diff options
| author | Ben Cahill <ben.m.cahill@intel.com> | 2005-10-06 15:34:41 -0500 |
|---|---|---|
| committer | James Ketrenos <jketreno@linux.intel.com> | 2005-11-07 17:52:00 -0600 |
| commit | e758256104c3c2475f7746bc1b348c99cdb207f2 (patch) | |
| tree | c3076d27876f5d633db3ed5f8e3e4775679b7245 | |
| parent | 8935f39e86e3707770e091fb58d9060307edf959 (diff) | |
Fixes missed beacon logic in relation to on-network AP roaming.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
| -rw-r--r-- | drivers/net/wireless/ipw2200.c | 27 | ||||
| -rw-r--r-- | drivers/net/wireless/ipw2200.h | 3 |
2 files changed, 23 insertions, 7 deletions
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index 8e17308b553..894192964c0 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -4082,6 +4082,11 @@ static void ipw_bg_gather_stats(void *data) up(&priv->sem); } +/* Missed beacon behavior: + * 1st missed -> roaming_threshold, just wait, don't do any scan/roam. + * roaming_threshold -> disassociate_threshold, scan and roam for better signal. + * Above disassociate threshold, give up and stop scanning. + * Roaming is disabled if disassociate_threshold <= roaming_threshold */ static inline void ipw_handle_missed_beacon(struct ipw_priv *priv, int missed_count) { @@ -4116,9 +4121,12 @@ static inline void ipw_handle_missed_beacon(struct ipw_priv *priv, return; } - if (missed_count > priv->roaming_threshold) { + if (missed_count > priv->roaming_threshold && + missed_count <= priv->disassociate_threshold) { /* If we are not already roaming, set the ROAM - * bit in the status and kick off a scan */ + * bit in the status and kick off a scan. + * This can happen several times before we reach + * disassociate_threshold. */ IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, "Missed beacon: %d - initiate " "roaming\n", missed_count); @@ -4480,11 +4488,16 @@ static inline void ipw_rx_notification(struct ipw_priv *priv, STATUS_DISASSOCIATING))) queue_work(priv->workqueue, &priv->associate); else if (priv->status & STATUS_ROAMING) { - /* If a scan completed and we are in roam mode, then - * the scan that completed was the one requested as a - * result of entering roam... so, schedule the - * roam work */ - queue_work(priv->workqueue, &priv->roam); + if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) + /* If a scan completed and we are in roam mode, then + * the scan that completed was the one requested as a + * result of entering roam... so, schedule the + * roam work */ + queue_work(priv->workqueue, + &priv->roam); + else + /* Don't schedule if we aborted the scan */ + priv->status &= ~STATUS_ROAMING; } else if (priv->status & STATUS_SCAN_PENDING) queue_work(priv->workqueue, &priv->request_scan); diff --git a/drivers/net/wireless/ipw2200.h b/drivers/net/wireless/ipw2200.h index 3e7699430c6..617ec4dba17 100644 --- a/drivers/net/wireless/ipw2200.h +++ b/drivers/net/wireless/ipw2200.h @@ -590,6 +590,9 @@ struct notif_channel_result { u8 uReserved; } __attribute__ ((packed)); +#define SCAN_COMPLETED_STATUS_COMPLETE 1 +#define SCAN_COMPLETED_STATUS_ABORTED 2 + struct notif_scan_complete { u8 scan_type; u8 num_channels; |