diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rx.c | 47 |
1 files changed, 21 insertions, 26 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c index c8e4af2..6fd7fae 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/iwlwifi/mvm/rx.c @@ -124,8 +124,9 @@ static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm, ieee80211_rx_ni(mvm->hw, skb); } -static int iwl_mvm_calc_rssi(struct iwl_mvm *mvm, - struct iwl_rx_phy_info *phy_info) +static void iwl_mvm_calc_rssi(struct iwl_mvm *mvm, + struct iwl_rx_phy_info *phy_info, + struct ieee80211_rx_status *rx_status) { int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm; int rssi_all_band_a, rssi_all_band_b; @@ -156,14 +157,20 @@ static int iwl_mvm_calc_rssi(struct iwl_mvm *mvm, IWL_DEBUG_STATS(mvm, "Rssi In A %d B %d Max %d AGCA %d AGCB %d\n", rssi_a_dbm, rssi_b_dbm, max_rssi_dbm, agc_a, agc_b); - return max_rssi_dbm; + rx_status->signal = max_rssi_dbm; + rx_status->chains = (le16_to_cpu(phy_info->phy_flags) & + RX_RES_PHY_FLAGS_ANTENNA) + >> RX_RES_PHY_FLAGS_ANTENNA_POS; + rx_status->chain_signal[0] = rssi_a_dbm; + rx_status->chain_signal[1] = rssi_b_dbm; } /* * iwl_mvm_get_signal_strength - use new rx PHY INFO API */ -static int iwl_mvm_get_signal_strength(struct iwl_mvm *mvm, - struct iwl_rx_phy_info *phy_info) +static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm, + struct iwl_rx_phy_info *phy_info, + struct ieee80211_rx_status *rx_status) { int energy_a, energy_b, energy_c, max_energy; u32 val; @@ -182,7 +189,13 @@ static int iwl_mvm_get_signal_strength(struct iwl_mvm *mvm, IWL_DEBUG_STATS(mvm, "energy In A %d B %d C %d , and max %d\n", energy_a, energy_b, energy_c, max_energy); - return max_energy; + rx_status->signal = max_energy; + rx_status->chains = (le16_to_cpu(phy_info->phy_flags) & + RX_RES_PHY_FLAGS_ANTENNA) + >> RX_RES_PHY_FLAGS_ANTENNA_POS; + rx_status->chain_signal[0] = energy_a; + rx_status->chain_signal[1] = energy_b; + rx_status->chain_signal[2] = energy_c; } /* @@ -305,32 +318,14 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, */ /*rx_status.flag |= RX_FLAG_MACTIME_MPDU;*/ - /* Find max signal strength (dBm) among 3 antenna/receiver chains */ if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_RX_ENERGY_API) - rx_status.signal = iwl_mvm_get_signal_strength(mvm, phy_info); + iwl_mvm_get_signal_strength(mvm, phy_info, &rx_status); else - rx_status.signal = iwl_mvm_calc_rssi(mvm, phy_info); + iwl_mvm_calc_rssi(mvm, phy_info, &rx_status); IWL_DEBUG_STATS_LIMIT(mvm, "Rssi %d, TSF %llu\n", rx_status.signal, (unsigned long long)rx_status.mactime); - /* - * "antenna number" - * - * It seems that the antenna field in the phy flags value - * is actually a bit field. This is undefined by radiotap, - * it wants an actual antenna number but I always get "7" - * for most legacy frames I receive indicating that the - * same frame was received on all three RX chains. - * - * I think this field should be removed in favor of a - * new 802.11n radiotap field "RX chains" that is defined - * as a bitmask. - */ - rx_status.antenna = (le16_to_cpu(phy_info->phy_flags) & - RX_RES_PHY_FLAGS_ANTENNA) - >> RX_RES_PHY_FLAGS_ANTENNA_POS; - /* set the preamble flag if appropriate */ if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_SHORT_PREAMBLE)) rx_status.flag |= RX_FLAG_SHORTPRE; |