != NULL) {
ss->ss_ops->scan_detach(ss);
ss->ss_ops = NULL;
}
ss->ss_vap = NULL;
}
}
/*
* Cancel any scan currently going on.
*/
void
ieee80211_cancel_anyscan(struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_scan_state *ss = ic->ic_scan;
if ((ic->ic_flags & IEEE80211_F_SCAN) &&
(SCAN_PRIVATE(ss)->ss_iflags & ISCAN_CANCEL) == 0) {
IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
"%s: cancel %s scan\n", __func__,
ss->ss_flags & IEEE80211_SCAN_ACTIVE ?
"active" : "passive");
/* clear bg scan NOPICK and mark cancel request */
ss->ss_flags &= ~IEEE80211_SCAN_NOPICK;
SCAN_PRIVATE(ss)->ss_iflags |= ISCAN_CANCEL;
/* wake up the scan task */
scan_signal(ss);
}
}
void
ieee80211_scan_detach(struct ieee80211com *ic)
{
struct ieee80211_scan_state *ss = ic->ic_scan;
if (ss != NULL) {
SCAN_PRIVATE(ss)->ss_iflags |= ISCAN_ABORT;
scan_signal(ss);
ieee80211_draintask(ic, &SCAN_PRIVATE(ss)->ss_scan_task);
callout_stop(&SCAN_PRIVATE(ss)->ss_scan_timer);
KASSERT((ic->ic_flags & IEEE80211_F_SCAN) == 0,
("scan still running"));
if (ss->ss_ops != NULL) {
ss->ss_ops->scan_detach(ss);
ss->ss_ops = NULL;
}
ic->ic_scan = NULL;
kfree(SCAN_PRIVATE(ss), M_80211_SCAN);
}
}
