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path: root/drivers/net/wireless/ath/ath9k/common.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/common.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/common.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index fa6bd2d189e5..dc705a224952 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -169,6 +169,32 @@ void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
}
EXPORT_SYMBOL(ath9k_cmn_update_txpow);
+void ath9k_cmn_init_crypto(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int i = 0;
+
+ /* Get the hardware key cache size. */
+ common->keymax = AR_KEYTABLE_SIZE;
+
+ /*
+ * Check whether the separate key cache entries
+ * are required to handle both tx+rx MIC keys.
+ * With split mic keys the number of stations is limited
+ * to 27 otherwise 59.
+ */
+ if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
+ common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
+
+ /*
+ * Reset the key cache since some parts do not
+ * reset the contents on initial power up.
+ */
+ for (i = 0; i < common->keymax; i++)
+ ath_hw_keyreset(common, (u16) i);
+}
+EXPORT_SYMBOL(ath9k_cmn_init_crypto);
+
static int __init ath9k_cmn_init(void)
{
return 0;