20 static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan)  in cw1200_scan_start()  argument
34 		  scan->type, scan->num_channels, scan->flags);  in cw1200_scan_start()
36 	for (i = 0; i < scan->num_channels; ++i)  in cw1200_scan_start()
37 		tmo += scan->ch[i].max_chan_time + 10;  in cw1200_scan_start()
40 	atomic_set(&priv->scan.in_progress, 1);  in cw1200_scan_start()
43 	queue_delayed_work(priv->workqueue, &priv->scan.timeout,  in cw1200_scan_start()
45 	ret = wsm_scan(priv, scan);  in cw1200_scan_start()
47 		atomic_set(&priv->scan.in_progress, 0);  in cw1200_scan_start()
48 		cancel_delayed_work_sync(&priv->scan.timeout);  in cw1200_scan_start()
90 	down(&priv->scan.lock);  in cw1200_hw_scan()
100 		up(&priv->scan.lock);  in cw1200_hw_scan()
107 	BUG_ON(priv->scan.req);  in cw1200_hw_scan()
108 	priv->scan.req = req;  in cw1200_hw_scan()
109 	priv->scan.n_ssids = 0;  in cw1200_hw_scan()
110 	priv->scan.status = 0;  in cw1200_hw_scan()
111 	priv->scan.begin = &req->channels[0];  in cw1200_hw_scan()
112 	priv->scan.curr = priv->scan.begin;  in cw1200_hw_scan()
113 	priv->scan.end = &req->channels[req->n_channels];  in cw1200_hw_scan()
114 	priv->scan.output_power = priv->output_power;  in cw1200_hw_scan()
117 		struct wsm_ssid *dst = &priv->scan.ssids[priv->scan.n_ssids];  in cw1200_hw_scan()
120 		++priv->scan.n_ssids;  in cw1200_hw_scan()
127 	queue_work(priv->workqueue, &priv->scan.work);  in cw1200_hw_scan()
134 							scan.work);  in cw1200_scan_work()
136 	struct wsm_scan scan = {  in cw1200_scan_work()  local
140 	bool first_run = (priv->scan.begin == priv->scan.curr &&  in cw1200_scan_work()
141 			  priv->scan.begin != priv->scan.end);  in cw1200_scan_work()
169 	if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) {  in cw1200_scan_work()
170 		if (priv->scan.output_power != priv->output_power)  in cw1200_scan_work()
176 		if (priv->scan.status < 0)  in cw1200_scan_work()
179 				   priv->scan.status);  in cw1200_scan_work()
180 		else if (priv->scan.req)  in cw1200_scan_work()
187 		priv->scan.req = NULL;  in cw1200_scan_work()
191 		ieee80211_scan_completed(priv->hw, priv->scan.status ? 1 : 0);  in cw1200_scan_work()
192 		up(&priv->scan.lock);  in cw1200_scan_work()
195 		struct ieee80211_channel *first = *priv->scan.curr;  in cw1200_scan_work()
196 		for (it = priv->scan.curr + 1, i = 1;  in cw1200_scan_work()
197 		     it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS;  in cw1200_scan_work()
208 		scan.band = first->band;  in cw1200_scan_work()
210 		if (priv->scan.req->no_cck)  in cw1200_scan_work()
211 			scan.max_tx_rate = WSM_TRANSMIT_RATE_6;  in cw1200_scan_work()
213 			scan.max_tx_rate = WSM_TRANSMIT_RATE_1;  in cw1200_scan_work()
214 		scan.num_probes =  in cw1200_scan_work()
216 		scan.num_ssids = priv->scan.n_ssids;  in cw1200_scan_work()
217 		scan.ssids = &priv->scan.ssids[0];  in cw1200_scan_work()
218 		scan.num_channels = it - priv->scan.curr;  in cw1200_scan_work()
220 		scan.probe_delay = 100;  in cw1200_scan_work()
226 			scan.type = WSM_SCAN_TYPE_BACKGROUND;  in cw1200_scan_work()
227 			scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;  in cw1200_scan_work()
229 		scan.ch = kzalloc(  in cw1200_scan_work()
230 			sizeof(struct wsm_scan_ch) * (it - priv->scan.curr),  in cw1200_scan_work()
232 		if (!scan.ch) {  in cw1200_scan_work()
