+Index: madwifi-trunk-r3776/net80211/ieee80211_scan_sta.c
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_scan_sta.c 2008-07-17 00:21:29.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_scan_sta.c 2008-07-17 03:10:02.000000000 +0200
+@@ -318,147 +318,6 @@
+ #undef ISPROBE
+ }
+
+-static struct ieee80211_channel *
+-find11gchannel(struct ieee80211com *ic, int i, int freq)
+-{
+- struct ieee80211_channel *c;
+- int j;
+-
+- /*
+- * The normal ordering in the channel list is b channel
+- * immediately followed by g so optimize the search for
+- * this. We'll still do a full search just in case.
+- */
+- for (j = i+1; j < ic->ic_nchans; j++) {
+- c = &ic->ic_channels[j];
+- if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
+- return c;
+- }
+- for (j = 0; j < i; j++) {
+- c = &ic->ic_channels[j];
+- if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
+- return c;
+- }
+- return NULL;
+-}
+-static const u_int chanflags[] = {
+- IEEE80211_CHAN_B, /* IEEE80211_MODE_AUTO */
+- IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
+- IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
+- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
+- IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
+- IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode look for AP in normal channel */
+- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
+- IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
+-};
+-
+-static void
+-add_channels(struct ieee80211com *ic,
+- struct ieee80211_scan_state *ss,
+- enum ieee80211_phymode mode, const u_int16_t freq[], int nfreq)
+-{
+- struct ieee80211_channel *c, *cg;
+- u_int modeflags;
+- int i;
+-
+- KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
+- modeflags = chanflags[mode];
+- for (i = 0; i < nfreq; i++) {
+- c = ieee80211_find_channel(ic, freq[i], modeflags);
+- if (c == NULL || isclr(ic->ic_chan_active, c->ic_ieee))
+- continue;
+- if (mode == IEEE80211_MODE_AUTO) {
+- /*
+- * XXX special-case 11b/g channels so we select
+- * the g channel if both are present.
+- */
+- if (IEEE80211_IS_CHAN_B(c) &&
+- (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
+- c = cg;
+- }
+- if (ss->ss_last >= IEEE80211_SCAN_MAX)
+- break;
+- ss->ss_chans[ss->ss_last++] = c;
+- }
+-}
+-
+-static const u_int16_t rcl1[] = /* 8 FCC channel: 52, 56, 60, 64, 36, 40, 44, 48 */
+-{ 5260, 5280, 5300, 5320, 5180, 5200, 5220, 5240 };
+-static const u_int16_t rcl2[] = /* 4 MKK channels: 34, 38, 42, 46 */
+-{ 5170, 5190, 5210, 5230 };
+-static const u_int16_t rcl3[] = /* 2.4Ghz ch: 1,6,11,7,13 */
+-{ 2412, 2437, 2462, 2442, 2472 };
+-static const u_int16_t rcl4[] = /* 5 FCC channel: 149, 153, 161, 165 */
+-{ 5745, 5765, 5785, 5805, 5825 };
+-static const u_int16_t rcl7[] = /* 11 ETSI channel: 100,104,108,112,116,120,124,128,132,136,140 */
+-{ 5500, 5520, 5540, 5560, 5580, 5600, 5620, 5640, 5660, 5680, 5700 };
+-static const u_int16_t rcl8[] = /* 2.4Ghz ch: 2,3,4,5,8,9,10,12 */
+-{ 2417, 2422, 2427, 2432, 2447, 2452, 2457, 2467 };
+-static const u_int16_t rcl9[] = /* 2.4Ghz ch: 14 */
+-{ 2484 };
+-static const u_int16_t rcl10[] = /* Added Korean channels 2312-2372 */
+-{ 2312, 2317, 2322, 2327, 2332, 2337, 2342, 2347, 2352, 2357, 2362, 2367, 2372 };
+-static const u_int16_t rcl11[] = /* Added Japan channels in 4.9/5.0 spectrum */
+-{ 5040, 5060, 5080, 4920, 4940, 4960, 4980 };
+-#ifdef ATH_TURBO_SCAN
+-static const u_int16_t rcl5[] = /* 3 static turbo channels */
+-{ 5210, 5250, 5290 };
+-static const u_int16_t rcl6[] = /* 2 static turbo channels */
+-{ 5760, 5800 };
