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iwlwifi: mvm: debugfs: add an option to set antennas for scan command

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Add an option to set rx antennas for the scan command from debugfs.
Create a file called ant_rxchain in the mvm debugfs directory.
To choose antennas, write a number between 1-7 to ant_rxchain.
Write 1 for A, 2 for B, 3 for AB and so on.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Oren Givon
2013-08-19 08:36:48 +03:00
committed by Johannes Berg
parent 4ac6cb59fa
commit 91b05d1035
3 changed files with 65 additions and 1 deletions
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6
drivers/net/wireless/iwlwifi/mvm/scan.c
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@@ -74,8 +74,12 @@
static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
{
u16 rx_chain;
u8 rx_ant = iwl_fw_valid_rx_ant(mvm->fw);
u8 rx_ant;
if (mvm->scan_rx_ant != ANT_NONE)
rx_ant = mvm->scan_rx_ant;
else
rx_ant = iwl_fw_valid_rx_ant(mvm->fw);
rx_chain = rx_ant << PHY_RX_CHAIN_VALID_POS;
rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_MIMO_SEL_POS;
rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_SEL_POS;