diff options
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/phy.c | 65 |
1 files changed, 42 insertions, 23 deletions
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c index b908915..9392320 100644 --- a/drivers/net/wireless/ath/ath5k/phy.c +++ b/drivers/net/wireless/ath/ath5k/phy.c @@ -3090,7 +3090,7 @@ ath5k_setup_rate_powertable(struct ath5k_hw *ah, u16 max_pwr, */ static int ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel, - u8 ee_mode, u8 txpower) + u8 ee_mode, u8 txpower, bool fast) { struct ath5k_rate_pcal_info rate_info; u8 type; @@ -3126,10 +3126,15 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel, return -EINVAL; } - /* FIXME: Only on channel/mode change */ - ret = ath5k_setup_channel_powertable(ah, channel, ee_mode, type); - if (ret) - return ret; + /* If fast is set it means we are on the same channel/mode + * so there is no need to recalculate the powertable, we 'll + * just use the cached one */ + if (!fast) { + ret = ath5k_setup_channel_powertable(ah, channel, + ee_mode, type); + if (ret) + return ret; + } /* Limit max power if we have a CTL available */ ath5k_get_max_ctl_power(ah, channel); @@ -3210,7 +3215,7 @@ int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower) ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_TXPOWER, "changing txpower to %d\n", txpower); - return ath5k_hw_txpower(ah, channel, ee_mode, txpower); + return ath5k_hw_txpower(ah, channel, ee_mode, txpower, true); } /*************\ @@ -3220,13 +3225,42 @@ int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower) int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel, u8 mode, u8 ee_mode, u8 freq) { + struct ieee80211_channel *curr_channel; int ret, i; u32 phy_tst1; - + bool fast_txp; ret = 0; /* - * 5211/5212 Specific + * If we don't change channel/mode skip + * tx powertable calculation and use the + * cached one. + */ + curr_channel = ah->ah_current_channel; + if ((channel->hw_value == curr_channel->hw_value) && + (channel->center_freq == curr_channel->center_freq)) + fast_txp = true; + else + fast_txp = false; + + /* + * Set TX power + * + * Note: We need to do that before we set + * RF buffer settings on 5211/5212+ so that we + * properly set curve indices. + */ + ret = ath5k_hw_txpower(ah, channel, ee_mode, + ah->ah_txpower.txp_max_pwr / 2, + fast_txp); + if (ret) + return ret; + + /* + * For 5210 we do all initialization using + * initvals, so we don't have to modify + * any settings (5210 also only supports + * a/aturbo modes) */ if (ah->ah_version != AR5K_AR5210) { @@ -3241,21 +3275,12 @@ int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel, mdelay(1); /* - * Set TX power - */ - ret = ath5k_hw_txpower(ah, channel, ee_mode, - ah->ah_txpower.txp_max_pwr / 2); - if (ret) - return ret; - - /* * Write RF buffer */ ret = ath5k_hw_rfregs_init(ah, channel, mode); if (ret) return ret; - /* Write OFDM timings on 5212*/ if (ah->ah_version == AR5K_AR5212 && channel->hw_value & CHANNEL_OFDM) { @@ -3284,12 +3309,6 @@ int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel, } } else { - /* - * For 5210 we do all initialization using - * initvals, so we don't have to modify - * any settings (5210 also only supports - * a/aturbo modes) - */ mdelay(1); /* Disable phy and wait */ ath5k_hw_reg_write(ah, AR5K_PHY_ACT_DISABLE, AR5K_PHY_ACT); |