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authorJohn W. Linville <linville@tuxdriver.com>2010-07-19 22:35:20 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-07-20 22:53:09 +0200
commit8b74964c73ca9eed7078388d871cc7fae973cb63 (patch)
tree0fe432bb9425d9418b7169a9763633d79d14b94f /drivers/net/wireless/rtl818x
parentmwl8k: correct/silence sparse warnings (diff)
downloadlinux-8b74964c73ca9eed7078388d871cc7fae973cb63.tar.xz
linux-8b74964c73ca9eed7078388d871cc7fae973cb63.zip
rtl8180: improve signal reporting for rtl8185 hardware
The existing code seemed to be somewhat based on the datasheet, but varied substantially from the vendor-provided driver. This mirrors the handling of the rtl8185 case from that driver, but still neglects the specifics for the rtl8180 hardware. Those details are a bit muddled... Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rtl818x')
-rw-r--r--drivers/net/wireless/rtl818x/rtl8180_dev.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c
index 42705028751d..31808f96a3d6 100644
--- a/drivers/net/wireless/rtl818x/rtl8180_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c
@@ -103,6 +103,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
{
struct rtl8180_priv *priv = dev->priv;
unsigned int count = 32;
+ u8 signal;
while (count--) {
struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
@@ -130,10 +131,14 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
skb_put(skb, flags & 0xFFF);
rx_status.antenna = (flags2 >> 15) & 1;
- /* TODO: improve signal/rssi reporting */
- rx_status.signal = (flags2 >> 8) & 0x7F;
- /* XXX: is this correct? */
rx_status.rate_idx = (flags >> 20) & 0xF;
+ /* TODO: improve signal/rssi reporting for !rtl8185 */
+ signal = (flags2 >> 17) & 0x7F;
+ if (rx_status.rate_idx > 3)
+ signal = 90 - clamp_t(u8, signal, 25, 90);
+ else
+ signal = 95 - clamp_t(u8, signal, 30, 95);
+ rx_status.signal = signal;
rx_status.freq = dev->conf.channel->center_freq;
rx_status.band = dev->conf.channel->band;
rx_status.mactime = le64_to_cpu(entry->tsft);