+-static const u_int16_t rcl6x[] = /* 4 FCC3 turbo channels */
+-{ 5540, 5580, 5620, 5660 };
+-static const u_int16_t rcl12[] = /* 2.4Ghz Turbo channel 6 */
+-{ 2437 };
+-static const u_int16_t rcl13[] = /* dynamic Turbo channels */
+-{ 5200, 5240, 5280, 5765, 5805 };
+-#endif /* ATH_TURBO_SCAN */
+-
+-struct scanlist {
+- u_int16_t mode;
+- u_int16_t count;
+- const u_int16_t *list;
+-};
+-
+-#define IEEE80211_MODE_TURBO_STATIC_A IEEE80211_MODE_MAX
+-#define X(a) .count = sizeof(a)/sizeof(a[0]), .list = a
+-
+-static const struct scanlist staScanTable[] = {
+- { IEEE80211_MODE_11B, X(rcl3) },
+- { IEEE80211_MODE_11A, X(rcl1) },
+- { IEEE80211_MODE_11A, X(rcl2) },
+- { IEEE80211_MODE_11B, X(rcl8) },
+- { IEEE80211_MODE_11B, X(rcl9) },
+- { IEEE80211_MODE_11A, X(rcl4) },
+-#ifdef ATH_TURBO_SCAN
+- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl5) },
+- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl6) },
+- { IEEE80211_MODE_TURBO_A, X(rcl6x) },
+- { IEEE80211_MODE_TURBO_A, X(rcl13) },
+-#endif /* ATH_TURBO_SCAN */
+- { IEEE80211_MODE_11A, X(rcl7) },
+- { IEEE80211_MODE_11B, X(rcl10) },
+- { IEEE80211_MODE_11A, X(rcl11) },
+-#ifdef ATH_TURBO_SCAN
+- { IEEE80211_MODE_TURBO_G, X(rcl12) },
+-#endif /* ATH_TURBO_SCAN */
+- { .list = NULL }
+-};
+-
+-#undef X
+-
+-static int
+-checktable(const struct scanlist *scan, const struct ieee80211_channel *c)
+-{
+- int i;
+-
+- for (; scan->list != NULL; scan++) {
+- for (i = 0; i < scan->count; i++)
+- if (scan->list[i] == c->ic_freq)
+- return 1;
+- }
+- return 0;
+-}
+-
+ /*
+ * Start a station-mode scan by populating the channel list.
+ */
+@@ -467,81 +326,11 @@
+ {
+ struct ieee80211com *ic = vap->iv_ic;
+ struct sta_table *st = ss->ss_priv;
+- const struct scanlist *scan;
+- enum ieee80211_phymode mode;
+- struct ieee80211_channel *c;
+- int i;
+
+ ss->ss_last = 0;
+- /*
+- * Use the table of ordered channels to construct the list
+- * of channels for scanning. Any channels in the ordered
+- * list not in the master list will be discarded.
+- */
+- for (scan = staScanTable; scan->list != NULL; scan++) {
+- mode = scan->mode;
+- if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
+- /*
+- * If a desired mode was specified, scan only
+- * channels that satisfy that constraint.
+- */
+- if (vap->iv_des_mode != mode) {
+- /*
+- * The scan table marks 2.4Ghz channels as b
+- * so if the desired mode is 11g, then use
+- * the 11b channel list but upgrade the mode.
+- */
+- if (vap->iv_des_mode != IEEE80211_MODE_11G ||
+- mode != IEEE80211_MODE_11B)
+- continue;
+- mode = IEEE80211_MODE_11G; /* upgrade */
+- }
+- } else {
+- /*
+- * This lets ieee80211_scan_add_channels
+- * upgrade an 11b channel to 11g if available.
+- */
+- if (mode == IEEE80211_MODE_11B)
+- mode = IEEE80211_MODE_AUTO;
+- }
+- /* XR does not operate on turbo channels */
+- if ((vap->iv_flags & IEEE80211_F_XR) &&
+- (mode == IEEE80211_MODE_TURBO_A ||
+- mode == IEEE80211_MODE_TURBO_G))
+- continue;
+- /*
+- * Add the list of the channels; any that are not
+- * in the master channel list will be discarded.
+- */
+- add_channels(ic, ss, mode, scan->list, scan->count);
+- }
+-
+- /*
+- * Add the channels from the ic (from HAL) that are not present
+- * in the staScanTable.
+- */
+- for (i = 0; i < ic->ic_nchans; i++) {
+- c = &ic->ic_channels[i];
+- /*
+- * scan dynamic turbo channels in normal mode.
+- */
+- if (IEEE80211_IS_CHAN_DTURBO(c))
+- continue;
+- mode = ieee80211_chan2mode(c);
+- if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
+- /*
+- * If a desired mode was specified, scan only
+- * channels that satisfy that constraint.
