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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-03-30 08:40:46 +0300
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-04-13 22:23:09 +0300
commit3fe47dca049f3a684084fec08fabb88bece19a24 (patch)
treed9a2ba51fcff4829d71b7fb75ed64cec3faa474b /drivers/net/wireless/iwlwifi/mvm/rx.c
parentad2549d8edf8f10a6330ab60bfbdaea096281a79 (diff)
downloadlwn-3fe47dca049f3a684084fec08fabb88bece19a24.tar.gz
lwn-3fe47dca049f3a684084fec08fabb88bece19a24.zip
iwlwifi: remove IWL_UCODE_TLV_FLAGS_RX_ENERGY_API flag
All the supported firmwares have this flag set. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/rx.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/rx.c40
1 files changed, 1 insertions, 39 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 40fd5dc46abe..cf7276967acd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -132,41 +132,6 @@ static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm,
ieee80211_rx(mvm->hw, skb);
}
-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;
- u32 agc_a, agc_b;
- u32 val;
-
- val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]);
- agc_a = (val & IWL_OFDM_AGC_A_MSK) >> IWL_OFDM_AGC_A_POS;
- agc_b = (val & IWL_OFDM_AGC_B_MSK) >> IWL_OFDM_AGC_B_POS;
-
- val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_AB_IDX]);
- rssi_a = (val & IWL_OFDM_RSSI_INBAND_A_MSK) >> IWL_OFDM_RSSI_A_POS;
- rssi_b = (val & IWL_OFDM_RSSI_INBAND_B_MSK) >> IWL_OFDM_RSSI_B_POS;
-
- /*
- * dBm = rssi dB - agc dB - constant.
- * Higher AGC (higher radio gain) means lower signal.
- */
- rssi_a_dbm = rssi_a - IWL_RSSI_OFFSET - agc_a;
- rssi_b_dbm = rssi_b - IWL_RSSI_OFFSET - agc_b;
- max_rssi_dbm = max_t(int, rssi_a_dbm, rssi_b_dbm);
-
- 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);
-
- 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
* values are reported by the fw as positive values - need to negate
@@ -336,10 +301,7 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
*/
/*rx_status.flag |= RX_FLAG_MACTIME_MPDU;*/
- if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_RX_ENERGY_API)
- iwl_mvm_get_signal_strength(mvm, phy_info, &rx_status);
- else
- iwl_mvm_calc_rssi(mvm, phy_info, &rx_status);
+ iwl_mvm_get_signal_strength(mvm, phy_info, &rx_status);
IWL_DEBUG_STATS_LIMIT(mvm, "Rssi %d, TSF %llu\n", rx_status.signal,
(unsigned long long)rx_status.mactime);