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| author |   Gabor Juhos <juhosg@openwrt.org> | 2012-04-14 22:01:58 +0200 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2012-04-16 14:38:53 -0400 |
| commit | ea6f792b2b893249e0eeffdb3fe0ea191eaf80d7 (patch) | |
| tree | 1e306360812654cd4988b09ea01ab8eb53c8cf37 /drivers/net/wireless/ath/ath9k/eeprom_def.c | |
| parent | ath9k: use consistent value for REDUCE_SCALED_POWER_BY_THREE_CHAIN (diff) | |
| download | linux-dev-ea6f792b2b893249e0eeffdb3fe0ea191eaf80d7.tar.xz linux-dev-ea6f792b2b893249e0eeffdb3fe0ea191eaf80d7.zip | |
ath9k: introduce ath9k_hw_get_scaled_power helper
The computation of the scaled power value in
various eeprom files uses identical code. Move
that code into a helper function and use that
instead of code duplication.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/eeprom_def.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/eeprom_def.c | 23 |
1 files changed, 2 insertions, 21 deletions
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c index 6a85796a342c..b5fba8b18b8b 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_def.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c @@ -991,9 +991,6 @@ static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah, u16 antenna_reduction, u16 powerLimit) { -#define REDUCE_SCALED_POWER_BY_TWO_CHAIN 6 /* 10*log10(2)*2 */ -#define REDUCE_SCALED_POWER_BY_THREE_CHAIN 10 /* 10*log10(3)*2 */ - struct ar5416_eeprom_def *pEepData = &ah->eeprom.def; u16 twiceMaxEdgePower; int i; @@ -1027,24 +1024,8 @@ static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah, ath9k_hw_get_channel_centers(ah, chan, ¢ers); - scaledPower = powerLimit - antenna_reduction; - - switch (ar5416_get_ntxchains(tx_chainmask)) { - case 1: - break; - case 2: - if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN; - else - scaledPower = 0; - break; - case 3: - if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN; - else - scaledPower = 0; - break; - } + scaledPower = ath9k_hw_get_scaled_power(ah, powerLimit, + antenna_reduction); if (IS_CHAN_2GHZ(chan)) { numCtlModes = ARRAY_SIZE(ctlModesFor11g) - |