/*
* Add the phy configuration to the PHY context command
*/
static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
struct iwl_phy_context_cmd *cmd,
struct cfg80211_chan_def *chandef,
u8 chains_static, u8 chains_dynamic)
{
u8 active_cnt, idle_cnt;
/* Set the channel info data */
cmd->ci.band = (chandef->chan->band == IEEE80211_BAND_2GHZ ?
PHY_BAND_24 : PHY_BAND_5);
cmd->ci.channel = chandef->chan->hw_value;
cmd->ci.width = iwl_mvm_get_channel_width(chandef);
cmd->ci.ctrl_pos = iwl_mvm_get_ctrl_pos(chandef);
/* Set rx the chains */
idle_cnt = chains_static;
active_cnt = chains_dynamic;
/* In scenarios where we only ever use a single-stream rates,
* i.e. legacy 11b/g/a associations, single-stream APs or even
* static SMPS, enable both chains to get diversity, improving
* the case where we're far enough from the AP that attenuation
* between the two antennas is sufficiently different to impact
* performance.
*/
if (active_cnt == 1 && iwl_mvm_rx_diversity_allowed(mvm)) {
idle_cnt = 2;
active_cnt = 2;
}
cmd->rxchain_info = cpu_to_le32(iwl_mvm_get_valid_rx_ant(mvm) <<
PHY_RX_CHAIN_VALID_POS);
cmd->rxchain_info |= cpu_to_le32(idle_cnt << PHY_RX_CHAIN_CNT_POS);
cmd->rxchain_info |= cpu_to_le32(active_cnt <<
PHY_RX_CHAIN_MIMO_CNT_POS);
if (unlikely(mvm->dbgfs_rx_phyinfo))
cmd->rxchain_info = cpu_to_le32(mvm->dbgfs_rx_phyinfo);
cmd->txchain_info = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
}
static u8 iwl_mvm_scan_rx_ant(struct iwl_mvm *mvm)
{
if (mvm->scan_rx_ant != ANT_NONE)
return mvm->scan_rx_ant;
return iwl_mvm_get_valid_rx_ant(mvm);
}