233 			priv->scan.status = -ENOMEM;  in cw1200_scan_work()
236 		for (i = 0; i < scan.num_channels; ++i) {  in cw1200_scan_work()
237 			scan.ch[i].number = priv->scan.curr[i]->hw_value;  in cw1200_scan_work()
238 			if (priv->scan.curr[i]->flags & IEEE80211_CHAN_NO_IR) {  in cw1200_scan_work()
239 				scan.ch[i].min_chan_time = 50;  in cw1200_scan_work()
240 				scan.ch[i].max_chan_time = 100;  in cw1200_scan_work()
242 				scan.ch[i].min_chan_time = 10;  in cw1200_scan_work()
243 				scan.ch[i].max_chan_time = 25;  in cw1200_scan_work()
247 		    priv->scan.output_power != first->max_power) {  in cw1200_scan_work()
248 			priv->scan.output_power = first->max_power;  in cw1200_scan_work()
250 					     priv->scan.output_power * 10);  in cw1200_scan_work()
252 		priv->scan.status = cw1200_scan_start(priv, &scan);  in cw1200_scan_work()
253 		kfree(scan.ch);  in cw1200_scan_work()
254 		if (priv->scan.status)  in cw1200_scan_work()
256 		priv->scan.curr = it;  in cw1200_scan_work()
262 	priv->scan.curr = priv->scan.end;  in cw1200_scan_work()
264 	queue_work(priv->workqueue, &priv->scan.work);  in cw1200_scan_work()
290 	if (priv->scan.direct_probe) {  in cw1200_scan_complete()
293 		priv->scan.direct_probe = 0;  in cw1200_scan_complete()
294 		up(&priv->scan.lock);  in cw1200_scan_complete()
297 		cw1200_scan_work(&priv->scan.work);  in cw1200_scan_complete()
307 	if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {  in cw1200_scan_failed_cb()
308 		priv->scan.status = -EIO;  in cw1200_scan_failed_cb()
309 		queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);  in cw1200_scan_failed_cb()
321 	if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {  in cw1200_scan_complete_cb()
322 		priv->scan.status = 1;  in cw1200_scan_complete_cb()
323 		queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);  in cw1200_scan_complete_cb()
338 		container_of(work, struct cw1200_common, scan.timeout.work);  in cw1200_scan_timeout()
339 	if (atomic_xchg(&priv->scan.in_progress, 0)) {  in cw1200_scan_timeout()
340 		if (priv->scan.status > 0) {  in cw1200_scan_timeout()
341 			priv->scan.status = 0;  in cw1200_scan_timeout()
342 		} else if (!priv->scan.status) {  in cw1200_scan_timeout()
345 			priv->scan.status = -ETIMEDOUT;  in cw1200_scan_timeout()
346 			priv->scan.curr = priv->scan.end;  in cw1200_scan_timeout()
356 		container_of(work, struct cw1200_common, scan.probe_work.work);  in cw1200_probe_work()
371 	struct wsm_scan scan = {  in cw1200_probe_work()  local
386 	if (down_trylock(&priv->scan.lock)) {  in cw1200_probe_work()
389 		queue_delayed_work(priv->workqueue, &priv->scan.probe_work,  in cw1200_probe_work()
398 		up(&priv->scan.lock);  in cw1200_probe_work()
404 	scan.max_tx_rate = wsm->max_tx_rate;  in cw1200_probe_work()
405 	scan.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?  in cw1200_probe_work()
409 		scan.type = WSM_SCAN_TYPE_BACKGROUND;  in cw1200_probe_work()
410 		scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;  in cw1200_probe_work()
431 			scan.num_ssids = 1;  in cw1200_probe_work()
444 	priv->scan.direct_probe = 1;  in cw1200_probe_work()
447 		ret = cw1200_scan_start(priv, &scan);  in cw1200_probe_work()
457 		priv->scan.direct_probe = 0;  in cw1200_probe_work()
458 		up(&priv->scan.lock);  in cw1200_probe_work()