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authorSujith Manoharan <c_manoha@qca.qualcomm.com>2013-09-03 10:28:55 +0530
committerJohn W. Linville <linville@tuxdriver.com>2013-09-26 15:13:30 -0400
commitd3b371cb03330fc2474d418b0a86a5fea7267370 (patch)
tree26166aedbcc43a8ef7a9dbe3d8d3886ccb5c390d /drivers/net/wireless/ath/ath9k
parent3fcdd0a12ee0adb139d64b58658366191cb168a7 (diff)
downloadblackbird-op-linux-d3b371cb03330fc2474d418b0a86a5fea7267370.tar.gz
blackbird-op-linux-d3b371cb03330fc2474d418b0a86a5fea7267370.zip
ath9k: Fix regulatory compliance for AR9462/AR9565
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_phy.h4
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c12
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index 6fd752321e36..fca624322dc8 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -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
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index ecc6ec4a1edb..260e0c65f574 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -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;
}
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