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68 lines
2.6 KiB
Diff
68 lines
2.6 KiB
Diff
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From bfcee5ee924fc5f706d20f5dc31586ca47912304 Mon Sep 17 00:00:00 2001
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From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
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Date: Wed, 23 Oct 2024 17:14:45 +0300
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Subject: [PATCH] wifi: rtw88: 8821a: Regularly ask for BT info updates
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The RTL8821AU firmware sends C2H_BT_INFO by itself when bluetooth
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headphones are connected, but not when they are disconnected. This leads
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to the coexistence code still using the A2DP algorithm long after the
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headphones are disconnected, which means the wifi speeds are much lower
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than they should be. Work around this by asking for updates every two
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seconds if the chip is RTL8821AU.
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Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
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Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
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Link: https://patch.msgid.link/358acdd2-6aae-46c1-9c66-fcce4e700b96@gmail.com
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---
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drivers/net/wireless/realtek/rtw88/coex.c | 2 +-
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drivers/net/wireless/realtek/rtw88/coex.h | 11 +++++++++++
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drivers/net/wireless/realtek/rtw88/main.c | 1 +
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3 files changed, 13 insertions(+), 1 deletion(-)
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--- a/drivers/net/wireless/realtek/rtw88/coex.c
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+++ b/drivers/net/wireless/realtek/rtw88/coex.c
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@@ -446,7 +446,7 @@ static void rtw_coex_check_rfk(struct rt
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}
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}
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-static void rtw_coex_query_bt_info(struct rtw_dev *rtwdev)
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+void rtw_coex_query_bt_info(struct rtw_dev *rtwdev)
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{
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struct rtw_coex *coex = &rtwdev->coex;
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struct rtw_coex_stat *coex_stat = &coex->stat;
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--- a/drivers/net/wireless/realtek/rtw88/coex.h
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+++ b/drivers/net/wireless/realtek/rtw88/coex.h
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@@ -384,6 +384,7 @@ u32 rtw_coex_read_indirect_reg(struct rt
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void rtw_coex_write_indirect_reg(struct rtw_dev *rtwdev, u16 addr,
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u32 mask, u32 val);
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void rtw_coex_write_scbd(struct rtw_dev *rtwdev, u16 bitpos, bool set);
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+void rtw_coex_query_bt_info(struct rtw_dev *rtwdev);
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void rtw_coex_bt_relink_work(struct work_struct *work);
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void rtw_coex_bt_reenable_work(struct work_struct *work);
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@@ -419,4 +420,14 @@ static inline bool rtw_coex_disabled(str
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return coex_stat->bt_disabled;
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}
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+static inline void rtw_coex_active_query_bt_info(struct rtw_dev *rtwdev)
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+{
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+ /* The RTL8821AU firmware doesn't send C2H_BT_INFO by itself
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+ * when bluetooth headphones are disconnected, so we have to
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+ * ask for it regularly.
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+ */
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+ if (rtwdev->chip->id == RTW_CHIP_TYPE_8821A && rtwdev->efuse.btcoex)
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+ rtw_coex_query_bt_info(rtwdev);
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+}
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+
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#endif
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--- a/drivers/net/wireless/realtek/rtw88/main.c
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+++ b/drivers/net/wireless/realtek/rtw88/main.c
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@@ -274,6 +274,7 @@ static void rtw_watch_dog_work(struct wo
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rtw_leave_lps(rtwdev);
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rtw_coex_wl_status_check(rtwdev);
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rtw_coex_query_bt_hid_list(rtwdev);
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+ rtw_coex_active_query_bt_info(rtwdev);
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rtw_phy_dynamic_mechanism(rtwdev);
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