+- */
+- if (vap->iv_des_mode != mode)
+- continue;
+-
+- }
+- if (!checktable(staScanTable, c))
+- ss->ss_chans[ss->ss_last++] = c;
+- }
+-
++ ieee80211_scan_add_channels(ic, ss, vap->iv_des_mode);
+ ss->ss_next = 0;
++
+ /* XXX tunables */
+ /*
+ * The scanner will stay on station for ss_maxdwell ms (using a
+@@ -750,17 +539,7 @@
+ fail = 0;
+ if (isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, se->se_chan)))
+ fail |= 0x01;
+- /*
+- * NB: normally the desired mode is used to construct
+- * the channel list, but it's possible for the scan
+- * cache to include entries for stations outside this
+- * list so we check the desired mode here to weed them
+- * out.
+- */
+- if (vap->iv_des_mode != IEEE80211_MODE_AUTO &&
+- (se->se_chan->ic_flags & IEEE80211_CHAN_ALLTURBO) !=
+- chanflags[vap->iv_des_mode])
+- fail |= 0x01;
++
+ if (vap->iv_opmode == IEEE80211_M_IBSS) {
+ if ((se->se_capinfo & IEEE80211_CAPINFO_IBSS) == 0)
+ fail |= 0x02;
+@@ -1175,78 +954,6 @@
+ .scan_default = ieee80211_sta_join,
+ };
+
+-/*
+- * Start an adhoc-mode scan by populating the channel list.
+- */
+-static int
+-adhoc_start(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
+-{
+- struct ieee80211com *ic = vap->iv_ic;
+- struct sta_table *st = ss->ss_priv;
+- const struct scanlist *scan;
+- enum ieee80211_phymode mode;
+-
+- ss->ss_last = 0;
+- /*
+- * Use the table of ordered channels to construct the list
+- * of channels for scanning. Any channels in the ordered
+- * list not in the master list will be discarded.
+- */
+- for (scan = staScanTable; scan->list != NULL; scan++) {
+- mode = scan->mode;
+- if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
+- /*
+- * If a desired mode was specified, scan only
+- * channels that satisfy that constraint.
+- */
+- if (vap->iv_des_mode != mode) {
+- /*
+- * The scan table marks 2.4Ghz channels as b
+- * so if the desired mode is 11g, then use
+- * the 11b channel list but upgrade the mode.
+- */
+- if (vap->iv_des_mode != IEEE80211_MODE_11G ||
+- mode != IEEE80211_MODE_11B)
+- continue;
+- mode = IEEE80211_MODE_11G; /* upgrade */
+- }
+- } else {
+- /*
+- * This lets ieee80211_scan_add_channels
+- * upgrade an 11b channel to 11g if available.
+- */
+- if (mode == IEEE80211_MODE_11B)
+- mode = IEEE80211_MODE_AUTO;
+- }
+- /* XR does not operate on turbo channels */
+- if ((vap->iv_flags & IEEE80211_F_XR) &&
+- (mode == IEEE80211_MODE_TURBO_A ||
+- mode == IEEE80211_MODE_TURBO_G))
+- continue;
+- /*
+- * Add the list of the channels; any that are not
+- * in the master channel list will be discarded.
+- */
+- add_channels(ic, ss, mode, scan->list, scan->count);
+- }
+- ss->ss_next = 0;
+- /* XXX tunables */
+- ss->ss_mindwell = msecs_to_jiffies(200); /* 200ms */
+- ss->ss_maxdwell = msecs_to_jiffies(200); /* 200ms */
+-
+-#ifdef IEEE80211_DEBUG
+- if (ieee80211_msg_scan(vap)) {
+- printk("%s: scan set ", vap->iv_dev->name);
+- ieee80211_scan_dump_channels(ss);
+- printk(" dwell min %ld max %ld\n",
+- ss->ss_mindwell, ss->ss_maxdwell);
+- }
+-#endif /* IEEE80211_DEBUG */
+-
+- st->st_newscan = 1;
+-
+- return 0;
+-}
+
+ /*
+ * Select a channel to start an adhoc network on.
