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path: root/drivers/net/wireless/wl12xx/wl1271_event.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_event.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_event.c99
1 files changed, 70 insertions, 29 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_event.c b/drivers/net/wireless/wl12xx/wl1271_event.c
index cf37aa6..25ce2cd 100644
--- a/drivers/net/wireless/wl12xx/wl1271_event.c
+++ b/drivers/net/wireless/wl12xx/wl1271_event.c
@@ -26,36 +26,64 @@
#include "wl1271_io.h"
#include "wl1271_event.h"
#include "wl1271_ps.h"
+#include "wl1271_scan.h"
#include "wl12xx_80211.h"
-static int wl1271_event_scan_complete(struct wl1271 *wl,
- struct event_mailbox *mbox)
+void wl1271_pspoll_work(struct work_struct *work)
{
- wl1271_debug(DEBUG_EVENT, "status: 0x%x",
- mbox->scheduled_scan_status);
-
- if (test_bit(WL1271_FLAG_SCANNING, &wl->flags)) {
- if (wl->scan.state == WL1271_SCAN_BAND_DUAL) {
- /* 2.4 GHz band scanned, scan 5 GHz band, pretend
- * to the wl1271_cmd_scan function that we are not
- * scanning as it checks that.
- */
- clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
- /* FIXME: ie missing! */
- wl1271_cmd_scan(wl, wl->scan.ssid, wl->scan.ssid_len,
- NULL, 0,
- wl->scan.active,
- wl->scan.high_prio,
- WL1271_SCAN_BAND_5_GHZ,
- wl->scan.probe_requests);
- } else {
- mutex_unlock(&wl->mutex);
- ieee80211_scan_completed(wl->hw, false);
- mutex_lock(&wl->mutex);
- clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
- }
+ struct delayed_work *dwork;
+ struct wl1271 *wl;
+
+ dwork = container_of(work, struct delayed_work, work);
+ wl = container_of(dwork, struct wl1271, pspoll_work);
+
+ wl1271_debug(DEBUG_EVENT, "pspoll work");
+
+ mutex_lock(&wl->mutex);
+
+ if (!test_and_clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags))
+ goto out;
+
+ if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
+ goto out;
+
+ /*
+ * if we end up here, then we were in powersave when the pspoll
+ * delivery failure occurred, and no-one changed state since, so
+ * we should go back to powersave.
+ */
+ wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE, true);
+
+out:
+ mutex_unlock(&wl->mutex);
+};
+
+static void wl1271_event_pspoll_delivery_fail(struct wl1271 *wl)
+{
+ int delay = wl->conf.conn.ps_poll_recovery_period;
+ int ret;
+
+ wl->ps_poll_failures++;
+ if (wl->ps_poll_failures == 1)
+ wl1271_info("AP with dysfunctional ps-poll, "
+ "trying to work around it.");
+
+ /* force active mode receive data from the AP */
+ if (test_bit(WL1271_FLAG_PSM, &wl->flags)) {
+ ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE, true);
+ if (ret < 0)
+ return;
+ set_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
+ ieee80211_queue_delayed_work(wl->hw, &wl->pspoll_work,
+ msecs_to_jiffies(delay));
}
- return 0;
+
+ /*
+ * If already in active mode, lets we should be getting data from
+ * the AP right away. If we enter PSM too fast after this, and data
+ * remains on the AP, we will get another event like this, and we'll
+ * go into active once more.
+ */
}
static int wl1271_event_ps_report(struct wl1271 *wl,
@@ -163,9 +191,19 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector);
if (vector & SCAN_COMPLETE_EVENT_ID) {
- ret = wl1271_event_scan_complete(wl, mbox);
- if (ret < 0)
- return ret;
+ wl1271_debug(DEBUG_EVENT, "status: 0x%x",
+ mbox->scheduled_scan_status);
+
+ wl1271_scan_stm(wl);
+ }
+
+ /* disable dynamic PS when requested by the firmware */
+ if (vector & SOFT_GEMINI_SENSE_EVENT_ID &&
+ wl->bss_type == BSS_TYPE_STA_BSS) {
+ if (mbox->soft_gemini_sense_info)
+ ieee80211_disable_dyn_ps(wl->vif);
+ else
+ ieee80211_enable_dyn_ps(wl->vif);
}
/*
@@ -191,6 +229,9 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
return ret;
}
+ if (vector & PSPOLL_DELIVERY_FAILURE_EVENT_ID)
+ wl1271_event_pspoll_delivery_fail(wl);
+
if (vector & RSSI_SNR_TRIGGER_0_EVENT_ID) {
wl1271_debug(DEBUG_EVENT, "RSSI_SNR_TRIGGER_0_EVENT");
if (wl->vif)
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