diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2010-07-31 00:12:00 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-08-04 15:27:37 -0400 |
| commit | 20bd2a0952d01ba82a99b3f22d46e3832c255529 (patch) | |
| tree | d875681269e087e6a148593bb1d436849e642b7f /drivers/net/wireless/ath/ath9k/htc_drv_main.c | |
| parent | 5ee0865615f65f84e6ee9174771a6716c29e08e1 (diff) | |
ath9k_hw: clean up per-channel calibration data
The noise floor history buffer is currently not kept per channel, which
can lead to problems when changing channels from a clean channel to a
noisy one. Also when switching from HT20 to HT40, the noise floor
history buffer is full of measurements, but none of them contain data
for the extension channel, which it needs quite a bit of time to recover
from.
This patch puts all the per-channel calibration data into a single data
structure, and gives the the driver control over whether that is used
per-channel or even not used for some channels.
For ath9k_htc, I decided to keep this per-channel in order to avoid
creating regressions.
For ath9k, the data is kept only for the operating channel, which saves
some space. ath9k_hw takes care of wiping old data when the operating
channel or its channel flags change.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_main.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index cf9bcc67ade..ebed9d1691a 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -125,6 +125,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, struct ieee80211_conf *conf = &common->hw->conf; bool fastcc = true; struct ieee80211_channel *channel = hw->conf.channel; + struct ath9k_hw_cal_data *caldata; enum htc_phymode mode; __be16 htc_mode; u8 cmd_rsp; @@ -149,7 +150,8 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, priv->ah->curchan->channel, channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf)); - ret = ath9k_hw_reset(ah, hchan, fastcc); + caldata = &priv->caldata[channel->hw_value]; + ret = ath9k_hw_reset(ah, hchan, caldata, fastcc); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset channel (%u Mhz) " @@ -1028,7 +1030,7 @@ static void ath9k_htc_radio_enable(struct ieee80211_hw *hw) ah->curchan = ath9k_cmn_get_curchannel(hw, ah); /* Reset the HW */ - ret = ath9k_hw_reset(ah, ah->curchan, false); + ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d " @@ -1091,7 +1093,7 @@ static void ath9k_htc_radio_disable(struct ieee80211_hw *hw) ah->curchan = ath9k_cmn_get_curchannel(hw, ah); /* Reset the HW */ - ret = ath9k_hw_reset(ah, ah->curchan, false); + ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d " @@ -1179,7 +1181,7 @@ static int ath9k_htc_start(struct ieee80211_hw *hw) ath9k_hw_configpcipowersave(ah, 0, 0); ath9k_hw_htc_resetinit(ah); - ret = ath9k_hw_reset(ah, init_channel, false); + ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d " |