From: Olivier Hochreutiner [EMAIL PROTECTED]
Date: Wed, 8 Mar 2006 03:13:55 + (+0800)
[PATCH 14/16] ipw2200: wireless extension sensitivity threshold support
The patch allows the user to set the handover threshold, i.e. the number
of consecutively missed beacons that will trigger a roaming attempt. The
disassociation threshold is set to 3 times the handover threshold.
Signed-off-by: Olivier Hochreutiner [EMAIL PROTECTED]
Signed-off-by: Zhu Yi [EMAIL PROTECTED]
---
--- a/Documentation/networking/README.ipw2200
+++ b/Documentation/networking/README.ipw2200
@@ -30,6 +30,7 @@ Index
2. Ad-Hoc Networking
3. Interacting with Wireless Tools
3.1. iwconfig mode
+3.2. iwconfig sens
4. About the Version Numbers
5. Firmware installation
6. Support
@@ -398,6 +399,15 @@ When configuring the mode of the adapter
are reset to the value used when the module was loaded. This includes
channels, rates, ESSID, etc.
+3.2 iwconfig sens
+---
+
+The 'iwconfig ethX sens XX' command will not set the signal sensitivity
+threshold, as described in iwconfig documentation, but rather the number
+of consecutive missed beacons that will trigger handover, i.e. roaming
+to another access point. At the same time, it will set the disassociation
+threshold to 3 times the given value.
+
4. About the Version Numbers
---
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -8614,6 +8614,52 @@ static int ipw_wx_get_nick(struct net_de
return 0;
}
+static int ipw_wx_set_sens(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ int err = 0;
+
+ IPW_DEBUG_WX(Setting roaming threshold to %d\n, wrqu-sens.value);
+ IPW_DEBUG_WX(Setting disassociate threshold to %d\n,
3*wrqu-sens.value);
+ mutex_lock(priv-mutex);
+
+ if (wrqu-sens.fixed == 0)
+ {
+ priv-roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
+ priv-disassociate_threshold =
IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
+ goto out;
+ }
+ if ((wrqu-sens.value IPW_MB_ROAMING_THRESHOLD_MAX) ||
+ (wrqu-sens.value IPW_MB_ROAMING_THRESHOLD_MIN)) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ priv-roaming_threshold = wrqu-sens.value;
+ priv-disassociate_threshold = 3*wrqu-sens.value;
+ out:
+ mutex_unlock(priv-mutex);
+ return err;
+}
+
+static int ipw_wx_get_sens(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct ipw_priv *priv = ieee80211_priv(dev);
+ mutex_lock(priv-mutex);
+ wrqu-sens.fixed = 1;
+ wrqu-sens.value = priv-roaming_threshold;
+ mutex_unlock(priv-mutex);
+
+ IPW_DEBUG_WX(GET roaming threshold - %s %d \n,
+wrqu-power.disabled ? OFF : ON, wrqu-power.value);
+
+ return 0;
+}
+
static int ipw_wx_set_rate(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
@@ -9435,6 +9481,8 @@ static iw_handler ipw_wx_handlers[] = {
IW_IOCTL(SIOCGIWFREQ) = ipw_wx_get_freq,
IW_IOCTL(SIOCSIWMODE) = ipw_wx_set_mode,
IW_IOCTL(SIOCGIWMODE) = ipw_wx_get_mode,
+ IW_IOCTL(SIOCSIWSENS) = ipw_wx_set_sens,
+ IW_IOCTL(SIOCGIWSENS) = ipw_wx_get_sens,
IW_IOCTL(SIOCGIWRANGE) = ipw_wx_get_range,
IW_IOCTL(SIOCSIWAP) = ipw_wx_set_wap,
IW_IOCTL(SIOCGIWAP) = ipw_wx_get_wap,
--- a/drivers/net/wireless/ipw2200.h
+++ b/drivers/net/wireless/ipw2200.h
@@ -246,8 +246,10 @@ enum connection_manager_assoc_states {
#define HOST_NOTIFICATION_S36_MEASUREMENT_REFUSED 31
#define HOST_NOTIFICATION_STATUS_BEACON_MISSING 1
-#define IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT 24
+#define IPW_MB_ROAMING_THRESHOLD_MIN1
#define IPW_MB_ROAMING_THRESHOLD_DEFAULT8
+#define IPW_MB_ROAMING_THRESHOLD_MAX30
+#define IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT
3*IPW_MB_ROAMING_THRESHOLD_DEFAULT
#define IPW_REAL_RATE_RX_PACKET_THRESHOLD 300
#define MACADRR_BYTE_LEN 6
-
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