Lines Matching full:scan
2 * Scan implementation for ST-Ericsson CW1200 mac80211 drivers
14 #include "scan.h"
20 static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan) in cw1200_scan_start() argument
33 wiphy_dbg(priv->hw->wiphy, "[SCAN] hw req, type %d, %d channels, flags: 0x%x.\n", in cw1200_scan_start()
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()
68 /* Scan when P2P_GO corrupt firmware MiniAP mode */ in cw1200_hw_scan()
75 wiphy_dbg(hw->wiphy, "[SCAN] Scan request for %d SSIDs.\n", in cw1200_hw_scan()
82 down(&priv->scan.lock); in cw1200_hw_scan()
89 up(&priv->scan.lock); in cw1200_hw_scan()
104 up(&priv->scan.lock); in cw1200_hw_scan()
110 BUG_ON(priv->scan.req); in cw1200_hw_scan()
111 priv->scan.req = req; in cw1200_hw_scan()
112 priv->scan.n_ssids = 0; in cw1200_hw_scan()
113 priv->scan.status = 0; in cw1200_hw_scan()
114 priv->scan.begin = &req->channels[0]; in cw1200_hw_scan()
115 priv->scan.curr = priv->scan.begin; in cw1200_hw_scan()
116 priv->scan.end = &req->channels[req->n_channels]; in cw1200_hw_scan()
117 priv->scan.output_power = priv->output_power; in cw1200_hw_scan()
120 struct wsm_ssid *dst = &priv->scan.ssids[priv->scan.n_ssids]; in cw1200_hw_scan()
123 ++priv->scan.n_ssids; in cw1200_hw_scan()
129 queue_work(priv->workqueue, &priv->scan.work); in cw1200_hw_scan()
136 scan.work); in cw1200_scan_work()
138 struct wsm_scan scan = { in cw1200_scan_work() local
142 bool first_run = (priv->scan.begin == priv->scan.curr && in cw1200_scan_work()
143 priv->scan.begin != priv->scan.end); in cw1200_scan_work()
147 /* Firmware gets crazy if scan request is sent in cw1200_scan_work()
165 * after scan in cw1200_scan_work()
171 if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) { in cw1200_scan_work()
173 .aborted = priv->scan.status ? 1 : 0, in cw1200_scan_work()
176 if (priv->scan.output_power != priv->output_power) in cw1200_scan_work()
182 if (priv->scan.status < 0) in cw1200_scan_work()
184 "[SCAN] Scan failed (%d).\n", in cw1200_scan_work()
185 priv->scan.status); in cw1200_scan_work()
186 else if (priv->scan.req) in cw1200_scan_work()
188 "[SCAN] Scan completed.\n"); in cw1200_scan_work()
191 "[SCAN] Scan canceled.\n"); in cw1200_scan_work()
193 priv->scan.req = NULL; in cw1200_scan_work()
198 up(&priv->scan.lock); in cw1200_scan_work()
201 struct ieee80211_channel *first = *priv->scan.curr; in cw1200_scan_work()
202 for (it = priv->scan.curr + 1, i = 1; in cw1200_scan_work()
203 it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS; in cw1200_scan_work()
214 scan.band = first->band; in cw1200_scan_work()
216 if (priv->scan.req->no_cck) in cw1200_scan_work()
217 scan.max_tx_rate = WSM_TRANSMIT_RATE_6; in cw1200_scan_work()
219 scan.max_tx_rate = WSM_TRANSMIT_RATE_1; in cw1200_scan_work()
220 scan.num_probes = in cw1200_scan_work()
222 scan.num_ssids = priv->scan.n_ssids; in cw1200_scan_work()
223 scan.ssids = &priv->scan.ssids[0]; in cw1200_scan_work()
224 scan.num_channels = it - priv->scan.curr; in cw1200_scan_work()
226 scan.probe_delay = 100; in cw1200_scan_work()
228 * FW team says that driver may not use FG scan in cw1200_scan_work()
232 scan.type = WSM_SCAN_TYPE_BACKGROUND; in cw1200_scan_work()
233 scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND; in cw1200_scan_work()
235 scan.ch = kcalloc(it - priv->scan.curr, in cw1200_scan_work()
238 if (!scan.ch) { in cw1200_scan_work()
239 priv->scan.status = -ENOMEM; in cw1200_scan_work()
242 for (i = 0; i < scan.num_channels; ++i) { in cw1200_scan_work()
