4 files changed, 62 insertions, 33 deletions

diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 6a2a96761111..ae311d2dcc16 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1231,6 +1231,10 @@ extern int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout);
 extern unsigned int ath5k_hw_get_ack_timeout(struct ath5k_hw *ah);
 extern int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout);
 extern unsigned int ath5k_hw_get_cts_timeout(struct ath5k_hw *ah);
+/* Clock rate related functions */
+unsigned int ath5k_hw_htoclock(struct ath5k_hw *ah, unsigned int usec);
+unsigned int ath5k_hw_clocktoh(struct ath5k_hw *ah, unsigned int clock);
+unsigned int ath5k_hw_get_clockrate(struct ath5k_hw *ah);
 /* Key table (WEP) functions */
 extern int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry);
 extern int ath5k_hw_is_key_valid(struct ath5k_hw *ah, u16 entry);
@@ -1310,24 +1314,6 @@ extern int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower);
  * Functions used internaly
  */
 
-/*
- * Translate usec to hw clock units
- * TODO: Half/quarter rate
- */
-static inline unsigned int ath5k_hw_htoclock(unsigned int usec, bool turbo)
-{
-	return turbo ? (usec * 80) : (usec * 40);
-}
-
-/*
- * Translate hw clock units to usec
- * TODO: Half/quarter rate
- */
-static inline unsigned int ath5k_hw_clocktoh(unsigned int clock, bool turbo)
-{
-	return turbo ? (clock / 80) : (clock / 40);
-}
-
 static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah)
 {
         return &ah->common;
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index 64fc1eb9b6d9..b601ff9865fd 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -187,8 +187,8 @@ unsigned int ath5k_hw_get_ack_timeout(struct ath5k_hw *ah)
 {
 	ATH5K_TRACE(ah->ah_sc);
 
-	return ath5k_hw_clocktoh(AR5K_REG_MS(ath5k_hw_reg_read(ah,
-			AR5K_TIME_OUT), AR5K_TIME_OUT_ACK), ah->ah_turbo);
+	return ath5k_hw_clocktoh(ah, AR5K_REG_MS(ath5k_hw_reg_read(ah,
+			AR5K_TIME_OUT), AR5K_TIME_OUT_ACK));
 }
 
 /**
@@ -200,12 +200,12 @@ unsigned int ath5k_hw_get_ack_timeout(struct ath5k_hw *ah)
 int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout)
 {
 	ATH5K_TRACE(ah->ah_sc);
-	if (ath5k_hw_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_ACK),
-			ah->ah_turbo) <= timeout)
+	if (ath5k_hw_clocktoh(ah, AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_ACK))
+			<= timeout)
 		return -EINVAL;
 
 	AR5K_REG_WRITE_BITS(ah, AR5K_TIME_OUT, AR5K_TIME_OUT_ACK,
-		ath5k_hw_htoclock(timeout, ah->ah_turbo));
+		ath5k_hw_htoclock(ah, timeout));
 
 	return 0;
 }
@@ -218,8 +218,8 @@ int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout)
 unsigned int ath5k_hw_get_cts_timeout(struct ath5k_hw *ah)
 {
 	ATH5K_TRACE(ah->ah_sc);
-	return ath5k_hw_clocktoh(AR5K_REG_MS(ath5k_hw_reg_read(ah,
-			AR5K_TIME_OUT), AR5K_TIME_OUT_CTS), ah->ah_turbo);
+	return ath5k_hw_clocktoh(ah, AR5K_REG_MS(ath5k_hw_reg_read(ah,
+			AR5K_TIME_OUT), AR5K_TIME_OUT_CTS));
 }
 
 /**
@@ -231,17 +231,61 @@ unsigned int ath5k_hw_get_cts_timeout(struct ath5k_hw *ah)
 int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout)
 {
 	ATH5K_TRACE(ah->ah_sc);
-	if (ath5k_hw_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_CTS),
-			ah->ah_turbo) <= timeout)
+	if (ath5k_hw_clocktoh(ah, AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_CTS))
+			<= timeout)
 		return -EINVAL;
 
