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path: root/drivers/net/wireless/iwlwifi/iwl3945-base.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl3945-base.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl3945-base.c56
1 files changed, 3 insertions, 53 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index f2ec752..eeeb6e8 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -665,55 +665,6 @@ drop:
return -1;
}
-#define BEACON_TIME_MASK_LOW 0x00FFFFFF
-#define BEACON_TIME_MASK_HIGH 0xFF000000
-#define TIME_UNIT 1024
-
-/*
- * extended beacon time format
- * time in usec will be changed into a 32-bit value in 8:24 format
- * the high 1 byte is the beacon counts
- * the lower 3 bytes is the time in usec within one beacon interval
- */
-
-static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
-{
- u32 quot;
- u32 rem;
- u32 interval = beacon_interval * 1024;
-
- if (!interval || !usec)
- return 0;
-
- quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
- rem = (usec % interval) & BEACON_TIME_MASK_LOW;
-
- return (quot << 24) + rem;
-}
-
-/* base is usually what we get from ucode with each received frame,
- * the same as HW timer counter counting down
- */
-
-static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
-{
- u32 base_low = base & BEACON_TIME_MASK_LOW;
- u32 addon_low = addon & BEACON_TIME_MASK_LOW;
- u32 interval = beacon_interval * TIME_UNIT;
- u32 res = (base & BEACON_TIME_MASK_HIGH) +
- (addon & BEACON_TIME_MASK_HIGH);
-
- if (base_low > addon_low)
- res += base_low - addon_low;
- else if (base_low < addon_low) {
- res += interval + base_low - addon_low;
- res += (1 << 24);
- } else
- res += (1 << 24);
-
- return cpu_to_le32(res);
-}
-
static int iwl3945_get_measurement(struct iwl_priv *priv,
struct ieee80211_measurement_params *params,
u8 type)
@@ -731,8 +682,7 @@ static int iwl3945_get_measurement(struct iwl_priv *priv,
int duration = le16_to_cpu(params->duration);
if (iwl_is_associated(priv))
- add_time =
- iwl3945_usecs_to_beacons(
+ add_time = iwl_usecs_to_beacons(priv,
le64_to_cpu(params->start_time) - priv->_3945.last_tsf,
le16_to_cpu(priv->rxon_timing.beacon_interval));
@@ -747,8 +697,8 @@ static int iwl3945_get_measurement(struct iwl_priv *priv,
if (iwl_is_associated(priv))
spectrum.start_time =
- iwl3945_add_beacon_time(priv->_3945.last_beacon_time,
- add_time,
+ iwl_add_beacon_time(priv,
+ priv->_3945.last_beacon_time, add_time,
le16_to_cpu(priv->rxon_timing.beacon_interval));
else
spectrum.start_time = 0;