Commit 2a0eef1a authored by Sujith Manoharan's avatar Sujith Manoharan Committed by Kalle Valo
Browse files

ath9k: Fix descriptors for keep-alive frame 



Along with AR9462, AR9565 also has an extra field
in the TX descriptor which needs to be zeroed out
for the keep alive frame. This makes the earlier
REG_WRITE redundant, so it can be removed.

Signed-off-by: default avatarSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 009f33ed

drivers/net/wireless/ath/ath9k/ar9003_wow.c

+5 −6
Original line number Diff line number Diff line
@@ -74,8 +74,6 @@ static void ath9k_wow_create_keep_alive_pattern(struct ath_hw *ah) 
	for (i = 0; i < KAL_NUM_DESC_WORDS; i++)

		REG_WRITE(ah, (AR_WOW_KA_DESC_WORD2 + i * 4), ctl[i]);



	REG_WRITE(ah, (AR_WOW_KA_DESC_WORD2 + i * 4), ctl[i]);



	data_word[0] = (KAL_FRAME_TYPE << 2) | (KAL_FRAME_SUB_TYPE << 4) |

		       (KAL_TO_DS << 8) | (KAL_DURATION_ID << 16);

	data_word[1] = (ap_mac_addr[3] << 24) | (ap_mac_addr[2] << 16) |
@@ -88,9 +86,11 @@ static void ath9k_wow_create_keep_alive_pattern(struct ath_hw *ah) 
		       (ap_mac_addr[1] << 8) | (ap_mac_addr[0]);

	data_word[5] = (ap_mac_addr[5] << 8) | (ap_mac_addr[4]);



	if (AR_SREV_9462_20(ah)) {

		/* AR9462 2.0 has an extra descriptor word (time based

		 * discard) compared to other chips */

	if (AR_SREV_9462_20_OR_LATER(ah) || AR_SREV_9565(ah)) {

		/*

		 * AR9462 2.0 and AR9565 have an extra descriptor word

		 * (time based discard) compared to other chips.

		 */

		REG_WRITE(ah, (AR_WOW_KA_DESC_WORD2 + (12 * 4)), 0);

		wow_ka_data_word0 = AR_WOW_TXBUF(13);

	} else {
@@ -99,7 +99,6 @@ static void ath9k_wow_create_keep_alive_pattern(struct ath_hw *ah) 


	for (i = 0; i < KAL_NUM_DATA_WORDS; i++)

		REG_WRITE(ah, (wow_ka_data_word0 + i*4), data_word[i]);



}



int ath9k_hw_wow_apply_pattern(struct ath_hw *ah, u8 *user_pattern,