rtw88: coex: add the mechanism for RF4CE

Add the related coexistence mechanism about RF4CE and WLAN connected
flag to decide control packet is whether higher or normal priority.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-6-pkshih@realtek.com

diff --git a/drivers/net/wireless/realtek/rtw88/coex.c b/drivers/net/wireless/realtek/rtw88/coex.c
index d098a0c..9ab31fb 100644 (file)
--- a/drivers/net/wireless/realtek/rtw88/coex.c
+++ b/drivers/net/wireless/realtek/rtw88/coex.c
@@ -1389,6 +1389,31 @@ static void rtw_coex_action_freerun(struct rtw_dev *rtwdev)
        rtw_coex_tdma(rtwdev, false, 100);
 }
 
+static void rtw_coex_action_rf4ce(struct rtw_dev *rtwdev)
+{
+       struct rtw_efuse *efuse = &rtwdev->efuse;
+       struct rtw_chip_info *chip = rtwdev->chip;
+       u8 table_case, tdma_case;
+
+       rtw_dbg(rtwdev, RTW_DBG_COEX, "[BTCoex], %s()\n", __func__);
+
+       rtw_coex_set_ant_path(rtwdev, false, COEX_SET_ANT_2G);
+       rtw_coex_set_rf_para(rtwdev, chip->wl_rf_para_rx[0]);
+
+       if (efuse->share_ant) {
+               /* Shared-Ant */
+               table_case = 9;
+               tdma_case = 16;
+       } else {
+               /* Non-Shared-Ant */
+               table_case = 100;
+               tdma_case = 100;
+       }
+
+       rtw_coex_table(rtwdev, false, table_case);
+       rtw_coex_tdma(rtwdev, false, tdma_case);
+}
+
 static void rtw_coex_action_bt_whql_test(struct rtw_dev *rtwdev)
 {
        struct rtw_efuse *efuse = &rtwdev->efuse;
@@ -2179,6 +2204,7 @@ static void rtw_coex_run_coex(struct rtw_dev *rtwdev, u8 reason)
        struct rtw_coex *coex = &rtwdev->coex;
        struct rtw_coex_dm *coex_dm = &coex->dm;
        struct rtw_coex_stat *coex_stat = &coex->stat;
+       bool rf4ce_en = false;
 
        lockdep_assert_held(&rtwdev->mutex);
 
@@ -2234,7 +2260,12 @@ static void rtw_coex_run_coex(struct rtw_dev *rtwdev, u8 reason)
        coex_stat->wl_coex_mode = COEX_WLINK_2G1PORT;
        rtw_coex_write_scbd(rtwdev, COEX_SCBD_FIX2M, false);
        if (coex_stat->bt_disabled) {
-               rtw_coex_action_wl_only(rtwdev);
+               if (coex_stat->wl_connected && rf4ce_en)
+                       rtw_coex_action_rf4ce(rtwdev);
+               else if (!coex_stat->wl_connected)
+                       rtw_coex_action_wl_not_connected(rtwdev);
+               else
+                       rtw_coex_action_wl_only(rtwdev);
                goto exit;
        }