iwlwifi: send DC calib config to runtime ucode

Since uCode is responsible for doing DC calibration, there's no need
to let init uCode to do initial DC calibration then send results
back to driver, then driver sends the results to runtime uCode.
Driver can simply tell runtime uCode to do DC calibration.

Actually, this patch does not disable DC calib for init uCode. It just
prevent driver from saving and sending the DC calib results (from init
ucode) to runtime uCode. The driver still uses 0xffffffff in
CALIB_CFG_CMD for init ucode.

Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 005b07bea1e0..e23c554b73a8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2765,6 +2765,25 @@ static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 	}
 }
 
+static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
+{
+	struct iwl_calib_cfg_cmd calib_cfg_cmd;
+	struct iwl_host_cmd cmd = {
+		.id = CALIBRATION_CFG_CMD,
+		.len = sizeof(struct iwl_calib_cfg_cmd),
+		.data = &calib_cfg_cmd,
+	};
+
+	memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
+	calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
+	calib_cfg_cmd.ucd_calib_cfg.once.start = cfg;
+	calib_cfg_cmd.ucd_calib_cfg.once.send_res = 0;
+	calib_cfg_cmd.ucd_calib_cfg.flags = 0;
+
+	return iwl_send_cmd(priv, &cmd);
+}
+
+
 /**
  * iwl_alive_start - called after REPLY_ALIVE notification received
  *                   from protocol/runtime uCode (initialization uCode's
@@ -2801,6 +2820,10 @@ static void iwl_alive_start(struct iwl_priv *priv)
 		goto restart;
 	}
 
+	if (priv->hw_params.calib_rt_cfg)
+		iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg);
+
+
 	/* After the ALIVE response, we can send host commands to the uCode */
 	set_bit(STATUS_ALIVE, &priv->status);