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path: root/drivers/net/wireless/rtl818x/rtl8180/dev.c
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Diffstat (limited to 'drivers/net/wireless/rtl818x/rtl8180/dev.c')
-rw-r--r--drivers/net/wireless/rtl818x/rtl8180/dev.c28
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c
index 026d912f516b..ded967aa6ecb 100644
--- a/drivers/net/wireless/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c
@@ -189,6 +189,9 @@ static const int rtl8187se_queues_map[RTL8187SE_NR_TX_QUEUES] = {5, 4, 3, 2, 7};
static const int rtl8180_queues_map[RTL8180_NR_TX_QUEUES] = {4, 7};
+/* LNA gain table for rtl8187se */
+static const u8 rtl8187se_lna_gain[4] = {02, 17, 29, 39};
+
void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data)
{
struct rtl8180_priv *priv = dev->priv;
@@ -210,13 +213,14 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
struct rtl8180_priv *priv = dev->priv;
struct rtl818x_rx_cmd_desc *cmd_desc;
unsigned int count = 32;
- u8 agc, sq, signal = 1;
+ u8 agc, sq;
+ s8 signal = 1;
dma_addr_t mapping;
while (count--) {
void *entry = priv->rx_ring + priv->rx_idx * priv->rx_ring_sz;
struct sk_buff *skb = priv->rx_buf[priv->rx_idx];
- u32 flags, flags2;
+ u32 flags, flags2, flags3 = 0;
u64 tsft;
if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8187SE) {
@@ -229,6 +233,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
* the ownership flag
*/
rmb();
+ flags3 = le32_to_cpu(desc->flags3);
flags2 = le32_to_cpu(desc->flags2);
tsft = le64_to_cpu(desc->tsft);
} else {
@@ -287,8 +292,21 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev)
signal = priv->rf->calc_rssi(agc, sq);
break;
case RTL818X_CHIP_FAMILY_RTL8187SE:
- /* TODO: rtl8187se rssi */
- signal = 10;
+ /* OFDM measure reported by HW is signed,
+ * in 0.5dBm unit, with zero centered @ -41dBm
+ * input signal.
+ */
+ if (rx_status.rate_idx > 3) {
+ signal = (s8)((flags3 >> 16) & 0xff);
+ signal = signal / 2 - 41;
+ } else {
+ int idx, bb;
+
+ idx = (agc & 0x60) >> 5;
+ bb = (agc & 0x1F) * 2;
+ /* bias + BB gain + LNA gain */
+ signal = 4 - bb - rtl8187se_lna_gain[idx];
+ }
break;
}
rx_status.signal = signal;
@@ -1835,7 +1853,7 @@ static int rtl8180_probe(struct pci_dev *pdev,
pci_try_set_mwi(pdev);
}
- if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8185)
+ if (priv->chip_family != RTL818X_CHIP_FAMILY_RTL8180)
dev->flags |= IEEE80211_HW_SIGNAL_DBM;
else
dev->flags |= IEEE80211_HW_SIGNAL_UNSPEC;