iwlwifi: beacon format related helper function

Move the ucode beacon formation related helper function from 3945 to
iwlcore, so both _3945 and _agn devices can utilize those functions.

When driver pass the beacon related timing information to uCode in both
spectrum measurement and channel switch commands, the beacon timing
parameter require in uCode beacon format; those helper functions will do
the conversation from uSec to the correct uCode format

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -662,6 +662,7 @@ struct iwl_sensitivity_ranges {
  * @sw_crypto: 0 for hw, 1 for sw
  * @max_xxx_size: for ucode uses
  * @ct_kill_threshold: temperature threshold
+ * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
  * @calib_init_cfg: setup initial calibrations for the hw
  * @struct iwl_sensitivity_ranges: range of sensitivity values
  */
@@ -688,6 +689,7 @@ struct iwl_hw_params {
 	u32 ct_kill_threshold; /* value in hw-dependent units */
 	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
 				    /* for 1000, 6000 series and up */
+	u16 beacon_time_tsf_bits;
 	u32 calib_init_cfg;
 	const struct iwl_sensitivity_ranges *sens;
 };
@@ -1062,6 +1064,20 @@ struct iwl_force_reset {
 	unsigned long last_force_reset_jiffies;
 };
 
+/* extend beacon time format bit shifting  */
+/*
+ * for _3945 devices
+ * bits 31:24 - extended
+ * bits 23:0  - interval
+ */
+#define IWL3945_EXT_BEACON_TIME_POS	24
+/*
+ * for _agn devices
+ * bits 31:22 - extended
+ * bits 21:0  - interval
+ */
+#define IWLAGN_EXT_BEACON_TIME_POS	22
+
 struct iwl_priv {
 
 	/* ieee device used by generic ieee processing code */