243 scan.ch[i].number = priv->scan.curr[i]->hw_value; in cw1200_scan_work()
244 if (priv->scan.curr[i]->flags & IEEE80211_CHAN_NO_IR) { in cw1200_scan_work()
245 scan.ch[i].min_chan_time = 50; in cw1200_scan_work()
246 scan.ch[i].max_chan_time = 100; in cw1200_scan_work()
248 scan.ch[i].min_chan_time = 10; in cw1200_scan_work()
249 scan.ch[i].max_chan_time = 25; in cw1200_scan_work()
253 priv->scan.output_power != first->max_power) { in cw1200_scan_work()
254 priv->scan.output_power = first->max_power; in cw1200_scan_work()
256 priv->scan.output_power * 10); in cw1200_scan_work()
258 priv->scan.status = cw1200_scan_start(priv, &scan); in cw1200_scan_work()
259 kfree(scan.ch); in cw1200_scan_work()
260 if (priv->scan.status) in cw1200_scan_work()
262 priv->scan.curr = it; in cw1200_scan_work()
268 priv->scan.curr = priv->scan.end; in cw1200_scan_work()
270 queue_work(priv->workqueue, &priv->scan.work); in cw1200_scan_work()
276 /* FW bug: driver has to restart p2p-dev mode after scan. */ in cw1200_scan_restart_delayed()
296 if (priv->scan.direct_probe) { in cw1200_scan_complete()
297 wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe complete.\n"); in cw1200_scan_complete()
299 priv->scan.direct_probe = 0; in cw1200_scan_complete()
300 up(&priv->scan.lock); in cw1200_scan_complete()
303 cw1200_scan_work(&priv->scan.work); in cw1200_scan_complete()
313 if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) { in cw1200_scan_failed_cb()
314 priv->scan.status = -EIO; in cw1200_scan_failed_cb()
315 queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0); in cw1200_scan_failed_cb()
327 if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) { in cw1200_scan_complete_cb()
328 priv->scan.status = 1; in cw1200_scan_complete_cb()
329 queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0); in cw1200_scan_complete_cb()
344 container_of(work, struct cw1200_common, scan.timeout.work); in cw1200_scan_timeout()
345 if (atomic_xchg(&priv->scan.in_progress, 0)) { in cw1200_scan_timeout()
346 if (priv->scan.status > 0) { in cw1200_scan_timeout()
347 priv->scan.status = 0; in cw1200_scan_timeout()
348 } else if (!priv->scan.status) { in cw1200_scan_timeout()
350 "Timeout waiting for scan complete notification.\n"); in cw1200_scan_timeout()
351 priv->scan.status = -ETIMEDOUT; in cw1200_scan_timeout()
352 priv->scan.curr = priv->scan.end; in cw1200_scan_timeout()
362 container_of(work, struct cw1200_common, scan.probe_work.work); in cw1200_probe_work()
377 struct wsm_scan scan = { in cw1200_probe_work() local
389 wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe work.\n"); in cw1200_probe_work()
392 if (down_trylock(&priv->scan.lock)) { in cw1200_probe_work()
393 /* Scan is already in progress. Requeue self. */ in cw1200_probe_work()
395 queue_delayed_work(priv->workqueue, &priv->scan.probe_work, in cw1200_probe_work()
404 up(&priv->scan.lock); in cw1200_probe_work()
410 scan.max_tx_rate = wsm->max_tx_rate; in cw1200_probe_work()
411 scan.band = (priv->channel->band == NL80211_BAND_5GHZ) ? in cw1200_probe_work()
415 scan.type = WSM_SCAN_TYPE_BACKGROUND; in cw1200_probe_work()
416 scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND; in cw1200_probe_work()
437 scan.num_ssids = 1; in cw1200_probe_work()
446 /* FW bug: driver has to restart p2p-dev mode after scan */ in cw1200_probe_work()
450 priv->scan.direct_probe = 1; in cw1200_probe_work()
453 ret = cw1200_scan_start(priv, &scan); in cw1200_probe_work()
463 priv->scan.direct_probe = 0; in cw1200_probe_work()
464 up(&priv->scan.lock); in cw1200_probe_work()