Commit 21bd6ea3 authored by Gabor Juhos's avatar Gabor Juhos Committed by John W. Linville
Browse files

ath9k: use consistent value for REDUCE_SCALED_POWER_BY_THREE_CHAIN 



The REDUCE_SCALED_POWER_BY_THREE_CHAIN symbol is
defined in different eeprom files, and the value
varies between the different files.

In eeprom_def.c and in ar9003_eeprom.c the value
of the symbol is 9, however the comments in these
files indicates the value should be 10*log10(3)*2
which is 9.54242509439325. Replace the the value
to 10 in these files.

Also add comments to eeprom_9287.c.

Signed-off-by: default avatarGabor Juhos <juhosg@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d9e9145e

drivers/net/wireless/ath/ath9k/ar9003_eeprom.c

+1 −1
Original line number Diff line number Diff line
@@ -31,7 +31,7 @@ 
#define CTL_11G_EXT (CTL_11G | EXT_ADDITIVE)

#define CTL_11B_EXT (CTL_11B | EXT_ADDITIVE)

#define REDUCE_SCALED_POWER_BY_TWO_CHAIN     6  /* 10*log10(2)*2 */

#define REDUCE_SCALED_POWER_BY_THREE_CHAIN   9  /* 10*log10(3)*2 */

#define REDUCE_SCALED_POWER_BY_THREE_CHAIN   10 /* 10*log10(3)*2 */

#define PWRINCR_3_TO_1_CHAIN      9             /* 10*log(3)*2 */

#define PWRINCR_3_TO_2_CHAIN      3             /* floor(10*log(3/2)*2) */

#define PWRINCR_2_TO_1_CHAIN      6             /* 10*log(2)*2 */

drivers/net/wireless/ath/ath9k/eeprom_9287.c

+2 −2
Original line number Diff line number Diff line
@@ -564,8 +564,8 @@ static void ath9k_hw_set_ar9287_power_per_rate_table(struct ath_hw *ah, 
	(((cfgCtl & ~CTL_MODE_M) | (pCtlMode[ctlMode] & CTL_MODE_M)) == \

	 ((pEepData->ctlIndex[i] & CTL_MODE_M) | SD_NO_CTL))



#define REDUCE_SCALED_POWER_BY_TWO_CHAIN     6

#define REDUCE_SCALED_POWER_BY_THREE_CHAIN   10

#define REDUCE_SCALED_POWER_BY_TWO_CHAIN     6  /* 10*log10(2)*2 */

#define REDUCE_SCALED_POWER_BY_THREE_CHAIN   10 /* 10*log10(3)*2 */



	u16 twiceMaxEdgePower;

	int i;

drivers/net/wireless/ath/ath9k/eeprom_def.c

+1 −1
Original line number Diff line number Diff line
@@ -992,7 +992,7 @@ static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah, 
						  u16 powerLimit)

{

#define REDUCE_SCALED_POWER_BY_TWO_CHAIN     6  /* 10*log10(2)*2 */

#define REDUCE_SCALED_POWER_BY_THREE_CHAIN   9 /* 10*log10(3)*2 */

#define REDUCE_SCALED_POWER_BY_THREE_CHAIN   10 /* 10*log10(3)*2 */



	struct ar5416_eeprom_def *pEepData = &ah->eeprom.def;

	u16 twiceMaxEdgePower;

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