+@@ -1412,7 +1119,7 @@
+ .scan_name = "default",
+ .scan_attach = sta_attach,
+ .scan_detach = sta_detach,
+- .scan_start = adhoc_start,
++ .scan_start = sta_start,
+ .scan_restart = sta_restart,
+ .scan_cancel = sta_cancel,
+ .scan_end = adhoc_pick_bss,
+Index: madwifi-trunk-r3776/net80211/ieee80211.c
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211.c 2008-07-17 02:56:18.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211.c 2008-07-17 03:07:53.000000000 +0200
+@@ -292,6 +292,11 @@
+ ("channel with bogus ieee number %u", c->ic_ieee));
+ setbit(ic->ic_chan_avail, c->ic_ieee);
+
++ if (c->ic_scanflags & IEEE80211_NOSCAN_DEFAULT)
++ c->ic_scanflags |= IEEE80211_NOSCAN_SET;
++ else
++ c->ic_scanflags &= ~IEEE80211_NOSCAN_SET;
++
+ /* Identify mode capabilities. */
+ if (IEEE80211_IS_CHAN_A(c))
+ ic->ic_modecaps |= 1 << IEEE80211_MODE_11A;
+Index: madwifi-trunk-r3776/net80211/_ieee80211.h
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/_ieee80211.h 2008-07-17 00:21:29.000000000 +0200
++++ madwifi-trunk-r3776/net80211/_ieee80211.h 2008-07-17 03:07:53.000000000 +0200
+@@ -132,6 +132,11 @@
+ IEEE80211_SCAN_FIRST = 2, /* take first suitable candidate */
+ };
+
++enum ieee80211_scanflags {
++ IEEE80211_NOSCAN_DEFAULT = (1 << 0),
++ IEEE80211_NOSCAN_SET = (1 << 1),
++};
++
+ /*
+ * Channels are specified by frequency and attributes.
+ */
+@@ -142,6 +147,7 @@
+ int8_t ic_maxregpower; /* maximum regulatory tx power in dBm */
+ int8_t ic_maxpower; /* maximum tx power in dBm */
+ int8_t ic_minpower; /* minimum tx power in dBm */
++ u_int8_t ic_scanflags;
+ };
+
+ #define IEEE80211_CHAN_MAX 255
+Index: madwifi-trunk-r3776/net80211/ieee80211_ioctl.h
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_ioctl.h 2008-07-17 02:56:52.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_ioctl.h 2008-07-17 03:07:53.000000000 +0200
+@@ -556,6 +556,7 @@
+ #define IEEE80211_IOCTL_WDSADDMAC (SIOCIWFIRSTPRIV+26)
+ #define IEEE80211_IOCTL_WDSDELMAC (SIOCIWFIRSTPRIV+28)
+ #define IEEE80211_IOCTL_KICKMAC (SIOCIWFIRSTPRIV+30)
++#define IEEE80211_IOCTL_SETSCANLIST (SIOCIWFIRSTPRIV+31)
+
+ enum {
+ IEEE80211_WMMPARAMS_CWMIN = 1,
+Index: madwifi-trunk-r3776/net80211/ieee80211_scan_ap.c
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_scan_ap.c 2008-07-17 02:20:50.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_scan_ap.c 2008-07-17 03:09:25.000000000 +0200
+@@ -200,131 +200,7 @@
+
+ static int ap_flush(struct ieee80211_scan_state *);
+ static void action_tasklet(IEEE80211_TQUEUE_ARG);
+-static struct ieee80211_channel *find11gchannel(struct ieee80211com *ic,
+- int i, int freq);
+
+-static const u_int chanflags[] = {
+- IEEE80211_CHAN_B, /* IEEE80211_MODE_AUTO */
+- IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
+- IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
+- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
+- IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
+- IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode
+- * look for AP in
+- * normal channel
+- */
+- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
+- IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
+-};
+-
+-static const u_int16_t rcl1[] = /* 8 FCC channel: 52, 56, 60, 64,
+- * 36, 40, 44, 48 */
+-{ 5260, 5280, 5300, 5320, 5180, 5200, 5220, 5240 };
+-static const u_int16_t rcl2[] = /* 4 MKK channels: 34, 38, 42, 46 */
+-{ 5170, 5190, 5210, 5230 };
+-static const u_int16_t rcl3[] = /* 2.4Ghz ch: 1,6,11,7,13 */
+-{ 2412, 2437, 2462, 2442, 2472 };
