From: Yan-Hsuan Chuang <[email protected]> When driver is going to sleep, it does not leave LPS/IPS, thus the BTCoex may have mismatch when driver wakes up. To avoid that, BTCoex needs to clear the IPS/LPS state when it receives a pnp notify, then it can properly set up the hw when driver wakes up.
Signed-off-by: Yan-Hsuan Chuang <[email protected]> Cc: Pkshih <[email protected]> Cc: Birming Chiu <[email protected]> Cc: Shaofu <[email protected]> Cc: Steven Ting <[email protected]> --- .../realtek/rtlwifi/btcoexist/halbtc8723b2ant.c | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c index 8d8425d..735bba9 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c @@ -3826,6 +3826,33 @@ void ex_btc8723b2ant_halt_notify(struct btc_coexist *btcoexist) ex_btc8723b2ant_media_status_notify(btcoexist, BTC_MEDIA_DISCONNECT); } +void ex_btc8723b2ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state) +{ + struct rtl_priv *rtlpriv = btcoexist->adapter; + + RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, "[BTCoex], Pnp notify\n"); + + if (pnp_state == BTC_WIFI_PNP_SLEEP) { + RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, + "[BTCoex], Pnp notify to SLEEP\n"); + + /* Driver do not leave IPS/LPS when driver is going to sleep, so + * BTCoexistence think wifi is still under IPS/LPS + * + * BT should clear UnderIPS/UnderLPS state to avoid mismatch + * state after wakeup. + */ + coex_sta->under_ips = false; + coex_sta->under_lps = false; + } else if (pnp_state == BTC_WIFI_PNP_WAKE_UP) { + RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, + "[BTCoex], Pnp notify to WAKE UP\n"); + ex_btc8723b2ant_init_hwconfig(btcoexist); + btc8723b2ant_init_coex_dm(btcoexist); + btc8723b2ant_query_bt_info(btcoexist); + } +} + void ex_btc8723b2ant_periodical(struct btc_coexist *btcoexist) { struct rtl_priv *rtlpriv = btcoexist->adapter; -- 2.10.2
