src/ap/ieee802_11_ht.c

29 	if (!hapd->iconf->ieee80211n || !hapd->iface->current_mode ||
39 	cap->a_mpdu_params = hapd->iface->current_mode->a_mpdu_params;
40 	os_memcpy(cap->supported_mcs_set, hapd->iface->current_mode->mcs_set,
97 	oper->operation_mode = host_to_le16(hapd->iface->ht_op_mode);
122 int hostapd_ht_operation_update(struct hostapd_iface *iface)
127 	if (!iface->conf->ieee80211n || iface->conf->ht_op_mode_fixed)
131 		   __func__, iface->ht_op_mode);
133 	if (!(iface->ht_op_mode & HT_OPER_OP_MODE_NON_GF_HT_STAS_PRESENT)
134 	    && iface->num_sta_ht_no_gf) {
135 		iface->ht_op_mode |= HT_OPER_OP_MODE_NON_GF_HT_STAS_PRESENT;
137 	} else if ((iface->ht_op_mode &
139 		   iface->num_sta_ht_no_gf == 0) {
140 		iface->ht_op_mode &= ~HT_OPER_OP_MODE_NON_GF_HT_STAS_PRESENT;
144 	if (!(iface->ht_op_mode & HT_OPER_OP_MODE_OBSS_NON_HT_STAS_PRESENT) &&
145 	    (iface->num_sta_no_ht || iface->olbc_ht)) {
146 		iface->ht_op_mode |= HT_OPER_OP_MODE_OBSS_NON_HT_STAS_PRESENT;
148 	} else if ((iface->ht_op_mode &
150 		   (iface->num_sta_no_ht == 0 && !iface->olbc_ht)) {
151 		iface->ht_op_mode &= ~HT_OPER_OP_MODE_OBSS_NON_HT_STAS_PRESENT;
155 	if (iface->num_sta_no_ht)
157 	else if (iface->conf->secondary_channel && iface->num_sta_ht_20mhz)
159 	else if (iface->olbc_ht)
164 	cur_op_mode = iface->ht_op_mode & HT_OPER_OP_MODE_HT_PROT_MASK;
166 		iface->ht_op_mode &= ~HT_OPER_OP_MODE_HT_PROT_MASK;
167 		iface->ht_op_mode |= new_op_mode;
172 		   __func__, iface->ht_op_mode, op_mode_changes);
178 static int is_40_allowed(struct hostapd_iface *iface, int channel)
184 	if (iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G)
187 	pri_freq = hostapd_hw_get_freq(iface->bss[0], iface->conf->channel);
189 	if (iface->conf->secondary_channel > 0)
209 	struct hostapd_iface *iface = hapd->iface;
221 	if (!(iface->conf->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
272 			if (is_40_allowed(iface, chan))
283 		   is_ht40_allowed, iface->num_sta_ht40_intolerant);
286 	    (iface->drv_flags & WPA_DRIVER_FLAGS_HT_2040_COEX)) {
287 		if (iface->conf->secondary_channel) {
292 			iface->conf->secondary_channel = 0;
293 			ieee802_11_set_beacons(iface);
295 		if (!iface->num_sta_ht40_intolerant &&
296 		    iface->conf->obss_interval) {
299 				iface->conf->obss_interval;
300 			eloop_cancel_timeout(ap_ht2040_timeout, hapd->iface,
303 					       hapd->iface, NULL);
343 void ht40_intolerant_add(struct hostapd_iface *iface, struct sta_info *sta)
345 	if (iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G)
355 	iface->num_sta_ht40_intolerant++;
356 	eloop_cancel_timeout(ap_ht2040_timeout, iface, NULL);
358 	if (iface->conf->secondary_channel &&
359 	    (iface->drv_flags & WPA_DRIVER_FLAGS_HT_2040_COEX)) {
360 		iface->conf->secondary_channel = 0;
361 		ieee802_11_set_beacons(iface);
366 void ht40_intolerant_remove(struct hostapd_iface *iface, struct sta_info *sta)
372 	iface->num_sta_ht40_intolerant--;
374 	if (iface->num_sta_ht40_intolerant == 0 &&
375 	    (iface->conf->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) &&
376 	    (iface->drv_flags & WPA_DRIVER_FLAGS_HT_2040_COEX)) {
378 			iface->conf->obss_interval;
382 		eloop_cancel_timeout(ap_ht2040_timeout, iface, NULL);
384 				       iface, NULL);
399 			hapd->iface->num_sta_ht_no_gf++;
404 			   hapd->iface->num_sta_ht_no_gf);
409 			hapd->iface->num_sta_ht_20mhz++;
414 			   hapd->iface->num_sta_ht_20mhz);
418 		ht40_intolerant_add(hapd->iface, sta);
426 		hapd->iface->num_sta_no_ht++;
432 			   hapd->iface->num_sta_no_ht);
444 	if (hostapd_ht_operation_update(hapd->iface) > 0)
445 		ieee802_11_set_beacons(hapd->iface);
484 	struct hostapd_iface *iface = eloop_data;
488 	iface->conf->secondary_channel = iface->secondary_ch;
489 	ieee802_11_set_beacons(iface);