+-static const u_int16_t rcl4[] = /* 5 FCC channel: 149, 153, 161, 165 */
+-{ 5745, 5765, 5785, 5805, 5825 };
+-static const u_int16_t rcl7[] = /* 11 ETSI channel: 100, 104, 108, 112,
+- * 116, 120, 124, 128,
+- * 132, 136, 140 */
+-{ 5500, 5520, 5540, 5560, 5580, 5600, 5620, 5640, 5660, 5680, 5700 };
+-static const u_int16_t rcl8[] = /* 2.4Ghz ch: 2,3,4,5,8,9,10,12 */
+-{ 2417, 2422, 2427, 2432, 2447, 2452, 2457, 2467 };
+-static const u_int16_t rcl9[] = /* 2.4Ghz ch: 14 */
+-{ 2484 };
+-static const u_int16_t rcl10[] = /* Added Korean channels 2312-2372 */
+-{ 2312, 2317, 2322, 2327, 2332, 2337, 2342, 2347, 2352, 2357, 2362, 2367, 2372 };
+-static const u_int16_t rcl11[] = /* Added Japan channels in 4.9/5.0 spectrum */
+-{ 5040, 5060, 5080, 4920, 4940, 4960, 4980 };
+-#ifdef ATH_TURBO_SCAN
+-static const u_int16_t rcl5[] = /* 3 static turbo channels */
+-{ 5210, 5250, 5290 };
+-static const u_int16_t rcl6[] = /* 2 static turbo channels */
+-{ 5760, 5800 };
+-static const u_int16_t rcl6x[] = /* 4 FCC3 turbo channels */
+-{ 5540, 5580, 5620, 5660 };
+-static const u_int16_t rcl12[] = /* 2.4Ghz Turbo channel 6 */
+-{ 2437 };
+-static const u_int16_t rcl13[] = /* dynamic Turbo channels */
+-{ 5200, 5240, 5280, 5765, 5805 };
+-#endif /* ATH_TURBO_SCAN */
+-
+-struct scanlist {
+- u_int16_t mode;
+- u_int16_t count;
+- const u_int16_t *list;
+-};
+-
+-#define IEEE80211_MODE_TURBO_STATIC_A IEEE80211_MODE_MAX
+-#define X(a) .count = ARRAY_SIZE(a), .list = a
+-
+-static const struct scanlist staScanTable[] = {
+- { IEEE80211_MODE_11B, X(rcl3) },
+- { IEEE80211_MODE_11A, X(rcl1) },
+- { IEEE80211_MODE_11A, X(rcl2) },
+- { IEEE80211_MODE_11B, X(rcl8) },
+- { IEEE80211_MODE_11B, X(rcl9) },
+- { IEEE80211_MODE_11A, X(rcl4) },
+-#ifdef ATH_TURBO_SCAN
+- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl5) },
+- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl6) },
+- { IEEE80211_MODE_TURBO_A, X(rcl6x) },
+- { IEEE80211_MODE_TURBO_A, X(rcl13) },
+-#endif /* ATH_TURBO_SCAN */
+- { IEEE80211_MODE_11A, X(rcl7) },
+- { IEEE80211_MODE_11B, X(rcl10) },
+- { IEEE80211_MODE_11A, X(rcl11) },
+-#ifdef ATH_TURBO_SCAN
+- { IEEE80211_MODE_TURBO_G, X(rcl12) },
+-#endif /* ATH_TURBO_SCAN */
+- { .list = NULL }
+-};
+-
+-#undef X
+-/* This function must be invoked with locks acquired */
+-static void
+-add_channels(struct ieee80211com *ic,
+- struct ieee80211_scan_state *ss,
+- enum ieee80211_phymode mode, const u_int16_t freq[], int nfreq)
+-{
+- struct ieee80211_channel *c, *cg;
+- u_int modeflags;
+- int i;
+-
+- KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
+- modeflags = chanflags[mode];
+- for (i = 0; i < nfreq; i++) {
+- c = ieee80211_find_channel(ic, freq[i], modeflags);
+- if ((c == NULL) || isclr(ic->ic_chan_active, c->ic_ieee))
+- continue;
+- if (mode == IEEE80211_MODE_AUTO) {
+- /* XXX special-case 11b/g channels so we select
+- * the g channel if both are present. */
+- if (IEEE80211_IS_CHAN_B(c) &&
+- (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
+- c = cg;
+- }
+- if (ss->ss_last >= IEEE80211_SCAN_MAX)
+- break;
+- ss->ss_chans[ss->ss_last++] = c;
+- }
+-}
+-
+-/* This function must be invoked with locks acquired */
+-static int
+-checktable(const struct scanlist *scan, const struct ieee80211_channel *c)
+-{
+- int i;
+-
+- for (; scan->list != NULL; scan++) {
+- for (i = 0; i < scan->count; i++)
+- if (scan->list[i] == c->ic_freq)
+- return 1;
+- }
+- return 0;
+-}
+
+ /*
+ * Attach prior to any scanning work.
