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Commit a66a4176 authored by Yan-Hsuan Chuang's avatar Yan-Hsuan Chuang Committed by Kalle Valo
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rtlwifi: btcoex: 23b 2ant: add comments to describe how duration adjusted 



Since btcoex uses static variables to store the cumulative information
on the wifi status, some tricks are used that are a bit obscure. We add
some comments about the criteria we use to adjust wifi duration.

Signed-off-by: default avatarYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: default avatarLarry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 44e9a534

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c

+19 −0
Original line number Diff line number Diff line
@@ -1622,6 +1622,9 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist, 
				dn = 0;



			if (up >= n) {

				/* if retry count during continuous n*2

				 * seconds is 0, enlarge WiFi duration

				 */

				wait_count = 0;

				n = 3;

				up = 0;
@@ -1638,12 +1641,20 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist, 
				up = 0;



			if (dn == 2) {

				/* if continuous 2 retry count(every 2

				 * seconds) >0 and < 3, reduce WiFi duration

				 */

				if (wait_count <= 2)

					/* avoid loop between the two levels */

					m++;

				else

					m = 1;



				if (m >= 20)

					/* maximum of m = 20 ' will recheck if

					 * need to adjust wifi duration in

					 * maximum time interval 120 seconds

					 */

					m = 20;



				n = 3 * m;
@@ -1655,12 +1666,20 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist, 
					 "[BTCoex], Decrease wifi duration for retry_counter<3!!\n");

			}

		} else {

			/* retry count > 3, once retry count > 3, to reduce

			 *  WiFi duration

			 */

			if (wait_count == 1)

				/* to avoid loop between the two levels */

				m++;

			else

				m = 1;



			if (m >= 20)

				/* maximum of m = 20 ' will recheck if need to

				 * adjust wifi duration in maximum time interval

				 * 120 seconds

				 */

				m = 20;



			n = 3 * m;