iwlwifi: move rate helpers to iwlcore

This patch moves rate helpers to iwlcore.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 5837577..2eb08f3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -244,6 +244,27 @@
 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 
 /*******************************************************************************
+ * Rate
+ ******************************************************************************/
+
+void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
+			      struct ieee80211_tx_info *info);
+int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
+
+static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
+{
+	return le32_to_cpu(rate_n_flags) & 0xFF;
+}
+static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
+{
+	return le32_to_cpu(rate_n_flags) & 0x1FFFF;
+}
+static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
+{
+	return cpu_to_le32(flags|(u32)rate);
+}
+
+/*******************************************************************************
  * Scanning
  ******************************************************************************/
 int iwl_scan_cancel(struct iwl_priv *priv);