From e68a060b5d88a72c06ec87864d20bea3f2a40629 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Mon, 19 Oct 2009 02:33:41 -0400
Subject: [PATCH] ath9k_hw: use a callback for frequency change
This avoids a branch on every channel change.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/hw.c | 15 ++++++---------
drivers/net/wireless/ath/ath9k/hw.h | 4 +++-
2 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index d4dc1cbe00aa..f2b2f45d3a78 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -951,8 +951,11 @@ int ath9k_hw_init(struct ath_hw *ah)
ath9k_hw_init_cal_settings(ah);
ah->ani_function = ATH9K_ANI_ALL;
- if (AR_SREV_9280_10_OR_LATER(ah))
+ if (AR_SREV_9280_10_OR_LATER(ah)) {
ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
+ ah->ath9k_hw_rf_set_freq = &ath9k_hw_ar9280_set_channel;
+ } else
+ ah->ath9k_hw_rf_set_freq = &ath9k_hw_set_channel;
ath9k_hw_init_mode_regs(ah);
@@ -1889,10 +1892,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
ath9k_hw_set_regs(ah, chan);
- if (AR_SREV_9280_10_OR_LATER(ah))
- r = ath9k_hw_ar9280_set_channel(ah, chan);
- else
- r = ath9k_hw_set_channel(ah, chan);
+ r = ah->ath9k_hw_rf_set_freq(ah, chan);
if (r) {
ath_print(common, ATH_DBG_FATAL,
"Failed to set channel\n");
@@ -2534,10 +2534,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
- if (AR_SREV_9280_10_OR_LATER(ah))
- r = ath9k_hw_ar9280_set_channel(ah, chan);
- else
- r = ath9k_hw_set_channel(ah, chan);
+ r = ah->ath9k_hw_rf_set_freq(ah, chan);
if (r)
return r;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 7f2b5d21f2f1..dcf1295f4eb4 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -548,7 +548,9 @@ struct ath_hw {
DONT_USE_32KHZ,
} enable_32kHz_clock;
- /* RF */
+ /* Callback for radio frequency change */
+ int (*ath9k_hw_rf_set_freq)(struct ath_hw *ah, struct ath9k_channel *chan);
+ /* Used to program the radio on non single-chip devices */
u32 *analogBank0Data;
u32 *analogBank1Data;
u32 *analogBank2Data;
--
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