openwrt/target/linux/generic-2.6/patches/903-hostap_txpower.patch

diff -Nur linux-2.6.17/drivers/net/wireless/hostap/hostap_ap.c linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_ap.c
--- linux-2.6.17/drivers/net/wireless/hostap/hostap_ap.c	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_ap.c	2006-12-10 19:13:33.000000000 +0200
@@ -2345,13 +2345,13 @@
 		addr[count].sa_family = ARPHRD_ETHER;
 		memcpy(addr[count].sa_data, sta->addr, ETH_ALEN);
 		if (sta->last_rx_silence == 0)
-			qual[count].qual = sta->last_rx_signal < 27 ?
-				0 : (sta->last_rx_signal - 27) * 92 / 127;
+                        qual[count].qual = (sta->last_rx_signal - 156) == 0 ?
+                                0 : (sta->last_rx_signal - 156) * 92 / 64;
 		else
-			qual[count].qual = sta->last_rx_signal -
-				sta->last_rx_silence - 35;
-		qual[count].level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
-		qual[count].noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
+                        qual[count].qual = (sta->last_rx_signal -
+                                sta->last_rx_silence) * 92 / 64;
+                qual[count].level = sta->last_rx_signal;
+                qual[count].noise = sta->last_rx_silence;
 		qual[count].updated = sta->last_rx_updated;
 
 		sta->last_rx_updated = IW_QUAL_DBM;
@@ -2416,13 +2416,13 @@
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = IWEVQUAL;
 		if (sta->last_rx_silence == 0)
-			iwe.u.qual.qual = sta->last_rx_signal < 27 ?
-				0 : (sta->last_rx_signal - 27) * 92 / 127;
+	                iwe.u.qual.qual = (sta->last_rx_signal -156) == 0 ?
+	                        0 : (sta->last_rx_signal - 156) * 92 / 64;
 		else
-			iwe.u.qual.qual = sta->last_rx_signal -
-				sta->last_rx_silence - 35;
-		iwe.u.qual.level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
-		iwe.u.qual.noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
+                        iwe.u.qual.qual = (sta->last_rx_signal -
+                                sta->last_rx_silence) * 92 / 64;
+                iwe.u.qual.level = sta->last_rx_signal;
+                iwe.u.qual.noise = sta->last_rx_silence;
 		iwe.u.qual.updated = sta->last_rx_updated;
 		iwe.len = IW_EV_QUAL_LEN;
 		current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
diff -Nur linux-2.6.17/drivers/net/wireless/hostap/hostap_config.h linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_config.h
--- linux-2.6.17/drivers/net/wireless/hostap/hostap_config.h	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_config.h	2006-12-10 19:13:33.000000000 +0200
@@ -47,4 +47,9 @@
  */
 /* #define PRISM2_NO_STATION_MODES */
 
+/* Enable TX power Setting functions
+ * (min att = -128 , max att =  127)
+ */
+#define RAW_TXPOWER_SETTING
+
 #endif /* HOSTAP_CONFIG_H */
diff -Nur linux-2.6.17/drivers/net/wireless/hostap/hostap.h linux-2.6.17-patched/drivers/net/wireless/hostap/hostap.h
--- linux-2.6.17/drivers/net/wireless/hostap/hostap.h	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.17-patched/drivers/net/wireless/hostap/hostap.h	2006-12-10 19:20:00.000000000 +0200
@@ -89,6 +89,7 @@
 extern struct ethtool_ops prism2_ethtool_ops;
 
 int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
+int hostap_restore_power(struct net_device *dev);
 
 
 #endif /* HOSTAP_H */
diff -Nur linux-2.6.17/drivers/net/wireless/hostap/hostap_hw.c linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_hw.c
--- linux-2.6.17/drivers/net/wireless/hostap/hostap_hw.c	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_hw.c	2006-12-10 19:13:33.000000000 +0200
@@ -1043,6 +1043,7 @@
 		       dev->name, local->fragm_threshold);
 	}
 
+	hostap_restore_power(dev);
 	return res;
 }
 
diff -Nur linux-2.6.17/drivers/net/wireless/hostap/hostap_info.c linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_info.c
--- linux-2.6.17/drivers/net/wireless/hostap/hostap_info.c	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_info.c	2006-12-10 19:13:33.000000000 +0200
@@ -429,6 +429,11 @@
 	}
 
 	/* Get BSSID if we have a valid AP address */
+
+	if ( val == HFA384X_LINKSTATUS_CONNECTED ||
+	     val == HFA384X_LINKSTATUS_DISCONNECTED ) 
+			hostap_restore_power(local->dev);
+
 	if (connected) {
 		netif_carrier_on(local->dev);
 		netif_carrier_on(local->ddev);
diff -Nur linux-2.6.17/drivers/net/wireless/hostap/hostap_ioctl.c linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_ioctl.c
--- linux-2.6.17/drivers/net/wireless/hostap/hostap_ioctl.c	2006-06-18 04:49:35.000000000 +0300
+++ linux-2.6.17-patched/drivers/net/wireless/hostap/hostap_ioctl.c	2006-12-10 21:21:03.000000000 +0200
@@ -1506,23 +1506,20 @@
 		val = 255;
 
 	tmp = val;
-	tmp >>= 2;
 
-	return -12 - tmp;
+	return tmp;
 }
 
 static u16 prism2_txpower_dBm_to_hfa386x(int val)
 {
 	signed char tmp;
 
-	if (val > 20)
-		return 128;
-	else if (val < -43)
+	if (val > 127)
 		return 127;
+	else if (val < -128)
+		return 128;
 
 	tmp = val;
-	tmp = -12 - tmp;
-	tmp <<= 2;
 
 	return (unsigned char) tmp;
 }
@@ -4086,3 +4083,35 @@
 
 	return ret;
 }
+
+/* BUG FIX: Restore power setting value when lost due to F/W bug */
+
+int hostap_restore_power(struct net_device *dev)
+{
+        struct hostap_interface *iface = dev->priv;
+       local_info_t *local = iface->local;
+               
+       u16 val;
+       int ret = 0;
+
+       if (local->txpower_type == PRISM2_TXPOWER_OFF) {
+                       val = 0xff; /* use all standby and sleep modes */
+                       ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
+                                              HFA386X_CR_A_D_TEST_MODES2,
+                                              &val, NULL);
+       }
+
+#ifdef RAW_TXPOWER_SETTING
+       if (local->txpower_type == PRISM2_TXPOWER_FIXED) {
+               val = HFA384X_TEST_CFG_BIT_ALC;
+               local->func->cmd(dev, HFA384X_CMDCODE_TEST |
+                                (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL);
+               val = prism2_txpower_dBm_to_hfa386x(local->txpower);
+               ret = (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
+                            HFA386X_CR_MANUAL_TX_POWER, &val, NULL));
+       }
+#endif /* RAW_TXPOWER_SETTING */
+       return (ret ? -EOPNOTSUPP : 0);
+}
+
+EXPORT_SYMBOL(hostap_restore_power);