 	AR5K_REG_WRITE_BITS(ah, AR5K_TIME_OUT, AR5K_TIME_OUT_CTS,
-			ath5k_hw_htoclock(timeout, ah->ah_turbo));
+			ath5k_hw_htoclock(ah, timeout));
 
 	return 0;
 }
 
 /**
+ * ath5k_hw_htoclock - Translate usec to hw clock units
+ *
+ * @ah: The &struct ath5k_hw
+ * @usec: value in microseconds
+ */
+unsigned int ath5k_hw_htoclock(struct ath5k_hw *ah, unsigned int usec)
+{
+	return usec * ath5k_hw_get_clockrate(ah);
+}
+
+/**
+ * ath5k_hw_clocktoh - Translate hw clock units to usec
+ * @clock: value in hw clock units
+ */
+unsigned int ath5k_hw_clocktoh(struct ath5k_hw *ah, unsigned int clock)
+{
+	return clock / ath5k_hw_get_clockrate(ah);
+}
+
+/**
+ * ath5k_hw_get_clockrate - Get the clock rate for current mode
+ *
+ * @ah: The &struct ath5k_hw
+ */
+unsigned int ath5k_hw_get_clockrate(struct ath5k_hw *ah)
+{
+	struct ieee80211_channel *channel = ah->ah_current_channel;
+	int clock;
+
+	if (channel->hw_value & CHANNEL_5GHZ)
+		clock = 40; /* 802.11a */
+	else if (channel->hw_value & CHANNEL_CCK)
+		clock = 22; /* 802.11b */
+	else
+		clock = 44; /* 802.11g */
+
+	/* Clock rate in turbo modes is twice the normal rate */
+	if (channel->hw_value & CHANNEL_TURBO)
+		clock *= 2;
+
+	return clock;
+}
+
+/**
  * ath5k_hw_set_lladdr - Set station id
  *
  * @ah: The &struct ath5k_hw
diff --git a/drivers/net/wireless/ath/ath5k/qcu.c b/drivers/net/wireless/ath/ath5k/qcu.c
index e322a104e7fe..abe36c0d139c 100644
--- a/drivers/net/wireless/ath/ath5k/qcu.c
+++ b/drivers/net/wireless/ath/ath5k/qcu.c
@@ -529,7 +529,7 @@ unsigned int ath5k_hw_get_slot_time(struct ath5k_hw *ah)
 	else
 		slot_time_clock = ath5k_hw_reg_read(ah, AR5K_DCU_GBL_IFS_SLOT);
 
-	return ath5k_hw_clocktoh(slot_time_clock & 0xffff, ah->ah_turbo);
+	return ath5k_hw_clocktoh(ah, slot_time_clock & 0xffff);
 }
 
 /*
@@ -537,7 +537,7 @@ unsigned int ath5k_hw_get_slot_time(struct ath5k_hw *ah)
  */
 int ath5k_hw_set_slot_time(struct ath5k_hw *ah, unsigned int slot_time)
 {
-	u32 slot_time_clock = ath5k_hw_htoclock(slot_time, ah->ah_turbo);
+	u32 slot_time_clock = ath5k_hw_htoclock(ah, slot_time);
 
 	ATH5K_TRACE(ah->ah_sc);
 
diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index 62954fc77869..299b33a03979 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -60,12 +60,11 @@ static inline int ath5k_hw_write_ofdm_timings(struct ath5k_hw *ah,
 		!(channel->hw_value & CHANNEL_OFDM));
 
 	/* Get coefficient
-	 * ALGO: coef = (5 * clock * carrier_freq) / 2)
+	 * ALGO: coef = (5 * clock / carrier_freq) / 2
 	 * we scale coef by shifting clock value by 24 for
 	 * better precision since we use integers */
 	/* TODO: Half/quarter rate */
-	clock =  ath5k_hw_htoclock(1, channel->hw_value & CHANNEL_TURBO);
-
+	clock =  (channel->hw_value & CHANNEL_TURBO) ? 80 : 40;
 	coef_scaled = ((5 * (clock << 24)) / 2) / channel->center_freq;
 
 	/* Get exponent