+@@ -398,29 +274,6 @@
+ ieee80211_saveie(iep, ie);
+ }
+
+-/* This function must be invoked with locks acquired */
+-static struct ieee80211_channel *
+-find11gchannel(struct ieee80211com *ic, int i, int freq)
+-{
+- struct ieee80211_channel *c;
+- int j;
+-
+- /* The normal ordering in the channel list is b channel
+- * immediately followed by g so optimize the search for
+- * this. We'll still do a full search just in case. */
+- for (j = i + 1; j < ic->ic_nchans; j++) {
+- c = &ic->ic_channels[j];
+- if ((c->ic_freq == freq) && IEEE80211_IS_CHAN_ANYG(c))
+- return c;
+- }
+- for (j = 0; j < i; j++) {
+- c = &ic->ic_channels[j];
+- if ((c->ic_freq == freq) && IEEE80211_IS_CHAN_ANYG(c))
+- return c;
+- }
+- return NULL;
+-}
+-
+ /*
+ * Start an ap scan by populating the channel list.
+ */
+@@ -429,90 +282,14 @@
+ {
+ struct ap_state *as = ss->ss_priv;
+ struct ieee80211com *ic = NULL;
+- const struct scanlist *sl = NULL;
+- struct ieee80211_channel *c = NULL;
+- int i;
+- unsigned int mode = 0;
+
+ SCAN_AP_LOCK_IRQ(as);
+ ic = vap->iv_ic;
+ /* Determine mode flags to match, or leave zero for auto mode */
+ as->as_vap_desired_mode = vap->iv_des_mode;
+ as->as_required_mode = 0;
+- if (as->as_vap_desired_mode != IEEE80211_MODE_AUTO) {
+- as->as_required_mode = chanflags[as->as_vap_desired_mode];
+- if ((vap->iv_ath_cap & IEEE80211_ATHC_TURBOP) &&
+- (as->as_required_mode != IEEE80211_CHAN_ST)) {
+- /* Fixup for dynamic turbo flags */
+- if (as->as_vap_desired_mode == IEEE80211_MODE_11G)
+- as->as_required_mode = IEEE80211_CHAN_108G;
+- else
+- as->as_required_mode = IEEE80211_CHAN_108A;
+- }
+- }
+-
+- ss->ss_last = 0;
+- /* Use the table of ordered channels to construct the list
+- * of channels for scanning. Any channels in the ordered
+- * list not in the master list will be discarded. */
+- for (sl = staScanTable; sl->list != NULL; sl++) {
+- mode = sl->mode;
+-
+- /* The scan table marks 2.4Ghz channels as b
+- * so if the desired mode is 11g, then use
+- * the 11b channel list but upgrade the mode. */
+- if (as->as_vap_desired_mode &&
+- (as->as_vap_desired_mode != mode) &&
+- (as->as_vap_desired_mode == IEEE80211_MODE_11G) &&
+- (mode == IEEE80211_MODE_11B))
+- mode = IEEE80211_MODE_11G;
+-
+- /* If we are in "AUTO" mode, upgrade the mode to auto.
+- * This lets add_channels upgrade an 11b channel to
+- * 11g if available. */
+- if (!as->as_vap_desired_mode && (mode == IEEE80211_MODE_11B))
+- mode = IEEE80211_MODE_AUTO;
+-
+- /* Add the list of the channels; any that are not
+- * in the master channel list will be discarded. */
+- add_channels(ic, ss, mode, sl->list, sl->count);
+- }
+-
+- /* Add the channels from the ic (from HAL) that are not present
+- * in the staScanTable, assuming they pass the sanity checks... */
+- for (i = 0; i < ic->ic_nchans; i++) {
+- c = &ic->ic_channels[i];
+-
+- /* XR is not supported on turbo channels */
+- if (IEEE80211_IS_CHAN_TURBO(c) && vap->iv_flags & IEEE80211_F_XR)
+- continue;
++ ieee80211_scan_add_channels(ic, ss, vap->iv_des_mode);
+
+- /* Dynamic channels are scanned in base mode */
+- if (!as->as_required_mode && !IEEE80211_IS_CHAN_ST(c))
+- continue;
+-
+- /* Use any 11g channel instead of 11b one. */
+- if (vap->iv_des_mode == IEEE80211_MODE_AUTO &&
