diff options
Diffstat (limited to 'drivers/net/wireless/rtl818x/rtl8180/dev.c')
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8180/dev.c | 28 |
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; |