From 158707f9584c960c57f332570d43dedafbbee6f0 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Tue, 16 May 2017 08:19:51 -0500
Subject: [PATCH] rtlwifi: btcoex: Restore 23b 1ant routine for tdma adjustment
Git-commit: 158707f9584c960c57f332570d43dedafbbee6f0
Patch-mainline: v4.13-rc1
References: FATE#326906
Routine btc8723b1ant_tdma_dur_adj_for_acl() was removed in a set of
Sparse fixes; however, this routine will be needed later.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
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: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
.../rtlwifi/btcoexist/halbtc8723b1ant.c | 177 +++++++++++++++++-
1 file changed, 176 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
index f23c9e3fbda1..df0782c17905 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
@@ -1066,8 +1066,183 @@ static void halbtc8723b1ant_ps_tdma(struct btc_coexist *btcoexist,
coex_dm->pre_ps_tdma = coex_dm->cur_ps_tdma;
}
+void btc8723b1ant_tdma_dur_adj_for_acl(struct btc_coexist *btcoexist,
+ u8 wifi_status)
+{
+ struct rtl_priv *rtlpriv = btcoexist->adapter;
+ static s32 up, dn, m, n, wait_count;
+ /* 0: no change, +1: increase WiFi duration,
+ * -1: decrease WiFi duration
+ */
+ s32 result;
+ u8 retry_count = 0, bt_info_ext;
+ bool wifi_busy = false;
+
+ RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+ "[BTCoex], TdmaDurationAdjustForAcl()\n");
+
+ if (wifi_status == BT_8723B_1ANT_WIFI_STATUS_CONNECTED_BUSY)
+ wifi_busy = true;
+ else
+ wifi_busy = false;
+
+ if ((wifi_status ==
+ BT_8723B_1ANT_WIFI_STATUS_NON_CONNECTED_ASSO_AUTH_SCAN) ||
+ (wifi_status == BT_8723B_1ANT_WIFI_STATUS_CONNECTED_SCAN) ||
+ (wifi_status == BT_8723B_1ANT_WIFI_STATUS_CONNECTED_SPECIAL_PKT)) {
+ if (coex_dm->cur_ps_tdma != 1 && coex_dm->cur_ps_tdma != 2 &&
+ coex_dm->cur_ps_tdma != 3 && coex_dm->cur_ps_tdma != 9) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 9);
+ coex_dm->tdma_adj_type = 9;
+
+ up = 0;
+ dn = 0;
+ m = 1;
+ n = 3;
+ result = 0;
+ wait_count = 0;
+ }
+ return;
+ }
+
+ if (!coex_dm->auto_tdma_adjust) {
+ coex_dm->auto_tdma_adjust = true;
+ RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+ "[BTCoex], first run TdmaDurationAdjust()!!\n");
+
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC, true, 2);
+ coex_dm->tdma_adj_type = 2;
+
+ up = 0;
+ dn = 0;
+ m = 1;
+ n = 3;
+ result = 0;
+ wait_count = 0;
+ } else {
+ /* acquire the BT TRx retry count from BT_Info byte2 */
+ retry_count = coex_sta->bt_retry_cnt;
+ bt_info_ext = coex_sta->bt_info_ext;
+ result = 0;
+ wait_count++;
+ /* no retry in the last 2-second duration */
+ if (retry_count == 0) {
+ up++;
+ dn--;
+
+ if (dn <= 0)
+ dn = 0;
+
+ if (up >= n) {
+ wait_count = 0;
+ n = 3;
+ up = 0;
+ dn = 0;
+ result = 1;
+ RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+ "[BTCoex], Increase wifi duration!!\n");
+ }
+ } else if (retry_count <= 3) {
+ up--;
+ dn++;
+
+ if (up <= 0)
+ up = 0;
+
+ if (dn == 2) {
+ if (wait_count <= 2)
+ m++;
+ else
+ m = 1;
+
+ if (m >= 20)
+ m = 20;
+
+ n = 3 * m;
+ up = 0;
+ dn = 0;
+ wait_count = 0;
+ result = -1;
+ RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+ "[BTCoex], Decrease wifi duration for retryCounter<3!!\n");
+ }
+ } else {
+ if (wait_count == 1)
+ m++;
+ else
+ m = 1;
+
+ if (m >= 20)
+ m = 20;
+
+ n = 3 * m;
+ up = 0;
+ dn = 0;
+ wait_count = 0;
+ result = -1;
+ RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+ "[BTCoex], Decrease wifi duration for retryCounter>3!!\n");
+ }
+
+ if (result == -1) {
+ if ((BT_INFO_8723B_1ANT_A2DP_BASIC_RATE(bt_info_ext)) &&
+ ((coex_dm->cur_ps_tdma == 1) ||
+ (coex_dm->cur_ps_tdma == 2))) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 9);
+ coex_dm->tdma_adj_type = 9;
+ } else if (coex_dm->cur_ps_tdma == 1) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 2);
+ coex_dm->tdma_adj_type = 2;
+ } else if (coex_dm->cur_ps_tdma == 2) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 9);
+ coex_dm->tdma_adj_type = 9;
+ } else if (coex_dm->cur_ps_tdma == 9) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 11);
+ coex_dm->tdma_adj_type = 11;
+ }
+ } else if (result == 1) {
+ if ((BT_INFO_8723B_1ANT_A2DP_BASIC_RATE(bt_info_ext)) &&
+ ((coex_dm->cur_ps_tdma == 1) ||
+ (coex_dm->cur_ps_tdma == 2))) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 9);
+ coex_dm->tdma_adj_type = 9;
+ } else if (coex_dm->cur_ps_tdma == 11) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 9);
+ coex_dm->tdma_adj_type = 9;
+ } else if (coex_dm->cur_ps_tdma == 9) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 2);
+ coex_dm->tdma_adj_type = 2;
+ } else if (coex_dm->cur_ps_tdma == 2) {
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC,
+ true, 1);
+ coex_dm->tdma_adj_type = 1;
+ }
+ } else {
+ /* if busy / idle change */
+ RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+ "[BTCoex],********* TDMA(on, %d) ********\n",
+ coex_dm->cur_ps_tdma);
+ }
+
+ if (coex_dm->cur_ps_tdma != 1 && coex_dm->cur_ps_tdma != 2 &&
+ coex_dm->cur_ps_tdma != 9 && coex_dm->cur_ps_tdma != 11) {
+ /* recover to previous adjust type */
+ halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC, true,
+ coex_dm->tdma_adj_type);
+ }
+ }
+}
+
static void halbtc8723b1ant_ps_tdma_chk_pwr_save(struct btc_coexist *btcoexist,
- bool new_ps_state)
+ bool new_ps_state)
{
u8 lps_mode = 0x0;
--
2.19.2