+- IEEE80211_IS_CHAN_B(c) &&
+- find11gchannel(ic, i, c->ic_freq))
+- continue;
+-
+- /* Do not add channels already put into the scan list by the
+- * scan table - these have already been filtered by mode
+- * and for whether they are in the active channel list. */
+- if (checktable(staScanTable, c))
+- continue;
+-
+- /* Make sure the channel is active */
+- if ((c == NULL) || isclr(ic->ic_chan_active, c->ic_ieee))
+- continue;
+-
+- /* Don't overrun */
+- if (ss->ss_last >= IEEE80211_SCAN_MAX)
+- break;
+-
+- ss->ss_chans[ss->ss_last++] = c;
+- }
+ ss->ss_next = 0;
+ /* XXX tunables */
+ ss->ss_mindwell = msecs_to_jiffies(200); /* 200ms */
+@@ -834,13 +611,6 @@
+ if (IEEE80211_IS_CHAN_RADAR(c->chan))
+ continue;
+
+- /* Do not select 802.11a ST if mode is specified and is not
+- * 802.11a ST */
+- if (as->as_required_mode &&
+- IEEE80211_IS_CHAN_STURBO(c->chan) &&
+- (as->as_vap_desired_mode != IEEE80211_MODE_TURBO_STATIC_A))
+- continue;
+-
+ /* Verify mode matches any fixed mode specified */
+ if ((c->chan->ic_flags & as->as_required_mode) !=
+ as->as_required_mode)
+Index: madwifi-trunk-r3776/net80211/ieee80211_scan.c
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_scan.c 2008-07-17 00:49:51.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_scan.c 2008-07-17 03:07:53.000000000 +0200
+@@ -969,6 +969,80 @@
+ }
+ }
+
++static const u_int chanflags[] = {
++ 0, /* IEEE80211_MODE_AUTO */
++ IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
++ IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
++ IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
++ IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
++ IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode look for AP in normal channel */
++ IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
++ IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
++};
++
++static struct ieee80211_channel *
++find11gchannel(struct ieee80211com *ic, int i, int freq)
++{
++ struct ieee80211_channel *c;
++ int j;
++
++ /*
++ * The normal ordering in the channel list is b channel
++ * immediately followed by g so optimize the search for
++ * this. We'll still do a full search just in case.
++ */
++ for (j = i+1; j < ic->ic_nchans; j++) {
++ c = &ic->ic_channels[j];
++ if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
++ return c;
++ }
++ for (j = 0; j < i; j++) {
++ c = &ic->ic_channels[j];
++ if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
++ return c;
++ }
++ return NULL;
++}
++
++
++void
++ieee80211_scan_add_channels(struct ieee80211com *ic,
++ struct ieee80211_scan_state *ss,
++ enum ieee80211_phymode mode)
++{
++ struct ieee80211_channel *c, *cg;
++ u_int modeflags;
++ int i;
++
++ KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
++ modeflags = chanflags[mode];
++ for (i = 0; i < ic->ic_nchans; i++) {
++ c = &ic->ic_channels[i];
++ if (c == NULL || isclr(ic->ic_chan_active, c->ic_ieee))
++ continue;
++ if (c->ic_scanflags & IEEE80211_NOSCAN_SET)
++ continue;
++ if (modeflags &&
++ ((c->ic_flags & IEEE80211_CHAN_ALLTURBO) !=
++ (modeflags & IEEE80211_CHAN_ALLTURBO)))
++ continue;
++ if (mode == IEEE80211_MODE_AUTO) {
++ /*
++ * XXX special-case 11b/g channels so we select
++ * the g channel if both are present.
