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ath9k: Fix regulatory compliance for AR9462/AR9565

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Adjust the CCA values based on the regulatory domain
present in the EEPROM.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2013-09-03 10:28:55 +05:30 committed by John W. Linville
parent 3fcdd0a12e
commit d3b371cb03
2 changed files with 16 additions and 0 deletions
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4
drivers/net/wireless/ath/ath9k/ar9003_phy.h
View file

@ -343,8 +343,12 @@
#define AR_PHY_CCA_NOM_VAL_9462_2GHZ -127
#define AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ -127
#define AR_PHY_CCA_MAX_GOOD_VAL_9462_2GHZ -60
#define AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_2GHZ -95
#define AR_PHY_CCA_NOM_VAL_9462_5GHZ -127
#define AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ -127
#define AR_PHY_CCA_MAX_GOOD_VAL_9462_5GHZ -60
#define AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_5GHZ -100
#define AR_PHY_CCA_NOM_VAL_9330_2GHZ -118

12
drivers/net/wireless/ath/ath9k/hw.c
View file

@ -549,6 +549,18 @@ static int ath9k_hw_post_init(struct ath_hw *ah)
ath9k_hw_ani_init(ah);
/*
* EEPROM needs to be initialized before we do this.
* This is required for regulatory compliance.
*/
if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
u16 regdmn = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
if ((regdmn & 0xF0) == CTL_FCC) {
ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_2GHZ;
ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_5GHZ;
}
}
return 0;
}