76 static int dfs_channel_available(struct hostapd_channel_data *chan,  in dfs_channel_available()  argument
83 		if ((chan->flag & HOSTAPD_CHAN_RADAR) &&  in dfs_channel_available()
84 		    (chan->flag & HOSTAPD_CHAN_DFS_MASK) ==  in dfs_channel_available()
95 	if (type == DFS_AVAILABLE && (chan->flag & HOSTAPD_CHAN_RADAR) &&  in dfs_channel_available()
96 	    ((chan->flag & HOSTAPD_CHAN_DFS_MASK) !=  in dfs_channel_available()
100 	if (chan->flag & HOSTAPD_CHAN_DISABLED)  in dfs_channel_available()
102 	if ((chan->flag & HOSTAPD_CHAN_RADAR) &&  in dfs_channel_available()
103 	    ((chan->flag & HOSTAPD_CHAN_DFS_MASK) ==  in dfs_channel_available()
110 static int dfs_is_chan_allowed(struct hostapd_channel_data *chan, int n_chans)  in dfs_is_chan_allowed()  argument
150 		if (chan->chan == allowed[i])  in dfs_is_chan_allowed()
176 	struct hostapd_channel_data *first_chan, *chan;  in dfs_chan_range_available()  local
197 		chan = dfs_get_chan_data(mode, first_chan->freq + i * 20,  in dfs_chan_range_available()
199 		if (!chan) {  in dfs_chan_range_available()
207 		if (!chan_bw_allowed(chan, bw, 1, !i)) {  in dfs_chan_range_available()
213 		if (!dfs_channel_available(chan, type)) {  in dfs_chan_range_available()
225 			  struct hostapd_channel_data *chan)  in is_in_chanlist()  argument
230 	return freq_range_list_includes(&iface->conf->acs_ch_list, chan->chan);  in is_in_chanlist()
246 	struct hostapd_channel_data *chan;  in dfs_find_channel()  local
254 		chan = &mode->channels[i];  in dfs_find_channel()
259 		    (!dfs_is_chan_allowed(chan, n_chans) ||  in dfs_find_channel()
260 		     !(chan->allowed_bw & HOSTAPD_CHAN_WIDTH_40P))) {  in dfs_find_channel()
263 				   chan->freq, chan->chan);  in dfs_find_channel()
271 				   chan->freq, chan->chan);  in dfs_find_channel()
275 		if (!is_in_chanlist(iface, chan)) {  in dfs_find_channel()
278 				   chan->freq, chan->chan);  in dfs_find_channel()
282 		if (chan->max_tx_power < iface->conf->min_tx_power)  in dfs_find_channel()
285 		if ((chan->flag & HOSTAPD_CHAN_INDOOR_ONLY) &&  in dfs_find_channel()
291 				   chan->freq, chan->chan);  in dfs_find_channel()
292 			*ret_chan = chan;  in dfs_find_channel()
296 			   chan->freq, chan->chan);  in dfs_find_channel()
304 				   struct hostapd_channel_data *chan,  in dfs_adjust_center_freq()  argument
313 	if (!chan)  in dfs_adjust_center_freq()
321 			*oper_centr_freq_seg0_idx = chan->chan + 2;  in dfs_adjust_center_freq()
323 			*oper_centr_freq_seg0_idx = chan->chan - 2;  in dfs_adjust_center_freq()
325 			*oper_centr_freq_seg0_idx = chan->chan;  in dfs_adjust_center_freq()
328 		*oper_centr_freq_seg0_idx = chan->chan + 6;  in dfs_adjust_center_freq()
331 		*oper_centr_freq_seg0_idx = chan->chan + 14;  in dfs_adjust_center_freq()
334 		*oper_centr_freq_seg0_idx = chan->chan + 6;  in dfs_adjust_center_freq()
355 	struct hostapd_channel_data *chan;  in dfs_get_start_chan_idx()  local
401 		chan = &mode->channels[i];  in dfs_get_start_chan_idx()
402 		if (chan->chan == channel_no) {  in dfs_get_start_chan_idx()