++ */
++ if (IEEE80211_IS_CHAN_B(c) &&
++ (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
++ continue;
++ }
++ if (ss->ss_last >= IEEE80211_SCAN_MAX)
++ break;
++ ss->ss_chans[ss->ss_last++] = c;
++ }
++}
++EXPORT_SYMBOL(ieee80211_scan_add_channels);
++
++
+ /*
+ * Execute radar channel change. This is called when a radar/dfs
+ * signal is detected. AP mode only. Return 1 on success, 0 on
+Index: madwifi-trunk-r3776/net80211/ieee80211_scan.h
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_scan.h 2008-07-17 00:21:29.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_scan.h 2008-07-17 03:07:53.000000000 +0200
+@@ -219,4 +219,7 @@
+ void ieee80211_scanner_unregister(enum ieee80211_opmode,
+ const struct ieee80211_scanner *);
+ void ieee80211_scanner_unregister_all(const struct ieee80211_scanner *);
++void ieee80211_scan_add_channels(struct ieee80211com *ic,
++ struct ieee80211_scan_state *ss,
++ enum ieee80211_phymode mode);
+ #endif /* _NET80211_IEEE80211_SCAN_H_ */
+Index: madwifi-trunk-r3776/net80211/ieee80211_wireless.c
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_wireless.c 2008-07-17 02:56:18.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_wireless.c 2008-07-17 03:08:16.000000000 +0200
+@@ -3911,6 +3911,106 @@
+ return ieee80211_ioctl_setmlme(dev, info, w, (char *)&mlme);
+ }
+
++static inline void setflag(struct ieee80211_channel *c, int flag)
++{
++ if (flag)
++ c->ic_scanflags |= IEEE80211_NOSCAN_SET;
++ else
++ c->ic_scanflags &= ~IEEE80211_NOSCAN_SET;
++}
++
++static void setscanflag(struct ieee80211com *ic, int min, int max, int set)
++{
++ int i;
++
++ for (i = 0; i < ic->ic_nchans; i++) {
++ struct ieee80211_channel *c = &ic->ic_channels[i];
++
++ if (min == -1) {
++ if (!(c->ic_scanflags & IEEE80211_NOSCAN_DEFAULT))
++ setflag(c, set);
++ } else if ((c->ic_freq >= min) && (c->ic_freq <= max)) {
++ setflag(c, set);
++ }
++ }
++}
++
++static int
++ieee80211_ioctl_setscanlist(struct net_device *dev,
++ struct iw_request_info *info,
++ struct iw_point *data, char *extra)
++{
++ struct ieee80211vap *vap = dev->priv;
++ struct ieee80211com *ic = vap->iv_ic;
++ char *s, *next;
++ int val = 1;
++
++ if (data->length <= 0)
++ return -EINVAL;
++
++ s = kmalloc(data->length + 1, GFP_KERNEL);
++ if (!s)
++ return -ENOMEM;
++
++ memset(s, 0, data->length + 1);
++ if (copy_from_user(s, data->pointer, data->length))
++ return -EFAULT;
++
++ s[data->length - 1] = '\0'; /* ensure null termination */
++
++ switch(*s) {
++ case '-':
++ val = 1;
++ break;
++ case '+':
++ val = 0;
++ break;
++ default:
++ goto error;
++ }
++ s++;
++ next = s;
++ do {
++ next = strchr(s, ',');
++ if (next) {
++ *next = 0;
++ next++;
++ }
++ if (!strcmp(s, "ALL")) {
++ setscanflag(ic, 0, 10000, val);
++ } else if (!strcmp(s, "REG")) {
++ setscanflag(ic, -1, -1, val);
++ } else {
++ int min, max;
++ char *n, *end = NULL;
++
++ n = strchr(s, '-');
++ if (n) {
++ *n = 0;
++ n++;
++ }
++ min = simple_strtoul(s, &end, 10);
++ if (end && *end)
++ goto error;
++ if (n) {
++ max = simple_strtoul(n, &end, 10);
++ if (end && *end)
++ goto error;
++ } else {
++ max = min;
++ }
++ setscanflag(ic, min, max, val);
++ }
++ s = next;
++ } while (next);
++ return 0;
++
++error:
++ if (s)
++ kfree(s);
++ return -EINVAL;
++}
++
+ static int
+ ieee80211_ioctl_addmac(struct net_device *dev, struct iw_request_info *info,
+ void *w, char *extra)
+@@ -5712,6 +5812,8 @@
+ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "minrate"},
+ {IEEE80211_PARAM_MINRATE,
+ 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_minrate"},
++ { IEEE80211_IOCTL_SETSCANLIST,
++ IW_PRIV_TYPE_CHAR | 255, 0, "setscanlist"},
+
+ #ifdef ATH_REVERSE_ENGINEERING
+ /*
+@@ -5809,6 +5911,7 @@
+ set_priv(IEEE80211_IOCTL_WDSADDMAC, ieee80211_ioctl_wdsmac),
+ set_priv(IEEE80211_IOCTL_WDSDELMAC, ieee80211_ioctl_wdsdelmac),
+ set_priv(IEEE80211_IOCTL_KICKMAC, ieee80211_ioctl_kickmac),
++ set_priv(IEEE80211_IOCTL_SETSCANLIST, ieee80211_ioctl_setscanlist),
+ #ifdef ATH_REVERSE_ENGINEERING
+ set_priv(IEEE80211_IOCTL_READREG, ieee80211_ioctl_readreg),
+ set_priv(IEEE80211_IOCTL_WRITEREG, ieee80211_ioctl_writereg),
projects / openwrt.git / blobdiff