ath9k_hw: store the clock rate in common data on channel changes
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index cee0191..b36d9d7 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -145,6 +145,8 @@
DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
enum ath_crypt_caps crypt_caps;
+ unsigned int clockrate;
+
struct ath_regulatory regulatory;
const struct ath_ops *ops;
const struct ath_bus_ops *bus_ops;
diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index f2a907b..f2aa684 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -465,35 +465,13 @@
ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel - 1);
}
-static u8 ath9k_hw_chan_2_clockrate_mhz(struct ath_hw *ah)
-{
- struct ath9k_channel *chan = ah->curchan;
- struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
- u8 clockrate; /* in MHz */
-
- if (!ah->curchan) /* should really check for CCK instead */
- clockrate = ATH9K_CLOCK_RATE_CCK;
- else if (conf->channel->band == IEEE80211_BAND_2GHZ)
- clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
- else if (IS_CHAN_A_FAST_CLOCK(ah, chan))
- clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
- else
- clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
-
- if (conf_is_ht40(conf))
- return clockrate * 2;
-
- return clockrate;
-}
-
static int32_t ath9k_hw_ani_get_listen_time(struct ath_hw *ah)
{
+ struct ath_common *common = ath9k_hw_common(ah);
int32_t listen_time;
- int32_t clock_rate;
ath9k_hw_update_cycle_counters(ah);
- clock_rate = ath9k_hw_chan_2_clockrate_mhz(ah) * 1000;
- listen_time = ah->listen_time / clock_rate;
+ listen_time = ah->listen_time / (common->clockrate * 1000);
ah->listen_time = 0;
return listen_time;
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 05e9935..f5d7917 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -88,29 +88,32 @@
/* Helper Functions */
/********************/
-static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
+static void ath9k_hw_set_clockrate(struct ath_hw *ah)
{
struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
+ struct ath_common *common = ath9k_hw_common(ah);
+ unsigned int clockrate;
if (!ah->curchan) /* should really check for CCK instead */
- return usecs *ATH9K_CLOCK_RATE_CCK;
- if (conf->channel->band == IEEE80211_BAND_2GHZ)
- return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
-
- if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
- return usecs * ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
+ clockrate = ATH9K_CLOCK_RATE_CCK;
+ else if (conf->channel->band == IEEE80211_BAND_2GHZ)
+ clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
+ else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
+ clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
else
- return usecs * ATH9K_CLOCK_RATE_5GHZ_OFDM;
+ clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
+
+ if (conf_is_ht40(conf))
+ clockrate *= 2;
+
+ common->clockrate = clockrate;
}
static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
{
- struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
+ struct ath_common *common = ath9k_hw_common(ah);
- if (conf_is_ht40(conf))
- return ath9k_hw_mac_clks(ah, usecs) * 2;
- else
- return ath9k_hw_mac_clks(ah, usecs);
+ return usecs * common->clockrate;
}
bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
@@ -1156,6 +1159,7 @@
"Failed to set channel\n");
return false;
}
+ ath9k_hw_set_clockrate(ah);
ah->eep_ops->set_txpower(ah, chan,
ath9k_regd_get_ctl(regulatory, chan),
@@ -1368,6 +1372,8 @@
if (r)
return r;
+ ath9k_hw_set_clockrate(ah);
+
ENABLE_REGWRITE_BUFFER(ah);
for (i = 0; i < AR_NUM_DCU; i++)