414 			chan = &mode->channels[i];  in dfs_get_start_chan_idx()
415 			if (chan->chan == chan_seg1) {  in dfs_get_start_chan_idx()
435 				   mode->channels[i].chan);  in dfs_get_start_chan_idx()
525 	struct hostapd_channel_data *chan = NULL;  in dfs_get_valid_channel()  local
557 	dfs_find_channel(iface, &chan, chan_idx, type);  in dfs_get_valid_channel()
558 	if (!chan) {  in dfs_get_valid_channel()
563 		   chan->freq, chan->chan);  in dfs_get_valid_channel()
588 			if (chan2 && abs(chan2->chan - chan->chan) > 12) {  in dfs_get_valid_channel()
590 				sec_chan_idx_80p80 = chan2->chan;  in dfs_get_valid_channel()
593 					   chan2->freq, chan2->chan);  in dfs_get_valid_channel()
608 	dfs_adjust_center_freq(iface, chan,  in dfs_get_valid_channel()
614 	return chan;  in dfs_get_valid_channel()
633 	iface->conf->channel = channel->chan;  in dfs_set_valid_channel()
645 	struct hostapd_channel_data *chan = NULL;  in set_dfs_state_freq()  local
654 		chan = &iface->current_mode->channels[i];  in set_dfs_state_freq()
655 		if (chan->freq == freq) {  in set_dfs_state_freq()
656 			if (chan->flag & HOSTAPD_CHAN_RADAR) {  in set_dfs_state_freq()
657 				chan->flag &= ~HOSTAPD_CHAN_DFS_MASK;  in set_dfs_state_freq()
658 				chan->flag |= state;  in set_dfs_state_freq()
739 	struct hostapd_channel_data *chan;  in dfs_are_channels_overlapped()  local
782 		chan = &mode->channels[start_chan_idx + i];  in dfs_are_channels_overlapped()
783 		if (!(chan->flag & HOSTAPD_CHAN_RADAR))  in dfs_are_channels_overlapped()
787 				   chan->chan, radar_chan + j * 4);  in dfs_are_channels_overlapped()
788 			if (chan->chan == radar_chan + j * 4)  in dfs_are_channels_overlapped()
1076 	    channel->chan == iface->conf->channel ||  in hostapd_dfs_update_background_chain()
1077 	    channel->chan == iface->radar_background.channel)  in hostapd_dfs_update_background_chain()
1084 				  channel->freq, channel->chan,  in hostapd_dfs_update_background_chain()
1097 	iface->radar_background.channel = channel->chan;  in hostapd_dfs_update_background_chain()
1105 		   __func__, channel->chan, channel->freq);  in hostapd_dfs_update_background_chain()
1247 				   channel->chan);  in dfs_downgrade_bandwidth()
1299 		   channel->chan);  in hostapd_dfs_start_channel_switch_cac()
1302 		channel->chan, secondary_channel);  in hostapd_dfs_start_channel_switch_cac()
1305 	iface->conf->channel = channel->chan;  in hostapd_dfs_start_channel_switch_cac()
1422 			iface->conf->channel = channel->chan;  in hostapd_dfs_start_channel_switch()
1435 	return hostapd_dfs_request_channel_switch(iface, channel->chan,  in hostapd_dfs_start_channel_switch()
1618 	struct hostapd_channel_data *chan;  in hostapd_is_dfs_overlap()  local
1650 		chan = &mode->channels[i];  in hostapd_is_dfs_overlap()
1652 		if (!(chan->flag & HOSTAPD_CHAN_RADAR))  in hostapd_is_dfs_overlap()
1655 		if ((chan->flag & HOSTAPD_CHAN_DFS_MASK) ==  in hostapd_is_dfs_overlap()
1659 		if (center_freq - chan->freq < half_width &&  in hostapd_is_dfs_overlap()
1660 		    chan->freq - center_freq < half_width)  in hostapd_is_dfs_overlap()