From: Tomas Winkler <tomas.winkler@intel.com>
Date: Tue, 15 Apr 2008 23:01:39 +0000 (-0700)
Subject: iwlwifi: support different num of tx and rx antennas
X-Git-Tag: v2.6.26-rc1~1138^2~9^2~11
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ec35cf2afb0d807c39188e3a9962ffa51f603024;p=karo-tx-linux.git

iwlwifi: support different num of tx and rx antennas

This patch adds infrastructure for supporting different
number of tx and rx antennas

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-commands.h b/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
index 65cd8ae363b4..7aa7f0be8963 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
@@ -269,11 +269,10 @@ struct iwl_cmd_header {
  *          10 B active, A inactive
  *          11 Both active
  */
-#define RATE_MCS_ANT_A_POS	14
-#define RATE_MCS_ANT_B_POS	15
-#define RATE_MCS_ANT_A_MSK	0x4000
-#define RATE_MCS_ANT_B_MSK	0x8000
-#define RATE_MCS_ANT_AB_MSK	0xc000
+#define RATE_MCS_ANT_POS       14
+#define RATE_MCS_ANT_A_MSK     0x04000
+#define RATE_MCS_ANT_B_MSK     0x08000
+#define RATE_MCS_ANT_AB_MSK    0x0C000
 
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index a1e91dbb92bb..e647be7608fc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -410,7 +410,7 @@ void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 	int rate_index;
 
 	control->antenna_sel_tx =
-		((rate_n_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_A_POS);
+		((rate_n_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS);
 	if (rate_n_flags & RATE_MCS_HT_MSK)
 		control->flags |= IEEE80211_TXCTL_OFDM_HT;
 	if (rate_n_flags & RATE_MCS_GF_MSK)
@@ -2040,7 +2040,10 @@ int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.max_stations = IWL4965_STATION_COUNT;
 	priv->hw_params.bcast_sta_id = IWL4965_BROADCAST_ID;
 
-	priv->hw_params.tx_ant_num = 2;
+	priv->hw_params.tx_chains_num = 2;
+	priv->hw_params.rx_chains_num = 2;
+	priv->hw_params.valid_tx_ant = (IWL_ANTENNA_MAIN | IWL_ANTENNA_AUX);
+	priv->hw_params.valid_rx_ant = (IWL_ANTENNA_MAIN | IWL_ANTENNA_AUX);
 
 	return 0;
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h
index c127c91010b4..cf909e86ed29 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.h
@@ -580,11 +580,14 @@ struct iwl4965_ibss_seq {
 struct iwl_hw_params {
 	u16 max_txq_num;
 	u16 tx_cmd_len;
-	u16 tx_ant_num;
+	u8  tx_chains_num;
+	u8  rx_chains_num;
+	u8  valid_tx_ant;
+	u8  valid_rx_ant;
 	u16 max_rxq_size;
+	u16 max_rxq_log;
 	u32 rx_buf_size;
 	u32 max_pkt_size;
-	u16 max_rxq_log;
 	u8  max_stations;
 	u8  bcast_sta_id;
 };