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The following patch enables txpower setting for hostap driver and restores txpower after card resets. Signed-off-by: Vasilis Tsiligiannis <acinonyxs@yahoo.gr>

Browse Source 
SVN-Revision: 10656
master
Travis Kemen 17 years ago
parent f7836a5033
commit 7161fc6e53
1 changed files with 160 additions and 0 deletions
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  1. 160
      target/linux/generic-2.6/patches-2.6.24/903-hostap_txpower.patch

160
target/linux/generic-2.6/patches-2.6.24/903-hostap_txpower.patch
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@ -0,0 +1,160 @@
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);
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