diff options
Diffstat (limited to 'drivers/staging/wfx/scan.c')
-rw-r--r-- | drivers/staging/wfx/scan.c | 48 |
1 files changed, 29 insertions, 19 deletions
diff --git a/drivers/staging/wfx/scan.c b/drivers/staging/wfx/scan.c index 1e03b130049b..695b06974194 100644 --- a/drivers/staging/wfx/scan.c +++ b/drivers/staging/wfx/scan.c @@ -41,7 +41,7 @@ static int update_probe_tmpl(struct wfx_vif *wvif, static int send_scan_req(struct wfx_vif *wvif, struct cfg80211_scan_request *req, int start_idx) { - int i, ret, timeout; + int i, ret; struct ieee80211_channel *ch_start, *ch_cur; for (i = start_idx; i < req->n_channels; i++) { @@ -56,31 +56,31 @@ static int send_scan_req(struct wfx_vif *wvif, wfx_tx_lock_flush(wvif->wdev); wvif->scan_abort = false; reinit_completion(&wvif->scan_complete); - ret = hif_scan(wvif, req, start_idx, i - start_idx, &timeout); + ret = hif_scan(wvif, req, start_idx, i - start_idx, NULL); if (ret) { - ret = -EIO; - goto err_scan_start; + wfx_tx_unlock(wvif->wdev); + return -EIO; } - ret = wait_for_completion_timeout(&wvif->scan_complete, timeout); + ret = wait_for_completion_timeout(&wvif->scan_complete, 1 * HZ); if (!ret) { - dev_notice(wvif->wdev->dev, "scan timeout\n"); hif_stop_scan(wvif); ret = wait_for_completion_timeout(&wvif->scan_complete, 1 * HZ); - if (!ret) - dev_err(wvif->wdev->dev, "scan didn't stop\n"); - ret = -ETIMEDOUT; - goto err_timeout; + dev_dbg(wvif->wdev->dev, "scan timeout (%d channels done)\n", + wvif->scan_nb_chan_done); } - if (wvif->scan_abort) { + if (!ret) { + dev_err(wvif->wdev->dev, "scan didn't stop\n"); + ret = -ETIMEDOUT; + } else if (wvif->scan_abort) { dev_notice(wvif->wdev->dev, "scan abort\n"); ret = -ECONNABORTED; - goto err_timeout; + } else if (wvif->scan_nb_chan_done > i - start_idx) { + ret = -EIO; + } else { + ret = wvif->scan_nb_chan_done; } - ret = i - start_idx; -err_timeout: if (req->channels[start_idx]->max_power != wvif->vif->bss_conf.txpower) hif_set_output_power(wvif, wvif->vif->bss_conf.txpower); -err_scan_start: wfx_tx_unlock(wvif->wdev); return ret; } @@ -94,7 +94,7 @@ void wfx_hw_scan_work(struct work_struct *work) { struct wfx_vif *wvif = container_of(work, struct wfx_vif, scan_work); struct ieee80211_scan_request *hw_req = wvif->scan_req; - int chan_cur, ret; + int chan_cur, ret, err; mutex_lock(&wvif->wdev->conf_mutex); mutex_lock(&wvif->scan_lock); @@ -105,11 +105,20 @@ void wfx_hw_scan_work(struct work_struct *work) } update_probe_tmpl(wvif, &hw_req->req); chan_cur = 0; + err = 0; do { ret = send_scan_req(wvif, &hw_req->req, chan_cur); - if (ret > 0) + if (ret > 0) { chan_cur += ret; - } while (ret > 0 && chan_cur < hw_req->req.n_channels); + err = 0; + } + if (!ret) + err++; + if (err > 2) { + dev_err(wvif->wdev->dev, "scan has not been able to start\n"); + ret = -ETIMEDOUT; + } + } while (ret >= 0 && chan_cur < hw_req->req.n_channels); mutex_unlock(&wvif->scan_lock); mutex_unlock(&wvif->wdev->conf_mutex); __ieee80211_scan_completed_compat(wvif->wdev->hw, ret < 0); @@ -134,7 +143,8 @@ void wfx_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) hif_stop_scan(wvif); } -void wfx_scan_complete(struct wfx_vif *wvif) +void wfx_scan_complete(struct wfx_vif *wvif, int nb_chan_done) { + wvif->scan_nb_chan_done = nb_chan_done; complete(&wvif->scan_complete); } |