mwifiex: add set_antenna handler support

This enables user to set mode of Tx/Rx path using "iw set antenna"
command. For non MIMO chips, the command will be used for selecting
specific antenna or configuring antenna diversity mode.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c
index 2d4319a8941f..75eaa6f877fa 100644
--- a/drivers/net/wireless/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/mwifiex/sta_cmd.c
@@ -277,6 +277,39 @@ static int mwifiex_cmd_rf_tx_power(struct mwifiex_private *priv,
 }
 
 /*
+ * This function prepares command to set rf antenna.
+ */
+static int mwifiex_cmd_rf_antenna(struct mwifiex_private *priv,
+				  struct host_cmd_ds_command *cmd,
+				  u16 cmd_action,
+				  struct mwifiex_ds_ant_cfg *ant_cfg)
+{
+	struct host_cmd_ds_rf_ant_mimo *ant_mimo = &cmd->params.ant_mimo;
+	struct host_cmd_ds_rf_ant_siso *ant_siso = &cmd->params.ant_siso;
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_RF_ANTENNA);
+
+	if (cmd_action != HostCmd_ACT_GEN_SET)
+		return 0;
+
+	if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) {
+		cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_rf_ant_mimo) +
+					S_DS_GEN);
+		ant_mimo->action_tx = cpu_to_le16(HostCmd_ACT_SET_TX);
+		ant_mimo->tx_ant_mode = cpu_to_le16((u16)ant_cfg->tx_ant);
+		ant_mimo->action_rx = cpu_to_le16(HostCmd_ACT_SET_RX);
+		ant_mimo->rx_ant_mode = cpu_to_le16((u16)ant_cfg->rx_ant);
+	} else {
+		cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_rf_ant_siso) +
+					S_DS_GEN);
+		ant_siso->action = cpu_to_le16(HostCmd_ACT_SET_BOTH);
+		ant_siso->ant_mode = cpu_to_le16((u16)ant_cfg->tx_ant);
+	}
+
+	return 0;
+}
+
+/*
  * This function prepares command to set Host Sleep configuration.
  *
  * Preparation includes -
@@ -1076,6 +1109,10 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
 		ret = mwifiex_cmd_rf_tx_power(priv, cmd_ptr, cmd_action,
 					      data_buf);
 		break;
+	case HostCmd_CMD_RF_ANTENNA:
+		ret = mwifiex_cmd_rf_antenna(priv, cmd_ptr, cmd_action,
+					     data_buf);
+		break;
 	case HostCmd_CMD_802_11_PS_MODE_ENH:
 		ret = mwifiex_cmd_enh_power_mode(priv, cmd_ptr, cmd_action,
 						 (uint16_t)cmd_oid, data_buf);